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UNIVERSITY  OF  CALIFORNIA 
LOS  ANGELES 


THE 


BRITISH  MOSS-FLORA. 


R.  BRAITHWAITE,  M.D.,  F.L.S.,  &c. 


VOL.     I. 

ACROCARPOUS     MOSSES 


'  The  means  therefore  which  unto  us  are  lent, 
Him  to  behold,  is  on  His  workes  to  looke, 
Which  He  hath  made  in  beautie  excellent: 
And  in  the  same,  as  in  a  brazen  booke, 
To  read  enregister'd  in  every  nooke 

His  goodnesse." 

Spenser. 


PUBLISHED    BY    THE    AUTHOR,    AT    303,    CLAPHAM    ROAD. 


All  Rights   Reserved. 


LONDON 
PRINTED    BY   PEWTRESS   &   CO., 

Steam  Printing  Works, 
15,  GKLAT  QUEEN  ST.,  LINCOLN'S  INN  FIELDS,  W.C. 


THE 


BRITISH   MOSS-FLORA 


VOL.    I. 

ACROCARPI     I 


:,    BUXBAUMIACE^,    GEORGIACE^, 
POLYTRICHACE.E,     FISSIDENTACE^E,     LEUCOBRYACE^E, 
DICRANACE.E,    TORTULACE^,    WEBERACE^. 


R.     BRAITHWAITE,     M.D.,     F.L.S.,     &c., 

(SOC.    CRITTOG.    ITAL. — SOC.    PRO    FAUNA    ET    FL.  FENN. — SOC.  NAT.   DBS   SCIEN.    NAT.    DE    CHERB. 

SOC.    CORRESP.) 


LONDON : 

L.    REEVE   &   CO.,  5,  HENRIETTA  STREET,  COVENT  GARDEN. 

1887. 


[ttl 
I/./' 


TO    THE    MEMORY 


OF    THE    LATE    WILLIAM    WILSON, 


OF    WARRINGTON, 

. 

, 

si 

THE     GREATEST     OF     BRITISH     BRYOLOGISTS, 


THIS    WORK    IS    AFFECTIONATELY 


INSCRIBED. 


R.    BRAITHWAITE. 


465598 


PREFACE. 


THE  great  want  of  a  guide  to  our  recently  much-extended  Moss- 
Flora,  and  the  solicitation  of  numerous  friends,  have  induced  the  Author 
to  commence  a  work  which  he  trusts  will  meet  the  requirements  of  all 
who  study  these  interesting  plants. 

The  cell  structure  of  the  leaves,  so  important  in  the  distinction  of 
genera  and  species,  will  receive  due  attention  both  in  the  figures  and 
descriptions,  and  the  bibliography,  while  not  attempting  to  be  exhaustive, 
will  be  ampler  than  has  hitherto  appeared  in  any  British  work ;  the 
records  of  localities  for  all  but  common  species  will  also  be  numerous, 
the  mark  !  after  any  of  these  indicates  that  the  specimen  has  been 
examined,  and  !  !  that  it  is  also  in  the  Author's  herbarium. 

In  the  nomenclature,  the  oldest  published  name  has  been  adopted 
when  there  were  no  sound  reasons  to  the  contrary,  and  it  is  greatly  to 
be  deplored  that  so  little  attention  has  been  paid  to  the  laws  drawn  up 
for  our  guidance,  for  an  author  is  not  at  liberty  to  change  a  specific  name 
on  transferring  it  to  a  new  genus,  nor  to  supersede  by  a  new  name,  one 
previously  published,  even  by  himself. 

The  term  peristome  is  restricted  to  the  outer  or  parietal  series  of 
appendages,  when  this  organ  is  double,  the  inner,  proceeding  from  the 
spore-sac,  being  distinguished  as  the  endostome,  and  the  adjective  termination 
to  specific  names  in  honour  of  individuals  is  also  altered  to  the  genitive 
of  the  noun,  as  Brownii  for  Brownianum  (see  Lindley's  Introduction  to 
Botany,  2  ed.  p.  458). 

The  arrangement  of  the  families  and  genera  is  principally  in  accord- 
ance with  Professor  Lindberg's  admirable  program,  "  Utkast  till  en  natiirlig 
gruppering  af  Europas  lladmossor  med  toppsittande  frukt "  (1878),  the  most 
natural  which  has  yet  appeared  ;  in  this  the  cleistocarpous  mosses — as 
in  Mr.  Mitten's  system — are  regarded  as  imperfectly  developed  forms  of 
various  stegocarpous  families,  with  which  they  agree  in  everything  but 
a  separable  operculum,  and  the  genera  are  framed  on  a  broader  and  more 
rational  basis,  just  as  our  best  botanists  now  deal  with  phaenogamous 
plants. 


Professor  Lindberg's  terms  for  the  position  of  the  reproductive  organs 
are  also  adopted,  as  being  more  precise  than  those  ordinarily  used.  Kis 
definition  of  these  is  as  follows : — 

A.    GAMOECIA  MONOICUM. 
( <?  and  ?  on  the  same  plant.) 

1.  Synoicous  =  S  and    ?  mixed   together   in   the    same   inflorescence 

(Perichatinm}.     Ex.  Bryum  bimnm. 

2.  Paroicous  =    3    and    ?    in   the  same  inflorescence,    $    naked   and 

axillary   to   the    lower   bracts,    ?     covered    by    the    uppermost 
bracts.     Ex.  Bryum  ntttans. 

3.  Autoicous  =  $   and    ?  each  in  a  separate  inflorescence  (andrcecitim 

and  perichatium}.     Ex.  By.  uliginosum. 

4.  Heteroicous  =  synoicous  +  autoicous.      Ex.  Br.  pendulum. 

9 

B.     GAM.  DIOICUM. 
(<?  and   ?  on  different  plants.) 

5.  Dioicous  =  androecium  and   perichaetium  on  different  plants.     Ex. 

BY.  capillave. 

C.     GAM.  POLYOICUM. 
(<?  and  ?  both  on  the  same  plant  and  on  different  plants). 

6.  Polyoicous,  under  three  forms: — 

a.  Synoicous     +  dioicous.     Ex.  Br.  cnidum. 

b.  Autoicous     +  dioicous.     Ex.  Dicranum  scoparitmi. 

c.  Heteroicous  +  dioicous.     Ex.  Br.  pallescens. 

To  the  same  kind  friend  I  am  indebted  for  many  suggestions  and 
specimens,  and  also  to  various  correspondents  at  home,  to  whom— as  also 
to  Mr.  Baker,  at  Kew,  and  to  Mr.  Carruthers  at  the  British  Museum, 
for  greatly  facilitating  my  studies,  and  to  Mr.  Blair,  F.L.S.,  for  his  careful 
reproduction  of  the  drawings— I  here  offer  my  warmest  thanks,  and  trust 
that  by  their  valuable  assistance  the  work  will  prove  acceptable  to  all 
students  in  Bryology. 


vii. 


GLOSSARY. 


Acaulis,  stemless. 

Accrescent,  increasing  in  size. 

Acicular,  needle  shaped. 

Acinaciform,  scimitar  shaped. 

Acrocarpous,  fruit  terminating  the  stem  or  axis. 

Acrogenous,  increasing  at  apex. 

Acuminate,  tapering  gradually  to  a  point. 

Acuminulate,  with  a  diminutive  taper  point. 

Acutate,  slightly  pointed. 

Acute,  terminating  at  once  in  a  point. 

Adnate,  joined  together,  adhering  to  the  face  of 

anything. 

Adventitious,  in  an  unusual  position. 
Mruginose,  verdigris  green. 
Agglomerated,  clustered  together. 
Aggregate,  crowded. 
Ala,  a  wing. 

Alar  cells,  those  at  the  basal  angle  of  a  leaf. 
Albescens,  albicans,  albidus,  whitish. 
Alternate,  one  after  another,  but  not  opposite. 
Amentula,  the  catkins  of  male  inflorescence  in 

Sphagnum. 

Amorphous,  without  definite  form. 
Amplexicaul,  clasping  the  stem. 
Andrcecium,  the  male  inflorescence. 
Androgynous,  male  and  female  organs  on  the 

same  receptacle. 

Annotinous,  having  annual  shoots. 
Annulus,  a  ring  of  vesicular  cells  between  the 

lid  and  mouth  of  capsule. 
Antheridia,  the  male  reproductive  organs. 
Antherozoids,  the  fertilizing    elements  in   the 

antheridia. 
Anthoid,  like  a  flower,  as  the  male  inflorescence 

in  Polytrichum. 
Anticus,  inward. 
Antidromous,    applied    to    the    attachment    of 

leaves    when    the    spirals    run    in    opposite 

directions. 

Apical,  belonging  to  the  apex  or  point. 
Apiculus,  an  abrupt  very  short  point  continued 

from  the  lamina. 
Apiculate,  having  an  apiculus. 
Apophysis,  more  correctly  hypophysis. 
Appendiculate ,  having  appendages  or  additional 

parts. 

Appressed,  applied  closely  to  the  stem. 
Archegonia,  the  female  organs  or  rudimentary 

fruit. 

Arcuate,  bent  like  a  bow. 
Areolation,  the  network  formed  by  the  outline 

of  cells. 

Aristate,  awned,  ending  in  a  small  bristly  point. 
Articulated,  jointed. 
Ascending,  directed  upward. 
Asperulous,  slightly  rough  with  little  points. 
Assurgent,  ascending  upwards. 
Astomous,  without  a  mouth. 
Asymmetric,  irregular  in  outline. 
Attenuate,  narrowing  gradually. 
Auriculatc,  having  auricles  or  small   lobes  at 

base. 
Autoicous,  male   and  female   inflorescence    on 

the  same  plant ;  3  forms : 

1.  Cladautoicous,  the  male  on  a  proper  branch. 

2.  Gonioautoicous,     the     male     budlike   and 
axillary  on  a  female  branch. 

3.  Rhizautoicous,   male     branch   very   short, 
cohering  to  the  female  by  the  rhizome. 

Axillary,  in  the  axil  or  basal  hollow  of  a  leaf  or 
branch. 

Badious,  dull  brown. 

Basal  or  basilar,  at  the  base  or  lowest  part. 


Bifarious,  in  two  ranks. 

Bigeminate,  in  two  pairs. 

Binate,  in  pairs. 

Bipartite,  divided  nearly  to  base  into  two  parts. 

Bracts,   the  leaves  enclosing  the  reproductive 

organs. 
Byssaceous,  divided  into  fine  threads  like  wool. 

Caducous,  soon  falling  off. 

Ccesious,  glaucous  green. 

Ccespitose,  forming  matted  tufts. 

Ccespitulose,  in  very  small  tufts. 

Calcicolous,  growing  on  limestone. 

Callose,  hard  and  thick. 

Calyptra,  the  membranous  veil  covering  the  lid. 

Campanulate,  bell  shaped. 

Canaliculate,  channelled. 

Cancscent,  rather  hoary. 

Capillary,  hair-like. 

Capitate,  forming  a  head. 

Capituliform,  shaped  like  a  capitulum  or  round 

head. 

Carinate,  keeled. 
Carneous,  flesh  coloured. 
Carnosc,  fleshy. 
Cartilaginous,  hard  and  tough. 
Castaneous,  chesnut  coloured. 
Catenulate,  chain-like. 
Catiline,  belonging  to  the  stem. 
Ccrnuous,  drooping,  inclining  a  little. 
Cervine,  dark  tawny. 
Chartaceous,  papery. 

Chlorophyl,  the  green  colouring  matter  of  leaves. 
Cilia,  hair-like  processes. 
Ciliate,  fringed  with  cilia. 
Cinereous,  ashy  grey. 
Circinate,  bent  circularly. 
Cirrhate,  curled. 
Cirrhose,  with  a  wavy  hair-point. 
Cladocarpous,  the   fruit  terminating    a    lateral 

shoot. 

Clavate,  club  shaped. 

Cleistocarpous,  the  capsule  not  opening  by  a  lid. 
Coarctate,  narrowed,  squeezed  up. 
Cochleariform,  round  and  concave  like  a  spoon. 
Collum,  the  neck  or  tapering  base  of  the  capsule. 
Columella,  the  central  pillar  in  the  capsule. 
Coma,  the  leaves  or  branches  which  form  the 

crown  of  the  stem. 
Comose,  ending  in  hairs. 
Complanate,  flattened. 
Complicate,  folded  together. 
Concave,  hollow. 

Concolorous,  of  one  uniform  colour. 
Conduplicate,  folded  face  to  face. 
Confertus,  crowded  together. 
Confervoid,  formed  of  fine  threads. 
Confluent,  running  together. 
Congested,  heaped  together. 
Connate,  joined  together. 
Connivent,  meeting  in  one  point. 
Conoid,  like  a  cone. 
Constricted,  suddenly  narrowed. 
Continuous,  uninterrupted. 
Contorted,  twisted  like  a  rope. 
Convolute,  rolled  up. 
Cordate,  heart  shaped. 
Coriaceous,  leathery. 
Corneous,  horny. 

Corniculate,  with  a  horn-like  appendage. 
Cortical,  belonging  to  the  bark. 
Costate,  having  a  nerve. 
Crenate,  having  convex  teeth. 
Crenulate,  minutely  crenate. 


viii. 


Cribrose,  perforated  like  a  sieve. 
Crinitus  tipped  with  long,  weak  hairs. 
Crisped;  crhpate,  frizzled,  curled  and  twisted  in 

ted,  or  having  an  elevated  notched 


ridge. 

Croceus,  orange-yellow. 
Cruciate,  arranged  like  a  cross. 

C«S«Sooded,the  apex  curved  inward  like 

a  slipper. 

Cultriform,  knife  shaped. 
Cnncate,  wedge  shaped.  _ 

Cuspidate,  tapering  gradually  into  a  rigid  point. 
Cuticular,  belonging  to  the  cuticle  or  outer  skin. 
Cyathiform,  cup  shaped. 
Cycle,  the  turn  of  a  spiral  in  leaf  order. 
Cygneous,  curved  like  a  swan's  neck. 
Cymbiform,  boat  shaped. 
Dcalbatus,  whitened. 
Decimate,  descending  in  an  arched  form. 
Decumbent,  reclining  on  the  ground  and  rising 

D^rrent,  appHed  to  leaves  when  the  lamina 

runs  down  the  stem  below  the  point  of  at. 

tachment.  , 

Deflexed,  bent  downward  through   the  whole 

length. 

Dehiscence,  mode  of  bursting. 
Deltoid,  triangular. 
Dendroid,  tree-like. 
Dentate,  toothed,  having  sharp  teeth  with  con- 

cave  edges. 

Denticulate,  minutely  toothed. 
Denudate,  bared  of  leaves. 
Deopcrctilate,  freed  from  the  lid. 
Depauperate,  starved  or  imperfectly  developed. 
Dependent,  hanging  down. 
Depressed,  flattened  horizontally. 
Descending,  directed  gradually  downward. 
Diaphanous,  transparent. 
Diaphragm,  a  partition. 
Dichotomous,  forked,  divisions  in  pairs. 
Diffuse,  spreading  widely. 
Digitate,  divided  like  fingers. 
Dimidiate,  split  on  one  side. 
Dimorphous,  of  two  forms. 
Dioicous,  male   and  female  infl.  on    separate 

plants. 

Diplo,  in  comp.  double. 
Discoid,  like  a  flat  plate. 

Dispositio,  arrangement  of  leaves  in  spirals  on 
the  stem,  e.g.  disp.  %  means  that  three  com- 
plete  turns  will  pass  through  8  leaves. 

Distichous,  in  two  opposite  rows. 

Divaricate,  straggling,  spreading  widely  apart. 

Divisural  line,  the  line  down  the  teeth  of  a 
peristome,  through  which  they  split. 

Divergent,  spreading  outward  from  the  centre. 

Dorsal,  on  the  back  or  posterior. 

Echinate,  with  rigid  bristles. 

Echlorophyllose,  without  chlorophyl. 

Ecostate,  without  a  nerve. 

Edentate,  without  teeth. 

Elatcrs,  spiral  threads  with  the  spores  in 
Hepaticae. 

Elliptic,  long  oval,  equally  rounded  at  both  ends. 

Emarginate,  notched  at  end. 

Emersed,  protruding  upward. 

Endostome,  the  internal  peristome. 

Endothecium,  endothecal  membrane,  the  internal 
lining  of  the  capsule. 

Enervis,  without  a  nerve. 

Ensiform,  sword  shaped. 

Entire,  free  from  any  marginal  division. 

Epidermis,  the  cuticular  or  outer  layer  of  cells. 

Epiphragm,  the  dilated  top  of  the  columella  in 
the  Polytrichace*. 


Efiifihvllous,  growing  on  leaves. 
Ffjual  the  two  sides  symmetric. 
Eqldtant^m  two  rows,  with  the  bases  sheathing 

those  above. 

Erase,  irregularly  notched  as  if  gnawed. 
Exannulate,  without  an  annulus. 
Exasperate,  roughened. 
Excttrrent,  running  out  beyond  the  lamina. 
Exospore,  the  investing  cell  of  the  spore. 
Exostome,  the  outer  peristome. 
Exothecium,  the  outer  membrane  of  the  capsule. 
Exsertcd,  elevated  above  the  surrounding  parts. 

Falcate,  sickle  shaped. 

Fascicle,   a  bunch  of  leaves   on   a  very   short 

branch. 

Fasciculate,  collected  in  small  bundles. 
Fastigiate,  all  the  branches  reaching  an  equal 

height. 

Fenestrated,  perforated. 
Fertile,  bearing  fruit. 

fid,  in  comp:  cleft. 

FibrillcB,  fine  threads. 

Filiform,  thread-like. 

Fimbriate,  fringed  with  processes. 

Fissile,  tending  to  split. 

Flabelliform,  fan  shaped. 

Flaccid,  flabby. 

Flagelliform,  like  the  thong  of  a  whip. 

Flavescent,  becoming  yellow. 

Flexuose,  bending  inward  and  outward. 

Foramen,  a  small  hole. 

Forcipate,  curved  in  like  nippers. 

Fornicate,  arched. 

Foveolate,  pitted. 

Fugacious,  disappearing  quickly. 

Fulvous,  tawny. 

Funiform,  like  a  rope. 

Furcate,  forked. 

Furfuraceous,  scurfy  with  little  scales. 

Fuscescent,  tending  to  fuscous. 

Fuscotts,  brown  tinged  with  blackish. 

Fusiform,  spindle  shaped. 

Gamopkyllous,  having  united  leaves. 

Geminate,  in  pairs. 

Gcmmaceous,  like  a  small  bud. 

Gemma,  budlike  bodies  capable   of  becoming 

plants. 

Geniculate,  bent  like  a  knee. 
Gibbous,  very  convex  or  tumid. 
Glabrous,  smooth. 
Glaucescent,  faintly  glaucous. 
Glaucous,  covered  with  bluish  white  bloom. 
Gonidia,  cells  filled  with  green  granules. 
Granulated,  rough  on  the  surface, 
Gregarious,  growing  associated  but  not  matted 

together. 

Gymnostomous,  without  a  peristome. 
Gyncecium,  the  female  inflorescence. 
Gyrate,  circinate. 

Habit,  general  aspect  of  a  plant. 

Habitat,  situation  where  a  plant  grows. 

Hamate,  hamulose,  curved  like  a  hook. 

Hastate,  halbert  shaped. 

Helicoid,  twisted  spirally. 

Heteromallous,  the  leaves  or  branches  turned  in 

different  directions. 
Heter amorphous,  of  different  forms. 
Hirtus,  covered  with  weak  hairs. 
'Hispid,  covered  with  rigid  hairs. 
Histology,  the  study  of  tissues. 
Homodromous,  when  the  leaf  spirals  run  in  a 

uniform  direction. 
Homomallous,  the  leaves  or  branches  turned  to 

one  side. 

Homomorphous,  of  like  form. 
Hyaline,  clear  as  glass. 


IX. 


Hygromctric,  moving  by  influence  of  moisture, 

applied  to  the  setae  or  teeth  of  peristome. 
Hypogynous,  below  the  female. 
Typophysis,  an  inflated  part  under  the  capsule. 


Hy 
Hv 


Imbricated,  overlapping  like  tiles. 

Immarginate,  not  margined. 

Immersed,  covered  by  the  surrounding  parts. 

Incanus,  hoary. 

Included,  not  extending  beyond  the  surrounding 

organs. 

Incrassate,  thickened  by  internal  deposit. 
Incumbent,  lying  upon. 
Indthisccnt,  not  opening  spontaneously. 
Indumentum,  clothing  or  covering. 
Inflcxed,  bent  inward. 

Innovation,  an  annual  shoot  or  extension  of  stem. 
Insertion,  mode  of  attachment. 
Integerrimus,  quite  entire. 
Intcrnodes,  spaces  between  the  joints. 
Involute,  rolled  inward. 
Irregular,  unsymmetric. 

?ugci,  pairs  of  opposite  leaves. 
ulaceous,  smooth  slender  and  cylindric. 

Lacinice,  small  shreds. 

Laciniate,  cut  or  slashed. 

Lacunce,  hollows. 

Lcete-virens,  bright  green. 

Lcevigatus,  polished. 

Lamella,  small  plates. 

Lamina,  the  expansion  of  a  leaf  exclusive  of 

nerve. 
Lanceolate,  narrowly  elliptic  and   tapering   to 

each  end. 

Lateral,  attached  to  the  side. 
Lamtginose,  woolly. 
Lenticular,  compressed   like   a   double   convex 

lens. 
Leptodermous,  thin  coated,  applied  to  capsules 

when  soft  and  pliable. 
Ligulate,  strap  shaped. 

Limbatus,  bordered  by  a  part  of  another  colour. 
Linear,  narrow,  with  the  margins  parallel. 
Ungulate,  tongue  shaped. 
Loricate,  equally  narrow  throughout. 
Lumen,  the  internal  space  or  cavity  of  a  cell. 
Lunulate,  crescent  shaped. 
Luridus,  dirty  brown. 
Lutescent,  pale  yellow. 

Mammillar,  hemispherical    with   a    projecting 

papilla. 

Marginal,  at  the  edge. 
Marginatus,  having  a  border  of  cells  different 

in  form  or  colour. 
Median,  in  the  middle. 
Membranaceous,  thin  and  semi-transparent. 
Mitriform,  torn  equally  at  base. 
Moniliform,  like  a  necklace  of  beads. 
Monoicous,  male  and  female  infl.  separate    but 

on  the  same  plant. 
Mucro,  a  short,  abrupt  point  continued  from  the 

nerve. 

Mucronate,  provided  with  a  mucro. 
Mucronulate,  with  a  very  small  mucro. 
Multijugous,  having  many  pairs  of  leaves. 
Muricate,  rough  with  sharp  prominences. 
Muticous,  pointless. 

Naked,  without  any  appendages. 
Navicular,  boat  shaped. 
Neck,  see  collum. 
Nerve,  the  midrib  of  a  leaf. 
Nidulant,  nestling  loosely. 
Nitidus,  smooth  and  polished. 
Nodose,  knobbed. 

Nodulose,  thickened  into  little  knobs. 
Nutant,  nodding,  hanging  with  the  apex  down- 
wards. 


Ob ,  in  comp.    inversely,    as  obovate,  in. 

versely  ovate. 
Oblong,  elliptic,  obtuse  at  each  end,  with  the 

longitudinal  diameter  3 — 4  times  the  trans. 

verse. 

Obsolete,  scarcely  apparent. 
Obtuse,  terminating  gradually  in  a  rounded  end. 
Obtusiusculus,  rather  obtuse. 
Ochraceous,  brov^ish  yellow. 
Ochrea,  a  thin  sheath  round  the  seta,  terminating 

the  vaginula. 
oid  or oides,  in  comp.  like,  as  mnioid, 

like  the  genus  Mnium. 

Oosphere,  the  central  cell  of  the  archegonium. 
Operculum,  the  lid  which  closes  the  capsule. 
Orbicular,  circular. 

Oval,  elliptic  and  about  twice  as  long  as  broad. 
Ovate,  elliptic  with  the  lower  end  broader. 

Pachydermous,    thick    coated,   applied    to    the 

walls  of  capsules  or  to  cells  when  firm  and 

resisting. 

Pagina,  the  expanded  surface  of  the  leaf. 
Pallescent,  palish. 
Palmate,  5-lobed  from  a  centre. 
Pandurate  or  panduriform,-  fiddle  shaped,  obo- 
vate with  a  sinus  at  each  side. 
Papilla,  small  rounded  prominences. 
Paraphylla,  small   foliaceous   organs   between 

the  leaves,  sometimes  much  cut  or  branched. 
Paraphyses,  succulent  jointed  threads  growing 

with  the  reproductive  organs. 
Parenchymatous,  cells  with  transverse  ends. 
Parietal,  attached  to  the  wall. 
Paroicous,    g    and     J     in   the  same   infl.    ^ 

naked  in  the  axils  of  lower  bracts. 
Patent,  spreading  at  an  angle  of  26° — 45° 
Patulous,  „  „  46° — 90° 

Pectinate,  comb-like. 
Peduncle  or  pedicel,  the  fruit  stalk. 
Penicillate,  like  a  hair  pencil. 
Percurrent,  running  through  the  entire  length. 
Periandra,  the  bracts  of  male  inflorescence. 
Pericarp,  the  wall  of  the  capsule. 
Perichcetium,  the  involucre  surrounding  the  base 

of  the  fruit   stalk,  the  separate   leaves   are 

perichaetial  bracts. 

Perigonium,  the  involucre  of  male  inflorescence. 
Perigynium,  the  involucre  of  female  in- 

florescence. 

Peristome,  the  teeth  round  the  mouth  of  capsule. 
Persistent,  remaining  a  long  time. 
Phyllotaxis,  the  order  of  arrangement  of  leaves. 
Piliferous,  ending  in  a  fine  weak  point  or  hair. 
Pinnate,  having  branches  on  two  opposite  sides, 
Pistillidia,  same  as  archegonia. 
Plane,  flat. 
Pleurocarpous,  producing  fruit  from  the  side  of 

stem. 

Plicate,  plaited. 
Plumose,  feathery. 
Polymorphous,  of  many  form$. 
Pore,  a  small  aperture. 
Posticus,  outward  or  behind. 
Predominant,  very  conspicuous. 
Primordial  utricle,   the    first    layer    deposited 

within  the  cell. 
Processes,  divisions. 
Procumbent,  spreading  on  the  ground. 
Proembryo,  the  first  growth  from  the  spore. 
Proliferous,  bearing  an  excessive  development 

of  parts. 
Prosenchymatous,  composed  of  cells  with  pointed 

ends. 

ProthaUium,  an  expanded  frondiform  proembryo. 
Protonema,  a  branched  filamentous  proembryo. 
Protoplasm,  the  formative  material  in  living 

cells. 


X. 


Prulnose,  with  minute  elevations  as  if  frosted. 

Pscudannulus,  an  apparent  annulus  of  non- 
vesicular  cells. 

Pseudopodium,  an  altered  innovation,  leafless, 
and  often  gemmiferous  at  apex. 

Ptigioniform,  dagger  shaped. 

Pulvinate,  like  a  cushion. 

Punctate,  with  opake  dots. 

Pungent,  ending  gradually  in  a  hard  sharp 
point. 

Pyriform,  pear  shaped. 

Quadrate,  square. 

Rachis,  the  main  axis. 

Radical,  at  the  root. 

Radicles,  root  fibrils. 

Radiculose,  covered  with  radicles. 

Ramenta,  thin  membranous  scales. 

Ramulus,  a  small  branch. 

Receptacle,  the  apex  of  stem  in  which  the  repro- 

ductive  organs  are  fixed. 
Reclinate,  bending  back. 
Recurved,  curved  back. 
Reflcxed,  suddenly  bent  back. 
Regular,  symmetrical. 
Repand,  slightly  sinuous. 
Repent,  creeping. 
Resupinate,  inverted  in  position  by  twisting  of 

the  stalk. 

Reticulate,  netted  with  projecting  lines. 
Refuse,  round  at  end  with  the  centre  depressed. 
Revolute,  rolled  back. 
Rhizina,  hair-like  radicles  on  the    stem,  also 

termed  adventitious  radicles. 
Rhizome,  a  creeping  subterranean  stem. 
Rimose,  gaping  in  a  chink. 
Rostellate,  with  a  little  short  beak. 
Rostrate,  beaked,  terminating  gradually  in   a 

long  hard  point. 

Rosulate,  arranged  like  a  rosette. 
Rubiginose,  rusty  red. 
Rufescent,  reddish  brown. 
Rugose,  wrinkled. 
Rugulose,  slightly  wrinkled. 

Sanguineous,  blood  colour, 
Saxicolous,  growing  on  stones. 
Scalariform,  ladder.like. 
Scalpelliform,  like  the  blade  of  a  penknife. 
Scabrous,  rough  with  minute  warts. 
Scaberulus,  slightly  scabrous. 
Scariose,  dry  thin  and  semi-transparent. 
Secund,  turned  to  one  side. 
Semiamplexicaul,  half  clasping  the  stem. 
Semiterete,  half  cylindric. 
Septate,  having  partitions. 

Sericeous,  with  a  silky  gloss. 

Serrate,  with  sharp  straight-edged  teeth  point. 

ing  forward. 

Serrulate,  with  small  serrations. 
Sessile,  without  evident  pedicel. 
Seta,  the  fruit-stalk. 
Setaceous,  bristle  shaped. 
Sigmoid,  curved  like  the  letter  S. 
Sinuose   or    sinuate,   having  the   margin   with 

alternate  concavities  and  convexities. 
Spadiceus,  a  clear  brown  colour. 
Spathulate,  from  a  lineal  base  gradually  obovate. 
Spinulose,  with  minute  prickles. 
Sporangium,  the  sac  holding  the  spores. 
Spores,  seeds. 
Sporogoniutn,  the  capsule. 
Squamose,  scaly. 


Squarrosc,  spreading  out  at  right  angles. 

Stegocarpous,  the  capsule  having  a  lid. 

Stellate,  radiating  like  a  star. 

Stipitate,  attached  to  a  stipes  or  foot-stalk. 

Stolons,  horizontal  or  descending  shoots  from 
the  base  of  stem,  with  minute  leaves. 

Stomata,  air  pores  in  the  wall  of  capsule. 

Stramincus,  straw  coloured. 

Striate,  marked  with  stride  or  slight  furrows. 

Strigose,  covered  with  sharp  stiff  hairs,  stiff 
and  pointed. 

Strumose,  wich  a  swelling  on  one  side  at  base. 

Stylidium,  the  upper  end  of  the  archegonium. 

Sub ,  in  comp.  somewhat,  as  subacute 

rather  pointed. 

Subulate,  awl  shaped. 

Sulcate,  furrowed  with  longitudinal  channels. 

Surculus,  a  leafy  upright  shoot  from  the  root. 

Suture,  line  of  junction  of  two  parts. 

Synoicous,  antheridia  and  archegonia  in  one  in- 
florescence. 

Systylius,  the  lid  continuing  fixed  to  the 
columella,  and  thus  elevated  above  the  cap- 
sule when  dry. 

Terete,  cylindric  and  tapering. 

Teretiusculus,  very  slightly  terete. 

Terminal,  at  the  end. 

Theca,  the  capsule. 

Tomentose,  covered  with  tomentum  or  woolly 

fibrils. 

Tortuose,  irregularly  bending  and  turning. 
Trabeculate,  with  transverse  bars  on  the  teeth 

of  peristome. 
Triquetrous,  triangular. 
Truncate,  cut  off  abruptly. 
Tuberculate,  covered  with  minute  knobs. 
Turgid,  slightly  swollen. 
Turbinate,  top  shaped. 
Tympanum,  see  epiphragm. 

Umbonate,  round  with  a  projecting  point  in 
the  centre. 

Umbraculiform,  umbrella  shaped. 

Uncinate,  hooked,  curved  back  at  point. 

Undulate,  with  an  alternately  convex  and  con- 
cave margin. 

Unequal,  the  two  sides  not  symmetric. 

Unguiculate,  ending  in  a  point  like  a  claw. 

Urceolate,  pitcher  shaped. 

Utricles,  oblong,  somewhat  inflated  cells  in 
sphagnum. 

Vaginant,  sheathing. 

Vaginula,  a  sheath  round  the  base  of  the  seta 

where  it  joins  the  receptacle. 
Vaguely,  without  any  definite  direction. 
Valves,    parts    which    separate    in    a  definite 

manner. 

Vascular,  having  vessels. 
Veil,  the  calyptra. 
Ventral,  in  front  or  anterior. 
Ventricosc,  bulging  on  one  side. 
Vermicular,  thick  cylindric,  and  bent  at  certain 

points. 

Verrucose,  covered  with  wart.like  prominences. 
Vesicular,  inflated  like  a  bladder. 
Villi,  branched  processes  on  the  stem. 
Villose,  covered  with  villi. 
Vittate,  striped. 

cT  ,  male.      ?  ,  female. 

,  between,  as  3 — 6,  between  3  and  6. 

!,  examined  by  the  author. 
!  !,  in  the  author's  herbarium, 
p.p.,  partly. 


FAMILIES     OF     ACROCARPOUS     MOSSES. 


SECT.  i.        SCHISTOCARPI. 


SECT.  2.        STEGOCARPI. 
ANARTHRODONTEI. 

2.  BUXBAUMIACE^E. 

3.  GEORGIACE.E. 

4.  POLYTRICHACE^:. 
ARTHRODONTEI. 


5.  FISSIDENTACE^i. 
tt       Eleutherophyllete. 

6.  LEUCOBRYACE^:. 

7.  DICRANACE^:. 

8.  GRIMMIACE^E. 

9.  TORTULACE/H. 

10.  WEBERACE.E. 

11.  SCHISTOSTEGACE^E. 

12.  SPLACHNACE^:. 

13.  OEDIPODIACE^:. 

14.  FUNARIACE^E. 

15.  BRYACE.^. 

16.  BARTRAMIACE^K. 

17.  MEESEACE^E. 

18.  MNIACE^E. 


AND 


ACE^E 


MAY  IST,  1880. 


ANDRE^A.    EHRH. 

1.  A.  petrophila.     EHRH. 

2.  —  alpina.     (DILL.)  SM. 
8.     —  crassinervis.     BRUCH. 

4.  —  Rothii.     WEB.  MOHR. 

5.  —  nivalis.    HOOK. 


MUSCI     ACROCARPI. 

Fruit  terminating  the  axis  of  stem,  or  becoming  apparently  lateral 
through  being  pushed  aside  by  a  new  shoot. 


Sect.  i.     SCHISTOCARPL 
Capsule  splitting  vertically  into  valves  united  at  base  and  apex. 

Fam.  i.     ANDRE^ACE^E. 

Mosses  with  the  habit  of  the  genus  Grimmia,  always  growing  on 
quartzose  rocks,  attached  by  a  few  radicles,  and  forming  small,  dense, 
very  fragile,  fuscous,  rufous  or  black  tufts.  Stems  rigid,  slender, 
dichotomous  or  fasciculate.  Leaves  in  5  or  8  ranks,  patent,  secund 
or  falcato-secund ;  smooth  or  papillose,  nerved  or  nerveless,  ovate, 
lanceolate  or  subulate ;  the  cells  minute,  incrassate,  rectangular  at 
base,  punctiform  or  angular  above. 

Fruit  terminal,  solitary,  enclosed  in  the  large  perichaetium  up  to 
maturity,  then  exserted  on  the  elongated  vaginula.  Capsule  ovate- 
oblong,  without  operculum,  splitting  into  4,  or  rarely  6 — 8  valves, 
united  at  apex,  closed  when  moist,  gaping  widely  and  depressed  when 
dry ;  the  wall  of  five  cell-strata,  without  a  distinct  sporangial  membrane  ; 
columella  cylindric,  extending  from  base  to  apex.  Calyptra  campanu- 
late,  closely  adhering  to  capsule,  mitriform,  torn  irregularly.  Spores 
smooth.  Male  inflorescence  gemmiform,  terminal,  or  lateral  by  arrest 
of  development. 

The  species  of  Andnaa  were  united  by  the  early  authors  with  Jungev- 
mannia,  but  they  agree  with  the  true  mosses  in  all  points  of  structure,  the 
only  aberrant  character  being  the  valvate  dehiscence  of  the  capsule,  giving 
them  a  superficial  resemblance  to  that  genus  of  Hepatica,  to  which  also  they 
slightly  approximate  in  the  form  of  their  prothallium.  Their  true  place 
appears  to  be  between  the  Sphagnacea  and  frondose  mosses,  since  they 
present  certain  points  of  agreement  with  the  former,  in  the  capsule  being  at 
first  enclosed  in  a  similar  large  saccate  calyptra,  and  then  elevated  on  an 
elongated  pseudopodium,  and  also  in  the  prothallium  partaking  somewhat  of 
the  lobate  form  seen  in  Sphagnum. 

The  plants  entirely  agree  with  the  genus  Grimmia  in  habit,  mode  of 
growth,  and  structure  of  leaves,  but  they  deviate  so  widely  from  it  in  the 
fruit,  that  I  prefer  to  follow  Bridel  in  retaining  them  in  a  separate  section. 
My  friend  Lindberg  places  them  as  the  lowest  family  of  the  acrocarpous 
mosses,  and  next  after  the  Grimmiacete. 


The  Andreaacete  are  entirely  confined  to  granite  or  slate  rocks  and 
boulders,  and  to  mountains,  stony  regions,  or  the  high  latitudes  of  the  arctic 
and  antarctic  zones,  and  this  no  doubt  accounts  for  the  great  uniformity  in 
their  structure  and  habit.  The  pachydermous  nature  of  their  cells  gives  the 
leaves  an  almost  cartilaginous  texture,  and  thus  enables  them  to  resist  the 
pelting  storms  which  harass  the  elevated  districts  they  inhabit,  and  produce 
that  debris  of  their  tissues  and  of  the  adjacent  rocks,  which  always  more  or 
less  infiltrates  the  tufts.  This  thickened  cell  tissue,  combined  with  the  dark 
color,  greatly  obscures  the  definition  of  the  nerve  and  cells  under  the 
microscope,  and  a  preparatory  treatment  with  Liq.  Soda?  or  Potassae  will  be 
found  of  the  greatest  assistance  in  their  examination  ;  by  placing  a  moistened 
branch  in  a  few  drops  of  the  caustic  alkali  on  a  slide,  heating  it  over  a 
spirit  lamp,  and  then  soaking  well  in  clean  water,  the  leaves  become  soft 
and  flaccid,  and  every  cell  clearly  defined. 

The  family  includes  but  a  single  genus  of  about  50  species,  which  may 
be  arranged  in  three  sections. 

1.  Euandreaea.     LINDB.     Marked  by  its  distinct  convolute  perichaetium, 
and  deeply  4-fid  capsule. 

2.  Chasmocalyx.    LINDB.    Without  any  evident  perichaetium,  and  deeply 
4-8  valved   capsule ;     includes  only  A .   nivalis   HOOK,    and   australis 
F.  MUELL. 

3.  Acroschisma.     HOOK.  WILS.     Having  the    capsule  cleft  only  at  the 
upper  end  into  4-8  valves;  comprising  A.  Wilsoni  HOOK,  and  densi- 
folia  MITT. 

The  greatest  number  of  species  is  found  in  the  islands  of  the  antarctic 
regions,  but  a  fair  proportion  is  also  met  with  on  the  elevated  mountains  of 
South  America,  while  Northern  India  and  Australia  also  possess  certain 
endemic  forms  ;  in  Europe  the  Scandinavian  peninsula  is  the  head-quarters 
of  the  family. 

Several  minute  branched  lichens  Ephebe  pubescens,  Leptogium  muscicola,  &c., 
occasionally  infest  the  leaves,  but  in  the  S.  American  A .  arachnoidea  C.  Mull ; 
the  leaves  are  overrun  with  minute  filaments,  truly  produced  by  the  plant 
itself.  For  an  exhaustive  account  of  the  development  and  structure  of  these 
plants,  we  may  refer  to  the  admirable  paper  of  Kiihn  "  Entwickelungsgeschichte 
der  Andreaaceen"  (Leipzic,  1870),  and  an  equally  valuable  one  by  Berggren 
"  Studierofver  Mossornas  byggnadochutveckling"  in  Act.  univ.  Lund.  IV.  n.  12 
(1867) ;  both  of  which  are  illustrated  by  excellent  plates. 

ANDRE^A.     EHKHART. 

Hannov.  Mag.  1778,  101  Stuck,  p.  1601 ;  et  Beitr.  i.  pp.  15  et  180  (1787). 

Acrocarpous  mosses  of  a  reddish,  brown  or  black  color,  growing  in 
small  dense  fragile  tufts.  Capsule  sessile  on  the  elongated  vaginula, 
splitting  into  4— rarely  6  or  8— valves,  united  at  base  and  apex. 
Calyptra  thin,  adherent,  mitriform,  torn  irregularly. 

Dillenius  was  the  first  author  who  recognized  any  species  of  the  present 
genus,  and  he  described  and  figured  two  in  his  Historia  Muscorum,  under 
the  names  «  Ltchenastrum  alpinum  atrorubens  tens,  calycibus  squamosis  "  (A.  alpina), 


and  " L ichenastrtim  alpinum  nigricans,  foliis  capillaceis  reflexis"  (A.  falcata). 
Linnaeus  also  had  two  species  to  which  he  referred  the  Dillenian  mosses, 
and  placed  under  Jungermannia  as  J.  alpina  and  J.  mpestris,  but  he  evidently 
had  no  correct  idea  of  them,  as  the  specimens  in  his  herbarium  belong  as 
regards  the  former  to  A.  petrophila  EHRH.,  and  the  latter  to  A.  obovata  THED. 

The  genus  was  first  established  by  Ehrhart  in  honor  of  his  friend 
J.  G.  R.  Andreas,  an  apothecary  of  Hanover,  and  his  excellent  character  of 
it  stands  as  follows  :  "  Perichaetium  squamosum ;  squama?  lanceolatae,  carinatae, 
imbricatae.  Anthophorum  longitudine  perichaetii.  Calyptra  conica  brevissima. 
Stylopodium  nullum.  Conioecium  oblongum,  subtetragonum,  4  sulcatum. 
Apophysis  turbinata.  Valvulae  4  carinatae,  angulares,  basi  apophysi  apicibus 
conjunctorio  adnatae.  Suturae  laterales  ex  medio  sursum  deorsumque 
versus  dehiscentes.  Conjunctorium  obtusiusculum.  Dissepimentum  nullum. 
Styliscus  cylindricus.  Sporae  subtilissimae." 

Ehrhart  knew  only  one  species  A .  petropltila,  and  confusion  at  once  crept 
in,  for  this  was  universally  regarded  as  identical  with  our  A.  alpina,  due  no 
doubt  to  the  curious  fact,  that  this  common  British  species  is  almost  entirely 
absent  from  the  continent  of  Europe  ;  then  Hedwig  defined  the  4  valves  of 
the  capsule  as  peristomial  teeth  united  to  a  persistent  operculum,  and  the 
confusion  was  complete  when  he  and  Mohr  made  A. petrophila  EHRH.  into  two 
species,  A .  alpina  and  mpestris,  which  they  considered  to  be  synonymous  with 
those  of  Dillenius,  and  in  this  error  were  followed  by  nearly  all  subsequent 
writers  down  to  our  own  day,  until  Thedenius  cleared  matters  up  in  his 
classical  paper,"  Observationes  de  enervibns  Scandinavia  speciebus  generis  Andrew," 
and  Schimper  finally  settled  the  genus  in  his  exquisite  monograph  in  the  last 
part  of  the  Bryologia  Europoea.  It  may  be  noted  that  the  British  authors 
who  possessed  the  true  A .  alpina  still  retained  the  name  mpestris  for  A .  petrophila 
EHRH.,  which  had  been  given  to  that  form  of  it  with  secund  leaves,  the 
var.  homomalla. 

That  Mohr,  however,  was  not  altogether  satisfied  with  his  determi- 
nation is  evident  from  what  he  says  under  A.  mpestris,  HEDW.  ?  (Bot. 
Taschenb,  p.  384)  as  follows  :— "  It  is  not  to  be  denied  that  the  leaves  of 
A .  alpina  and  rupestris  do  not  differ,  except  that  in  the  latter  the  apex  of  the  leaf 
is  laterally  curved,  from  which  the  leaves  become  remarkably  homomallous. 
Hedwig  incorrectly  ascribes  to  A .  alpina,  leaves  smooth  at  back  ;  to  A .  mpestris, 
leaves  muricate  or  papillose  at  back;  both  are  truly  very  lightly  papillose  at 
back  under  a  high  power."  Bridel  was  evidently  of  opinion  that  they  were 
not  distinct,  for  he  states  that  he  considers  these  forms  so  similar  that  they 
can  with  difficulty  be  regarded  as  proper  species.  It  is  also  clear  that 
Hedwig  had  specimens  of  the  true  A.  alpina,  but  failed  to  distinguish  them, 
for  that  species  has  smooth  cells,  but  A .  petrophila  has  them  distinctly  and 
coarsely  papillose.  With  respect  to  this  important  character  of  smoothness 
or  papillosity  of  the  cell  walls,  it  may  be  well  to  refer  to  a  paper  by 
Schliephacke,  "  Ueber  das  genus  Andretea,"  in  Verhandl.  Zool.  Bot.  Gerfsells. 
Wien  XV.,  p.  423  (1865),  where  these  characters  are  contrasted,  both  in  the 
natural  state  and  after  treatment  with  caustic  alkali. 

The  other  European  Andreczas  not  found  in  Britain  are,  A.  papillosa 
LINDB.,  an  excellent  species  from  Spitzbergen  and  Mt.  Tjidtjak,  in  Lapland; 
A.  obovata  THED.,  A.  Hartmani  THED.,  and  A.  Blyttii  SCHIMP.,  all  three 


confined  to  Scandinavia.  I  agree  with  Lindberg  in  regarding  A.  Thedenii 
SCHIMP.,  as  a  var.  of  A.  Hartmani,  and  A.  sparsifolia  ZETTERST.,  as  a  var.  of 
A.petrophila,  very  near  to  alpestris. 


CLAVIS  TO  THE  SPECIES. 
nceolate,  papillose,  entire 
Leaves  obovate-spathulate,  apiculate,  smooth,  serrate  at  basal  margin. 


Leaves  nerveless. 

Leaves  ovato-lanceolate,  papillose,  entire 

petrophila. 

alpina. 


S  "Leaves  oblong  at  base,   subulate,  smooth ;   nerve   toward   apex   without    any 

lamina. 

crassinervis. 

Leaves  ovate  at  base,  lanceolate,  smooth  ;  nerve  flattened,  the  lamina  narrowed 
but  distinct  to  apex. 

Rothn. 

Leaves  oblongo-lanceolate,  papillose,  laxly  areolate ;  nerve  narrow,  the  lamina 
broad  and  distinct  to  apex. 

mvahs. 


Sect.  i.    EUANDRE^EA.     LINDB. 

Leaves  and  perichaetial  bracts  different  in  form,  the  latter  erect  and 
convolute,  nerveless,  or  scarcely  nerved. 

*  Leaves  nerveless. 

i.    A.  PETROPHILA.     Ehrh. 

Autoicous  ;  in  small,  fragile,  olive  green  or  fuscous  tufts.  Leaves 
nerveless,  crowded,  from  an  erect  base,  divergent,  sometimes  secund, 
entire,  papillose  at  back,  ovate  or  ovato-lanceolate,  the  apex  muticous 
and  somewhat  obliquate  ;  areolation  incrassate,  punctiform  and 
orbicular  at  apex,  sinuoso-rectangular  at  base.  Perichsetial  bracts 
large,  convolute.  (T.  IA.) 

Svm.—yungcrmannia  alpina  L.  Sp.  PI.  1135,  n.  22  (1753)  ;  et  2  ed.  ii,  1601  (1763),  p.p.  et  herb. 
WEB.  Spic.  Fl.  Gott.  152,  excl.  syn.  (1778).    RETZ.  Fl.  Scand.  Prod.  221,  excl.  syn.  (1779). 


ROTH  Fl.  Germ,  i,  485  (1788).  .Fl.  Dan.  t.  1002,  f.  i  (1790).  LILJEBL.  Svensk  Fl.  323 
{1792).  SCHRAD.  Spic.  Fl.  Germ.  76  (1794).  HUEB.  Hepat.  Germ.  301,  excl.  syn.  pi. 
(i834)- 

Andr.  petrophila  EHRH.  in  Hann.  Mag.  1784,  9  Stuck,  140;  Beitr.  i,  192  (1787),  excl.  syn. 
et  Dec.  Crypt,  n.  67  (1786).  HOFFM.  Deutsch.  Fl.  ii,  80  (1796).  STURM  Deutsch.  Fl. 
fasc.  2,  3,  f.  b.  C.  D.  (1799).  THEDEN.  in  Nya  Bot.  Not.  1849,  p.  78,  f.  37-44.  HARTM. 
Skand.  Fl.  6  ed.  437  (1854).  ZETTERST.  Mon.  Andr.  Scand.  42  (1855).  SCHIMP.  Bry. 
Eur.  vi,  Mon.  13,  T.  i  (1855)  5  Syn.  Muse.  Eur.  660  (1860)  et  2  ed.  812  (1876).  SULL. 
Moss.  Unit.  St.  13  (1856).  HOOK.  FIL.  Fl.  Tasm.  ii,  161  (1860)  ;  Handb.  N.  Zeal.  Fl. 
400  (1867).  BERK.  Handb.  Br.  M.  309  (1863).  MITT.  Jour.  Lin.  Soc.  xii,  Bot.  628 
(1869).  MILDE  Bry.  Siles.  256  (1869).  DE  NOT.  Epil.  Briol.  Ital.  746  (1869).  HOBK. 
Syn.  Br.  M.  21  (1873). 

A.  petrophila,  a.  alpina  et  ft.  rupestris  WALLROTH  Fl.  Crypt.  Germ.  92,  excl.  syn.  plur. 
(1831). 


A.  rupestris  HEDW.  Sp.  Muse.  47,  T.  7,  f.  2,  excl.  syn.  (1801).  SMITH  Fl.  Brit.  1178,  excl. 
syn.  (1804) ;  Eng.  Bot.  t.  1277,  excl.  syn.  plur.  (1804).  P.  BEAUV.  Prodr.  42  (1805). 
BRID.  Muse.  Rec.  ii,  P.  i,  44  (1806).  WEB.  MOHR.  Bot.  Tasch.  384,  t.  u,  f.  5,  6  (1807). 
HOOK.  Trans.  Lin.  Soc.  X,  391,  T.  31,  f.  2,  excl.  syn.  plur.  (1810).  SCHWAEGR.  Supp.  I, 
P.  i,  42  (1811).  HOOK.  TAY.  Muse.  Br.  2,  t.  8  (1818).  SMITH  Comp.  Fl.  Br.  3  ed.  163 
(1818).  HOOK.  Fl.  Scot.  P.  2, 121  (1821).  GRAY  Nat.  Arr.  Br.  PI.  i,  709,  2  (1821).  BRID. 


Bry.  Un.  ii,  726  (1827).  SPRENG.  Syst.  Veg.  iv,  216  (1827).  SWARTZ  Adnot.  Bot.  181, 
excl.  syn.  L.  et  DILL.  (1829).  HOOK.  Br.  Fl.  ii,  5  (1833).  Fl.  Dan.  Tab.  2125,  f.  2,  excl. 
syn.  plur.  (1834).  MACKAY  Fl.  Hib.  P.  2,  7  (1836).  HARTM.  Skand.  Fl.  3  ed.  315  (1838). 


GAROV.  Bry.  Austr.  exc.  10  (1840).  ANGST.  Disp.  Muse.  23  (1842) ;  et  in  FRIES  Summa 
Veg.  Sc.  97  (1846).  RABENH.  Deutsch.  Krypt.  Fl.  ii,  P.  3,  71  (1848).  C.  MUELL.  Syn. 
Muse,  i,  6,  excl.  syn.  L.  et  DILL.  (1849).  WILS.  Bry.  Brit.  12,  t.  8  (1855). 
A.  alpina  TURN.  Muse.  Hib.  13  (1804).  BRID.  Muse.  Rec.  ii,  P.  1,45  (1806);  et  Mant. 
Muse.  207  (1819).  WEB.  MOHR.  Bot.  Tasch.  383,  t.  n,  £.3,4(1807).  SCHWAEG.  Suppl.  I, 
P.  i,  42  (1811).  VOIT  Muse.  Herbip.  130  (1812).  WAHLEN.  Fl.  Lapp.  306,  excl.  syn. 
L.  DILL,  et  Eng.  Bot.  (1812) ;  Fl.  Carpat.  334,  excl.  syn.  L.  et.  Eng.  Bot.  (1814) ;  et  Fl. 
Upsal.  392  (1820).  SWARTZ  Summ.  Veg.  Scand.  38  (1814).  LILJEBL.  Svensk  Fl.  3  ed. 


569  (1816).  ASPEGREN  Blek.  Fl.  74  (1823).  FRIES  Stirp.  Agr.  Femsjon.  29  (1825). 
BRID.  Bry.  univ.  ii,  728,  p.p.  (1827).  SWARTZ  Adnot.  Bot.  180,  excl.  syn.  L.  et  DILL. 
(1829).  HARTM.  Skand.  Fl.  2  ed.  354  (1832).  WAHLEN.  Fl.  Suec.  2  ed.  ii,  809  (1833). 


DE  NOT.  Syll.  Muse.  n.  480  (1838).     GAROVAGL.  Bry.  Austr.  exc.  10  (1840).     ANGSTR. 

Disp.  Muse.  23  (1842) ;   et  in  FRIES  Summ.  Veg.  Sc.  97  (1846).     RABENH.   Deutsch. 

Krypt.  Fl.  ii,  P.  3,  71  (1848). 
A.  alpina  /3  subsccunda  WAHLEN.  Fl.  Lapp.  306  (1812);  et  Fl.  Suec.  2  ed.  809  (1833). 

SWARTZ  Summ.  Veg.  38  (1814).     LILJEBL.  Sv.  Fl.  3  ed.  569  (1816).     HARTM.  Sk.  Fl. 

380  (1820).     FRIES  Stirp.  Agr.  Femsjon.  29  (1825). 
Jungerm.  rupestris  HUEB.  Hepat.  Germ.  303,  excl.  syn.  plur.  (1834). 

Autoicous ;  rufescent,  olivaceous  or  blackish.  Stems  caespitose, 
£-1  in.  high,  nearly  erect,  simple  or  dichotomous.  Leaves  crowded, 
nerveless,  varying  much  in  form,  direction,  and  texture,  from  an  erect 
base,  suberect  and  laxly  appressed  when  dry,  patent  and  divaricate  when 
moist ;  straight  or  a  little  incurved  at  apex,  often  secund  on  the  young 
surculi ;  ovato  or  oblongo-lanceolate,  muticous  or  with  a  minute  apiculus, 
concave,  generally  obliquate  at  apex  and  hence  slightly  asymmetric,  the 
margin  entire,  subinflexed,  the  point  often  with  a  hyaline  border  and 
crenulate.  Areolation  dense,  sinuoso-linear  at  base,  dot-like  and 
orbicular  at  apex,  the  cells  strongly  and  obtusely  papillose  at  back, 
especially  in  the  upper  part  of  leaf. 

Perichsetium  large,  outer  bracts  imbricated,  inner  convolute,  very 
broad,  oblong,  smooth,  soft,  and   yellowish.     Capsules  small,  pale  at 
base,  rufo-fuscous.     Male  infl.  on  distinct  branches  (cladautoicous) ,  bracts 
three,  very  concave,  broadly  ovate,  pointed ;  antheridia  5-7. 
HAB. — Mountain  rocks  ;  common.  Fr.  6-8. 

A  green  obtuse  leaved  form  on  The  Cobbler,  Arrochar  (George  1879)  !  ! 

It  is  only  in  mountainous  districts  that  this  little  moss  forms  a  con- 
spicuous object  on  the  rocks,  which  are  dotted  over  with  its  beautiful  brown 
or  black  cushions,  so  slightly  attached  at  the  root  that  it  is  but  seldom  good 
herbarium  specimens  can  be  procured.  The  number  of  varieties  quoted 
under  this  species  are  evidence  of  the  varied  aspects  it  presents  to  us,  but 
however  much  the  leaves  may  differ  in  color,  form,  or  direction,  their  cell 
structure  exhibits  great  uniformity,  and  indicates  that  sound  characters  for 
the  distinction  of  species  must  chiefly  be  based  on  this  feature.  The  pale 
color  of  the  base  and  neck  of  the  capsule  in  this  plant  is  very  marked. 


Var.  ft.    Homomalla.     THEDEN. 

Stems  short,  laxly  pulvinate,  olivaceous,  green  above,  fuscous  below. 
Leaves  ovate  or  oblongo-lanceolate,  more  or  less  falcato-secund,  obtuse. 

SYN. — Andr.  rupestris  WEB.  &  MOHR,  SMITH,  HOOK.,  C.  MUELL.  et  plur.  auct.  cit.  sub  forma 

typica. 

Andr.  petrophila  Var.  y.  homomalla  THEDEN.  in  Nya.  Bot.  Not.  1849,  P-  79>  fig-  48-54. 
SCHIMP.  Syn.  Muse.  661,  et  2  ed.  813.  ZETTERST.  Mon.  Andr.  Scand.  43. 

HAB.— Glen  Callater,   Braemar   (Hunt)  !  !      Castel-y-Gwynt,  Carnarvon  at  3000  ft.   (Beckett 
1880)  !  ! 

This  appears  to  be  a  form  rather  than  a  variety,  as  the  secund  dis- 
position of  the  foliage  is  found  more  or  less  developed  in  varieties  differing 
widely  in  other  respects.  The  obtuse,  obliquate  apex  of  the  leaf  and  large 
size  of  the  upper  cells  may  prove  more  characteristic.  It  seems  to  be  only 
sparingly  distributed  both  here  and  on  the  continent. 

Var.  y.    Acuminata.     SCHIMP. 

Plants  more  robust,  olive  green  or  blackish.  Leaves  spreading,  longer 
and  more  acuminate,  with  longer  papillae. 

SYN.— A.petrophila  Var.  ft.  acuminata  SCHIMP.      B.  E.  vi,  Mon.  13,  t.  II,  ft',  Synops.  Muse. 
661,  et  2  ed.  813. 

HAB. — Rocks  on  the  higher  mountains. 

Glen  Callater,  Braemar  (Fergusson  1868)  !  !  Ben  Macdhui  (Hunt  1871)  !  !  Cader  Idris 
(Pearson  1876)  !  !  Strachan,  Kincardine,  and  Rona's  hill,  Shetland  (Sim  1878)  !  ! 
Slack  of  Birnie,  Fourdoun  (Sim)  \  !  Ben  Nevis,  at  4000  ft.  abundant  (George  1879)  !  ! 
Abergynalwyn  (Whitehead  1879)  !  ! 

Closely  allied  to  the  varieties  robusta,  flaccida  and  sylvicola,  and  perhaps 
with  them  only  constituting  one  good  variety  characterized  by  the  taper- 
pointed  leaves. 

Var.  8.    Flaccida.     SCHIMP. 

In  soft,  black  tufts,  with  branched,  flexuose  stems.  Leaves  squarroso- 
patent,  lanceolate,  pointed,  rather  obtuse. 

SYN.— A.  petrophila  Var.  y.  flaccida  SCHIMP.  B.  E.  vi,  Mon.  13,  t.  II,  yj  Syn.  Muse.  661,  et 
2  ed.  813. 

HAB.— Rocks  in  Glen  Callater,  Braemar  (Hunt  1871)  !  !     Canlochan  (Hunt  1868)  !  ! 

This  is  a  more  robust  plant  than  the  Var.  alpestvis,  which  it  somewhat 
resembles  in  the  form  and  direction  of  the  leaves,  but  these  in  the  dry  state 
are  widely  divergent  or  even  subsquarrose,  and  also  of  a  larger  size. 

Var.  e.     Sylvicola.    SCHIMP. 

In  small,  lax  tufts,  short,  slender,  decumbent  at  base.     Leaves  small, 
partly  secund,  rather  distant,  longly  lanceolate-acuminate,  acute. 
SYN.— A.petrophila\M.  c.  sylvicola  SCHIMP.  E.  E.  vi,  Mon.  13,  t.  II,  e;   Syn.  Muse.  661,  et 

HAB.— Ben  Macdhui,  Glen  Callater  and  Loch  Kandor  (Hunt  1871) !  1 


Var.  £.     Gracilis.     SCHIMP. 

Stems  slender,  branched,  rufescent ;  surculi  straight,  elongated  ;  leaves 
more  distant,  suberect,  broadly  oblongo-lanceolate ;  perichaetium  narrow, 
cylindric. 

SYN. — A.  petrophila  Var.  £.  gracilis  SCHIMP.  B.  E.  vi,  Mon.  13,  t.  II,  £;   Syn.  Muse.  661 ;  et 
2  ed.  813. 

HAB. — Elevated  mountain  districts. 

Stye-head  pass,  Borrowdale  (Hunt  1871)  !  !     Cader  Idris  (Pearson  1874)  !  !     Loch.na-Gar, 
Braemar  (Sim  1876)  !  !     Ben  Nevis,  near  summit  (George  1879)  !  ! 

Two  forms  of  this  variety  occur,  one  rufous  brown,  to  which  the 
Braemar  plant  belongs,  the  other,  more  slender  and  of  a  beautiful  rosy 
purple  tint,  represented  by  Mr.  George's  specimens.  The  first  is  identical 
with  Stockholm  specimens  from  Lindberg,  and  readily  distinguished  by  its. 
straight  branches  and  suberect  leaves. 

Var.  •>;.     Alpestris.     THEDEN. 

In  densely  cushioned  black-brown  tufts.  Stems  very  slender,  much 
branched.  Leaves  small,  crowded,  closely  imbricated  when  dry,  obtuse, 
laxly  areolate,  less  distinctly  papillose. 

SYN. — And.  petrophila  Var.  alpcstris  THED.  in  Nya  Bot.  Not.  1849,  p.  79,  fig.  45-47.     HARTM. 
Skand.  Fl.  6  ed.  437.     ZETTERST.  Mon.  Andr.  Scand.  43. 

Andr.  alpina  DE  NOT.  Syll.  Muse.  p.p. 

Andr.  alpcstris  SCHIMP.  Bry.  Eur.  vi,  Mon.  16,  T.  IV.,  Syn.  Muse.  Eur.  662  ;  et  2  ed.  814. 
DE  NOT.  Epil.  Briol.  Ital.  747.     HARTM.  Skand.  Fl.  7  ed.     HOBK.  Syn.  Br.  M.  21. 

HAB. — Wet  rocks  on  the  higher  mountains  of  Scotland  ;  rare. 

Glen  Callater,  Braemar  (Croall  1853)  !  !     Morone,  Braemar  (Hunt  1871)  !  !     Ben  Challum, 
Perthshire  (McKinlay  1866)  !  !     Uam  Mhor,  Perthshire  (McKinlay  1865)  ! 

This  variety  appears  to  stand  midway  between  A.  petrophila  and 
A .  obovata,  but  agrees  entirely  with  the  first  in  the  form  and  areolation  of  the 
leaf,  though  differing  remarkably  in  aspect,  by  its  very  slender,  branching 
stems,  and  smaller,  closely  imbricated  leaves.  None  of  our  specimens  come 
quite  up  to  the  standard  of  the  Scandinavian  plant,  being  thicker  and  more 
stunted  and  thus  as  it  were  intermediate  between  ordinary  A .  petrophila  and 
the  type  of  the  variety  ;  this  is  especially  the  case  with  the  Perthshire 
specimens. 

Var.  £.     Sparsifolia.     (ZETT.)     LINDB. 

In  small,  lax  tufts;  olivaceous  or  rufescent;  stems  very  slender  and 
fragile,  fiexuose,  with  few  branches.  Leaves  small,  distant,  spreading,  the 
uppermost  secund  or  subfalcate,  lanceolate,  gradually  acuminate,  acute,  less 
distinctly  papillose. 

SYN.— Andr.  sparsifolia  ZETTERST.  Mon.  Andr.  Scand.  32.    SCHIMP.  Synops.  665  ;  et  2  ed.  817. 
DE  NOT.  Epil.  Briol.  ital.  746.     HARTM.  Sk.  Fl. 

HAB. — Near  the  summits  of  the  higher  mountains.     Very  rare. 
Summit  of  Ben  More,  Perthshire  (George  1875). 


10 

Although  smaller  in  all  its  parts  than  Norwegian  specimens,  for  which 
I  am  indebted  to  the  kindness  of  Prof.  Lindberg,  the  Scotch  plant  is 
unquestionably  the  same,  and  it  is  equally  certain  that  it  must  take  its  place 
in  the  long  series  of  forms  referable  to  Andr.  petrophila,  of  which  it  is  the  most 
marked  variety,  a  position  we  prefer  to  that  of  establishing  intermediate 
subspecies.  The  areolation  is  also  less  completely  circular  than  in  the  Scandi- 
navian plant,  which,  it  may  be  mentioned,  grows  associated  -with  Andr.  obovata 
and  Hartmani,  two  species  still  desiderata  in  the  British  Flora. 

2.    A.  ALPINA.     (Dill.)     Sm. 

Autoicous ;  tall,  erect,  in  soft,  glossy,  chocolate  brown  tufts. 
Leaves  nerveless,  spathulato-obovate,  subpanduriform,  imbricated  when 
dry,  abruptly  acuminate,  with  an  acute  apex,  smooth,  the  margin 
obtusely  denticulate  at  base ;  perichaetial  bracts  ovate-oblong,  convolute. 

SYN. — Lichenastrnm  alphttim  atrorubens  tercs,  calyclbus  squamosis  DILLEN.  Hist.  Muse.  506, 
n-  39.  t-  73.  f-  39  A-D  (!74J) ;  et  herbar. 

Jungermannia  alpina  L.  Sp.  PI.  1135,  n.  22  (1753) ;  et  2  ed.  ii,  1601,  n.  23  (1763),  p.p.  non 
herbar.  HUDS.  Fl.  Angl.  436,  n.  24  (1762),  et  2  ed.  ii,  517  (1778).  WITHER.  Bot.  Arr. 
Br.  Veg.  ii,  698,  n.  30  (1776).  LIGHTF.  Fl.  Scot,  ii,  787,  n.  22  (1777).  LAICHARD.  Veg. 
Eur.  ii,  657  (1791).  MURRAY  Syst.  Veg.  803  (1798).  HULL  Br.  Fl.  P.  2,  281  (1799). 
DICKS.  Hort.  sice.  fasc.  3,  n.  23. 

Andreaa  alpina  SMITH  Fl.  Brit.  1179,  excl.  syn.  nonnull.  et  Eng.  Bot.  1. 1278  (1804) ;  et  herbar. 
HOOK.  Trans.  Lin.  Soc.  X,  388,  excl.  syn.  plur.  T.  31,  f.  i  (1810).  SMITH  Comp.  Fl.  Br.  3  ed. 
163  (1818).  HOOK.  TAYL.  Muse.  Biit.  i,  t.  8  (1818).  HOOK.  Fl.  Scot.  P.  2,  120  (1821). 
GRAY  Nat.  Arr.  Br.  PI.  i,  709,  i  (1821).  GREV.  ARM.  Mem.  Wern.  Soc.  IV,  t.  7,  f.  1-4 
(1822).  SPRENG.  Syst.  Veg.  iv,  216  (1827).  BRID.  Bry.  univ.  ii,  728,  p.p.  (1827).  HOOK. 
Br.  Fl.  ii,  5,  excl.  syn.  plur.  (1833).  MACKAY  Fl.  Hib.  P.  2,  7  (1836).  C.  MUELL.  Syn. 
Muse,  i,  7  (1849).  THED.  in  Bot.  Not.  1849,  p.  77.  HARTM.  Skand.  Fl.  6  ed.  437  (1854). 
WILS.  Bry.  Brit,  ii,  t.  8  (1855).  ZETTERST.  Mon.  Andr.  Scand.  37  (1855).  SCHIMP. 
Bry.  Eur.  vi,  Mon.  19,  t.  VI  (1855) ;  Syn.  Muse.  666  (1860),  et  2  ed.  818  (1876).  BERK. 
Handb.  Br.  M.  309,  t.  2,  f.  6  (1863).  HOBK.  Syn.  Br.  M.  21  (1873). 

Andr.  rupcstris  Var.  gigantea  SWARTZ  in  Herb.  Turner. 

Autoicous;  in  dense,  blackish-red,  glossy  tufts.  Stems  erect, 
1-3  in.  high,  fastigiate,  much  branched,  filiform  and  naked  at  base. 
Leaves  nerveless,  densely  crowded,  closely  appressed  at  base  when  dry, 
with  the  apices  patent :  erecto-patent  when  moist,  with  the  apices 
straight  or  subincurved,  smooth,  glossy,  obovate,  contracted  a  little 
below  the  middle,  or  from  an  oblong  base,  spathulate,  with  a  short 
acumen  at  apex ;  the  margin  obtusely  serrate  above  the  base,  entire  in 
upper  part.  Areolation  flexuoso-linear  at  base,  minute  and  rounded 
above,  in  parallel  rows. 

Perichcetium  large,  of  6-7  leaves,  bracts  resembling  the  comal 
leaves,  apex  with  a  hyaline  border,  innermost  convolute,  gradually 
acuminate;  capsule  oblong-ovate,  black-brown,  on  a  dark  pseudo- 
podium. 

Male  infl.  obtusely  gemmiform,  paraphyses  very  long,  flexuose, 
clavate,  bracts  broadly  ovate.  (T.  IB.) 


HAB. — Mountain  rocks,  not  uncommon.  Fr.  6-7. 

Very  fine  in  the  Lake  district  as  in  Ennerdale  and  Easdale  (Baker)  I !  Teesdale  (Spruce) ! ! 
Cader  Idris  (Whitehead)  !  !  Llyn-y-Cwm  (Baker)  !  !  Twll-du  (Holmes)  \  \  Scotland— 
Ben  Lomond  and  Ben  Lawers  (Braithwaite)  \  \  Braemar  (Hunt)  \  \  Broad-leaved  form, 
The  Cobbler,  Arrochar  (George  1879)  !  !  Flaccid  dwarf  form,  rocks  in  stream,  Glen 
Croe,  Arrochar  (George  1879)  !  !  Small  form  sent  as  A.  obovata,  Glen  Callater 
(Fergusson  1868)  !  !  Ireland. — Kerry,  Wicklow  and  Galway  (Moore). 

Common  as  this  beautiful  moss  is  with  us,  it  is  utterly  unknown  on  the 
continent,  with  the  exception  of  a  few  stations  in  Norway,  and  has  thus  led 
to  great  confusion  in  the  synonymy  of  the  older  authors.  In  the  Linnean 
herbarium  it  is  represented  by  A .  petrophila,  and  in  Sweden  by  A .  obovata,  a 
species  having  leaves  gradually  lanceolate  in  the  upper  half,  the  basal 
margin  quite  entire,  and  the  apical  cells  much  larger  and  more  angular. 

Var.  /?.     Compacta.     HOOK. 

In  densely  cushioned  tufts  of  a  lurid  blackish  purple  color ;  the  branches 
straight,  equal  and  fastigiate ;  the  leaves  closely  imbricated. 

SYN. — Andr.  alpina  Var.  y  compacta  HOOK,  in  Trans.  Lin.  Soc.  X,  389  (1810).  BRID.  Bry. 
univ.  ii,  730. 

HAB. — Elevated  mountains  in  Scotland  and  Wales. 

Ben  Nevis  (Hooker  and  Borrer  1806) !  On  the  ground,  summit  of  Great  Glyder,  Carnarvon 
(Holmes  and  George  1878)  !  ! 

Var.  y.     Flavicans.     HOOK. 

Stems  elongated,  filiform,  the  leaves  more  distant,  laxly  imbricated, 
yellowish. 

SVN. — Andr.  alpina  Var.  ft.  flavicans  HOOK,  in  Trans.  Lin.  Soc.  X,  389  (1810).  BRID.  Bry. 
univ.  ii,  730. 

HAB. — Scotland,  summit  of  Ben  Nevis  (Hooker  and  Borrer  1806)  ! 

This  marked  variety  has  a  strong  superficial  resemblance  to  A .  Hartmani, 
but  is  readily  distinguished  by  its  more  acute  leaves,  and  much  more  minute 
areolation. 

*  *  Leaves  nerved. 

3.     A.  CRASSINERVIS.     Bruch. 

Autoicous  ;  in  brown-black  tufts.  Leaves  patent  or  falcato-secund, 
from  an  oblong  base,  subulate,  nerve  strong,  flattened  below,  passing 
into  the  terete  sub-papillose  subula.  (T.  Ic.) 

SYN.— A.  crassincrvia  BRUCH  in  Denkschr.  Akad.  Munch.  1828,  p.  279,  n.  i,  t.  10.  RABENH. 
Deutsch.  Krypt.  Fl.  ii,  P.  3,  72  (1848).  C.  MUELL.  Syn.  Muse.  i,io  (1849).  SCHIMP.  Bry. 
Eur.  vi,  Mon.  23,  t.  XI  (1855) ;  Syn.  Muse.  Eur.  668  (1860),  et  2  ed.82o  (1876).  HARTM. 
Skand.  Fl.  SULL.  Moss.  Un.  St.  13  (1856).  LINDB.  in  Journ.  Lin.  Soc.  xi,  460  (1870). 
HOBK.  Syn.  Br.  M.  22  (1873). 

Autoicous  ;  in  rigid  depressed  dark  brown  or  black,  slightly  glossy 
tufts.  Stems  sparingly  subfastigiate-branched  £-f  in.  high,  very  fragile. 
Leaves  crowded,  divaricate,  usually  falcato-secund,  from  an  oblong  very 


concave  base,  subulate,  smooth,  quite  entire  at  margin,  nerve  semiterete, 
faint  at  base,  running  out  into  a  terete  papillose  subula.  Areolation  at 
apex  very  small,  hexagono-quadrangular,  larger  at  base,  rectangular  in 
the  middle,  quadrate  at  margin. 

Perichsetium  convolute,  outer  bracts  oblongo-lanceolate,  erecto- 
patent,  nerveless  at  base,  broadly  nerved  at  apex,  inner  convolute, 
nerveless,  elongate-oblong,  shortly  apiculate.  Capsule  oblong,  brown, 
short-necked.  Male  infl.  an  ovate  bud,  inner  bracts  broadly  ovate, 
nerveless. 
HAS.— Alpine  rocks.  Fr.  7-8. 

Dewerstone  rocks,  Dartmoor  (Holmes)  !  !  Falcon  clints,  Teesdale  (Slater  1853)  !  !  Hebden 
bridge  (Hunt  1864)  !  !  Soccoth  hill,  Arrochar  (McKinlay  1866)  !  !  Grisedale,  Cumber, 
land  (Baker  1867)  !  !  Near  Buttermere  (Hunt)  !  !  Pen-y-Ghent,  Yorks.,and  Tintwistle, 
Cheshire  (Whitehcad  1868)  !  !  Pont  Aberglaslyn  (Wilson  1869)  !  !  Caderldris  (Pearson 
1876)  !  !  Tyn-y-Gros,  Snowdon  (Wild  1877)  !  !  Dumyat,  Stirling  (Croall  1877)  !  ! 
Upper  Lough  Bray,  Ireland  (Moore).-  Abergynalwyn  (Whitehead  1879)  !  ! 

Close  as  this  stands  to  the  next  species  it  may  readily  be  recognized  by 
the  subulate  point,  composed  apparently  of  the  excurrent  nerve,  but  which, 
after  treatment  with  caustic  alkali,  will  be  seen  to  have  a  border  of  a  single 
row  of  cells,  which  observed  in  the  dry  state  by  reflected  light  stand  out  as 
papillae. 

4.     A.  ROTHII.     Web.  Mohr. 

Autoicous;  in  black  tufts.  Leaves  divergent  or  secund,  from  an 
ovate  base,  lanceolate,  nerved ;  the  nerve  flattened,  thin,  vanishing  at 
apex,  with  a  more  or  less  evident  lamina  quite  to  the  point.  (T.  HA.) 

Sim.—yuHgermannia  rufcstris  HUDS.  Fl.  Angl.  436,  n.  22  (1762) ;  et  2  ed.  ii,  516,  n.  23  (1778). 
WITHER.  Bot.  Arr.  Br.  Veg.  ii,  698,  n.  28  (1776).  LIGHTF.  Fl.  Scot,  ii,  787,  n.  21  (1777). 
WEB.  Spic.  Fl.  Gott.  154,  n.  217  (1778).  RETZ.  Fl.  Scand.  Prod.  221  (1779).  ROTH  Fl. 
Germ,  i,  485,  n.  28  (1788).  LAICHARD.  Veg.  Eur.  ii,  657  (1791).  LILJEBL.  Svensk. 
Fl.  323  (1792).  SCHRAD.  Spic.  Fl.  Germ.  75  (1794).  MURR.  Syst.  Veg.  803  (1798). 
Andr.  rupestris  ROTH  Neue  Beytr.  i,  234,  excl.  syn.  (1802).  WEB.  f.  in  WEB.  MOHR 
Archiv.  i,  P.  I,  125,  t.  IV,  f.  2  (1804).  WAHLENB.  Fl.  Lapp.  306,  excl.  syn.  Eng.  B. 
(1812) ;  et  Fl.  Suec.  2  ed.  ii,  810  (1833).  SWARTZ  Summ.  Veg.  Scand.  58  (1814).  Sw. 
in  LILJEBL.  Svensk.  Fl.  3  ed.  569  (1816).  BRID.  Mant.  Muse.  206  (1819).  WAHLB.  Fl. 
Oot5,ob- "2  (I824)-  FRIES  St.  Agr.  Femsjon.  29  (1825).  SCHIMP.  Bry.  Eur.  vi,  Mon. 
21,  1.  IX  (1855) ;  Syn.  Muse.  Eur.  667  (1869),  et  2  ed.  819  (1876).  SULL.  Moss.  Un.  St. 
S3  n  Br  M  HAR™'  Skand'  FL  7  ed.  (1858).  MILDE  Bry.  Siles.  257  (1869).  HOBK. 

Andr.  RothiiWEB.  MOHR  Bot.  Tasch.  386,  t.  n,  f.  7.9  (1807).     HOOK.  Tr.  Lin.  Soc.  X, 

393,  t.  31,  f.  3  (1810).     Eng.  Bot.  t.  2162  excl.  syn.  Smithii  (1810).     SCHW^LG.  Suppl.  I, 

£  i,  43,  et  II    P.  i,  19,  t.  106  (1811-23).     SMITH  Comp.  Fl.   Brit.  3  ed.    163   (1818). 

[OOK.  TAYL.  Muse.  Brit.  2,  t.  8  (1818).     HARTM.  Skand.  Fl.  380  (1820).     HOOK.  Fl. 

2 


„.  -  _  "         RID-    ary-    Univ.  n,  730  (1827).     SWARTZ  Adnot.  Bot.   182  (1829); 

Dan  t.  2125,  f.  i  (1834).  HOOK.  Br.  Fl.  ii,  5  (1833).  MACKAY  Fl.  Hib.  P.  2,  7 
(1836)  GAROVAG  Bry  Austr.  exc.  10  (1840).  ANGSTR.  Disp.  Muse.  23  (1842). 
FRIES  Summ.  Veg  Scand.  97  (1846).  RABENH.  Deutsch.  Krypt.  Fl.  ii,  P.  3,  72  (1848). 
C.  MUELL.  Syn.  Muse,  i  9  (1849).  THEDEN.  in  Nya  Bot.  Not.  1849,  80.  ZETTERST. 
Mon  Andr.  Sc  29  (1855)  BERK.  Handb.  Br.  M.  310,  t.  2,  f.  7  (1863).  DE  NOT.  Epil. 
Bnol.  Ital.  748  (1869).  LINDB.  in  Journ.  Lin.  Soc.  xi,  460  (1870). 
Jungerm.  Rothii  HUEB.  Hepat.  Germ.  304  (1834). 


13 

Autoicous ;  in  opake  rufescent  or  blackish  fastigiate  tufts.  Stems 
^-i  in.  high,  rigid,  dichotomous,  denuded  at  base.  Leaves  patent, 
curved  upward  at  apex  or  falcato-secund,  nerved,  from  an  ovate  base, 
lineal-lanceolate,  smooth,  entire  at  margin  ;  nerve  semiterete,  prominent 
at  back,  vanishing  at  apex  ;  lamina  gradually  narrowed  to  apex,  where 
it  consists  of  about  five  rows  of  cells  ;  areolation  minute  and  punctiform 
above,  at  base  minute,  subquadrate  towards  margin,  lineal-rectangular 
in  the  middle.  Perichsetium  but  slightly  exserted,  three  outer  bracts 
erect,  oblong  with  an  acuminate  point,  nerved,  inner  convolute, 
nerveless.  Capsule  oblong-ovate,  black-brown,  pale  at  base. 

Male  infl.  gemmiform,  outer  bracts  erecto-patent,  nerved  only  at 
apex,  inner  nerveless ;  paraphyses  long,  thickened. 
HAB. — Mountain  rocks,  not  rare.  Fr.  6-7. 

England — Kerris  moor,  Penzance  (Curnow  1864)  !  !  Madron  and  Mulfra  hill,  Penzance 
(Ralfs)  !  !  Dartmoor  (Brent)  !  !  Lampford  Tor,  Great  Mis  Tor  and  Lydford,  Devon 
(Holmes)  !  !  Micklefell  and  Mazebeck  Scars,  Yorkshire  (Baker)  !  !  Buttermere 
(Hunt)  \  \  Bird's  crag,  Abergynalwyn  (Whitchcad)  \  \  Capel  Curig  (Whalley)  \  ! 
Carned  Llewellyn  (Wilson)  \  Scotland— Loch  Esk  (Dr.  Hooker  1837)  !  Loch  Kandor 
(Croall  1856)  !  !  Glen  Callater  (Hunt)  !  !  Mt.  Shade,  Strachan  (Sim)  !  !  Ireland— 
Cromaglown  (Lindberg)  !  ! 

Although  Schimper  refers  this  species  to  the  Jung,  rupestris  of  Linnaeus, 
the  plant  in  his  herbarium  is  the  Scandinavian  Andy,  obovata,  a  nerveless 
species,  having  very  little  in  common  with  the  plant  of  Dillenius  which 
should  be  the  true  type  of  the  species.  Seeing  then  how  much  the  name 
rupestris  has  been  misapplied,  it  would  seem  to  be  most  convenient  to  adopt 
one  about  which  there  can  be  no  mistake,  and  this  we  find  in  Weber  and 
Mohr's  A .  Rothii.  The  plant  varies  in  size,  and  is  generally  of  an  opake 
black  color,  but  sometimes  it  is  rufous  or  olivaceous  green,  and  is  generally 
less  rigid  than  most  of  our  species. 

Var.  ft.     Frigida.     (HUEBEN.)     LINDB. 

Plants  more  robust,  flexuose,  prostrate  in  flat  tufts,  black,  rufescent  or 
purplish.     Leaves  broader,  more  solid,  falcato-secund.     Bracts  of  male  infl. 
broadly  ovate. 
SYN. — Jungermannia  frigida  HUEBEN.  Hepat.  Germ.  305,  n.  4  (1834). 

Andr.  grimsulana  BRUCH  MSS.  DE  NOT.  Epil.  Briol.  Ital.  748  (1869).     HOBK.  Syn.  Br. 

M.  2.2. 

Andr.  Rothii  Var.  alpina  BRUCH  MSS. 
Andr.  Rothii  Var.  grimsulana  HOOK.  WILS.  in  Lond.  Journ.  Bot.  1844,  537.     C.  MUELL. 

Syn.  Muse,  i,  9. 
Andr.  nivalis  Var.  ft.  frigida  RABENH.  Deutsch.  Krypt.  Fl.  ii,  P.  3,  72  (1848).      REINSCH 

Muse.  Eur.  exsicc.  c.  fig. 
Andr.  rupestris  Var.  ft.  grimsulana  SCHIMP.  Bry.  Eur.  vi,  Mon.  22,  t.  X,  ft.     Syn.  Muse. 

667;  et  2  ed.  819. 
Andr.  Rothii  Var.  ft.  frigida.  LINDB.  in  lit. 

HAB. — Wet  rocks  at  considerable  elevations. 

Ben-mac-dhui,  Braemar ;  on  rocks  in  a  stream  near  the  summit  on  the  east  side  (A.  Croall 
1854)  !  !  Beamsley  Fell  near  Ilkley,  Yorkshire  (Baker  1858)  !  ! 


14 

This  beautiful  plant  is  larger  than  the  typical  form,  and  has  quite  the 
aspect  of  a  distinct  species,  but  the  differences  are  too  slight  to  afford 
satisfactory  characters.  The  Scotch  specimens  have  a  fine  rosy  purple  tint, 
and  are  much  more  robust  than  those  from  Yorkshire. 

Var.  y.    Hamata.     LINDB.  in  lit. 

Leaves  rather  lax,  somewhat  glossy,  fuscous,  green  on  the  young  shoots, 
strongly  falcate,  gradually  narrowed  upward  from  the  base. 

HAB. — Luggielaw,  Wicklow  (Lindberg  1873)  !  !     Wet  rocks  at  Carfury,  Madron  near  Penzance 
(Curnow  and  Marquand  1879)  !  ! 

This  variety  forms  the  transition  between  the  type  and  var.  falcata, 
agreeing  with  the  latter  in  habit  and  falcate  leaves,  but  with  the  former  in 
the  base  of  the  leaf,  and  in  the  lamina  being  distinct  to  apex,  as  well  as  in 
the  softer  texture. 

Var.  8.    Falcata.     (SCHIMP.)     LINDB. 

More  slender,  black,  leaves  falcato-secund,  from  a  broadly  obovate  base, 
suddenly  lanceolate-subulate ;  nerve  flattened,  vanishing  at  apex,  lamina 
very  narrow  above,  faintly  eroso-emarginate  just  below  point. 

SYN. — Lichenastrum  alpinum  nlgricans,  foliis  capillacels  re/lexis  DILL.   Hist.  Muse.  507,  n.  40 

t.  73,  f.  40  A.  and  B.  (1741),  et  Herbar. 

Jungermannia  surculosa,  erectinscula,  foliis  undique  imbricatis  acuminatis  hinc  rcflexis  L. 
Fl.  Suec.  336,  n.  920  (1745). 
"•fungermannia  rupestris  L.  Sp.  PI.  1135,  n.  20  (1753) ;  et  Fl.  Suec.  2  ed.  402,  n.   1045,  p.p. 

(1755)  >  non  Herbar. 

Andr.  falcata  SCHIMP.  in  Herb.  Hampe.  Bry.  Eur.  vi,  Mon.  24,  t.  XII.  Syn.  Muse.  669, 
et  2  ed.  821.     MILDE  Bry.  Siles.  257.     DE  NOT.  Epil.  Briol.  Ital.  749.     HOBK.  Syn.  Br. 
M.  22.     LINDB.  in  Journ.  Lin.  Soc.  xi,  460. 
Andr.  Rothii  Var.  ft.  papillosa  C.  MUELL.  Syn.  Muse,  i,  9. 
Andr.  Rothii  Var.  8.  falcata  LINDB.  in  lit. 
HAB. — Alpine  rortcs  ;  not  uncommon. 

England— Crib-y.Ddescil,  Snowdon  (Schimper  1865)  !  !  Stye-barrow  crag  and  Scawfell 
Pikes  (Baker  1867)  !  !  Grasmere  (Boswell  1876)  !  !  Sheep's  Tor,  Shaugh  Bridge  and 
Cad  Valley,  Devon  (Holmes  and  George]  !  !  Cader  Idris  (Pearson  1876)  !  !  Tyn-y-gros 
and  Glyder  Vach  (Wild  1877)  !  !  Llyn  Elsie  and  Llyn  Bodlyn  (George)  \  \  Scotland— 
Ben  Lawers  (Braithwaite  1862)  1  !  Ben  Voirlich,  Loch  Kandor  and  Bach-na-gairn 
(Hunt  1868)  !  !  Cobbler,  Arrochar  (George  1879)  !  ! 

Although  at  first  sight,  the  sudden  narrowing  of  the  leaf  above  the  base 
would  seem  to  indicate  that  this  is  a  good  species,  a  careful  examination  of 
many  specimens  from  all  parts  has  satisfied  me  that  it  must  sink  to  the  rank 
of  a  variety,  an  opinion  to  which  Prof.  Lindberg  has  also  arrived  ;  for  this 
character  is  not  constant,  as  other  leaves  on  the  same  plants  will  be  found 
o  approach  much  nearer  in  outline  to  those  of  A.  Rothii,  and  the  notching 
in  the  apical  margin  is  equally  liable  to  variation,  being  sometimes  hardly 
perceptible,  or  altogether  absent.  The  series  of  cells  in  the  apical  lamina 
appear  to  afford  some  distinctive  characters,  their  relative  proportions  being 
5  in  A .  Rothii  and  3  in  A .  falcata,  but  we  have  only  to  compare  young  leaves 
from  the  coma  with  older  ones  from  the  lower  part  of  the  stem,  to  find  that 
they  are  variable,  and  that  it  is  scarcely  possible  to  draw  a  line  sharply 
between  them. 


15 

Neither  is  the  falcate  direction  of  the  leaves  a  character  to  be  depended 
on,  for  Prof.  Lindberg  sends  specimens  collected  by  Hartman,  at  Varstien, 
in  the  Dovrefjeld,  in  which  the  leaves  spread  out  equally  on  all  sides,  though 
with  the  abruptly  dilated,  concave  base  of  typical  A .  falcata.  We  believe 
that  Wilson  until  his  death  maintained  that  A .  Rothii,  falcata  and  crassinervis 
only  constituted  a  single  species.  A  low  mammillar  papillosity  is  also 
observable  on  the  cells  of  the  upper  part  of  the  leaf  in  the  var.  falcata,  but 
this  will  also  be  distinguished  in  A.  Rothii,  after  treatment  with  caustic 
alkali. 


SECT.  2.     CHASMOCALYX.     LINDB. 

Leaves  and  perichsetial  bracts  alike  in  form,  the  latter  patent, 
distinctly  nerved.  Capsule  deeply  cleft  into  4,  6  or  8  valves. 

5.     A.  NIVALIS.     Hooker. 

Dioicous  ;  stem  elongated,  leaves  laxly  imbricated,  papillose  on 
both  sides,  falcato-secund,  lanceolate,  nerved  to  apex  ;  perichaetial 
bracts  resembling  the  leaves.  (7\ 


SYN.  —  Andr.  nivalis  HOOK.  Trans.  Lin.  Soc.  X,  395,  t.  31,  f.  4  (1810)  ;  Eng.  Bot.  t.  2334  (1811). 

HOOK.  TAY.  Muse.  Brit.  2,  t.  8  (1818).     GRAY  Nat.  Arr.  Br.  PI.  1,709,0.4(1821).    HOOK. 

Fl.  Scot.  P.  2,  121  (1821).     BRID.  Bry.  Univ.  ii,  732  (1827).     SCHWAEG.  Suppl.  Ill,  P.  I, 

t.  248  (1828).     HARTM.  Skand.  Fl.  5  ed.  404  (1849).     C.  MUELL.  Syn.  Muse,  i,  9  (1849). 

WILS.   Bry.  Brit.   13,  t.  8  (1855).     SCHIMP.  Bry.  Eur.  vi,  Mon.  25,  t.  XIV  (1855)  ;  Syn. 

Muse.  670  (1860),  et  2  ed.,  822  (1876).    BERK.  Handb.  Br.  M.  310  (1863).     DE  NOT.  Epil. 

Briol.  Ital.  750  (1869).     HOBK.  Syn.  Br.  M.  22  (1873). 
A.  nivalis  Var.  (3.  ZETTERST.  Mon.  Andr.  Scand.  23  (1855). 
A.  nivalis  Var.  ft.  Zetterstedtii  HARTM.  Skand.  Fl.  7  ed.  400  (1858). 
Jungerm.  nivalis  HUEBEN.  Hep.  Germ.  306  (1834). 

Dioicous  ;  in  soft,  blackish-green,  rufescent  or  fuscous,  widely 
spreading  tufts.  Stems  3-4  in.  high,  slender,  elongated,  reddish, 
decumbent  at  base,  ascending,  flexuose,  dichotomously  branched. 
Leaves  patent,  rather  distant,  secund  ;  soft,  the  lower  smaller,  ovato- 
lanceolate,  the  upper  falcato-secund,  from  an  oblong  base,  gradually 
lanceolate,  acute,  densely  papillose  on  both  sides  ;  the  nerve  narrow, 
subterete,  lost  in  the  apex,  fuscous,  prominent  at  back  ;  areolation 
laxer,  soft,  rotundato-quadrate  above,  elongato-quadrate  at  base. 
Perichsetial  bracts  divergent,  precisely  resembling  the  leaves  ;  capsule  a 
little  exserted,  oblong,  cleft  to  base  into  6,  or  more  rarely  4,  narrow 
valves.  Calyptra  very  small,  conical. 

Male  plants  in  distinct  tufts,  the  infl.  lateral  by  innovation,  distinct, 
gemmiform  ;  bracts  numerous,  ovato-lanceolate,  inner  roundish,  acumi- 
nate nerveless  ;  antheridia  4-6,  paraphyses  numerous,  longer. 


i6 

HAB.— Higher  mountains  of  Scotland,  on  dripping  rocks.  Fr.  7-8. 

Ben  Nevis  (Hooker  and  Borrer  1808)  !     Ben  Cruachan,  Argyleshire  (Borrer  1810)  !     Ben 
Macdhui  and  Cairngorm  (Croall)  !  ! 

This  fine  species  appears  to  attain  its  fullest  development  on  the 
Grampian  range  ;  although  it  is  found  in  Scandinavia,  and  on  the  higher 
peaks  of  the  Pyrenees,  Switzerland,  the  Tyrol,  and  eastward  to  Salzburg  and 
Carinthia,  we  have  not  seen  any  specimens  to  equal  those  of  native  growth. 

Var.  (3.    Fuscescens.     HOOK. 

Stems  more  flexuose  and  flaccid,  with  strongly  falcate  leaves  of  a  brown 
color. 
SvH.—A.nivalis  ft.  fuscescens  HOOK,  in  Trans.  Lin.  Soc.  X,  395  (1810). 

A.  nivalis  HOOK.  ZETTERST.  Mon.  Andr.  Scand.  23  (1855).     HARTM.  Skand.  Fl.  7  ed. 
400  (1858). 

HAB. — With  the  typical  form  on  Ben  Nevis  and  Ben  Macdhui  (Hooker]  \  \ 

This  form  is  described  as  the  type  by  Zetterstedt,  because  as  he  says, 
it  is  the  common  form  in  Scandinavia  and  assumed  to  be  therefore  more 
typical.  There  does  not  seem  any  reason  to  disturb  Hooker's  original 
arrangement,  although  it  is  certain  the  variety  more  frequently  bears  fruit, 
while  the  type  is  richer  in  male  inflorescence. 


TAB.    I. 

A.  Andreaa  petrophila. 

a.  typical  form  (Ben  Lawers,  Braithwaite).  ft-  Var.  homomalla  (Braemar,  Hunt}. 
y.  Var.  acuminata  (Ben  Nevis,  George).  8.  Var.  flaccida  (Braemar,  Hunt).  «•  Var. 
sylvicola  (Ben  Macdhui,  Hunt).  £.  Var.  gracills  (Loch-na-Gar,  Sim).  •*]-  Var.  alpcstris 
(Braemar,  Croall).  $.  Var.  sparsifolia  (Ben  More,  George). 

B.  Andrea  a  alpina. 

a.  typical  form  (Ennerdale,  Baker),    y.  V&r.Jlavicans  (Ben  Nevis,  Hooker). 

C.  Andreaa  crassinervis  (Hebden  bridge,  Hunt}. 

TAB.  II. 

A.  Andreaa  Rothii. 

a.  typical  form  (Dartmoor,  Holmes),  ft.  Var.  frlglda  (Ben  Macdhui,  Croall).  y.  Var. 
hamata  (Luggielaw,  Lindberg).  8.  V&r.falcata  (Snowdon,  Schimper). 

B.  Andreaa  nivalis. 

a.  typical  form  <?   (Ben  Macdhui,  Hunt),    ft.  Var.  fuscescens   ?   (Ben  Nevis,  George). 

i.  Branch  in  a  moist  state.  2.  Leaf  x  25.  2a.  Apex  of  leaf  dry.  2aa.  Areolation  of 
apex  moist,  aab.  Ditto  of  base  x  180.  2x.  Transverse  section  of  leaf.  3.  Perichatial 
bract.  4.  Male  inflorescence  with  bract,  antheridium  and  paraplwses.  5.  Capsule  dry. 
6.  Calyptra. 


Br.  Moss. 


ANDREJE.A.CEJE.  . 


T.I. 


Br.Moss.Fl. 


T.n. 


R  BrcxiUiwoofce  cttl  cuinolxD.  Blair Itilt, 


B  U  X  B  A  U  M  I  A  C  E 


JULY  IST,  1880. 


BUXBAUMIA.    HALL. 

1.  B.  aphylla.     L. 

2.  —  iudusiata.     BRID. 


Sect.  2.     STEGOCARPI. 

Capsule  dehiscing  transversely  by  a  lid  ;  or  in  a  few  lower  forms 
the  lid  is  absent,  and  the  capsule  ruptures  only  by  decay  of  its  walls. 

Div.  i.    ANARTHRODONTEI. 

Peristome  consisting  of  solid  teeth  not  transversely  jointed,  often 
attached  at  the  apex  to  the  discoidal  dilated  extremity  of  the  columella ; 
sometimes  ciliiform  ;  very  rarely  none. 


Fam.  2.     BUXBAUMIACE^:. 

Plants  very  small,  stemless,  growing  on  the  ground  or  on  rotten 
wood.  Leaves  obsolete-  Capsules  large,  oblique,  flattened,  on  stout 
pedicels ;  calyptra  minute  conical ;  peristome  of  one  or  several  series 
of  linear  teeth  ;  endostome  a  32-plicate  membrane  in  form  of  a  twisted 
truncate  cone  ;  spores  very  small. 

The  extremely  curious  plant  on  which  the  solitary  genus  in  this 
family  is  founded,  was  first  discovered  by  Buxbaum  in  1712,  near 
Astracan,  on  the  banks  of  the  Volga,  and  he  says,  "  I  wished  to 
follow  the  example  of  Marchanti,  and  make  it  into  a  new  genus 
and  name  it  after  my  father,  but  called  to  mind  the  fox,  who  was 
derided  by  the  others,  because  he  begged  the  grapes,  not  for  himself, 
but  for  his  sick  mother." 

It  was  for  some  time  regarded  as  a  fungus ;  but  Dillenius 
correctly  referred  it  to  the  mosses,  and  indeed  terms  it  regina 
muscorum;  Schmidel  submitted  it  to  a  minute  investigation  and 
published  the  result  in  1758,  in  a  most  beautifully  illustrated  Dis- 
sertation, and  Linnaeus  also  treated  on  it  in  several  places  ;  in  our 
own  day  Zukal  has  gathered  together  much  of  what  is  known  on 
the  subject  in  an  admirable  paper  in  Verh.  k.  k.  zool.  bot.  Gesells. 
Wien  xiii,  p.  1149  (1863). 

The  sporadic  character  of  its  distribution  and  the  scanty  numbers 
in  which  it  is  found  have  invested  it  with  rarity,  and  its  discovery 
is  generally  hailed  with  acclamation  by  collectors,  while  its  peculiar 
structure  will  always  render  it  an  object  of  interest  to  the  bryologist. 

The  first  appearance  of  Buxbaumia  aphylla  is  manifested  by  the 
surface  of  the  ground  being  colored  in  patches  of  a  peculiar  greenish 


20 


black,  this  is  a  felted  web  of  minute  branched  filaments  of  protonema, 
from  which  young  plants  bud  off  as  in  other  mosses;  these  are  at 
first  globose  and  extremely  minute.  The  almost  invisible  leaves  are 
rather  to  be  looked  upon  as  perichaetial  bracts,  and  are  peculiar  in 
the  flagelliform  prolongations  of  the  marginal  cells,  which  give  them 
a  lacerated  appearance,  and  long  before  the  calyptra  is  cast  off  they 
become  brown  and  dead.  The  reason  of  this  is  explained  by  Zukal 
thus: — "Their  activity  probably  consists  in  the  transmission  of 
moisture,  and  along  with  the  adventitious  radicles  they  first  form 
a  protection  to  the  young  archegonium,  and  then  in  the  act  of 
impregnation  serve  as  a  sponge,  to  take  up  fluid  swarming  with 
antherozoids,  and  convey  them  to  the  waiting  archegonia,  this 
function  ended,  they  wither  and  die." 

Taking  a  single  plant,  we  observe  at  the  base  a  bulb-like  swelling 
covered  with  a  close  felt  of  proembryo  filaments  and  minute  leaves, 
this  by  vertical  section  we  find  is  a  cup-like  sheath,  embracing  the 
base  of  the  seta,  the  outer  cells  of  which  are  large,  quadrate,  with 
thick  walls  and  colorless  contents,  and  become  the  cuticle  of  the  seta, 
the  cells  internal  to  this  layer  being  long  and  thin  walled,  constitute 
the  bundle  of  vascular  cells  forming  the  centre  of  the  seta,  while  the 
cup-like  sheath  is  all  we  find  to  represent  the  parenchyma  of  the 
stem.  In  the  free  seta  the  first  two  elements  are  more  fully  developed, 
the  outer  cuticular  cells  being  still  further  thickened  into  warts. 
Where  the  seta  joins  the  capsule  an  elegant  neck  is  formed,  through 
the  centre  of  which  the  vascular  bundle  is  continued  as  the  pedicel 
of  the  spore  sac,  and  then  enlarges  into  the  columella  and  passes 
on  to  the  apex  of  the  operculum.  Around  the  columella  is  the  spore 
sac  composed  of  three  cell-layers,  the  cavity  between  it  and  the 
capsular  wall  being  traversed  by  numerous  jointed  confervoid  filaments. 
A  transverse  section  through  the  lid,  before  maturity,  shows  us  a 
circle  of  large  triangular  cells,  the  two  lateral  sides  being  equal,  and 
the  shorter  base  turned  alternately  inward  and  outward,  thus  forming 
a  wavy  zigzag  round  the  central  bundle  of  vascular  cells.  In  course 
of  growth  the  short  bases  become  entirely  resorbed,  while  the  lateral 
sides  of  the  triangles  grow  together  and  become  thickened  into  a 
membrane,  and  their  outward  angles  further  strengthened  by  a  stout 
ridge  of  cellulose.  It  thus  forms  an  enduring,  rigid,  tubular,  tent-like 
endostome,  the  function  of  which  is  thus  remarked  on  by  Zukal  :— 
"  In  many  mosses  the  peristome  only  serves  to  prevent  the  spores 
passing  out  of  the  capsule  in  unfavorable  weather;  if  the  spores 
require  warm,  dry  air  as  a  necessary  condition  for  germination,  then 
the  peristome  is  so  adapted  that  in  wet,  rainy  weather  it  completely 
closes  the  mouth,  and  on  the  contrary,  if  moisture  be  the  condition 
needed,  then  in  dry  weather  the  peristome  closes  the  mouth  of  the 
capsule.  The  spores  of  many  mosses  are  first  set  free  by  the  falling 
in  pieces  of  the  capsule  by  decay,  and  until  this  occurs  they  must  be 


21 

ripening;  in  the  cleistocarpous  mosses  this  is  provided  for  by  the 
absence  of  a  lid,  and  in  the  Polytrichaceae  by  the  discoidally  expanded 
summit  of  the  columella  closing  the  mouth.  In  Buxbaumia  the  lid 
remains  long  attached  to  the  mouth,  while  it  is  firmly  joined  to  the 
columella  by  the  vascular  bundle  running  through  it,  and  only  becomes 
loosened  by  the  rotting  of  the  fruit ;  the  endostome  also  forms  a  high, 
firm,  conical  membrane,  with  a  small  aperture  at  the  apex,  formed  by 
the  falling  away  of  the  vascular  bundle  ;  through  this  narrow  opening, 
however,  the  spores  cannot  escape,  even  if  the  erect  position  of  the 
fruit  would  allow  it,  and  thus  they  are  forced  to  remain  in  the  capsule. 
In  time,  the  upper  half  of  the  capsule  separates  at  the  lateral  seam, — 
like  a  bivalve  fruit,  as  it  was  described  by  old  authors, — and  thus  a 
free  exit  is  made  for  the  spores." 

I  follow  C.  Miiller,  Zukal,  and  Lindberg  in  excluding  Webera  EHRH. 
(Diphyscium  MOHR.)  from  this  family,  for  the  two  genera  have  nothing 
in  common  but  the  external  form  of  the  capsule,  while  the  highly 
developed  seta,  absence  of  stem  and  degraded  leaves  of  Buxbaumia 
are  totally  opposed  to  the  absence  of  a  pedicel,  distinct  stem,  and 
highly-developed  leaves  seen  in  Webera. 

Besides  the  European  species  of  Buxbaumia,  the  only  others 
recorded  are  B.  Javanica  C.  MUELL.  and  B.  Tasmanica  MITT.,  the 
former  very  close  to  B.  aphylla,  the  latter  equally  near  to  B.  indiisiata, 
and  probably  not  specifically  distinct  from  them. 

By  the  depressed  asymmetric  capsule,  so  unusual  in  mosses,  we 
have  some  indications  of  affinity  with  the  exotic  genus  Dawsonia, 
and  a  further  support  to  the  position  of  the  family  among  the 
Polytrichoidea,  though  it  must  be  admitted  that  the  cilia  of  the 
peristome  of  Buxbaumia  do  present  a  few  transverse  articulations. 


BUXBAUMIA.       HALLER. 
(Enum.  Stirp.  Helv.  i,  p.  10  (1742).) 

Plants  very  small,  scattered.  Leaves  extremely  minute,  broadly 
ovate  or  oblong,  coarsely  serrated,  laxly  areolate  with  oblongo- 
hexagonal  echlorophyllose  cells,  or  palmato-laciniate,  the  lacinise  and 
basal  cells  becoming  altered  by  age  into  long  filaments,  and  finally 
into  dense  radicular  tomentum.  Inflorescence  dioicous.  Male  plants 
very  minute,  few-leaved,  the  bracts  not  laciniate,  antheridia  one  or 
two,  subglobose,  with  few  paraphyses.  Female  plants  presenting 
10-12  perichaetial  bracts  which  after  impregnation  develop  cilia. 
Calyptra  very  small  conico-cylindric,  generally  cleft  at  the  side  ; 
capsule  on  a  thick  verrucose  seta,  with  a  short,  erect  neck,  oblique, 
ventricose,  ovate,  depressed  above,  with  a  conico-cylindric  operculum. 


Cuticle  at  margin  of  the  mouth  of  capsule  splitting  into  about  16  scale- 
like  fragments  which  roll  back  and  reveal  the  pseud-annulus,  com- 
posed of  several  layers  of  cells,  and  forming  the  thickened  mouth  of 
capsule  ;  peristome  rudimentary  and  adhering  to  the  pseud-annulus, 
or  consisting  of  one  or  several  rows  of  irregular  filamentous  teeth  ; 
endostome  a  conical  tubular  32-plicate  membrane,  thickened  along 
the  angles  of  the  folds,  and  slightly  twisted  to  the  right.  Spores 
very  small,  spherical. 

Small  as  this  genus  is,  the  remarkable  variation  in  the  peristome  has 
led  to  its  division  into  two  sections — Eubuxbaumia  for  B.  aphylla,  Polyodon 
for  B.  indusiata — the  difference  in  the  form  and  texture  of  the  capsules  also 
affording  an  additional  distinction. 

The  actual  presence  of  leaves  was  first  noticed  by  Robert  Brown 
(Linn.  Trans,  xii,  p.  583). 

CLAVIS  TO  THE  SPECIES. 

Capsule  depressed  on  upper  surface,  firm,  with  a  thickened  margin ;  peristome  one  row  of 
short  imperfect  cilia. 

B.  aphylla. 

Capsule  ovate-oblong,  thin,  the  cuticle  loose  and  splitting  up  beneath ;  peristome  of  four 
rows  of  cilia. 

B.  indusiata. 


i.    BUXBAUMIA    APHYLLA.     L. 

Capsule  pachydermous,  glossy,  depressed  on  the  upper  surface, 
with  a  thickened  margin.  Peristome  a  single  row  of  short,  imperfect 
teeth  adhering  to  the  inside  of  the  margin  of  mouth  (T.  Ill  A). 

SYN. — Muscus  capillacens  aphyllos,  capitulo  crasso  bivalvi  BUXB.     PI.  min.  cogn.  cent.  II,  8, 

tab.  4,  f.  2  (1728).     DILL.  Hist.  muse.  477,  n.  5,  et  554,  tab.  68,  f.  5  (1741),  et  Herb. 
Buxbaumla  HALL.  Enum.  stirp.  Helv.  i,  10  (1742). 

Hippopodlum  FABRIC.  Prim.  fl.  butisbac.  31  (1743).  EHRH.  Phytoph.  n.  10 ;  Beitr.  IV, 
146  (1789). 

Buxb.  aphylla  L.  Diss.  Buxb.  §  II,  10,  et  §  VII,  15  (1757) ;  et  Amcen.  acad.  V,  83  et  go 
(1760).  OEDER  Fl.  Dan.  1.44  (1761),  et  t.  2752,  fig.  i.  WEB.  Spic.  Fl.  Gott.  130 
(1778).  RETZ.  Fl.  Scand.  Pr.  n.  1188  (1779).  EHRH.  Hann.  Mag.  1780,  p.  235. 
L.  FIL.  Meth.  Muse.  362  (1781).  HEDW.  Fund.  muse.  P.  II,  96,  tab  3,  f.  10  et  t.  9,  f.  52 
(1782);  Sp.  muse.  166  (1801).  VILL.  PI.  Dauph.  iii,  919  (1786).  TIMM  Fl.  Megap.  n. 
858  (1788).  ROTH  Fl.  Germ,  i,  466  (1788) ;  et  iii,  P.  I,  343  (1800).  JACQ.  Collect,  iii, 
213(1790).  HOFFM.  Deutschl.  Fl.  ii,  21  (1795).  STURM  Deutsch.  Fl.  ii,  tab.  3  (1798). 
SWARTZ  Muse.  Suec.  74  (1799).  BRID.  Muse.  rec.  ii,  P.  Ill,  147  (1803) ;  Sp.  muse.  Ill, 
114  (1806) ;  Mant  muse.  123  (1819).  TURN.  Muse.  Hib.  104  (1804).  LAM.  et  CAND.  Fl. 
fr.  3  ed.  i,  513  (1805) ;  et  Syn.  Fl.  Gall.  106.  SCHULTZ  Fl.  Starg.  255  (1806)  ;  Eng.  Bot. 
t.  1596  (1806).  WEB.  MOHR  Bot.  Tasch.  381  (1807)  VOIT  Muse.  Herb.  126  (1812). 
WAHL.  Fl.  Lap.  350  (1812).  SCHWAEG.  Suppl.  I,  P.  II,  26  (1816).  HOOK.  Fl.  Lond.  n. 
s.  I,  T.  23  (1815).  MART.  Fl.  crypt.  Erl.  84  (1817).  HOOK.  TAY.  Muse.  brit.  84,  T.  22 
(1818).  HOOK.  Fl.  Scot.  P.  2,  139  (1821) ;  Brit.  Fl.  ii,68  (1833).  GREV.  in  Mem.  Wern. 
Soc.  iii,  442(1821);  etV,  79,  PI.  Ill,  fig.  13-23  (1824).  FUNCK  Moostasch.  38,  t.  24 
(1821).  HUEB.  Bry.  germ.  539  (1833).  BR.  SCHIMP.  Mem.  Soc.  mus.  Strasb.  ii,  Mon.  4, 
t.  i  (1835)  ;  Bry.  Eur.  iv,  Mon.  5,  t.  i,  et  Suppl.  t.  i ;  Syn.  Muse.  453  (1860)  ;  et  2  ed. 


23 

549  (1876).     RABEN.  Deutsch.  Krypt.-FI.  ii,  P.   Ill,  240  (1848).     C.  MUELL.  Syn.  i,  151 

(1848)  ;  et  Deutsch.  moose  144  (1853).     WILS.  Bry.  brit.   igg,  T.  22  (1855).     JENS.  Bry. 

dan.  59  (1856).     KLINGGR.  Crypt.  Preus.  15  (1858).     HARTM.  Skand  Fl.  g  ed.  ii,45  (1864). 

LIND.  in  Not.  ur  Sallsk.  Fn.  et  Fl.  fenn.  ix,  155  (1867).     BERK.  Hand.  br.  m.  215,  t.  ig, 

fig.  6  (1869).     DE  NOT.  Ep.  Briol.  ital-346  (1869).     MILDE  Bry.  siles.  255  (1869).     HOBK. 

Syn.  Br.  M.  99  (1873). 
Buxb.  caulescens  SCHMID.   Diss.   Buxb.  25,  tab.  i   (1758).     SCHRANK  Baiers.  Fl.  ii,  485 

(1789). 

Buxb.  caulescens  aphylla  HALL.  Hist,  stirp.  Helv.  iii,  25  (1768). 
Saccophoms  aphyllus  P.  BEAUV.  Prodr.  30  (1805). 
Hippopodium  aphyllum  ROHL.  Deutschl.  Fl.  2  ed.  iii,  120  (1813). 
Buxb.  curiosa  GRAY  Nat.  Arr.  Br.  pi.  i,  750  (1821). 
Buxb.  vulgaris  BRID.  Bry.  univ.  i,  329  (1826). 

Stem  none.  Vaginula  thick,  covered  with  fuscous  radicles. 
Bracts  minute,  brownish,  the  lower  ovate,  deeply  toothed,  the  upper 
broader,  fimbriato-ciliate,  areolation  lax,  the  cells  5-6  angled.  Seta 
rigid,  erect,  straight,  |  to  i  in.  high,  deep  purple,  very  scabrous. 
Capsule  with  a  short  neck,  inclined  and  subhorizontal,  depressed, 
semiovate  and  somewhat  boat-shaped  above,  ventricose  below, 
smooth,  greenish  brown,  the  cuticle  thicker,  glossy,  and  closely 
adherent,  rolling  back  at  the  mouth  in  about  16  segments,  and 
forming  a  coroniform  border ;  operculum  short,  conoid,  obtuse,  falling 
with  the  columella  attached ;  peristome  indistinct,  united  to  the 
pseud-annulus  or  abortive.  Spores  very  small. 
HAB.  —On  the  earth  or  on  decayed  wood,  especially  in  fir-woods.  Fr.  4-7. 

Engl. — Sprowston,  Norfolk  (Hooker,  Dec.,  1806)  !  Sawley  moor,  near  Ripon,  Yorkshire 
(Mclycr  1845)  !  Ogden  Clough,  Tintwistle,  Cheshire  (Scholefield  1867)  !  !  Near 
Virginia  Water,  hedge  bank,  on  mud  taken  from  the  ditch  below  (Prof.  Lawson, 
Apr.,  1868)  !  ! 

Scot. — Rosslin  (Maughan  1808).  Aberdeen  (Jackson  1809).  Hill  of  Dungloe,  Kinross, 
and  Cleish  Hills  (Grevillc).  Waddenhope  rigg,  near  Peebles  (Stewart  1818).  George- 
town  hill,  Fife  (Arnotf).  Campsie  Glen,  Glasgow,  and  Ben  Ledi  (Lyon  1841).!  Sidlaw 
hills  (Gardiner  1844)  !  !  Ochil  hills.  Bowling  Bay.  Sinnaboth,  Towie,  near  Aberdeen 
(Coutts  1860).  Glen  Prosen  (Fergnsson  1867).  Brockhole's  plantations,  near  the  Tweed 
(Jerdon),  and  barren  places  on  the  Bizzle  (Boyd  1867).  Clough. na-ben  and  Sculty 
hill,  Banchory  (Sim  1869)  !  ! 

Irel.— Purple  mountain,  Killarney  (Wade  in  R.  Dubl.  Soc.  Trans,  iv.— 1804),  not  found 
since. 

This  strange  plant  has  an  annoying  habit  of  disappearing  from  the 
stations  it  occupies,  probably  due  to  some  change  in  the  constituents  of 
the  substratum  on  which  it  is  produced,  and  thus  we  can  never  rely  upon 
finding  it  a  second  time  in  the  same  locality. 

2.    BUXBAUMIA  INDUSIATA.    End. 

Capsule  leptodermous,  not  glossy,  not  depressed  nor  margined. 
Peristome  of  four  series  of  solid,  slender,  papillose  teeth  ;  each  series 
increasing  in  length.  (T.  Ill  B). 

SYN. — Buxbaumia  viridis  BRID.  in  litt.  LINDB.     Muse.  Scand.  13  (1880). 

Buxb.  aphylla  Var.  /?.  viridis  Move,  in  DE  CAN.  Fl.  fr.  3  ed.  V,  227  (1815).  MOUG.  NEST. 
Stirp.  Cr.  Vog.  R.  n.  720  (1823).  MYRIN  in  W.  Ak.  Handl.  1831,  p.  253. 


24 

Buxb.  indusiata  BRID.  Br.  univ.  i,  331  (1826)  ;  et  ii,  Suppl.  741,  t.  2,  fig.  1-8  (1827). 
WALLR.  Fl.  cryp.  Germ,  i,  116  (1831).  HARTM.  Sk.  Fl.  2  ed.  HUEBEN.  Muse.  germ. 
540  (1833).  BR.  SCHIMP.  in  Mem.  Soc.  Mus.  Strasb.  ii,  Mon.  p.  4,  t.  2  (1835) ;  Bry.  Eur. 
iv,  Mon.  6,  t.  2  et  suppl.  t.  i ;  Syn.  Muse.  454  (1860)  et  2  ed.  550  (1876).  DE  NOT.  Syll. 
muse.  Ital.  146  (1838)  ;  Epil.  Briol.  Ital.  347  (1869).  C.  MUELL.  Syn.  i,  151  (1848)  et 
Deutsch.  Moos.  147  (1853).  RABEN.  Deutsch.  Krypt.  Fl.  ii,  P.  Ill,  240  (1848)  et  Krypt. 
Fl.  Saehs.  i,  522  (1863).  JENSEN  Bry.  dan.  59,  t.  8,  f.  41  (1856).  KLINGGR.  Crypt.  Preuss. 
15  (1858).  LANGE  Fl.  dan.  t.  2752,  f.  2.  HARTM.  Sk.  Fl.  9  ed.  ii,  p.  45  (1854).  LINDB. 
in  Not.  ur  Sallsk.  Fn.  et  Fl.  fenn.  ix,  156  (1867).  MILDE  Bry.  Siles.  256  (1869).  HOBK. 
Syn.  Br.  M.  p.  99  (1873). 

Buxb.  aphylla  SCHW^GR  in  L.  Sp.  PI.  5  ed.  V,  P.  II,  fasc.  i,  p.  24,  p.  p.  (1830). 
B.  aphylla  Var.  ft.  indusiata  WAHLENB.  Fl.  suec.  2  ed.  ii,  p.  760  (1833).     HAMPE  in  Reg. 
bot.  Zeit.  1837,  P-  279- 

Stem  none.  Vaginula  thick,  covered  with  rufescent  tomentum. 
Bracts  minute,  rufescent,  ovate  or  oblongate,  obtuse,  the  lower 
obsoletely  crenulate  at  margin,  the  upper  fimbriato-ciliate,  areolation 
lax,  5-6  angled.  Seta  rigid,  erect  or  flexuose,  shorter,  rufo-fuscous, 
less  scabrous  ;  capsule  suberect,  ventricose,  ovate-oblong,  pale  greyish- 
green,  the  cuticle  thin,  loose,  after  the  fall  of  the  operculum  splitting 
up  beneath  and  rolling  back  towards  the  sides;  operculum  larger, 
more  conic,  obtuse,  peristome  in  four  rows,  teeth  subtriquetro-linear, 
the  outermost  very  short,  the  others  gradually  increasing  in  length, 
more  or  less  evidently  articulated,  fuscescent.  Spores  larger,  greenish. 
HAB.  On  rotten  branches  in  pine  woods.  6-7. 

Paftnanich,  near  Ballater,  (Cruickshank  1847).  North  face  of  Craigendinnie  hill,  near 
Aboyne,  at  500  ft.  (Dickie  and  Roy,  June,  1867).  Reported  also  from  Rosshire. 

Lindberg  suspects  this  species  to  be  synoicous,  as  he  has  frequently 
found  empty  antheridia  among  the  vaginular  tomentum,  but  never  male 
plants. 


TAB.     III. 


A.  Buxbaumia  aphylla  (Virginia  Water,  Prof.  Lawson). 

B.  Buxbaumia  indusiata  (Craigendinnie,  Prof.  Dickie). 
a.  Perfect  plants,    b.  Young  plant,  nat.  size  and  magnified. 

i.  Plant  magnified.  2.  Antheridium.  3.  Perichjetial  bracts.  33.  Same,  more  magnified, 
showing  the  areolation.  4.  Calyptra.  5.  Operculum  and  part  of  columella.  6.  Trans- 
verse section  through  the  middle  of  capsule.  7.  Filament  connecting  the  spore-sac  with 
the  lining  of  the  capsule.  8.  Transverse  section  through  the  operculum  and  endostome, 
showing  the  plies  and  thickened  ridges  of  the  latter.  9.  Mouth  of  capsule  after  removal 
t  operculum.  10.  Vertical  section  of  part  of  same.  a.  Cuticular  stratum,  b.  Pseud- 
annulus.  c.  Cilia  of  peristome.  d.  Tubular  endostome.  ii.  Pedicellate  spore-sac, 
the  walls  of  capsule  dissected  away. 


BTJXB  AUMIAC^E . 


T.IIL 


GEORGI 


GEORGIA.     EHRH. 

1.  G.  pellucida  (L).     RABENH. 

2.  —  Brownii  (DICKS).     C.  MUELL. 


Fam.  3.     GEORGIACE^E. 

Plants  caespitose  or  very  small  and  gregarious  ;  the  leaves  in 
3-5  rows,  smooth,  ovate,  or  lanceolate  with  a  thin  nerve,  areolation 
hexagono-rotundate,  sparingly  chlorophyllose.  Inflorescence  gemmi- 
form.  Calyptra  mitriform,  lobed  at  base,  longitudinally  plicate, 
covering  most  of  capsule,  which  is  erect,  cylindric  or  oval,  regular, 
smooth.  Annulus  none.  Operculum  conical ;  peristome  of  4  triquetro- 
pyramidal  teeth,  composed  externally  of  pachydermous,  elongato- 
prosenchymatous,  colored  cells,  internally  of  lax  hyaline  cells ;  rarely 
wanting.  Inhabiting  damp,  shady  rocks,  rotten  trunks  of  trees,  or 
turfy  soil. 

Mr.  Mitten  constitutes  of  this  family  his  section  Elasmodontes,  but 
the  teeth  are  not  lamellar,  for  the  peristome  truly  consists  of  a  conical 
mass,  composed  of  the  whole  parenchyma  within  the  operculum,  or  the 
upper  end  of  the  columella  united  to  the  teeth,  which  splits  into  four 
triangular  pyramids  formed  of  elongated  incrassate  cells. 

Ehrhart  founded  the  genus  Georgia  in  honor  of  our  George  the  3rd  (to 
whom  also  Hedwig  dedicated  his  great  work  "  Descr.  et  adumb.  Muse, 
frond."),  and  he  says  in  his  Beitnige  iii,  p.  126,  "  Hedwig's  Tetraphis  is  .no 
other  than  my  Georgia.  If  botanists  deserve  a  memorial  of  their  names  in 
botany,  equally  worthy  of  the  honor  are  great  patrons  of  the  science,  as 
my  friend  Hedwig  must  admit.  I  propose  to  give  to  my  new  genera  the 
names  of  such  distinguished  men,  and  thus  the  present  bears  the  name  of 
one  of  the  greatest  supporters  of  botany."  Ehrhart's  Catharinea,  Swartzia, 
Weissia  and  Weberd  must  equally  be  retained,  instead  of  the  more  modern 
names  which  have  displaced  them,  and  of  the  same  names  subsequently 
applied  by  other  botanists  to  very  different  genera.  Tetrodontium  was 
established  by  Schwaegrichen,  no  doubt  from  its  different  habit,  but  it 
possesses  no  essential  character  of  sufficient  importance  to  separate  it 
from  Georgia.  Berggren,  in  an  admirable  paper,  "  Studier  ofver  Mossornas 
byggnad  och  utveckling.  2,  Tetraphidea"  in  Act.  Univ.  Lund,  vii,  n.  8  (1870), 
points  out  that  the  frondiform  leaves  also  occur  in  G.  pelhicida,  developed 
from  gemmules,  but  they  appear  in  the  protonemal  stage  preceding  the 
ordinary  state  of  the  plant,  and  disappear  with  its  further  development ; 
a  sketch  of  one  of  these  spathulate  fronds,  reduced  from  Berggren's  figure, 
is  given  at  T.  IV,  A.  Fig.  9. 

The  genus  Georgia  appears  to  touch  various  widely  different  families 
without  having  much  relation  with  any  of  them,  thus  the  sulcate  calyptra 
forcibly  reminds  us  of  Zygodon  and  Orthotnchum,  while  the  areolation  of  the 
leaves  is  mnioid,  and  again  the  peristome  is  quite  peculiar  in  the  structure 
of  the  teeth  ;  we  may  thus  notice  that  a  genus  is  not  to  be  characterised 
by  any  single  organ,  but  rather  by  the  sum  of  the  differences  found  in  all 
its  parts. 


28 

The  second  genus  in  this  small  but  natural  family  of  4  species  is  the 
monotypic  Calomnium  from  New  Zealand,  which,  although  gymnostomous, 
and  with  a  dimidiate  calyptra,  agrees  so  closely  in  habit  and  structure 
of  leaf  with  our  Georgia  pellucida,  that  its  place  in  this  family  ought  to  be 
at  once  apparent,  yet  Lindberg  appears  to  be  the  only  author  who  has 
noticed  its  true  affinity;  see  his  remarks  in  Act.  Soc.  scient.  fenn.  X, 
p.  240  (1872). 

GEORGIA.     EHRHART. 

(Hannov.  Mag.  1780,  p.  932). 

Plants  caespitose,  tall,  erect,  or  very  small  with  long  radical 
linear  leaves  or  flagelliform  leafy  branches.  Lower  leaves  small, 
upper  much  larger,  ovato-lanceolate,  areolation  hexagono-rotundate, 
at  base  laxer  and  linear-rectangular.  Calyptra  mitriform,  plicate, 
sulcate,  covering  greater  part  of  capsule.  Capsule  cylindraceous  or 
oval,  leptodermous,  on  a  long  pedicel ;  operculum  conical ;  peristome 
arising  below  the  mouth,  teeth  4,  lanceolate  in  outline,  striate  at 
back,  rufous.  Spores  smooth,  green  or  yellow.  Growing  on  the 
ground,  on  rotten  wood,  or  on  sandstone  rocks. 


Sect.  i.      TETRAPHIS.     HEDW. 

Plants  taller,  slender,  caespitose,  the  leaves  increasing  in  length 
upwards ;  primordial  frondiform  leaves,  present  only  in  the  early  state 
of  the  plant,  then  vanishing.  Capsule  cylindric. 

i.     GEORGIA    PELLUCIDA  (L.)     Rabenh. 

AutBaroicous ;  cauline  leaves  in  3  or  5  rows,  ovato-lanceolate,  acute, 
nerve  vanishing  below  apex,  capsule  cylindric,  on  a  straight,  smooth 
seta.  (T.  IV  A). 

SYN. — Mnium  minus  non  ramosum  angustioribus  et  pellucidis  foliis  DILL,  in  RAY  Syn.  st.  brit. 
3  ed.  78  (1724). 

Mnium  Serpylli  foliis  tenuibus  pellucidis  DILL.  Hist.  Muse.  232.  n.  2,  t.  31,  f.  2,  excl.  A 
(1741) ;  et  Herbar. 

Mnium  pellucidum  L.  Sp.  pi.  ii,  nog,  n.  i  (1753) ;  et  Fl.  suec.  968.     HUDS.  Fl.  angl.  402 

(1762).     HALL.  Hist.  st.  Helv.  iii,  56,  t.  45,  f.  8  (1768).     WEISS  Crypt.  Gott.  162  (1770). 

NECK.  Meth.  muse.  233   (1771).     WITH.  Bot.  arr.  Br.  Veg.  ii,  663,  i  (1776).     LIGHTF. 

Fl.  Scot.  11,  705  (1777).     L.  FIL.  Meth.  muse.  363  (1781).     RELH.  Fl.  cant.  398  (1785). 

SCHMID.  Ic.  pi.  rar.  2  ed.  i,  13,  t.  3  (1793).     HULL.  Br.  Fl.  249  (1799). 
Bryum  diaphanum  WEB.  Spic.  Fl.  gott.  121  (1778).     VILL.  PI.  Dauph.  iii,  873  (1789). 

Georgia  Mnemosynum  EHRH.  in  Hann.  Mag.  1780,  932 ;  et  Beitr.  i,  188  (1787).  C.  MUELL. 
Syn.  muse,  i,  182  (1849). 

Tetraphis  pellucida  HEDW.  Fund.  muse,  ii,  88,  t.  vii,  f.  32  (1782) ;  Sp.  muse.  45,  t.  7, 
f.  i  a— f  (1801).  ROTH.  Fl.  Germ.  tent,  i,  454,  et  iii,  P.  I,  132  (1788).  BRID.  muse, 
rec.  n  P.  I,  48  (1792) ;  Sp.  muse.  I,  83  (1806) ;  Mant.  muse.  26  (1819) ;  Bry.  univ.  i,  134 
(1826).  SIBTH.  Fl.  Oxon.  275  (1794).  ROHL.  Deutsch.  Fl.  41  (1794)  ;  Moosg.  Deuts. 
87  (1800) ;  Ann.  Wett.  Ges.  ii,  79.  HOFFM.  Deutsch.  Fl.  ii,  30  (1796).  SWARTZ  Muse. 


29 

suec.  21  (1798).  SMITH  Eng.  Bot.  t.  1020  (1802);  Fl.  brit.  iii,  1179  (1804).  STURM 
Deutsch.  Fl.  ii,  2  (1803).  LA  MRK.  CAND.  Fl.  Fr.  {.449  (1805).  Fl.  Dan.  1.300  ett.  1412. 
P.  BEAUV.  Prodr.  90  (1805).  SCHULTZ  Fl.  starg.  281  (1806),  WEB.  MOHR  Bot.  Tasch. 
93  (1807).  SCHKUHR  Deutsch.  moos.  52,  t.  13  (1810).  MOUG.  and  NEST.  St.  Crypt, 
n.  14.  SCHWAEG.  Suppl.  I,  P.  i,  39  (1811);  et  III,  P.  i,  t.  232  (1828).  WAHLEN.  Fl. 
lapp.  305  (1812);  Fl.  carpat.  334  (1814).  HOOK.  Fl.  Lond.  n.  s.  t.  go  (1816) ;  Fl.  Scot. 
P.  2,  124  (1821) ;  Br.  Fl.  ii,  14  (1833).  SAVI  Bot.  etrusc.  iii,  39  (1818).  HOOK.  TAY. 
Muse.  br.  16,  t.  8  (1818).  GRAY  Nat.  arr.  Br.  PI.  717  (1821).  HARTM.  Sk.  Fl.  HUEB. 
Muse.  Germ.  72  (1833).  MACKAY  Fl.  Hib.  P.  2,  12  (1836).  DE  NOT.  Syll.  muse.  262 
(1838);  Epil.  Briol.  Ital.  725  (1869).  FIOR.  MAZ.  Bry.  rom.  2  ed.  5  (1841),  SCHIMP. 
Bry.  Eur.  iii,  mon.  6,  t.  i  (1843) ;  Syn.  muse.  282  (1860)  ;  et  2  ed.  349  (1876).  WILS. 
Bry.  brit.  196,  t.  8  (1855).  JENS.  Bry.  dan.  t.  3,  f.  16  (1856).  SULL.  Moss.  Un.  St.  30 
(1856).  BERK.  Handb.  br.  m.  216,  PI.  19,  f.  8  (1863).  MILDE  Bry.  Siles.  244  (1869). 
HOBK.  Syn.  br.  m.  98  (1873). 

Bryum  pellucidum  ABBOT  Fl.  bedf.  237  (1798). 
Tetraphis  oblonga  TURN.  Muse.  bib.  12  (1804). 
Tetr.  cylindrica  VOIT  Muse,  herbip.  17  (1812).  FUNCK  Moostasch.  g,  t.  6  (1821). 

Georgia  pcllucida  RABENH.  Deutsch.  Krypt.  Fl.  ii,  P.  3,  231  (1848).  SPRUCE  in  Tr.  Bot. 
Soc.  Edinb.  iii,  153  (1849)  ;  et  in  Ann.  Mag.  N.  hist.  2  ser.  iii,  359  (1849).  LINDB.  in 
Ofv.  V.  Ak.  Forh.  XX,  399  (1863),  et  in  Bot.  ur  Sallsk.  Fn.  et  Fl.  fenn.  IX,  150  (1867). 

AutBsroicous.  Plants  rather  densely  caespitose,  erect;  bright  green 
above,  reddish  brown  below.  Stems  of  two  kinds,  i.  fertile, — having 
leaves  in  3  ranks,  crowded,  ovato-lanceolate,  becoming  5  ranked  and 
enlarging  into  a  coma ;  2.  gonidiiferous, — with  leaves  in  3  ranks,  and 
more  distant,  two  in  nearly  opposite  rows,  the  third  smaller  and 
anterior,  the  gemmae  lentiform,  in  a  cuplike  involucre  of  4-5  reniform 
leaves,  terminating  the  stem. 

Fertile  stem  flexuose,  i-i  in.  high,  erect,  simple  or  dichotomous, 
radiculose  at  base,  pale  red.  Lower  leaves  very  small,  remote,  erect, 
appressed,  broadly  lanceolate,  rufous  ;  upper  much  larger,  ovato- 
lanceolate,  patent,  entire,  nerve  vanishing  below  the  point ;  peri- 
chaetial  bracts  sheathing,  lanceolate,  elongated,  rather  obtuse.  Cells 
roundish  hexagonal  above,  elongated  rectangular  at  base.  Capsule 
erect,  on  a  straight,  smooth,  purple  pedicel,  elongated,  cylindric, 
pale  brown,  with  the  mouth  red ;  calyptra  reaching  to  middle  of 
capsule,  whitish,  rust  colored  at  apex,  mitriform,  sublacerate  at  base, 
irregularly  plicate,  with  about  8  or  9  ridges,  which  run  out  into 
serrate  crests  at  apex ;  annulus  none ;  operculum  thin,  conical, 
straight  or  oblique;  peristome  of  4  erect,  brown,  pyramidal  teeth, 
connivent  when  moist,  triquetrous,  rigid,  not  articulated,  but  longi- 
tudinally striate  at  back ;  columella  slender,  cylindric ;  spores  very 
small,  smooth,  green.  Male  inflorescence  at  the  apex  of  special 
shoots,  which  arise  in  pairs  from  a  sterile  female  inflorescence;  bracts 
6-10,  ovato-lanceolate,  nerved. 

Gemmiferous  stem  with  lax  leaves,  very  small  and  distant  below, 
those  about  the  middle  being  the  largest,  obovate,  apiculate,  with 
the  nerve  vanishing  below  apex,  then  decreasing  in  size  toward  the 


30 

top ;  areolation  uniform,  hexagonal ;  cup  of  3-4  obcordate,  obsoletely 
nerved  bracts,  enclosing  many  flattened  lenticular,  stalked  gemmae, 
intermixed  with  paraphyses,  these  gemmae  are  altered  antheridia,  as 
the  cups  often  arise  in  pairs  just  as  the  perfect  males  do. 
Occasionally  also  a  gemmiferous  shoot  may  be  found  growing  from 
a  female  inflorescence. 
HAB. — Damp,  shady  rocks,  rotten  stumps  of  trees,  decayed  palings,  and 

on  turfy  banks  on  heaths,  not  uncommon.     Fr.   7-9.     Plentiful  about 

Killarney,    but    otherwise    rather  scarce  in    Ireland,  as  it  also  is   in 

Cornwall. 

This  beautiful  moss  is  widely  distributed,  and  in  North  America 
besides  the  ordinary  form,  a  variety  (cuvvata  Lindb.}  is  common,  having  a 
narrower,  curved  capsule.  The  leaves  vary  much  in  size,  as  well  as  in 
density  of  arrangement,  and  we  have  seen  stems  of  the  gemmiferous 
plant,  having  them  almost  circular.  It  is  also  not  uncommon  to  find 
gemmae,  which  have  dropped  from  the  cups,  entangled  among  the  leaves 
and  attached  to  the  stem  by  radicles  they  have  thrown  out.  The  second 
species — G.  geniculata  GIRGENS. — is  a  native  of  Japan  and  N.  West 
America,  and  differs  from  the  European  species  chiefly  in  the  seta, 
which  is  suddenly  bent  about  the  middle  to  an  obtuse  angle,  and  roughly 
tuberculate  above  the  bend. 


Sect.  2.     TETRODONTIUM.     SCHW^G. 

Plants  very  small,  gregarious,  simple,  having  the  long  frondiform 
leaves,  permanent  or  vanishing,  or  sometimes  with  lateral  flagelliform 
ramuli,  bearing  very  minute  imbricated  leaves ;  capsule  oval. 

2.     GEORGIA  BROWNII.     (Dicks.)     C.  Muell. 

Autoicous  ;  plants  dwarf,  gregarious,  the  stem  with  or  without 
flagelliform  ramuli,  the  perichaetial  bracts  ovate,  acuminate,  nerved 
half-way;  capsule  oval;  lid  conic,  oblique.  (T.  IV.  B.) 

SYN.— Bryum  Brownianum  DICKS.  PL  crypt.  Brit.  fasc.  IV,  7,  t.  10,  fig  16  (1801).     BRID.  Muse. 

rec.  n,  P.  Ill,  62  (1803).     TURNER  in  KOJN.  and  SIMS  Ann.  Bot.  II,  197  (1806). 

Tctraphis  ovata  FUNCK  in  HOPP.  Bot.  Tasch.   1802,  41,  et  in  Reg.  hot.  Zeit.   1802,  120. 

HOPP    m  STURM  Deutschl.  Fl.  ii,  Heft  6  (1803).     SPRENG.  Einl.  275,  t.  6,  f.  52  (1804). 

BRID.  Sp.  Muse,  i,  84  (1806) ;    Mant.  muse.  26  (1819) ;    Bry.  univ.  i,  131   (1826).     WEB. 


Bot.  Tasch.  95  (1807).  SCHKUHR  Deutsch.  krypt.  Gew.  ii,  33,  t.  13  (1810). 
SCHW.EGR.  Suppl.  I,  P.  I,  3g,  t.  I3  (l8ll).  RQHL-  in  Ann>  Wett>  Ges  Hi)  88  (l8r2)- 
Sw.  Summ.  Veg.  Scand.  38  (1814).  WALLM.  in  LILJEBL.  Sv.  Fl.  3  ed.  529  (1816). 
HOOK  Fl.  Lond.  n.  s.  t.  114  (1817) ;  Fl.  Scot.  P.  2,  124  (1821).  SMITH  Comp.  Fl.  Brit. 
3  ed.  163  (1818).  HK.  TAY.  Muse.  brit.  17,  t.  8  (1818).  HARTM,  Sk.  Fl,  1-4  ed.  (1820-43). 
GRAY  Nat  Arr.  Br.  PI.  i,  717  (l82I).  W.-ARN'  in  Mem.  Soc.  d'Hist.  nat.  Par.  ii,  262 
(1825).  NEES  HSCH.  ST.  Bry.  germ,  ii,  P.  I,  5,  t.  13,  fig.  1.2  (1827).  WALLR.  Fl.  crypt. 
Germ  I,  117  (1831).  HUEBEN.  Muse.  Germ.  73  (1833).  AONGST.  Disp.  muse.  Scand.  14 


31 

Tetraphis  rigida  HED.  FIL.  Obs.  hot.  i,  7,  T.  I  (1802).     WAHLENB.  Fl.  suec.  ii,  770  (1826). 

SWARTZ  Adnot.  hot.  82  (1829).     MYRIN  in  W.  Ak.  Handl.  1831,  p.  261. 
Orthotrichum  Brownianum  SM.  Fl.  Brit,  iii,  1269  (1804).     BRID.  Sp.  Muse.  P.  2,  n   (1812). 
Grimmia  Browniana  TURN.  op.  c.  i,  522,  in  nota  (1805).     SM.  Eng.  Bot.  t.  1422  (1805). 
Tetraphis  Browniana  GREV.  Fl.  Edin.  230  (1824)  ;    Scot.  Crypt.  Fl.  iii,  t.  169  (1826).     W.- 

ARN.  1.  c.     BRID.  Bry.  univ.  i,  133  (1826).     HOOK.  T.  op.  c.  2  ed.  33    (1827).     N.  H.  ST. 

op.  c.  9.     WALLR.  op.  c.  118.     HUEBEN.  op.  c.  74.     DUBY  Bot.  gall,  ii,  577  (1830). 

HOOK.  Br.  Fl.  ii,  14  (1833).     MACKAY  Fl.  Hib.  P.  2,  12  (1836).     HAMPE  in  Regens.  bot. 

Zeit.  XX,  P.  i,  280,  n.  i.  cum  Var.  ovata  (1837).     HARTM.  op.  c.  5-9  edd.  (1849-64). 
Tetrodont'nim  Brownianum  SCHWGN.  op.  cit.  ii,  P.  I,  102,  t.  129  (1824).     MOUG.  NEST.  St. 

Cr.  n.  811.     BR.   SCHIMP.  Bry.  Eur.  iii,  Mon.  4,  t.  2  (1843).     AONGSTR.  in  FR.   Summ. 


Veg.  Sc.  i,  92  (1846).     WILS.   Bry.  brit.  197,  t.  8  (1855).     SCHIMP.  Synops.  283   (1860)  ; 

51  (1876).     BERK.  Handb. 
(1869).     HOBK.  Syn.  Br.  M.  99  (1873). 


et  2  ed.  351  (1876).     BERK.  Handb.  Br.  M.  216,  t.  19,  f.  7  (1863).     MILDE  Bry.  Siles.  245 


Tetrodontium  ovatum  SCHWGN.  op.  c.  ii,  P.  I,  102. 

Georgia  Browniana  C.  MUELL.  Syn.  i,  181  (1848).  RABENH.  Deutsch.  Krypt.  Fl.  ii,  P.  3, 
231  (1848).  SPRUCE  Trans.  Bot.  Soc.  Edin.  iii,  153  (1849)  ;  et  Ann.  Mag.  N.  Hist.  2 
Ser.  iii,  359  (1849).  LINDB.  in  Not.  ur  Sallsk.  Fn.  et  Fl.  fenn.  151  (1867). 

Tetrodontium  varium  a.  foliatum  et  B.  frondiferum  LINDB.  in  Ofr.  V.  Ak.  Forh.  XX,  414 
(1863). 

Autoicous  ;  plants  very  small,  simple,  gregarious,  radiculose  at  base, 
with  very  short  decumbent  stems,  bearing  the  terminal  inflorescence. 
Radical  frondiform  leaves  long,  linear-cuneate  or  somewhat  palmate 
at  apex,  of  2-3  layers  of  cells;  or  else  bearing  flagelliform  branches 
covered  with  lanceolate,  entire,  nerveless  leaves. 

Perichsetial  bracts  numerous,  imbricated,  outer  much  smaller, 
all  ovato-lanceolate,  faintly  nerved  at  base,  entire,  the  cells  oval, 
capsule  solitary,  on  a  rigid  purple  pedicel,  erect,  oval,  symmetric, 
firm,  olive-brown,  becoming  blackish  by  age  ;  calyptra  covering  all 
the  capsule,  glossy  reddish-brown,  more  deeply  slit,  unequally  plicate  ; 
operculum  one-third  length  of  capsule,  dull  yellow,  conic  or  rostellate  ; 
mouth  of  capsule  exannulate,  more  or  less  emarginate  opposite  the 
interspaces  between  the  teeth  ;  teeth  shorter  and  broader  than  in 
G  .  pellucida  ;  spores  greenish-yellow.  Male  infl.  gemmiform,  the  bracts 
fewer,  oval,  pointed,  nerveless,  paraphyses  short. 

HAB.  —  Sandstone  and   gritstone   rocks,   not   very   uncommon    in    Scotland, 
N.  of  England,  and  Ireland.     Fr.  7. 

On  rocks  by  the  river  at  Rosslin,  Edinburgh  (Brown).  Bilston  burn  (Maughan).  Kirk- 
caldy  (Chalmers).  Arniston  and  Auchindenny  woods  (Greville  and  Arnott).  Rae  hills 
woods,  Dumfries  (Jardine). 

Common  in  Yorkshire  as  at  Keb  Clough,  Todmorden  (Nowcll  1848)  !  !  Rig?  mill  and 
Goathland  beck,  Whitby  (Braithwaite)\\  Cronkley  gill  (Spruce]  \  Healy  hall, 
Rochdale  (Hobson).  Ripon  (Brunton).  Dene  at  Twizell  House,  Berwick  (Greville), 
and  Lyham  Dene  (Boyd).  Cornwood  cascade  and  Fox-tor,  Devon  (Holmes).  Hays 
wood,  Meavy  (Fl.  dev.).  Ardingly,  Sussex  (Davies). 

Ircl.—Hea.d  of  Kelly's  glen,  Dublin,  and  near  Ballycastle,  Antrim  (Moore  1835).  Lough 
Bray  (Fl.  Hib.). 

Tetraphis  ovata,  FUNCK  is  a  state  in  which  the  radical  frondiform  leaves 
are  short  or  altogether  wanting. 

Tetraphis  repanda  FUNCK  is  only  a  variety  of  G.  Brownii,  having  the 
mouth  of  capsule  slightly  more  emarginate,  and  sending  from  the  roots 


32 

flagelliform  ramuli  with  densely  imbricated,  nerveless  ovato-lanceolate 
leaves ;  so  far  as  we  know  it  has  not  been  detected  in  this  country. 

Georgia  Brownii  most  frequently  occurs  on  the  upper  surface  of  hori- 
zontal fissures  in  sandstone  rocks,  and  then  the  capsule  is  of  course  the 
lowest  part ;  when  found  on  the  upright  faces  of  rocks  the  seta  stands  out 
horizontally  or  curves  gently  upwards.  Creeping  among  the  felt-like  stratum 
may  also  generally  be  found  associated  some  of  the  smaller  liver-mosses,  as 
Diplophyllum  albicans,  &c. 

Lindberg  aptly  compares  the  radical  frondiform  leaves  to  minature 
fronds  of  the  elks-horn  fern  Playty cerium  alcicorne. 


TAB.  IV. 

A.  Georgia  pellucida     (Bexley,  Mr.  George). 

B.  Georgia  Brownii     (Rigg  mill,  Whitby,  Braithwaite}. 


b.    Gemmiferous   plant   mag.     2.    Male   infl. 
4.    Lower  leaf.      5.    Upper  leaf  of  plant  b. 


a.  Perfect  plants,     i.    Fertile  plant   mag. 
3,    Bract,  antheridium  and  paraphyses. 

5  aa.  Areolation  of  apex.  5  ab.  Ditto  of  base.  6.  Perichjetial  bract.  6  aa.  Areolation 
of  apex.  6  ab.  Ditto  of  base.  7.  Cup  with  one  of  its  bracts.  8.  Lentiform  gemma  and 
paraphyses.  g.  Frondiform  leaves.  10.  Apex  of  same  more  mag.  n.  Calyptra. 
12.  Apex  of  same  more  mag.  13.  Operculum.  14.  Mouth  of  capsule  and  peristome. 
15.  Single  tooth  of  same.  16.  Transverse  section  of  half  of  operculum  and  peristome. 


•Mbss.Fl. 


GEORGIACE^E. 


TIV 


Georgia    pelkicida. 


Q.ab. 


6. a  a. 


Georgia  brownii. 


dfi.  ad  not.  I).  Blair  Uth. 


MinternJiro's  imp. 


POLYTRICHACE.E 


NOVEMBER  IST,  1880. 


CATHARINEA  EHRH. 

1.  C.  angustata  Brid. 

2.  —  undulata  (L.)    Web.Mohr. 

3.  —  crispa  James. 

OLIGOTRICHUM  LAM.  DEC. 
1.     0.  incurvum  (Huds.)  Lindb. 

POLYTRICHUM  DILL.  L. 

1.  P.  subrotundum  Huds. 

2.  —  aloides  Hedw. 

3.  —  urnigerum  L. 

4.  —  alpinum  L. 

5.  —  sexangulare  Floerke. 

6.  —  gracile  Dicks. 

7.  —  attenuatum  Mem. 

8.  —  piliferum  Schreb. 

9.  — juniperiuum  Willd. 

10.  —  strictum  Banks. 

11.  —  commune  L. 


Fam.  4.     POLYTRICHACE^E. 

Mosses  variable  in  size  and  habit ;  sometimes  short  and  simple, 
sometimes  very  tall,  dendroid  and  branched,  with  the  stem  highly 
developed,  having  a  central  woody  axis. 

Innovations  basal,  or  in  the  male  plants  the  axis  is  continued 
from  the  centre  of  the  inflorescence.  Leaves  firm  and  rigid,  the  nerve 
generally  expanded  and  bearing  on  the  upper  surface  a  variable 
number  of  more  or  less  developed  vertical  lamellae,  which  vanish 
toward  the  sheathing  base  of  the  leaf;  the  margin  usually  serrate,  the 
cells  of  the  non-lamellose  part  mnioid. 

Inflorescence  almost  always  dioicous,  the  male  discoid  with  the 
bracts  often  coloured. 

Calyptra  cucullate,  naked  or  spinulose  or  with  a  few  hairs,  or 
most  frequently  covered  with  long  villose  pendent  hairs.  Capsule 
on  a  long  wiry  pedicel,  terete  or  angular  or  rarely  depressed,  with 
stomata  frequently  present  in  the  cuticle. 

Peristome  of  32  or  64  erect,  solid,  linguiform  teeth,  united  at 
apex  to  the  discoidal  dilated  extremity  of  the  columella  (the  epiphragm 
or  tympanum)  ;  sometimes  broken  up  into  a  pencil  of  cilia ;  very  rarely 
none.  Inhabiting  the  ground,  especially  on  moorlands,  and  often 
occupying  extensive  tracts. 

This  great  family  of  200  or  more  species,  is  a  most  natural  one, 
approaching  the  Mniaceae  in  some  points,  but  yet  possessed  of  characters 
quite  peculiar ;  notably  the  solid  tongue-shaped  teeth,  the  membranous 
dilated  discoid  top  of  the  columella,  the  lamelligerous  leaves,  and  the 
densely  pilose  calyptra.  By  the  well-developed  fibre-vascular  cells  forming 
a  woody  axis  to  the  stem,  and  the  noble  tree  like  habit  of  some  exotic 
forms,  we  may  perhaps  regard  them  as  standing  at  the  head  of  all  mosses. 

The  structure  of  the  peristomial  teeth  is  well  worth  a  careful  examina- 
tion, as  it  differs  from  that  of  all  other  mosses.  Each  tooth  consists  of 
several  layers  of  fine  threads,  held  together  by  cellular  material,  and  we 
can  trace  each  thread  down  from  the  apex  of  one  tooth,  through  the  basal 
membrane,  and  up  again  to  the  apex  of  the  adjacent  tooth,  those  in  the 
axial  line  being  more  condensed.  The  basal  membrane  is  a  continuation 
of  the  lining  of  the  capsule  (endothecal  membrane),  and  consists  of  several 
rows  of  thick-walled  rectangular  cells. 

Prof.  Schimper  divides  the  Polytrichaceae  into  three  sub-families : 
i.  Polytricheae,  comprising  nearly  all  the  species.  2.  Lyellieae,  for  the 
genus  Lyellia,  containing  two  East  Indian  species,  remarkable  for  the 
absence  of  peristome,  though  with  a  button  shaped  epiphragm  closing  the 
mouth  of  the  capsule.  3.  Dawsonieae,  including  the  Australian  genus 
Dawsonia  of  4  species,  among  which  stands  D.  superba,  one  of  the  most 


POLYTRICHACE.E.]  3& 

beautiful  of  known  mosses ;  here  both  the  peristome  and  endostome  are 
broken  up  into  a  brush-like  tuft  of  cilia,  and  there  is  no  epiphragm.  In 
both  these  genera  we  recognise  a  certain  affinity  to  Buxbawnia  by  the 
depressed,  ovate  and  somewhat  irregular  capsule,  and  again  the  scabrous 
seta  of  Buxbaumia  is  represented  in  the  Malayan  Racelopus,  a  feature  quite 
exceptional  in  this  family,  where  it  is  usually  polished  and  wiry.  Lindberg's 
paper  "  Observations  de  forms  presertim  europais  Polytrichoideamm,"  in  Notis.  ur 
Siillsk.  pro  Fn.  et  Fl.  fenn.  forh.  ix,  p.  91  (1867),  is  perhaps  the  most  perfect 
example  of  a  botanical  dissertation  which  has  ever  come  before  us. 

In  this  a  very  curious  relation  existing  between  the  peristome  and 
epiphragm  is  pointed  out  and  used  to  divide  the  genus  Polytrichum  into  two 
sections  Pterygodon  and  Leiodon,  but  as  the  parts  are  very  minute  and  would 
offer  difficulties  to  students  in  their  examination,  we  have  preferred  the  older 
divisions  of  C.  Mueller. 

A  part  of  this  beautiful  combination  was  first  accurately  made  known 
by  our  celebrated  countryman  Richard  Spruce  in  his  paper  on  "  The  Mosses 
and  Hepatica  of  the  Pyrenees,"  in  Trans.  Bot.  Soc.  of  Edinburgh,  iii,  162  (1849)  ; 
and  as  these  structures  are  so  important,  it  may  be  of  interest  to  quote  the 
descriptions  of  both  authors. 

Spruce  says, — "  In  Polytrichum  alpinum  the  epiphragm  is  originally  placed 
at  the  base  of  the  teeth,  to  which  it  is  attached  by  means  of  processes  equal 
to  them  in  number,  and  exactly  covering  their  internal  face.  After  the  fall 
of  the  lid,  these  processes  are  gradually  detached,  and  the  epiphragm  rises, 
probably  from  the  pressure  of  the  full-grown  spores  beneath  it,  so  as  to  allow 
the  latter  to  escape  through  the  interstices  of  the  peristome.  When  the 
epiphragm  is  quite  liberated,  the  processes  curve  inward  upon  its  upper 
surface,  so  as  to  be  with  difficulty  seen,  unless  the  light  be  properly  regulated, 
or  the  epiphragm  be  set  up  on  its  edge.  The  adhesion  of  the  epiphragm  to 
the  teeth  is  so  great  as  to  resist  the  action  of  the  columella  to  draw  it  down 
into  the  capsule,  and  often  ultimately  to  cause  the  columella  to  rupture." 

Lindberg's  description  is  as  follows, — "  In  the  Polytrichacea  the  teeth 
are  incurved  and  in  transverse  section  triangular,  especially  at  the  base  ;  the 
inner  surface  of  the  teeth  is  elevated  in  the  middle  into  a  longitudinal  crest, 
which  is  composed  of  the  innermost  cells  of  the  basal  membrane  not  reaching 
the  apex  of  the  tooth.  The  apices  of  these  cells  in  the  subgenus  Pterygodon 
are  not  united  to  the  teeth,  but  inflexed,  free  or  irregularly  connected  with 
each  other,  and  form  wings,  compressed  at  the  sides,  and  resembling  stag's 
horns.  These  wings  are  formed  both  from  the  basal  membrane  itself,  and 
the  lower  part  of  the  crests  of  the  teeth,  and  are  somewhat  coloured  or 
hyaline;  they  enclose  chambers  of  the  same  number  as  the  teeth,  in  the 
mouth  of  the  capsule,  the  fundus  of  which  is  formed  by  the  basal  membrane, 
the  walls  by  the  teeth  and  their  wings,  and  the  roof  by  the  epiphragm  ;  these 
spaces  are  fenestrae  for  the  exit  of  the  spores,  when  the  spore  sac  finally 
bursts  at  apex.  The  species  referred  to  Pterygodon  are  P.  commune,  juniperinum, 
strictum  and  piliferum,  and  in  these  also  the  epiphragm  is  thin,  flat  and  strictly 
contained  between  the  apices  of  the  peristome,  to  which  it  closely  adheres  by 
the  margin.  From  its  lower  surface  and  within  the  margin,  hang  down 
sacculi  or  nipple— like  processes,  closing  the  upper  part  of  the  interdental 
spaces,  almost  to  the  middle  of  the  teeth,  and  as  many  in  number  as  the 


POLYTRICHACE.E.]  37  [Catharinea. 

interspaces.  In  the  young  state,  these  mamillae  reach  down  to  the  basal 
membrane,  but  in  the  mature  fruit  contract  by  drying,  and  the  spore  sac  also 
rupturing,  through  these  apertures,  as  in  the  fruit  of  Papaver  and  Campanula, 
the  spores  escape.  The  remaining  species  form  the  subgenus  Leiodon  and  in 
this  as  well  as  in  Catharinea  and  Oligotrichum  the  wing-like  crest  is  wanting,  the 
epiphragm  is  thick,  concave,  and  generally  somewhat  hollowed  in  the  centre, 
the  margin  toothed  with  thin  processes  curved  upward  and  inward,  and 
closely  fixed  to  the  upper  part  of  the  teeth,  which  they  resemble  in  structure. 
For  this  reason  the  epiphragm  is  not  strictly  contained  within  the  apices  of 
the  peristome,  but  hangs  down  from  them  for  the  length  of  the  dentiform 
processes,  connate  with  the  highest  part  of  peristome.  Mamillae  are  also 
absent  from  the  under  surface,  and  the  spores  are  much  larger." 

The  leaves  of  Polytrichaceae,  except  in  Catharinea  and  Racelopus,  are 
thick  and  opake,  from  the  presence  on  the  upper  surface  of  numerous  longi- 
tudinal lamellae,  and  the  number  and  structure  of  these  lamellae,  as  seen  in 
transverse  section,  are  as  Prof.  Lindberg  points  out,  of  the  greatest  import- 
ance for  a  proper  discrimination  of  the  species,  especially  in  the  barren  state  ; 
the  cells  forming  their  free  margin  are  particularly  to  be  noted,  as  they  vary 
considerably  in  different  species. 

In  Catharinea  the  lamellae  are  few  and  confined  to  the  nerve,  and  are 
chlorophyllose  like  the  leaf  lamina,  but  in  Polytrichum  the  lamellae  alone 
have  chlorophyllose  cells. 

Pogonatum  is  not  separable  from  Polytrichum  as  a  natural  genus,  for 
in  a  large  proportion  of  species  referred  to  Pogonatum  (forming  the  section 
Anasmogonium  MITT.),  the  capsule  is  6 — 8  plicate,  while  in  some  Polytricha 
the  angles  of  the  capsule  are  almost  obsolete. 

It  may  be  noted  that  Pol.  commune  is  one  of  the  few  mosses  which  have 
been  put  to  economic  purposes.  Linnaeus  tells  us  that  the  Laplanders  use 
it  for  beds,  and  commends  it  as  not  harbouring  fleas  or  any  infectious  disease  ; 
in  the  north  of  England  it  is  also  made  into  small  dusting  brooms  and  mats. 

i.     CATHARINEA  EHRHART. 

(Hannov.  Mag.  1780,  59  Stuck,  p.  933  ;  et  Beitr.  i.,  pp.  126  et  178  (1787). 

Plants  mnioid,  gregarious  or  ccespitose,  throwing  up  erect  stems 
from  a  creeping,  subterranean  rhizome.  Leaves  Ungulate  or  oblong, 
generally  undulated,  crisped  when  dry  ;  bordered  and  serrate  at  margin  ; 
the  nerve  with  few  lamella?  ;  areolation  chlorophyllose,  rounded — 
hexagonal.  Calyptra  narrow,  cucullate,  spinulose  only  at  apex. 
Capsule  oval  or  cylindric,  subarcuate  ;  annulus  none  ;  lid  convex,  long- 
beaked  ;  teeth  of  peristome  32,  lingulate,  rigid,  with  a  narrow  basal 
membrane  ;  sporangium  close  to  the  wall  of  capsule  ;  spores  minute, 
smooth.  Inflorescence  usually  dioicous ;  the  male  cup-like,  with 
numerous  bracts  and  filiform  paraphyses. 

This  genus  was  founded  by  Ehrhart  in  honour  of  Catharine  II.  Empress 
of  Russia,  and  for  the  reasons  stated  under  Georgia,  yet  Schimper  displaces  it 


POLYTRICHACE^.]  38  [Cathariwa. 

for  the  much  later  name  of  P.  Beauvois,  and  then  absurdly  confers  Ehrhart's 
name  on  Pol.  dendroides  BRID.  and  squamosum  HOOK.  WILS.  both  unknown  to 
Ehrhart. 

The  genus  includes  some  25  species,  the  majority  of  which  are  natives 
of  South  America,  and  closely  approximate  in  habit.  One  other  species 
(C.  tenella  ROHL.)  is  European,  and  has  been  several  times  recorded  as 
British,  but  I  have  not  seen  any  genuine  native  specimens. 

C.  undulata,  although  so  common,  is  a  most  elegant  moss,  and  is  certain 
to  be  among  those  that  first  attract  the  notice  of  a  young  collector. 

CLAVIS  TO  THE  SPECIES. 

Leaves  Ungulate,  undulated. 

Dioicous.     Leaves  with  obtuse  points,  densely  areolate,  margin  serrate  only  in  upper  half. 

C.  angustata. 
Paroicous.     Leaves  with  acute  points,  more  laxly  areolate,  margin  serrate  throughout. 

C.  undulata. 
Leaves  oblongo-lanceolate,  not  undulated. 

C.  crispa. 


i.     CATHARINEA    ANGUSTATA  Bnd. 

Dioicous.  Leaves  shorter,  narrowly  lanceolate,  obtusely  pointed, 
more  minutely  areolate,  serrate  only  above  the  middle  ;  lamellae  higher 
and  more  numerous.  Capsule  erect,  slender  cylindric ;  lid  with  a 
shorter  beak.  (T.  V,  A.) 

SYN. — Bryum  Juniperi  foliis  rugosis,  capsulis  rcctioribus  DILL.  Hist.  muse.   362,  n.  19,  t.  46, 
fig.  19  (1741),  et  Herb. 

Polytrichum  nndulatum  var.  minus  MICHX.  Fl.  bor.-amer.  ii,  295  (1803).     BALS.  DE  NOT. 

Prodr.  bryol.  mediol.  25  (1834). 

Atrichum  controversum  P.  BEAUV.  Prodr.  42,  excl.  syn.  (1805). 
Pol.  angustatum   BRID.  Sp.  muse,  i,  79  (1806).     SCHWAEGR.  Suppl.  i,  P.  II,  331  (1816). 

HOOK.  muse.  exot.  i,  t.  50  (1818).      SCHULTZ  Suppl.  Fl.  Starg.  88  (1819).     WALLR.  Fl. 

cr.  germ,  i,  195  (1831).     DE  NOT.  Syll.  muse.  215  (1838). 

Pol.  cylindricum   SVVARTZ   in   MUEHL.  Catal.  pi.   amer.   sept.  99  (1813),  et  Adnot.  hot. 

171  (1829). 
Catharinca  angustata  BRID.     Mant.  muse.  204  (1819) ;  Bry.  univ.  ii,  105  (1827).     STEUD. 

Nom.  crypt.  101  (1824).     HUEBEN.  Muse.  germ.  519  (1833).     C.  MUELL.  Syn.  muse,  i, 

193   (1849).     HARTM.  Skand.  Fl.     LINDB.  in  Not.  ur  Siillsk.  Fn.  et   Fl.  fenn.  ix,  145 

(1867).     DE  NOT.  Epil.  Briol.  Ital.  344  (1869). 

Pol.  (Oligotrichum)  angustatum  W.-ARN.  in  Mem.  Soc.  d'Hist.  nat.  Paris,  ii,  320  (1825). 
Atrichum  angustatum  BR.  SCHIMP.  Bryol.  eur.  iv,  mon.  9,  t.  3  (1844)  ;  Syn.  muse.  eur.  434 

1860  ,  et  2  ed.  528   (1876).     MILDE   Bry.  siles.  246  (1869).     BERK.  Hand.  Br.  m.  213 
OBK.  Syn.  Br.  m.  100  (1873).     HUSNOT  Mouss.  du  Nord-Ouest  134  (1873). 

Dioicous  ;  gregarious  or  laxly  tufted ;  resembling  C.  undulata  in 
habit,  but  smaller  and  more  slender,  and  of  a  more  obscure  or  reddish 
tint.  Stems  about  i  in.  high,  simple  erect.  Leaves  crowded,  linear- 
lanceolate,  shorter  and  firmer  than  in  C.  undulata,  less  undulated, 
erecto-patent,  more  crisp  when  dry,  less  spinulose  at  back,  more 
densely  and  minutely  areolate  ;  the  apex  somewhat  obtuse,  the  margin 
reflexed  below,  very  narrowly  bordered,  and  serrate  only  in  the  upper 


POLYTRICHACE^.]  39  [Catharinea. 

part ;  lamellae  5 — 7,  much  higher,  and  occupying  most  of  the  apex  of 
leaf,  in  section  each  of  4 — 6  small  rounded  cells.  Capsule  on  a 
purple  seta,  erect  or  a  little  inclined,  straight  or  subarcuate,  narrowly 
cylindric,  purple  red  ;  calyptra  very  narrow,  spinulose  at  point ;  lid 
dark  purple,  glossy,  with  a  shorter  beak  ;  teeth  of  peristome  narrower. 
Male  plants  in  separate  tufts  ;  infl.  cup-shaped,  inner  bracts  broadly 
obovate  with  the  nerve  thickened  at  apex. 
HAB. — Clay  and  sandy  soil  in  shady  places.  Very  rare.  Fr.  n — i. 

Wet  sand  banks  at  Hassocks,  near  Hurstpierpoint,    6*    and  fr.  (Mitten  1846)  !  !     Steep 
stony  pastures  near  Doune,  Perthshire,  c.  fr.  (McK inlay  1864)  ! 

Readily  known  from  C.  imdulata  by  its  slender  habit,  olive-green  tint, 
and  shorter,  blunt-pointed  leaves,  which  are  more  minutely  areolate.  Much 
more  frequent  in  America  than  in  Europe. 

2.   CATHAKINEA   UNDULATA  (L.)   Web.  Mohr. 

Paroicous.  Leaves  increasing  in  size  upward,  lingulato-lanceolate, 
undulate  in  the  upper  half,  acute,  margin  narrowly  bordered  and  dentate 
nearly  to  base;  lamellae  2 — 5,  low.  Capsule  cylindric,  arcuate;  lid 
long-beaked.  (T.  V,  B.) 

SYN. — Adiantum  sen  Polytrichum  aureum  medium   RAY  Hist.  PI.  i,   124  (1686),  et  Syn.  Stirp. 

Brit,  i  ed.  19  (1690). 
MUSCHS  capillaris  mafusculus,  foliis  longis  cum  aliqua  latitudinc,  viridibus,  acutis  rugosis 

RAY  Syn.  2  ed.  29,  n.  6  (1696).     MORIS.  Hist.  pi.  Oxon.  iii,  631,  t.  V,  f.  10  (1698). 
Bryum  erectum,  capitulis  oblongis,  rubentibus,  foliis  oblongis,  angustis  pellucidis  rugosis 

DILL.  Cat.  Giss.  222  (1719),  et  in  Ray  Synops.  3  ed.  95,  n.  15  (1724). 
Bryum  Phyllitidis  folio  rugoso  cicuto,  capsulis  incurvis  DILL.  Hist.  muse.  360,  n.  18 ;  t.  46, 

f.  18  (1741)  et  Herb. 
Bryum  undulatum  L.  Sp.  PI.  ii,  117,  n.  10  (1753),  et  Syst.  nat.  ii,  701.     HUDS.  Fl.  angl. 

406  (1762).     OEDER  Fl.  Dan.  t.  477.     WEISS  Cr.  Gott.  196  (1770).     WITHER.  Bot.  arr. 

Br.  Veg.  ii.  673   (1776).     LIGHTF.  Fl.  Scot,  ii,  722  (1777).     CURT.  Fl.  Lond.  i,  t.  70 

(1778).     WEB.   Spic.   Fl.   gott.   171    (1778).      RELH.   Fl.   cant.  404   (1785).      HOFFM. 

Deutsch.   Fl.   ii.   40,   t.    i    (1796).      ABBOTT    Fl.   bedf.    243    (1798).      HULL    Br.   Fl. 

P.  2,  265  (1799). 

Bryum phyllitidifolium  NECK.  Meth.  muse.  203  (1771)- 
Catharinea   Callibryon   EHRH.    in    Hann.    Mag.    1780,   p.   934,   et   Beitr.   i,    126    (1787). 

C.  MUELL.  Syn.  muse,  i,  192  (1849). 

Mnium  undulatum  SWARTZ  Meth.  muse.  27  (1781).     L.  FIL.  Meth.  muse.  364  (1787). 
Polytrichum  undulatum  HEDW.  Fund,  ii,  go  (1782) ;  Stirp.  cr.  i,  43,  T.  xvi.xvii  (1787)  ; 

Sp.  muse.  98  (1801).     WILLD.  Fl.  berol.  n.  915  (1787).      ROTH  Fl.  germ,  i,  458,  et  iii, 

354  (1788).     TIMM  Fl.  meg.  n.  773  (1788).     SCHRANK  Baier.  Fl.  ii,  448  (1789).     BRID. 

Muse.  rec.  ii,  P.  I,  92  (1792) ;  Sp.  muse.  I,  78  (1806).     SIBTH.  Fl.   Oxon.  307  (1794). 

MOENCH  PI.  marb.  736  (1794).     SWARTZ  Muse.  suec.  78  (1798).     ROHL.  Moosg.  Deuts. 

201  (1800).     RICH,  in  MCHX.  Fl.  bor.  amer.  ii,  295  (1803).     STURM  Deutsch.  Fl.  ii,  2 

(1803).     SMITH  Fl.  Brit,  iii,  1382  (1804) ;  Eng.  Bot.  t.  1220  (1803).     TURN.  Muse.  nib. 

91   (1804).     SCHULTZ  Fl.  starg.  287  (1806).     SCHWAEGR.  Suppl.  I,  P.   2,  300  (1816). 

MART.  Fl.  cr.  erl.  79  (1817).     HOOK.  TAYL.  Muse.  Br.  23,  T.  X  (1818).     GRAY  Nat.  arr. 

Br.  pi.  i,  719  (1821).     HOOK.  Fl,  Scot.  P.  2,  125  (1821) ;  Brit.  Fl.  ii,  48  (1833).     FUNCK 

Moostasch.  70,  t.  57  (1821).    WAHLEN.  Fl.  suec.  741  (1826).     WALLR.  Fl.  cr.  germ,  i, 

195  (1831),     MACKAY  Fl.  hib.  P.  2,  27  (1836).     DE  NOT.  Syll.  muse.  n.  214  (1838). 

FIOR.  MAZ.  Bry.  rom.  2  ed.  28  (1841). 

Callibryum  polytrichoides  WIBEL  Prim.  fl.  Werth.  290  (1799). 
Catharinea    undulata   WEB.    MOHR  Ind.  mus.  pi.  cr.  (1803) ;     Bot.    Tasch.   216  (1807). 

ROHL.  Ann.  Wett.  Ges.  iii,  233  (1814) ;  Deutsch.  Fl.  iii,  61  (1813).     BRID.  Mant.  muse. 

304  (1819)  ;  Bry.  univ.  ii,  102   (1827).     HUEBEN.  Muse.  germ.  517   (1833).     RABENH. 

Deutsch.  Kr.  Fl.  ii,  P.  3,  233  (1848).     LINDB.  in  Not.  ur  Sallsk.  Fn.  et  Fl.  fenn.  ix, 

146  (1867). 


POLYTRICHACE^.]  4°  [Catharinea. 

OHgotrichum  undulatum  LAM.  DE  C.  Fl.  franc.  3  ed.  ii.  492  (1805). 

Atrichurn  undulatum  P.  BEAUV.  Prodr.  42  (1805).     BR.  SCHIMP.  Bry.  eur.  iv,  Mon.  8,  T. 

1-2  (1844)  ;  Syn.  muse.  433  (1860),  et  2  ed.  528  (1876).     WILS.  Bry.  Brit.  203,  t.  x  (1855). 

JENS.  Bry.  dan.  t.  3,  f.  14  (1856).     BERK.  Handb.  Br.  m.  212,  t.  19,  f.  4  (1863).     MILDE 

Bry.  Siles.  246  (1869).     DE  NOT.  Epil.  Briol.  Ital.  343  (1869).     HOBK.  Syn.  br.  m.  100 

(1873).     HUSN.  Mouss.  Nord-Ouest  133  (1873). 
Cath.  Ehrharti   VOIT  Muse,  herbip.  17  (1812). 
Callibryum  undulatum  ZENK.  DIETR.  Muse.  Thur.  n.  41  (1822). 

Paroicous  and  polyoicous  ;  gregarious  in  wide,  bright  green  patches. 
Rhizome  much  branched,  the  roots  twisted  together  like  a  cable  ;  stems 
erect,  i — 3  in.  high,  simple  or  bifid,  nearly  naked  below.  Leaves  rather 
lax,  not  sheathing,  concavo-carinate,  patulous  and  flexuose  when  moist, 
strongly  curled  and  twisted  when  dry  ;  lower  small,  ovate,  scale-like, 
inserted  obliquely,  the  rest  increasing  in  size  to  the  coma,  lanceolate, 
ligulate,  and  linear-elongate,  transversely  undulate  in  the  upper  half, 
with  a  narrow  rufescent  border  of  two  rows  of  narrow  cells,  bearing  for 
greater  part  of  its  length  callose  teeth,  usually  in  pairs,  nerve  vanishing 
in  the  rather  acute  apex,  which  is  beset  with  spinules  at  back  in  trans- 
verse rows ;  cells  rather  large,  rounded  and  subhexagonal ;  lamellae 
3 — 6,  subundulate,  in  section  each  of  4 — 5  nearly  equal  rounded  cells. 
Perichsetial  bracts,  resembling  the  comal  leaves  but  longer  and  narrower. 

Pedicel  as  long  as  stem,  bright-red,  erect,  twisted  to  the  right  in 
upper  part  when  dry,  single  or  in  pairs  ;  capsule  pachydermous,  brown, 
cylindric,  inclined,  arcuate,  with  a  very  short  neck :  lid  from  a  hemi- 
spherical purple  base,  subulato-rostrate,  the  beak  slender,  long  as 
capsule,  straight  or  curved  downward  or  upward  ;  teeth  longish,  orange 
in  the  axis,  basal  membrane  rufescent.  Male  inn.  terminating  the  first 
year's  stem,  the  same  axis  growing  on  and  producing  female  the  next 
year ;  perigone  cup-shaped,  bracts  numerous,  inner  broadly  cuneiform- 
truncate  with  a  crenulate,  recurved  point,  and  thin  nerve. 

HAB. — On  clay  or  sandy  soil  in  woods,  by  the  side  of  paths  and  on  hedge- 
banks.     Common.  Fr.  n — 12. 
Schimper  records  that  occasionally  the  stem  produces  fruit  the  first  year 

without  any  preceding  male  inflorescence. 

Var.  ft.     Minor  (Hedw.)     Web.  Mohr. 

Stem  short ;  leaves  crowded,  shorter,  less  undulated.  Capsule  suberect, 
ovate-oblong,  unequal,  on  a  shorter  pedicel. 

SYN. — Polytrichum  undulatum  var.  ft.  minus  HEDW.  Stirp.  crypt,  i,  43,  t.  17,  f.  14 — 21  (1787), 

et  Sp.  muse.  98.     WAHLENB.  Fl.  lap.  349.     MACKAY  Fl.  hib.  P.  2,  27. 
Pol.  (Catharinea)  controversum  ROHL.  Moosg.  Deutsch.  206. 
OHgotrichum  undulatum  var.  ft.  minus  LAM.  DE  C.  Fl.  franc. 

Cath.undulata  ft.  minor  WEB.  MOHR  Bot,  Tasch.  217.     BRID.  Mant.  muse.  204;  Bry. 
univ.  ii,  104. 

Atr.  undulatum  var.  y.  abbreviatum  Bry.  eur. 

Cath.  undulata  var.  ft.  abbreviata  RABENH.  Deutsch.  Krypt.  Fl.  ii,  P.  3,  233. 


POLYTRICHACE^E.]  41  {Catharinea. 

HAB. — In  bare  stony  places.     Not  common. 

Catharinea  tenella  ROHL.  has  been  recorded  as  British,  but  we  believe 
erroneously, we  have  seen  specimens  so-called  from  the  following  localities  : — 

i. — Strensall  moor,  Yorkshire  (Dr.  Spruce  1847) ;  referred  by  Schimper 
to  C.  tenella  is  certainly  only  a  slender  variety  of  C.  undulata  growing 
in  sand,  and  Mr.  Boswell  informs  me  that  Schimper  afterwards 
called  it  A  tr.  undulatum  Var.  tenelliforme ;  it  may  be  the  same  as  the 
American  Var.  attenuatum  of  Bry.  Eur. 

2. — Hell's  mouth,  Loch  Goil  head  (Dr.  Nichol) ;  also  a  form  of  C. 
undulata. 

3. — Wet  places  by  the  road  between  Ben  Lawers  and  Killin  (McKinlay 
1865) ;  belongs  to  C.  undulata  Var.  minor. 

C,  tenella  is  a  good  species  ;  dioicous,  having  stems  £ — i  in.  high  ;  leaves 
oblongo-lanceolate,  scarcely  undulate,  dull  green  ;  capsule  oblongo-cylindric, 
about  half  the  length  of  that  of  C.  undulata,  inclined,  lid  large  conic,  tumid, 
rufous,  with  a  nearly  straight  pale  beak  rather  shorter  than  capsule. 

3.  CATHARINEA  CRISP  A  James. 

Dioicous.  Leaves  distant,  crisped  when  dry,  oblongo-lanceolate, 
scarcely  undulated,  smooth  at  back  ;  lamellae  i — 3,  very  narrow. 
Capsule  oblong,  suberect ;  lid  conic,  shortly  rostrate.  (T.  V,  C.) 

SYN. — Catharinea  crispa  JAMES  in   Proc.  ac.  nat.  sc.  Phil,  vii,  445  (1855).     LINDB.  in  Not.  ur 

Sallsk,  pro  Faun,  et  Fl.  fenn.  fdrh.  ix,  149  (1867). 
Atrlchum  crispum  SULL.   in  Gray  Man.   Bot.  U.  St.   2  ed.  41  (1856),  et  Icon.  muse.  73, 

T.  46  (1864)".     BRAITHW.  in  Jour,  of  Bot.  1870,  225,  t.  109,  f.  i.     HOBK.  Syn.  br.  m.  101 

(1873).     SCHIMP.  Syn.  muse.  2  ed.  530  (1876). 
Air.  laxifolium  WILS.  M.S. 
Atr.  tortifolium  SULL.  M.S. 

Dioicous  ;  in  soft  lurid-green  tufts.  Stems  tall,  slender,  simple, 
with  very  distant  leaves,  rooting  only  at  base,  2 — 4  in.  high.  Leaves 
large,  crisped  when  dry,  patent  when  moist,  nearly  flat,  scarcely 
undulated,  quite  smooth  at  back  ;  from  a  narrowed  base,  elongato- 
oblongo-lanceolate,  rather  obtuse,  border  very  narrow,  rufescent,  formed 
of  two  layers  of  cells,  remotely  toothed,  the  teeth  small  and  usually  in 
pairs  ;  nerve  thick,  vanishing  in  the  apex,  sometimes  with  a  few  spines 
at  back,  lamellae  very  low  and  indistinct,  i — 3,  in  section  showing  a 
row  of  i — 3  rather  lax  rounded  cells  ;  areolation  lax,  the  basal  cells 
rectangular,  hyaline,  empty,  the  rest  irregular,  rounded  and  hexagonal, 
chlorophyllose  ;  perichaetial  bracts  larger  and  more  acute.  Pedicels 
slender,  i — 3  in  each  perichsetium,  capsule  suberect,  often  a  little  curved, 
oblong-obconic,  wide-mouthed,  brown ;  lid  conic  with  a  subulate  beak, 
calyptra  scabrous  at  apex  ;  peristome  with  scarcely  any  basal  membrane, 
the  teeth  narrow,  unequal,  hyaline  with  a  purple  median  line. 


POLYTRICHACE^;.]  42  [Oligotrichum. 

Male  plants  in  distinct  tufts,  taller  and  more  slender ;  infl.  discoid, 
inner  perigonial  bracts  narrow  at  base,  suddenly  expanded  and  then 
contracted  into  an  acute  point,  the  nerve  slightly  lamellose  at  apex. 

HAB. — Among  stones  and  grass  by  the  sides  of  streams,  and  among  the 
sandy  deposit  washed  down  by  the  water,  not  common.  Male  and 
barren  plants  only. 

Boggy  ground,  Rowley  moor,  near  Rochdale  (Nowell  1848).  Staley  brushes,  Lancashire 
(Dr.  Wood  1860)  !  !  Keb  clough,  Todmorden  (Nowell  1860).  Several  places  near 
Hebden  bridge,  Yorkshire,  and  in  the  Saddleworth  district  (Hunt,  Hobkirk)  !  !  Rattle 
brook,  Dartmoor  (Mr.  Brent]  !  !  and  Tay  Cleave  (Holmes  1868).  Near  the  head  of  the 
Luchir,  Carmarthen  (Rev.  A.  Ley  1878)  !  ! 

Var.  ft.    Densifolia  Lindb.     Op.  cit.  p.  150. 

Plants  dwarf,  dense  leaved ;  leaves  broader,  elliptical,  more  patulous. 
SYN. — Atrichum  crispum  v&r.foliis  latioribus,  ellipticis  WILS.  MSS. 
HAB.— Oakmere,  Cheshire  (Wilson  1860)  !     Male  plant  only. 

The  fertile  plant  has  only  been  found  in  N.  America,  and  has  a  shorter 
stem,  with  the  leaves  denser,  longer,  more  lingulate  and  crisped. 


2.     OLIGOTRICHUM  LAM.  DE  C. 

(Fl.  franc.  3  ed.,  ii,  491  (1805).  ) 

Stems  simple,  innovating  from  subterranean  stolons.  Leaves 
lanceolate  or  oblong,  incurved  when  dry,  very  concave  ;  lamellae 
numerous,  high,  strongly  undulated.  Capsule  erect,  ovate-oblong, 
terete,  or  gibbose  and  compressed  ;  calyptra  cucullate,  with  a  few 
scattered  hairs  or  naked  ;  lid  conic,  rostrate  ;  teeth  of  peristome 
slender,  irregular. 

This  genus  is  named  from  the  calyptra  having  "  few  hairs,"  and 
stands  immediately  between  Catharinea  and  Polytrichum,  agreeing  with  the 
former  in  its  mode  of  growth  and  capsule,  and  with  the  latter  in  its  rigidity, 
more  opake  leaves  and  areolation. 

Several  other  allied  genera  have  been  formed,  which  are  perhaps 
better  regarded  as  sections  of  the  present,  and  we  thus  have  i.  Euoligotrichum, 
of  which  our  British  species  is  the  type,  and  including  others  from  South 
America  and  the  E.  Indies  ;  2.  Psilopilum,  of  five  species,  one  of  which  is 
found  in  the  extreme  north  of  Europe;  01.  glabratum  (\VAHL.) — Psilopilum 
arcticum  BRID.  3.  Dendroligotrichum,  represented  by  the  giant  Pol.  dendroides 
BRID.  4.  Polytrichadelphus,  embracing  some  20  species,  nearly  all  South 
American. 

Although  the  character  of  the  genus  differs  but  little  from  that  of 
Catharinea,  it  has  a  peculiar  habit  which  is  very  striking  in  the  growing  state, 
and  the  lid  is  so  slightly  attached,  that  it  generally  falls  away  with  the 
calyptra. 


POLYTRICHACE^E.]  43  [Oligotrichum. 

OLIGOTRICHUM  INCURVUM  (Huds.)  Lindb. 

Dioicous;  stems  short,  simple.  Leaves  patent,  incurved,  lanceo- 
late, concave,  involute  above,  subserrate,  lamellae  numerous,  undulated. 
Capsule  erect,  ovato-cylindric ;  lid  conic,  acuminate.  (T.  V,  D.) 

SYN. — Bryum  incurvum  HUDS.  Fl.  Angl.  2  ed.  479  (1778). 

Catharlnea  hcrcynica  EHRH.  Beitr.  i,  190  (1787).      WEB.  MOHR   Bot.  Tasch.  217  (1807). 

Fl.  dan.   t.  1417  (1810).     ROHL.   Deutsch.  Fl.  iii,  61   (1813)  ;  Ann.  Wett.  Ges.  iii,  232 

(1814).     BRID.  Mant.  muse.  203    (1819) ;  Bry.  univ.  ii,  99   (1827).     RABENH.  Deutsch. 

Krypt.  Fl.  ii,  P.  3,  234  (1848).     C.  MUELL.  Syn.  muse,  i,  196  (1849). 
Polytrichum  hercynicum  HEDW.  St.  crypt,  i,  40, 1. 15  (1787) ;  Sp.  muse.  94  (1801).     SCHRANK 

Baier.  Fl.  ii,  447  (1789)  ;  Prim.  Fl.  sal.  824  (1792).     DICKS.  PI.  crypt,  Fasc.  2,  3  (1790). 

WITH.   Bot.   arr.  Br.  Veg.  3  ed.  iii,  797  (1796).     BRID.  muse.  rec.  ii,  P.  I,  91,  t.  2,  f.  12 

(1798) ;  Sp.  muse.  I,  77  (1806).     HULL  Brit.  Fl.  P.  2,  248  (1799).      ROTH  Fl.  germ,  iii, 

353  (1800).     ROHL.  Moosg.  Deuts.  197  (1800).     SMITH  Eng.  Bot.  t,  1219  (1803);  Fl.  Br. 

iii,   1381   (1804).     WAHLENB.  Fl.  Lap.  348  (1812);  Fl.   Carp.  349  (1814).     SCHWAEGR. 

Suppl.  I,  P.  II,  329  (1816).     HOOK.  TAY.  Muse.  Br.  24,  t.  X  (1818).     FUNCK  Moostasch. 

70,  t.  57  (1821).     GRAY  Nat.  arr.  Br.  PI.  i,  720  (1821).     HOOK.  Fl.  Scot.  P.  2,  125  (1821) ; 

Brit.  Fl.  ii,  45  (1833).     WALLR.  Fl.  crypt,  germ,  i,  195  (1831).     HUEBEN.  Muse.  germ. 

521  (1833)- 

Orthotrichum  hercynicum  HOFFM.  Deutsch.  Fl.  ii,  25  (1795). 
Atrichum  hercynicum  P.  BEAUV.  Prodr.  42  (1805). 
Oligotrichum  hercynicum  LAM.  ET  DE  C.  Fl.  franc.  3  ed.  ii,  492  (1805).     BR.  SCHIMP.  Bry. 

eur.  iv,  mon.  4,  t.  5   (1844)  ;  Syn.  muse.  eur.  436    (1860),  et  2  ed.  531   (1876).     WILS. 

Bry.  Brit.  205,  t.  x  (1855).     BERK.  Handb.  Br.  m.  212,  t.   19,  f.  3  (1863).     MILDE  Bry. 

Sil.  247  (1869).     DE  NOT.  Epil.  Briol.  Ital.  342  (1869).     HOBK.  Syn.  br.  m.  101  (1873). 
Olig.  incurvum  LINDB.  in  HARTM.  Skand.  Fl.  9  ed.  ii,  45  (1864),  et  in  Not.  ur  Sallsk.  Fn. 

et  Fl.  fenn.  forh  ix,  144  (1867). 

Dioicous ;  gregariously  caespitose,  in  loose  tufts,  adhering  by  the 
earth  at  roots,  pale  glaucous  green,  when  old  rufescent.  Stems  about 
i  in.  high,  erect,  simple,  rigid.  Lower  leaves  remote,  minute,  appressed, 
oval,  acuminate  ;  upper  crowded,  rigid,  twisted  when  dry,  patent  when 
moist,  subarcuate-incurved,  very  concave,  from  a  pale  thin,  sheathing 
base,  narrowly  lanceolate,  the  margin  inflexed  above  the  middle,  remotely 
serrate  in  upper  part ;  nerve  at  back  toward  apex,  with  three  narrow 
remotely  serrate  lamellae,  above  with  10 — 12  high,  sinuose,  strongly 
undulated  lamellae,  each  in  section  of  5 — 12  equal  rounded  cells. 
Capsule  on  a  thickish  orange-red  pedicel,  twisted  to  the  right  above 
when  dry,  ovato-cylindric,  erect,  ferruginous,  when  dry  plicate,  contracted 
below  the  mouth,  and  with  a  few  stomata  on  the  neck ;  lid  large,  convex- 
conic,  obtusely  acuminate,  fugacious  ;  teeth  of  peristome  pale,  short, 
unequal ;  spores  very  small,  smooth. 

Male  plants  short,  more  slender,  the  infl.  rosaceous,  bracts  broadly 
oval,  acute,  with  a  lamellar  nerve;  paraphyses  both  filiform  and 
spathulate. 

HAB. — Bare  declivities  and  sandy  ground  on  mountains.     Scotland,  Wales, 
N.  of  England,  Ireland.  Fr.  7. 

Var.  (3.     Laxum  Braithw. 

Stems   3—4  in.    high,    slender,    flexuose.      Leaves    more    distant    and 


POLYTRICHACE^E.J  44  [Polytrichum. 

divergent,  not  dilated  at  base,  elongated,  pale  green,  pellucid,  with  larger 
areolation  ;  nerve  broader,  margin  more  or  less  distinctly  subserrated. 

HAB. — Ben   Nevis  (McKinlay  1863) !    near  Bangor,  N.   Wales   (J.  Griffiths 

1879) !  ! 

I  am  indebted  to  the  kindness  of  Mr.  Hobkirk  for  this  very  striking 
variety,  only  found  in  the  barren  state. 

3.     POLYTRICHUM  DILLEN. 

(Cat.  pi.  giss.  211  (1718).) 

Plants  short  and  simple,  or  tall,  showy  and  branched,  innovating 
from  radical  protonema,  or  subterranean  stolons,  or  from  middle  of 
stem.  Leaves  from  a  membranous,  sheathing  base,  rigid,  coriaceous, 
scarce  altered  by  drying,  nerve  broad,  covered  with  very  numerous 
erect  lamellae,  margin  spinoso-serrate.  Calyptra  dimidiate,  with  straight 
defluent  tomentum,  covering  all  or  most  of  capsule.  Capsule  erect 
or  cernuous,  terete  and  cylindraceous,  or  prismatic  or  cuboid,  and  4, 
rarely  5 — 6  angled,  tapering  to  a  neck  or  with  a  small  discoid  or 
subglobose  hypophysis.  Lid  convex,  apiculate  or  with  a  straight 
beak.  Teeth  32  or  64,  adhering  at  apex  to  the  papery  epiphragm. 

An  extensive  genus  scattered  over  the  whole  world  and  exhibiting 
great  diversity  in  the  size  of  the  individuals,  some  of  the  species  forming 
small  groups  of  closely  allied  forms.  Above  100  species  belong  to  the 
sections  with  rounded  fruit  (commonly  combined  into  the  genus  Pogonatum] 
and  about  30  to  that  of  Eupolytrichum.  The  derivation  is  from  TroAvs  many, 
Opig  hair. 

CLAVIS    TO   THE    SPECIES. 

Capsules  rounded. 

Leaves  short,  broadly  lanceolate,  subinvolute  at  margin. 

Leaves  obtusely  toothed.     Capsule  subglobose.     Columella  cylindric. 

subrutundutn. 
Leaves  sharply  serrate.     Capsule  longish  oval.     Columella  4-winged. 

aloides. 
Leaves  longer,  narrowly  lanceolate,  acute. 

Capsule  subcylindric,  erect,  terete,  papillose.  urnigeruin. 

Capsule  oblong,  tumid,  somewhat  inclined,  smooth.  alpinum. 

Capsules  angular. 

Leaves  entire  with  an  inflexed  margin. 

Leaves  obtuse  at  apex.  sixangularc. 

Leaves  aristate  at  apex. 

Arista  short,  smooth,  coloured ;  stems   short,  leaves  spreading,  recurved ; 

capsule  square,  prismatic.  junipcrinnni. 

Arista  the  same;  stem  tall,  leaves  erecto-patent,  straight;  capsule  small, 

cuboid.  strictum. 

Arista  longer,  rough,  hyaline.  pilifcrwn. 

Leaves  sharply  serrated,  plane,  acuminate. 

Capsule  ovate,  obscurely  angled,  lid  rostrate  ;  leaves  short.  gracile. 

Capsule  oblong,  4 — 6  angled,  leptodermous ;  lid  conical,  pointed. 

attenuatum. 

Capsule  cubic,  acutely  4-angled,  pachydermous,  with  a  distinct  hypophysis  ; 
lid  conico.rostellate  commune. 


POLYTRICHACE.E.]  45  [Polytrichwn. 

Sect.  i.     ALOIDELLA   C.  MUELL. 

Stem  short.  Leaves  few,  rather  broad,  more  or  less  involute, 
resembling  those  of  a  miniature  aloe.  Capsule  oval  or  cylindric. 

i.    POLYTRICHUM  SUBROTUNDUM  Huds. 

Dioicous  ;  subgregarious.  Stem  very  short,  simple  ;  leaves  patent, 
lanceolate,  rather  obtuse,  remotely  denticulate  above.  Capsule  globose- 
urceolate,  wide-mouthed  ;  lid  conic,  rostellate.  (T.  VI,  A.) 

SYN. — Adiantum  aureum  minus,  capitulis  rotundis,  BOBART.  RAY   Syn.  St.  Br.  i  ed.  app.  237 

(1690). 

Polytrichum  minus,  capsulis  subrotundis,  calyptra  quasi  lacera  coronatis  DILL.  Giss.  221 
(1719),  et  Syn.  3  ed.  91,  n.  3  (1724). 

Polytr.  nanum,  capsulis  subrotundis  galeritis,  aloes  folio  non  serrato  DILL.  Hist.  muse.  428, 
t.  55,  f.  6  (1741)  et  Herb. 

M  nium  polytrichoides  a.  L.  Sp.  PI.  ii,  1112,  n.  13  (1753).    POLLICH  PI.  palat.  n.  990(1777). 

Ditto  Var.  rotundifructum  EHRH.  in  Hann.  Mag.  1780,    236. 

Polytr.subrotundum  HUDS.  Fl.  Angl.  400  (1762).     CURT.  Fl.  Lond.  t.  68   (1778).     RELH. 

Fl.  Cant.  Suppl.  16  (1786).     WITH.   Bot.  arr.  Br.  Veg.  3  ed.  786  (1796).     MENZ.   in    Tr. 

Lin.  Soc.  iv,  68,  n.  2  (1798).     HULL  Br.  Fl.  P.  2,  247  (1799).     SMITH  Fl.   Brit,  iii,  1378 

(1804)  ;    Eng.  Bot.   t.  1624  (1806).     TURN.  Muse.  hib.  89   (1804).     MART.   Fl.  crypt. 

Erlang.  80  (1817).     DUBY  Bot.  gall,  ii,  547  (1830).     LINDB.  in  Not.  ur  Sallsk.  Fn.  Fl. 

fenn.  forh.  ix,  141  (1867.) 

Polytr.  nanum  NECK.  Meth.  muse.  119  (1771).  SCHREB.  Spic.  fl.  lips.  74  (1771).  SWTZ. 
Meth.  muse.  26,  n.  6,  p.p.  (1781).  LEYSS.  Fl.  hal.  2  ed.  263  (1783).  HEDW.  St.  crypt. 
i,  35,  t.  13  (1787)  ;  Sp.  muse.  95  (1801).  MENZ.  SM.  TURN.  MART.  op.  c.  TIMM  Fl. 
meg.  n.  771  (1788).  ROTH  Fl.  germ,  i,  458  (1788).  SIBTH.  Fl.  Oxon.  306  (1794).  BRID. 
Muse.  rec.  ii,  P.  I,  88  (1798)  ;  Sp.  muse.  I.  71  (1806)  ;  Mant.  200  (1819).  HULL  Br.  Fl. 
P.  2,  247  (1799).  SCHULTZ  Fl.  Starg.  286  (1806).  Eng.  Bot.  t.  1625  (1806).  WEB. 
MOHR  Bot.  Tasch.  227  (1807).  VOIT  Muse.  herb.  61  (1812).  SCHWAEGR.  Suppl.  i,  P.  2, 
324  (1816).  HOOK.  TAYL.  Muse.  Brit.  28,  t.  ii  (1818).  FUNCK  Moostasch.  70,  t.  57 
(1821).  HOOK.  Fl.  Scot.  P.  2,126  (1821);  Brit.  Fl.  ii,  51  (1833).  WALLR.  Fl.  crypt, 
germ,  i,  197  (1831).  HUEBEN.  Muse.  germ.  524  (1833).  RABENH.  Deutsch.  Kr.  Fl.  ii, 
P-  3>  235  (1848).  C.  MUELL.  Syn.  muse,  i,  204  (1849).  HARTM.  Skand.  Fl. 

Pol.  nanum  var.  ft.  WEISS  Fl.  gott.  175  (1770).     HUDS.  op.  c.  2  ed.  470  (1778). 

Pol.  alo'ifolium  ft.  SCOP.  Fl.  earn.  2  ed,  ii,  310  (1772). 

Pol.  ericoides  HOFFM.  Deutsch.  Fl.  ii,  24  (1795).      WIB.  Fl.  Werth.  291  (1799). 

Pol.  pumilum  SWARTZ  in  W.  ak.  nya  Handl.  xvi,  271  (1795)  ;  Disp.  muse.  Suec.  77  et  108, 

t.  ix,  f.  19  (1799),  et  Adnot  bot.   166  (1829).     BRID.  Sp.  muse.  I,  69  (1806),  Mant.  muse. 

199.  HEDW.  Sp.  muse.  97,  t.  21,  f.  7-9  (1801).  STEUD.  nom.  crypt.  353  (1824). 
Pogonatum  pumilum  P.  BEAUV.  Prodr.  84  (1805).  BRID.  Bry.  univ.  ii,  116  (1827). 
Fog.  nanum  P.  BEAUV.  1.  c.  et  in  Mem.  soc.  Linn.  Par.  i,  t.  xi,  f.  3.  ROHL.  ann.  Wett. 

Ges.  iii,  231   (1814);    Deutsch.  Fl.  iii,  69  (1813).     BRID.  Bry.  univ.  ii,  117   (1827).     BR. 

SCHIMP.  Bry.  Eur.  iv,  Mon.  5,  t.  7  (1844) ;  Syn.  muse.  Eur.  438  (1860),  et  2  ed.  534  (1876). 

WILS.  Bry.  Brit.  206,  t.  xi  (1855).     BERK.  Hand.  Br.  m.  210,  t.  19,  f.  i   (1863).     MILDE 

Bry.  Siles.  248  (1869).     DE  NOT.  Epil.  Briol.  Ital.  340  (1869).     HOBK.  Syn.  br.  m.  101 

(1873).     HUSN.  Mouss.  Nord-ouest  134  (1873). 
Pol.  intermedium  BRID.  Sp.  muse,  i,  70  (1806). 
Pog.  intermedium  ROHL.  Deutsch.  Fl.  2  ed.  iii,  60  (1813). 
Pol.  semidiaphanum  BRID.  Mant.  muse.  200  (1819). 
Pog.  nanum  ft.  semidiaphanum  BRID.  Bry.  univ.  ii,  119. 
Pog.  subrotundum  LINDB.  in  HARTM.  Skand.  Fl.  9  ed.  ii,  44,  inter  synon.  (1864). 

Dioicous;  laxly  gregarious.  Stems  very  short,  simple,  naked  at 
base  ;  leaves  crowded,  embracing  the  stem,  patulous,  olivaceous-green, 


POLYTRICHACE^.]  46  \Polytrichum. 

linear-lingulate,  obtuse,  margin  erect  and  remotely  denticulate  above, 
convex  at  back  and  obscurely  muricate  below  apex ;  when  dry  adpresso- 
incurved;  lamellae  about  36,  subundulate,  rather  high  and  somewhat 
distant,  each  in  section  of  6 — 8  small,  equal  rounded  cells.  Seta  purple, 
often  flexuose ;  capsule  ovato-globose,  erect  or  inclined,  pale  olive, 
turbinate  when  dry  and  contracted  below  the  wide  mouth  ;  lid  convex, 
protuberant,  rostellate  ;  teeth  32,  linear,  obtuse,  hyaline  with  a  purple 
median  line.  Calyptra  cucullate,  rufescent,  scarce  covering  all  capsule. 
Columella  cylindric. 

Male  infl.  cyathiform,  inner  bracts  obovato-lanceolate,  the  nerve 
thin,  with  a  few  lamellae  at  apex. 

HAB. — By  roadsides,  on  sandy  places  on  heaths  and  banks  in  woods.     Not 
uncommon,  but  much  less  frequent  than  the  next  species.         Fr.  n — 2. 

Var.  ft.  Longisetum  (Hampe)  Lindb. 

Leaves  longer,  more  linear.  Seta  much  elongated  ;  capsule  oval-oblong. 
SYN. — Pol.  nanum  var.  ft.  longisetum  HAMPE  MSS.  C.  MUELL.  Synops.  i,  204. 

Pogon.  nanum  var.  ft.  longisetum  BR.  SCH.  Bry.  eur.  mon.  5,  t.  7,  f.  ft. 

Pol.  subrotundum  var.  ft.  longisetum  LINDB.  op.  cit.  143. 

HAB. — Near  Virginia  water,  with  the  ordinary  form    (Braithwaite,   1868)  !  ! 

Near  Penzance  (Curnow)  !      Bickleigh  down  (Holmes),  Yanaton  down, 

Devon  (Brent). 

Several  forms  of  this  moss  occur,  one  of  which  with  linear,  shorter, 
eroso-denticulate  leaves  is  the  P.  pumilum  SWARTZ  and  other  old  authors  ;  and 
P.  semidiaphanum  BRID.  only  differs  in  the  broader  border  of  the  leaf  being 
pale  and  thus  more  transparent ;  P.  subrotundum  was  also  kept  distinct  from 
P.  nanum  for  a  state  in  which  the  leaf  was  almost  entire.  In  this  species 
alone,  the  inner  membrane  of  the  sporangium  is  in  contact  with  the  columella, 
the  cylindric  form  of  which  is  evident  by  a  transverse  section  of  the  capsule, 
and  is  thus  useful  to  distinguish  this  species  from  the  next,  in  such  a  dubious 
form  as  the  var.  longisetum. 

2.    POLYTRICHUM  ALOIDES  Hedw. 

Dioicous;  stem  short,  simple  or  innovating.  Leaves  sheathing, 
broadly  lanceolate,  subacute,  sharply  serrate  at  margin  and  back  of 
nerve.  Capsule  erect,  oblongo-cylindric,  lid  conico-rostellate ;  colu- 
mella 4-winged.  (T.  VI,  B.) 

Svx.—Polytrichum  parvum,  Aloes  folio  serrato,  capsulis  oblongis  DILL.  Hist.  muse.  429,  t.  55, 
f.  7  (1741)  et  Herb. 

Mnium  polytrlcholdes  var.  ft.  L.  Sp.  pi.  ii,  1112  (1753). 

Ditto  var.  longifrttctum  Ehrh.  in  Hann,  mag.  1780,  236. 

Pol.  subrotundum  var.  ft.  HUDS.  Fl.  angl.  400  (1762). 

Pol.  nanum  WEISS  Fl.  gott.   173  (1770).     LIGHTF.  Fl.  Scot,  ii,  701  (1777).      HUDS.  op. 

cit.  2  ed.  470  (1778).     Sw.  meth.  muse.  26,  p.p.   (1781).     LINDB.  in  not.  ur  Sallsk.  Fn. 

et.  Fl.  fenn.  torh.  ix,  139  (1867).    Var.  ft.  LEYSS.  Fl.  hal.  2  ed.  263  (1783). 


POLYTRICHACE.E.]  47  [Pofytnchum. 

Pol.  mnioides  NECK.  Meth.  muse.  123  (1771). 

Pol.  alocfolium  i  et  2  SCOP.  Fl.  earn.  2  ed.  ii,  309  (1772). 

Pol.  aloides  HEDW.  St.  crypt,  i,  37,  t.  xiv  (1787) ;  Sp.  Muse.  96  (1801).     WILLD.  Fl.  berol. 

n.  914  (1787).      ROTH  Fl.  germ,  i,  458,  et  iii,  332  (1788).      TIMM  Fl.  meg.  n.  772  (1788). 

SIBTH.  Fl.  Oxon.  307  (1794).     WITH.  Bot.  arr.  Br.  Veg.  3  ed.,  iii,  796  (1796).     HOFFM. 

Deut.  Fl.  ii,  24  (1796).     SWARTZ  muse.  suec.  78  (1798).     MENZ.  in  Tr.  Lin.  soc.  iv,  70 

(1798).     BRID.  muse.  rec.  ii,  P.  I,  72  (1798) ;    Sp.  muse,  i,  72  (1806)  ;    Mant.  muse.  200 

(1819).     HULL  Br.  Fl.  P.  2,  247  (1799).     HOPPE  Bot.  Tasch.  155  (1800).     ROHL.  Moosg. 

Deutsch.  192  (1800).     SM.  Fl.  Brit,  iii,  1380  (1804) ;  Eng.  Bot.  t.  1649.     TURN.  Muse. 

hib.  88  (1804).     SCHULTZ  Fl.  Starg.  287  (1806).      WEB.  MOHR  Bot.  Tasch.  226  (1807). 

VOIT  muse.  herb.  60  (1812).     WAHLEN.  Fl.  carp.  349  (1814).    SCHWAEGR.  Suppl.  I,  P.  2, 

322  (1816).     HOOK.  TAYL.  muse.  brit.  28,  t.  xi  (1818).     HOOK.  Fl.  scot.  P.  2,  126  (1821)  ; 

Brit.  Fl.  ii,  50  (1833).     GRAY  Nat.   arr.  Br.  Veg.  i,  721   (1821).     ZENK.   DIETR.  muse. 

Thuring.  n.  32  (1822).     WALLR.  Fl.  crypt,  germ,  i,  197  (1831).      HUEBEN.  muse.  germ. 

522  (1833).     BALS.  DE  NOT.  Pr.  Bry.  Mediol.  22  (1833).     MACK.  Fl.  hib.  P.  2,  28  (1836). 

DE  NOT.  Syll.  muse.  n.  211  (1838).      FIOR.  MAZ.  Bry.  rom.  2  ed.  30  (1841).      RABENH. 

Deutsch.  Krypt.  Fl.  ii,  P.  3,  235  (1848).     C.  MUELL.  Syn.  muse,  i,  202  (1849). 
Pol.  rubellum   MENZ.  in  Tr.  Lin.   Soc.  iv,  79,  t.  vii,  f.  3  (1798).     HULL  Br.  Fl.  P.  2,  248 

(1799).     SMITH  Fl.  Brit,  iii,  1381  (1804) ;    Eng.  Bot.  t.  1939.     BRID.   Sp.  muse.  I,  73 

(1806),  et  Mant.  muse.  201  (1819). 
Pogonatum  aloides  P.  BEAUV.   Prodr.  84   (1805).      ROHL.  Deuts.  Fl.  iii,  60  (1813)  ;    Ann. 

Wett.  Ges.  iii,  229  (1814).     BRID.  Bry.  univ.  ii,  119  (1827).     BR.   SCHIMP.  Bry.  Eur.  iv, 

Mon.  6,  t.  8  (1844) ;    Syn.  muse.  439  (1860),  et  2  ed.  535  (1876).     WILS.  Bry.  Brit.  206, 

t.  xi  (1855).     BERK.  Handb.  Br.  m.  210,  t.  19,  f.  2  (1863).     MILDE  Bry.  Siles.  248  (1869). 

DE  NOT.  Epil.  Briol.  Ital.  339  (1869).     HOBK.  Syn.  Br.  M.  102  (1873).     HUSN.   Mous. 

du  Nord-ouest  135  (1873). 

Dioicous ;  gregarious  or  clustered.  Stem  from  a  creeping  base, 
erect,  simple,  naked  below,  sometimes  bifid  and  elongated.  Leaves 
crowded,  patulous,  dull  green,  lowest  scale-like,  ovate,  the  rest  gradually 
longer  as  they  ascend,  from  a  sheathing,  submembranous  base,  elongate- 
lanceolate,  rather  acute,  distinctly  serrate  above  and  on  the  back  of  the 
nerve,  contracted  and  appressed  when  dry  ;  lamellae  about  48,  low, 
straight,  each  in  section  of  one  row  of  3 — 5  small,  equal,  rounded  cells. 
Seta  purple.  Capsule  somewhat  contracted  at  base,  oblong-urceolate, 
erect  or  inclined,  olivaceous,  with  a  red  mouth,  finally  brown,  granulose 
toward  base  ;  lid  conic,  rostellate  ;  columella  4-winged  ;  teeth  32,  linear, 
pale  ;  spores  pale  green.  Calyptra  longer  than  capsule,  whitish,  tinged 
with  ferruginous  below. 

Male  infl.  discoid,  inner  bracts  obovate,  pointed,  with  some  lamellae 
at  apex. 

HAB. — Heaths,  hollow  banks  and  by  the  side  of  paths  in  woods.     Common. 
Fr.  ii — 2. 

Var.  /?.  Dicksoni  (Turn.}     Wallm. 

Dwarf,  stem  simple  or  branched  ;  seta  very  short,  capsule  subobovate, 
lid  conical,  calyptra  sometimes  confluent  below  the  capsule,  sometimes  per- 
forated at  apex. 

SYN. — Polyi.  nanum  HOFFM.  Deutsch.  Fl.  ii,  24.  in  obs.  (1795). 

Pol.  Dicksoni  TURN.  Muse.  Hib.  90,  t.  x,  f.  2.     Eng.  Bot.  t.  1605  (1804).     BRID.  Sp.  muse. 
71  et  Mant.  muse.  201. 

Pol.  aloides  nanum  WEB.  M.  Bot.  Tasch.  227,  in  obs.  var.  ft.  Dicksoni  WALLM.  in  LILJEBL. 
Svensk  Fl.  3  ed.  528  (1816).     HOOK.  TAY.  Muse.  Br.  28. 


POLYTRICHACE^;.]  48  [Polytrichum. 

Pol.  minimum  CROME  in  HOPP.  Bot.  Tasch.  1807,  108 :  et  Samml.  n.  30. 
Pol.  laterale  CROME  op.  c.  in,  et.  Samml.  ii,  89. 
Pol.  defluens  BRID.  Mant.  muse.  200. 

Pog.  aloides  var.  y.  dcflucns,  BRID.  Bry.  univ.  ii,  121.  C.  MUELL.  Syn.  i,  203.  SCHIMP. 
Synops.  Muse.  Var.  ft.  minus  Bry.  eur.  Bry.  brit.  BERK.  Handb. 

HAS. — On  dry  banks.     Not  common. 

Near  Yarmouth  (Dickson).  Derry,  Ireland  (D.  Brown).  Hopton,  Suffolk  (Turner  1802). 
Banks  of  Tay,  Glebe  of  Kenmore  (Herb.  Hook)  !  Strome  Ferry  (Hunt,  1866)  !  ! 
Madron,  Penzance  (Curnow).  Compton  and  Moretonhampstead  (Brent). 

This  species  should  strictly  bear  the  name  of  P.  nanum,  having  been  so 
called  and  clearly  defined  by  WEISS  in  1770  in  his  excellent  "  PL  cvypt.  Fl. 
gotting;  "  but  seeing  that  later  authors  have  transferred  the  name  to  the  pre- 
ceding species,  it  would  lead  to  endless  confusion  to  retain  it.  The  plant  is 
taller  and  more  branching  than  P.  subrotundum,  and  like  it  presents  several 
different  forms,  the  serration  varying  in  extent,  and  size  of  teeth  and  some- 
times being  nearly  obsolete  on  the  back  of  the  nerve  ;  in  P.  nibellum  MENZ.  it 
is  very  distinct,  and  the  stems  also  are  taller  and  more  branched. 
Occasionally  both  stems  and  setae  become  greatly  elongated,  a  state  which 
appears  to  be  frequent  in  N.  India  and  Japan. 


SECT.  2.    POGONATUM  P.  BEAUV. 

Stems  taller,  simple  or  branched,  leafy  throughout ;  leaves  narrower, 
lanceolate,  acute.  Capsule  as  in  Sect.  i. 

3.    POLYTRICHUM  URNIGERUM  L. 

Dioicous ;  glaucescent,  branched  above.  Leaves  from  a  short, 
sheathing  base,  lanceolate,  acute,  sharply  serrated.  Capsule  erect, 
ovali-cylindric,  narrowed  in  the  middle,  papillose ;  lid  convex,  rostrate. 
(T.  VI,  C.) 

SYN. — Polytrichum  ramosum,setis  ex  alls  urnigeris  DILL.  Hist.  muse.  427,  t.  55,  f.  5  (1741)  et  Herb. 
Pol.  urnigerum  L.  Sp.  pi.  ii,  1109,  n.  3  (1753)  ;  et  Fl.  suec.  967.  HUDS.  Fl.  angl.  400 
(1762).  OEDER  Fl.  Dan.  t.  296.  NECK.  meth.  muse.  129  (1771).  WITHER.  Bot. 
arr.  Br.  veg.  663  (1776).  LIGHTF.  Fl.  Scot,  ii,  703  (1777).  WEB.  Fl.  Gott.  n.  119 
(1778).  ROTH  Fl.  germ.  i.  457,  et  iii,  350  (1788).  EHRH.  Hann.  mag.  235  (1780). 
HOFFM.  Deutsch.  Fl.  ii,  24  (1796).  MENZ.  Tr.  Lin.  soc.  iv,  81  (1798).  BRID.  Muse. 
rec.  ii,  P.  I,  97  (1798)  ;  Sp.  muse.  I,  65  (1806)  ;  Mant.  muse.  199  (1819).  SWARTZ 
muse.  suec.  77  (1798).  HULL  Br.  Fl.  P.  2,  248  (1799).  ROHL.  Moosg.  Deutsch.  210 
(1800).  HOPPE  Bot.  Tasch.  154  (1800).  HEDW.  Sp.  muse.  100,  t.  22,  f.  5-7  (1801). 
BM.  Fl.  Brit,  iii,  1378  (1804);  Eng.  Bot.  1218.  TURN.  Muse.  hib.  87  (1804).  WEB. 
MOHR  Bot.  Tasch.  216  (1807).  WAHL.  Fl.  lapp.  347  (1812)  ;  Fl.  carp.  349  (1814). 
VOIT  Muse.  herb.  60  (1812).  SCHWAEGR.  Suppl.  I,  P.  2,  318  (1816).  MART.  Fl.  cr. 
erlang.  81  (1817).  HOOK.  TAYL.  Muse.  brit.  27,  t.  xi  (1818).  HARTM.  Skand  Fl.  286 
(1820).  FUNCK  Moostasch.  70,  t,  57  (1821).  HooK.Fl.  Scot.  P.  2, 126  (1821) ;  Brit.  Fl. 
11,50(1833).  GRAY  Nat.  arr.  Br.  pi.  i,  721  (1821).  ZENK.  DIETR.  Muse.  Thur.  n.g 
(1821).  WALLR.  Fl.  crypt,  germ,  i,  197  (1831).  HUEBEN.  Muse.  germ.  525  (1833). 
BALS.  DE  NOT.  Pr.  Bry.  mediol.  21  (1834).  MACK.  Fl.  hib.  P.  2,  28  (1836).  DE  NOT. 
SYLL.  muse.  n.  210  (1838).  FIOR.  MAZ.  Briol.  rom.  2  ed.  30  (1841).  RABENH.  Deuts. 
Krypt.  Fl.  n,  P.  3,  236  (1848).  C.  MUELL.  Syn.  muse,  i,  208  (1849).  LINDB.  in  Not. 
ur  Sallsk.  Fl.  Fn.  fenn.  ix,  134  (1867). 

Bryum  urnigerum  NECK.  Delic.  gallo-belg.  ii,  462  (1768). 


POLYTRICHACE^E.]  49  [Polytrichum. 

Pol.  dubium  SCOP.  Fl.  earn.  2  ed.  ii,  310  (1772). 

Pol.  axillare  LAM.  Fl.  franc,  i,  43  (1778). 

Pol.  pulverulentum  REYN.  in  Act.  Lausan.  ii,  P.  i,  p.  n  (1780).  ROHL.  op.  cit.  216. 
BRID.  Muse,  rec.,  Sp.  muse,  et  Mant.  SCHWAEGR.  op.  c.  322. 

Pol.fasdculatum  MICHX.  Fl.  bor.-amer.  ii,  294  (1803).     BRID.  Sp.  muse.  64. 

Pogonatum  pulverulentum  P.  BEAUV.  Prodr.  84  (1805). 

Pog.fasciculatum  P.  BEAUV.  op.  cit.  84. 

Pog.  urnigernm  P.  BEAUV.  op.  cit.  85.  ROHL.  Deutsch.  Fl.  iii,  60  (1813) ;  Ann.  Wett. 
ges.  iii,  228  (1814).  BRID.  Bry.  univ.  ii,  124  (1827).  BR.  SCHIMP.  Bry.  eur.  iv,  Mon.  8, 
t.  9  (1844)  ;  Syn.  muse.  440  (1860),  et  2  ed.  537  (1876).  WILS.  Bry.  Brit.  208,  t.  xi 
(1855).  BERK.  Handb.  Br.  m.  211  (1863).  MILDE  Bry.  siles.  249  (1869).  DE  NOT. 
Epil.  Briol.  Ital.  338  (1809).  HUSN.  Mouss.  Nord-ouest  135  (1873).  HOBK.  Syn. 
br.  m.  102  (1873). 

Dioicous;  pale  glaucous  green  above,  ferruginous  brown  below  ;  in 
wide  lax  patches.  Stem  erect  i — 3  in.  high,  rigid,  innovating  laterally 
and  more  or  less  fasciculate.  Lower  leaves  minute,  scale-like,  cuspidate, 
upper  crowded,  coriaceous,  patent  when  moist,  straight  and  incumbent 
when  dry,  from  a  shortly  sheathing  base,  broadly  lineal-lanceolate,  very 
acute,  nearly  plane,  margin  serrate  throughout  with  solid  acute  teeth, 
also  slightly  serrate  at  back  of  apex  ;  lamellae  dense,  low,  straight,  about 
48,  each  in  section  of  one  row  of  4 — 5  cells,  the  marginal  larger,  round, 
incrassate,  papillose  on  the  surface.  Perichsetial  bracts  narrow,  subulate, 
with  long  sheathing  bases.  Seta  longish,  reddish  yellow.  Calyptra 
yellow-brown,  prolonged  below  capsule.  Capsule  nearly  erect,  ovate- 
oblong,  cylindraceous,  somewhat  contracted  below  the  mouth,  pachy- 
dermous,  rufous  brown,  papillose  with  ascending  conical  granules, 
without  stomata  ;  lid  convex  with  a  straight  subulate  beak.  Peristome 
from  a  broadish  orange  basal  membrane,  teeth  32,  equal,  rufous,  rather 
short.  Spores  smooth.  Male  plants  shorter  and  more  slender,  bracts 
very  broad,  obovate,  with  a  short  point. 

HAB. — On   banks   and   by   streams   in   subalpine   districts,  not  uncommon. 
Fr.  ii — i. 
Var.  /3.  Humile  Wahlenb. 

Stem  short,  simple ;  leaves  shorter,  straight.  Capsule  narrower,  ovate, 
subcernuous,  on  a  shorter  seta. 

SYN. — Pol.  urnigerum  var.  (3.  humile  WAHLENB.  Fl.  lapp.  347  (1812).     BRID.  Mant.  muse.  199  ; 
Bry.  univ.  ii,  126.     SCHIMP.  Syn.  muse.  440,  et  2  ed.  537. 

HAB. — Dry  stony  places  on  moorlands. 

This  species  varies  somewhat  in  size  and  colour,  and  the  capsules 
occasionally  are  a  little  asymmetric  ;  the  papillae  extend  over  the  lower  part 
of  the  lid. 

4.    POLYTRICHUM  ALPINUM  L. 

Dioicous ;  stem  tall,  fasciculate-branched.  Leaves  longly  sheathing, 
lineal-lanceolate,  sharply  serrate,  spinulose  at  back.  Capsule  sub- 


POLYTRICHACE^.]  5°  \Polytrichum. 

cernuous,    tumid,    ovate ;    lid    obliquely    rostrate ;    peristome    short, 
irregular.     (T.  VI,  D.) 

Svx.—Polytrichum  alpinum  ramcsum,  capsulis  e  summitate  ellipticis  DILL.   Hist.   muse.  427, 

t.  55,  f.  4  (1741)  et  Herb. 

Pol.  alpinum  L.  Sp.  pi.  ii,  nog,  n.  2  (1753)  ',  Syst.  nat.  ii,  700.  NECK.  meth.  muse.  120 
(1771).  WITHER.  Bot.  arr.  Br.  Veg.  ii,  663  (1776).  LIGHTF.  Fl.  Scot,  ii,  703  (1777). 
WEBER  Fl.  gott.  40  (1778).  HUDS.  Fl.  Angl.  2  ed.,  ii,  470  (1778).  ROTH  Fl.  Germ,  i, 
457  (1788),  et  iii,  349.  BRID.  Muse.  rec.  ii,  P.  I,  99  (1792)  ;  Sp.  muse.  I,  62  (1806)  ; 
Mant.  muse.  198  (1819).  HOFFM.  Deuts.  Fl.  ii,  24  (1796).  MENZ.  Tr.  Lin.  Soc.  iv,  83 
(1798).  SWARTZ  muse.  suec.  76  (1798).  HULL  Br.  Fl.  P.  2,  248  (1799).  HOPPE  Bot. 
Tasch.  153  (1800).  HEDW.  Sp.  muse.  92,  t.  19,  f.  2  --6  (1801).  SMITH  Fl.  brit.  iii,  1377 
(1804) ;  Eng.  Bot.  t.  1905.  TURN.  Muse.  hib.  85  (1804).  P.  BEAUV.  Prodr.  85  (1805). 
LAM.  DE  C.  Fl.  franc.  3  ed.  ii,  490  (1805).  WEB.  MOHR  Bot.  Tasch.  225  (1807).  Fl. 
Dan.  t.  1362.  WAHLENB.  Fl.  lapp.  346  (1812)  ;  Fl.  carp.  348  (1814).  HARTM.  Skand. 
Fl.  286.  SCHWAEGR.  Suppl.  I,  P.  2,  307  (1816).  HOOK.  TAYL.  Muse.  brit.  27,  t.  xi 
(1818).  HOOK.  Fl.  Scot.  P.  2,  126  (1821) ;  Brit.  Fl.  ii,  50  (1833).  FUNCK  Moostasch. 
69,  t.  57  (1821).  GRAY  Nat.  arr.  Br.  pi.  i,  721  (1821).  WALLR.  Fl.  crypt,  germ,  i,  198 
(1831).  HUEBEN.  Muse.  germ.  527  (1833).  MACKAY  Fl.  Hib.  P.  2,  28  (1836).  DE  NOT. 
Syll.  muse.  n.  209  (1838).  FIOR.  MAZ.  Briol.  rom.  2  ed.  29  (1841).  RABENH.  Deuts.  Krypt. 
Fl.  ii,  P.  3,  236  (1848).  C.  MUELL.  Syn.  muse,  i,  210  (1849).  LINDB.  op.  c.  129  (1867). 

Pol.  urnigerutn  var.  /?.  HUDS.  Fl.  Angl.  400  (1762). 

Pol.  ferrugincum  BRID.  Sp.  muse,  i,  61  (1806). 

Pogonatum  alpinum  ROHL.  Deutschl.  Fl.  2  ed.  iii,  59  (1813)  ;   et  in  Ann.  Wetter.  Ges.  iii, 

226  (1814).     BRID.  Bry.  univ.  ii,  129  (1827).     BR.    SCHIMP.  Bry.  Eur.   iv,  Mon.  9,  t.  x 

(1844)  ;  Syn.  muse.  441  (1860),  et  2  ed.  538  (1876).     WILS.   Bry.  Brit.   208,  t.  xi  (1855). 

BERK.  Handb.  Br.  m.  211  (1863).     MILDE  Bry.  Siles.  249  (1869).     DE  NOT.  Epil.  Briol. 

Ital.  338  (1869).     HOBK.  Syn.  Br.  m.  102  (1873). 
Pol.furcatum  HORNSCH.  in  N.  ESF.N.  Hor.  phys.  berol.  67  (1820). 
Pog.furcatum  BRID.  Bry.  un.  ii,  133  (1827). 

Dioicous ;  laxly  and  irregularly  csespitose,  deep  green,  rufous  brown 
when  old.  Stem  rooting  only  at  base,  trigonous,  slender,  erect  or 
ascending,  2 — 4  in.  high,  dichotomous  and  fasciculate-branched.  Leaves 
below  scale-like,  scariose,  aristate  with  the  excurrent  nerve,  upper 
gradually  longer,  from  a  whitish,  glossy,  long  sheathing  base,  patulous, 
recurved  or  subsecund,  when  dry  erecto-appressed,  with  the  margin 
inflexed,  long,  lineal-lanceolate,  cuspidate,  concave,  sharply  serrate, 
spinulose  and  reddish  at  back  towards  apex;  lamellae  about  32,  higher, 
each  in  section  of  one  row  of  4 — 7  rounded  cells,  the  marginal  larger, 
ovate,  incrassate,  papillulose  on  the  surface.  Seta  long,  flexuose, 
orange.  Calyptra  shorter  than  capsule,  fulvous  brown.  Capsule 
obliquely  inclined,  turgidly  ovate  or  subgibbose — oblong,  with  a  short 
neck  bearing  stomata,  leptodermous,  smooth,  at  first  greenish-yellow 
with  the  mouth  red,  afterwards  olive  brown  or  black  when  old ;  lid 
small,  conoid,  with  a  subulate  oblique  beak  ;  teeth  of  peristome  yellow, 
short  and  very  irregular ;  spores  punctulate.  Male  plants  shorter  and 
more  slender,  scarce  ;  bracts  obovate,  pointed. 

HAB. — Rough  stony  and  grassy  places  on  all  our  mountains,  descending  to 

the  lower  moorlands  in  a  dwarf  form.  Fr.  7—8. 

This  pretty  moss  may  be  readily  known  by  its  branching  stems  and 
tumid,  pale,  oblique  capsule.  Several  well-marked  varieties  have  been  met 


POLYTRICHACE.E.]  51  [Polytrichum. 

with  on  the  higher  mountains  and  in  northern  Europe,  one  of  which  Var. 
silvaticum  (MENZ.)  is  probably  a  native  of  Scotland,  and  is  chiefly  distinguished 
by  its  narrower  oblong,  subincurved  capsules.  Another,  Var.  septentrionale 
(Sw.)  LINDB.  is  incorrectly  referred  by  Hooker  and  Wilson  to  P.  sexangulare, 
misled  apparently  by  specimens  so  called  in  Herb.  Turn.,  Swartz  described 
his  P.  septentrionale  with  "  leaves  acute  at  apex,  serrulate,"  and  it  must  be 
referred  to  P.  alpinum,  as  is  well  shown  by  Lindberg. 


SECT.  3.     EUPOLYTRICHUM  C.  MUELL. 

Stems  taller ;  leaves  lanceolate,  acute.     Capsule  with  2 — 6  angles. 
5.     POLYTRICHUM  SEXANGULARE  Florke. 

Dioicous ;  simple,  erect.  Leaves  linear-lanceolate,  obtuse,  with 
the  margin  inflexed  and  quite  entire.  Capsule  ovate,  5 — 6  angled ;  lid 
rostrate.  (T.  VII,  A.) 

SYN. — Polytrichum  sexangulare  FLOERKE  in  HOPP.  Bot.  Taschenb.  1800,  pp.  43  et  150,  n.  4. 
STURM  Deutschl.  Fl.  ii,  4  (1800).  WEB.  MOHR  Bot.  Tasch.  220  (1807).  BRID.  Sp. 
muse.  II,  52  (1812)  ;  Mant.  muse.  196  (1819) ;  Bry.  univ.  ii,  145  (1827).  ROHL.  Deutsch. 
Fi.  iii,  58 ;  Ann.  Wett.  Ges.  iii,  218  (1814).  FUNCK  Moostasch.  68,  t.  54  (1821). 
WALLR.  Fl.  crypt,  germ,  i,  199  (1831).  BR.  SCHIMP.  Bry.  Eur.  iv,  mon.  7,  t.n  (1844)  ; 
Syn.  Muse.  443  (1860)  ;  et  2  ed.  540  (1876).  WILS.  Bryol.  brit.  209,  t.  10,  fig.  g  (1855). 
HARTM.  Skand.  Fl.  8  ed.  373,  p.p.  (1861).  BERK.  Handb.  Br.  m.  207,  t.  18,  f.  6  (1863). 
MILDE  Bry.  Siles.  251  (1869).  DE  NOT.  Epil.  Briol.  Ital.  333  (1869).  HOBK.  Syn.  br. 
m.  102  (1873). 
Pol.  crassisetum  LAM.  DE  C.  Fl.  franc.  3  ed.  ii,  486  (1805),  et  v,  224  (1815). 

Pol.  septentrionale  (non   SWTZ.)  P.  BEAUV.   Prodr.  86   (1805)  ?    Eng  Bot.  t.   1906  (1808). 

SCHWAEG.  Suppl.  I,  P.  II,  313,  excl.  syn.  (1816) ;  et  in  L.  Sp.  pi.  5  ed.  v,  P.  II,  p.  5  excl. 

syn.  (1830).      WALLM.  in   LIIJEBL.  Svensk  fl.  3  ed,  527,  p.p.   (1816).     HOOK.   TAYL. 

Muse.  br.  25,  t.  x,  p.p.  (1818).     HOOK.  Fl.  Scot.  P.  2,  126  (1821) ;  Brit.  Fl.  ii,  49  (1833). 

SOMM.  Suppl.  Fl.  lapp.  55,  p.p.   (1826).     HUEBEN.  Muse.  germ.  528,  excl.  syn.  (1833). 

DE  NOT.    Syll.   muse.  Ital.    160   (1838).         C.  MUELL.  Syn.  muse,  i,  223,  excl.  syn. 

(1848);  et  Deutsch.  moos.  171,  excl.  syn.  (1853).     RABEN.  Deutschl.  Krypt.  Fl.  ii,  P.  Ill, 

237,  p.p.  (1848). 
Pol.  helveticum  SCHLEICH.  cent.  Ill,  n.  16  (1815). 

Dioicous ;  widely  csespitose,  deep  green  above,  rufo-ferruginous 
below,  without  radicular  tomentum.  Stem  naked  at  base,  rigid, 
flexuose,  2 — 5  in.  high,  simple,  erect,  or  decumbent.  Leaves  short, 
gradually  elongating  as  they  ascend,  incurvo-patent  or  secund,  when 
dry  laxly  incumbent,  from  a  broad  base,  suddenly  elongato-lanceolate, 
quite  entire,  glossy,  rigid,  semiterete,  rather  obtuse,  smooth  at  back, 
margin  thin,  papery,  inflexed;  lamellae  high,  about  32,  each  in  section  of 
4 — 6  cells,  the  marginal  one  larger,  incrassate,  ovate,  smooth.  Perich. 
bracts  longer,  with  longer  sheaths.  Seta  bright  red,  thick.  Calyptra 
reaching  middle  of  capsule,  brownish.  Capsule  erect  or  inclined,  ovate 
with  6  obtuse  angles,  reddish  brown,  when  dry  hexagono-prismatic, 
pachydermous ;  hypophysis  obconic,  not  well  defined ;  lid  from  a 


POLYTRICHACE.E.]  52  [Polytrichum. 

convex-conic  reddish  base,  with  a  thick  yellowish  oblique  beak. 
Peristome  of  64  short  unequal  teeth,  pale  with  an  orange  median  line. 
Epicarpic  membrane  minutely  quadrate-areolate,  with  some  minute 
stomata  below. 

Male  plants  intermixed  ;    bracts  subquadrate,  pointed,   the  nerve 
with  a  few  lamellae  at  apex,  paraphyses  spathulate. 
HAS. — Wet  hollows  on  the  higher  Scotch  mountains.  Fr.  8 — 9. 

Ben  Nevis,  Ben  Macdhui  and  others  of  the  Cairngorm  range,  fruiting  sparingly.     Ben 
Lawers,  barren. 

Schwaegrichen,  Aongstroem  and  the  British  bryologists  refer  this 
species  to  P.  septentrionale  SWARTZ,  which  appears  without  doubt  to  be  only  a 
variety  of  P.  alpinum  that  has  been  confounded  with  it ;  (see  Bridel  Bry. 
univ.  ii,  pp.  132  et  146  for  a  clear  exposition  of  the  subject). 

6.    POLYTRICHUM  GRACILE  Dicks. 

Dioicous;  densely  csespitose.  Leaves  shorter,  lineal-lanceolate, 
the  wings  thin,  pellucid,  erect,  sharply  serrate.  Capsule  ovate,  obscurely 
6-angled,  narrowed  at  mouth  ;  lid  large,  with  a  long  slightly  obliquate 
beak.  (T.  VII,  B.) 

SYN. — Polytrichum  Cradle  DICKS.  MSS.     MENZ.  in  Trans.  Lin.  Soc.  iv,  73,  t.  6,  fig.  3  (1798). 

HULL  Br.  Flor.  P.  2,  247  (1799).      SMITH  Fl.  Brit,  iii,  1374   (1804)  ;    Eng.  Bot.  t.  1827. 

TURN.  muse.  Hib.  85  (1804).     WEB.  MOHR  Bot.  Tasch.  222  (1807).     MART.  Fl.  crypt. 

Erl.  83  (1817).     SCHWAEGR.  Suppl.  II,  167,  t.  148  (1824).     BRID.  Bry.  univ.  ii,  154  (1827). 

WALLR.  Fl.  crypt,  germ,  i,  201  (1831).     HUEBEN.  Muse.  germ.  530  (1833).     DE  NOT. 

Syll.  muse.  n.  208  (1838).     BR.  SCHIMP.  Bry.  Eur.  iv,  Mon.  10,  t.  xii  (1844)  ;  Syn.  muse. 

444  (1860),  et  2  ed.  540  (1876).     C.  MUELL.  Syn.  muse,  i,  225  (1849).     WILS.  Bry.  Brit. 

210,  t.  46  (1855).     BERK.  Handb.  Br.  m.  208  (1863).     LINDB.  in  Not.  ur  Sails.  Fn.  et  Fl. 

fenn.  fbrh.  ix,  127  (1867).     DE  NOT.   Epil.   Briol.  Ital.  332   (1869).     MILDE  Bry.  Siles. 

250  (1869).     HUSN.  Mouss.  nord-ouest  137  (1873).     HOBK.  Syn.  br.  m.  103  (1873). 
Pol.  longisetum  SWTZ.  Disp.  muse.  Suec.  76,  n.  4,  et  103,  n.  16,  t.  8,  f.  16  (1799).      BRID. 

Sp.  Muse.  I,  59  (1806);    Mant.  muse.   197  (1819).      SCHULTZ  Fl.   Starg.    286   (1806). 

ROEHL.  Deutsch.  Fl.  iii,  69,  et  in  Ann.  Wett.  Ges.  iii,  220  (1814).     SCHWAEGR.  Suppl.  I, 

P.  II,  316  (1816).     FUNCK  Moostasch.  69,  t.  56  (1821). 

Pol.  aiirantiacum  HOPPE  Bot.  Tasch.  1800,  pp.  139  et  151.     WAHLENB.  Fl.  Lapp.  345  (1812). 
Pol.  marginatum  WAHL.  MSS.    WEB.  MOHR  Ind.  mus.  pi.  crypt.  (1803).     BRID.  Sp.  muse. 

i,  59  (1806).     SCHWAEGR.  Suppl.  I,  P.  II,  329,  n.  24,  p.p.  (1816). 

Pol.  attenuatum  var.  ft.  aurantiacum  TURN.  Muse.  hib.  84  (1804). 
Pol.  nigrescens  LAM.  DEC.  Fl.  franc.  3  ed.  ii,  490  (1805). 

Pol.  commune  var.  (3.  attenuatum  HOOK.  TAYL.  Muse.  brit.  26,  p.p.  (1818).    Var.  ft.  auran- 
tiacum  WAHLENB.  Fl.  suec.  ii,  737,  p.p.  (1826). 

Pol.formosum  var.  ft.  aurantiacum  HARTM.  Skand  F1.4O4  (1820). 

Dioicous ;  densely  caespitose,  cohering  by  radicular  tomentum. 
Stems  i — 4  in.  high,  erect,  slender,  simple,  dividing  from  a  strongly 
flexuose  and  tomentose  base.  Leaves  sub-erect,  shorter,  dark  green, 
from  a  sheathing  base,  somewhat  channelled,  lineal-lanceolate,  with  a 
short  brown  point,  the  wings  thin,  pellucid,  erect,  sharply  serrate, 
rough  at  back  of  apex ;  lamellas  abount  42,  higher,  each  in  section 


POLYTRICHACE.E.]  53  [Polytrichum. 

of  4 — 6  cells,  all  equal  and  smooth.  Perich.  bracts  sheathing  up  to 
middle,  narrowly  subulate.  Capsule  on  a  long  orange  seta,  erect, 
when  dry  horizontal,  not  quite  covered  by  the  orange  calyptra,  ovate 
with  6  obscure  angles,  narrowed  at  mouth,  yellow,  leptodermous,  with 
an  obconic  not  very  distinct  hypophysis ;  lid  large,  red  bordered,  with 
a  long  slightly  obliquate  beak.  Teeth  32,  united  in  pairs,  or  64,  unequal, 
varying  in  length.  Spores  rather  large,  pale  ferruginous.  Male  plants 
with  shorter  leaves ;  bracts  obovate,  acuminate. 

HAB. — Dry   heaths  on  turfy  soil,  sides  of  peat  cuttings  and  sometimes  in 
clefts  of  rocks.     Not  uncommon.  Fr.  7. 

Ben  Nevis  (Dickson).  Oakmere  and  Knutsford  moor  (Wilson)  !  Halemoss,  Cheshire 
(Hunt)  !  !  Ingleboro  (Hooker).  Todmorden  (Nowell).  Chyandour  moor,  Penzance 
(Curnow).  Trowlsworthy  bog  (Brent). 

Resembles  P.  attenuatum  but  is  smaller  and  more  slender,  the  leaves 
shorter,  with  cells  twice  the  size,  and  with  broad  pellucid  margins,  and 
differing  also  by  the  obtuse-angled  capsule  and  beaked  lid.  The  latter 
characters  will  also  distinguish  it  from  P.  commune  var.  minus. 

7.     POLYTRICHUM  ATTENUATUM  Menz. 

Dioicous  ;  tall,  csespitose.  Leaves  from  a  glossy  sheathing  base, 
arcuato-patulous,  lineal-lanceolate,  plane ;  margin  sharply  serrate. 
Capsule  prismatic,  with  6  (sometimes  4  or  5)  angles,  pale,  leptodermous  ; 
lid  from  a  broad  base,  conico-acuminate.  (T.  VII,  C.) 

SYN. — Polytrichum  attenuatum   MENZ.  in  Trans.  Lin.  Soc.   iv,  72,  t.   6,  fig.  2   (1798).     SMITH 

Eng.   Bot.  t.   1198  (1803),  et  Fl.  brit.  Hi,  1373  (1804).     TURN.  Muse.   hib.  83    (1804). 

LINDB.  in  Not.  ur.  Sails.  Fn.  et  Fl.  fenn.  forh.  ix,  126  (1867). 
Pol.formosum  HEDW.  Sp.  muse.  92,  t.  19,  fig.  i  et  a.  (1801).     P.  BEAUV.  Prodr.  85  (1805). 

BRID.  Sp.  muse.  I,  55  (1806)  ;  Mant.  muse.  197  (1819)  ;  Bry.  univ.  ii,  151  (1827).     WEB. 

MOHR  Bot.  Tasch.  221   (1807).     WAHLENB.  Fl.  lapp.  345  (1812)  ;   Fl.  carp.  348  (1814). 

ROEHL.  Deuts.  Fl.  iii,  58,  et.  in  Ann.  Wett.  Ges.  iii,  219  (1814).     SCHWAEGR.  Suppl.  I, 

P.  II,  315  (1816).     MART.  Fl.  crypt.  Erl.  83  (1817).     SCHULTZ  Suppl.  Fl.  Starg.  87  (1819). 

FUNCK  Moostasch.  69,  t.  55  (1821).     WALLR.   Fl.  crypt,  germ,  i,  200   (1831).     HUEBEN. 

Muse.  germ.  536  (1833).     BALS.  DE  NOT.   Pr.  Bry.  med.  20  (1834).     DE    NOT.  Syll. 

muse.  n.  207  (1838).     FIOR.  MAZ.  Briol.  rom.  2  ed.  29   (1841).     Br.  SCHIMP.   Bry.  Eur. 

iv,  Mon.  9,  t.  xii  (1844)  ;  Syn.  Muse.  445   (1860),  et  2  ed.  541   (1876).     C.  MUELL.   Syn. 

muse,  i,  224  (1849).     WILS.  Bry.  Brit.  210,  t.  46  (1855).      BERK.   Handb.  Br.  m.  208 

(1863).     MILDE  Bry.  Siles.  250  (1869).     DE  NOT.  Epil.  Briol.  Ital.  331   (1869).     HOBK. 

Syn.  br.  m.  103  (1873).     HUSN.  mouss.  nord-ouest  136  (1873). 
Pol.  pallidisetum  FUNCK  in  HOPP.  Bot.  Tasch.  1802,  p.  44  ;    Moostasch.  69,  t.  55.     BRID. 

Sp.  muse.  I,  58;  Mant.  muse.  197. 
Pol.  commune  var.  ft.  attenuatum  HOOK.  TAYL.  Muse.  brit.  26,  p.p.  (1818)  ;  Brit.  Fl.  ii,  49 

(J833). — Var.  ft.  aurantiacum  WAHLENB.  Fl.  suec.  ii,  p.  737,  p.p.  (1826). 
Pol.  aurantiacum  var.  ft-  WAHLENB.  Fl.  upsal.  387  (1820). 
Pol.formosum  a.  quadrangularc  HARTM.  Skand.  Fl.  404  (1820). 

Dioicous;  tall,  laxly  csespitose,  bright  green.  Stem  3 — 6  in.  high, 
simple,  erect  or  ascending  from  a  decumbent  tomentose  base.  Lower 
leaves  minute,  membranous  with  a  patent  cuspidate  point  ;  upper  from 
a  glossy,  longly  sheathing  whitish  base,  arcuato-patulous,  when  dry 
laxly  incumbent,  longly  lineal-lanceolate,  plane,  opake,  margin  erect, 


POLYTRICHACE.E.]  54  [Polytnchwn. 

sharply  serrate  to  base;  lamellae  very  low  and  close,  about  60,  each  in 
section  of  a  row  of  3 — 4  cells,  equal  in  size  and  smooth.  Perich.  bracts 
very  long,  erect,  with  long  sheaths,  lamellose  only  toward  apex.  Seta 
long,  reddish  yellow.  Calyptra  covering  all  capsule,  fulvous  brown. 
Capsule  erect  when  moist,  cernuous  when  dry,  finally  horizontal, 
prismatic  with  6 — rarely  5  or  4 — angles,  and  an  obconic  rather  indistinct 
hypophysis,  pale  yellow  green,  finally  fawn-colored,  leptodermous  ;  lid 
from  a  broad  base  with  a  purple  margin,  conico-acuminate.  Teeth  64, 
pale  yellow,  short.  Spores  very  small,  dark  yellow.  Male  plants 
shorter  and  more  slender,  bracts  cuspidate. 
HAB. — Dry  woods  in  subalpine  districts.  Common  in  the  north.  Fr.  6 — 7. 

This  species  is  at  first  sight  often  mistaken  for  P.  commune,  but  is  a 
more  delicate  plant,  easily  distinguished  by  its  soft,  less  quadrangular 
capsule,  without  a  distinct  perichaetium. 

P.  pallidisetum  is  only  a  form  with  shorter  stems,  straighter  leaves,  and 
narrower  and  longer  capsule. 

8.     POLYTRICHUM  PILIFERUM  Sckreb. 

Dioicous ;  laxly  caespitose.  Stems  short,  simple,  naked  below, 
densely  comoso-leafy  above  ;  leaves  elongate-lanceolate,  wings  inflexed, 
entire,  nerve  prolonged  into  a  rough  hoary  hair-point.  Capsule  tetra- 
gonous;  lid  depresso-conic,  rostellate.  (T.  VIII,  A.) 

SYN. — Muscus  trichoides  minor  follis  oblongis,  &c.     RAY  Synops.  2  ed.  2g,  n.  5  (1696). 

Polytrichum  quadrangulare  minus,  juniperifoliis  pilosis  DILL.  Hist.  muse.  426,  t.  54,  fig.  3 
(1741)  et  Herb. 

Pol.  commune  var.  y.  L.   Sp.  PI.  ii,  1109  (1753).     HUDS.  Fl.  angl.  400  (1762).     WITHER. 
Arr.  Br.  Veg.  ii,  662  (1776).      Var.  y.  pilosum  WEISS  PI.  cr.  fl.  gott.  172  (1770). 

PoLpilifernm  SCHREB.  Spic.  fl.  lips.  74  (1771).     BRID.  Muse.  rec.  ii,  P.  I,  85  (1792) ;    Sp. 

muse.  I,  52  (1806)  ;  Mant.  muse.  196  (1819) ;  Bry.  univ.  ii,  142  (1827).     SIBTH.  Fl.  Oxon. 

306  (1794).     HOFFM.  Deuts.  Fl.  ii,  21  (1796).     ROTH  Fl.  Germ,  i,  457  et  iii,  348.     MENZ. 

Trans.  Linn.  Soc.  iv,  75  (1798).      SWARTZ  Muse.  suec.  76  (1798).     HULL  Br.  Fl.  P.  2, 

247  (i799)-     ROHL.  Moosg.  Deuts.  181  (1800)  ;    Deutsch.  Fl.  iii,  58  (1813) ;    Ann.  Wett. 

ges.  iii,  217  (1814).      HOPPE  Bot.  Tasch.   148  (1800).      HEDW.   Sp.  muse.  90   (1801). 

SMITH   Fl.    Brit,  iii,  1374    (1804)  ;    Eng.    Bot.    1199.      TURN.    Muse.    Hib.    82    (1804). 

P.  BEAUV.  Prodr.  86  (1805).     LAM.  DEC.  Fl.  franc.  3  ed.  ii,  488  (1805).      SCHULTZ  Fl. 

Starg.  287  (1806).     WEB.  MOHR  Bot.  Tasch.  118  (1807).     VOIT  Muse.  herb.  59  (1812). 

WAHLEN.  Fl.  Lapp.  243  (1812)  ;    Fl.  carp.  347  (1814).     SCHWAEGR.  Suppl.  I,  P.  2,  313 

(1816).     MART.  Fl.  cr.   Erlang.  82   (1817).     HOOK.  TAYL.  Muse.   Brit.  24,  t.  x  (1818). 

HOOK.  Fl.  Scot.   P.  2,  125  (1821)  ;    Brit.  Fl.  ii,  48  (1833).     FUNCK  Moostasch.  68,  t.  54 

(1821).     WALLR.  Fl.  crypt,  germ.  i.   199   (1831).     HUEBEN.  Muse.  germ.   524    (1833). 

BALS.  DE  NOT.  Pr.  Bry.  mediol.  18   (1834).     MACKAY  Fl.  Hib.  P.  2,  27  (1836).     BR. 

SCHIMP.  Bry.  Eur.  iv,  Mon.  n,  t.  xiv  (1844)  ;  Syn.  Muse.  446  (1860),  et  2  ed.  542  (1876). 

C.  MUELL.  Syn.  Muse,  i,  217  (1849).     WILS.  Bry.  Brit.  213,  t.  x  (1855).     BERK.  Handb. 
.      Br.  m.  208  (1863).     LIND.  Not  ur  Sails.   Fn.  et   Fl.  fenn.  ix,  124  (1867).     MILDE  Bry. 

Siles.  252  (1869).     DE  NOT.  Epil.  Briol.  Ital.  335  (1869).     HUSN.  Mouss.  nord-ouest  137 

(1873).     HOBK.  Syn.  br.  m.  104  (1873). 

Pol.  pilosum  NECK.  Meth.  muse.  123  (1771).     SCHRANK  Baiers.  Fl.  ii,  446  (1789). 
Pol.  commune  /?.  pilosum  EHRH.  Hann.  Mag.  235  (1780). 
Pol.  pilifoliinii  GRAY  Nat.  arr.  Br.  pi.  i,  720  (1821). 


PoLYTRiCHACEyE.J  55  [Polytrichwn. 

Dioicous;  laxly  csespitose,  glaucous  green  above,  fuscescent  below; 
rhizome  subterranean,  flexuose,  branched  and  densely  tomentose. 
Stems  short,  i  in.  high,  erect,  simple,  naked  below;  lower  leaves  very 
small,  ovate,  appressed,  upper  suddenly  larger,  erecto-patent,  when  dry 
imbricated  and  forming  a  clavate  penicillate  head,  from  an  ovate, 
coloured,  sheathing  base,  elongate-lanceolate,  the  wings  inflexed, 
connivent,  entire,  with  wide  rectangular  areolation,  the  apex  smooth  at 
back ;  the  nerve  prolonged  into  a  serrate  hoary  hair-like  arista ;  lamellae 
low,  about  32,  each  in  section  of  a  row  of  4 — 6  cells,  the  marginal  one 
larger,  with  a  large  papilla  at  apex,  and  hence  somewhat  cruciate. 
Perich.  bracts  lineal-lingulate,  erect,  very  concave,  innermost  thin, 
without  lamellae,  all  longly  aristate.  Seta  purple.  Calyptra  reaching 
below  capsule,  fulvous  with  paler  fringe.  Capsule  tetragono — ovate, 
erect,  cernuous  when  dry,  finally  horizontal,  pachydermous,  pale  brown; 
hypophysis  narrow,  conoid,  purple;  lid  depresso — conic,  shortly 
rostellate,  orange  or  red.  Teeth  64,  shortish,  regular,  with  an  orange 
median  line.  Spores  very  small,  ferruginous. 

Male  plants  have  leaves  more  lax,  with  shorter  awns ;  inflor.  rosy 
purple,  orange  or  green,  bracts  obcordate,  apiculate,  lamellose  at  apex. 
HAS. — On  dry  heaths  ;  very  common.  Fr.  5 — 6. 

Pol.  Hoppei  HORNSCH.  is  an  alpine  form  with  lingulate  leaves,  long  very 
rough  hair-points  and  cubic  capsules.  Pol.  hyperboreum  R.  BR.  appears  to  be 
a  good  species,  confined  to  arctic  Europe  and  America,  having  the  leaf  cells, 
three  times  the  size  of  those  of  P.  piliferum  and  the  capsule  leptodermous  and 
flattened  as  in  P.  commune. 

g.    POLYTRICHUM  JUNIPERINTJM  Willd. 

Dioicous ;    gregarious,    glaucescent.      Leaves    patulous   and    sub- 
recurved,   lineal-lanceolate,  the  wings  inflexed,  entire,  nerve  excurrent 
in  a  short  reddish  awn.     Capsule  tetragono-prismatic,  pachydermous ; 
lid  plano-convex,  rostellate.     (T.  VIII,  B.) 
SYN.— Adiantum  aureum  pileolo  villoso,  medium  RAY  Syn.  Stirp.  Br.  2  ed.  28  (1696). 

Polytrichum  montanum  et  minus,  capsula  qurdrangulari  DILL.  cat.  giss.  221  (1719)  ;  et  in 

RAY  Syn.  3  ed.  90  (1724). 

Pol.  quadrangulare  junlperi  foliis  brcvioribus  et  rigidioribus  DILL.  Hist.  Muse.  424,  t.  54, 
f.  2  (1741). 

Pol.  commune  var.  (3.  L.  Sp.  PI.  ii,  1109,  p.p.  (1753).     HUDS.  Fl.  Angl.  400  (1762).    Var.  /?. 

minus  WEISS  Crypt,  gott.  171,  p.p.   (1770).     NECK.  Meth.  muse.  125   (1771).     WITH. 

Bot.  arr.  Br.  Veg.  ii,  662  (1776).     LIGHTF.  700  (1777).     RELH.  Fl.  Cant.  397  (1785). 
Pol.  commune — -juniper  if olium  EHRH.  in  Hann.  Mag.  235  (1780). 
Pol.  juniper  mum  WILLD.  Fl.  berol.  prodr.  305  (1787).    ROTH.  Fl.  germ  i,  457  (1788) ,  et  iii,  348. 

BRID.  Muse.  rec.  ii,  P.  I,  83  (1792) ;  Sp.  muse.  1, 47  (1806)  ;  Mant.  muse.  194  (1819) ;  Bry. 

univ.  ii,  136  (1827).    SIBTH.  Fl.  oxon.  306  (1794).    ABBOT  Fl.  bedf.  232  (1798).    MENZ.  Tr. 

Linn.  Soc.  iv,  76,  t.  6,  f.  4  (1798).     SWARTZ  Muse.  suec.  77  (1798).     ROHL.  Moosg.  Deuts. 

170  (1800)  ;  Deutsch.  fl.  iii,  57  (1812) ;  Ann.  Wett.  ges.  iii,  215  (1814).     HEDW.  Sp.  muse. 


POLYTRICHACE^E.]  56  [Polytrichum. 

89,  T.  18,  f.  6—io  (1801).  SMITH  Fl.  Brit,  iii,  1375  (1804)  ;  Eng.  Bot.  1200.  TURN. 
Muse.  Hib.  82  (1804).  P.  BEAUV.  Prodr.  352  (1805).  LAM.  DEC.  Fl.  franc.  3  ed.  ii, 
489  (1805).  SCHULTZ  Fl.  Starg.  285  (1806).  WAHLENB.  Fl.  lapp.  341  (1812) ;  Fl.  carp. 
348  (1814).  SCHWAEGR.  Suppl.  I,  P.  2,  309  (1816).  HOOK.  TAYL.  Muse.  Brit.  27,  t.  x 
(1818).  FUNCK  Moostasch.  68,  t.  54  (1821).  HOOK.  Fl.  Scot.  P.  2,  126  (1821)  excl.  syn., 
Brit.  Fl.  ii,  49  (1833).  GREV.  Mem.  Wern.  soc.  iii,  436  (1821).  GRAY  Nat.  arr.  Br.  pi. 
i,  720  (1821).  WALLR.  Fl.  crypt,  germ,  i,  200  (1831).  HUEBEN.  Muse.  germ.  532 
(1833).  BALS.  DE  NOT.  Pr.  Bry.  Med.  18  (1834).  MACK.  Fl.  Hib.,  P.  2,  28  (1836).  DE 
NOT.  Syll.  muse.  n.  204  (1838).  BR.  SCHIMP.  Bry.  Eur.  iv,  Mon.  12,  t.  xv  (1844) ;  Syn. 
muse.  447  (1860),  et  2  ed.  543  (1876).  RABENH.  Deutsch.  Krypt.  Fl.  ii,  P.  3,  238  (1848). 
C.  MUELL.  Syn.  muse,  i,  218  (1849).  WILS.  Bry.  Brit.  213,  t.  x  (1855).  BERK.  Handb. 
Br.  m.  209,  t.  18,  f.  7  (1863).  LINDB.  in  Not.  ur  Sails.  Fn.  et  Fl.  fenn.  forh.  ix,  122 
(1867).  MILDE  Bry.  Siles  253  (1869).  DE  NOT.  Epil.  Briol.  Ital.  334  (1869).  HOBK. 
Syn.  br.  m.  104  (1873).  HUSN.  Mouss.  nord-ouest  137  (1873). 

Pol.  juniperifolium  HOFFM.  Deutsch.  Fl.  ii,  24  (1795).  HOPPE  Journ.  Bot.  146  (1800). 
WEB.  MOHR  Bot.  Tasch.,  219  (1807).  MART.  Fl.  Cr.  Erl.  82  (1817).  ZENK.  DIETR. 
Muse.  Thuring.  n.  10  (1821). 

Pol.  implicatum  VOIT  Muse,  herbip.  59  (1812). 

Dioicous ;  gregarious,  glaucous  green  above,  fuscescent  below ; 
rhizome  flexuose,  densely  radiculose.  Stem  erect  i — 6  in.  high,  rarely 
2  or  3  partite.  Leaves  when  moist  patulous  and  subrecurved,  when  dry 
erect,  the  lower  squamose,  appressed,  the  upper  long,  lineal-lanceolate, 
semiterete-subulate,  the  wings  inflexed,  subconnivent,  quite  entire, 
nerve  excurrent  in  a  short  reddish  arista,  muricate  at  back;  lamellae 
yellow-green,  low,  dense,  about  48,  each  in  section  of  a  row  of  4 — 6  cells, 
the  marginal  one  larger,  cruciform  from  having  a  tooth-like  papilla  at 
apex.  Perich.  bracts  longer,  convolute,  membranous  at  margin,  with  a 
long  rough  arista.  Capsule  on  a  purple  seta,  entirely  covered  by  the 
rufous  calyptra,  tetragono-prismatic,  erect,  pachydermous,  rufous- 
orange,  finally  brown  and  horizontal,  with  a  purple  shield-like 
hypophysis;  lid  plano-convex,  rostellate,  rufous  with  a  deep  red  margin. 
Teeth  64,  rather  short,  pale  yellowish. 

Male  plants  intermixed,  more  slender,  with  shorter  leaves;  outer 
bracts  ovate,  strongly  mucronate,  innermost  thin,  truncate,  pointed. 

HAB. — Wet  heaths  and  bare  places  in  woods  ;  not  uncommon.  Fr.  6 — 7. 

This  plant  varies  much  in  size  and  also  in  the  colour  of  the  calyptra, 
which  at  great  elevations  is  sometimes  quite  white. 

Dillenius  by  some  mistake  has  figured  the  leaf  as  serrated,  and  the  plant 
in  his  herbarium  is  P.  strictum  $  . 

10.    POLYTRICHUM   STRICTUM  Banks. 

Dioicous  ;  resembling  P.  juniperinum  but  taller,  and  more  slender 
with  densely  tomentose  stems;  the  leaves  shorter,  erecto-patent, 
straight.  Capsule  small,  cuboid.  (T.  VIII,  C.) 

SYN.— Pol.  strictum  BANKS  MSS.  MENZ.  in  Trans.  Lin.  Soc.  iv.  77,  t.  7,  fig.  i  (1798).  HULL 
Br.  Fl.  P.  2,  247  (1799).  SMITH  Fl.  Brit,  iii,  1376  (1804)  ;  Eng.  Bot.  t.  2435  (1812). 
TURN.  Muse.  hib.  83  (1804).  LAM.  DEC.  Fl.  gall.  n.  1274  (1805).  BRID.  Sp.  muse.  I,  49 


POLYTRICHACE^;.]  57  \Polytrichum. 

(1806);  Mant.  muse.  195  (1819),  et  Bry.  univ.  ii,  139  (1827).  MILDE  Bry.  Siles.  253 
(1869).  HOBK.  Syn.  Br.  m.  104  (1873).  HUSN.  Mouss.  nord-ouest  137  (1873).  SCHIMP. 
Syn.  Muse.  448  (1860),  et  2  ed.  544  (1876). 

Pol.  alpcstre  HOPPE  Bot.  Tasch.  198  (1801).  BRID.  Sp.  muse,  I,  50  (1806)  ;  Mant.  muse. 
195  (1819)  ;  Bry.  univ.  ii,  140  (1827).  SCHWAEGR.  Suppl.  I,  P.  2,  310  (1816).  SCHULTZ 
Fl.  Starg.  Suppl.  88  (1819).  WALLR.  Fl.  crypt,  germ,  i,  199  (1831).  HUEBEN.  Muse. 
germ.  533  (1833). 

Pol.  junipcrinum  var.  WEB.  MOHR  Bot.  Tasch.,  220  (1807).  —  Var.  A.  strictum  WALLM. 
in  LILJEBL.  Svensk  Fl.  3  ed.  527  (1816).  —  Var.  (3.  gracilius  WAHLEN.  Fl.  lapp.  344 
(1812).  —  Var.  ft.  strictum  HARTM.  Skand.  Fl.  404  (1820).  C.  MUELL  Syn.  muse,  i,  218 
(1849).  —  Var.  ft.  strictum  et  y.  alpestre  BR.  SCHIMP.  Br.  Eur.  iv,  Mon.  12,  t.  16  (1844). 
DE  NOT.  Epil.  Briol.  Ital.  334  (1869).  WILS.  BERK.,&C.  Var.  (3.  alpestre  HARTM.  op. 
cit.  5  ed.  361  (1849).  *P.  strictum  LINDB.  in  Ofv.  W.  Ak.  Forh.  xxiii,  548  (1866),  et 
NOT.  ur  Sallsk.  Fn.  et  Fl.  fenn.  forh.  ix,  123  (1867). 

Dioicous  ;  resembling  P.  juniperinum,  pale  glaucous  green,  slender, 
densely  caespitose,  branched.  Stems  3  —  12  in.  high,  interwoven  by 
dense  dirty  white  tomentum.  Leaves  erecto-patent,  straight,  imbricated 
when  dry,  shorter  and  narrower;  lamellae  about  32,  less  developed. 
Capsule  small,  cubic,  acutely  angular,  rufous  orange.  Calyptra 
brownish  or  whitish. 
HAS.  —  Boggy  heaths.  Less  frequent.  Fr.  5  —  6. 

Near  Taymouth  on  tops  of  walls  (Menzies).  Forfar  (Don  1802).  Ben  Lawers  and  Glen 
Callater  (Hunt)  !  !  Ben  Vracky,  Perth  (Boswell)  !  !  Herringfleet,  Suffolk  (Turner  1806). 
Scawfell  and  Witherslack  (Boswell).  Micklefell,  Yorks.  (Baker)  !  !  Todmorden  and 
Cliviger  (Nowell).  Knutsford  moor  and  Wybunbury  bog  (Wilson). 

Much  as  this  differs  in  appearance  from  P.  juniperinum,  I  confess  to  be 
more  in  accord  with  the  authors  who  regarded  it  as  a  variety  of  that  species, 
for  it  will  be  seen  there  are  no  structual  differences  between  them.  Lindberg 
calls  it  a  subspecies  of  P.  junipeyinum,  to  which  it  stands  in  the  same  relation 
as  P.  Swartzii  to  P.  commune. 

ii.     POLYTRICHTJM   COMMUNE  L. 

Dioicous  ;  very  tall,  simple.  Leaves  very  long,  patent  recurved, 
linear-subulate,  plane,  spinuloso-serrate,  scabrous  at  back.  Capsule 
tetraedral,  with  a  discoid  hypophysis  ;  lid  depresso-convex,  conico- 
rostellate.  (T.  IX.) 

SYN.  —  Polytrichum  vulgareet  majus,  capsula  quadrangulari  DILL.  Cat.  Giss.  221,  App.  85  (1719), 
et  in  RAY  Synops.  3  ed.  90,  i  (1724). 

Polyt.  quadrangulare  vulgare,  yucca  foliis  serratis  DILL.  Hist.  muse.  420,  i,  T.  54,  fig.  i 
(1741),  et  Herb. 

Pol.  commune  a.  L.  Sp.  PI.  ii,  1109,  n.  i  (1753)  ;  Syst.  Nat.  ii,  700  ;  Fl.  suec.  n,  966.  HUDS. 
Fl.  angl.  399  (1762).  SCHREB.  Spic.  Fl.  Lips.  73  (1771).  NECK.  Meth.  muse.  124 


(1771).     WITH.  Bot.  arr.  Br.  veg.  662  (1776).     LIGHTF.  Fl.  Scot,  ii,  698  (1777).     RELH. 
Fl.  Cant.       6     18.     WILLD.  Pr.  Fl.   Berol.  n.     00    18.     SIBTH.   Fl.   O 

(179 
Linn.  Soc.  iv,  74  (1798)  ;  Roth.  Fl.  germ,  i,  456  (1788),  et  iii,  346.     SWARTZ  Muse.  suec. 


Cant.  396   (1785).     WILLD.  Pr.  Fl.   Berol.  n.  900  (1787).     SIBTH.   Fl.   Oxon.  305 
(1794).     ABBOT  Fl.  bedf.  232  (1798).     HOFFM.   Deutsch.  Fl.  ii,  23    (1796).     MENZ.  Tr. 


75  (1798).  BRID.  Muse.  rec.  ii,  P.  I,  81  (1792)  ;  Sp.  muse.  I,  54  (1806)  ;  Mant.  muse. 
197(1819);  Bry.  univ,  ii,  148  (1827).  ROHL.  Moosg.  Deutsch.  170  (1800);  Deutsch. 
Fl.  iii,  58  (1813)  ;  Ann.  Wett.  ges.  iii,  219  (1814).  SMITH  Fl.  Brit,  iii,  1372  (1804)  ; 
Eng.  Bot.  1197.  TURN.  Muse.  Hib.  80  (1804).  P.  BEAUV.  Prodr.  85  (1805).  LAM. 
DEC.  Fl.  franc.  3  ed.  ii,  487  (1805).  SCHULTZ  Fl.  starg.  285  (1806).  WAHLENB.  Fl. 
lapp.  344  (1812)  ;  Fl.  carp.  348  (1814).  SCHWAEGR.  Suppl.  i,  P.  2,  314  (1816).  HOOK. 


POLYTRICHACE^.]  58  [Polytrichuw . 

TAYL.  Muse.  Brit.  26,  t.  x  (1818).  FUNCK  Moostasch.  69,  t.  55  (1821).  GRAY  Nat.  arr. 
Br.  pi.  i,  721  (1821).  ZENK.  DIETR.  Muse.  Thuring.  n.  33  (1822).  WALLR.  Fl.  crypt, 
germ,  i,  201  (1831).  HUEBEN.  Muse.  germ.  535  (1833).  BALS.  DE  NOT.  Pr.  Bry.  mediol. 
18  (1834).  DE  NOT.  Syll.  mus.  n.  206  (1838).  BR.  SCHIMP.  Bry.  Eur.  iv,  Mon.  13,  t. 
xvii  (1844) ;  Syn.  muse.  448  (1860) ;  et  2  ed.  545  (1876).  C.  MUELL.  Syn.  muse,  i,  220 
(1849).  WILS.  Bry.  Brit.  211,  t.  x  (1855).  BERK.  Handb.  Br.  m.  209  (1863).  MILDE 
Bry.  Siles.  252  (1869).  DE  NOT.  Epil.  Bry.  Ital.  329  (1869).  HOBK.  Syn.  br.  m.  103 
(1873).  HUSN.  Mouss.  nord-ouest  136  (1873). 

Pol.  commune  a.  majus  WEISS- Crypt,  getting.  168  (1770). 

a.  serrulatum  RETZ.  Fl.  Scand.  ii.  209  (1779). 

.  a.  yucccefolium  EHRH.  in  Hann.  mag.  235   (1780).      HOOK.  TAYL.  Muse. 

brit.  26,  T.  10  (1818). 
Pol.  yucccefolium  EHRH.   PI.  crypt,  n.  214,  et  Beitr.  vii,  101   (1792).     WEB.  MOHR  Bot. 

Tasch.  221  (1807).    VOIT  Muse,  herbip.  58  (1812).     MART.  Fl.  cr.  Erl.  83  (1817). 
Pol.  serratum  SCHRANK  Bayer.  Fl,  ii,  446  (1789)  ;  et  Prim.  fl.  salisb.  223  (1792). 
Pol.  propinquum  R.  BR.  in  Parry  Voyage,  Suppl.  294  (1824). 
Pol.  quadrangulare  GILIB.  ;  e  STEUD.  Nomen.  crypt.  353  (1824). 

Dioicous ;  very  tall,  laxly  caespitose,  in  large  deep  green  patches, 
rufescent  below.  Stem  6— 18  in.  high,  flexile,  trigonous,  tomentose  at 
base,  simple,  rarely  forked.  Lower  leaves  lax,  scale-like,  fulvous, 
shining,  from  an  oblong  base,  subulato-setaceous,  rough  at  apex,  the 
upper  very  long,  patenti-recurved  or  squarrose,  erect  and  appressed 
when  dry  with  the  apex  flexuose,  from  a  sheathing,  submembranous, 
glossy  whitish  base,  linear-subulate,  plane,  the  wings  very  narrow, 
densely  spinuloso-serrate  to  the  base,  above  scabrous  at  back ;  lamellae 
with  the  margin  thickened  and  grooved,  occupying  nearly  all  leaf,  about 
60,  low,  straight,  each  in  section  of  a  row  of  4 — 6  cells,  the  marginal 
broader,  incrassate,  subquadrate,  semilunar  at  top ;  perich.  bracts 
erect,  very  long,  sheathing,  the  internal  membranous,  the  nerve  without 
lamellae,  prolonged  into  a  short  bristle.  Seta  very  long,  orange-red. 
Calyptra  extending  below  the  capsule,  ferruginous  with  a  silky  gloss. 
Capsule  tetraedral,  acute-angled,  somewhat  flattened  horizontally, 
pachydermous,  rufo-fuscous,  at  first  erect,  horizontal  when  dry  and 
empty ;  hypophysis  annular ;  lid  from  a  depresso-convex  base,  conico- 
rostellate,  rufous  red  at  margin  ;  teeth  64,  small,  rather  broad,  on  a 
yellowish  basal  membrane.  Spores  very  small,  rufous. 

Male   plants  shorter,    less   comose ;    the   infl.    discoid,   repeatedly 
proliferous     from    the    centre,    bracts    subcuneate-ovate,    mucronate, 
denticulate,  lamelligerous  at  apex ;  paraphyses  very  numerous  and  long, 
filiform  and  spathulate. 
HAB. — Marshy  places  on  turf-moors.     Common.  Fr.  6 — 7. 

Var.  p.  Perigoniale  (Michx.)  Br.  Schp. 

Stem  shorter,  simple ;  inner  perichsetial  bracts  longer,  quite  entire ; 
leaves  nearly  smooth  at  back. 

SYN.— Polytr.  perigonlah  MICHX.  Fl.  bor.-amer.  ii,  293  (1803).   BRID.  Sp.  muse.  54;  Mant.  muse. 
197  ;  et  Bry.  univ.  ii,  150. 


POLYTRICHACE^.]  59  [Polytrickum. 

Pol.  yucccefolium  Var.  ft.  perigoniale  MART.  Fl.  crypt,  erlang.  83  (1817). 

Pol.  commune  a.  campestre  WALLR.  Fl.  crypt.  Germ,  i,  201  (1831). — Var.  ft.  campestre 
HUEBEN.  Muse.  Germ.  535. — Var.  ft.  perigoniale  BR.  SCHP.  Br.  Eur.  iv,  Mon.  13,  t.  17, 
fig.  ft.  et  Syn.  muse.  WILS.  Bry.  Brit.  212.  LINDB,  op.  c.  117. 

HAB. — Drier  places  on  moors. 

Newchurch  bog  and  Woolston  moss  (Wilson)  \ 
Var.  y.  Minus  Weiss. 

Plants  shorter  and  more  slender  ;  leaves  dense,  shorter  and  more  erect, 
perich.  bracts  less  distinct.  Capsules  much  smaller  and  shorter,  less  acutely 
quadrangular,  lid  with  a  short  straight  beak,  calyptra  pale  golden  brown. 

SYN.— Pol.  commune  Auct.  ant.  p.p.— Var.  ft.  L.  Sp.  pi.  ii,  1109,  p.p.— Var.  ft.  minus  WEISS  PI. 
crypt,  gott.  171,  p.p.  LIGHTF.  Fl.  Scot,  ii,  700.  DE  NOT.  Syll.  muse.  Ital.  163.— Var.  ft. 
humile  SWTZ.  Adnot.  hot.  141. — Var.  y.  minus  BR.  SCH.  Bry.  Eur.  iv,  mon.  13. 
C.  MUELL.  Synops.  i,  221.  WILS.  Bry.  brit.  212.  SCHPR.  Coroll.  92. — Var.  y.  humile 
SCHPR.  Synops.  449,  et  2  ed.  546. — Var.  8.  minus  RABENH.  Deutsch.  Krypt.-Fl.  ii, 
P.  Ill,  239.  GIRGENS.  Naturg.  Moos.  Livl.,  &c.,  365. 
Pol.  yucccefolium  HOPP.  in  Sturm  Deutsch.  Fl.  ii,  4  p.p. 

*  Pol.  cubicum  LINDB.  in  Not.  ur  Sa'llsk  Fl.  Fn.  fenn.  ix,  117. 

HAB. — Wet  heaths.     Not  uncommon.     Oakmere.     (Wilson]  \  \ 

Regarded  by  Lindberg  as  a  subspecies,  and  named  cubicum,  reaching  he 
says  a  height  of  i  foot,  and  corresponding  to  the  *P.  strictum  in  its  relation  to 
the  typical  species. 

Var.  8.  Fastiglatum  (Lyle.]  Wils. 

Stems  taller,  fastigiate-branched,  densely  tufted  ;  leaves  shorter,  a  little 
recurved  at  apex  when  dry,  more  deeply  channelled,  with  higher  lamellas  ; 
capsule  smaller,  cubical. 

SvK.—Polytr.fastigiatum  LYLE  MSS. 

Pol.  commune  Var.  y  ft.  fastigiatum  WILS.  Bry.  brit.  212. 

*  Pol.  cubicum  Var.  y.  fastigiatum  LINDB.  in  Not.  ur  Sallsk.  Fn.  et  Fl.  fenn.  forh.  ix,  119. 

HAB. — Dry  moors  in  mountain  districts. 

Near  Airth,  Scotland  (T.  Lyle  1849)  !  Cliviger  moor,  Keb  Clough  and  Longfield  moor 
(Nowcll  1849)  !  !  Winslade,  Hants.  (Hill  1861)  !  Easterside,  Yorks.  (Baker  1855). 
Appleton,  Lane.  (Wilson)  ! 

This  appears  to  be  a  form  depending  on  arrest  in  the  line  of  growth,  and 
a  corresponding  state  is  met  with  in  other  species,  as  P.  juniperinum,  urnigerum 
and  piliferum,  sometimes  each  innovation  bearing  a  capsule,  so  that  we  see 
ten  or  twelve  on  one  root. 

Few  mosses  offer  better  material  than  P.  commune,  for  an  examination 
of  the  various  organs  ;  thus  the  beautiful  rosette-shaped  male  inflorescence  is 
easily  dissected,  and  the  antheridia  when  fully  perfected  afford  an  abundant 
supply  of  active  antherozoids,  readily  seen  by  a  sufficient  magnifying  power, 
the  paraphyses  also  both  of  the  filiform  and  spathulate  kind  being  well 
developed.  The  calyptra  when  stripped  of  its  villose  indumentum,  will  be 
seen  to  be  small  and  cucullate,  and  in  its  early  stage  will  show  that  this 


POLYTRICHACE^E.]  60  [Polytrichum. 

elegant  coat  of  long  hairs  is  produced  with  great  rapidity,  and  chiefly  from 
the  apex  of  the  organ.  The  capsule  shows  small  stomata  in  the  cuticle  above 
the  hypophysis,  and  on  section  we  observe  the  corrugated  spore  sac, 
suspended  externally  from  the  lining  of  the  capsule  and  internally  from  the 
columella  by  numerous  delicate  cellular  threads. 

In  addition  to  the  description  of  the  epiphragm  already  given,  it  may  be 
mentioned  that  in  P.  attenuatum,  gracile  and  sexangulare,  there  is  also  a  thick 
intramarginal  ring  beneath. 


TAB.  V. 

A.  Catharinea  angustata. 

a.  female  plant  (Doune,  McKinlay).    b.  male  plant  (Hurst,  Mitten). 

B.  Catharinea  undulata. 

a.  typical  form  (Abbey  wood, Braithwaite').    ft.  var.  minor  (Ashton,  Hunt). 

C.  Catharinea  crispa. 

a.  female  plant  (New  Jersey,  James),     b.  male  plant  (Hebden  bridge,  Hobkirk).     ft.  var. 
densifolia  $   (Oakmere,  Wilson). 

D.  Oligotrichum  incurvum. 

a.  b.  female  and  male  plant  (Ben  Lawers,  Braithwaite). 

TAB.  VI. 

A.  Polytrichum  subrotundum. 

a.  b.  female  and  male  plant  (Virginia  water,  C.  F.  White),     ft.  var.  longisetiim  (Ditto). 

B.  Polytrichum  aloides. 

a.  b.  female  and  male  plant  (Wimbledon,  Braithwaite).    ft.  var.  Dicksoni  (Strome  ferry, 
Hunt). 

C.  Polytrichum  urnigerum. 

a.  b.  female  and  male  plant  (Bowdon,  Hunt),    ft.  var.  humile  (Aislaby,  Braithwaite). 

D.  Polytrichum  alpinum. 

a.  b.  female  and  male  plant  (Ben  Ledi,  Braithwaite). 

TAB.  VII. 

A.  Polytrichum  sexangulare. 

a.  b.  female  and  male  plant  (Glen  Callater,  Hunt). 

B.  Polytrichum  gracile. 

a.  b.  female  and  male  plant  (Hale  moss,  Wilson). 

C.  Polytrichum  attenuatum. 

a.  b.  female  and  male  plant  (Rigg  mill,  Whitby,  Braithwaite). 


POLYTRICHACE^E.]  61  [Polytrichum. 

TAB.  VIII. 

A.  Polytrichum  piliferum. 

a.  b.  female  and  male  plant  (Wimbledon,  Braithwaite). 

B .  Polytrichum  juniperinum. 

a.  b.  female  and  male  plant  \Ulpha  moss,  Barnes). 

C.  Polytrichum  strictum. 

a.  b.  female  and  male  plant  (Glen  Callater,  Hunt). 

TAB.   IX. 

Polytrichum  commune. 

a.  b.  female  and  male  plant  (Goathland,  Braithwaite).  ft.  Var.  perigoniale.  y.  Var. 
minus.  8.  Var.  fastigiatutn . 

i.  Leaf.  mag.  i  x.  Transv.  section  of  leaf,  i  Ix.  Ditto  of  one  of  vertical  lamellae, 
i  a.  Apex  of  leaf,  i  aa.  Areolation  of  same  seen  from  the  back,  i  am.  Areolation  of 
margin.  2.  Perich.  bract.  4.  Bract,  antheridium  and  paraphyses.  5.  Capsule.  5  p. 
Mouth  and  peristome.  6.  Calyptra.  7.  Trans,  sect,  of  columella.  8.  £  of  Epiphragm, 
internal  face.  9.  Two  teeth,  internal  face  ;  crest  removed  from  one.  10.  Trans,  sect. 
of  stem.  r.  Root  mag.  v.  Vaginula. 


Br.Moss.Fl. 


POLYTRICHACE^E. 


T.V 


Br.Mo8S.Fl. 


POLYTRICHACE^E . 


T.VI. 


POLYTRICHACE^E 


T.  IX. 


R.BrattJnrcute  del.ud.nat  -D.Blfur  hth. 


Uli.lernBros.imp 


FI  SSI  D  E  NT  AC  E.E 


APRIL   IST,  1881. 


FISSIDENS  HEDW. 

*  Acrocarpous. 

1.  F.  exilis  Hedw. 

2.  —  pusillus  Wils. 
8.    —  incurvus  Starke. 

4.  —  viridulus  (Swartz)  Wahlenb. 

5.  — bryoides  (L.)  Hedw. 

6.  —  Orrii  (Lindb.) 

7.  —  osmundoides  (Swartz)  Hedw. 

8.  —  rufulus  Br.  Schimp. 

9.  —  serrulatus  Brid. 
*  Cladocarpous. 

10.  —  decipiens  De  Not. 

11.  —  taxifolius  (L.)  #«*«/. 

12.  —  adiantoides  (L.)  Hedw. 

13.  —  polyphyllus  Wils. 


Div.  2.    ARTHRODONTEI. 

Teeth  of  peristome  transversely  jointed,  composed  externally  of 
two  rows  of  coloured  cells,  with  a  divisural  line  between  ;  sometimes 
wanting. 

t  GAMOPHYLLE^E. 

Leaves  bifarious,  inserted  vertically,  with  a  stipular  appendage 
adnate  to  the  nerve  and  part  of  upper  lamina  and  sheathing  the  stem. 

Fam.  5.     FISSIDENTACE.E. 

Plants  gregarious  or  densely  csespitose,  very  variable  in  size,  simple 
or  branched,  complanate,  frondiform,  acrocarpous  or  cladocarpous. 
Leaves  distichous,  alternate,  inserted  vertically,  each  with  a  median 
nerve,  united  to  which  for  a  greater  or  less  extent  is  a  second  series 
of  small  lobules  or  stipules,  which  with  the  upper  half  of  the  leaf  base 
sheathe  the  stem  in  an  equitant  manner ;  cells  parenchymatous,  usually 
incrassate,  often  strongly  papillose.  Capsule  and  peristome  dicranoid. 
Male  infl.  gemmiform,  axillar,  radical  or  terminal. 

Besides  the  great  genus  Fissidens, — of  which  Conomitrium  and  Ododicems 
are  regarded  as  sections — the  monotypic  Sorapilla  SPRUCE  is  the  only  other 
member,  though  Lindberg  also  adds  to  the  family  his  genus  Mittenia, 
(  =  Mniopsis  MITT,  non  DUMORT.)  The  species  are  distributed  through  all 
the  tropical  and  temperate  regions  of  the  world,  and  inhabit  wet  banks  and 
rocks,  sometimes  trunks  of  trees,  and  a  few  float  in  water. 

FISSIDENS  HEDWIG. 

Capsule  on  a  terminal  or  lateral  seta,  symmetric  or  obliquely  in- 
curved, narrowed  at  base.  Calyptra  cucullate  or  mitriform.  Peristome 
of  16  teeth,  cleft  half-way  or  more  into  two  rough  subulate  legs;  or 
sometimes  truncate  and  irregular,  geniculato — inflexed  when  dry.  Leaves 
scalpelliform,  the  upper  basal  part  conduplicate  and  amplexicaul. 

This  most  natural  and  extensive  genus  was  established  by  Hedwig  in 
his  Fund.  Muse.  P.  II,  p.  91  (1782),  with  the  character  "  Peristome  simple,  of  16 
rather  short  inflexed  teeth  ;  male  fl.  gemmiform,  in  the  axils  of  leaves"  and  he  refers 
to  it  as  species,  Hyp.  bryoides,  taxifolium,  adiantoides  and  stiuroides  L.  figuring  the 
last,  presumably  as  the  type.  For  this  reason,  and  too  rigidly  we  think, 
Lindberg  retains  Fissidens  for  Leucodon,  and  transfers  all  the  rest  to  Schisto- 
phyllum.  By  this  latter  name  we  are  at  once  reminded  of  the  very  anomalous 
structure  of  the  leaves,  and  of  the  different  theories  which  have  been  ad- 


FISSIDENTACEJE.]  66  [Fissidens. 

vanced  to  account  for  it.  One  of  these  was  that  the  leaf  to  a  certain  extent 
was  split  vertically  to  embrace  the  stem ;  but  this  is  not  tenable,  as  each 
half  of  the  split  portion  is  of  equal  thickness  to  the  rest  of  the  leaf.  Another 
view  which  has  met  with  general  acceptance  is  that  the  double  portion  alone 
is  the  true  leaf  (lamina  vera  C.  MUELL.),  and  all  the  rest  is  an  outgrowth  from 
it,  the  portion  behind  the  lam.  vera  being  termed  lam.  dorsalis,  and  the  two 
wings  beyond  these  up  to  the  apex  constituting  the  lam.  apicalis.  However 
plausible  this  view  may  appear,  it  does  not  satisfy  us,  for  there  are  species  in 
which  the  duplicate  part  is  nearly  or  altogether  wanting,  e.g.  F.  dealbatus 
from  New  Zealand.  The  most  rational  explanation  seems  to  be  this,  that 
the  additional  lobule  is  of  the  nature  of  a  stipule,  arising  on  the  opposite  side 
of  the  stem,  which  has  become  adnate  to  the  nerve  by  the  whole  lower 
margin,  the  upper  margin  being  free  and  parallel  to  the  corresponding 
margin  of  the  leaf.  Lindberg's  names  for  the  several  parts  are  clear  and 
simple,  and  are  vaginant  lamina  for  the  conduplicate  portion,  superior  lamina  for 
the  continuation  of  this  to  the  apex,  and  inferior  lamina  for  the  whole  length 
of  the  part  below  the  nerve. 

The  small  species  of  the  incurvus  group  present  great  variation  in  the 
position  of  the  male  infl.,  and  I  am  satisfied  that  no  reliable  specific  character 
can  be  founded  on  it ;  a  point  noticed  by  Lindberg  to  some  extent  confirms 
this,  viz.,  that  in  some  autoicous  species,  the  male  is  connected  with  the 
base  of  the  female  by  rhizomatous  radicles  which  in  course  of  time  dis- 
appear, while  the  male  continues  to  grow  on  as  an  independent  plant,  and 
the  species  thus  becomes  dioicous.  This  elegant  genus  numbers  320  species, 
and  besides  the  British,  five  others  are  European. 


CLAVIS  TO  THE  SPECIES. 

Fruit  terminal. 

Leaves  not  bordered. 

Minute,  autoicous,  lid  conic.  exilis. 

Robust,  dioicous,  lid  rostrate.  osmundoides. 

Leaves  bordered. 
Border  narrow,  thickened. 
Nerve  reaching  apex  and  then  confluent  with  the  border. 

<?    axillar,  leaf  with  a  short  point.  bryoidts. 

$    radical,  leaf  with  a  long  acute  point.  Orrii. 

Nerve  lost  at  apex. 
Small  species  ;  leaves  acute. 

Dioicous,  capsule  inclined,  leaves  very  narrow,  acute.  f>usillns. 

Autoicous,  capsule  incurved,  cernuous.  incurvus. 

Autoicous,  capsule  equal  orslightly  asymmetric,  erect, or  inclined,     viridulus. 
Robust  species  ;  leaves  rather  obtuse.  rufulus. 

Border  not  thickened,  of  4  rows  of  cells. 

Leaves  eroso-serrate  at  apex.  serrulatus. 

Fruit  lateral. 
Autoicous. 

<?   radical,  nerve  excurrent.  taxifolius. 

$   axillar,  nerve  lost  below  apex.  adiantoidcs. 

Dioicous. 

Leaves  short,  with  a  pale  border,  serrulate  at  apex.  decipicns. 

Leaves  very  long,  not  bordered,  nearly  entire  at  apex.  polyfkyllus. 


FISSIDENTACE^.J  67  [Fissidetts. 

i.    FISSIDENS  EXILIS  Hedw. 

Autoicous ;  very  small ;  leaves  3—4  pairs,  lanceolate-oblong,  not 
bordered,  serrulate  at  margin ;  capsule  erect,  elliptic,  with  a  narrow 
annulus,  lid  conico-rostellate.  (T.  X,  A.) 

Sw.—Hypnum  minutum  L.  MSS.  in  herb. 

Bryum  viridulum  DICKS.  Cr.  fasc.  I,  3,  t.  i,  f.  5  (1785). 

Fissidens  exilis  HEDW.  Sp.  muse.  152,  t.  38,  f.  7—9,  excl.  syn.  L.  (1801).  SCHULTZ  FI. 
Starg  2Qi  (1806).  BRID.  p.p.  Sp.  muse,  ii,  163  (1812) ;  Mant.  187  (1819) ;  Bry.  umv. 
ii,  638  (1827).  SCHWAEGR.  Suppl.  I,  P.  II,  4  (1816)  p.p.  WILS.  Bry.  Brit,  302,  t.  53 
(1855).  SCHIMP.  Syn.  muse.  103  (1860),  et  2  ed.  in  (1876).  BERK.  Handb.  Br.  m.  160 
(1863).  HOBK.  Syn.  Br.  m.  135  (1873).  HUSN.  Mouss.  nord-ouest  61  (1873). 

Dicranum  viridulum  SM.  Eng.  Bot.  t.  1368  (non  descr.  nee  Swartz). 

Dicr.  bryoides  ft.  minus  TURN.  muse.  hib.  53  (1804). 

Hyp.  trifoliatum  DON  MSS.  in  herb.  Turn. 

Fiss.  bryoides  var.  exilis  ROHL.  Deutsch.  Fl.  iii.  76  (1813). 

Skitophyllum  exile  LA  PVL.  in  DESV.  Journ.  Bot.  1813,  34,  t.  38,  f.  i. 

Fiss.  Bloxami  WILS.  in  Lond.  Journ.  Bot.  1845,  p.  195,  t.  9.  C.  MUELL.  Syn.  muse,  i,  66 
(1849).  BR.  SCHIMP.  Bry.  Eur.  i,  Mon.  Suppl.  i,  n.  8  (1850).  MILDE  Bry.  Siles. 
80  (1869). 

Autoicous ;  minute,  deep  green,  closely  gregarious.  Stem  i  line 
long,  inclined;  leaves  3 — 4-jugous,  lower  minute,  upper  obliquely 
lanceolate-oblong,  acute,  nerved  to  apex,  not  bordered,  the  margin 
crenulate  or  serrulate,  vag.  lam.  J  length  of  leaf,  inf.  lam.  linear-lanceo- 
late, ending  at  middle  of  vag.  lam.,  areolation  rather  lax.  Capsule 
erect,  on  a  red  seta  2  lines  long,  elliptic,  with  a  short  neck,  brown  with 
a  red  mouth ;  calyptra  conic,  cucullate,  lid  red,  long  as  capsule,  conico- 
rostellate  ;  annulus  pale,  of  two  rows  of  cells,  not  unrolling ;  peristome 
red,  geniculate,  spores  olive-brown. 

Male  infl.  very  minute,  gemmiform,  radical,  or  attached  to  the 
root  tomentum,  bracts  ovate,  acute,  antheridia  very  small,  without 
paraphyses. 

HAB. — Shady  banks  by  ditches  and  in  woods.  Fr.  i — 2. 

Boxhill  and  Enfield  Chase  (Dickson).  Burnside  and  near  R.  Sherbet,  Forfar  (Don,  1802) ! 
Budd's  Clough,  Cheshire  and  Warrington  (Wilson,  1834).  Orton  and  Gopsal  Woods, 
Twycross  (Bloxam,  1844) !  !  Hurstpierpoint  (Mitten,  1847)  •  Kirkham,  Yorks.  (Spruce). 
Near  Keston  Common,  Kent  (Braithwaitc,  1865)  !  !  Bowdon,  Cotteral  wood,  Mottram 
and  Ashley,  Cheshire  (Hunt)  !  !  Todmorden  (Newell,  1863)  !  !  Prestwich  (Hunt, 
1869)  !  Bagley  wood,  Oxford  (Boswell,  1861)  !  Sellack,  Hereford  (Rev.  A.  Ley). 
Holwell,  Dorset  (Rev.  H.  Wood)  !  !  Kelvedon  Hall  woods,  Essex  (Varenne,  1880)  !  ! 
Luscombe  wood,  Teignmouth  (Miss  Jelly).  Near  Bearley  and  Knowle,  Warwick 
(Bagnall)  \  !  Levens,  Westmoreland  (Barnes)  \ 

Readily  known  by  its  crenulate  non-margined  leaves,  and  probably  more 
common  than  supposed,  its  small  size  and  early  appearance  causing  it  to  be 
overlooked.  It  was  constantly  confounded  with  F.  viridulus  by  the  older 
bryologists. 


FISSIDENTACE^E.]  68  [Fissidens. 

2.    FISSIDENS  PUSILLTJS  Wils. 

Dioicous;  very  small;  leaves  3 — 5  pairs,  narrowly  lanceolate, 
acuminate,  entire  with  a  very  narrow  border,  nerved  to  apex  ;  capsule 
oval-cylindric,  erect  or  inclined,  lid  conic,  obliquely  rostellate.  (T.  X,  B.) 

SYN.— Fissidens  pusillus  Wils.  MSS.     MILDE  Bry.  Siles.  82   (1869).     SCHIMP.  Syn.  2  ed.   113 

(1876).     HOBK.  Syn.  Br.  m.  136  (1873). 
F.  viridulus  var.  ft.  pusillus  WILS.  Bry.  Brit.  303  (1855). 
F.  incurvus  var.  pusillus  SCHIMP.  Syn.  104  (1860).     HUSN.  Mouss.  nord-ouest  62  (1873). 

Heteroicous  (dioicous  and  rarely  autoicous)  ;  very  small,  simple  or 
branched  at  base.  Stem  short,  inclined ;  leaves  pale  green,  3 — 4-jugous, 
upper  pair  long,  linear-ensiform,  the  rest  shorter  oblongo -lanceolate, 
the  apex  acuminate,  margin  quite  entire,  with  a  very  narrow  border 
vanishing  below  the  apiculus,  nerve  lost  at  the  point ;  vag.  lam.  not 
reaching  middle  of  leaf,  inf.  lam.  semi-lanceolate,  rapidly  narrowing  at 
base  and  lost  before  reaching  the  stem  ;  cells  oval  or  rounded.  Capsule 
on  a  pale  seta,  leptodermous,  very  small,  erect  or  inclined,  ovali-cylindric, 
strongly  contracted  below  the  mouth  when  dry;  lid  conic,  somewhat 
obliquely  rostellate ;  peristome  deep  red,  arising  below  the  orifice,  teeth 
deeply  cleft,  the  legs  subulate,  filiform,  rough.  Male  plant  minute, 
simple  or  with  i — 2  branches,  the  bracts  sheathing,  with  a  short  lamina ; 
very  rarely  a  male  ramulus  arises  at  base  of  fertile  stem. 
HAB. — Wet  sandstone  rocks.  Fr.  8 — n. 

Hill  cliff  dingle  and  Winwick  stone  delph,  Warrington  (Wilson  1844)  !!  Todmorden 
(Nowcll  1852).  Mowthorpe  dale  and  about  Castle  Howard  (Spruce)  !  !  Pope's  walk, 
Bath  (Mrs.  Hopkins).  Albourne  (Mitten).  Near  Heptonstall  and  Pontefract  (Dr. 
Wood)  1  Ashley  Mill,  Bowdon  and  Clitheroe  (Hunt)  !  !  Gordale,  Malham  (Hunt 
1867)  !  Lover's  Leap,  Buxton  (Hunt  1860)  !  !  Dailly  (Hunt  1865).  Seckley  (Dr. 
Frazcr  1868)  !  Levens  Park  (Barnes  1871)  !  Trungle  moor,  Penzance  (Curnow  1860). 
Ecclesbourne  (Holmes  1876)  !  ! 

Next  to  F.  exilis  the  smallest  of  our  species,  and  forming  delicate  green 
patches  on  the  surface  of  the  sandstone,  to  which  it  clings  closely  by  the 
radicular  tomentum.  For  some  excellent  remarks  on  this  species  see  Dr. 
Spruce's  paper  in  Journ.  Bot.  1880,  p.  360. 

Var.  /?.  Lylei  Wils. 

Leaves  broader,  without  any  border. 

SYN.— Fiss.  Lylei  WILS.  MSS.    F.  viridulus  var.  £.  Lylei  WILS.  Bry.  Brit.  304. 

HAB.— Dam  head  at  Airth   (Lyle  1849)  !     Ashley  Mills  and  Marple,  Cheshire  (Hunt   1868)  !  ! 

Allesley,  Warwick   (Bagnall) !  !     Gilbrook   (Marratt).     King's  Caple,   Hereford  (Rev. 

A.  Ley). 

Var.  y.  madidus  Spruce. 

Leaves  5-jugous,  longer  and  narrower.  Capsule  subcylindric,  the 
lid  obliquely  rostrate,  sometimes  as  long  as  capsule.  Infloresc.  most 
frequently  autoicous,  the  male  on  a  basal  branch  ;  sometimes  dioicous. 
(SPRUCE  in  Journ.  Bot.  1880,  p.  361). 


FISSIDENTACE^;.]  69  [Fissidcns. 

HAB.— On  dripping  stones  near  the  Obelisk  bridge  in  Castle-Howard  Park  (Spruce  1844)  !  ! 

Dr.  Spruce  having  kindly  favoured  me  with  specimens  of  this  plant,  I  can 
only  confirm  the  accuracy  of  his  description  both  of  the  type  and  variety ; 
like  him  I  have  also  failed  in  finding  any  plants  with  the  male  infl.  situated 
as  described  by  Schimper. 

3.    FISSIDENS  INCUEVUS  StarTte. 

Autoicous  ;  leaves  oblongo-lanceolate,  narrowly  bordered,  apiculate ; 
capsule  cernuous,  irregular,  incurved,  lid  conico-rostellate.  (T.  X,  C.) 

Sw.—Fissidens  incurvus  STARKE  MSS.     ROHL.  Deutsch.  Fl.  iii,  76  (1813).     SCHWAEGR.  Suppl. 

I,  P.  II,  p.  5,  t.  49  (1816).     FUNCK  Moostasch.  32,  t.  22,  n.  2  (1821).     Br.  SCHIMP.  Br. 

Eur.  i,  Mon.  6,  t.  i,  p.p.  (1843) ;  Syn.  muse.  104  (1860)  ;  et  2  ed.  112  (1876).     RABENH. 

Deutsch.  Kr.  Fl.  ii,  P.  Ill,  304  (1848).     BERK.  Handb.  Br.  m.  160  (1863).     MILDE  Bry. 

Siles.  81  (1869).     DE  NOT.  Epil.  Briol.  Ital.  485  (1869).      HUSN.  Mouss.  nord-ouest  61 

(1873).     HOBK.  Syn.  Br.  m.  136  (1873). 
Dicranum  incurvum  WEB.  MOHR  Bot.  Tasch.  162  and  465  (1807).     SCHKUHR  Deutsch.  Kr. 

Gew.  P.  II,  82,  t.  37  (1810). 

Dicr.  viridulum  SM.  Fl.  Brit,  iii,  1230  (1804),  Eng.  Bot.  t  1368,  quoad  descr. 
Dicr.  bryoides  var.  ft.  HOOK.  TAY.  Muse.  Br.  49  (1818). 
Fiss.  bryoides  var.  y.  HUEB.  Muse.  germ.  219  (1833). 
Fiss.  tamarindifolius  BRID  Bry.  un.  684,  p.p.  (1827). 
Fiss.  viridulus  var.  e.  incurvus  WILS.  Bry.  Brit.  303,  t.  53  e.  (1855). 
Fiss.  sardous  DE  NOT.  Epil.  Briol.  Ital.  486  (1869). 

Autoicous;  gregarious  or  somewhat  csespitose;  stem  very  short, 
slender,  ascending.  Leaves  4 — 6-jugous,  firm,  flat  or  decurved,  oval- 
oblong  and  lineal-lanceolate,  apiculate,  nerved  to  apex,  with  a  very 
narrow  border  becoming  wider  toward  base  ;  vag.  lam.  lanceolate,  half 
length  of  leaf,  infer,  lam.  lanceolate,  very  narrow  at  base  ;  cells  small, 
rounded.  Seta  long,  red,  capsule  pachydermous,  cernuous  or  horizontal, 
pale  brown,  arcuato-incurved,  with  a  distinct  neck,  oval  or  subcylindric  ; 
lid  conic,  rostellate,  red ;  calyptra  pale,  rostrate ;  peristome  not  inserted 
below  the  mouth.  Male  at  the  base  of  female,  gemmiform,  on  a  very 
short  branch  ;  bracts  broadly  obovate  with  a  small  vertical  lamina. 
HAB. — Clay  banks  and  pastures.  Fr.  2 — 4. 

Near  York  (Spruce)  !  Orford  Park,  Warrington  (Wilson).  Hurstpierpoint  (Mitten). 
Hareleywood,  Todmorden  (Nowcll  1853)  !  !  Castle  mills,  Ashley  mill  and  Butt's  Clough 
(Hunt) !  !  Buckland,  Faringdon  (Mrs.  Milne) !  !  Iffley  and  Watereaton,  Oxon  (Boswell 
1861)  !  Marple  (Scholeficld  1868)  !  Durdham  Downs  (Miss  Atwood  1854) !  Merton 
Heath,  Dorset  (Rev.  H.  Wood).  Solihull  (Bagnall).  Truro  (Curnow). 

In  the  typical  form  figured  this  species  appears  to  be  distinct  enough, 
but  other  states  are  met  with  in  which  the  capsule  is  but  slightly  curved, 
and  thus  differing  but  little  from  that  of  the  next  species,  while  the  leaves 
of  both  are  nearly  alike.  After  the  fall  of  the  lid,  the  capsule  loses  much  of 
its  curvature  and  becomes  horizontal. 

Var.  (3.  tamarindifolius  Don. 

Stems  taller,  fasciculate  from  the  base  ;  leaves  multijugous,  more 
distant,  shorter,  broader,  crisped  when  dry.  Fertile  branch  springing 


FISSIDENTACE^.]  70  [Fissidens. 

from  the  lower  part  of  a  barren  shoot,  capsule  shorter,  reddish -brown, 
peristome  paler.     Male  infl.  gemmiform,  near  the  base  of  stem. 

SYN. — Hypnum  tamarindif.  DON.  in  lit.  sec.  Smith. 

Dicranum  tamarindif.  SM.  Fl.  Brit.  1231.  TURN.  muse.  Hib.  55. 

Skitophyllum  tamarindif.  LA  PYL.  in  DESV.  Journ.  Bot.  1813,  t.  37. 

Fissidens  tamarindif.  BRID.  Sp.  muse.  I,  165;  Mant.  187,  et  Bry.  un.  684,  p.p.WiLS.  Bry. 

Brit.  308,  t.  53.    BERK.  Handb.  Br.  m.  157.     HOBK.  Syn.  Br.  m.  138. 
Fiss.  trichomanoides  WILS.  MSS. 

HAB. — On  clay  soil,  banks  and  fallow  fields.  Fr.  2 — 3. 

Near  Forfar  (Don).  Near  Over,  Cheshire,  and  Warrington  (Wilson)  \  Stansfield, 
Todmorden  and  Heptonstall  (Nowell  1850)  !  !  Hurstpierpoint  (Mitten).  Oakmere, 
Ashley  and  Clifton  Junction  (Hunt  1863)  !  Roskelly  Cliff,  Penzance  (Curnow  1865) !  ! 

This  variety  is  distinguished  by  the  great  abundance  of  sterile  surculi, 
but  otherwise  it  presents  no  structural  differences  to  separate  it  from  F. 


4.    FISSIDENS  VIEIDULUS  (Swartz)  WaliUnb. 

Autoicous ;  very  small,  simple  ;  leaves  lanceolate,  bordered,  entire, 
acute,  nerved  to  apex ;  capsule  erect  or  a  little  inclined,  symmetric, 
oval-oblong,  lid  conic,  acuminate.  (T.  X,  D.) 

Srs.—Bryum  viridulum  L.  in  Herb.  p.p. 

Dicranum  viridulum  SWARTZ  Muse.  Suec.  84,  t.  2,  f.  3  (1799).     WEB.  MOHR  Bot.  Tasch. 

161  (1807).    SCHKUHR  Deutsch.  Kr.  Gew.  P.  II,  81,  t.  36  (1810).    VOIT  Muse.  Herbip. 

37  (1812). 
Fissidens  virid.  WAHLENB.  Fl.  lapp.  334  (1812),  Fl.  carp.  342  (1814).     WILS.  Bry.  Brit. 

3°3»  *•  53  (I855).     BERK.  Handb.  Br.  m.  159  (1863).     HOBK.  Syn.  Br.  m.  136  (1873). 
Fiss.  exilis  FUNCK  Moostasch.  t.  22,  n.  i  (1821),  non  HEDW. 
Fiss.  incurvus  p.p.  BR.  SCHIMP.  Bry.  Eur.  5,  Mon.  6,  t.  i  (1843),  Syn.  muse.  104  (1860)  et 

2  ed.  112  (1876). 
Fiss.  bryoides  p.p.  BRIDEL  et  pi.  auct. 

Autoicous ;  stems  short,  slender,  inclined.  Leaves  5 — 8-jugous,  pale 
green,  crisped  when  dry,  lanceolate,  acute,  nerved  to  apex,  border 
vanishing  usually  at  point,  vag.  lam.  about  half  length  of  leaf,  inf.  lam. 
ceasing  before  reaching  base.  Capsule  leptodermous,  symmetric,  erect 
or  inclined,  sometimes  more  or  less  oblique,  oval,  olivaceous-brown, 
seta  pale  ;  lid  conico-rostellate,  red  ;  peristome  arising  below  mouth  of 
capsule.  Male  infl.  terminal  on  a  branch  at  base  of  fertile  stem,  some- 
times becoming  dioicous. 

HAB. — On    clay    banks,    sandstone    rocks  and    stones;     not    uncommon. 
Fr.  ii— 2. 

St.  Vincent's  rocks  (Wilson  1860).  Clitheroe  and  Pontefract  (Dr.  Wood)  \  Plymouth 
(Holmes)  !  !  Knowle  (Bagnall).  Melrose  (Jordan).  Howth  (Orr).  Ecclesbourne 
(Holmes)  \  \  Barmouth  (Rogers)  \  !  Beckhole,  Whitby  (Braithwaite  1858)  !  ! 

Swartz's  specimens  in  Smith's  herb,  have  the  capsule  perfectly  sym- 
metric and  erect.  By  all  continental  Botanists  of  our  own  time  this  is  united  to 


FISSIDENTACE.E.]  71  [Fissidens. 

F.  incuvvus,  and  yet  there  is  a  great  apparent  difference  in  the  capsules  which 
is  our  chief  reason  for  keeping  them  separate.  Lindberg  regards  it  as  a 
subspecies  of  F.  incuvvus. 

Var.  (3.  fontanus  (S chimp.) 

Taller  and  more  robust ;  stem  | — 2  in.  long,  flexuose,  ascending  or 
submersed,  simple  or  dichotomous  ;  leaves  multijugous,  rather  distant, 
deep  green,  large  and  succulent,  nerve  vanishing  below  apex  as  also  does 
the  border,  which  is  thicker  and  obsoletely  denticulate  toward  point. 
Seta  stout,  reddish  yellow,  capsule  erect  or  suboblique,  obovate,  pale 
brown,  lid  conico-rostellate. 

SYN. — Fiss.  incurvus  var.  /?.  fontanus  BR.  SCHIMP.  Br.  Eur.  i,  Mon.  7,  1. 1  ft.  et  var.  crassipes 

SCHIMP.  Synops.  104.     HUSN.  Mouss.  nord-ouest  62. 
Fiss.  fontanus  SCHIMP  MSS. 
Fiss.  crassipes  WILS.  MSS.      BR.  SCHIMP.  Br.  Eur.   Mon.  Suppl.  i,  n.  9.     MILDE  Bry. 

Siles.  82.     DE  NOT.  Epil.  Briol.  Ital.  484.     HOBK.  Syn.  Br.  m.  136.     SCHIMP.   Synops. 

2  ed.  113. 
Fiss.  viridulus  var.  y.  major  WILS.  Bry.  Brit.  303,  t.  53,  y. 

HAB. — Attached  to  woodwork  and  stones  in  sluices.  Fr.  9 — 10. 

Ireland  (Turner  1809).  Hulme  (Wilson  1844)  !  !  York  and  Castle  Howard  (Spruce)  ! 
Ashley  sluice,  Bowden  (Hunt  1863)  !  !  Sandford  Lasher,  Oxford  (Boswcll  1864)  !  •' 
Bath  (Mrs.  Hopkins  1861)  !  Wrexham  (Wilson  1863)  !  !  Croft,  Thirsk,  and  Topcliffe 
(Baker).  Eaton  Bishop,  Hereford  (Rev.  A.  Ley).  Tothill  (Holmes). 

Like  all  aquatic  mosses  the  leaves  are  of  thicker  substance,  and  dark 
green  colour.  The  male  inflorescence  appears  to  be  very  scarce. 

5.     FISSIDENS  BRYOIDES  (L.)  Hedw. 

Autoicous,  with  the  male  infl.  axillary ;  leaves  oblongo-ligulate, 
acute,  with  a  thickish  hyaline  border,  nerve  reaching  point  or  excurrent, 
capsule  ovate,  erect  or  inclined,  lid  conico-rostellate.  (T.  X,  E.) 

SYN. — Muscus  polytrichoides  cxiguus,  capitulis  in  extremis  cauliculis  scufoliis,  subrotundis  erectis 

RAY  Syn.  St.  Brit.  2  ed.  35,  n.  4  (1696). 

Hypnum  repens  fiUcifolium,  non  ramosum,  pediculis  brevioribus  versus  foliorum  summit, 
cgrcdicntibus  DILL,  in  RAY  Syn.  3  ed.  88,  n.  42  (1724). 

Hypnum  taxiforme  exiguum  versus  summitatem  capsuliferum  DILL.  Hist.  muse.  262,  t.  34, 

f.  i  (1741)  ;  et  Herb. 
Hyp.  bryoides  L.  Sp.  pi.  ii,  1123  (1753)  ;  Fl.  suec.  1012 ;  Syst.  Veg.  950.    HUDS.  Fl.  angl.  418 

(1762).     WEISS  Cr.  Gott.  217  (1770) ;   Fl.  Dan.  t.  473.    NECK.  meth.  muse.   152  (1771). 

WITH.  Bot.  arr.  Br.  veg.  680  (1776).     LIGHTF.  Fl.  Scot,  ii,  739  (1777).     RELH.  Fl.  cant. 

408  (1785).     WEB.  Spic.  Fl.  Gott.  46  (1778).     VILL.  PI.  Dauph.  iii,  894  (1786).     HOFFM. 

Deutsch.  Fl.  ii,  55  (1796).    ABBOT  Fl.  bedf.  244  (1798).     HULL  Br.  Fl.  P.  2,  267  (1799). 

Eng.  Bot.  t.  625  (1799),  p.p. 
Fiss.  bryoides  HEDW.   Fund.  muse.  P.  2,  91  (1782)  ;    Muse.  fr.  iii,  67,  t.  29  (1792) ;  Sp. 

muse.  135  (1801).     ROTH  Fl.  germ,  i,  459  (1788).     BRID.  muse.  rec.  ii,  P.  2,  139  (1801) ; 

Sp.  muse.  I,  164  (1806)  ;    Mant.  188  (1819)  ;   Bry.  univ.  ii,  686  (1827).     ROHL.  Moosg. 

Deutsch.  288  (1800).     P.  BEAUV.  Prodr.  57  (1805).     SCHULTZ  Fl.  Starg.  297  (1806). 

SCHWAEGR.  Suppl.  i,  P.  II,  7  (1816).   FUNCK  moostasch.  33,  t.  22,  f.  3  (1821).     HARTM. 

Skand.  Fl.    HUEBEN.  muse.  germ.  219  (1833).     BR.  SCHIMP.  Bry.   Eur.  i,  Mon.  8,  t.  2 

(1843)  ;  Syn.  muse.  103  (1860),  et  2  ed.  in  (1876).     RABENH.  Deutsch.  Kr.  Fl.  ii,  P.  3, 

305  (1848).     C.  MUELL.  Syn.  muse,  i,  58   (1849).     WILS.  Bry.   Brit.  304,  t.   16  (1855). 

BERK.  Handb.  Br.  m.  159  (1863).     MILDE   Bry.  siles.  81  (1869).     DE  NOT.  Epil.  Bri. 

ital.  483  (1869).     HOBK.  Syn.  Br.  m.  136  (1873).     HUSN.  Mouss.  nord-ouest  61  (1873). 


FISSIDENTACE^.]  72  \Fissidens. 

Fuscina  bryoides  SCHRANK  Balers.  Fl.  ii,  451  (1789)  ;  Prim.  Fl.  Salisb.  n.  826  (1792). 
Dicranum  bryoides  SIBTH.  Fl.  oxon.  179  (1794)-     R<>TH   Fl.  germ,  iii,  181   (1795).     SMITH 

Fl.  Brit,  iii,  1232  (1804).     TURN.  Muse.  hib.  56  (1804).      SCHKUHR   Deutsch.  Kr.  Gew. 

P.  II,  82,  t.  37  (1810).     HOOK.  TAYL.  Muse.  Brit.  51,  t.  16,  p.p.  (1818).     GRAY  Nat.  arr.. 

Br.  Pl.  i,  733  (1821).     MACK.  Fl.  Hib.  P.  2,  21  (1836). 
Skitophyllum  bryoides  LA  PYL.  in  DESV.  Journ.  Bot.  1813,  40,  t.  35,  f.  4. 
SMstophyllum  bry.  BRID.  MSS.  LINDBERG. 
Fiss.  inconstans  SCHIMP.  Syn.  muse.  2  ed.  114  (1876). 

Autoicous;  deep  green,  densely  gregarious  or  somewhat  csespitose. 
Stems  £ — i  in.  ascending  from  a  declinate  base  ;  leaves  3-plurijugous, 
patulous,  oblongo-ligulate,  mucronulate,  with  a  thickish  hyaline  border, 
confluent  at  apex  with  the  excurrent  nerve,  or  ending  below  a  very 
minutely  serrate  apiculus ;  vag.  lam.  about  half  length  of  leaf,  inf.  lam. 
narrowed  downward  to  the  base  and  decurrent ;  areolation  angular- 
rotundate.  Capsule  on  a  purple  seta,  erect  or  slightly  inclined,  ovate 
or  oblong,  small,  brown ;  calyptra  cucullate,  lid  conic-attenuate,  short 
red ;  teeth  of  peristome  deep  red,  cleft  half  way,  the  legs  subulate,  very 
scabrous;  spores  smooth.  Male  infl.  axillar,  numerous,  bracts  4 — 5, 
vertical  lamina  minute,  pointed,  antheridia  few,  very  small ;  sometimes 
also  it  is  on  a  radical  surculus. 
HAB. — Damp  shady  banks  in  woods  and  edges  of  streams,  common. 

Fr.  10—  i. 

Few  persons  have  seen  this  little  moss  without  admiring  it,  and  occa- 
sionally it  is  found  in  shady  crevices  where  spray  falls,  tinged  with  a  steel 
blue  gloss  which  renders  it  still  more  beautiful.  It  is  usually  credited  with 
being  the  plant  which  attracted  Mungo  Park's  attention  when  in  great 
distress  during  his  African  wanderings,  but  unfortunately  this  is  not  correct, 
the  species  he  brought  back  is  a  smaller  plant  with  a  short  seta,  and  non- 
margined  leaves  which  Mr.  Mitten  has  named  Fiss.  Parkii. 

I  regard  F.  inconstans  Schimp.  (Sunningwell,  Oxford,  Boswell  1861)  as 
rather  of  the  nature  of  a  sport  than  a  permanent  variety,  as  in  structure  it 
agrees  in  every  respect  with  F.  bryoides.  The  fruit  is  both  terminal  and 
from  the  middle  on  the  same  stem,  and  others  have  it  radical  like  F.  taxifolins, 
while  the  male  infl.  is  axillar  like  the  type,  radical  as  in  F.  incurvus,  and 
sometimes  terminal  on  a  separate  plant ;  the  same  form  has  been  found  by 
Mr.  Bagnall  at  Binton  Bridges,  Warwick,  and  it  is  very  probable  that  F. 
gymnandrus  BUSE  forms  another  link  in  the  chain.  F.  rivularis  SPRUCE  is  quite 
distinct,  having  smaller  areolation  and  a  very  thick  border. 

Var.  ft.  caespitans  Schimp. 

Plants  i — i£in.  high,  sparingly  branched  by  innovation,  soft,  bright 
green,  in  wide  crowded  patches  interwoven  with  rufous  purple  radicles. 
Border  of  leaves  narrow,  vanishing  below  the   very  minutely  serrate 
apiculus.     Capsules  pale,  thin,  ovato-rotundate,  inclined. 
SYN. — SCHIMP.  Syn.  muse.  2  ed.  m. 

HAB.— Wet  rocks  under  spray  of  a  waterfall,  Newlyn  cliff,  Penzance  (Curnow  1868)  !  !     In  a 
stream  at  Kymal  bridge,  St.  Creed  (Ralfs  1879)  !  ! 


FISSIDENTACE^E.]  73  [Fissidens. 

6.     FISSIDENS  ORRII  (Lindb.) 

Autoicous ;  very  small.  Leaves  narrow,  linear,  very  acute,  with  a 
thickened  border  and  excurrent  nerve.  Capsule  minute,  obovate,  cer- 
nuous,  lid  conico-rostrate.  (T.  X,  F.) 

SvH.—Schistophyllum  Orrli  LINDB.  in  Revue  bryolog  1880,  p.  97. 

Autoicous  (rhizautoicous) ;  very  small,  pale  or  yellowish,  csespitose, 
innovating  from  brown  rhizomatous  tomentum.  Leaves  of  sterile  plant 
multijugous,  rigid,  straight,  patent,  linear-lanceolate,  very  acute,  with  a 
thickened  yellow  border  confluent  in  the  apex  with  the  excurrent  nerve ; 
vag.  lam.  f — |  length  of  leaf,  infer,  lam.  gradually  narrowed  to  base  and 
slightly  decurrent ;  cells  incrassate,  oval  and  angular,  smooth,  pellucid. 
Leaves  of  fertile  plant  about  8-jugous,  smaller.  Seta  slender,  straight, 
yellow ;  capsule  minute,  pale,  pachydermous,  obovate,  inclined ;  peris- 
tome  brown-purple,  legs  of  teeth  very  slender  ;  lid  large,  pale, 
conico-rostrate,  calyptra  small,  conical.  Male  infl.  very  minute,  gem- 
miform,  cohering  to  base  of  female  stem,  bracts  sheathing,  emarginate 
at  apex,  with  a  thick  excurrent  nerve,  antheridia  3 — 6,  without 
paraphyses. 

HAB. — On  stones  in  the  Tolka  river  and  at  an  old  quarry  on  its  north  bank  nearFinglas  bridge, 
Glasnevin  Botanic  Garden,  Dublin  (D.  Orr  1854). 

The  close  vicinity  of  a  Botanic  garden  naturally  casts  some  shade  of 
doubt  on  the  claims  of  this  pretty  little  moss  to  be  considered  indigenous, 
as  spores  may  have  been  introduced  with  the  soil  attached  to  foreign  plants. 
Mr.  Orr  gathered  and  distributed  it  as  F.  viridulus,  and  the  drawing  is  made 
from  the  original  plant  kindly  lent  by  Prof.  Lindberg. 

7.     FISSIDENS   OSMUNDOIDES  (Swartz)  Hedw. 

Dioicous ;  stems  dichotomous,  leaves  crowded,  scalpelliform,  apicu- 
late,  margin  minutely  crenulate,  not  bordered,  nerve  vanishing ;  capsule 
erect,  oval,  calyptra  mitriform,  lid  rostrate.  (T.  XI,  A.) 

SYN. — Dicranum  osmundoides  SWARTZ  in   Act.    Holm.  1795,  p.  240.    TURN.  Muse.  Hib.  55 

(1804).    SMITH  Fl.  Brit,  iii,  1233  (1804) ;  Eng.  Bot.  t.  1662. 

Dicr.  bryoides  SWARTZ  Muse.  Suec.  86,  t.  2,  f.  4  (1799).  WL:B.  MOHR  Bot.  Tasch.  163 
(1807).  SCHKUHR  Deutsch.  Kr.  Gew.  P.  II,  82,  t.  37  (1810).  Var  {3.  elongatiim  HOOK. 
TAYL.  Muse.  Brit. 

Hypnum  asplcnioidcs  DICKS.  Cr.  fasc.  2,  p.  10,  t.  5,  f.  5  (1790),  excl.  Syn.  Swartzii.  WITH. 
Bot.  arr.  Br.  Veg.  3  ed.  843  (1796).  HULL  Br.  Fl.  P.  2,  268  (1799). 

Fiss.  osmundoides  HEDW.  Sp.  muse.  153,  t.  40,  f.  7 — ii  (1801).  P.  BEAUV.  Prodr.  57 
(1805).  SCHULTZ  Fl.  starg.  292  (1806).  BRID.  Sp.  muse,  i,  168  (1806);  Mant.  muse 
188  (1819) ;  Bry.  univ.  ii,  689  (1827).  SCHWAEGR.  suppl.  I,  P.  II,  7  (1816).  MART.  Fl 
cr.  Erl.  109  (1817).  FUNCK  Moost.  33,  t.  22,  n.  4  (1821).  HUEBEN.  Muse.  germ.  22 
(1833).  HARTM.  Skand.  Fl.  BR.  SCHIMP.  Br.  eur.  i,  Mon.  8,  t.  3  (1843) ;  Syn.  muse 
106  (1860)  ;  2  ed.  n6  (1876).  FIEDL.  Syn.  Laubm.  Meckl.  130  (1844).  RABENH 
Deutsch.  Kr.  Fl.  ii,  P.  3,  305  (1848).  C.  MUELL.  Syn.  muse,  i,  60  (1849).  WILS.  Bry 
Brit.  305,  t.  16  (1855).  BERK.  Handb.  Br.  m.  158  (1863).  MILDE  Bry.  Siles.  82  (1869) 
DE  NOT.  Epil.  Bri.  Ital.  481  (1869).  HOBK.  Syn.  Br.  m.  137  (1873). 


FISSIDENTACE^;.]  74  [Fissidens. 

Skitophy  Hum  osmundoides  LA  PYL.  in  Desv.  Journ.  Bot.  1813,  p.  38,  t.  25,  f.  5. 
Fiss.  bryoides  ROHL.  Deutsch.  Fl.  iii,  77  (1813).     WAHLEN.  Fl.  Carp.  333  (1814). 
Fiss.  dlcarpos  BRID.  Mant.  190;  Bry.  univ.  ii,  698. 
Conomltrium  osmundoides  C.  MUELL.  Syn.  ii,  526  (1851). 

Dioicous ;  in  rather  dense  deep  green  or  yellowish  tufts,  interwoven 
with  rufous  tomentum.  Stem  slender,  erect,  i — 6  in.  high,  repeatedly 
dichotomous ;  leaves  multijugous,  crowded,  increasing  in  size  upward, 
broadly  lingulate  or  scalpelliform,  with  a  short  apiculus,  margin  minutely 
crenulate,  not  bordered ;  nerve  vanishing  below  apex,  vag.  lam.  ovato- 
lanceolate,  about  half  length  of  leaf,  inf.  lam.  linear-lanceolate,  reaching 
base,  but  not  decurrent ;  cells  rather  lax,  rounded  or  oblong.  Seta 
terminal,  erect,  purple ;  capsule  erect  or  inclined,  rather  small,  brown, 
pachydermous,  oval  or  oval-oblong;  lid  long  as  capsule,  conoid,  rostrate, 
straight ;  teeth  cleft  to  middle,  the  legs  unequal,  subulate,  nodulose ; 
calyptra  submitriform,  lobed  at  base.  Male  plant  more  slender,  infl. 
terminal,  inner  bracts  sheathing,  with  a  narrow  sword-shape  lamina. 
HAB. — In  wet  grassy  places  on  heaths.  Fr.  7. 

Pentland  hills  (Maughan  1807).  Aber  (Wilson  1838)  !  !  Longfield  moor,  Todmorden 
(Nowell  1855)  !  !  Trossachs  (Shaw  1861).  Langbrigg  Fell,  Rydal  (Wood  1864)  ! 
Tarbet,  Cantire  (Hunt  1866)  !  !  Dunoon  (Stirton  1866)  !  Woodside  moor,  Levens 
(Stabler  1868)  !  Lydford  and  Exwick,  Devon  (Holmes)  !  !  Teesdale  and  Swaledale, 
Yorks.  (Baker).  Aultnaharra,  Ross  (Howse  1871)  !  Cromagloun  and  Ben  Bulben 
(Moore).  Glengariff  (Hunt)  \  Llanberis  (Holmes)  \  ! 

Distinguishable  at  once  by  its  non-bordered  leaves  with  large  cells. 
The  var.  microcarpus  SCHIMP.  appears  to  be  only  a  dense  form  with  ill- 
developed  fruit,  to  which  Wilson's  specimens  from  Aber  closely  approximate. 

8.    FISSIDENS  RTTFULUS  Br.  Sch. 

Dioicous ;  leaves  crowded,  erecto-patent,  cultriform,  rather  obtuse, 
entire,  with  a  thick  reddish  border ;  capsule  small,  oval,  erect ;  lid  conical, 
obtuse.  (T.  XI,  B.) 

SYN.— Fissidens  rufuhis  SCHIMP.  Br.  Eur.  Mon.  Suppl.  T.  II.  (1851) ;  Syn.  muse.  106  (1860)  ;  et 
2  ed.  120  (1876).     MILDE  Bry.  siles.  84  (1869). 

Fiss.  ventricosus  LESQ.  in  Mem.  Calif.  Acad.  i,  7  (1868).  SULLIV.  Icon.  Muse.  Suppl. 
p.  45,  t.  30  (1874). 

Dioicous  ;  densely  csespitose,  blackish-green.  Stems  erect  £— 1£  in. 
high,  dichotomous,  fastigiate-branched,  with  brown  radicles  among  the 
leaves.  Leaves  crowded,  erecto-patent,  multijugous,  nearly  equal,  cul- 
triform, rather  obtuse,  with  a  thickened  reddish  border  vanishing  just 
below  the  minutely  eroso-denticulate  apex ;  nerve  stout,  reddish,  ending 
with  the  border  at  apex;  vag.  lam.  | — f  length  of  leaf,  somewhat 
inflated,  acute  at  apex,  where  the  margin  is  usually  flexuose,  inferior 
lam.  lanceolate,  narrowed  gradually  downward,  and  vanishing  at  the 
stem;  cells  incrassate,  rounded-hexagonal,  sparingly  chlorophyllose. 


FISSIDENTACE^.]  75  [Fissidens. 

Seta  very  short,  terminal;  perich.  bracts  resembling  the  leaves,  but 
longer ;  capsule  small,  erect,  pachydermous,  narrowly  oval,  olivaceous  ; 
lid  conical,  obtuse ;  teeth  of  peristome  erect,  coarsely  articulated, 
toward  apex  formed  of  spiral  fibrils.  Male  plant  shorter  with  terminal 
inflorescence,  bracts  obovate,  dilated,  with  a  short  sword-shaped  lamina. 

HAB.— In  streams,  attached  to  rocks  and  stones.     River  Lune  in  Rigmaden 
Park,  Westmoreland  (P.  Dreeseri). 

This  interesting  addition  to  our  Flora  has  been  found  at  the  Rhine 
Falls,  and  at  Salzburg,  and  we  have  no  doubt  it  is  also  the  same  as  the 
Californian  F.  ventricosus  of  Lesquereux.  The  capsules  on  our  specimens  are 
old  and  without  operculum,  and  we  have  completed  the  drawings  of  these 
parts  from  Sullivant's  figures.  Our  plants  grow  associated  with  Cinclidotus, 
those  in  the  Rhine  with  Fiss.  grandifrons,  and  the  older  leaves  are  generally 
worn  and  abraded  by  the  current. 

9.    FISSIDENS  SERRTJLATUS  End. 

Dioicous ;  stem  tall,  simple;  leaves  about  20-jugous,  straight, 
Ungulate,  the  margins  serrulate  with  prominent  cells,  apex  acute  serrate. 
Capsule  terminal  inclined,  oval-oblong,  subventricose ;  lid  conic,  long- 
beaked.  (T.  XI,  C.) 

Svn.—Fissidens  serrulatus  BRID.  Sp.  muse,  i,  170  (1806) ;    Mant.  muse.  190  (1819),  et  Bry.univ. 

ii,  704  (1827).     MONT,  in  Ann.  Sc.  nat.  et  in  Hist.  nat.  des  Isles  Can.  par  Webb  &  Berth. 

iii,  22,  t.  2,  f.  i  (1840).     C.  MUELL.  Syn.  muse,  i,  69  (1849).     SCHIMP.  Bry.  Eur.  vi,  Suppl. 

T.  3  (1851) ;  Syn.  107  (1860)  et  2  ed.  117  (1876). 
Schistophyllum  serratum  BRID.  MSS. 
Fiss.  divisus  KUNTH. 

Fiss.  asplcnioides  var.  serrulatus  WILS.  Bry.  brit.  306. 
Fiss.  Langei  DE  NOT.  Epil.  briol.  ital.  479  (1869). 

Dioicous ;  laxly  csespitose,  tall,  simple  or  with  many  stems  from 
base;  stem  simple  or  sparingly  branched  i — 3  in.  high.  Leaves 
crowded,  multijugous,  increasing  in  size  upward,  flat,  glossy,  pale  green, 
coriaceo-membranous,  lingulate,  shortly  acuminate  at  apex,  which  is 
often  irregular  and  bent  to  one  side ;  nerve  thick,  subflexuose,  yellowish, 
vanishing  in  the  eroso-serrate  acute  apex ;  vag.  lam.  about  half  length 
of  leaf,  inf.  lam.  linear,  abruptly  and  narrowly  decurrent  at  base ;  all 
margin  with  a  border  of  four  rows  of  rather  larger  yellowish  cells,  more 
distinct  in  the  older  leaves,  without  chlorophyl,  minutely  crenulate ; 
rest  of  the  areolation  small  rounded  and  angular.  Fruit  terminal  on 
the  stem  or  on  a  lateral  innovation,  rooting  at  the  perichaetium,  and 
finally  deciduous  and  forming  a  distinct  plant ;  capsule  on  a  short  stout 
yellow  flexuose  pedicel,  cernuous,  oval,  fulvous  brown,  pachydermous, 
contracted  below  the  mouth  when  dry ;  lid  large,  conic  with  a  longish 
straight  beak ;  teeth  large,  deep  purple,  cleft  into  two  longly  subulate 


FISSIDENTACE^E.]  76  [Fissidens. 

nodulose  legs.  Male  plants  in  separate  tufts  ;  infl.  gemmaceous,  axillar 
and  terminal,  bracts  broadly  truncate  oval,  with  a  narrow  vertical 
lamina,  serrate  at  apex,  antheridia  numerous,  oblongo-cylindraceous, 
with  very  few  paraphyses. 

HAD. — Wet  rocks  and  moist  shaded  soil.  River  side  at  Castle  Hornoch, 
near  Penzance,  <?  (Curnow,  Nov.  1868) ! !  Mousehole  cave,  Penzance 
(Curnow,  Dec.  1869)  ! ! 

This  beautiful  moss  closely  resembles  F.  polyphyllus,  but  may  be  readily 
distinguished  by  the  apex  of  the  leaf,  which  is  acute  with  the  margin  sharply 
serrate.  We  have  only  the  male  and  barren  plants,  and  it  truly  belongs  to 
the  Canarian  Flora,  the  fruiting  plant  having  been  brought  from  Teneriffe  by 
Bory  de  St.  Vincent.  The  species  is  also  met  with  in  Portugal,  Tuscany, 
and  at  Monte  Pisano,  near  Genoa,  and  at  the  latter  station  a  few  capsules 
have  recently  been  found  by  Mr.  Fitzgerald. 

10.    FISSIDENS  DECIPIENS  De  Not. 

Dioicous ;  fasciculate  at  base ;  leaves  lineal-lanceolate,  nerved  to 
apex,  with  a  pale  border  of  rounded  cells,  margin  crenulate,  serrate 
toward  apex  ;  capsule  suberect,  ovate,  lid  rostrate.  (T.  XI,  D.) 

SYN. — Fissidens  decipiens  DE  NOT.  in  PICCONE  Elenc.  musch.  ligur.  n.  181,  et  Cronac.  briol. 
ital.  in  Comm.  critt.  ii,  98  (1866) ;  Epil.  Briol.  ital.  479  (1869).  MILDE  Bryol.  siles.  84 
(1869).  HOBK.  Syn.  Br.  m.  138  (1873).  SCHIMP.  Synops.  2  ed.  118  (1876).  SULLIV. 
Icon.  muse.  Suppl.  p.  46,  t.  31  (1874). 

Fiss.  adiantoides  et  F.  taxifolius  p.p.  plur.  auct. 

jFz'ss.  adiantoides  ft.  marginatus  (LA  PYL.)  BRID.  Bry.  univ.  ii,  704  (1827). 

Fiss.  rupestris  WILS.  MSS. 

Dioicous ;  in  erect  rather  dense  lurid-green  tufts,  intermediate 
between  F.  taxifolius  and  adiantoides.  Stems  sparingly  branched,  fasci- 
culate at  base,  rigid.  Leaves  densely  crowded,  firm,  lineal  lanceolate, 
parabolically  acute,  the  nerve  reaching  apex  or  vanishing  below  it ; 
vag.  lam.  reaching  half  length  of  leaf,  inferior  lam.  lanceolate,  narrowed 
and  slightly  decurrent  at  base ;  margins  very  minutely  serrulate,  in 
upper  part  crenato-serrate,  all  with  a  pale  border  of  four  rows  of  incras- 
sate  rounded  cells,  the  other  cells  obscure  and  smaller  than  those  of 
F.  adiantoides.  Setae  from  middle  and  lower  part  of  stem,  short,  pale 
red,  the  perichaetial  bracts  ovate  concave,  extended  into  a  narrow 
lamina;  capsule  rather  small,  ovate  suberect  or  inclined,  brown,  lid 
rostrate,  nearly  equal  to  capsule,  peristome  deep  red,  the  teeth  strong, 
cleft  to  middle  into  two  nearly  equal  rough  legs  ;  spores  small.  Male 
plants  in  distinct  tufts,  the  infl.  axillar,  bracts  short,  broadly  ovate, 
apiculate. 

HAB. — Wet  rocks  near  the  sea  and  on  the  ground  in  hilly  places.     Fr.  12—3. 


FISSIDENTACE^E.J  77  [Fissidens. 

Gale  green  (Wilson  1837).  Stokenchurch  woods,  Oxon  (Dr.  Ayrcs  1841)  !  Beddgelert, 
Dennant  and  Conway  (Wilson  1861)  !  !  Croesor  and  Rhaglans  (Wilson  1863) !  High 
rocks,  Tunbridge  wells  (Mitten).  Treveylor  valley,  Penzance  (Curnow  1868)  !  !  Levens 
and  Rayrigg,  near  Bowness,  Westmoreland  $  ,  ?  (Barnes  1869) !  !  Beeston  Castle 
hill  (Wilson  1836).  Fin  Glen,  Campsie,  and  Tarbet,  Cantire  (Hunt  1864)  !  Llanberis 
(Col.  Palgrave  1865).  Ben  Voirlich  (Shaw  1862).  Glengariff  and  Kenmare  road  (Hunt 
1864) !  Muckross  (Wilson  1866). 

In  general  aspect  this  moss  comes  nearest  to  F.  taxifolius  and  in  structure 
to  F.  adiantoides,  but  the  leaf  cells  are  decidedly  smaller  than  in  the  latter 
species,  and  the  pale  border  more  marked. 

ii.    FISSIDENS  TAXIFOLIUS  (L.)  Hedw. 

Autoicous ;  fasciculate  at  base ;  leaves  oblongo-ligulate,  nerve 
excurrent,  margin  minutely  serrate ;  capsule  from  base  of  stem,  oblong, 
cernuous,  lid  rostrate.  (T.  XI,  D.) 

SYN. — Muscus  jUiclfolhis  sen  pennattis  minor,  pinnulis  pluritnis  ad  mediant  costam  annexis 

latiusculis  crebris  RAY  Syn.  st.  Brit.  2  ed.  35  (1696). 
Hypnum  rcpens  filicifolium  now  ramosum,  pediculis  brevioribus  ad  radicem  egredientibus 

DILL,  in  RAY  Syn.  3  ed.  88  (1724). 

Hyp.  taxiformc  minus  basi  capsuliferum  DILL.  Hist.  muse.  263,  t.  34,  f.  2  (1741) ;  et  Herb. 
Hyp.  taxifolium  L.  Sp.  pi.  ii,  1122  (1753) ;  Fl.  Suec.  1013  ;  Syst.  Nat.  708.     Huns.  Fl.  angl. 

418  (1762).     WEISS  Crypt,  gott.  216  (1770).     NECK.  Meth.  muse.  151  (1771).    WITH. 

Bot.  arr.  Br.  veg.  680  (1776).     LIGHTF.  Fl.  scot,  ii,  740  (1777).     WEB.  Sp.  Fl.  gott.  43 

(1778).     Fl.  Dan.  t.  473,  f.  i.   RELH.  Fl.  cant.  407   (1785).    VILL.  PI.   Dauph.  iii,  894 

(1786).    HOFFM.  Deutsch.  Fl.  ii,  55  (1796).     SM.  Eng.  Bot.  t.  426.     ABBOT  Fl.  bedf.  244 

(1798).    HULL  Br.  Fl.  P.  2,  267  (1799). 
Fissidens  taxifolius  HEDW.  Fund.  muse.   P.  II,  91   (1782) ;  Sp.  muse.  135,  t.  39,  f.  i — 5 

(1801).     ROTH  Fl.  germ,  i,  459  (1788).     ROHL.  Moosg.  Deutsch.  228  (1800)  ;  Deutsch. 

Fl.  iii,  77  (1813).     P.  BEAUV.  Prodr.  57  (1805).     SCHULTZ  Fl.  Starg.  292  (1806).     BRID. 

Sp.  muse,  i,  168  (1806) ;   Mant.  muse.  189  (1819)  ;   Bry.  univ.  ii,  692  (1827).     WAHLEN. 

Fl.  Lapp.  332   (1812)  ;  Fl.  carp.  342  (1814).     SCHWAEGR.  Suppl.  I,  P.  II,  10  (1816). 

MART.  Fl.  cr.  Erl.  no  (1817).     FUNCK  Moost.  33,  t.  22  (1821).     HUEBEN.  Muse.  germ. 

222  (1833).     DE  NOT.   Syll.  muse.  n.   115    (1838);  Epil.  briol.  ital.   481    (1869).     BR. 

SCHIMP.  Br.  eur.  i,  Mon.  9,  t.  4  (1843) ;   Syn.   muse.   108  (1860),  et  2   ed.  118   (1876). 

RABENH.  Deutsch.  Kr.  Fl.  ii,  P.  3,  305   (1848).     C.  MUELL.   Syn.  muse,  i,  50  (1849). 

WILS.  Bry.  Brit.  308,  t.  16  (1855).     HARTM.    Skand.  Fl.     BERK.   Handb.   Br.    m.    157, 

t.    14,  f.  3    (1863).     MILDE   Bry.   siles.  83    (1869).     HOBK.   Syn.  Br.   m.   138   (1873). 

HUSN.  Mouss.  nord-ouest  62  (1873). 
Fuscina  taxifolia  SCHRANK  Baiers.  Fl.  ii,  451  (1789). 
Dicranum   taxifolium   SIBTH.    Fl.   oxon.   279   (1794).     ROTH.  Fl.   germ,   iii,   180    (1795). 

SWARTZ  Muse.  Suec.  31  (1799).     SMITH  Fl.  brit.  iii,  1233  (1804).     TURN.  muse.  hib.  56 

(1804).     LAM.  DE  C.  Fl.  franc,  i,  480  (1805).     WEB.  MOHR  Bot.  Tasch.  165  (1807). 

SCHKUHR  Deutsch.  Kr.  Gew.  P.  II,  83,  t.  37  (1810).    VOIT  muse.  herb.  37  (1812).     HOOK. 

TAY.  Muse.  brit.  51,1.  16  (1818).     GRAY  Nat.  arr.  Br.  pi.  i,  734  (1821).     BALS.  DE  NOT. 

Pr.  Bry.  med.  132  (1834).     MACK.  Fl.  hibern.  P.  2,  22  (1836). 
Skitophyllum  taxifolium  LA  PYL.  in  DESV.  Journ.  Bot.  1813,  p.  60,  t.  35,  f.  10. 
Schistophyllum  taxifolium  BRID.  MSS.     LINDB. 

Autoicous,  (rhizautoicous)  ;  in  dark  green  depressed  tufts,  fascicu- 
late branched  from  base,  branches  suberect  or  decumbent,  covered  with 
numerous  radicles  at  base.  Leaves  multijugous,  crowded,  expanded, 
incurved  when  dry,  oblongo-ligulate,  decreasing  in  size  towards  base  and 
apex  of  stem ;  nerve  excurrent,  margin  minutely  hyalino-serrate  ;  vag. 
lam.  reaching  half  length,  infer,  lam.  gradually  narrowed  from  middle  to 
base,  not  decurrent. 


FlSSIDENTACE^E.]  78 

Fruit  from  near  base  of  stem,  perich.  bracts  ovate,  concave,  pro- 
longed into  a  sword-shaped  lamina  ;  capsule  on  a  longish  flexuose  red 
pedicel,  cernuous  or  drooping,  oblong,  subturgid,  pachydermous,  rufo- 
fuscous,  contracted  below  mouth  when  dry  ;  lid  convex  at  base,  with  a 
long  curved  beak,  calyptra  cucullate.  Male  infl.  on  short  rooting  ramuli, 
bracts  ovate,  concave,  pointed  ;  antheridia  2  —  3,  without  paraphyses. 
HAS.  —  On  clay  banks  in  woods,  damp  fields,  and  by  road-sides.  Fr.  10  —  12. 

Varying  little,  except  in  size,  and  readily  known  by  the  absence  of 
thickened  border,  crenulate  margin,  and  excurrent  nerve,  and  when  fertile, 
by  the  radical  perichaetia. 

12.    FISSIDENS  ADIANTOIDES  (L.)  Hedw. 

Autoicous  ;  stem  erect,  branched  ;  leaves  oblongo-lanceolate,  acute, 
serrulate  above;  seta  from  middle  of  stem,  capsule  ovate,  lid  long- 
beaked.  (T.  XII,  B.) 

SYN.  —  Muscus  filicifolius  sen  pennatus  aquaticus  maximus.    RAY  Synops.  stirp.  Brit.  2  ed.  35,  n. 

2  (I696).        ' 

Hypnum  erectiim  filicifolium  ramosuni,  pinnulis  ncutis.     DILL,  in  RAY  Synops.  3  ed.  87,  n. 


Hyp.  taxiforme  palustre  ramosum,  majus  et  erectum.    DILL.  Hist.  muse.  264,  n.  3,  t.  34, 
f.  3  (1741)  ;  et  Herb. 


Hyp.  adiantoides  L.  Sp.  pi.  ii,  1123  (1753);  Syst.  nat.  ii,  703;  Syst.  Veg.  950.  HUDS. 
Fl.  angl.  419  (1762).  NECK.  meth.  muse.  153  (1771).  WITH.  Bot.  arr.  Br.  veg.  681 
(1776).  LIGHTF.  Fl.  Scot,  ii,  742  (1777).  WEB.  Spic.  Gott.  48  (1778).  RELH.  Fl.  cant. 


408  (1785).  VILL.  PI.  Dauph.  iii,  894  (1786).  SM.  Eng.  hot.  t.  264  (1795).  HOFFM. 
Deutsch.  Fl.  ii,  55  (1796).  ABBOT  Fl.  bedf.  244  (1798).  HULL  Br.  Fl.  P.  2,  268  (1799). 

Fissidens  adiantoides  HEDW.  Fund.  Muse.  P.  II,  91  (1782) ;  Muse,  frond.  61,  t.  26  (1792). 
ROTH  Fl.  germ,  i,  459  (1788).  BRID.  Muse.  rec.  ii,  P.  I,  145  (1792) ;  Sp.  muse,  i,  171 
(1806) ;  Mant.  muse.  191  (1819);  Bry.  univ.  ii,  702  (1827).  ROHL.  Moosg.  Deutsch.  295 
(1800);  Deutsch.  Fl.  iii,  77  (1813).  P.  BEAUV.  Prodr.  57  (1805).  SCHULTZ  Fl.  Starg.  292 
(1806).  SCHWAEGR.  Suppl.  I,  P.  II,  10  (1816).  MART.  Fl.  cr.  erl.  109  (1817).  FUNCK 
Moost.  33,  t.  22  (1821).  HUEBEN.  Muse.  germ.  224  (1833).  DE  NOT.  Syll.  muse.  n. 
114  (1838)  ;  Epil.  briol.  ital.  478  (1869).  BR.  SCHIMP.  Bry.  eur.  i,  Mon.  10,  t.  5  (1843) ; 
Syn.  muse.  108  (1860)  et  2  ed.  119  (1876).  RABENH.  Deutsch.  Kr.  Fl.  ii,  P.  3,  306 
(1848).  C.MUELL.  Syn.  muse,  i,  51  (1849).  WILS.  Bry.  Brit.  307,  t.  16  (1855).  HARTM. 
Skand.  Fl.  BERK.  Handb.  Br.  m.  156,  t.  14,  f.  2  (1863).  MILDE  Bry.  siles.  83  (1869). 
HOBK.  Syn.  Br.  m.  137  (1873).  HUSN.  Mouss.  nord-ouest  63  (1873). 

Dicranum  adiantoides  SIBTH.  Fl.  oxon.  280  (1794).  ROTH.  Fl.  Germ,  iii,  184  (1795). 
SWARTZ  Muse.  Suec.  31  (1799).  SMITH  Fl.  Brit,  iii,  1234  (1804).  TURN.  Muse.  hib.  57 
(1804).  LAM.  DE  C.  Fl.  franc,  i,  480  (1805).  WEB.  MOHR  Bot.  Tasch.  164  (1807). 
SCHKUHR  Deutsch.  Kr.  Gew.  P.  II,  83,  t.  37  (1810).  VOIT  Muse.  herb.  36  (1812).  HOOK. 
TAYL.  Muse.  brit.  51,  t.  16  (1818).  GRAY  Nat.  arr.  Br.  pi.  i,  733  (1821).  BALS.  DE 
NOT.  Pr.  Bry.  med.  131  (1834).  MACK.  Fl.  hibern.  P.  2,  22  (1836). 

Fiss.  taxifolius  Var.  ft.  WAHLEN.  Fl.  Lapp.  332  (1812). 

Skitophyllum  adiantoides  LA  PYL.  in  DESV.  Jour.  Bot.  1813,  p.  55,  t.  36,  f.  15. 

Schistophyllum  ad.  BRID.  MSS.     LINDBERG. 

Autoicous  ;  in  large  bright  green  or  yellowish  green  tufts.  Stems 
i — 5  in.  high,  generally  prostrate  at  base,  with  subfasciculate  branches, 
which  are  radiculose  at  base.  Leaves  multijugous,  flattened  or  subse- 
cund,  crowded  and  covering  each  other  at  base,  oblong  and  oblongo- 
ligulate,  suddenly  acuminulate  ;  nerve  vanishing  in  the  apex ;  all  margin 


FISSIDENTACE.E.]  79  [Fissidens. 

minutely  serrulate,  toward  apex  eroso-denticulate  with  larger  and  smaller 
teeth;  vag.  lam.  above  half  length  of  leaf;  inferior  lam.  rather  broad, 
with  a  rounded,  non-decurrent  base;  areolation  rather  lax,  rounded- 
subhexagonal,  in  the  old  leaves  in  a  broad  paler  or  yellowish  border  of 
rather  larger  cells.  Capsules  from  middle  of  stem,  on  a  long  red  pedicel, 
cernuous  or  horizontal,  oval-oblong,  pachydermous,  rufo-fuscous,  when 
dry  and  empty,  strongly  contracted  below  the  mouth ;  calyptra  cucullate, 
lid  long-beaked,  about  length  of  capsule ;  teeth  purple,  narrowly  trabe- 
culate  externally,  lamellose  internally.  Perich.  bracts  broadly  ovate 
with  a  sword  shaped  vertical  lamina.  Male  infl.  on  the  stem  near  the 
female,  small,  axillar,  gemmiform,  bracts  broadly  ovate,  abruptly  apicu- 
late,  antheridia  few,  oblong,  minute,  without  paraphyses. 

HAB. — Shady  wet  banks  and  heaths,  subalpine  rocks,  and  at  base  of  walls. 
Not  uncommon.         Fr.  12. 

This  well-known  moss  varies  considerably  in  size  and  colour  according 
to  the  locality,  in  dry  places  being  only  half  an  inch  high,  and  of  a  yellow- 
rufous  tint,  in  wet  places  deep  green  and  approaching  F.  polyphyllus  in  size  ; 
it  occurs  at  a  considerable  altitude  on  the  mountains. 

13.   FISSIDENS   POLYPHYLLUS    Wils. 

Dioicous ;  tall,  scarcely  branched ;  leaves  crowded,  elongato- 
lanceolate,  not  bordered,  entire,  nerved  to  apex;  seta  lateral,  very 
short,  capsule  cylindraceous,  cernuous.  (T.  XII,  C.) 

SYN.-  Fissidens  polyphyllus  WILS.  in  lit.  BRUCH.  SCHP.  Bry.  eur.  vi,  Mon.  Suppl.  T.  III.  (1851) ; 

Syn.  muse.  109  (1860),  et  2  ed.  121  (1876).     BERK.  Handb.  Br.  m.  158  (1863). 
F.asplcnioidesvzr.  ft.  polyphyllus  WILS.  Bry.  Brit.  306,  t.  53  (1855).     HOBK.  Syn.  Br.  m. 

J37  (1873)- 

F.  adiantoidcs  p.  p.  C.  MUELL.  Syn.  Muse,  i,  51. 
F.  Welwitschii  SCHIMP.  Syn.  Muse.  2  ed.  120  (non  Duby). 
F.  polyphylloides  SAUERB.  in  Adumb.  Muse,  ii,  658  (1879). 

Dioicous;  stems  3 — 12,  in.  long,  erect  or  declinate  at  base,  simple 
or  sparingly  branched,  tomentose  with  rufous  radicles.  Leaves  crowded, 
erecto-patent,  flattened  or  secund,  somewhat  twisting  at  apex  and 
flexuose  when  dry,  elongato-lanceolate,  not  bordered,  minutely  crenulate 
at  extreme  point,  nerve  lost  just  below  it ;  vag.  lam.  reaching  beyond 
middle,  infer,  lam.  gradually  narrowed  towards  base,  not  decurrent, 
areolation  minute,  rounded-hexagonal,  with  large  chlorophyl  granules, 
that  of  vag.  lam.  laxer  and  larger. 

Female  plant  small,  ij  in.  high,  seta  about  i  in.  long,  erect,  arising 
near  the  top  of  stem  ;  capsule  inclined  or  horizontal,  pachydermous, 
chestnut  brown,  cylindraceous,  narrowed  at  base  into  a  neck  ;  teeth  of 
peristome  firm,  orange  red,  erect,  rather  short,  cleft  half  way  into  two 


FISSIDENTACE^.]  80  [Fissidetis. 

slender,  unequal,  nodulose  legs;  perich.  bracts  about  5,  ovate,  sheathing, 
with  an  elongated  sword-shaped  lamina.  Male  plant  about  2  in.  high, 
with  longer  leaves,  the  infl.  axillary,  numerous,  8-leaved,  outer  bracts 
small,  ovato-lanceolate,  inner  from  an  obovate  base,  suddenly  passing 
into  a  narrow,  linear,  nerved,  flexuose  lamina,  antheridia  large,  numerous, 
with  few  paraphyses. 
HAB. — Wet  shady  rocks. 

Glengariff,  Ireland  (Wilson  1829)  !  Pont  Aberglaslyn  on  the  right  of  the  road  to 
Tremadoc,  N.  Wales  (Wilson  1838)  !  !  Well  and  river  side  at  Treveylor,  Penzance 
(Curnow  1866)  !  !  Banks  of  the  Dart,  Holne  bridge,  S.  Devon  (Marqnand  1884). 

This  fine  moss  was  first  distinguished  by  Wilson,  but  afterwards  he 
referred  both  it  and  F.  serrulatus  to  the  West  Indian  F.  asplenioides  SWARTZ. 
The  very  interesting  discovery  of  the  fruit  has  confirmed  its  distinctness,  and 
I  am  indebted  to  the  kindness  of  M.  Husnot  for  the  opportunity  of  figuring 
a  specimen,  though,  unfortunately,  without  operculum.  It  was  found  in  the 
"  Breche  de  Toul-an-Dioul,"  near  St.  Rivoal,  Dep.  of  Finistere  by  M.  Camus 
in  June,  1878.  A  form  occurs  in  the  Beddgelert  locality  with  the  leaves 
somewhat  falcato-secund. 


Since  the  above  monograph  was  issued,  an  important  paper  by  Mr.  Mitten 
has  appeared  in  Journ.  Linn.  Soc.  Bot.  XXI,  550  (1885),  which  adds  con- 
siderably to  our  list  of  species,  and  alters  many  of  the  older  views.  This 
necessitated  a  fresh  study  of  these  mosses,  and  as  Mr.  Mitten  has  kindly 
supplied  me  with  most  of  his  types,  I  have  taken  the  opportunity  of  drawing 
them  on  an  additional  plate  and  again  enumerating  our  species,  with  remarks 
where  my  conclusions  differ  from  those  of  the  talented  author.  A  good  paper 
on  the  American  species,  by  Mr.  C.  R.  Barnes,  of  Purdue  University,  Lafa- 
yette, has  also  appeared  in  the  Botanical  Gazette  for  January  and  February, 
1887.  It  must  be  remembered  that  the  optical  aids  to  examination  at  the  end 
of  last  century  were  of  a  very  primitive  kind  and  limited  in  use,  hence  we 
need  not  be  surprised  that  among  the  minute  sorts,  various  species  were  dis- 
tributed under  the  same  name,  because  there  were  no  means  of  certainly 
distinguishing  them,  hence  we  think  too  much  stress  must  not  be  laid  on  her- 
barium specimens  as  types  of  species. 

The  principal  characters  in  Mr.  Mitten's  arrangement  are,  i.  the  position 
of  the  male  inflorescence, — 2.  the  erect  symmetric,  or  inclined  unequal  cap- 
sule,-3.  the  presence  or  absence  of  a  hyaline  limb  to  the  laminae  of  leaf. 
Among  the  small  species  of  Fissidens,  and  in  some  of  the  larger,  we  have 
come  to  the  conclusion  that  the  position  of  the  inflorescence  is  most  variable, 
and  affords  no  stable  specific  character,  as  indeed  Mr.  Mitten  states,  though 
the  key  conveys  a  different  impression  ;  nor  is  much  value  to  be  attached  to 
the  erect  or  inclined  position  of  the  capsule,  for  both  certainly  occur  in  the 
same  species,  though  the  symmetric  or  asymmetric  form,  if  well  marked,  may 
prove  more  reliable,  but  with  respect  to  the  limb  bordering  the  leaves,  we 
attach  more  weight  to  it,  as  constituting  a  character  of  importance  in  the 
structure  of  the  leaf,  and  undoubtedly  of  great  value  in  discriminating  species 
of  such  genera  as  Mnium  and  Bryum. 


FISSIDENTACE^E.J  8 1  [Fissidens. 

i.  FISSIDENS   EXILIS   Hedw. 

Svn.— Fissidens  exilis  HEDW.  1.  c.     HUSN.  Muscol.  gall.  48,  t.  15  (1884). 

Fissidens  Bloxami  WILS.  1.  c.      MITT.  Journ.  Linn.  Soc.  Bot.  xx.,  558  (1885). 

This  no  doubt  was  mixed  up  with  F.  viridulus  and  pusillus  by  the  older 
botanists,  but  Hedwig  had  the  true  plant  as  his  remark  on  the  leaves  testify, 
and  he  also  sent  specimens  of  it  to  Starke  still  preserved  in  his  herbarium 
(fide  Limpricht). 

2.  FISSIDENS   EXIGUUS   Sulliv. 

Dioicous  ;  very  small.  Leaves  4 — 6-jugous,  oblongo-lanceolate, 
uppermost  longer,  not  limbate  or  only  faintly  on  the  vaginant  lamina, 
nerved  nearly  to  apex.  Caps,  erect,  oblong-oval,  lid  conic-rostellate. 
(T,  XII.*  E.) 

SYN. — Fissidens  exiguus  SULLIV.  in   Mem.  Amer.  Acad.  n.  ser.  iii,  p.  60,  t.  2  (1848).      Muse. 
Allegh.   n.    182.     Mosses  Un.  st.  24  (1856).      Icones  muse.  36,  t.   23   (1864).     LESQ. 
JAMES  Mosses  N.  Amer.  84  (1884).     MITT.  Journ.  Linn.  Soc.  Bot.  xxi,  557  (1885). 
Fissidens  viridulus  Var.  Lylel  WILS.  Bry.  br.  304. 
Fissidens  pusillus  /?•  Lylei  BRAITHW.  ante  p.  68. 

Fissidens  incurvits  Var.  exiguus  AUSTIN   Muse,  appalach.  n.   103.      BARNES  Bot.  Gaz. 
1887,  p.  6. 

Dioicous  or  autoicous  ;  very  minute,  densely  gregarious,  yellow- 
green.  Leaves  4 — 6-jugous,  recurved  when  the  stem  is  declinate  at 
base,  oblong-lanceolate,  rather  suddenly  acute-pointed,  accrescent 
upward,  immarginate  or  with  a  faint  limb  to  the  duplicate  lamina  or 
also  to  lower  part  of  the  other  laminae,  inferior  lam.  narrowing  down- 
wards and  vanishing  at  base ;  cells  rounded.  Caps,  erect  or  slightly 
inclined,  oblong-oval,  somewhat  contracted  below  the  mouth,  lid  conic, 
rostellate.  Male  plant  minute,  short,  bracts  two,  with  a  short  ensiform 
lamina. 
HAB. — Stones  in  damp  shady  places.  Fr.  g — 2. 

Tilgate  forest,  on  clinkers  with  F.  incurvus   (Mitten)  !  !     Henfield   (Mitten).     The  form 
Lylei,  Witney,  Oxon  (Boswell,  1878) !  !  &c. 

3.  FISSIDENS  MINUTULUS   Sulliv. 

Dioicous  and  autoicous;  very  small.  Leaves  5 — 8-jugous,  upper 
long,  linear-lanceolate,  acute,  all  narrowly  limbate,  nerved  to  apex. 
Caps,  erect  or  inclined  oblong,  lid  conic,  rostrate.  (T.  XII,*  F.) 

SYN. — Fissidens  minutulus  SULLIV.  in  Mem.  Amer.  acad.  n.  ser.  iii,  p.  58,  t.  2  (1848).  Muse. 
Allegh.  n.  183.  Mosses  Un.  St.  24  (1856).  Icon.  Muse.  37,  t.  24  (1864).  LESQ.  JAMES 
Mosses  N.  Amer.  85  (1884).  MITT.  Journ.  Linn.  Soc.  Bot.  xxi.,  556. 

Fissidens  bryoides  Var.  i  &  2.     HOOK.  WILS.  in  Drumm.  Muse.  Amer.  Coll.  2,  n.  39  &  40. 
Fissidens  pusillus  Var.  madidus  SPRUCE  in  Journ.  Bot.  1880,  p.  361.     BRAITHW.  ante  p.  68. 

Fissidens  incurvus  Var.  minutulus  AUSTIN   Muse.  Appalach.  n.  102.     BARNES  Bot.  Gaz. 
1887,  p.  5. 


FlSSIDENTACE^.]  82 

Dioicous  and  autoicous ;  minute,  bright  green.  Leaves  more 
numerous,  narrowly  limbate,  lower  very  small,  upper  longer,  obliquely 
oblongo-lanceolate  or  linear,  acute  and  long-pointed,  nerved  to  apex, 
inferior  lam.  vanishing  above  the  base,  cells  rounded,  denser.  Caps. 
erect  or  inclined,  oval-oblong,  rather  narrow  ;  lid  conic,  obliquely  ros- 
trate, nearly  as  long  as  caps.  Male  on  a  long  basal  branch  or  on 
separate  plants. 

HAB. — Dripping  stones.     Fr.  10— n. 

Castle  Howard  and  Mowthorpe  Dale  (Spruce) ! !  Stirrup  wood  (Gordon,  Ashton  and 
Nield  1871).  Marple,  Cheshire  (Whitchead  1871).  Levens  (Dr.  Wood  1871). 

A  beautiful  little  moss  of  bright  green  colour,  and  distinct  habit,  which 
has  also  been  found  in  Scandinavia. 

4.     FISSIDENS  VIRIDULUS  (Swartz)  Wahl. 
Ante  p.  70.     HUSN.  Muscol.  gall.  50,  t.  15  (1884). 
Flssidens  pusillus  WILS.  ante  p.  68.    SPRUCE  in  Journ.  Dot.  1880,  p.  360.    HUSN.  op.  c.  49, 

t.  15. 

Fissidens  synanthus  MITT.  Journ.  Linn.  soc.  Bot.  xxi,  554  (1885). 
Fissidens  exilis  MITT.  op.  c.  555. 

Fissidens  holomitrius  SPRUCE  Journ.  Bot.  1880,  p.  356. 
Fissidens  sepincola  MITT,  in  lit. 

Synoicous,  autoicous  or  dioicous  ;  varying  also  in  size  and  in  the  direc- 
tion of  the  capsule,  which  is  however  more  or  less  symmetric.  Mr.  Mitten's 
specimens  of  F.  sepincola  sent  to  me  are  F.  exilis  of  this  work.  In  F.  synanthus 
not  one-half  of  the  specimens  are  synoicous,  the  male  infl.  being  basal  or  on 
a  separate  plant. 

5.  FISSIDENS    INCURVUS   Starke. 

Ante,  p.  69.  JURATZ.  Laubm.  oesterr.-ung.  61  (1882).  HUSN.  Muse.  gall.  49,  t.  15 
(1884).  LESQ.  JAMES  Mosses  N.  Amer.  82  (1884).  MITT.  Journ.  Linn.  soc.  Bot.  xxi, 
557- 

Fissidens  Bambergeri  SCHIMP.  Synops.  2  ed.  115  (1876).  HUSN.  1.  c.  MILDE  in  Bot. 
Zeit.  1864,  Beil.  p.  12. 

Var.  /?.  tamarindifolius  (Don).     Ante,  p.  69. 

Fissidens  tamarindifolius  MITT.  Journ.  Linn.  soc.  xxi,  557  (1885). 

Oakwood,  Romiley,  Cheshire  and  Ashton  (Scholefield  and  Whitehead).  Charlesworth, 
Derby  (Whitehead). 

6.  FISSIDENS   TEdUENDAMENSIS  Mitt. 

SYN.— Fissidens  Tequendamensis  MITT.  Journ.  Linn.  soc.  Bot.  xii,  601  (1869). 
Fissidens  Orrii  LINDB.    Ante,  p.  73. 

The  Irish  plant  is  identical  with  Weir's  from  the  Andes  of  New 
Granada,  and  adds  another  to  the  group  of  species  common  to  these  two 
distant  regions  of  the  world.  It  is  very  close  to  F.  Algarvicus  SOLMS,  which 
has  a  similar  minute  capsule  and  long  seta,  and  leaves  of  the  same  form, 
but  with  denser  oval  cells. 


FISSIDENTACE^.]  83  [Fissidens. 

7.  FISSIDENS   BRYOIDES   (L.)   Hedw. 

Ante,  p.  71.    JURATZ.  Laubm.  oesterr.-ung.  60.     HUSN.  Muscol.  gall.  47,  t.  14  (1884). 
Var.  f3.  intermedius  Rut  he. 

Leaves  more  oblong,  with  broader  points  suddenly  acutate,  and  narrower 
border,  the  imfer.  lam.  vanishing  at  or  below  the  middle  of  the  vag.  lam. 
(T.  XII.*  D.) 

SYN. — Fissidens  bry aides  Var.  exilis  SCHIMP.  Bry.  eur.  fasc.  42,  Suppl. 

F.  bryoides  Var.  intermedius  RUTHE  in  RABENH.     Bryoth.  eur.  n.  1160  (1872). 
Fissidens  impar  MITT.  Journ.  Linn.  soc.  Bot.  xxi,  554  (1885). 

HAB. — Three  bridges,  Sussex    (Mitten    1845) !  !      Botanic   Garden,  Dublin 
(Moore). 

This  variety  evidently  forms  part  of  Hedwig's  figures  of  F.  bryoides  in 
Muse,  frond,  iii,  t.  29,  and  the  specimen  from  Mr.  Mitten,  which  I  have 
figured,  has  no  axillar  $  infl.  but  it  is  radical  on  a  very  short  branch,  and 
Ruthe  states  it  also  occurs  as  naked  antheridia  in  the  upper  axils  as  well  as 
on  separate  plants. 

8.  FISSIDENS   CURNOWII  Mitt. 

Autoicous ;  robust,  pale  green.  Leaves  multijugous,  long,  lanceo- 
late, narrowly  limbate.  Caps,  short,  inclined,  ovate-oblong,  pale ;  lid 
conic-rostellate.  (T.  XII*  G.) 

SYN. — Fissidens  bryoides  var.  ccespitans  SCHIMP.  ante,  p.  72.      HUSN.  Muse.  gall.  47,  t.   14 
(1884). 

Fissidens  Curnowii  MITT.  Journ.  Linn.  soc.  Bot.  xxi,  556. 

Autoicous  ;  in  dense  extended  matted  tufts,  interwoven  with  long 
purple  radicles,  pale  green,  glaucescent.  Stems  i — ii  in.  high,  erect, 
sparingly  branched.  Leaves  10 — 2O-jugous,  long  linear-lane,  thin,  the 
limb  strong,  vanishing  below  the  apex,  which  is  sometimes  minutely 
serrate.  Caps,  small,  inclined,  leptodermous,  pale  greenish-brown,  on 
a  red  seta,  ovate  or  oblong;  lid  conic,  rostellate,  acute.  Male  infl. 
axillary. 

HAB. — Coast  about  Penzance  (Curnow)  !  !     Lundy  island  and  Lyme  regis  (Mitten).     Bolton 
woods,  Yorks.  (Wild  1876).     Tyn-y-groes  (Holt). 

Although  this  moss  comes  very  near  F.  bryoides,  its  general  habit  and 
texture  are  so  different  that  I  have  followed  Mr.  Mitten  in  regarding  it  as  a 
species,  though  probably  it  is  connected  with  F.  bryoides  by  intermediate 
forms. 

9.  FISSIDENS  FONTANUS  Schimp. 

Dioicous  or  autoicous  ;  tall,  dull  lurid  green.  Leaves  multijugous, 
lineal-lingulate,  the  limb  stout,  vanishing  below  apex.  Caps,  erect,  lid 
conico-rostellate.  (T.  X,  D,  0.) 


FISSIDENTACE.E.]  84  [Fissidens. 

SYK.— Fissidens  incurvus  var.  /?.  fontanus  BR.  Sen.  Bry.  eur.  fasc.  17,  Mon.  7,  t.  i  (1843). 

Fissidens  crassipes  WILS.  JUR.VTZ.  Laubm.  oesterr.-ung.  62  (1882).     LESQ.  JAMES  Mosses 

N.  Amer.  83  (1884). 
Fissidens  mildcanus  SCHIMP.  in  litt.      MILDE  in  RABENH.  Bryoth.  n.  470.     Bot.  Zeit.  1862, 

p.  459.     DE  NOT.  Epil.  bri.  ital.  482. 
Fissidens  viridulus  var.  fontanus  ante  p.  71. 
Fissidens  fontanus  SCHIMP,  MITT.  Journ.  Linn.  soc.  Bot.  xxi,  556. 

Dioicous  or  autoicous  ;  dull  lurid  green.  Stems  weak  i — 2  in.  high, 
flexuose,  ascending.  L.  succulent,  lineal-lingulate,  acuminate,  limb 
thick,  yellow,  unequal,  vanishing  with  the  nerve  below  the  irregularly 
crenulate  apex  ;  cells  larger.  Caps,  suberect,  ovate,  contracted  below 
the  mouth  when  dry,  narrowly  annulate,  on  a  stout  yellow-red  seta  ; 
lid  conico-rostellate. 

Ilkley  (Dr.  Carrington  1855).  Ravensdale  and  Monsal  dale  (Holt  1883).  More  allied  to  the 
next  species  than  to  F.  viridulus. 

10.  FISSIDENS  RIVULARIS  Spruce. 

Autoicous ;  robust,  dark  green.  Leaves  multijugous,  elongate- 
lineal,  with  a  very  thick  border  confluent  at  apex  with  the  nerve.  Caps, 
cernuous,  oval,  lid  conico-rostellate.  (T.  XII*,  A.) 

SYN. — Fissidens  bryoides  var.  rivularis   SPRUCE   Muse,  pyren.  n.  318  (1847)  ;  Trans.  Bot.  soc. 

Edin.  iii,  193  (1849).      Journ.  Bot.   1880,  p.  359. 
Fissidens  rivularis  SCHIMP.      Bry.  eur.  fasc.  46-47  Suppl.  2  (1851).      Synops.  105  (1860), 

2  ed.  114.     HUSN.  Muse.  gall.  47,  t.  15  (1884). 
Fissidens  pyrenaicus  SPRUCE  Trans.  Bot.  soc.  Edin.  1849,  p.  194. 

Autoicous  ;  dark  lurid  green,  csespitant,  plants  £ — i  in.  high,  divided 
at  base  or  sparingly  branched.  Leaves  12 — 2o-j"ugous,  crowded,  patu- 
lous,  rather  rigid,  elongate-lineal,  with  a  thick  limb  confluent  at  apex 
with  a  stout  nerve  in  a  blunt  apiculus,  infer,  lam.  vanishing  at  base,  cells 
round,  dense,  chlorophyllose.  Caps,  on  a  short  slender  pale  terminal 
seta,  cernuous,  becoming  erect  when  old,  small,  oval,  leptodermous,  pale 
fuscous,  exannulate,  lid  conic,  shortly  rostrate,  red.  Male  infl.  axillar, 
very  numerous,  gemmaceous,  minute,  bracts  3,  very  thin,  lax,  the  upper 
lam.  forming  an  apiculus. 
HAB.— On  stones  wet  with  spray.  Fr.  8—9. 

On  a  rock  in  Fairlight  glen,  Hastings  (Holmes  1884)  ! ! 

An  excellent  species,  and  a  fine  addition  to  our  flora,  remarkable  for  the 
very  short  slender  seta,  which  is  often  curved  and  flexuose. 

ii.    FISSIDENS  RUFULUS  Schimp. 

Ante  p.  74.    Also  found  on  stones  in  the  R.  Wharfe,  Bolton  bridge  (West)  !  !  and  Glynhir, 
Caermarthen  (Rev.  A.  Ley  1879). 


FISSIDENTACE.E.]  84A  [Fissidens. 

12.     FISSIDENS  OSMUNDOIDES  (Swavtz)  Hedw. 

Ante  p.  73.    Found  richly  in  fruit  at  Kinder  Scout  (Whitehead  and  Holt  1883).     Tintwistle, 
Cheshire  (Whitehead). 

13.     FISSIDENS  SERRTJLATUS  Brid. 

Ante  p.  75.     HUSN.  Muse.  gall.  52,  t.   16   (1884).     BOTTINI   Ricerche   briol.   nell'Isola 
d'Elba  25  (1886). 

Fissidens  Langei  DE  NOT.  MITT.  Journ.  Linn.  soc.  Bot.  xxi,  559. 

The  Marquis  Bottini,  in  the  paper  quoted,  has  exhausted  the  subject  of 
the  various  forms  of  this  species,  and  shown  conclusively  that  F.  Langei, 
which  is  the  British  form,  must  be  retained  under  F.  sermlatus,  having  also 
terminal  setae,  and  differing  only  by  its  papillose  leaves  with  a  colored  margin 
of  about  4  rows  of  cells,  but  which  is  variable  in  tint  and  extent.  He  also 
regards  F.  polyphyllus  as  a  variety,  a  view  with  which  at  present  we  do  not 
coincide. 

14.    FISSIDENS  TAXIFOLITJS  (L.)  Hedw. 
Ante  p.  77.     MITT.  op.  c.  558. 

15.    FISSIDENS  CRISTATUS  Wils. 

SYN. — Fissidens  cristatus  WILS.  in  Kew  Journ.  Bot.  ix,  294  (1857).     MITT.  Journ.  Linn.  soc.  i, 

Suppl.  137  (1859). 
Fissidens  decipiens  DE  NOT.  ante  p.  76.     HUSN.  Muse.  gall.  51,  t.  16    (1884).     BARNES  in 

Bot.  Gaz.  1887,  p.  27. 
Fissidens  adiantoides  MITT,  in  Journ.  Linn.  soc.  Bot.  xxi,  559  (1885). 

Although  Mitten  refers  this  species  to  F.  adiantoides  of  Hedwig,  I  look  upon 
that  name  as  already  occupied  by  the  plant  of  Linnaeus,  certainly  the  same 
as  that  usually  so  called  ;  and  although  Hedwig's  figure  does  look  more  like  the 
present  plant,  I  do  not  think  it  conclusive,  for  F.  adiantoides  (L.)  is  usually 
dioicous.  Dr.  Spruce  finds  a  tall  form  with  distant  narrow,  slightly  crisped 
leaves,  growing  on  grassy  hillocks  under  shade  of  Rosa  spinosissima  at  Cone}  s- 
thorpe,  which  is  identical  with  one  found  in  Bhotan  by  Wallich.  The 
species  is  widely  distributed  throughout  the  whole  northern  hemisphere. 

Var.  (3.  brevifolius  Lindb. 

Leaves  dense,  about  half  the  length  of  those  in  the  typical  form,  the 
serratures  less  distinct  or  almost  obsolete,  the  pale  border  narrower. 

HAB. — Near  O'Sullivan's  hotel,  Killarney  (Lindberg  1873)  • ' 

1 6.    FISSIDENS  ADIANTOIDES  (L.)  Hedw. 

Ante  p.  78.     JURATZ.  Laubm.  oesterr.-ung.  65.     HUSN.  Muse.  gall.  52,  t.  16. 
Fissidens  majtis  MITT.  Journ.  Linn.  soc.  Bot.  xxi,  559  (1885). 

Var.  /?  collinus  Mitt. 

Autoicous ;  short,  tufted  £ — 1£  in.  high,  erect. 


FlSSIDENTACE^E.]  846 

SYN. — Fissidens  adiantoides  j3.   marginatus  BRID.  Bry.  univ.  ii,  704  (sec.  Schimper). 
Fissidens  collinus  MITT,  in  Journ.  Linn.  soc.  Bot.  xxi,  559. 

HAB. — Chalk  downs  among  short  grass.    Fr.  12.    Woolsonbury  hill  (Mitten)  I  \ 
Tring  (Holmes)  !  ! 

This  is  the  small  form  alluded  to  in  the  Bryologia  europaea,  and  I  do  not 
find  the  slightest  difference  in  the  cells  from  those  of  F.  adiantoides,  which  is, 
however,  more  frequently  dioicous  than  autoicous.  See  MILDE  (48  Jahres- 
bericht  d.  Schles.  Ges.  p.  131)  1870. 

17.     FISSIDENS  POLYPHYLLUS  Wils. 

Ante  p.  79.     BOULAY  in  Rev.  bryol.  1885,  p.  50. 

HUSN.  Muse.  gall.  52,  t.  16  (1884).     MITT.  Journ.  Linn.  soc.  Bot.  xxi,  559  (1885). 

F.  serrulatus  Var.  polyphyllus  BOTTINI  Rich,  briol.  nell'is.  d'Elba  32  (1886). 

Boulay  as  well  as  Bottini  regards  this  species  as  a  northern  variety  of 
F.  serrulatus. 


TAB.  X.  A.  Fissidens  exllis  (Keston,  Braithwaite).  B.  Fiss.  pusillus  (Hill  cliff  dingle, 
Wilson),  y.  Fiss.  minutulus  (Castle  Howard,  Spruce).  C.  Fiss.  incttrvus  (Durdham 
downs,  Miss  Attwood).  D.  Fiss.  viridulus  (Ecclesbourne,  Holmes),  ft.  Fiss.fontanus 
(Oxford,  Boswell).  E.  Fiss.  bryoides  (Woodford,  Braithwaite).  ft.  Fiss.  Curnowii. 
F.  Fiss.  tequendamcnsis  (Tolka  river,  Orr). 

TAB.  XI.  A.  Fiss.  osmundoidcs  (Longfield  moor,  Nowell).  B.  Fiss.  rufulus  (Rigmaden  Park, 
Dreesen).  C.  Fiss.  serrulatus  (Teneriffe  and  Penzance,  Curnow).  D.  Fiss.  cristatus 
(Rayrigg,  Barnes). 

TAB.  XII.  A.  Fiss.  taxifolius  (Hastings,  Braithwaite).  B.  Fiss.  adiantoides  (Knutsford  moor, 
Hunt).  C.  Fiss.  polyphyllus.  a.  Finistere  (Camus),  b.  Glengariff,  (Wilson).  c. 
(Penzance,  Curnow). 

TAB.  XII*.  A.  Fiss.  rivularis  (Hastings,  Holmes).  B.  E.  Fiss.  exiguus  (Sussex,  Mitten).  C. 
Fiss.  viridulus  (Hurst,  Mitten).  D.  Fiss.  bryoides  ft.  (Sussex,  Mitten).  F.  Fiss. 
minutulus  (Castle  Howard,  Spruce).  G.  Fiss.  Curnowii,  (Penzance,  Curnow),  H. 
Fiss.  incurvus  ft.  (Ashley,  Hunt).  I.  Astomum  mediterranean  (Isle  of  Man,  Holt). 

a.  Fertile  plant.  a*.  Ditto  mag.  b.  Male.  c.  Sterile  plant.  i.  Leaf  mag.  ix. 
Trans,  section.  zaa.  Apex  and  areolation.  2.  Perichietium.  3.  Male  infl.  4. 
Bract  and  antheridia.  5.  Capsule.  6.  Calyptra.  7.  Tooth  of  peristome. 


*  Moss-Fl. 


FISSIDENTACE^E. 


T.X. 


Fiss.  exilis. 


F   pusillus. 


l.a.a 


F.   bryoides. 


I. a. a 


Fiss.    Orrii. 


l.Braithwaite  del. ad  not.  D. Blair  Hth. 


Ninltrn  Sros.imp. 


BTMbsa-Fl. 


FISSIDENTACE.fi. 


T.XI. 


R.BrcuOuratie  del.cuL  not.  D.BUur  IM 


BT  Moss  Fl. 


FISSIDENTACE.E. 


T.  XII. 


F.taxifolms. 


F.adiantoides. 


F.polyphyil-us. 


R:Bratifm-atie  del.  ad  not . D  Blair  I 


ad  7uct,  <lel   E.Carter 


Mmtarn.  Sros  vnp 


LEUCOBRYACE^E 


OCTOBER   IST,  1881. 


LEUCOBRYUM   HAMPE. 
1.    L.  glaucum  (L)  Schimp. 


t  t  ELEUTHEROPHYLLE^E. 

Leaves  in  several  rows,  inserted  horizontally,  free  from  adnate 
stipules. 

Fam.  6.     LEUCOBRYACE^. 

Mosses  of  a  pale  glaucous  green  colour,  white  and  brittle  when  dry, 
growing  in  dense  spongy  tufts.  Leaves  in  many  rows,  lanceolate,  con- 
cave, composed  almost  entirely  of  the  dilated  nerve,  which  consists  of 
several  layers  of  empty  parenchymatous  cells,  with  their  internal  walls 
perforated  by  foramina,  and  a  central  series  of  3-4-angled,  chlorophyl- 
lose  duct-like  cells.  Capsule  oblong,  cernuous  or  erect ;  peristome 
resembling  that  of  Dicranum,  of  16  or  8  teeth.— Inhabiting  the  ground 
or  rotten  wood. 

The  very  striking  plants  referred  to  this  family  are  almost  entirely  tropical, 
and  are  remarkable  for  their  pale  colour,  and  the  composite  structure  of  their 
leaves,  compared  by  some  authors  to  that  of  Sphagnum,  to  which  however 
they  are  not  allied.  The  family  was  established  by  Hampe,  and  named 
Leucophaneae,  but  was  altered  by  C.  Mueller  to  Leucobryaceae  to  accord 
with  the  principal  genus,  and  comprises  about  65  species,  nearly  half  belong- 
ing to  Leucobryum,  the  other  genera  being  Leucophanes,  Schistomityium  and  Octo- 
Uephantm.  Our  British  species  is  the  sole  representative  in  Europe,  and  in 
the  other  three  quarters  of  the  globe  seems  to  be  replaced  by  the  equally 
common  Octoblepharum  albidum.  Lindberg  reunites  the  family  to  Dicranaceae, 
as  he  finds  that  the  leaves  of  D.  albicans  and  longifolium  in  section,  quite 
resemble  in  structure  those  of  Leucobryum.  The  leaves  have  generally  been 
described  as  nerveless,  but  it  is  more  correct  to  regard  them  as  consisting 
almost  entirely  of  nerve,  for  careful  observation  will  show  that  near  the  base, 
there  is  at  the  edges  a  very  narrow  but  distinct  lamina  of  only  a  single 
stratum  of  narrow  elongated  cells.  On  the  terminal  leaves  of  the  stem  of 
female  Leucobryum  glaucum,  it  is  common  to  find  a  minute  tuft  of  radicular 
tomentum  developing  a  cluster  of  young  plants,  which  falling  to  the  ground 
grow  to  a  new  colony,  and  thus  compensate  for  the  rarity  of  the  fruit.  Mr. 
Barnes  tells  me  that  it  is  difficult  to  keep  the  lids  on  the  capsules,  as  the 
moss  continues  its  growth  even  in  the  press,  and  to  prevent  this  he 
recommends  those  who  are  fortunate  enough  to  find  it  in  fruit,  to  dip  it  into 
boiling  water  before  pressing. 

LEUCOBRYUM     HAMPE. 

(Regensb.  Bot.  Zeit.  1837,  *»  282.) 

Densely  csespitose  mosses  of  a  whitish  or  glaucous  colour,  with 
dichotomous  and  fastigiate  ramification.  Calyptra  dimidiate,  cucullate. 
Capsule  pachydermous,  unequal,  often  strumose,  plicate  when  dry, 


LEUCOBRYACE^.]  86  [Leucobryum. 

terminal  or  lateral  by  innovation ;  peristome  of  16  teeth,  bifid  and  tra- 
beculate  as  in  Dicranum.  Leaves  composed  of  2  or  more  strata  of  large 
empty  rectangular  parenchymatous  cells,  having  their  internal  walls 
perforated  by  large  circular  foramina,  and  a  central  series  of  narrow 
quadrangular  chlorophyllose  cells.  Terrestrial,  on  heaths  and  in  woods. 
— Deriv.  Acv/cos  white,  (3pvov  a  moss. 

LEUCOBRYUM  GLA.UCUM  (L.)  Schimp. 

Dioicous ;  densely  compacted,  whitish,  glaucous.  Leaves  crowded, 
erecto-patent,  entire,  broadly  lanceolate,  cuspidate,  with  incurved 
margins;  perichastial  convolute,  acuminate.  Capsule  oval,  cernuous, 
strumose,  sulcate,  lid  with  a  long  oblique  subulate  beak.  (T.  XIII.) 

SYN. — Muscus  trichoides  montanus  albidus  fragilis  DOODY.  RAY  Synops.  stirp.  brit.  2  ed.  app. 

339  (1696).     MORIS.  Hist.  oxon.  iii,  630,  S.  xv,  t.  6.  fig.  22  (1699). 
Bryum  trichoides,  erectis  capitulis,  albidum  fragile  DILL.  Cat.  Giss.  225  (1719) ;  et  in  RAY 

Synops.  3  ed.  97,  n.  29  (1724). 
Bryum  albidum  et  glaucum  fragile  majus,foliis  erectis,  setis  brevibus  DILL.  Hist.  muse.  362, 

T.  46,  fig.  20  (1741) ;  et  herb. 
Bryum  glaucum  L.  Sp.  pi.  ii,  iri8  (1753) ;  Syst.  Nat.  ii,  701.     HUDS.  Fl.  angl.  407  (1762). 

NECK.  Meth.  muse.  226  (1771).     WITH.  Bot.  arr.  Br.  Veg.  ii,  673  (1776).     LIGHTF.  Fl. 

Scot,  ii,  723  (1777).     Fl.  Dan.  t.  824,  fig.  3  (1780).     HOFFM.  Deutsch.  Fl.  ii,  38  (1796). 

ABBOT  Fl.  Bedf.  239  (1798).     HULL  Brit.  Fl.  P.  2,  263  (1799). 
Hypnum  glaucum  WEISS  Cr.  gott.  208  (1770).     WEB.  Fl.  gott.  75  (1778). 
Fuscina  glauca  SCHRANK  Bayers.  Fl.  ii,  457  (1789). 
Mnium  glaucumWiru.  Bot.  arr.  Br.  Veg.  3  ed.  iii,  801  (1796). 
Dicranum  glaucum  HEDW.  Fund.  muse,  ii,  92  (1782) ;  Sp.  muse.  135  (1801).      ROTH  Tent. 

Fl.  germ,  i,  461  (1788),  et  iii,  161.     SIBTH.  Fl.  oxon.  281  (1794).     SWARTZ  Disp.  muse. 

suec.  35   (1798).     BRID.  Muse.  rec.  ii,  P.  I,  165  (1798) ;  Sp.  muse.  I,  205  (1806) ;  Mant. 

muse.  66  (1819) ;  Bry.  univ.  i,  407  (1826).     ROEHL.  Moosg.  Deutsch.  351  (1800) ;  Deutsch. 

Fl.  iii,  75  (1813).     SMITH  Fl.  brit.  iii,  1216  (1804) ;  Eng.  Bot.  t.  2166.     TURN.  Muse.  hib. 

73  (1804).     P.  BEAUV.  Prodr.  54  (1805).     SCHULTZ  Fl.  starg.  299  (1806).     WEB.  MOHR 

Bot.  Tasch.  66  (1807).     VOIT  Muse,  herbip.  38  (1812).     SCHWAEG.  Suppl.  I,  P.  I,  187,  t. 

48  (1811).     MART.  Fl.  cr.  Erl.   105  (1817).     HOOK.  TAYL.  Muse.  Br.  52,  t.  21  (1818). 

GRAY  Nat.  arr.  Br.  PI.  i,  734  (1821).     HOOK.  Fl.  Scot.  P.  2,  131  (1821) ;    Brit.  Fl.  ii,  37 

(1833).     FUNCK  Moost.  30,  t.  21   (1821).    ZENK.  DIETR.  Muse.  Thuring.  n.  40  (1822). 

HUEBEN.   Muse.  germ.  234   (1833).    BALS.   DE  NOT.   Prod.  Bry.  Mediol.    133  (1834). 

MACKAY  Fl.  hib.  P.  2,  22  (1836).    DE  NOT.  Syll.  muse.  n.  276  (1838). 
Leucobryum  vulgare  HAMPE  in  Reg.  bot.  zeit.  1837,  P-  282,  et  in  Linnaea  1839,  p.  42. 

C.  MUELL.  in  Linn.  1843,  p.  687;  Syn.  muse,  i,  74  (1849).     RABENH.  Deutsch.  Kr.  Fl.  ii, 

P.  3,  120  (1846). 

Oncophorus  glaucus  BR.  SCHIMP.  Bry.  eur.  fasc.  41,  mon.  t.  1-2  (1849). 

Leucobryum  glaucum  SCHIMP.  Coroll.  Br.  eur.  19  (1855).  Synops.  101,  et  2  ed.  109.  WILS. 
Bry.  Brit.  82,  t.  16  (1855).  JENS.  Bry.  Dan.  t.  II,  f.  10  (1856).  BERK.  Handb.  Br.  m. 
276,  t.  23,  f.  6  (1863).  MILDE  Bry.  Siles.  79  (1869).  DE  NOT.  Epil.  Briol.  ital.  285 
(1869).  HOBK.  Syn.  Br.  m.  49  (1873).  HUSN.  Mouss.  nord-ouest  60  (1873). 

Dioicous;  in  very  dense  cushioned  tufts,  pale  glaucous  green 
above,  pale  dirty  brown  below.  Stems  1-6  in.  high,  dichotomous,  fas- 
tigiate,  not  radiculose.  Leaves  in  13  rows,  soft,  patent,  rarely  sub- 
secund,  entire,  from  an  oval-oblong  base,  lanceolate,  tubulose  from  the 
incurved  margins ;  lower  half  with  a  very  narrow  lamina  of  slender 
prosenchymatous  cells.  Perichastial  bracts  sheathing,  lanceolate-subu- 
late ;  seta  elongated,  rufous,  twisted  to  the  right  when  dry.  Calyptra 


LEUCOBRYACE.E.]  87  [Leucobryum. 

subinflated,  rostrate.  Capsule  exannulate,  gibbous-ovate  or  oblong, 
glossy  castaneous,  when  old  blackish,  cernuous,  strumose,  8-striate, 
furrowed  when  dry ;  peristome  deep  purple,  of  16  lanceolate  teeth,  cleft 
below  the  middle  into  two  unequal  legs  ;  lid  conic,  rostrate,  longer  than 
capsule  ;  spores  ferruginous,  smooth. 

Male  plants  in  distinct  tufts,  more  slender,  with  terminal  stellate 
inflorescence ;  perigonial  bracts  6,  ovate,  concave,  antheridia  10-12, 
oblong. 

HAB. — Wet  heaths  and  woods,  common.  Fr.  rare,  10—3. 

In  fruit,  Bantry  (Miss  Hutchins,  1812)  !  Near  Rufus  stone,  New  Forest  (Lycll,  1813)  ! 
Cornwall  (Tozcr)  !  Woods  about  Beaconsfield  and  Dropmore  (Herb.  Hook.)  !  Foot  of 
Knockindack,  Kircudbright  (y.  Cru,  1840)  !  Criffel,  Do.  (Gardiner,  1840).  Clova 
(R.  Brown).  Bramshill  Park,  Hants.  (R.  S.  Hill,  1861).  Near  Exeter  (Parfitt,  1855). 
Ardingly  (Woods).  Chailey  Common,  Sussex  (Mitten).  Ulpha  moss,  Levens  (Barnes, 
1866) !  !  Birch  wood  near  Burnham  Beeches  (Latimer  Clark,  Howse)  !  !  Near  Great 
Marlow  (T.  Walker).  Dartmoor  (Dr.  de  Crespigny,  1870).  Bog  below  Lambert's  Castle, 
Lyme  Regis  (A.  Lister,  1876).  Morden  Park,  Holwell,  Dorset  (Revs.  H.  Wood  and 
O.  P.  Cambridge,  1879) !  ! 

The  male  plant  is  very  scarce,  and  the  proliferous  points  of  the  branches 
may  be  easily  mistaken  for  male  inflorescence ;  the  fruit  appears  to  be 
produced  through  a  large  part  of  the  year. 


TAB.  XIII. 

Leucobryum  glaucum. 

a.  b.  Female  and  male  plant  (Ulpha  moss,  Barnes),  i.  Leaf,  i  a.  Apex  of  same, 
i  ab.  Areolation  of  base,  i  x.  Transverse  section,  showing  foramina  and  chlorophyllose 
ducts.  i  xv.  Vertical  section.  2.  Perichaetial  bract.  3.  Male  infl.  4.  Antheridia, 
paraphyses  and  bract.  5.  Capsules.  6.  Calyptra.  7.  Operculum.  8.  Teeth  of  peristome. 
p.  Young  plants  and  radicular  protonema  at  apex  of  sterile  stem.  p*.  Single  plant  from 


Vloss-Fl. 


LEUCOBRYACEjfi. 


T.  XUI. 


Leu.c  . 


Jt .  VrazOcwaiia,  del.  ad  not .  J.  Mtaer,./,  Fitch,  VOt,. 


3fattr.ru>  Brof  hrrp. 


DICRANACE^. 


DICRANACE^.J  92  [Archidium. 

or  columella  ;  spores  developed  in  the  single  sporogonial  cell,  few,  very 
large,  smooth.  Calyptra  saccate,  very  thin,  tearing  irregularly  and 
adhering  in  fragments  to  the  capsule.—  Der.  apx^iov  the  beginning. 


ARCHIDIUM  ALTERNIFOLIUM   (Dicks.)  Schimp. 

Paroicous  ;  leaves  distant,  ovato-lanceolato-acuminate  ;  perichsetial 
bracts  larger,  crowded,  from  a  broadly  ovate  base,  lanceolate-subulate, 
with  the  nerve  excurrent,  the  margin  obsoletely  toothed.  (T.  XIV,  A.) 

Svu.—Phascum  alternifolium  DICKS.  Cr.  fasc.  I,  2,  T.  i,  fig.  2  (1785).     RELH.  Fl.  cant.  Suppl. 

alt.   18  (1788).    WITH.  Bot.  arr.  B.  Veg.  3  ed.  786  (1796).    ABBOT  Fl.  Bedf.  229  (1798). 

HULL  Br.  Fl.  P.  2,  252  (1799).     HEDW.  Sp.  muse.  24  (1801).     SM.  Fl.  Brit,  iii,   1157 

(1804)  ;    Eng.  Bot.  t.  2107.     SCHWAEGR.  Suppl.  i,  P.  I,  10,  T.  10  (1811).    HOOK.  TAYL. 

Muse.  Br.  6,  t.  5  (1818).     GRAY  Nat.  arr.  Br.  pi.  i,  711  (1821). 
Phase,  globiferum  BRUCH  in  Reg.  hot.  zeit.  1825,  I,  p.  281,  t.  i. 
Pleuridium  alternif.  BRID.  p.p.  Mant.  muse.  10  (1819),  et  Bry.  univ.  ii,  161  (1827). 
Phase.  Bruchii  SPRENG.  in  L.  syst.  veg.  iv,  142  (1827).     HUEBEN.  Muse.  germ.  5  (1833). 
Archid.  phascoides  BRID.  Br.  univ.  i,  747,  t.  Suppl.  3  (1826).     SCHWAEGR.  Suppl.  Ill,  P.  I,t. 

205    (1827).      BR.   SCHIMP.   Bry.   eur.   fasc.  i   (1837).      DE  NoT-  Sy11-  n-  391   (l838)- 

HARTM.  Skand.  Fl.       C.  MUELL.  Syn.  muse,  i,  13  (1849).    WILS.  Bry.  Brit.  24,  t.  5 

(1855).     HUSN.  Mouss.  nord-ouest  37  (1873). 
Archid.  alternifolium  SCHIMP.  Syn.  28  (1860),  et  2  ed.  23  et  810  (1876).     BERK.  Handb.  Br. 

m.  305,  t.  24,  f.  10  (1863).     MILDE  Bry.  Siles.  131  (1869).     DE  NOT.  Epil.  Bri.  ital.  728 

(1869).     HOBK.  Syn.  Br.  m.  26  (1873). 

Paroicous  or  autoicous  ;  in  flat  lax  dull  green  patches.  Plants 
very  small,  at  first  simple,  later  becoming  branched,  prostrate  with  erect 
innovations,  and  many  slender  small-leaved  flagella.  Stem  leaves 
remote,  minute,  narrowly  lanceolate,  perich.  bracts  forming  a  coma, 
crowded,  much  longer,  from  an  oval  concave  base,  lanceolate-subulate, 
denticulate  at  apex  ;  nerve  narrow,  vanishing  in  the  apex  ;  areolation 
rectangular  at  base,  rhomboid  above.  Capsule  terminal,  or  lateral  by 
innovation,  concealed  in  the  perichaetium,  soft,  pale  yellow,  globose, 
breaking  up  at  maturity.  Spores  very  large,  about  16,  smooth  yellowish. 
Antheridia  in  the  axils  of  the  perich.  bracts,  or  at  base  of  perichsetium, 
enclosed  in  two  or  more  small  ovate  nerveless  bracts. 

HAS.  —  Wet  fields  and  heaths,  not  rare.  Fr.  3  —  5. 

Gamlingay  bogs  (Relhan).  Stevington  bogs  (Abbot).  Belfast  (Drummond)  !  Henfield 
(Borrer)  !  Hareley  wood  (Nowcll  1856)  !  !  Mere  and  Ashley,  Cheshire  (Hunt)  !  ! 
Brighton  and  Tilgate  forest  (Davies)  !  !  Todmorden  (Nowell)  !  !  Glenprosen  (Fergusson). 
Dunnottar,  Banchory  (Sim  1870)  !  Coleshill,  Warwick.  (Bagnall). 

This  curious  little  moss  varies  in  size,  and  also  in  the  density,  length 
and  width  of  the  leaves  and  extent  of  the  nerve,  which  is  sometimes  ex- 
current.  Although  the  capsule  differs  in  structure  from  all  other  mosses  by 
the  absence  of  a  spore  sac  and  columella,  its  affinity  is  so  close  to  Pleuridium 
in  habit  and  foliage,  that  it  seems  to  be  better  placed  near  that  genus,  than  to 
regard  it  with  Schimper  as  the  type  of  a  distinct  family  and  order  of 


DICRANACE^.J  93  [Pleuridium. 

anomalous  mosses.  Without  the  fruit  it  bears  much  resemblance  to  Pleuridium 
alternifolium  with  which  it  was  confounded  by  the  early  botanists.  Our  species 
is  the  only  one  found  in  Europe,  but  several  closely  allied  forms  occur  in 
N.  America. 


2.      PLEURIDIUM    BRID. 

(Mant.  muse.  10  (1819). ) 

Plants  very  small,  often  producing  flagella.  Leaves  lanceolate  and 
lanceolate-subulate,  nerved,  glossy.  Capsule  cleistocarpous,  on  a  short 
pedicel,  ovato-globose,  with  a  short  point,  smooth,  glossy.  Calyptra 
small,  cucullate.  Spores  rather  large,  granular. — Deriv.  TrAev/uSiov  at 
the  side. 

CLAVIS  TO  THE  SPECIES. 

Perich.  bracts  like  the  leaves ;  nerve  narrow ;  cells  large,  lax.  axillare. 

Perich.  bracts  much  longer  than  the  leaves  ;  nerve  broad ;  cells  small. 

Paroicous,  perich.  bracts  lanceolate-subulate.  subulatum. 

Autoicous,  perich.  bracts  oval,  suddenly  narrowed  to  a  long  setaceous 
point.  altirnifottmn. 


i.     PLEURIDIUM  AXILLAEE  (Dicks.)  Lindb. 

Paroicous ;  leaves  and  bracts  narrowly  lanceolate,  acute,  serrulate, 
pale  and  glossy,  laxly  areolate ;  nerve  thin,  vanishing  below  apex. 
Capsule  oval.  (T.  XIV,  B.) 

Sw.—Phascum  axillare  DICKS.  Cr.  fasc.  I,  2,  T.  i,  f.  3  (1785).  SM.  Eng.  Bot.  1. 1036  (1802)  ;  Fl. 
Brit,  iii,  1149  (1804).  TURN.  Muse.  hib.  i  (1804).  WEB.  MOHR  Bot,  Tasch.  63  (1807). 
ROEHL.  Ann.  Wett.  ges.  i,  193  (1809),  et  Deutsch.  Fl.  iii,  35  (1812).  LA  PYL.  J.  Bot. 
(1813).  HOOK.  TAYL.  Muse.  Brit.  7,  t.  5  (1818).  CASSEB.  in  Ann.  Wett.  ges.  iv,  94  (1819). 
GRAY  Nat.  arr.  Br.  pi.  i,  711  (1821).  HOOK.  Fl.  Scot.  P.  2,  122  (1821) ;  Br.  Flora  ii,  3 
(1833).  NEES  HORNSCH.  Bry.  germ,  i,  6i,t.6,f.  15  (1823).  HuEBEN.Bry.germ.4  (1833). 
BALS.  DE  NOT.  Prod.  Bry.  mediol.  175  (1834).  MACKAY  Fl.  hib.  P.  2,  p.  8  (1836). 
DE  NOT.  Syll.  muse.  n.  401  (1838). 

Pkascum  nitidum  HEDW.  Stirp.  cr.  i,  92,  t.  34  (1787) ;  Sp.  muse.  19  (1801).  TIMM  Fl.  meg. 
n.  717  (1788).  SCHRANK  Bayers.  Fl.  ii,  434  (1789).  WITH.  Bot.  arr.  Br.Veg.  3  ed.  iii, 
787  (1796).  HOFFM.  Deutsch.  Fl.  ii,  20  (1796).  Brid.  Muse.  rec.  ii,  P.  i,  15  (1798) ;  Sp. 
muse.  I,  6  (1806) ;  Mant.  7  (1819) ;  Bry.  univ.  i,  35  (1826).  HULL  Br.  Fl.  P.  2,  252  (1799). 
SCHRAD.  J.  Bot.  1799,  p.  55.  ROTH  Fl.  germ,  iii,  P.  i,  113  (1800).  ROEHL.  Moosg. 
Deutsch.  24  (1800).  P.  BEAUV.  Prodr.  82  (1805).  ScHULTzFl.  Starg.  272  (1806).  SCHKUHR 
Deutsch.  Kr.  gew.  P.  II,  4,  t.  i,  f.  i  (1810).  SCHWAEGR.  Suppl.  I,  p.  i,  7  (1811).  MART.  Fl. 
cr.  Erl.  126  (1817).  BR.  SCHIMP.  Bry.  eur.  fasc.  i,  p.  12,  t.  6  (1837).  WILS.  Bry.  brit. 
34,  t.  5  (1855).  HUSN.  Mouss:  nord-ouest  35  (1873).  HOBK.  Syn.  Br.  m.  30  (1873). 

Phase,  curvicollum  (non  EHRH.)  SWARTZ  Sum.  Veg.  Scand.  38  (1814).  HARTM.  Skand. 
Fl.  i—8  edd.  (1820-61). 

Astomum  nitidum  HAMPE  in  Linnaea  (1832).     C.  MUELL.  Synops.  i,  17  (1849). 
Ephememm  nitidum  HAMPE  in  Reg.  bot.  Zeit.  1837,  P«  I>  2%5> 
Astomum  axillare  HAMPE  in  Linnsa  xii,  553  (1838). 
Phase,  stagninum  WALLR.  in  Linnsea  xiv,  680  (1840). 


DICRANACE^.]  94  [Pleuridium. 

Pleuridium  nitidum  RABENH.  Deuts.  Kr.  Fl.  ii,  P.  3,  79  (1848).  BR.  Sen.  Br.  eur.  fasc.  43 
Suppl.  t.  i  (1850);  Synops.  23  (1860),  et  2  ed.  24  (1876).  BERK.  Handb.  Br.  m.  298 
(1863).  MILDE  Bry.  siles.  132  (1869).  DE  NOT.  Epil.  Bri.  ital.  731  (1869). 

Pleuridium  axillarc  LINDB.  in  Ofver.  Vet.  Akad.  forh.  xx,  407  (1863),  et  xxi,  584.  FALK 
Beskrifn.  ofver  Skand.  muse,  cleist.  20. 

Paroicous ;  plants  very  small,  slender,  simple  or  branched,  pale 
glossy  green.  Leaves  and  perich.  bracts  alike,  erecto-patent,  lanceo- 
late or  lineal-lane,  acute,  serrulate  at  apex,  channelled,  carinate ;  cells 
large,  lax,  pellucid,  linear-rectangular;  nerve  slender,  vanishing  at  f 
length  of  leaf.  Capsule  on  a  short  pedicel,  small,  elliptic-ovate,  shortly 
rostellate,  pale  brown,  often  pseudo-lateral  with  the  seta  arcuate. 
Calyptra  covering  only  top  of  capsule.  Spores  ferruginous. 

HAB. — Wet  clay  fields  and  banks  and  by  dried  up  pools,  not  uncommon. 
Fr.  10— 2. 

Var.  /?.  strictum  (Dicks.) 

Plants  smaller,  very  short,  lurid  green ;  leaves  and  bracts  closer, 
narrower,  straight ;  capsule  nearly  spherical. 

SYN.— Phascum  strictum  DICKS.  Cr.  fasc.  IV,  i,  t.  10,  f.  i  (1801).     SM.  Fl.  Brit,  iii,  1151 ;  Eng. 

Bot.  t.  2093.     BRID.  Sp.  muse.  I,  5  ;  Mant.  7  ;  Bry.  univ.  i,  34.     SCHWAEGR.  Suppl.  I,  P. 

I,  n.    LA  PYL.  in  Journ.  Bot.  1813,  p.  281. 

Pleurid.  nitidum  ft.  minimum  RABENH.  Deutsch.  Kr.  Fl.  ii,  P.  3,  79. 
Phase,  nitidum  Var  /?.  strictum  WILS.  Bry.  Br.  35. 

HAB.— Scotland  (Dickson.) 

Repeated  innovation  takes  place  on  the  same  stem  and  thus  several 
capsules  appear  above  each  other,  and  being  thrust  aside  by  the  new  growth 
acquire  a  lateral  or  axillar  appearance. 

2.    PLEURIDIUM  SUBULATUM  (Huds.)  Rabenk. 

Paroicous ;  stems  short,  simple.  Perichaetial  bracts  lanceolate- 
subulate,  minutely  serrulate,  nerve  broad,  continuous.  Capsule 
roundish-ovate.  (T.  XIV,  C.) 

SYN. — Muscus  trichoides  minor  acaulos,  capillaceis  foliis,  DOODY.  RAY  Synops.  2  ed.  app.  324 

(1696)  ;  Hist.  PI.  iii,  39  (1704). 
Sphagnum  acaulon  trichoides  DILL.  Cat.  Giss.  229  (1719);  in  RAY  Synops.  3  ed.  105  (1724); 

Hist.  muse.  251,  T.  32,  f.  10  (1741),  et  Herb. 
Phascum  subulatiim  HUDS.  Fl.  angl.  397  (1762).     L.  Sp.  pi.  2  ed.  ii,  1570  (1763).     OEDER 

Fl.  Dan.  t.  249  (1766).    WITH.  Bot.  arr.  Br.  veg.  ii,  660  (1776).     CURT.  Fl.  Lond.  t.  67 

(1778).     RELH.  Fl.  Cant.  Suppl.  16  (1786).     SIBTH.  Fl.  Oxon.  272  (1794).    ABBOT  Fl. 

bedf.  229   (1798).     HULL  Br.  Fl.  P.  2,  251  (1799).     SM.  Fl.  Brit,  iii,  1149  (1804);    Eng. 

Bot.   t.   2177.      TURN.   Muse.   hib.   i    (1804).      WEB.   MOHR   Bot.   Tasch.   64   (1807). 

SCHWAEGR.  Suppl.  I,  P.  I,  2  (1811).     HOOK.  TAYL.  Muse.  Brit.  p.p.  6,  t.  5  (1818)     GRAY 

Nat.  arr.  Br.  pi.  i,  711  (1821).     HOOK.  Fl.  Scot.  P.  2,  121  (1821);    Br.  Fl.  ii,  3   (1833). 

Hartm.  Skand.  Fl.     NEES  HORNSCH.  Bry.  germ,  i,  63,  p.p.  t.  6,  f.  16  (1823).     BRUCH  in 

Reg.  bot.  Zeit.  1825,  P.  I,  279,  excl.  syn.  T.  i.     HUEBEN.  Muse.  germ.  6,  excl.  syn.  (1833). 

BR.  SCHIMP.  in  Mem.  soc.  mus.  Strasb.  ii,  3,  t.  A.  excl.  syn.  (1835) ;    Bry.  eur.  i,  Mon. 

15,  t.  7  (1837).     MACKAY  Fl.  hib.  P.  2,  7  (1836).     DE  NOT.  Syll.  muse.  n.  403  (1838). 

FIOR.   MAZ.  Bry.  rom.  2  ed.   i  (1841).     WILS.  Bry.  Brit.  35,  T.  5  d,  excl.  syn.  (1855). 

HUSN.  Mouss.  nord-ouest  36  (1873).     HOBK.  Syn.  Br.  m.  30  (1873). 
Astomum  subulatum  HAMPE  in  Reg.  bot.  zeit.  1837,  P.  i,  p.  285.     C.  MUELL.  Synops.  i, 

14  excl.  syn.  (1849). 


DICRANACE2E.]  95  [Pleuridium . 

Pleuridium  subnlatum  RABENH.  Deutsch.  Kr.  Fl.  ii,  P.  3,  79  excl.  syn.  (1848).     BR.  SCH. 

Bry.  eur.  fasc.  43   Suppl.  t.  i  excl.  syn.  (1850) ;    Synops.  24  (1860),  et  2  ed.  25  (1876). 

BERK.  Handb.  Br.  m.  298  (1863).     MILDE  Bry.  siles.  132  (1869).     DE  NOT.  Epil.  Briol. 

ital.  731  (1869). 
Pleuridium  acuminatum  LINDB.  in  Ofv.  vet.  ak.  forh.  1863,  p.  406,  et  1864,  p.  585.      FALK 

Beskrif.  ofver  Skand.  muse,  cleist.  21. 
Phascum  acuminatum  LINDB.  in  HARTM.  Sk.  Fl.  9  ed.  ii,  78  (1864). 

Paroicous  ;  pale  green ;  stems  simple,  csespitant.  Leaves  small, 
ovato-lanceolate ;  perich.  bracts  sometimes  subsecund,  lanceolate  at 
base,  gradually  subulate,  rather  glossy,  channelled,  minutely  serrulate ; 
nerve  broad  and  flat,  continuous,  scabrous  at  back  of  apex  ;  cells  at  base 
rectangular,  empty,  upper  much  narrower,  linear.  Capsule  brownish 
yellow,  spherical  or  oval,  rather  truncate  at  base,  with  a  short  straight 
apiculus.  Calyptra  covering  £  of  capsule.  Spores  ferruginous.  Anthe- 
ridia  naked  in  the  axils  of  the  perich.  bracts. 

HAB. — Sandy  banks,  heaths  and  sides  of  paths.     Common.  Fr.  3 — 4. 

3.    PLEURIDIUM  ALTERNIFOLIUM  (Kaulf.)  Rabenh. 

Autoicous ;  simple  or  with  longish  flagella.  Perich.  bracts  from  an 
oval  base,  abruptly  narrowed  into  a  very  long  subula,  nerve  broad  and 
thick.  Capsule  oval,  apiculate.  (T.  XIV,  D.) 

SYN. — Phascum  subulatum  SCHREB.  de  Phasco  obs.  8  (1770) ;  Spic.  Fl.  Lips.  71  (1771).     HEDW. 

Stirp.  cr.  i,  93  t.  35  (1787) ;  Sp.  muse.  19.     ROEHL.  Moosg.  Deutsch.  i,  26  (1800).     ROTH 

Fl.  germ,  iii,  P.  i,  109  (1800).     HOPPE  iu  STURM  Deutsch.  Fl.  ii,  heft  6  (1803).     SCHKUHR 

Deutsch.  Kr.  Gew.  P.  II,  4,  t.  i  (1810).     BRIDEL  p.p.     LINDB.  in  HARTM.  Sk.  Fl.  9  ed. 

ii,  78  (1864). 
Phascum  alternifolium  KAULF.  in  STURM  op.  cit.  heft  15  (1815).    BRUCH  in  Reg.  bot.  zeit. 

1825,  P.  i,  273,  t.  i.     HUEBEN.  Bry.  germ.  4  (1833).     BR.  SCH.  in  Mem.   soc.  mus. 

Strasb.  ii,  i,  t.  A  (1835)  '•>  Bry.  eur.  i,  15,  t.  7  (1837).     DE  NOT.  Syll.  muse.  n.  402  (1838). 

WILS.  Bry.  Brit.  35,  t.  37  (1855).     HUSN.  Mouss.  nord-ouest  36  (1873).     HOBK.  Syn. 

Br.  m.  30  (1873). 
Astomum  alternifolium  HAMPE  in  Reg.  bot.  zeit.  1837,  P-  2^5-     C.  MUELL.  Synops.  i, 

14  (1849). 
Pleuridium  alternif.  RABENH.  Deutsch.  Kr.  Fl.  ii,  P.  3,  79  (1848).     BR.  SCH.  Br.  eur.  fasc. 

43,  Srppl.  t.  2  (1850).     SCHIMP.  Synops.  24  (1860),  et  2  ed.  26  (1876).     BERK.  Handb. 

Br.  m.  299  (1863).     MILDE  Bry.  siles.  133  (1869).     DE  NOT.  Epil.  Briol.  ital.  730  (1869). 

BRID.  Mant.  muse,  et  Bry.  univ.  p.p. 
Pleuridium  subulatum  LINDB.  in  Ofvers.  Vet.  ak.  forh.  1863,  p.  408,  et  1864,  p.  586.     FALK 

Beskrif.  ofver  Skand.  muse.  cl.  22. 

Autoicous;  pale  yellowish  or  dull  green,  \ — i  in.  high.  Stems 
simple,  or  with  longish  small-leaved  flagella  on  the  older  plants. 
Leaves  ovato-lanceolate,  with  the  nerve  vanishing ;  perich.  bracts  from 
an  oval  or  elliptic  base,  scarcely  glossy,  abruptly  attenuated  into  a  very 
long  subula,  channelled,  densely  serrulate  on  the  margin  and  back, 
and  mostly  formed  of  the  broad  thick  nerve  which  is  faint  at  base  ; 
basal  cells  rectangular,  chlorophyllose,  upper  much  smaller,  subquadrate. 
Capsule  immersed,  pale  brown,  spheric-oval,  rather  longly  and  obliquely 
apiculate,  with  a  distinct  neck.  Calyptra  broad,  covering  half  capsule. 


DICRANACEJJ.]  96  [Ditrichum. 

Male  infl.  gemmiform,  axillar ;  the  bracts  ovate,  acuminate,  nerve 
obsolete. 
HAB. — Fallow  fields  and  wet  heaths.     Not  uncommon.  Fr.  5 — 6. 

N.  Wales  (Bowman).  Kinnaird  (Gardiner  1844) !  !  Welburn  (Spruce).  Near  Shotover 
(Boswell)  \  Hale,  Ashley  and  Helsby  (Hunt) !  !  Newtimber  and  Pylcomb  Downs 
(Davits  1862) !  !  Haversham  head,  Westmoreland  (Barnes  1871)  !  Mere,  Cheshire 
(Wilson  1844) !  ! 

Great  confusion  exists  in  the  early  authors  between  this  species  and  the 
last,  and  Archidium  alternif.  and  after  the  latter  is  separated,  we  still  find  the 
majority  of  references  to  PL  subulatum  belong  to  the  present  plant,  due  no 
doubt  to  the  fact  that  it  is  by  far  the  commonest  species  on  the  continent, 
while  PI.  subiilatum  is  much  more  frequent  with  us.  Hedwig's  beautiful  figure 
well  shows  the  male  infl.  and  the  position  of  this,  with  the  long  perich.  bracts 
suddenly  dilated  at  base,  enable  us  readily  to  indentify  PI.  alternifolium. 

3.     DITRICHUM    TIMM. 

(Fl.  Megapolit.  216  (1788).  ) 

Plants  caespitant,  dwarf,  or  tall  and  slender,  living  on  the  ground  or 
on  rocks.  Leaves  lanceolate-subulate,  smooth  and  glossy,  the  areolation 
narrowly  rectangular  above,  lax  and  hexagono-rectangular  at  base. 
Calyptra  narrow,  cucullate.  Capsule  on  a  slender  straight  seta,  usually 
erect,  oval  or  subcylindric,  annulate ;  peristome  erect,  of  16  longish 
teeth  cleft  to  base  into  two  filiform  articulate  papillose  legs,  fixed  on  a 
short  membrane.  Spores  very  small,  smooth. — Deriv.  Sis  two,  £M£  hair. 

Hampe  in  Regens.  bot.  zeit.  1867,  p.  181,  points  out  that  this  genus  was 
founded  by  Timm  on  D.  pusillum,  and  must  supersede  his  own  Lcptotrichum 
not  only  by  right  of  priority,  but  also  because  the  latter  was  already  in  use 
for  a  genus  of  Fungi.  About  25  species  are  known;  but  L.  vaginans  of 
Schimper's  Synopsis,  2  ed.  140,  and  of  Sullivant's  Exsicc.  is  only  a  variety  of 
D.  tortile,  and  differs  from  L.  vaginans  Sull.  Icones.  (see  LINDBERG  Revis. 
crit.  ic.  Fl.  Danica,  p.  107.) 

CLAVIS  TO  THE   SPECIES. 

Leaves  squarrose.    Capsule  very  narrow,  cylindraceous.  tenuifolium. 

Leaves  erecto-patent  or  secund.    Capsule  ovate  or  elliptic. 

Paroicous.     Leaves  patent,  setaceous.  subulatum. 

Dioicous.     Leaves  subsecund  or  falcate. 

Stems  short,  straight ;  leaves  lanceolate-subulate. 

Capsule  cylindric,  lid  shortly  rostellate.  tortile. 

Capsule  elliptic,  lid  conic,  obtuse.  homomallum. 

Stems  tall,  slender,  flexuose ;  leaves  flexuose,  falcate.  flexicaule. 


Sect.  i.  TRICHODON  (Schimp.).  Plants  dwarf,  slender  ;  leaves  sheath- 
ing at  base,  suddenly  subulate,  flexuoso-squarrose.  Capsule  narrowly  cylin- 
draceous. 


DICRANACE^.]  97  [Ditrichum. 

i.    DITBJCHTTM  TENUIFOLIUM  (Schrad.}  Lindb. 

Dioicous ;  stem  short ;  leaves  flexuoso-squarrose,  sheathing  at  base, 
subulate.  Capsule  on  a  slender  pedicel,  very  narrowly  cylindraceous, 
lid  conical.  (T.  XIV,  E.) 

SYN. — Trichostomum  tenuifolium  SCHRAD.  Journ.  Bot.  ii,  P.  i,  58  (1799). 

Trichostomum  cylindricum  HEDW.  Sp.  muse.  107,  t.  24,  f.  7-13  (1801).  BRID.  Sp.  muse.  I, 
230  (1806),  Mant.  83  (1819),  Bry.  univ.  i,  491  (1826).  SCHKUHR  Deutsch.  Kr.  Gew. 
P.  II,  79,  t.  35  (1810).  SCHWAEGR.  Suppl.  I,  P.  i,  142  (1811).  WAHLENB.  Fl.  lapp.  332 
(1812).  FUNCK  Moost.  25,  t.  16  (1821). 

Dicranum  cylindricum  WEB.  MOHR  Bot.  Tasch.  202  (1807).  ROEHL.  Deutsch.  Fl.  iii, 
70  (1813). 

Didymodon  cylindr.  WAHLENB.  Fl.  suec.  ii,  754  (1826).  SOMMERF.  Suppl.  Fl.  lapp.  52 
(1826).  HARTMAN  Skand.  Fl.  HOOK.  Br.  Fl.  ii,  32  (1833). 

Ceratodon  cylindr.  FURNR.  in  Reg.  hot.  zeit.  1829,  P.  2,  erg.  31.  BR.  SCH.  Bry.  eur.  fasc. 
29-30,  t.  3  (1846).  WILS.  Bry.  Brit.  85,  t.  39  (1855).  HARTM.  Skand.  Fl.  7  ed.  Fl.  Dan. 
Suppl.  t.  114,  f.  2.  HOBK.  Syn.  Br.  m.  49  (1873). 

Angstroemia  cylindr.  C.  MUELL.  Synops.  i,  441  (1849). 

Trichodon  cylindr.  SCHIMP.  Coroll.  Br.  euf.  36  (1856).     Synops.  140(1860),  2  ed.  138  (1876). 

BERK.  Handb.  Br.  m.  275  (1863).     MILDE  Bry.  Siles.  134.  (1869).     DE  NOT.  Epil.  Briol. 

ital.  570  (1869). 

Trichodon  tenuifolius  LINDB.  Eur.  Trich.  225  (1864). 
Ditrichum  tenuifolium  LINDB.  Musci   Scand  27  (1879). 

Dioicous ;  gregarious  or  in  small  yellowish  green  tufts  ;  stem  short, 
slender,  simple  or  but  little  divided.  Leaves  patent,  flexuose,  squarrose, 
crisped  when  dry ;  the  lower  small,  ovato-subulate,  upper  lanceolate- 
subulate,  perich.  bracts  from  a  broad  sheathing  base,  suddenly  capillaceo- 
subulate,  the  nerve  broad,  forming  the  whole  upper  part  of  subula,  and 
denticulate  in  the  upper  half;  cells  firm,  narrow,  elongated.  Capsule 
on  a  long  very  slender  pale  reddish  seta,  leptodermous,  very  narrowly 
cylindraceous,  slightly  incurved  in  the  middle,  brown,  erect  or  inclined  ; 
lid  conic,  rather  obtuse,  red  ;  annulus  broad,  revoluble ;  teeth  of  per. 
pale  red,  the  legs  long,  filiform,  rough. 

Male  plant  more  slender,  in  distinct  tufts ;  perig.  bracts  con- 
volute concave,  subulate,  antheridia  numerous  with  slender  paraphyses. 

HAB. — Fallow  fields  and  wet  sandy  ground  ;  rare.  Fr.  5 — 6. 

Castle  Howard  woods  and  Stockton  forest,  York  (Spruce) !  !  Bowdon,  Cheshire  (Hunt 
1868) !  !  Glen  Prosen  (Fergusson  1867) '.  !  Ardingly  and  Tilgate,  Sussex  (Mitten). 
Belfast  (Drummond  1830).  Lancashire  and  Derbyshire  (Wilson).  Fruit  very  rare. 

This  species  has  been  tossed  about  under  various  genera,  but  is  clearly 
at  home  in  the  present  one  ;  it  must  be  carefully  discriminated  from  Dicranella 
crispa  and  Grevillei  which  have  similar  leaves. 

Sect.  2.  EUDITRICHUM  Lindb.  Plants  slender,  short  or  elongated. 
Leaves  divergent,  subsecund  or  falcate,  lanceolate-subulate.  Capsule  oval  or 
subcylindric. 


DICRANACE^E.]  98  [Ditrichuiii. 

2.     DITRICHUM  TORTILE  (Schmd.)  Hampe. 

Dioicous ;  laxly  csespitose  ;  leaves  patent  or  subsecund,  lanceolate- 
subulate,  serrate  at  point,  recurved  at  margin.  Capsule  erect,  sub- 
cylindric,  lid  shortly  rostellate.  (T.  XIV,  F.) 

Sw.—Trichostomum  tortile  SCHRAD.  Samml.  Kr.  Gew,  n.  49  (1797)-  USTERI  Neue  Bot.  Ann. 
Fasc.  xx.  108  (1799).  BRID.  Sp.  muse.  I,  231  (1806)  ;  Mant.  82  (1819)  ;  Bry.  univ.  1,488 
(1826).  SCHWAEGR.  Suppl.  I,  P.  I,  139,  t.  35  (1811).  SCHULTZ  Suppl.  Fl.  Starg.  70 
(1819).  FUNCK  Moostasch.  25,  t.  16  (1821).  HUEBEN.  Muse.  Germ.  300  (1833).  BR. 
SCH.  Bry.  eur.  fasc.  18-20,  p.  14,  t.  10  (1846).  RABENH.  Deutsch.  Kr.  Fl.  ii,  P.  3,  116 
(1848).  WILS.  Bry.  brit.  115,  t.  41  (1855).  HUSN.  Mouss.  nord-ouest  71  (1873).  HOBK. 
Syn.  Br.  m.  62  (1873). 

Dicranum  tortile  BRID.  Muse.  rec.  ii,  P.  I,  129  (1798).  WEB.  MOHR  Bot.  Tasch.  198,  t.  7, 
fig.  12-13  (I8o7).  VOIT  Muse,  herbip.  47  (1812).  ROEHL.  Deutsch.  Fl.  iii,  70  (1813). 

Mnium  tortile  GMEL.  Syst.  nat.  ii,  1328  (1791). 

Didymodon  tortilis  W.-ARN.  Disp.  meth.  37  (1825).     DE  NOT.  Syllab.  muse.  n.  367  (1838). 

Leptotrichum  tortile  HAMPE  Linnaea  1847,  P-  74-  C.  MUELL.  Syn.  i,  454  (1849).  SCHIMP. 
Syn.  143  (1860)  et  2  ed.  130  (1876).  BERK.  Handb.  Br.  m.  262  (1863).  MILDE  Bry. 
Siles.  136  (1869).  DE  Noi\  Epil.  Briol.  ital.  516  (1869). 

Dioicous ;  dwarf,  laxly  csespitose,  pale  glossy  green  ;  stem  simple  or 
little  divided.  Leaves  subsecund  or  patent,  curved,  lanceolate-subulate, 
margin  thickened,  reflexed  to  the  middle,  serrate  at  apex,  nerve  subex- 
current ;  perich.  bracts  similar,  but  longer  and  sheathing ;  cells  at  base 
linear,  elongated,  above  small  and  rounded.  Seta  subflexuose,  slender, 
rufous,  twisting  to  the  left.  Capsule  erect,  narrowly  cylindraceous, 
regular  or  slightly  curved,  leptodermous,  pale  brown ;  annulus  broad, 
revoluble  ;  lid  £  length  of  caps,  red,  conic,  shortly  rostellate  ;  teeth  of 
peristome  on  a  broadish  basal  membrane,  erect,  slightly  incurved  when 
dry,  red,  the  legs  free  or  united  here  and  there,  papillose. 

Male  plants   short,    slender,    infl.   terminal;    bracts  6 — 9,   ovate, 
concave,  subulate,  nerved. 
HAS.— Sandy  banks,  and  old  stone  quarries  ;  rare.  Fr.  10 — 12. 

Castle  Howard  (Spruce  1844)  !  !  Rusthall  common,  Tunbridge  Wells  (Borrer  1846)  ! 
Hurstpierpoint  (Mitten  1846)  !  Sea  shore  near  Whitby  (Ibbotson) !  ! 

Var.  /?.  pusillum  (Hedw.) 

Stems  shorter,  more  densely  crowded.  Leaves  shorter,  nearly  straight. 
Capsule  oval  or  oblong,  peristome  shorter. 

SYN. — Trichostomum  pusillum  HEDW.  Muse,  frond,  i,  74  t.  28,  f.  2,  4,  g,  10  (1787).     ROTH.  Fl. 

germ,  i,  469.     SM.  Fl.  Brit,  iii,  1237.     Eng.  Bot.  t.  2380.     HARTM.  SK.  Fl.  5  ed.  385. 

HUEBEN.  Muse.  germ.  298.     Fl.  Dan.  Suppl.  t.  45,  f.  2. 
Ditrichum  pusillum  TIMM  Fl.  megap.  n.  777  (1788). 
Bryum  pusillum  GMEL.  Syst.  nat.  ii,  1333  (1791). 
Bryum  didymodon  HOFFM.  Deutsch.  Fl.  ii,  43  (1796). 
Didymodon  pusillus  BRID.  Muse.  rec.  ii,  P.  I,  115,  t.  2,  f.  4  (1798),  Sp.  muse.  I,  159  ;  Mant. 

101  ;    Bry.   univ.  i,  509.     SWARTZ  Muse.  suec.  29.     HEDW.  Sp.  muse.  104.     ROEHL. 

Moosg.  D.  242  ;   Deutsch.  Fl.  iii,  56.     P.  BEAUV.  Prodr.  56.     WEB.  MOHR  Bot.  Tasch. 

157.     SCHULTZ  Fl.  Starg.  288.     SCHKUHR  Deutsch.  Kr.  Gew.  P.  2,  67,  t.  30.     SCHWAEGR. 

Suppl.  I,  P.  I,  176.     WAHLENB.  Fl.  lapp.  316;     Fl.  carp.  337.      HOOK.  Br.  Fl.  ii,  31. 

MACK.  Fl.  hib.  P.  2,  19. 


DICRANACE^.]  99  [Ditrichum. 

Barbula  curia  HEDW.  Muse.  fr.  iii,  75,  t.  31  B  (1792) ;  Sp.  muse.  115.     BRID.  Muse.  rec. 

ii,  P.  I,  192.     SCHWAEGR.  Suppl.  I,  P.  I,  119.     SCHULTZ  Rev.  gen.  Barb.  5,1.  32,  f.  2. 
Tortula  curta  SWARTZ  Muse.  Suec.  41.     HOOK.  GREV.  in  Edin.  J.  Sci.  i,  202. 
Dcsmatodon  curtus  BRID.  Mant.  muse.  87 ;  Bry.  univ.  i,  526. 
Trichostomum  tortile  Var  /?.  pusillum  Bry.  eur.  t.  to  ft. 

HAD. — In  similar  localities  and  sometimes  intermixed  with  the  type. 

Near  Belfast  (Drummond).     Dodge's  glen,  Cork  (Carrol).     Castle  Howard  (A.  O.  Black 
1854)  !  ! 

Smaller  than  the  next  species  with  much  shorter  leaves  and  the  lid  with 
a  more  pointed  beak. 

3.  DITRICHUM  HOMOMALLUM  (Hedw.)  Hampe. 

Dioicous ;  caespitose,  dichotomous  ;    leaves  patent  or  subsecund, 

from  an  ovate  base,  subulate,  nerve  broad,  excurrent  in  a  setaceous 

point,    entire.  Capsule    erect,    ovate-oblong,     lid    conical,    obtuse. 
(T.  XIV,  G.) 

SYN. — Wcisia  hctcromalla  HEDW.  Muse.  fr.  i,  22,  t.  8  (1787) ;  Sp.  muse.  72  (1801).  SWARTZ 
Muse.  suec.  26  (1798).  BRID.  muse.  rec.  ii,  P.  I,  77  (1798)  ;  Sp.  muse.  I,  119  (1806); 
Mant.  47  (1819);  Bry.  univ.  i,  361  (1826).  ROEHL.  Moosg.  Deutsch.  161  (1800) ;  Deutsch. 
Fl.  iii,  51  (1813)  ;  Ann.  Wett.  Ges.  iii,  109  (1814).  SCHULTZ  Fl.  Starg.  284  (1806). 
SCHWAEGR.  Suppl.  I,  P.  I,  68  (1811).  WAHLENB.  Fl.  lapp.  321  (1812). 
Afzelia  hcteromalla  EHRH.  PI.  crypt,  n.  173  (1787). 

Bryum   Weisia  DICKS.  Fasc.  cryp.  II,  5  (1790).     WITH.    Bot.  arr.  Br.  veg.  827  (1796). 

HOFFM.  Deutsch.  Fl.  ii,  33  (1796).     HULL  Br.  Fl.  P.  2,  261  (1799). 
Grimmia  hetcromalla  ROTH  Fl.  Germ,  iii,  145  (1795).     SM.  Fl.  Brit,  iii,  1194  (1804),  Eng. 

Bot.  t.  1899.     TURN.  Muse.  hib.  30  (1804).     WEB.  MOHR  Bot.  Tasch.  137  (1807). 
Grimmia  homomalla  SM.  loc.  c. 
Didymodon  homomallus  HEDW.  Sp.  muse.  105,  t.  23,  f.  1-2  (1801).     P.  BEAUV.  Prodr.  56 

(1805).     BRID.  Sp.  muse.  I,  161 ;  Mant.  102  ;  Bry.  univ.  i,  510.    WEB.  MOHR  Bot.  Tasch. 

156.     SCHKUHR  Deutsch.   Kr.  Gew.  P.  2,  64,  t.  29  (1810).     SCHWAEGR.  Suppl.  I,  P.  I, 

116.     VOIT  Muse,  herbip.  35   (1812).     WAHLENB.  Fl.  lapp.  315.     ROEHL.  Deutsch.  Fl. 

iii,  56;  Ann.  Wett.  Ges.  iii,  205.     MART.  Fl.  cr.  erl    96  (1817).     FUNCK   Moost.  21, 

t.  14  (1821). 
Didymodon  hcteromallum  HOOK.  TAYL.  Muse.  Br.  68,  t.  20  (1818).     GRAY  Nat.  arr.  Br. 

PI.  i,  743  (1821).     MACK.  Fl.  hib.  P.  2,  19  (1836). 

Trichostomum  homomallum  BR.  SCH.  Bry.  eur.  fasc.  18-20,  p.  16  t.  12  (1843).     RABENH. 

Deutsch.  Kr.  Fl.  ii,  P.  3,  117  (1848).    WILS.  Bry.  Brit.  116,  t.  20  (1855).     HUSN.  Mouss. 

nord-ouest  72  (1873).     HOBK.  Syn.  Br.  m.  63  (1873). 
Leptotrichum  homomallum   HAMPE  Linn.  1847,  P-  74-     C.  MUELL.  Synops.  i,  453  (1849). 

SCHIMP.  Synops.   143  (1860),  et  2  ed.   141   (1876).     BERK.  Handb.  Br.  m.  263  (1863). 

MILDE  Bry.  siles.  136  (1869).    DE  NOT.  Epil.  Bri.  ital.  515  (1869).    JENS.  Bry.  dan.  100. 

Fl.  Dan.  t.  2688,  f.  i. 

Dioicous  ;  laxly  caespitose,  pale  green,  subsericeous ;  stem  simple 
or  slightly  divided.  Leaves  subsecund,  from  an  ovate  base,  lanceolate- 
subulate  ;  nerve  dilated,  concave,  longly  excurrent,  quite  entire  or  with 
a  few  minute  crenulations  at  point ;  perich.  bracts  sheathing,  longer, 
subfalcate ;  cells  firm,  very  narrow.  Seta  tall,  straight,  purple.  Capsule 
pachydermous,  rufous,  erect,  ovate-oblong  or  subcylindric ;  annulus 
broad,  compound,  rolling  back  spirally  ;  lid  purple,  conic,  obtuse  ;  teeth 
of  per.  purple,  without  basal  membrane,  the  legs  free  or  united. 

Male  plant  slender,  dichotomous,  bracts  lanceolate-subulate. 


DICRANACE^E.]  ioo  [Ditrichum. 

HAB. — Broken  sandy  ground  and  banks  in  subalpine  districts  ;  not  uncommon. 
Fr.  9 — ii. 


Dunkeld  (Borrer).     Rescobie  and  Loch  Lomond  (Gardiner)  \  !     Inverness  and  Helvellyn 
(Greville)  \     Pont  Aberglaslyn  (Wilson)  !  !     Repton  rocks,  Derby  (Pnrchas  1862).     " 
and  Alderly  edge  (Wilson)  \  \     Dunoon  (Hrmt  1865).    Abernethy,  Perth  (Howie)  ! 
morden   and   Hebden   Valley   (Hunt   1867)  !      Ashdown   Forest   (Davies)  \      Dartmoor 


and  Alderly  edge  (Wilson) !  !     Dunoon  (Hunt  1865).    Abernethy,  Perth  (Howie)  !     Tod- 
morden   and   Hebden   Valley   (Hunt   1867)  !      A  '  ' 
(Holmes).     Cheviots  (Hardy).     Ireland  (Moore). 

The  peristome  in  this  moss  is  very  variable,  and  led  the  early  bryologists 
to  separate  it  into  two  species,  their  Weissia,  heteromalla  having  the  legs  of  the 
teeth  united  ;  in  other  forms  they  are  more  or  less  joined  by  transverse  bars. 

Var.  ft.  zonatum  (Funck)  Lindb. 

Stems  elongated,  dichotomous,  sparingly  branched,  in  very  dense  tufts, 
i — 2  in.  high,  pale  brown  and  rufescent  below,  deep  green  above.  Leaves 
shorter,  nearly  straight,  erecto-patent,  appressed  when  dry ;  seta  and  capsule 
shorter. 

SYN. — Weissia  zonata  FUNCK.  BRID.  Bry.  univ.  i,  364. 
Leptotrichum  nivale  C.  MUELL.  Syn.  ii,  611, 

Leptolr.  Molendianum  LORENYZ  MSS.     DE  NOT.  Epil.  Bri.  ital.  517. 
Leptotr.  zonatum  LORENTZ  Verh.  Zool.  hot.  Ges.  Wien.  1867,  p.  683,  t.  22. 
Leptotr.  tenue  Var.  ft,  glaciate  SCHIMP.  Syn.  142. 
Leptotr.  vaginans  Var.  ft.  glaciate  SCHIMP.  Syn.  2  ed.  140. 

HAB. — Mountain  rocks. 

Above  Ffynon  frech,  Snowdon  (Wilson  1828).     Glen  Callater  (Fcrgusson  1868)  !  1     Clough- 
na-ben  (Sim  1869) !     Ben  Lawers  (West  1880) !  !     Snowdon  (Nuttall  1879) ! 

Differing  greatly  in  aspect  from  the  typical  state,  but  the  leaves  agree 
exactly  in  structure,  even  to  the  apical  crenulations.  Always  barren  in 
Britain. 

4.    DITRICHUM  SUBULATUM.  (Bntch)  Hampe. 

Paroicous ;  slender,  short,  tufted ;  leaves  patent  or  secund,  ovate 
at  base,  suddenly  subulate,  entire.  Capsule  oval,  erect ;  lid  conic  with 
a  short  beak.  (T.  XIV,  H.) 

SYN. — Trichostomum  subulatum  BRUCH  in  SALZM.  PL  Tingit.  (1825).     BR.  SCH.  Bry.  eur.  fasc. 

18-20,  p.  17,  t.  131(1843).     WILS.  Bry.  Brit.  117,  t.  42  (1855). 
Didymodon  aureus  DE  NOT.  Spicil.  12  (1837)  '•>  Syll.  muse.  n.  266  (1838). 
Leptotrichum  subulatum  HAMPE  in  Linnaea  1847.     C.  MUELL.  Syn.  i,  448  (1849).    SCHIMP. 

Synops.   145  (1860),  et  2  ed.   143  (1876).     BERK.  Handb.  Br.  m.  263  (1863).     DE  NOT. 

Epil.  Briol.  ital.  514  (1869). 

Paroicous ;  slender,  in  lax,  bright  silky,  yellow-green  tufts ;  stem 
simple,  naked  at  base.  Leaves  patent  or  secund,  straight  when  dry, 
lower  small,  lanceolate,  upper  from  an  ovate  base,  subulate;  nerve 
broad,  excurrent ;  cells  firm,  elongate  quadrate.  Capsule  on  a  purple 
seta,  leptodermous,  ovate,  erect,  golden  brown  ;  annulus  indistinct ;  lid 
convex  conic,  shortly  rostellate ;  teeth  bifid,  red,  very  slender,  scabrous. 
Antheridia  in  pairs  with  paraphyses,  in  the  axils  of  the  upper  leaves. 


DICRANACE^.]  ioi  [Ditrichum. 

HAB. — On  crumbling  rocks  of  clay-slate ;  very  rare.  Fr.  3 — 4. 

Trethowell  near  Truro  (Tozer,  refound  by  Mr.  Tellam  1871)  !  !     Saltash  (Brent  1867)  !  ! 

A  Mediterranean  species  which  like  several  other  plants  of  that  region 
reaches  the  Cornish  shore.  Another  fine  species  L.  pallidum  has  not  yet  been 
added  to  our  list. 

5.     DITRICHUM  FLEXICATJLE  (Schleich.)  Hampe. 
Dioicous  ;  tall,  slender,  densely  tufted ;  stems  branched,  flexuose, 
radiculose  ;  leaves  secund,  lanceolate  at  base,  longly  subulate,  denticu- 
late  at  margin.     Capsule  erect,   ovate-oblong ;    lid .  conic,   rostellate. 
(T.  XV,  A.) 

SvN.—Didymodon  flexicaule  SCHLECH.  PL  cr.  helv.  Cent.  4,  n.  9  (1807).     ROEHL.  Deutsch.  Fl. 

iii,  56  (1813).     BRID.  Mant.  muse.  100  (1819)  ;  Bry.  univ.  i,  506  (1826).     HUEBEN.  Muse. 

germ.  280  (1833).     DE  NOT.  Syll.  muse.  n.  264  (1838),     HARTM.  Skand.  Fl.  275. 
Cynodontium  flexicaule  SCHWAEGR.  Suppl.  I,  P.  I,  115,  t.  29  (1811).     FUNCK  Moost.  20,  t. 

14  (1821). 
Trichostomum  flexic.  BR.  Sen.  Bry.  eur.  fasc.  18-20,  p.  15,  t.  n  (1843).     WILS.  Bry.  Brit. 

116,  t.  42  (1855).     HUSN.  Mouss.  nord-ouest  72  (1873).     HOBK.  Syn.  Br.  m.  62  (1873). 
Leptotrichumflexic.  HAMPE  in  Linn.  1847.     C.  MUELL.  Synops.  {,449  (1849).    JENS.  Bry. 

dan.  ioi  (1856).     SCHIMP.  Syn.  144  (1860),  et  2  ed.  142  (1876).     BERK.  Handb.  Br.  m. 

262  (1863).     MILDE  Bry.  siles.  137  (1869).     DE  NOT.  Epil.  Briol.  ital.  514  (1869).     Fl. 

Dan.  t.  2688,  f.  2. 

Dioicous ;  I — 4  in.  high,  in  dense  soft  yellow-green,  glossy  tufts, 
fuscescent  below ;  stems  slender,  geniculate,  flexuose,  branched,  very 
fragile,  with  abundance  of  fine  radicles.  Leaves  rather  lax,  secund, 
subfalcate,  lanceolate,  longly  subulate,  flexuose  when  dry ;  nerve 
flattened,  excurrent  in  the  subula,  denticulate  at  apex;  cells  short, 
elliptical ;  perich.  bracts  broader  and  sheathing.  Capsule  on  a  slender 
reddish  seta,  erect,  rufous  brown,  ovate  or  elliptic,  small,  leptodermous, 
slightly  unequal ;  annulus  broad,  compound ;  lid  conic,  elongated  ;  teeth 
of  per.  red,  filiform,  unequal,  fragile  and  fugacious. 

Male  plants  slender  in  distinct  tufts,  rare  ;  bracts  ovate,  subulate, 
the  innermost  nerveless. 
HAB. — Limestone  rocks  and  stony  ground  ;  not  uncommon.  Fr.  6. 

Sometimes  near  the  sea,  as  on  Southport  sands :   sands  at  St.  Minver,  Cornwall  (Tellam 
1871) ;  Portmarnock  sands,  Ireland.     Fruit  not  found  in  Britain. 

Var.  /3.  densum  (Br.  Sch.) 

Compactly  tufted  ;  stems  straight,  shorter  and  less  branched.  Leaves 
erect,  shorter,  straight. 

SYN. — BR.  SCH.  Bry.  Eur.     SCHIMP.  Synops.  145,  et  2  ed.  143.     WILS.  Bry.  Brit.  116. 
HAB. — More  mountainous  districts. 

Ben  Lawers  (Dr.  Stlrton).     Chee-dale  and  Miller's-dale  (West)  !  !     Helsington  Barrows, 
Westmoreland  (Barnes)  !  1     Malham  moor  (Hobkirk  1879) !  ! 

This  very  pretty  moss  varies  greatly  in  size,  and  except  in  the  Jura 
mountains  is  everywhere  rare  in  fruit. 


DICRANACE^;.]  102  [Swcirtzia 

4.     SWARTZIA  EHRHART. 

(PI.  crypt,  exsicc.  n.  164  (1787).  ) 

Plants  in  dense  silky  tufts  ;  slender,  fastigiate,  dichotomous.  Leaves 
distichous,  spreading  from  a  semiamplexicaul  base,  subulate,  smooth  ; 
areolation  hexagono-rectangular  at  base,  narrow  and  quadrate  above. 
Calyptra  cucullate.  Capsule  erect  or  cernuous,  glossy,  ovate  or  cylin- 
draceous;  lid  conic.  Teeth  16,  not  confluent  at  base,  lineal-lanceolate, 
irregularly  separated  at  the  divisural  line,  or  variously  torn  or  perforated. 
Spores  smooth. — Inhabiting  rocks  or  the  ground.  Deriv. — Named  in 
honour  of  Olaf  Swartz. 

The  close  alliance  between  this  genus  and  Ditrichum  flexicauk  will  be 
seen  at  a  glance,  yet  Schimper  makes  it  the  type  of  a  distinct  family,  on 
account  of  the  distichous  leaves.  The  name  Swartzia  was  adopted  by 
Schreber  in  1791  for  a  genus  of  Leguminous  plants,  but  it  will  be  seen  that 
Ehrhart's  name  has  four  years  priority,  and  therefore  Schreber's  genus  must 
not  only  give  way  to  Ehrhart's  but  stand  under  its  older  designation  of 
Tounatea  AUBLET  (1775.) 

CLAVIS   TO  THE   SPECIES. 

Capsule  cylindric,  erect.  montana. 

Capsule  ovate,  cernuous.  inclinata. 


i.    SWARTZIA  MONTANA  (Lamk.)  Lindb. 

Paroicous;  leaves  from  an  oblong  base,  longly  subulate,  patent. 
Capsule  erect,  oval-cylindric,  teeth  of  per.  short,  irregularly  cleft. 
(T.  XV,  B.) 

SvH.—Bryam  montanum  LAMARCK  Fl.  franc,  i,  48  (1778).    ALLIONI  Fl.  pedem.  ii,  299  (1785). 
Mnium  capillaceum  SWARTZ  in  nov.  act.  Soc.  ups,  iv,  241  (1784),  excl.  syn.  Dill. 
Bryum  capill.  DICKS.  PI.  cr.  Brit.  fasc.  i,  4,  t.  i,  f.  6  (1785).     HOFFM.  Deutsch.  Fl.  ii,  42 

(1796).    WITH.  Bot.  arr.  Br.  veg.  3  ed.  iii,  831  (1796).     HULL  Br.  Fl.  P.  2,  262  (1799). 
Swartzia  capillacea  EHRH.  PI.  cr.  exs.  dec.  17,  n.  164  (1787).     HEDW.  St.  crypt,  ii,  72,  t. 

26  (1789).     BRID.  Muse.  rec.  ii,  P.  I,  117  (1798).     ROEHL.   Moosg.  Deutsch.  208  (1800). 

P.  BEAUV.  Prodr.  90  (1805). 

Didymodon  capill.  SCHRAD.  Spic.  Fl.  germ.  64  (1794).     ROTH  Fl.  germ,  iii,  P.  I,  199  (1795). 

SWARTZ  Muse.  suec.  28  (1798).    WEB.  MOHR  Bot.  Tasch.  155  (1807).     SCHKUHR  Deutsch. 

Cr.  Gew.  P.  II,  65,  t.  39  (1810).    WAHLENB.  Fl.  lapp.  314  (1812).     VOIT  Muse.  herb.  34 

(1812).     ROEHL.   Deutsch.  Fl.  iii,  55  (1813),  Ann.  Wett.  Ges.  iii,   199.     HOOK.   TAYL. 

Muse.  Br.  67,  t.  20  (1818).     BRID.  Mant.  100  (1819)  ;    Bry.  univ.  i,  504  (1826).     GRAY 

Nat.  arr.  Br.  pi.  i,  743  (1821).     HOOK.  Fl.  Scot.  P.  2,  136  (1821)  ;    Br.   Fl.  ii,  30  (1833). 

HUEB.  Bry.  ger.  281.     MACK.  Fl.  hib.  P.  2, 18  (1836).     HUSN.  Mouss.  nord-ouest  69  (1873). 
Cynontodium  capill.  HEDW.  Sp.  muse.  57  (1801). 
Cynodontium  capill.  BRID.   Sp.  muse.  I,  158  (1806).      SCHULTZ   Fl.   Starg.   289   (1806). 

SCHWAEGR.  Suppl.  I,  P.  I,  114  (1811).     MART.  Fl.  cr.  erl.  95  (1817).     FUNCK.  Moost.  21, 

t.  14  (1821). 

Trichostomum  capill.  SM.  Fl.  Brit,  iii,  1236  (1804)  ;  Eng.  Bot.  t.  1152.     TURN.  Muse.  hib. 
35  (1804). 


DICRANACE.E.]  103  [Swartzia. 

Distichium  capill.  BR.  Sen.  Bry.  eur.  fasc.  29-30,  p.  4,  t.  i  (1846).     RABENH.  Deutsch.  Kr. 

Fl.  ii,  S.  3,  118  (1848).     C.  MUELL.  Syn.  i,  40  (1849).     WILS.  Bry.  Brit.  104,  t.  20  (1855). 

SCHIMP.   Synops.  135   (1860),  et  2  ed.   146  (1876).     BERK.  Handb.  Br.  m.  266  t.  22  f.  7 

(1863).     MILDE  Bry.  siles.  138  (1869).     DE  NOT.  Epil.  660  (1869).     HOBK.  Syn.  Br.  m. 

58  (1873). 
Lcptotrichum  capill.  MITT.  Muse.  Ind.  or.  10  (1859). 

Paroicous;  tall,  slender,  dichotomous,  i — 4  in.  high  ;  in  dense  silky 
green  tufts,  ferruginous  below,  interwoven  with  rufous  tomentum. 
Leaves  from  a  pale  sheathing  ovate  base,  flexuoso-patulous,  lanceolate, 
longly  subulate,  with  a  flattened  nerve,  entire,  or  with  a  few  teeth  at 
apex;  cells  narrow  and  pellucid  at  base,  oblique  and  thin  walled  at  the 
margin  where  the  narrow  part  begins,  rounded-quadrate,  chlorophyllose 
and  subpapillose  in  the  subula ;  perich.  bracts  two,  longly  sheathing. 
Capsule  on  a  firm  red  seta,  twisting  to  the  right  when  dry,  erect  or 
occasionally  subcernuous,  leptodermous,  ovate-oblong  or  cylindraceous, 
regular  or  slightly  curved  on  one  side,  glossy,  rufous ;  lid  red,  conic  ; 
annulus  breaking  up.  Teeth  of  peristome  narrow,  pale  red,  cleft  in  the 
divisural  line,  or  with  the  legs  adhering  or  perforated.  Antheridia  naked 
in  the  axils  of  the  upper  leaves  with  long  paraphyses. 

HAB. — Wet  crevices  of  rocks  on  all  our  mountains.     Miller's  dale,  Derby- 
shire (Mr.  Holt)  ! !  Fr.  5—7. 

Very  variable  in  size  according  to  the  locality,  sometimes  only  reaching 
an  inch  in  height,  at  others  as  much  as  5  in.,  the  colour  also  in  the  older 
plants  becomes  of  a  straw  tint.  Schimper  confidently  cites  the  reference 
"  Mnium  capillaceum  LINN.  Fl.  lapp,"  but  the  plant  does  not  appear  in  that 
work,  and  in  the  2nd  ed.  of  it  by  Smith  (1792),  it  is  entered  at  p.  333  as 
"  Mnium  foliis  capillaceis,  capsulis  erectiusculis  oblongis,  operculo  conico." 

Var.  /?.  compacta  (Hueben.) 

Plants  short,  densely  tufted,  the  leaves  short  and  crowded,  suberect, 
capsule  short,  elliptical. 

SYK.—Didymodon  subulatus  SCHKUHR  Deutsch.  Kr.  Gew.  P.  II,  65,  t.  28  (1810).    WALLR.  Fl. 
cr.  germ,  i,  182. 

Dldym.  distichus  Brid.  Mant.  muse.  101 ;  Bry.  univ.  i,  507. 
Didym.  capillaceus  Var.  /2.  compactus  HUEBEN.  Bry.  germ.  282. 

Distichium  capill.  Var.  (3.  brevifolium  BR.  SCH.  Bry.  eur.    WILS.  Bry.  brit.  105.     SCHIMP. 
Synops.     DE  NOT.  Epil. 

HAB. — Higher  mountains  in  the   North.     Rocks   above  Loch-na-Gat,   Ben 
Lawers  (Bmithwaite  1862.) 

2.     SWAETZIA  INCLINATA  Ehrh. 

Autoicous;  in  small  dull  green  tufts;  leaves  shorter,  narrower, 
more  serrate  at  point.  Capsule  ovate,  cernuous ;  teeth  of  peristome 
broader,  two-legged.  (T.  XV,  C.) 


DICRANACE^E.]  104  [Dicranella. 

SYN. — Afzelia  inclinata  EHRH.  PI.  cr.  exs.  n.  193  (1787). 

Swartzia   inclinata  EHRHART.    HEDW.   Stirp.  crypt,  ii,  74,   t.  27  (1788).     BRID.  muse. 

rec.  ii,  P.  I,  119  (1798).     P.  BEAUV.  Prodr.  90  (1805). 
Bryum  inclin.  DICKS.  PI.  crypt,  fasc.  II,  9  (1790).     LAICHARD.  PI.  eur.  479  (1794).     WITH. 

Bot.  arr.  Br.  Veg.  3  ed.  iii,  835  (1796).     HULL  Br.  Fl.  P.  2,  264  (1799). 
Didymodon  inclin.  SWARTZ  muse.  suec.  28  (1798).     WEB.  MOHR  Bot.  Tasch.  153  (1807). 

SCHKUHR  Deutsch.  Kr.  Gew.  P.  11,641.28  (1810).     WAHLENB.  Fl.  lapp.  314  (1812). 

ROEHL.   Deutsch.  Fl.  iii,  55   (1813) ;  Ann.  Wett.  Gesell.  iii,  198.     HOOK.  TAYL.  Muse. 

Brit.  65,  t.  20  (1818).     HOOK.  Fl.  scot.  P.  2,  135  (1821)  ;  Br.  Fl.  11,28  (1833).     GRAY  Nat. 

arr.  Br.  pi.  i,  742  (1821).     MACK.  Fl.  hibern.  P.  2,   17  (1836).     HARTM.   Sk.  Fl.  4  ed. 

379  (1843)- 

Cynontodium  inclin.  HEDW.  Sp.  muse.  58  (1801). 
Grimmia  inclinata  SM.  Fl.  Brit,  iii,  1193  (1804) ;  Eng.  Bot.  t.  1824. 

Cynodontium  inclin.  BRID.  Sp.  muse.  I,  155  (1806).  SCHWAEGR.  Suppl.  I,  P.  I,  in  (1811). 
FUNCK  Moost.  20,  t.  14  (1821). 

Cynodon  inclin.  BRID.  Mant.  muse.  99  (1819) ;  Bry.  univ.  i,  501  (1826). 

Ceratodon  inclin.  HUEBEN.  Bry.  germ.  273  (1833). 

Distichium  inclin.  BR.  SCH.  Bry.  eur.  fasc.  29-30,  p.  5,  t.  2  (1846).  RABENH.  Deutsch.  Kr. 
Fl.  ii,  S.  3,  118  (1848).  C.  MUELL.  Syn.  i,  41  (1849).  WILS.  Bry.  Brit.  105,  t.  20  (1855). 
SCHIMP.  Syn.  136  (1860),  et  2  ed.  147  (1876).  BERK.  Handb.  Br.  m.  267  (1863).  MILDE 
Bry.  siles.  139  (1869).  DE  NOT.  Epil.  661  (1869).  HOBK.  Syn.  Br.  m.  58  (1873). 

Leptotrichum  inclin.  MITT.  Muse.  Ind.  or.  10  (1859). 

Autoicous ;  in  small  irregular  olivaceous-green  tufts ;  stems  £ — i  in. 
high,  little  branched.  Leaves  densely  crowded,  narrower,  shorter, 
minutely  serrate  at  point ;  cells  longer ;  perich.  bracts  three,  longer. 
Capsule  pachydermous,  cernuous,  ovate,  olive  colored,  when  empty 
brown  with  a  glossy  red  mouth  ;  annulus  broad  ;  lid  conic,  attenuated. 
Teeth  of  per.  broader,  red,  cleft  into  2  or  3  legs  or  perforated,  jointed. 

Male  infl.  below  the  female,  bracts  i — 3,  ovate,  concave,  subulate. 
HAB. — Rocks  or  stony  ground  in  alpine  districts  ;  rare.  Fr.  6 — 7. 

Sands  of  Barrie,  Dundee  (Don)  \  \  Tent's  moor,  Fife  (Black  1853)  !  !  Aberdour,  Fife 
(Howie  1861) !  Ben  Lawers  and  Clova  (Fergusson  1868)  !  Connemara,  Ben  Bulben  and 
Ballycastle,  Ireland. 

Subf.  2.  DICRANELLE&.  Plants  small,  scarcely  branched; 
leaves  smooth,  lanceolate-subulate,  cells  parenchymatous,  without  basal 
angular  ones  of  a  different  form.  Peristome  of  16  teeth,  dicranoid,  the 
legs  filiform,  rough. 

5.     DICRANELLA  SCHIMP. 

(Coroll.  Bry.  Eur.  13  (1855).  ) 

Small  mosses  with  short  slightly  branched  stems ;  leaves  from  an 
oval  base,  abruptly  subulate,  channelled,  with  the  margin  plane  and 
nerve  broad,  flattened  and  indistinct  below.  Capsule  when  empty 
plicato-striate,  leptodermous,  erect  or  suberect,  regular  or  slightly 
oblique,  the  cells  of  the  exothecium  irregularly  oblong  and  curved,  with 
flexuose  walls.  Peristome  smaller,  thinner,  paler  and  scarcely  papillose. 
(Lindberg.)—Denv.  Diminutive  of  Dicranum. 


DICRANACE^;.]  105  {Dicranella. 

After  some  hesitation  I  have  adopted  Mr.  Mitten's  genus  Anisothecittm, 
usually  combined  with  Dicranella,  not  so  much  from  the  convenience  it  affords 
in  dividing  some  80  species,  as  from  the  belief  that  it  is  a  natural  one,  though 
difficult  to  define  in  words  ;  in  both  genera,  the  absence  of  inflated  cells  at 
the  basal  angles  of  the  leaf  will  at  once  separate  the  species  from  Dicmnum. 

CLAVIS   TO   THE  SPECIES. 

Seta  red. 

Leaves  divaricate,  flexuose.  crispa. 

Leaves  secund. 

Capsule  cernuous,  perich.  bracts  sheathing.  secunda. 

Capsule  suberect,  perich.  bracts  not  sheathing.  curvata. 

Seta  pale  straw  color. 

Capsule  oblong,  tapering  at  neck.  heteromalla. 

Capsule  gibbous,  strumose  at  neck.  cerviculata. 


i.    DICRANELLA  CRISPA  (Ehrh.)  ScUmp. 

Autoicous  or  dioicous ;  small,  slender,  leaves  from  a  semivaginant 
base,  subulate,  flexuoso-patent.  Capsule  erect,  oval,  striate  ;  lid  rostrate. 
(T.  XV,  D.) 

SYN. — Dicranwn  crispum  EHRH.  MSS.  HEDW.  Stirp.  cr.  ii,  91,  t.  33  (1788) ;  Sp.  muse.  133  (1801). 
SWARTZ  Muse.  suec.  37  (1798).  BRID.  Muse.  rec.  ii,  P.  I,  161  (1798),  Sp.  muse.  I,  199 
(1806),  Mant.  64  (1819),  Bry.  univ.  i,  451  (1826).  ROEHL.  Moosg.  Deutsch.  334  (1800), 
Deutsch.  Fl.  iii,  70  (1813).  'SM.  Eng.  Bot.  t.  1151  (1803),  Fl.  Brit,  iii,  1207  (1804). 
TURN.  Muse.  hib.  65  (1804).  P-  BEAUV.  Prodr.  53  (1805).  WEB.  MOHR  Bot.  Tasch. 
185  (1807).  SCHWAEGR.  Suppl.  I,  P.  I,  179  (1811).  WAHLENB.  Fl.  lapp.  341  (1812). 
HOOK.  TAYL.  Muse.  Br.  56,  t.  17  (1818).  GRAY  Nat.  arr.  Br.  pi.  i,  737  (1821).  HOOK. 
Fl.  Scot.  P.  2,  133  (1821) ;  Br.  Fl.  ii,  41  (1833).  HUEBEN.  Muse.  germ.  265  (1833). 
MACK.  Fl.  hib.  P.  2,  23  (1836).  RABENH.  Deutsch.  Kr.  Fl.  ii,  S.  3,  139  (1848).  BR.  SCH. 
Bry.  eur.  fasc.  37-40,  p.  20,  t.  8  (1847).  WILS.  Bry.  Brit.  70,  t.  17  (1855).  HUSN.  Mouss. 
nord-ouest  48  (1873).  HOBK.  Syn.  Br.  m.  41  (1873). 

Bryum  vaginale  DICKS.  PI.  cr.  Brit.  fasc.  Ill,  8  (1793).     WITH.  Bot.  arr.  Br.  veg.  3  ed.  iii, 

827  (1796).    HULL  Br.  Fl.  P.  2,  261  (1799). 
Angstrocmia  crispa  C.  MUELL.  Synops.  439  (1849). 
Dicranella  crispa  SCHIMP.  Coroll.  13  (1855),  Synops.  69  (1860),  et  2  ed.  70  (1876).     BERK. 

Handb.  Br.  m.  280  (1863).     MILDE  Bry.  siles.  57  (1869).      DE  NOT.  Epil.  Bri.  ital. 

641  (1869). 

Autoicous  or  dioicous ;  small,  slender,  laxly  caespitose,  glossy 
yellowish  ;  leaves  from  a  broad  semivaginant  base,  abruptly  subulate, 
flexuoso-patulous  or  subfalcate,  crisped  when  dry,  minutely  toothed  at 
apex ;  cells  elongated.  Capsule  rufous,  erect,  obovate  or  oval,  striate, 
sulcate  when  dry,  on  a  purple  seta ;  lid  with  a  subulate  beak,  crenulate 
at  base ;  annulus  very  narrow  ;  teeth  red,  cleft  to  middle.  Male  on  a 
proper  branch  or  on  a  distinct  plant ;  bracts  resembling  the  leaves  of 
stem. 
HAB. — Wet  sandy  ground  ;  not  common.  Fr.  8. 

N.  of  Ireland  (Miss  Hutchins  1808)  !  Belfast  (Temple ton).  Herringfleet  (Turner  1809)  ! 
Birmingham  (Mackay).  Near  Paisley  (D.  Don).  Kenmore  (Hooker  1829).  Forfar 
(Arnott  1825).  Gale  green,  Pilkington,  Orford  mount  and  Thelwall,  Warrington  (Wilson 
1847) '  '  Broken  brow,  Prestwich  and  Alderley  edge  (Hunt  1863)  I  1 


DICRANACE^E.]  io6  [Dicranella. 

The  adoption  of  the  genus  Anisothecium  enables  us  to  retain  the  specific 
name  crispum  for  this  plant,  which  otherwise  would  have  to  give  way  to 
Dickson's  and  be  termed  D.  vaginalis,  for  Dicranella  Schreberi  was  named 
crispum  seventeen  years  before  the  present  plant  was  known. 

2.  DICRANELLA  SECTJNDA  (Swartz.}  Lindb. 

Dioicous ;  slender,  leaves  lanceolate  at  base,  longly  subulate, 
channelled,  entire;  perich.  bracts  longly  subulate,  convolute  and 
sheathing.  Seta  red;  capsule  cernuous,  ovate,  gibbous;  lid  convexo- 
conic,  longly  subulate.  (T.  XV,  E.) 

SYN. — Dicranum  secundum  SWARTZ  in  Vet.  Ak.  Ha^dl.  1795,  p.  244. 

Dicramim  sttbulatum  HEDW.  Sp.  muse.  128,  t.  34,  f.  1-5  (1801).     SM.  Fl.  Brit,  iii,  1206  (1804) ; 

Eng.  Bot.  t.  1273.     TURN.  Muse.  Hib.  68  (1804).     BRID.  Sp.  muse.  I,  181  (1806),  Mant. 

59  (1819),  Bry.  univ.  i,  426  (1826).     SCHWAEGR.   Suppl.  I,  P.  I,  175  (1811).     ROEHL. 

Deutsch.  Fl.  iii,  72  (1813).     HOOK.  TAYL.  Muse.  Br.  59,  t.  18  (1818).     FUNCK  Moost.  28, 

t.  20  (1821).     GRAY  Nat.  arr.  Br.  pi.  i,  739  (1821).     HUEBEN.  Muse.  germ.  258  (1833). 

MACK.  Fl.  hib.  P.  2,  24  (1836).     DE  NOT.  Syll.  muse.  n.  293  (1838),  Epil.  Bry.  ital.  634 

(1869).     RABENH.  Deutsch.  Kr.  Fl.  ii,  S.  3,  141  (1848).     BR.   SCH.  Bry.  eur.  fasc.  37-40, 

p.  24,  t.  13  (1847).     WILS.  Bry.  brit.  70,  t.  18  (1855).     HARTM.  Skand.  Fl.     HOBK.  Syn. 

Br.  m.  43. 
Dicranum  sudcticum  SCHWAEGR.  Suppl.  I,  P.  I,  175,  t.  45.     BRID.  Mant.  61 ;    Bry.  univ.  i, 

432.     HUEBEN.  op.  cit.  260. 

Angstroemia  subulata  C.  MUELL.  Synops.  433  (1849). 
Dicranella  subulata  SCHIMP.  Coroll.  13  (1855),  Synops.  74  (1860),  et  2  ed.  75  (1876).     BERK. 

Handb.  Br.  m.  283  (1863).     MILDE  Bry.  Siles.  60  (1869). 

Dioicous ;  slender,  closely  crowded,  silky  yellowish-green,  ^ — i  in. 
high ;  leaves  from  a  lanceolate  subvaginant  base,  longly  subulate,  chan- 
nelled, falcato-secund,  entire  ;  nerve  thin  excurrent ;  lower  cells  toward 
margin  narrow  and  elongated,  upper  oblong;  perich.  bracts  convolute 
sheathing,  longly  subulate.  Capsule  on  a  purplish  seta,  subcernuous, 
ovate,  gibbous,  glossy  rufo-fuscous,  obsoletely  striate,  sulcate  when 
dry ;  annulus  revoluble,  of  two  rows  of  cells  ;  lid  convex-conic,  longly 
subulato-rostrate ;  perist.  pale  red,  teeth  incurved.  Male  plant  more 
slender,  innovating ;  bracts  ovato-subulate,  very  concave. 
HAB. — Wet  stony  ground  in  mountainous  districts.  Fr.  9. 

Ben  Lawers,  Mael  Girdy  and  Ben  More  (Wilson)  \  \  Aberfeldy  (Borrer).  Gale  green 
and  Pilkington  (Wilson  1844) !  Belfast  (Miss  Hutchins) !  Gibson  wood,  Heptonstall 
(Nowell  1860) !  !  Dunoon  (Hunt  1865) !  !  Craigailleach  (Braithwaite  1865) !  ! 

Resembling  the  much  commoner  D.  heteromalla,  but  easily  distinguished 
by  the  red  seta  and  smaller  firmer  capsule. 

3.  DICRANELLA  CURVATA  (Hedw.}  S  chimp. 
Dioicous;  slender,  resembling  D.  secunda ;  perich.  bracts  semivagi- 

nant,  falcate.     Capsule  erect,  oblong.     (T.  XV,  F.) 

SYN. — Dicranum  ciirvatum  HEDW.  Sp.  muse.  132,  t.  31,  f.  7-12  (1801).  BRID.  Sp.  muse.  I,  179 
(1806),  Mant.  58  (1819),  Bry.  univ.  i,  425  (1826).  SCHWAEGR.  Suppl.  I,  P.  I,  172  (1811). 
ROEHL.  Deutsch.  Fl.  iii,  72  (1813).  FUNCK  Moost.  29,  t.  19  (1821).  BR.  SCH.  Bry.  Eur. 
fasc.  37-40,  p.  24  t.  14  (1847).  HOBK.  Syn.  Br.  m.  44  (1873). 

Dicranum  subulatum  Var.  curvatnm  HUEBEN.  Bry.  Germ.  259  (1833).  RABENH.  Deutsch. 
Kr.  Fl.  ii,  S.  3,  141  (1848). 


DICRANACE^E.]  107  [Dicranella. 

Angstroemla  curvata  C.  MUELL.  Synops.  i,  433  (1849). 

Dicranella  curvata  SCHIMP.  Coroll.  13  (1855),  Synops.  75  (1860),  et  2  ed.  76  (1876).  MILDE 
Bry.  siles.  60  (1869). 

Dioicous ;  slender,  laxly  csespitose,  dull  yellowish-green ;  leaves 
from  a  shorter  semivaginant  ovate  base,  setaceous,  falcato-secund, 
channelled,  minutely  denticulate  at  apex;  cells  elongated,  very  narrow 
toward  margin  ;  perich.  bracts  thinner  and  with  longer  lamina.  Capsule 
on  a  pale  red  seta,  erect  or  a  little  inclined,  ovate-oblong,  equal,  pale 
brown,  annulate,  striate  ;  lid,  peristome  and  male  plant  as  in  D.  secunda. 
•  HAB. — Wet  sandstone  rocks  and  sides  of  hollow  ways  ;  rare.  Fr.  10 — i. 

Cwm  Gafr  near  Llanberis  (Wilson  1830) !  !  Dolgelly  (Wilson).  Hills  of  Dunoon, 
Greenock  (Drummond  Brit.  Mosses  115). 

Very  close  to  the  preceding  and  probably  often  confounded  with  it ; 
in  Europe  it  appears  to  be  confined  to  the  more  southern  portion  of  the 
central  part. 

4.    DICRANELLA  HETEROMALLA  (Dill.  L.}  Schimp. 
Dioicous ;    densely  caespitose,  silky  green  ;  leaves  arcuato-secund, 
lanceolate,   suddenly   setaceous.      Seta  yellowish.      Capsule   suberect, 
oblong,  slightly  curved  ;  lid  subulate.     (T.  XV,  G.) 

SYN. — Muscnstrichoides,foliis  capillaccis,capitulis  minoribus.  DOODY,  RAY  Syn.  stirp.  Brit.  App. 

243  (1690). 

Bryum  trichoides,  reclinatis  caulicnlis,  capitnlis  erectis  acutis  DILL,  in  Ray  Syn.  3  ed.  96, 
n.  23  (1724). 

Bryum  hetcromallum  DILL.  Hist.  muse.  375,  t.  47,  f.  37  (1741).  L.  Sp.  pi.  ii,  1118  (1753) ; 
Fl.  suec".  999.  HUDS.  Fl.  angl.  408  (1762).  OEDER  Fl.  dan.  t.  479  (1769).  NECK.  Meth. 
muse.  209  (1771).  WITH.  Bot.  arr.  Br.  veg.  ii,  674  (1776).  LIGHTF.  Fl.  scot,  ii,  726 
(1777).  RELHAN  Fl.  cant.  404  (1785).  HOFFM.  Deutsch.  Fl.  ii,  38  (1796).  HULL.  Br. 
Fl.  P.  2,  263  (1799).  ABBOT  Fl.  Bedf.  240  (1798). 

Hypnum  heterom.  WEISS  Cr.  Goett.  215  (1770).    WEBER  Spic.  Fl.  Goett  72  (1778). 

Fnscina  heterom.  SCHRANK  Bayers.  Fl.  ii,  454  (1789),  Pr.  Fl.  Salisb.  n.  829  (1792). 

Dicranum  heterom.  Hedw.  Stirp.  cr.  i,  68,  t.  26  (1787),  Sp.  muse.  128  (1801).  ROTH  Fl. 
germ,  i,  460  (1788),  iii.  160.  SIBTH.  Fl.  oxon.  282  (1794).  SWARTZ  Muse.  Suec.  37 
(1798).  BRID.  Muse.  rec.  ii.  P.  i,  128,  t.  3.  f.  18  (1798),  Sp.  muse.  I,  181  (1806), 
Mant.  69  (1819),  Bry.  univ.  i,  423  (1826).  ROEHL.  Moosg.  Deutsch.  319  (1800), 
Deutsch.  Fl.  iii,  72  (1813).  SM.  Fl.  Brit,  iii,  1204  (1804)  ;  Eng.  Bot.  t.  1272. 
TURN.  Muse.  hib.  61  (1804).  P.  BEAUV.  Prodr.  54  (1805).  SCHULTZ  Fl.  Starg. 
296  (1806).  WEB.  MOHR  Bot.  Tasch.  190  (1807).  SCHWAEGR.  Suppl.  I,  P.  I, 
173  (1811).  VOIT  Muse,  herbip.  42  (1812).  MART.  Fl.  cr.  erl.  98  (1817).  HOOK.  TAYL. 
Muse.  Brit.  59,  t.  18  (1818).  FUNCK  Moost.  28,  t.  19  (1821).  GRAY  Nat.  arr.  Br.  pi.  i, 
738  (1821).  HOOK.  Fl.  scot.  P.  2,  134  (1821) ;  Br.  Fl.  ii,  42  (1833).  HUEBEN.  Muse, 
germ.  257  (1833).  MACK.  Fl.  hib.  P.  2,  24  (1836).  DE  NOT.  Syll.  muse.  n.  292  (1838), 
Epil.  Bri.  ital.  634  (1869).  RABENH.  Deutsch.  Kr.  Fl.  ii,  S.  3,  141  (1848).  BR.  SCH. 
Bry.  eur.  fasc.  37-4°.  P-  25.  *•  J5  (l84?)-  WILS.  Bry.  Brit.  73,  t.  18  (1855).  HUSN. 
Mouss.  nord-ouest  51  (1873).  HOBK.  Syn.  Br.  m.  44  (1873). 

Angstroemia  heterom.  C.  MUELL.  i,  433  (1849). 

Dicranella  heterom.  SCHIMP.  Coroll.  13  (1855),  Synops.  75  (1860),  et  2  ed.  77  (1876).  BERK. 
Handb.  Br.  m.  283,  t.  23,  f.  8  (1863).  Milde.  Bry.  siles.  61  (1869). 

Dioicous ;  in  dense  silky  bright  green  or  yellow-green  patches. 
Stem  erect  £ — 2  in.  high,  slender,  with  rufous  radicles  at  base,  simple  or 
bipartite;  leaves  arcuato  or  hamato-secund,  from  a  broad  lanceolate 
base,  suddenly  setaceous,  channelled,  the  point  nearly  entire  or  minutely 


DICRANACE^.]  108  \Dicranella. 

denticulated  ;  cells  at  base  about  14  rows,  elongated  rectangular,  short 
and  elliptic  toward  margin  at  the  shoulder ;  perich.  bracts  with  longer 
sheaths.  Capsule  on  a  slender  pale  yellow  seta,  erect,  suberect  or 
inclining,  obovate  or  oblong,  a  little  curved,  glossy  rufous-brown, 
obsoletely  striate  ;  when  dry  and  empty,  elongated,  longitudinally  plicate, 
with  the  mouth  incurved ;  annulus  very  narrow,  adherent ;  lid  hemis- 
pherico-conoid  at  base,  longly  rostrate  ;  teeth  of  peristome  red,  cleft  to 
middle  into  two  or  sometimes  3  unequal  legs. 

Male  plant  shorter,  in  distinct   tufts  or  mixed   with  the  female, 
bracts  ovate  and  concave  at  base,  subulate. 
HAB. Damp   banks,   hollow   roads   and   sandstone  rocks;    very   common. 

Fr.  11—3. 

Var.  /3.  stricta  Schimp. 

Leaves  straight,  erecto-patent ;  seta  elongated,  flexuose. 

SYN. — Dicranum  hcterom.  Var  ft,  strictum  BR.  SCHIMP.  Bry.  eur.  1.  c. 
Angstroemia  heterom.  (3,  stricta  C.  MUELL.  Synops. 
Didymodon  chlorophyllosus  WEB.  MOHR. 

HAB.— Gortagoree,  Killarney  (Taylor  1840)!      Inverness,  Carse  of  Ardersier,  Inverness  (Croall 
1847)  1 

Var.  y.  interrupta  (Hedw.) 

Stem  taller,  more  branched ;  leaves  uniform,  or  interrupted,  patent  or 
falcato-secund. 

SYN. — Dicranum  intermptum  BRID.  Muse.  rec.  ii,  P.  I,  159  (1798),  Sp.  muse.  I,  179;  Mant.  65, 
Br.  univ.  i,  438.     HEDW.  Sp.  muse.  129,  t.  19  f.  8-12.     SM.  Fl.  Brit,  iii,  1205.     Eng-  Bot. 

t.  2508.      SCHWAEGR.  Op.  C.  172. 

Dicranum  caducum  BRID.  Bry.  univ.  i,  425. 

Dicranum  heterom.  ft.  interruptum  HUEBEN.  1.  c.  BR.  SCH.  Bry.  eur.  WILS.  Bry.  Brit. 
SCHIMP.  Synops.,  &c. 

HAB.— Scotland  (Winch  1803).     Ardingley,  Sussex  (Dames)  \     Marsden  moor  (West  1880)  !  ! 

Var.  8.  sericea  Schimp. 

In  small,  bright,  green,  silky  tufts.  Leaves  soft,  longer  and  narrower, 
spreading  or  subsecund. 

SYN.— Dicranum  trichodes  WILS.  MSS. 

Dicranodontium  sericeum  SCHIMP.  BRY.  EUR.  Suppl.  fasc.  1-2.    HUSN.  mouss.  nord-ouest  56. 
Dicranella  heteromalla  Var.  8  sericea  SCHIMP.  Synops.  2  ed.  78. 

HAB. — Sandstone  rocks,  almost  always  barren. 

Rattand  Clough  and  Green's  Clough,  Todmorden  (Now ell  1858)  !  Alderley  edge  (Hunt 
1863)  !  !  Astley  chapel  and  Rochdale  (Dr.  Wood)  \  Entwistle,  Bolton  (Whitehead 
1865) !  !  Colintraive,  Argyle  (Hunt  1866)  ! 

Wilson's  specimens  named  Dicr.  trichodes  are  closely  intermixed  with 
Blindia  acuta,  and  the  leaves  of  the  latter  had  no  doubt  been  submitted  to  the 
microscope,  as  they  have  enlarged  angular  cells  as  in  Dicranum. 


DICRANACE.E.]  109  [Dicranella. 

5.    DICRANELLA  CERVICULATA  (Hedw.)  Schimp. 
Dioicous ;  widely  casspitose  ;   leaves  lanceolate-subulate,  flexuose, 
patent,  with  a  flattened  nerve.     Capsule  on  a  yellow  seta,  cernuous, 
ovate,   gibbous,    slightly   strumose    at    neck ;    lid    subulate,    rostrate. 
(T.  XVI,  A.) 

SYN.— ZhVrciwttm  cervlculatum  HEDW.  Stirp.  cr.  iii,  89,  T.  37,  A  (1792),  Sp.  Muse.  149  (1801). 

SWARTZ   Muse.  suec.  36  (1798).     BRID.  Muse.  rec.  ii,  P.  I,  180  (1798),  Sp.  muse.  I,  221 

(1806),  Mant.  53  (1819).    ROEHL.  Moosg.  Deutsch.  379  (1800),  Deutsch.  Fl.  iii,  74  (1813). 

SM.  Fl.  Brit,  iii,  1220  (1804) ;  Eng.  Bot.  1661.     TURN.  Muse.  hib.  64  (1804).     P.  BEAUV. 

Prodr.  53  (1805).     SCHULTZ  Fl.  Starg.  302  (1806).     WEB.  MOHR  Bot.  Tasch.  193  (1807). 

SCHWAEGR.   Suppl.  I,  P.  I,  221  (i8n).     VOIT  Muse,  herbip.  48  (1812).     HOOK.  TAYL. 

Muse.   Brit.  53,  t.   16  (1818).     MART.  Fl.  cr.  Erl.   106  (1817).     FUNCK  Moost.  31,  t.  22 

(1821).     GRAY  Nat.  arr.  Br.  pi.  i,  734  (1821).     HOOK.  Fl.  Scot.  P.  2,   132  (1821),  Br. 

Fl.  ii,  37  (1833).     HUEBEN.  Muse.  germ.  226  (1833).      MACK.    Fl.  hib.  P.  2,  22  (1836). 

HARTM.  Skand.  Fl.    Fl.  Dan.  t.  2310,  f.  i.     RABENH.  Deutsch.  Kr.  Fl.  ii,  S.  3,  140  (1848). 

BR.  SCH.  Bry.  eur.  fasc.  37-40,  p.  22,  t.  9  (1847).     WILS.  Bry.  Brit.  72,  t.  16  (1855).     DE 

NOT.  Epil.  Briol.  ital.  634  (1869).     HUSN.   Mouss.  nord-ouest  50  (1873).     HOBK.  Syn. 

Br.  m.  42  (1873). 
Bryum  cerviculatum  DICKS.  PI.  cr.  fasc.  iii,  7  (1795).     WITH.  Bot.  arr.  Br.  veg.  3  ed.  iii, 

813  (1796).    ABBOT  Fl.  Bedf.  237  (1798).     HULL  Br.  Fl.  P.  2,  257  (1799). 
Bryum  uncinatum  DICKS.  Op.  c.  iv,  n,  t.  n,  f.  8  (1801). 

Dicranum  uncinatum  SM.  Fl.  Br.  1207.     Eng.  Bot.  t.  2261.     BRID.  Sp.  muse.  224. 
Dicranum  fla-uidum  WEB.  MOHR  Reis.  Schwed.  128  (1804).     SCHWAEG.  Suppl.  I,  P.  I,  192, 

t.  44  (1811).     Eng.  Bot.  t.  2261. 
Oncophorus  cervic.  BRID.  Bry.  un.  i,  391  (1826). 
Angstroemia  cervic.  C.  MUELL.  Synops.  i,  430  (1849). 

Dicranella  cervic.  SCHIMP.  Coroll.  13  (1855),  Synops.  72  (1860)  et  2  ed.  73  (1876).     BERK. 
Handb.  Br.  m.  282  (1863).     MILDE  Bry.  Siles.  58  (1869). 

Dioicous;  in  dense,  widely  extended,  yellowish  green  patches;  leaves 
semivaginant  at  base,  flexuoso-patent  or  secund,  lanceolate-subulate, 
concave,  entire,  glossy  ;  nerve  flattened,  dilated  at  base  ;  cells  elongated 
hexagono-rectangular.  Capsule  on  a  yellow  seta,  cernuous,  ovate, 
gibbous,  with  a  short  slightly  strumose  neck,  not  striate,  yellow-brown, 
when  old  fuscous ;  annulus  of  a  single  row  of  cells  ;  lid  long  as  capsule, 
conoid,  rostrate ;  teeth  of  peristome  dull  red. 

Male  plant  smaller,  bracts  ovate,  concave  at  base,  linear-subulate. 
HAB. — Wet  heaths  and  sides  of  ditches  ;  frequent.  Fr.  6 — 7. 

Var.  (3.  pusilla  (Hedw.)  Schimp. 

Stems  short,  simple,  leaves  smaller,  suberect ;  capsule  smaller,  less 
gibbous. 

SYN. — Dicranum  pusillum  HEDW.  Stirp.  ii,  80,  t.  29,  f.  13.  Sp.  muse.  139.  SCHRAD.  Sp.  Fl. 
germ.  91.  BRID.  op.  cit.  SWARTZ  op.  c.  38.  SCHWAEGR.  op.  c.  193.  SM.  Fl.  Br. 
1219;  Eng.  Bot.  t.  2491. 

Bryum  parvulum  DICKS.  PI.  cr.  fasc.  3,  p.  7.     HOFFM.  Deutsch.  Fl.  ii,  34.     WITH.  HULL. 
Dicran.  cerviculatum   Var.  pusillum  WEB.   MOHR   Tasch.    193.      HOOK.   TAYL.     WILS. 

HUEBEN. 

Oncophorus  pusillus  BRID.  Bry.  univ.  i,  390. 
Dicranella  cervic.  Var.  (3.  pusilla  SCHIMP.  1.  c. 
HAB. — In  similar  localities  as  the  type  and  sometimes  intermixed  with  it. 

This  species  is  readily  known  by  the  neat  roundish  capsules,  strumose 
at  base,  and  is  attached  to  bare  spots  where  peat  has  been  cut. 


DICRANACE^E.]  no  [Anisothecium. 

6.    ANISOTHECIUM  MITT. 

(Journ.  Lin.  Soc.  Dot.  xii,  39  (1869).  ) 

Mosses  resembling  Dicranella  in  habit ;  leaves  gradually  narrowed, 
or  from  a  sheathing  base  abruptly  subulate,  carinate,  with  the  margin 
plane  or  recurved,  and  nerve  narrow  and  well  defined  below.  Capsule 
always  smooth,  pachydermous,  curved  as  in  Hypnwn,  rarely  suberect 
or  less  oblique,  the  cells  of  the  exothecium  regularly  rectangular- 
quadrate,  with  non-flexuose  walls.  Peristome  larger,  thicker,  deep 
purple,  more  papillose.  (Lindberg). — Deriv.  avisos  unequal,  £7?*??  a  capsule. 

CLAVIS  TO  THE  SPECIES. 

Leaves  not  sheathing,  erecto-patent. 

Capsule  cernuous,  curved.  rubrutn. 

Capsule  suberect,  ovate.  rufescens. 

Leaves  from  a  sheathing  base,  squarrose. 
Leaves  abruptly  subulate. 

Neck  of  capsule  substrumose,  apex  of  leaf  entire.  Grevillci. 

Neck  of  capsule  equal,  apex  of  leaf  serrulate.  crispum. 

Leaves  broad,  obtuse.  squarrosum. 


i.    ANISOTHECIUM  RUBRUM  (Huds.)  Lindb. 

Dioicous ;  small,  simple  ;  leaves  erecto-patent,  lanceolate-subulate, 
nerve  slightly  excurrent.  Capsule  cernuous,  ovate,  subincurved,  rufous ; 
seta  red ;  lid  large,  short-beaked.  (T.  XVI,  B.) 

SYN. — Bryum  trichoides,  obscure  virescens,  capitulis  cermtis.  DILL.  Cat.  Giss.  226(1719),  et  in 

RAY  Synops.  3  ed.  100  (1724). 
Bryum  trichoides,  capsulis  rubris  cernuis.   DILL.   Hist.  muse.  390,  T.  50,  f.  59  (1741) :   et 

herbar. 
Bryum  rubrum  HUDS.  Fl.  Angl.  413  (1762).    L.  Mant.  alt.  309  (1771).    GMEL.  Syst.  nat. 

ii,  1331  (1791).     LAICH.  PI.  Eur.  473  (1794). 
Bryum  simplex  L.  Sp.  pi.  2  ed.  ii,  1587  (1763) ;  Syst.  nat.  ii,  702.     NECK.  Meth.  muse.  202 

(1771).     HUDS.  op.  c.  2  ed.  486  (1778).     EHRH.   Hann.  mag.  1780,  p.  236.      ROTH  Fl. 

germ,  i,  474  (1788).     HOFFM.  Deutsch.  Fl.  ii,  35  (1796). 

Dicranum  simplex  HEDW.  Fund.  P.  2,  92  (1782).     SIBTH.  Fl.  Oxon.  282  (1794). 
Fuscina  simplex  SCHRANK  Baiers.  Fl.  ii,  453  (1789),  Fl.  Salisb.  n.  828. 
Dicranum  varium  HEDW.  St.  cr.  ii,  93,  t.  34  (1789),  Sp.  muse.  133  (1801).     ROTH  Fl.  Germ. 

iii,  370  (1795).     BRID.  Muse.  rec.  ii,   P.  I,  169  (1798),  Sp.  muse.  I,  187  (1806),  Mant.  61 

(1819),  Bry  univ.  i,  435  (1826).     SWARTZ  Muse.  suec.  57  (1798).     ROEHL.  Moosg.  Deutsch. 

370  (1800),  Deutsch.  Fl.  iii,  71  (1813).     SM.  Fl.  Brit,  iii,  1209  (1804),  Eng.  Bot.  t.  1215. 

TURN.  Muse.  hib.  65  (1804).     P.  BEAUV.   Prodr.  55   (1805).     SCHULTZ  Fl.  Starg.  300 

(1806).    WEB.  MOHR  Bot.  Tasch.  286  (1807).     SCHWAEGR.  Suppl.  I,  P.  I,   174  (1811). 

WAHLENB.  Fl.  lapp.  341  (1812),  Fl.  carp.  346.      VOIT  Muse.  herb.  47  (1812).     MART.  Fl. 

cr.  Erl.  99  (1817).     HOOK.  TAYL.  Muse.  Brit.  58,  t.  17  (1818)  ;    FUNCK  Moost.  28,  t.  20 

(1821).     GRAY  Nat.  arr.  Br.  pi.  i,  738  (1821).     HOOK.  Fl.  scot.  P.  2,  134  (1821) ;  Br.  Fl. 

ii,  42  (1833).     HUEBEN.  Muse.  germ.  260(1833).     MACK.  Fl.  hib.  P.  2,  24  (1836).     HARTM. 

Skand.  Fl.     DE  NOT.   Syll.  muse.  n.  295  (1838).     Fl.  Dan.  t.  2310,  f.  2.     RABENH. 

Deutsch.  Kr.  Fl.  ii,  S.  3,  140  (1848).     BR.  SCH.  Bry.  eur.  fasc.  37-40,  p.  20  t.  10  (1847). 

WILS.  Bry.  Brit.  70,  t.  17  (1855).     HUSN.  Mouss.  nord-ouest  50  (1873).     HOBK.  Syn.  Br. 

m.  42  (1873). 


DICRANACE^E.]  in  [Anisothecium. 

Dicranum  rigidulum  SWARTZ  op.  c.  38  et  89,  t.  3,  f.  7.     HEDW.  Sp.  muse.  134,  t.  32,  f.  8-12. 

SM.  Fl.  Br.  1211  :  Eng.  Bot.  t.  1439.     TURN.  Muse.  hib.  62.     BRID.  Sp.  muse.  I,  186  ; 

Mant.  61  ;  Bry.  univ.  i,  433.     WEB.  MOHR  Bot.  Tasch.  188.     SCHWAEGR.  Suppl.  I,  P.  I, 

174.     SCHULTZ  Suppl.  Fl.  Starg.  72. 
Dicranum  varium  a.  viride  HOOK.  TAYL.  Muse.  Brit. 
Angstrocmia  varia  C.  MUELL.  Synops.  i,  435  (1849). 

Dicranella  varia  SCHIMP.  Coroll.  13  (1855),  Synops.  72  (1860),  et  2  ed.  74  (1876).  BERK. 
Handb.'  Br.  m.  282  (1863).  MILDE  Bry.  Siles.  59  (1869).  DE  NOT.  Epil.  Bri.  ital.  639 
(1869). 

Anisothecium  varium  MITT.  op.  c.  40. 

Anisothecium  rubnim  LINDB.  Utk.  till  en  nat.  grupp.  Eur.  bladm.  med  topps.  frukt  33  (1878). 

Dioicous ;  short,  yellowish  green,  densely  gregarious,  or  csespitose, 
dividing  at  base.  Leaves  erecto-patent,  rarely  subsecund,  oblong  at 
base,  not  sheathing,  gradually  lanceolate-subulate,  carinate,  entire  or 
obsoletely  denticulate  at  apex,  opake,  nerve  semiterete,  slightly  excur- 
rent ;  cells  thin,  elongated ;  perich.  bracts  semivaginant.  Seta  deep 
red.  Capsule  cernuous,  ovate,  subincurved,  reddish-brown,  exannulate, 
contracted  below  the  mouth  after  the  lid  falls  ;  lid  large,  short-beaked  ; 
peristome  large,  deep  purple,  connivent.  Male  plant  smaller,  bracts 
ovate-subulate. 

HAB. — Damp  clay  fields,  banks  of  ditches,  sometimes  on  rocks ;    common. 
Fr.  10 — 2. 

Var.  ft.  tenuifolium  (Bruch). 

Leaves  more  distant,  thinner,  narrower,  obsoletely  nerved,  the  points 
less  elongated,  the  cells  laxer.  Capsule  nearly  symmetric,  paler  and  thinner. 

SYK. — SCHIMP.  Bry.  eur.  et  Synops.     WILS.  Br.  Brit. 
Dicranum  subulatum  SM.  Eng.  Bot.  t.  1273. 
Dicranum  tenuifolium  BRUCH.  in  F.  MUELL.  Muse.  Sardois. 
Dicranella  fallax  WILS.  MSS. 

HAB.— Anglesea  and  Bangor  ferry  (Wilson) !  !  Cotterall  Clough  (Wilson).  By  the  Esk, 
Yorks.  (Spruce  1842) !  Parkgate,  Cheshire  (Miss  Jelly)  \  !  Henfield  (Borrer)  ! 
Milnthorpe  (Barnes) !  Banchory  (Sim). 

Usually  taller  than  the  ordinary  form  with  a  longer  seta  and  more 
drooping  capsule,  but  not  affording  any  permanent  characters  for  specific 
distinction ;  it  is  most  frequent  in  Southern  Europe. 

Var.  y.  tenellum  ScUmp. 

Stem    slender,   nearly  simple,  leaves    falcato-secund,   narrower,   more 
laxly  areolate,  margin  remotely  toothed. 
SYN. — SCHIMP.  Bry.  eur.  et  Synops.    WILS.  Bry.  Brit. 
HAB. — In  drier  grassy  places,  with  the  normal  form. 

Var.  8.  callistomum  (Dicks.} 

Stem  branched  ;  leaves  patent.  Capsule  on  a  short  seta,  erect,  minute, 
truncate-obovate ;  lid  broadly  conical,  almost  as  large  as  capsule. 

SYN. — Bryum  callistomum  DICKS.  Cr.  Brit.  fasc.  3,  p.  5,  t.  7,  f.  10  (1795).  HULL  Br.  Fl.  P.  2,  258. 
WITH.  3  ed.  iii,  818.  BRID.  Muse.  rec.  ii,  P.  Ill,  57. 


DICRANACE^E.]  ii2  [Anisothecium. 

Dicranum  callistomum  SM.  Fl.  Brit,  iii,  1211.  TURN.  Muse.  hib.  63.  BRID.  Sp.  muse. 
I,  187. 

Dlcran.  rigidulum  (3.  callistomum  BRID.  Mant.  61 ;  Bry.  univ.  i,  434. 
Dicranella  varia  var.  £.  callistoma  SCHIMP.  Syn.  73. 

HAS. — On  rocks  in  subalpine  districts. 

Scotland  (Dickson).    Anglesea  (Dames).     Near  Derry  and  Colin  Glen  (Scott  1802). 

This  species  is  very  variable  in  size  and  tint,  and  several  forms  may  be 
found  growing  together  in  one  tuft. 

2.    ANISOTHECIUM  EUFESCENS  (Dicks.)  Lindb. 

Dioicous ;  simple,  rufescent ;  leaves  secund,  lineal-lanceolate, 
remotely  toothed,  laxly  areolate ;  nerve  strong,  vanishing  at  apex. 
Capsule  erect,  ovate  ;  lid  widely  conic,  acutely  pointed.  (T.  XVI,  C.) 

SYN. — Bryum  rufescens  DICKS.  PI.  crypt,  fasc.  3,  p.  6,  t.  8,  f.  i  (1795).  WITH.  Bot.  arr.  Br.  veg. 
3  ed.  iii,  818  (1796).  HULL  Br.  Fl.  P.  2,  258  (1799).  BRID.  Muse.  rec.  ii,  P.  Ill, 
55  (1803). 

Dicranum  rufescens  SM.  Eng.  Bot.  t.  1216  (1804),  Fl.  Brit,  iii,  1210  (1804).  TURN.  muse. 
hib.  66  (1804).  BRID.  Sp.  muse.  I,  188  (1806),  Bry.  univ.  i,  437  (1826).  SWARTZ  in 
SCHRAD.  Bot.  Journ.  iv.  173  (1801).  MART.  Fl.  cr.  Erl.  85  (1817).  HUEBEN.  Muse, 
germ.  264  (1833).  DE  NOT.  Syllab.  n.  296  (1838).  RABENH.  Deutsch.  Kr.  Fl.  ii,  S.  3, 
140  (1848).  BR.  SCH.  Bry.  Eur.  fasc.  37-40,  p.  22,  t.  12  (1847).  WILS.  Bry.  Brit.  71, 
t.  12  (1855).  HOBK.  Syn.  Br.  m.  43  (1873).  HUSN.  Mouss.  nord-ouest  50  (1873). 

Dicranum  carneum  BLANDOW  in  STURM  Deutsch.  Fl.  2,  n.  10. 

Dicranum  varium  (3.  rufescens.  ROEHL.  Deutsch.  Fl.  iii,  71  (1813).  HOOK.  TAYL.  Muse. 
Br.  58,  t.  17,  fig.  med.  (1818).  BRID.  Mant.  62  (1819).  GRAY  Nat.  arr.  Br.  pi.  i,  738 
(1821).  HOOK.  Fl.  Scot.  P.  2,  134  (1821) ;  Br.  Fl.  ii,  42  (1833). 

Angstroemia  rufcsc.  C.  MUELL.  Synops.  i,  436  (1849). 

Dicranella  rufesc.   SCHIMP.   Coroll.  13  (1855),  Synops.  74  (1860),  et  2  ed.  75  (1876).  BERK. 

Handb.   Br.   m.   283    (1863).     MILDE   Bry.  Siles.  60   (1869).     DE  NOT.  Epil.  Bri.  ital. 

639  (1869). 

Dioicous;  rufescent,  densely  gregarious  or  csespitulose,  slender, 
simple,  erect ;  leaves  less  crowded,  subfalcato-secund,  lineal-lanceolate, 
remotely  toothed ;  nerve  strong,  subterete  at  base,  flattened  above, 
vanishing  in  apex  ;  cells  lax,  elongated,  rectangular.  Seta  red.  Capsule 
erect  or  inclined,  very  small,  ovato-elliptic,  rufous  ;  annulus  none ;  lid 
broadly  conic,  acutely  apiculate.  Peristome  large,  red.  Male  plant 
slender,  inflor.  terminal,  antheridia  numerous,  orange,  bracts  ovate, 
subulate. 

HAB. — Wet  clay  banks  and  stony  ground  ;  not  rare.  Fr.  9—11. 

Scotland  (Dickson).  Killarney,  Lough  Bray  and  Kelly's  Glen,  Ireland.  Henfield  and 
Blackdown,  Sussex  (Borrer  1826) !  Hurstpierpoint  (Mitten  1847) '  Blackburn,  Prestwich 
Clough  and  Ashley  (Hunt) !  !  Cockmill  Wood,  Whitby  (Braithwaite  1850) !  !  Quirang, 
Skye  (Hunt)  !  Banchory  (Sim).  Hampstead  canal  bank,  Stafford  (Bagnall  1870). 

Readily  known  from  A .  rubrum  by  turning  pale  vinous  red  in  drying  ; 
the  male  infl.  is  so  conspicuous,  that  when  growing  alone  it  has  the  aspect 
of  a  Phascum  in  fruit. 


DICRANACE^E.]  113  [Anisothecium. 

3.     ANISOTHECIUM  GREVILLEI  (Br.  Sch.}  Lindb. 

Dioicous;  leaves  sheathing,  suddenly  subulate,  flexuoso-patulous, 
glossy,  entire;  perich.  longly  sheathing.  Capsule  cernuous,  obovate, 
subgibbous,  with  a  tumid  neck  ;  lid  subulate  rostrate.  (T.  XVI,  D.) 

^N.— Dicranum  Schrcberlanum  GREV.  Scott.  Cr.  Fl.  t.   116   (1824).     HOOK.  TAYL.  Muse.  Brit. 

2  ed.  95,  t.  Suppl.  3.  (1827).     HOOK.  Br.  Fl.  ii,  38  (1833). 
Dicranum  Schrcberi  var.  Grevilleanum  BRID.  Bry.  univ.  i,  450  (1826). 

Dlcranum  Grevilleanum  BR.  SCH.   Bry.  eur.  fasc.  37-40,  p.  19,  t.  7  (1847).     WILS.  Bry. 

Brit.  69,  t.  33  (1855).     HUSN.  Mouss.  nord-ouest  49  (1873). 
AngstroemiaGrcvilleanaC.  MUELL.  Synops.  i,  439  (1849). 
Dlcranella  Grevilleana  SCHIMP.   Coroll.   13    (1855),   Synops.  70  (1860),  et  2  ed.  71  (1876). 

BERK.   Handb.   Br.  m.  281   (1863).     DE  NOT.  Epil.  Bri.  ital.  640  (1869).     HOBK.  Syn. 

Br.  m.  41  (1873). 
Anisothecium  Grevillei  LINDB.  op.  c.  26   (1878). 

Dioicous  or  autoicous  ?  densely  casspitulose,  glossy  yellowish  green  ; 
leaves  from  a  wide  sheathing  base,  suddenly  narrowed  into  a  flexuose- 
patulous  subula,  margin  subundulate,  quite  entire  or  with  2  or  3 
irregular  serratures  at  apex;  basal  cells  elongated,  upper  oblong; 
perich.  bracts  more  sheathing.  Capsule  cernuous,  on  a  purple  seta, 
obovate  or  oval,  subgibbous,  faintly  striated,  solid,  exannulate,  with  a 
short  tumid  or  obsoletely  strumose  neck ;  lid  with  a  subulate  beak. 
Male  infl.  gemmiform,  terminal ;  bracts  convolute,  lanceolate-subulate. 
HAB. — Damp  clay  soil  in  mountain  districts ;  rare.  Fr.  9. 

Old  road  in  Gen  Tilt,  Blair  Atholl  (Hooker  and  Gremlle  1823)  !  !    Glenshee  (Fergnsson). 

Both  Wilson  and  Schimper  describe  this  moss  as  monoicous,  but  De 
Notaris  (Epilogo  p.  641)  as  dioicous,  observing  that  he  could  detect  no  male 
infl.  on  fruiting  plants,  and  this  is  also  my  experience  both  with  original 
specimens  from  Glen  Tilt,  and  Finland  ones  from  Lindberg.  The  latter  also 
have  the  lid  conical  and  only  slightly  rostellate,  so  that  it  is  evident  this  part 
varies  considerably,  as  it  is  usually  subulate  and  decurved. 

4.    ANISOTHECIUM   CRISPUM   (Schreb.)  Lindb. 

Dioicous ;  leaves  from  a  dilated  base,  narrowly  lanceolate,  irregularly 
denticulate  at  point.  Capsule  ovate-oblong,  cernuous,  not  striate  ;  lid 
large,  rostrate.  (T.  XVI,  E.) 

SYN. — Dicranum  crispum  SCHREB.  Spic.  Fl.  Lips.  79  (1771).     THUNB.  Prodr.  Fl.  cap.  ii,  174. 

Dicranum  Schreberi  SWARTZ  Muse.  Suec.  37,  t.  2,  f.  6  (1798).  HEDW.  Sp.  muse.  144,  t.  33, 
f.  6.10  (1801).  P.  BEAUV.  Prodr.  55  (1805).  BRID.  Sp.  muse,  i,  198  (1806),  Mant.  64 
(1819),  Bry.  Univ.  i,  449  (1826).  SCHULTZ  Fl.  Starg.  199  (1806).  WEB.  MOHR  184 
(1807).  SCHWAEGR.  Suppl.  I,  P.  I,  179  (1811).  VOIT  Muse,  herbip.  45  (1812). 
WAHLENB.  Fl.  lapp.  340  (1812),  Fl.  carp.  345  (1814).  ROEHL.  Deutsch.  Fl.  iii,  74 
(1813).  MART.  Fl.  cr.  Erl.  103  (1817).  HUEBEN.  Muse.  germ.  262  (1833).  HARTM. 
Skand.  Fl.  RABENH.  Deutsch.  Kr.  Fl.  ii,  S.  3,  139  (1848).  BR.  SCH.  Bry.  eur.  fasc. 
37-40,  p.  18,  t.  6  (1847).  WILS.  Bry.  Brit.  69  (1855).  HUSN.  Mouss.  nord-ouest 
49  (1873). 

Dicranum  recognitum  ROEHL.  Moosg.  Deutsch.  377  (1800). 

Angstroemia  Schreberi  C.  MUELL.  Synops.  i,  438  (1849). 


DICRANACEJE.]  114  [Anisothccium. 

Dicranclla  Schreberi   SCHIMP.   Coroll.    13    (1855),  Synops.  70   (1860),  et  2  ed.  72  (1876). 

BERK.  Handb.  Br.  m.  281  (1863).     MILDE  Bry.  siles.  57  (1869).     Hobk.  Syn.  Br.  m. 

42  (1873). 
Anisothecium  crispum  LINDB.  op.  c.  26  (1878). 

Dioicous  ;  gregarious  and  caespitulose,  | — i  in.  high ;  yellowish  green. 
Leaves  squarrose,  from  a  dilated  semivaginant  base,  narrowly  lanceolate, 
carinate,  irregularly  denticulate  toward  apex,  not  glossy ;  areolation 
firm,  narrow,  elongated ;  perich.  bracts  more  shortly  sheathing.  Capsule 
on  a  purple  seta,  cernuous,  oblong  with  scarce  any  neck,  not  striate, 
exannulate ;  lid  conic,  obliquely  rostrate,  large,  purple ;  peristome 
purple.  Male  plant  small,  simple. 

HAB. — Damp   clay  soil,   sides  of  ditches  and  bare  places  in    fields ;    not 
common.  Fr.  9. 

Mangerton  (Miss  Hutchins).  S.  of  Ireland  (Mackay).  Loch  More,  Ross  (Hooker  1828)  ! 
Glen  Lena,  Argyle  (Hooker  1837)  !  Cauldron  Snout,  Teesdale  (Black  1854)  !  Ramsden 
Clough,  Todmorden  (Nowell)  \  \  Banks  of  R.  Bollin  at  Bowdon  and  Ashley  (Hunt 
1864)  !  !  Lancaster  (Hunt  1865) !  Rochdale  (Holt  1878)  !  !  Killin  and  Stirling  (Holt 
1880) !  ! 

Var.  /?.  elatum  (Schimp.) 

Densely  caespitose ;  much  taller ;  leaves  broader,  more  laxly  areolate, 
more  distinctly  serrated. 

SYN. — Dlcranella  Schreberi  Var.  ft.  data  SCHIMP.  Synops.  2  ed.  72. 
Dicranella  lenta  WILS.  MSS. 

HAB. — Stirrup  wood,  Mottram  (Nowell  1860)  !  Walton  Swamp,  Warrington  (Wilson) !  !  Broken 
brow,  Prestwich  (Hunt  1863)  !  !  By  R.  Bollin  at  Ashley  (Hunt) !  Near  Melrose 
(Jerdon)  \  The  Dran,  Rochdale  (Holt  1880) !  ! 

The  variety  exactly  resembles  in  appearance  a  poor  starved  form  of  the 
next  species,  but  is  readily  separated  by  the  structure  of  the  leaf  point ;  fertile 
specimens  are  rare  and  approach  nearer  the  typical  form. 

5.     ANISOTHECIUM  SQUARROSUM  (Starke)  Lindb. 
Dioicous  ;  tall,  robust.     Leaves  squarrose,  broadly  oblong  at  base, 
oblongo-lanceolate,  obtuse  and  eroso-crenulate  at  apex ;  nerve  narrow, 
vanishing  at  apex.     Capsule  cernuous,  ovate,  with   a  short   neck,  lid 
conic,  obtuse.     (T.  XVI,  F.) 

SYN. — Muscus  trichoides  palustris,  capsulis  erectis,  foliis  rcflexis  DOODY.  RAY  Syn.  St.  Brit.  2  ed. 
app.  338  (1696). 

Bryum  erectis  capitulis  brcvibus,  foliis  rcflexh  DILL,  in  RAY  Syn.  3  ed.  95,  n.  18  (1724)  ; 

Hist.  muse.  365,  T.  46,  f.  24  (1741). 
Bryum  pellucidum  (3.  L.  Sp.  pi.  ii,  1118  (1753)- 
Bryum  palustre  DICKS.  PI.  crypt,  fasc.  iv,  n  (1801). 
Dicranum  squarrosum  STARKE  in.  litt.     SCHRAD.  Journ.  Bot.  v,  68  (1802).     SM.  Fl.  Brit. 

iii,  1215  (1804) ;  Eng.  Bot.  t.  2004.     TURN.  Muse.  hib.  69  (1804)     BRID.  Sp.  muse,  i,  194 

(1806) ;  Mant.  55  (1819).     WEB.  MOHR  Bot.  Tasch.  183  (1807).     SCHWAEGR.  Suppl.  I,  P. 

I,  182,  t.  47  (1811).     VOIT  Muse,  herbip.  49  (1812).     ROEHL.  Deutsch.  Fl.  iii,  73  (1813). 

HOOK.  TAYL.  Muse.  Brit.  55,  t.  17  (1818).     FUNCK  Moost.  30,  t.  21  (1821).     GRAY  Nat. 

arr.  Br.  pi.  i,  736   (1821).     HOOK.  Fl.  Scot.  P.  2,    133    (1821.) ;    Br.  Fl.  ii,  40  (1833). 

HUEBEN.  Muse.  germ.    271  (1833).     MACK.  Fl.  hib.  P.  2,  23  (1836).     RABENH.  Deutsch. 

Kr.  Fl.  ii,  S.  3,  138  (1848).     BR.  SCH.  Bry.  eur.  fasc.  37-40,  p.  17,  t.  5  (1847).    WILS.  Bry. 

Brit.  68,  t.  17  (1855).     HUSN.  Mouss.  nord-ouest  49  (1873).     HOBK.  Syn.  Br.  m.  42  (1873). 


DICRANACE.E.]  115  [Seligeria. 

Oncophorus  squarrosus  BRID.  Bry.  univ.  i,  404  (1826). 
Diobelon  squarrosum  HAMPE  in  litt. 

Angstroemia  squarrosa  C.  MUELL.  Synops.  i,  438  (1849). 
Dichodontium  squarrosum  SCHIMP.  Coroll.  13  (1855). 

Dicranella  squarrosa  SCHIMP.  Synops.  71  (1860),  et  2  ed.  72  (1876).     BERK.  Handb.  Br.  m. 
281  (1863).     MILDE  Bry.  siles.  58  (1869).     DE  NOT.  Epil.  Bri.  ital.  642  (1869). 

Dioicous  ;  caespitose,  i  —  4  in.  high,  soft,  bright  green  or  yellow- 
green,  fuscous  at  base  ;  stem  erect,  sparingly  branched.  Leaves  lax, 
flaccid,  squarrose,  octofarious,  from  an  erect  broadly  oblong,  sheathing 
base,  divaricate,  reflexed,  oblongo-lanceolate,  muticous  or  pointed,  the 
margin  wavy,  the  apex  eroso-crenulate,  nerve  narrow,  vanishing  at 
apex,  smooth,  rather  glossy  ;  areolation  lax,  hexagono-rectangular  above, 
elongated  at  base,  with  a  sinuous  primordial  utricle  ;  perich.  bracts 
resembling  the  leaves.  Capsule  on  a  stout  purple  seta,  cernuous,  ovate 
with  a  short  neck,  subturgid,  solid,  fuscous  brown;  annulus  none;  lid 
conic,  obtuse  ;  peristome  large  purple,  2  —  3-fid  to  the  middle. 

Male  plants  similar,  the  infl.  capituliform,  bracts  concave,  broadly 
lanceolate,  paraphyses  numerous. 

HAB.  —  Stony  ground  and  by  streamlets  on  moors  ;  common,  not  frequent  in 
fruit.  Fr.  8—9. 


In  fr.  Loch  Broom  (Borrcr)  \  Staley  brushes  (Hobson).  Ramsden  Clough  (Now  ell  1864)  !  ! 
Ogden  Clough  (Scholefield)  !  Quirang,  Skye  (Hunt  1863)  !  Rattand  Clough,  Todmorden 
(Hunt  1869)  !  !  Hill  bell,  Westmoreland  (Stabler  1868)  !  Den  of  Lawers  (Braithwaitc 


1865)  !  !    Saltersgate  beck,  Yorks.  (Rev.  J.  F.  Crouch)  !  !  Wheeldale,  Yorks.  (Braithwaitc)  !  ! 
Cautley  spout,  Yorks.  (West  1879)  !  ! 

The  lively  green  tufts  of  this  moss  in  the  barren  state,  are  a  conspicuous 
ornament  to  our  moorlands,  and  much  more  robust  than  the  fertile  plant, 
which  is  attached  to  gravelly  clay  where  water  stagnates.  In  habit  it  differs 
considerably  from  the  species  which  precede  it. 

Subf.  3.  SELIGERIE&.  Plants  small;  scarcely  branched;  leaves 
smooth,  narrowly  lanceolate-subulate,  minutely  areolate  above,  laxer  below, 
without  distinct  basal  angular  cells,  or  sometimes  with  them.  Peristome  of 
1  6  lanceolate  flat  smooth  teeth,  entire,  sometimes  cleft  or  perforated,  or 
none. 

7.     SELIGERIA.     BR.  SCHIMP. 

Bry.  Eur.  Fasc.  33—36  (1846). 

Plants  very  small,  gregarious  or  caespitant,  growing  on  rocks. 
Leaves  in  many  rows,  lanceolate  or  subulate,  nerved,  cells  minute  and 
quadrate  above,  large  and  rectangular  at  base,  sometimes  with  colored 
angular  cells  as  in  Dicranum.  Calyptra  cucullate,  capsule  ovate  or 
globose  with  a  distinct  neck,  often  turbinate  when  empty,  peristome 
of  16  lanceolate  flat  smooth  rigid  teeth,  rarely  cleft,  sometimes  none  ; 
spores  smooth.  —  Deriv.  After  the  Silesian  pastor  Seliger. 


DICRANAC^.]  116  [Seligeria. 

The  pretty  little  species  which  constitute  the  genus  Seligeria  have  a 
great  resemblance  to  each  other  and  require  care  to  discriminate.  Besides 
our  native  species  there  are  also  found  in  Europe  5.  crassinervis  LINDB. — 
diversifolia  LINDB.  and  subimmersa  LINDB.  from  Scandinavia,  with  5.  polaris 
BERGGR.  from  Spitzbergen  ;  the  two  latter  have  colored  angular  cells  as  in 
Dicranum,  and  form  the  transition  to  the  genus  Blindia. 

CLAVIS   TO   THE   SPECIES. 

Peristome  none.  Donii. 

Peristome  present. 

Seta  straight  when  moist. 
Capsule  turbinate. 

Leaves  ovato-lanceolate,  rather  obtuse.  calcarca. 

Leaves  lanceolate,  subulate. 

Perich.  bracts  reaching  to  capsule.  acutifolia. 

Perich.  bracts  not  reaching  capsule. 

Leaves  shortly  lanceolate,  in  3  ranks.  trifarla. 

Leaves  longer,  setaceous  in  upper  half.  pusilla. 

Capsule  narrowly  pyriform.  paucifolia. 

Seta  arcuate  when  moist.  sctacea. 


i.     SELIGERIA  DONII  (Sm.)  C.  Muell. 

Autoicous ;  leaves  lanceolate,  subulate,  minutely  serrate  at  base. 
Capsule  erect,  truncate,  ovate,  gymnostomous ;  lid  broadly  conic. 
(T.  XVI,  G.) 

SvN.—Gymnostomum  Donianum  SM.  Eng.  Bot.  t.  1582  (1806).     HOOK  TAYL.  Muse.   Br.  13,  t.  7 

(1818).     GRAY  Nat.  arr.  Br.  pi.  i,  716  (1821).     HOOK.  Fl.  scot.   P.  2,  123   (1821)  ;  Br.  Fl. 

ii,  10  (1833).     BRID.  Bry.  univ.  i,  66  (1826).     SCHWAEGR.  Suppl.   Ill,   P.  I,  6,  t.  207 

(1827). 
Anodus  Donianus  BR.  SCHIMP.  Bry.  eur.  fasc.  33-6,  p.  3,  t.  i  (1846).     RABENH.    Deutsch. 

Kr.  fl.  ii,  S.  3,  131  (1848).     WILS.  Bry.  br.  56,  t.  7  (1855).     SCHIMP.  Synops.  112   (1860) ; 

et  2  ed.  124  (1876).     BERK.  Handb.  br.  m.  287  (1863).     HOBK.  Syn.  br.  m.  38  (1873). 
Seligeria  Doniana  C.  MUELL.  Syn.  i,  420  (1849).     HARTM.  Skand.    fl.  5    ed.  397  (1849). 

SPRUCE  in  Ann.  Mag.  Nat.  hist.  2  ser.  iii,   479  (1849).    JURATZ.  Laubm.   Oester.-Ung. 

68  (1882). 
Seligeria  Donii  LINDB.  in  Oefver.   K.  Vet.   akad.  Foerhand.  1864,   p.    187.     MILDE    Bry. 

Siles.  86  (1869).     DE  NOT.  Epil.  Bri.  ital.  656  (1869). 

Autoicous ;  very  small,  gregarious,  yellowish-green ;  stem  very 
short,  simple.  Leaves  erect,  straight,  from  an  ovate-oblong  serrulate 
base,  lanceolate-subulate,  deeply  channelled,  acute,  crenulate ;  nerve 
occupying  all  upper  part  of  subula;  cells  of  base  rectangular,  incrassate, 
pellucid,  upper  smaller  quadrate,  chlorophyllose.  Perich.  bracts  more 
obtuse,  semivaginant  at  base ;  capsule  on  a  straight  yellowish  seta, 
erect,  minute,  truncate-ovate,  with  a  short  tumid  neck,  pale  olivaceous, 
leptodermous,  gymnostomous,  exannulate ;  lid  broadly  conic,  sub- 
oblique,  columella  exserted  after  the  lid  falls.  Male  infl.  on  a  basal 
branch,  without  paraphyses,  bracts  oblongo-lanceolate  nerveless. 
HAB. — On  limestone  and  sandstone  rocks.  Fr.  8. 


DICRANAC.E.]  117  [Seligeria. 

Den  of  Dupplin,  Perth  (Don) !  Den  of  Airlie  and  Norran  water  (Drummond)  \  Glen 
Shira,  Inverary  (Rev.  C.  Smith) !  Winch  bridge,  Teesdale  (Black  1854) !  Cawsey 
Dene;  Newcastle  (Bowman).  Mowthorpe  dale  and  Crambeck  (Spruce) !  Fern,  Brechin 
(Fergusson)  1868.  Blair  Athol  (Miss  Mclnroy  1859)  !  Woolsonburyhill,  Sussex  (Mitten 
1859).  Rocks  below  Rolston  Scar,  Yorks.  (Baker  1855).  Todmorden,  High  green 
Wood,  and  Mitholme  Clough,  Heptonstall  (Nowell  1854) !  !  Hardcastle  crag,  Hebden 
bridge  (Hunt  1867) !  !  Castleton,  Derby  (Whitehead  1868) !  ! 

One  of  the  most  elegant  of  our  minute  mosses,  and  probably  often 
overlooked  from  its  inconspicuous  appearance. 

2.     SELIGERIA  PUSILLA  (Ehrh.)  Br.  Schimp. 

Autoicous ;  very  short.  Leaves  lanceolate-subulate,  acute,  faintly 
crenulate  above,  with  minute  pellucid  areolation.  Capsule  pyriform, 
oval ;  lid  conic,  obliquely  subulate.  (T.  XVI,  H.) 

SYN.—  Afzelia  pusilla  EHRH.  PI.  cr.  n.  183  (1787),  et  Beitr.  vii,  100  (1792). 

Weissia  pusilla  HEDW.  Stirp.  cr.  ii,  78,  t.  29  (1789),  Sp.  muse.  64  (1801).  BRID.  muse, 
rec.  II,  P.  I,  76  (1798);  Sp.  muse.  I,  114  (1806);  M ant.  43  (1819);  Bry.  univ.  i,  349 
(1826).  ROEHL.  Moosg.  Deutsch.  155  (1800) ;  Ann.  Wett.  ges.  iii,  106 ;  et  Deutsch.  Fl. 
iii,  50  (1812).  LA  MARK  &  CAND.  Fl.  franc,  i,  455  (1805).  SCHWAEG.  Suppl.  I,  P.  I,  68 
(1811).  HOOK.  TAYL.  Muse.  brit.  47,  1. 15  (1818).  FUNCK  Moost.  14,  t.  9  (1821).  GRAY 
Nat.  arr.  br.  pi.  i,  732  (1821).  NEES  HORNSCH.  Bry.  germ,  ii,  102,  t.  34  f.  25  (1831). 
HOOK.  Br.  fl.  ii,  23  (1833).  HUEB.  muse.  germ.  142  (1833).  MACK.  Fl.  hib.  P.  2,  p.  15 
(1836).  DE  NOT.  Syll.  muse.  227  (1838). 

Bryum  pusillum  HOFFM.  Deutsch.  fl.  ii,  33  (1795). 

Grimmia  pusilla  SCHRAD.  Syst.  samml.  kr.  gew.  i,  10  (1796),  et  Journ.  Bot.  ii,  P.  I,  56 
(1799).  ROTH  Tent.  fl.  germ,  iii,  P.  I,  147  (1800).  SM.  Fl.  brit.  iii,  1184  (1804).  WEB. 
MOHR  Bot.  Tasch.  140  (1807).  SCHKUHR  Deutsch.  Kr.  gew.  P.  2,  57,  t.  25  (1810). 

Grimmia  parasitica  Vorr  in  STURM  Deutsch.  Fl.  ii,  heft  n  (1810). 

Weissia  par asitica  ROEHL.  Deutsch.  Fl.  iii,  51. 

Seligeria  pusilla  BR.  SCHIMP.  Bry.  eur.  fasc.  33 — 6,  mon.  4,  t.  i  (1846).  RABENH.  Deutsch. 
Kr.  Fl.  ii,  P.  3,  132  (1848).  C.  MUELL.  Synops.  i,  418  (1849).  WILS.  Bry.  brit.  54, 1. 15 
(1855).  SCHIMP.  Synops.  113  (1860),  et  2  ed.  124  (1876).  BERK.  Handb.  br.  m.  288 
(1863),  LINDB.  in  Oef.  K.  Vet.  ak.  1864,  p.  187.  MILDE  Bry.  siles.  86  (1869).  DE  NOT. 
Epil.  Bri.  ital.  655  (1869).  HUSN.  mouss.  nord-ouest  44  (1873).  HOBK.  Syn.  br.  m.  37 
(1873).  JURATZ.  Laubm.  Oesterr. — Ung.  68  (1882). 

[Grimmia  Seligcri  WEB.  MOHR  Tasch.  140  et  459.  Weissia  Seligeri  WAHL.  Fl.  lapp.  322 
(1812).  NEES  HORNSCH.  Bry.  Germ,  ii,  105,  t.  34,  f.  26,  is  a  small  dark  green  form  with 
shorter  leaves,  according  to  Schimper's  examination  of  an  original  specimen.] 

Autoicous  ;  in  loose  dwarf  silky  dark-green  tufts.  Stem  very  short, 
simple  or  divided  ;  lower  leaves  short,  narrowly  lanceolate,  upper  long, 
lineal  setaceous,  margin  minutely  crenulate  ;  nerve  thin,  vanishing  at 
apex  or  slightly  excurrent,  wings  very  narrow,  distinct  to  apex,  cells  at 
base  pellucid,  elongato-rectangular,  upper  smaller,  quadrate,  nearly 
empty.  Perich.  bracts  semivaginant  below,  lanceolate-subulate,  nerve 
narrower,  indistinct  at  base  ;  capsule  erect,  on  a  straight  pale  yellow 
seta,  twisting  to  left  when  dry,  ovate,  olivaceous,  when  dry  and 
deoperculate  strongly  turbinate,  sulcate,  fuscous ;  lid  with  an  oblique 
subulate  beak,  teeth  of  per.  orange,  flat,  remotely  articulated,  inflexed 
when  moist,  irregular  at  margin.  Male  infl.  gemmaceous,  on  a  distinct 
branch  or  at  base  of  female,  bracts  minute,  ovate,  concave  apiculate. 

HAB. — Damp    shady    rocks    of    sandstone    or    limestone,    not    uncommon. 
Fr.  5-6. 


DICRANACE^E.]  n8  [Seligeria. 

Belfast  (Drummond).  Buxton  (Wilson) !  Malham  (Nowcll  1858)  !  !  Rosedale  Abbey  and 
Goathland,  Yorks.  (Braithwaite  1858)  !  !  Matlock  (Holmes).  Youlgreave,  Derby 
(Bowman).  Gordale  (Hunt)  \  Hampton  rocks,  Bath  (Hunt  1867) !  !  Blair  Atholl  (Miss 
Mclnroy)\  Levens  Park  (Barnes)  \  !  Litton,  Yorks  (Whitehead  and  Ashton  1878)!  ! 
Castleton,  Derby  (Whitehead  1880)!!  Dent,  Yorks.  '(West  1879).  Castleton,  Braemar 
Fergusson) . 

Variable  in  size  and  colour,  and  also  in  the  length  and  width  of  the 
leaves.  Lindberg  refers  Gr.  Seligeri.  to  SeL  setacea  as  a  Var.  pumila,  yet  in 
W.  &  M.  we  find  "  A  Grimm,  recurvata  foliorum  figura,  seta  madida  recta," 
and  have  therefore  followed  Schimper  on  this  point. 

3.     SELIGERIA  ACTJTIFOLIA  Lindb. 

Autoicous ;  resembling  S.  pusilla.  Leaves  more  acutely  subulate. 
Capsule  larger,  scarce  emerging  above  the  elongated  perichsetial  bracts. 
(T.  XVI,  I.) 

SYN. — Seligeria  acutifolia  LINDB.   in  HARTM.   Skand.  fl.  9  ed.  ii,   75  (1864),   et  in    Not.  ur 
Sallsk.  Fl.  Fn.  fenn.  forh.  ix.  261  (1868);  Muse.  Scand.  26  (1879).     BRAITHW.  in  Journ. 
Bot.  1870,  p.  226.     HOBK.  Syn.  br.  m.  37  (1873). 
Sel.  pusilla  ft.  Lacroixiana  DE  NOT.  Epil.  Briol.  ital.  656  (1869). 
SeL  pusilla  Var.  ft.  acutifolia  SCHIMP.  Syn.  2  ed.  125  (1876). 

Autoicous,  very  small,  deep  green.  Upper  leaves  and  perich.  bracts 
from  a  more  or  less  sheathing  base,  abruptly  narrowed  into  a  subterete, 
setiform,  very  acute,  fragile,  crenulate  subula,  formed  almost  entirely 
by  the  nerve  ;  cells  all  rectangular  and  pellucid.  Seta  very  short  and 
slender,  capsule  small,  the  mouth  scarce  overtopping  the  apices  of 
perich.  bracts,  leptodermous,  pale  and  pellucid,  shortly  pyriform  with 
a  short  neck,  turbinate  and  wide  mouthed  when  empty ;  lid  with  a  very 
short,  scarcely  oblique  beak ;  teeth  of  per.  short,  rather  obtuse. 

Var.  ft.  longiseta  Lindb. 

Plant  larger,  with  a  longer  seta  elevating  the  capsule  beyond  the  perich. 
"bracts  ;  lid  with  a  longer  oblique  beak. 
SYN. — Sel.  pusilla  Var./oZ.  perich.  longioribus  setaceis  WILS.  MSS. 

Sel.  acutifolia  Var.  ft.  longiseta  LINDB.  in  Not.  Sallsk.  Fl.  Fn.  fenn.  1.  c.  et  in  Journ.  Lin. 
Soc.  xi,  467  (1870). 

HAB. — Fissures  of  calcareous  rocks.  Fr.  5 — 6. 

The  Var  ft.  at  Lover's  leap  near  Buxton  (Wilson  1831).  Arncliff,  Yorks.  (Whitehead 
1868) !  !  Ashwood  dale  and  near  Warmhill,  Cheedale  (Whitehead  1880)  !  !  Tideswell 
dale,  Derby  (Whitehead  1881) !  ! 

The  type  of  the  species  was  first  found  in  the  island  of  Gotland,  and 
does  not  occur  here;  it  stands  intermediate  between  S.paucifolia  and  5.  pusilla, 
agreeing  with  the  former  in  the  leaves  and  bracts,  and  with  the  latter  in  the 
capsule  ;  a  gradual  transition  into  the.  more  elongated  form  takes  place,  but 
all  our  British  specimens  have  the  rostellate  lid. 

4.     SELIGERIA  TRIFARIA  (Brid.)  Lindb. 

Autoicous,  densely  caespitose,  resembling  S.  pusilla,  leaves  in  three 
ranks,  straight,  lanceolate-subulate,  rather  obtuse,  short ;  capsule 
thicker.  (T.  XVI,  K.) 


DICRANACE^E.]  1 19  [Seligcria. 

SYN. — Wcissia  trifaria  BRID.  in  SCHRAD.  Journ.  Bot.  iii,  P.  II,  283  (1801). 

Wcissia  tristicha  BRID.  Sp.  muse.  I,  116  (1806) ;  Mant.  44  (1819)  ;  Bry.  univ.  i,  355  (1826). 

ROEHL.   Deutsch.  Fl.  iii,  50  (1813) ;    Ann.  Wett.  Gesells.  iii,   107.     NEES    HORNSCH. 

Bry.  germ,  ii,  S.  2,  108.  T.  34,  f.  28  (1831).     MONT,  in  Arch,  de   Bot.  i,  213  (1833). 

HUEBEN.  Muse.  germ.  145  (1833).     DE  NOT.  Syll.  muse.  228  (1838). 
Grimmia  trifaria  WEB.  MOHR  Bot.  Tasch.  143  et  460  (1807).     SCHKUHR  Deutsch.  kr.  gew. 

P.  II,  58,  t.  25  (1810). 
Grim,  tristicha  SCHWAEGR.  Suppl.  I,  P.  I,  84,  t.  26  (1811).     KAULF.  in  STURM  Fl.  germ.  2, 

16.     FUNCK  Moost.  t.  12  (1821). 
Selig.  tristicha  BR.  SCH.  Bry.  eur.  f.  33 — 6,  mon.  5,  t.  2  (1846).     RABENH.  Deutsch.  Kr.  Fl. 

ii,  S.  3,  132  (1848).     C.  MUELL.  Syn.  i,  420  (1849).     SCHIMP.  Synops.  114  (1860)  et  2  ed. 

126  (1876).     BERK.  Handb.  br.  m.  289  (1863).     MILDE  Bry.  siles.  87  (1869).     DE  NOT. 

Epil.  654   (1869).     HOBK.  Syn.  br.   m.  37  (1873).     JURATZ.  Laubm.   Oesterr.— ung.  69 

(1882). 

Selig.  trifaria  LINDB.  in  Oefv.  Vet.  Akad.  forh.  1863,  p.  413,  et  1864,  p.  189. 

Autoicous ;  densely  csespitose,  dull  yellow-green,  rather  rigid, 
slender,  with  fastigiate  branches.  Leaves  in  three  ranks,  crowded, 
straight,  erect,  from  a  lanceolate  concave  whitish  base,  gradually  nar- 
rowed into  a  short  broad  obtuse  entire  subula  :  nerve  thin  below,  dilated 
above  ;  cells  pellucid,  large  and  elongate-rectangular  at  base,  quadrate- 
rectangular  and  incrassate  above.  Perich.  bracts  longer,  the  nerve 
excurrent  in  a  longer  subula,  slightly  recurved  at  apex.  Capsule  on  a 
yellow  seta,  pachydermous,  subspherical  with  a  swollen  neck,  when  dry 
and  deoperculate,  truncate  smooth  brownish-yellow  ;  lid  large,  orange, 
with  a  long  oblique  acute  beak ;  teeth  of  per.  bright  red,  narrower, 
sometimes  perforated. 
HAB. — Dripping  calcareous  rocks  ;  very  rare.  Fr.  5 — 6. 

ir  Athole,  with  S.  pusilla  (Miss  Mclnroy  1858)!!     Litton,  Yorks.  (Ashton 
'.d  1878)  !  !     Miller's  dale,  Derby  (Cnnliffe  1880)  !  ! 

The  longer  slender  branches,  which  in  the  moist  state  show  distinctly 
the  trifarious  arrangement  of  the  leaves,  afford  a  ready  means  of  identification. 

5.     SELIGERIA  PATJCIFOLIA   (Dicks.)  Camtth. 

Autoicous ;  very  short.  Leaves  lanceolate  below,  subulate  above, 
with  larger  areolation.  Capsule  on  a  long  seta,  oblong,  small  mouthed, 
subcernuous  ;  lid  with  a  long  slender  beak.  (T.  XVII,  A.) 

SYN. — Bryum  paucifolium  DICKS.  Cr.  brit.  fasc.  4,  p.  7,  t.  ii,  f.  3  (1801). 
Gymnostomum  paucif.  SMITH  Eng.  Bot.  t.  2506  (1813). 
Seligeria  calcicola  MITT.  MSS.  et  in  SEEM.  Journ.  Bot.  ii,  194,  t.  19,  f.  i— 6  (1864).     BERK. 

Handb.  br.  m.  289  in  obs. 

Set.  calycina  MITT.  MSS.     LINDB.  in  Oefv.  v.  ak.  Forh.  xxi,  188  (1864). 
Sel.  subcernua  SCHIMP.  Bry.  eur.  Suppl.  fasc.  i — 2.  t.  i  (1864)  ;  Synops.  2  ed.  128  (1876). 
Sel.  paiicifolia  CARRUTH.  in  Journ.  Bot.  iv,  39  (1866).     BRAITHW.  in  Journ.  Bot.   1870,  p. 
226.     HOBK.  Syn.  br.  m.  37  (1873). 

Autoicous ;  densely  gregarious,  pale  green ;  stem  very  short, 
simple.  Leaves  crowded,  erecto-patent,  lowest  lanceolate,  upper  from 
a  narrowly  oblong  base,  longly  subulate,  quite  entire  ;  nerve  vanishing 
at  base,  gradually  stronger,  semiterete,  faint  but  distinct  nearly  to  end 


Glent  Tilt,  Bla 
and  Whitehead 


DICRANACE^.]  120  [Seligena. 

of  subula ;  perich.  bracts  broader  at  base  with  shorter  points  ;  cells 
rectangular  pellucid.  Capsule  light  brown,  on  a  longish  pale  yellow 
seta,  pachydermous,  narrowly  elliptic,  occasionally  somewhat  asym- 
metric with  a  small  mouth,  slightly  cernuous  ;  lid  pale  red,  with  a  long 
slender  slightly  oblique  pale  beak ;  teeth  of  per.  purple,  lanceolate, 
remotely  articulate.  Male  infl.  at  base,  bracts  three,  short. 
HAB. — Detached  chalk  blocks  partially  imbedded  in  soil,  rare.  Fr.  5 — 6. 

On  brick  rubbish,  Wetherby,  Yorks.  (Dickson)  \  On  chalk,  north  side  of  S.  Downs,  Sussex. 
Stanmer  (Jenncr  1840)  !  !  Woolsonbury  hill  (Mitten)  !  Lewes  (Unwin)  !  !  Box  hill, 
Surrey  (Mitten).  Dunton  Green,  Kent  (Holmes). 

Schimper  recognized  original  specimens  of  Dickson's  B.  paucifolium  to 
be  this  plant,  yet  he  makes  no  reference  to  it  in  his  publications,  though 
Mr.  Carruthers  has  given  a  clear  history  of  the  species  in  his  paper  in  Journ. 
Bot.  Dickson's  figure  is  very  incomplete,  and  it  is  probable  that  he  distri- 
buted for  B.  paucifolium,  other  small  mosses  which  resembled  it.  It  is  best 
distinguished  by  the  elongated  capsule,  which  becomes  darker  and  more 
pyriform  when  old. 

6.     SELIGERIA  CALCAREA  (Dicks.)  Br.  Sch. 

Autoicous  ;  resembling  S.  pusilla.  Leaves  ovate  at  base,  narrowly 
lanceolate,  rather  obtuse.  Capsule  larger,  turbinate.  (T.  XVII,  B.) 

SYN. — Bryum  calcareum  DICKS.  PI.  cr.  Brit.  fasc.  II,  3,  t.  4,  f.  3  (1790).     RELH.  Fl.  Cant.  Suppl. 

3,  p.  9  (1793).     SM.  Eng.  Bot.  t.  191  (1794).     WITH.  Bot.  arr.  br.  veg.  3  ed.  iii,  812  (1796). 

ABBOT  Fl.  Bedf.  243  (1798).     HULL  Br.  Fl.  P.  2,  257  (1799). 
Grimmia  calcarea  SM.  Fl.  Brit,  iii,  1187  (1804).     TURN.  muse.  hib.  25  (1804). 
Weissia  calcarea  HEDW.  Sp.  muse.  66,  t.  n,  f.  i — 5  (1801).     BRID.  Sp.  muse.  I,  115  (1806), 

Mant.  43  (1819),  Bry.  univ.  i,  351  (1826).    SCHWAEGR.  Suppl.  I,  P.  I,  115  (1811).    ROEHL. 

Deutsch.  Fl.  iii,  50  (1813).     HOOK.  TAYL.  Muse.  Brit.  47,  t.   15   (1818).     FUNCK  Moost. 

13,  t.  9  (1821).     GRAY    Nat.  arr.  Br.  pi.  i,    732  (1821).     NEES  HORNSCH.  Bry.  germ. 

ii,  2,  p.    10,  t.  31,   f.  24  (1831).     HUEBEN.   Muse.   germ.  144   (1833).     HOOK.  Br.  Fl.  ii, 

23  (1833)- 
Seligeria  calcarea  BR.   SCH.   Bry.  Eur.  fasc.  33 — 36  p.  4,  t.  i  (1846).     RABENH.  Deutsch. 

Kr.  Fl.  ii,  S.  3,  132  (1848).     C.  MUELL.  Syn.  i,  419  (1849).     WILS.  Bry.  Brit.  54,  t.  15 

(1855).     SCHIMP.   Synops.  114  (1860)  et  2  ed.  125  (1876).     BERK.  Handb.  Br.  m.  288,  t. 

24,  f.  2  (1863).     LINDB.  in  Oefv.  v.  ak.  Forh.  1864,  p.  188.     MILDE  Bry.  siles.  87  (1869). 

HOBK.  Syn.  Br.  m.  38  (1873).     HUSN.  Mouss.  nord-ouest  45  (1873). 

Autoicous ;  densely  gregarious,  dull  blackish  green.  Stem  very 
short.  Leaves  short,  broad,  lower  ovato-lanceolate.  upper  from  an 
oval  oblong  base,  abruptly  narrowed  into  a  rather  obtuse  shortish 
curved  subula,  quite  entire ;  nerve  flattish,  faint  at  base,  stronger 
toward  apex  and  occupying  all  upper  part  ;  cells  at  base  shortly 
rectangular,  thin  pellucid,  upper  quadrate,  incrassate,  highly  chlorophyl- 
lose.  Perich.  bracts  subvaginant,  from  a  broadly  oval  base,  longly 
acuminate,  of  laxer  texture  and  with  thinner  nerve.  Capsule  on  a 
thicker  yellowish-brown  seta,  larger,  more  solid,  the  lid  more  shortly 
rostrate  ;  teeth  of  per.  broader  and  more  obtuse,  more  densely  articu- 
late ;  spores  larger.  Male  infl.  with  longer  bracts. 
HAB. — Chalk  cliffs  and  calcareous  rocks.  Fr.  4 — 5. 


Die  RAN  ACE  M.]  I2i  [Seligeria. 

Common  in  Kent,  Sussex  and  Surrey.  Newmarket  heath  (Dickson). 
Barton  hill,  Beds.  (Abbot). 

7.     SELIGERIA   SETACEA  (Wulf.)  Lindb. 

Autoicous  ;  with  habit  of  S.  pusilla.  Leaves  lanceolate-subulate. 
Capsule  on  a  flexuose-arcuate  seta,  subpyriform  oval,  mouth  narrower  ; 
lid  subulate,  nearly  straight.  (T.  XVII,  C.) 

SYN. — Bryum  trichoides  acaulon  palustrc  minimum,  setis   et   capsulis   brevissimis  DILL.    Hist. 

muse.  387,  t.  49,  f.  53  (1741),  et  herb. 

Bryum  paludosum  L.  Sp.  pi.  ii,  IIIQ  (1753).     HULL  Br.  Fl.  P.  2,  257  (1799). 
Bryum  setaceum  WULFEN  in  JACQ.  Miscell.  ii,  96,  t.  12,  f.   i    (1781).     L.  Syst.  Veg.  949. 

GMEL.  in  L.  Syst.  nat.  13  ed.  ii,  1331  (1790).     HULL  Br.  Fl.  P.  2,  265  (1799). 
Grimmia  recurvata  HEDW.  Stirp.  i,  102,  t.  38  (1787) ;  Sp.  muse.  75  (1801).     BRID.  Muse. 

rec.  ii,  P.  I,  59  (1798) ;  Sp.  muse.  I,  101  (1806).     ROTH  Fl.  germ,  iii,   P.   I,   141    (1800). 

ROEHL.   Moosg.   Deutsch.   122    (1800).     SMITH  Fl.   brit  iii,    1183    (1804);    Eng.  Bot.  t. 

1489.     TURN.  Muse.  hib.  24  (1804).     WEB.   MOHR  Bot.  Tasch.    145   (1807).     SCHKUHR 

Deutsch.  kr.  gew.  P.  2,  60,  t.  25  (1810).  SCHWAEGR,  Suppl.  I,  P.  I,  83  (1811).  SCHLEICH. 

Cat.  pi.  helv.  29.  MART.  Cr.  erl.  113  (1817).     FUNK  Moost.  16,  t.  n  (1821). 
Bryum  recurvatum  DICKS.  PI.  cr.  Brit.  fasc.  II,  7   (1790).     HOFFM.  Deutsch.  Fl.  ii,  31 

(1795).     WITH.  Bot.  arr.  br.  Veg.  3  ed.  iii,  838  (1796). 
Bryum  Wulfenii  LAICH.  PI.  eur.  482  (1794). 
Weissia  recurvata   ROEHL.    Deutsch.   fl.   iii,   51  (1813);  Ann.    Wett.    ges.  iii,   P.  I,  101. 

WAHLENB.  Fl.  suec.  ii,  757  (1826).     HOOK.  TAYL.  Muse.  brit.  47,  t.  15   (1818).     BRID. 

Mant.  43  (1819) ;  Bry.  univ.  i,  352  (1826).     HOOK.   Fl.   Scot.  P.  2,   131    (1821).     GRAY 

Nat.  arr.  Br.  pi.  5,732  (1821).     NEES  HORNSCH.  Bry.  germ  ii,  S.  2,  97,  t.  34,  f.  27  (1831). 

HUEBEN.  Muse.  germ.  141  (1833).     BALS.  DE  NOT.  Pr.  bry.  Med.  140  (1834).     MACK. 

Fl.  hib.  P.  2,  15  (1836).     DE  NOT.  Syll.  muse.  228  (1838).     HOOK.  Br.  Fl.ii,  23  (1833). 
Grimmia  pusilla  SM.  Eng.  bot.  t.  2551. 
Seligeria  recurvata  BR.  SCH.  Bry.  eur.  f.  33 — 6  Mon.  p.  6,  t.  3  (1846).     RABENH.  Deutsch. 

Kr.  Fl.  ii,  S.  3,  133  (1848).     C.  MUELL.  Syn.  i,  419  (1849).     WILS.  Bry.  brit.  55,  t.  15 

(1855).     SCHIMP.  Synops.  115  (1860),  et  2  ed.   127   (1876).     BERK.    Handb.  br.   m.  289 

(1863).     DE  NOT.  Epil.  655  (1869).     MILDE  BRY.  siles.  87  (1869).     HOBK.  Syn.  br.  m. 

38  (1873).     HUSN.  Mouss.  nord-ouest  45    (1873).      JURATZ.  Laubm.  Oesterr.  — ung.  70 

(1882). 

Selig.  sctacca  LINDB.  in  Oefv.  vet.  ak.  forh.  1863,  p.  413  et  1864,  p.  189. 

Autoicous  ;  widely  csespitose,  olivaceous-green.  Stem  very  short, 
fragile,  simple  or  dichotomous.  Lower  leaves  oblongo-lanceolate,  upper 
from  an  erect  ovato-lanceolate  base,  longly  subulate,  flexuose,  acute, 
entire;  nerve  semiterete,  longly  excurrent ;  cells  at  base  pellucid, 
elongated  rectangular,  above  incrassate,  subquadrate,  chlorophyllose  ; 
perich.  bracts  from  a  sheathing  base  subulate-setaceous,  all  subflexuose. 
Calyptra  rather  large.  Capsule  on  a  slender  yellowish  seta,  arcuate 
when  moist,  erect  when  dry,  subspheric  oval  or  oblong,  with  a  swelling 
neck,  inclined,  leptodermous,  yellow-brown  with  a  red  mouth ;  lid  con- 
vexo-conic  at  base,  with  a  straight  subulate  beak ;  teeth  of  per.  lineal, 
obtuse  or  lanceolate,  sometimes  cleft  at  apex,  deep  orange.  Male  as  in 
S.  pusilla. 
HAD. — Shaded  sandstone  rocks  or  stones.  Fr.  4 — 5. 

Forfar  and  Bilston  burn  (Don)  !  By  the  Calder  and  Kilbride,  Glasgow.  Brandon  hill, 
Ireland  (Mackay).  Braemar  (Croall  1856).  Todmorden  (Noivell  1858)!  !  Den  of  Airlie 
(Coward  1858) !  Pentlands  and  Cleish  hills  (Arnott).  Hardcastle  crag  (Hunt  1867)  !  ! 
Greenfield,  Yorks.  (Whitehead  1867)!!  Kentmere,  Westmoreland  (Stabler  1867)! 
Ashdown  forest  (Holmes  1877).  Near  Denbigh  (Davies).  Monsal  Dale,  Derby  (White- 
head  1881) !  !  Devil's  kitchen,  Twll  Dhu  (Holmes)  \  ! 


DICRANACE^.]  122  [BracJtydontium. 

This  species  may  be  readily  distinguished  from  S.  pusilla  by  its  longer 
leaves  and  the  seta  becoming  flexuose  and  arched  when  moist  ;  the  capsule 
also  is  smaller  and  more  globose  than  in  the  other  species. 

8.   BRACHYDONTIUM    BRUCH. 

(Fiirnr.  in  Flora  1827,  P.  II,  37.) 

Plants  very  small,  densely  gregarious ;  leaves  resembling  those  of 
Seligeria.  Calyptra  mitriform,  5-lobed,  conical.  Capsule  erect,  oblong, 
substriate,  with  a  very  broad  persistent  annulus  ;  teeth  of  per.  confluent 
at  base,  broad,  truncate,  very  short  and  thin,  dotted,  and  with  a  few 
perforations. — Deriv.  /fy>axus  short,  oSous  a  tooth. 

Schimper  states  that  this  genus  was  founded  by  Bruch,  whose  pupil 
Fiirnrohr  published  the  manuscript  notes  in  Bruch's  herbarium  without 
acknowledgment,  and  perhaps  for  this  reason  afterwards  altered  the  name  to 
Brachyodus.  The  genus  Campylostelium,  usually  associated  with  this,  finds  a 
more  natural  place  with  Glyphomitrium. 

BRACHYDONTIUM  TRICHODES    (Web.  Mohr.)  Fiirnr. 
Autoicous ;     very     small,     simple.       Leaves     lanceolate-subulate, 
straight.       Capsule    cylindric-oblong,    erect ;    lid    convex,    rostellate. 
(T.  XVII,  D.) 

SYN. —  Gymnostomum  trichodes  WEB.  MOHR  Ind.  mus.  pi.  cr.  3  (1803)  et  Arch.  syst.  naturges.  i, 
P.  I,  124,  t.  4,  f.  i  a— d  (1804)  ;  Bot.  Tasch.  85  (1807).  SCHKUHR  Deutsch.  kr.  gew. 
P.  II,  23,  t.  10  (1810).  ROEHL.  Deutsch.  Fl.  iii,  39  (1813).  BRID.  Mant.  u  (1819) ;  Bry. 
univ.  i,  58  (1826).  NEES  HSCH.  Bry.  germ,  i,  184,  t.  12,  f.  29  (1823). 

Ancectangium  trick.  SCHWAEG.  Suppl.  I,  P.  I,  33,  t.  10  (1811). 

Grimmia  trich.  Eng.  Bot.  t.  2563  (1813). 

Weissia  trich.  HOOK.  TAY.   Muse.  br.  45,  t.   15  (1818).     GRAY  Nat.  arr.  br.   pi.  i,  730 

(1821).     HUEBEN.  Muse.  germ.  138  (1833).     HOOK.  Br.  Fl.  ii,  21  (1833).     MACK.  Fl.  hib. 

P.  2,  14  (1836). 
Brachydontium   trichodes  FURNR.  in  Flora  X,   P.    II,  Beil.  I,  p.  37  (1827).     MILDE  Bry. 

siles.  89  (1869). 
Brachyodus  trichodes  FURNR.  op.  c.  p.  112,  et  xii,  P.  II,  594  (1829).     NEES  HSCH.  Bry. 

germ,  ii,  P.  II,  3,  t.  25  (1831).     BR.  SCH.  Bry.  eur.  f.  33 — 6,  Mon.  3,   t.    i    (1846). 

C.   MUELL.  Syn.   i,  416  (1849).     WILS.   Bry.  br.  53,  t.   14  (1855).     SCHIMP.  Syn.  117 

(1860),  et  2  ed.   132  (1876).     BERK.  Handb.  br.  m.  289,  t.  24,  f.  3  (1863).     DE  NOT. 

Epil.  667  (1869).     HOBK.  Syn.  br.  m.  36  (1873).      JURATZ.  Laubm.  Oesterr. — ung.  71 

(1882). 

Autoicous ;  plants  gregarious,  minute,  very  slender.  Leaves 
erecto-patent,  lanceolate,  the  nerve  excurrent  in  a  semiterete  slightly 
channelled  subula;  areolation  quadrato-hexagonal  above,  rectangulo- 
hexagonal  at  base.  Capsule  oblong,  cylindric,  narrowed  at  base,  indis- 
tinctly striate,  when  old  plicate,  leptodermous,  pale  brown  ;  seta  pale, 
slender,  twisted  to  the  right  below  and  to  the  left  above  when  dry ; 
calyptra  reaching  half  down  capsule,  conical,  split  into  3 — 5  lobes  ; 
annulus  broad,  of  3  series  of  large  cells,  separating  in  fragments ;  lid 
conic,  red  at  base  with  a  straight  subulate  beak  ;  teeth  16,  very  irregular, 


DICRANACE.E.]  123  [Blindia. 

lanceolate,  truncate,  of  2 — 5  joints,  perforated,  pale,  smooth  ;    spores 
small,  pale.     Male  infl.  on  a  short  radical  branch,  gemmaceous,  bracts 
broad,  ovate,  nerveless. 
HAB. — Wet  sandstone  rocks.  Fr.  4. 

Ben  Buy  and  Ben  Nevis  (Rev.  C.  Smith).  Greenfield,  Yorks.  (Hobson  1835) !  Henfield 
and  Black  down,  Sussex  (Borrcr)  \  Todmorden  (Nowcll  1849) !  Park  quarry, 
Castle  Howard  (Baker  1858)  !  !  Tebay  (Barnes  1868)  !  Alderley  edge,  Cheshire  (White- 
head  1865) !  !  Bolton  and  Ainsworth  (Scholefield  1861) !  Grayrigg  forest,  Westmoreland 
(Stabler  1868)  !  Fern,  Brechin  (Fergusson  1868)  !  Westward,  Cumbd.  (Rev.  R.  Wood 
1880)  !  !  Near  Lough  Bray  (Taylor).  Kelly's  Glen,  Dublin  (Moore  1863). 

Subf.  4.  DICRANEM.  Plants  small,  or  tall  and  robust;  leaves 
lanceolate,  often  falcato-secund  and  serrated,  glossy,  smooth  or  some- 
times papillose  ;  cells  narrow  and  elongate  above,  those  at  the  basal  angles 
larger,  vesicular,  colored  or  pellucid.  Capsule  often  subcylindric  and  curved, 
lid  rostrate,  teeth  of  per.  16,  solid,  lanceolate,  trabeculate,  usually  cleft  or 
perforated  in  the  divisural  line,  rarely  wanting. 

9.   BLINDIA   BR.   SCH. 

Bry.  eur.  f.  33—36  (1846). 

Plants  densely  caespitant,  dichotomous,  fastigiate  ;  leaves  quinque- 
farious,  lanceolate-subulate,  nerved,  smooth,  cells  narrow,  quadrate 
above,  linear  at  base,  with  large,  colored,  vesicular  angular  cells. 
Calyptra  dimidiate-cucullate ;  capsule  immersed  or  exserted,  sub- 
spherical  with  a  turgid  neck,  pachydermous.  Peristome  none  or  simple, 
teeth  16,  lanceolate,  remotely  jointed,  slender,  smooth,  cartilaginous. 
Deriv. — After  pastor  Blind  of  Munster. 

CLAVIS   TO   THE    SPECIES. 

Dwarf.     Capsule  immersed,  gymnostomous.  ccespiticia. 

Taller.     Capsule  exserted,  peristomate.  acuta. 


i.   BLINDIA   C-ffiSPITICIA  (Schwaeg.)  Lindb. 

Autoicous ;    leaves  oblong,   subulate,  entire   with   hyaline    points. 
Capsule  immersed,  gymnostomous.     (T.-XVII,  E.) 

SYN. — Ancectangium  ccespiticium  SCHWAEGR.  in  SCHRAD.  neu  Jour,  iv,  13,  t.  II,  A  (1801) ;  Suppl. 

I,  P.  I,  35,  t.  12  (1811).     FUNCK  Moost.  7,  t.  5  (1821).     HOPP.   HORNSCH.  PI.  cr.  Dec.  i 

(1817). 
Gymnostomum  ccesp.  WEB.  MOHR  Bot.  Tasch.  77  et  453    (1807).     SCHKUHR  Deutsch.   Kr. 

gew.  28,  t.  n,  c.  (1810).     Eng.  Bot.  t.  2778.     HOOK.  br.  fl.  ii,  6  (1833).     HUEBEN.  Muse. 

germ.  57  (1833).     DE  NOT.  Syll.  288  (1838). 
Schistidium  c<zsp.  BRID.  Mant.  21  (1819) ;  Bry.  un.  i,  119    (1827).     NEES    HORNSCH.    Bry. 

germ,  i,  94,  t.  8,  f.  2  (1823). 
Stylostegium  casp.  BR.  SCH.  Bry.  eur.  f.  33—36,  p.  3,  t.   i  (1846).     Synops.   118  (1860)  ; 

2  ed.  130  (1876).     HARTM.  Sk.  Fl.   RABENH.  Deutsch.  kr.  fl.  ii,  P.  3,  131  (1848).     WILS. 

Bry.  br.  56,  t.  38  (1855).     BERK.  Handb.  br.  m.  287  (1863).     DE  NOT.  Epil.  Bri.  ital.  657 

(1869).     HOBK.  Syn.  br.  m.  38  (1873).     JURATZ.  Laubm.  Oesterr.— ung.  73  (1882). 
Blindia  Stylostegium  C.  MUELL.  Synops.  i,  345  (1849). 
Blindia  cczspiticia  LINDB.  Muse.  Scand.  25  (1879). 


DICRANACE.E.]  124  [BUndiet. 

Autoicous  ;  densely  csespitose,  in  dwarf  rigid  tufts ;  about  £  in. 
high,  dull  yellow-green  above,  fuscescent  below,  rigid  dichotomous  and 
fastigiate.  Leaves  crowded,  erecto-patent,  or  slightly  falcato-secund 
above,  oblong,  subulate,  ending  in  a  very  short  hyaline  point,  entire, 
thin-nerved ;  cells  at  base  narrow  linear-oblong,  angular  enlarged  brown 
incrassate,  upper  narrow  smaller  flexuose.  Perich.  bracts  much  larger, 
sheathing.  Capsule  immersed,  obovate-globose,  truncate,  gymnosto- 
mous,  pachydermous,  pale  brown  ;  calyp.  covering  only  the  lid  which 
is  orange,  depressed,  obliquely  rostrate,  and  adnate  to  the  columella. 

Male  infl.  gemmaceous,  at  base  of  fertile  branches ;  bracts  concave, 
ovate,  acuminate. 

HAB. — Crevices  of  wet  mountain  rocks  ;  rare.  Fr.  7 — 9. 

Summit  of  Ben  Lawers  (Hooker  1830)  !  ! 

2.   BLINDIA  ACUTA   (Huds.)  Br.  Sch. 

Dioicous  ;  leaves  oblongo-lanceolate,  linear-subulate,  acute. 
Capsule  exserted,  pyriform  ;  with  16  lanceolate  entire  or  perforated 
teeth.  (T.  XVII,  F.) 

SYN. — Bryum  pilosum,  sphagni  subulati  facie  DILL.  Hist.  muse.  374,  t.  47,  f.  34  (1741)  et  herb. 
Bryum  verticillatum  LIGHTF.  Fl.  Scot,  ii,  733  (1777). 
Bryum  acutum  HUDS.  Fl.  angl.  2  ed.  484  (1778).     WITH.  Bot.  arr.  br.   veg.  3   ed.  iii,  823 

(1796).     DICKS.  Herb.  sice.  fasc.  17,  n.  20.     HULL  Br.  fl.  P.  2,  260  (1799).     P.  BEAUV. 

Prodr.  45  (1805). 

Weissia  acuta  HEDW.  Stirp.  cr.  iii,  85,  t.  35    (1792) ;  Sp.   muse.  71  (1801).     BRID.    Muse. 

rec.  II,  P.  I,  78  (1798);  Sp.  muse.    I,   no  (1806)  ;  Mant.   47    (1819);  Bry.  univ.  i,  362 

(1826).     SCHWAEG.  Suppl.  I,  P.  I,  69  (1811).     ROEHL.   Deutsch.  fl.  iii,  51  (1813);    Ann. 

Wett.  ges.  iii,  112.     WAHL.  Fl.  lapp.   322  (1812).     HOOK.  TAYL.  Muse.  br.  48,   t.   xv. 

(1818).     GRAY  Nat.  arr.  br.  pi.  i,  732  (1821).    HOOK.  Fl.   Scot.  P.  2,  131  (1821)  ;  Brit.  fl. 

ii,  24(1833).    FUNCK  Moost.  14,  t.  9(1821).    HUEBEN.  Muse.  germ.  146  (1833).    MACK.  Fl. 

Lib.  P.  2,  16  (1836).     DE  NOT.  Syll.  muse.  230  (1838). 
Weissia  rupestris  HEDW.  Sp.  muse.  t.  14. 

Grimmia  rupincola  WEB.  MOHR  Reise  Schwed.  t.  2,  f.  3  a — d  (1804). 
Grimmia  acuta  SM.  Fl.  brit.  iii,  1192    (1804);  Eng.   Bot.    t.    1644.     TURN.    Muse.    hib.  29 

(1804).  WEB.  MOHR  Bot.  Tasch.  145  (1807).  SCHKUHR  D.  kr.  gew.  P.  11,50,  t.  26  (1811). 
Weissia  fastigiata  NEES  HSCH.  Bry.  germ,  ii,  t.  35,  f.  31  (1831). 
Blindia  acuta  BR.  SCH.  Bry.  eur.  f.  33— 36, p.  3,  t.  i  (1846).     C.  MUELL.  Syn.  i,  342  (1849). 

RABEN.  Deutsch.  Kr.  fl.  ii,  s.  3,  133  (1848).     WILS.  Bry.  brit  58,  t.   15   (1855).     SCHIMP. 

Syn.  119  (1860),  et  2  ed.  131  (1876).     BERK.  Handb.  br.  m.  286,  t.  24,  f.  i  (1863).     MILDE 

Bry.  siles.  88  (1869).     HOBK.   Syn.   br.  m.  39  (1873).     JURATZ.   Laubm.  Oesterr.— ung. 

72  (1882). 

Seligeria  acuta  DE  NOT.  Epil.  bri.  ital.  653  (1869). 

Dioicous  :  laxly  casspitose,  in  compact  fragile  tufts  i — 4  in.  high, 
yellow-green  above,  olivaceous  or  black  below ;  the  young  stem  pale 
red.  Leaves  crowded,  erecto-patent,  the  apical  sometimes  secund, 
oblongo-lanceolate,  linear-subulate,  acute,  entire,  convolute-concave ; 
angular  cells  large,  orange-brown ;  nerve  thin,  excurrent.  Perich. 
bracts  from  a  broad  sheathing  base,  suddenly  plicato- subulate.  Caps, 
on  a  short  purple  seta,  pachydermous,  pyriform  oval,  erect,  pale  brown, 


DICRANACE^.]  125  [Didymodon. 

cyathiform  and  black  when  old ;  calyp.  reaching  middle  of  capsule ; ' 
lid  orange,  depressed,  with  an  oblique  subulate  beak  ;  teeth  of  per.  erect, 
lanceolate,  entire  or  perforated  here  and  there,  or  cleft  at  apex,  purple, 
smooth. 

Male  pi.  shorter,  infl.  terminal,  gemmae,  with  ovate  acuminate 
bracts. 

HAB. — Crevices    of  alpine   rocks,    and   among   stones    by   mountain    rills ; 

frequent.  Fr.  7. 

In  exposed  places  the  plants  become  dwarfed,  and  the  seta  so  short  as 
scarcely  to  elevate  the  capsule  above  the  leaves  ;  tall  plants  are  generally 
decumbent  and  denuded  of  leaves  at  the  base. 

10.    DIDYMODON    (HEDW.)   WEB.  MOHR. 

(Bot.  Tasch.  1807.) 

Plants  slender,  csespitose,  dichotomous,  interwoven  with  radicular 
tomentum ;  leaves  secund,  lanceolate  setaceous,  with  a  broad  nerve  ; 
angular  cells  dilated.  Caps,  straight  oblong  or  cylindric,  on  a  cygneo- 
flexuose  seta  ;  calyp.  cucullate,  entire  at  base  ;  per.  arising  below  mouth 
of  caps,  of  16  teeth,  cleft  to  base  into  two  nearly  equal,  linear-subulate 
legs,  remotely  articulate,  erect,  connivent  when  moist. — Deriv.  gi%u>s 
twin,  oSovs  a  tooth. 

The  genus  Didymodon  was  established  by  Hedwig  in  1792  for  D.  rigidulus, 
to  which  in  1801  he  added  D.  homomallus ;  the  former  is  now  referred  to 
Barbtila,  the  latter  to  Ditrichum.  In  1807  Weber  and  Mohr  placed  under  it 
the  two  species  of  Swartzia,  Ditrichum  pusillum  and  glaucescens  and  a  new  species 
longirostmm  which  Bridel  had  a  year  previously  named  Dicramcm  denudatum. 
It  is  clear  this  last  remains  the  type  of  the  genus,  and  cannot  be  set  aside  for 
the  modern  Dicmnodontium,  than  which  it  is  also  far  more  appropriate,  for  the 
teeth  are  not  like  those  of  Dicmnum,  and  by  the  peristome  alone  can  it  stand 
separate  from  the  latter  genus.  Closely  allied  is  the  Mexican  Atvactylocavpns 
MITT,  of  which  a  third  species  is  the  Metzlevia  alpina  SCHIMP.  found  in  Switzer- 
land and  Austria. 

DIDYMODON  DENUDATITS  (Brid.)  Lindb. 

Dioicous  ;  leaves  from  an  oblong  base  longly  subulate,  slightly 
denticulate  above,  with  hyaline  angular  cells.  Caps,  on  a  cygneous 
seta,  subcylindric,  lid  with  a  long  straight  beak.  (T.  XVII,  G.) 

SYN. — Dicrannm  flcxuosum  BRID.  Muse.  rec.  II,  P.  I,  163  (1798).     ROEHL.  Moosg.  deutsch.  329 

(1800). 
Dicranum  denudatum  BRID.  Sp.  muse.  I,  184  (1806) ;  Mant.  61  (1819).     C.  MUELL.  Synops. 

i,  403  (1849).     JENS.  Bry.  dan.  95  (1856). 
Didymodon  longirostmtn  WEB.  MOHR  Bot.  Tasch.  155  et  463  (1807).     ROEHL.  Deutsch.  fl. 

iii,  56  (1813).     FICIN.  Fl.   dresd.   ii,  43   (1823).     BRID.    Bry.   ur.iv.  i,  512  (1826).     DUBY 

Bot.   gall,   ii,  567  (1830).     HUEBEN.  Muse.  germ.  279  (1833).     DE  NOT.  Syll.  muse.  196 

(1838). 
Cynodontium  long.  SCHWAEGR.  Suppl.  I,  I,  in,  t.  29  (1811).     MART.  Fl.  cr.  erl.  94  (1817). 


DICRANACE^B.]  126  [Didymodon. 

Dicranodontlum  longirostre  BR.  SCH.  Bry.  eur.  fasc.  41,  p.  2,  t.  i  (1848).  RABENH. 
Deutsch.  Kr.  fl.  ii,  S.  3,  149  (1848).  WILS.  Bry.  brit.  86,  t.  39,  (1855).  SCHIMP.  Synops. 
96  (1860),  et  2  ed.  99  (1876).  BERK.  Handb.  br.  m.  274  (1863).  MILDE  Bry.  siles-75 
(1869).  DE  NOT.  Ep.  bri.  ital.  636  (1869).  HUSN.  Mouss.  nord-ouest  55  (1873).  HOBK. 
Syn.  br.  m.  49  (1873).  JURATZ.  Laubm.  oesterr. — ung.  52  (1882). 

Trichostomum  longirostre  HARTM.  Skand.  fl. 
Didymodon  denudatus  LINDB.  Muse,  scand.  25  (1879). 

Dioicous;  in  soft  tufts,  i — 3  in.  high,  erect  or  ascending,  almost  naked 
at  base,  pale  or  glossy  yellow-green  above,  interwoven  with  rufous 
tomentum.  Leaves  readily  deciduous,  falcato-secund,  from  a  subva- 
ginant  base,  longly  subulate,  involute-concave,  serrate  or  entire  at 
apex,  smooth  at  back;  basal  auricles  suddenly  inflated,  equal  to  all 
base  of  wing,  hyaline  and  usually  rufescent  toward  margin,  upper  cells 
small,  quadrate ;  nerve  broad  flattened,  half  width  of  base,  excurrent. 
Perich.  bracts  longly  sheathing,  suddenly  subulate  with  the  excurrent 
nerve,  laxly  areolate  below;  seta  pale,  flexuose.  Capsule  small,  sub- 
cylindric,  leptodermous,  pale  brown,  nearly  equal ;  lid  straight,  rostrate, 
long  as  capsule  ;  peristome  pale  red.  Male  infl.  terminal,  gemmaceous. 

HAB. — On  turfy  banks  and  rotten  wood  in    subalpine  districts.     Fr.    very 
rare.    8. 


Cromagloun  (Taylor  1841).     O'Sullivan's  cascade  (Hunt  1867) !    Stirrup  wood,  Mottram 

DO)  !  !      Highgreen  wood,  Heptonstall  (Nc 
Staley  brushes  (Hunt  1865)  !  !     Bolton  (Dr.  Wood).     Trefriew,  Carnarvon  (Dr.   Wood 


(Whitehead   1860) !  !      Highgreen  wood,   Heptonstall  (Newell) !  !     Hebden   valley  and 


1863)  !  Bowness  (Hunt  1871)  !  Trossachs  (Wilson  1858)  !  !  Campsie  (McKinlay)  \ 
Ben  Arthur  (Dr.  Stirton  1866)  !  Barmouth  (Whitehead  1877) !  !  Skye,  in  fruit  (Prof. 
Law  son  1872)  !  ! 

Var.  ft.  alpinus  (Schimp.) 

Plants  taller  and  more  robust ;  leaves  not  deciduous,  erect  or  subsecund 
rather  rigid. 

SvTX.—Campylopus  alpinus  SCHIMP.  Bry.  eur.  Suppl.  I-II  (1864).     BRAITHW.  Journ.  Bot.  1870, 

p.  389.     HOBK.  Syn.  br.  m.  51  (1873). 

Camp,  pachyneuros  MOLENDO  Moos-stud,  aus  dem  Alg.  alp.  63  (1865). 
Camp,  intermedius  WILS.  MSS. 

HAB.— Twll-Du  near  Llanberis  (Wilson)  !  Arrochar,  with  fruit  (McKinlay).  Callander  (Stirton). 
Glen  Callater  and  Stronaclacher  (Hunt) !  !  Ben  More  in  Glen  Dochart  (Schimper 
1865)  !  Summit  of  Ingleboro  (Hunt  1867) !  !  Powerscourt,  Lough  Bray,  Kelly's  Glen, 
Cushendall  and  Kylemore  (Moore)  \  !  Cader  Idris  (Whitehead  1879) !  !  Ben  Wyvis 
(Howse  1870) ! 

This  very  variable  moss  resembles  Ditrichum  flexicaule,  from  which  it  is 
easily  separable  by  the  different  areolation  of  the  leaf  at  base. 

In  Bot.  Zeit.  1870,  p.  392,  Milde  has  an  excellent  paper  "  ueber  Dicrano- 
dontium,"  in  which  he  shows  that  Camp,  alpinus  must  be  referred  as  a  variety 
to  the  present  species,  as  Juratzka  had  already  done  in  Hedwigia,  1867, 
p.  1 80,  the  rhombic  and  oval  upper  cells  of  a  Campylopus  being  absent.  He 
enumerates  five  other  varieties,  one  of  which  circinatum,  must  be  restored  to 
specific  rank,  and  placed,  as  Mitten  has  done,  under  Dicranum  uncinatum. 

The  second  species  Die.  aristatum  SCHIMP.  must  also  be  referred  without 
the  slightest  doubt  to  Dicranum  asperulum  MITTEN,  with  fertile  Indian  plants 
of  which  ours  agrees  precisely  in  leaf-structure. 


DICRANACE^;.]  127  [Campylopus. 

ii.      CAMPYLOPUS    BRID. 

Mantissa  71  (1819). 

Mosses  resembling  Dicranum  in  habit.  Leaves  with  a  broad  nerve 
of  several  strata  of  cells,  furrowed  or  smooth  at  back  ;  basal  cells 
dilated,  hyaline  or  brown  at  the  excavated  angles.  Calyptra  cucullate, 
fringed  at  base.  Caps,  on  an  arcuate  or  flexuose  or  rarely  straight  seta, 
equal,  pachydermous,  generally  striated,  deeply  sulcate  when  dry. 
Annulus  of  i — 3  series  of  cells.  Peristome  dicranoid. — Inhabiting  turfy 
ground  and  rocks.  Der. — ra/xTruXos  curved,  TTOUS  a  foot. 

Nearly  200  species  are  referred  to  this  genus,  some  of  which  are  no 
doubt  synonymous,  and  a  great  number  are  only  known  in  a  sterile  state  ; 
more  than  one-third  of  them  are  natives  of  central  America.  C.  Mueller  and 
some  other  bryologists  retain  the  genus  as  a  section  of  Dicranum,  yet  it  has 
a  peculiar  facies  readily  recognized  after  a  little  practice,  by  which  we  may 
with  certainty  separate  the  two.  Several  species  produce  slender  flagelliform 
branches,  by  which  they  propagate,  and  very  frequently  the  stems  are  matted 
together  by  an  abundance  of  branched  radicles  produced  from  the  axils  or 
backs  of  the  leaves.  The  leaves  themselves  are  densely  crowded,  imbricated 
when  dry,  erecto-patent  when  moist,  and  frequently  terminate  in  a  white 
hair  ;  above  the  base  the  marginal  cells  are  extremely  narrow,  and  they 
become  wide  and  rectangular  towards  the  nerve,  the  transverse  walls  being 
frequently  incrassate,  in  the  narrow  part  of  the  lamina  they  are  much  smaller, 
quadrate,  rhombic  or  oval,  and  often  crammed  with  chlorophyl ;  the  structure 
of  the  nerve  is  best  seen  in  transverse  section,  the  back  of  it  being  often 
furrowed  by  the  projection  of  alternate  rows  of  cells,  which  sometimes  even 
extend  into  lamellae.  The  curious  falling  off  of  the  leaves  in  several  species 
of  this  genus  and  in  the  last  is  attributed  by  Lindberg  to  some  change  in  the 
contents  of  the  basal  cells,  akin  to  the  fatty  degeneration  in  animal  tissues, 
the  result  being  the  arrest  of  circulation  through  those  cells  and  their  separa- 
tion from  the  stem. 

CLAVIS  TO  THE  SPECIES. 
Leaves  concolorous. 

Leaves  not  auricled  at  base. 

Nerve  J  width  of  leaf-base.  pyriformis. 

Nerve  more  than  J  width  of  leaf-base. 
Stems  tomentose  above. 

Nerve  £  width  of  base  ;  basal  cells  large,  lax,  hyaline.  fragllis. 

Nerve  f  width ;  basal  cells  small  and  narrow.  Schimperi. 

Stems  not  tomentose  above,  very  short.  subitlatus. 

Leaves  auricled  at  base. 

Stems  not  tomentose  above,  nerve  above  half  width  of  base. 
Leaves  dense,  nearly  entire. 

Leaves    shortly    and    gradually  subulate,   margin    inflexed 

from  above  base.  Schwarzii. 

Leaves    longly    subulate    by    the    margin     being    inflexed 

suddenly  at  \  their  length.  Shawii. 

Leaves  distant,  serrate  above.  setifolius. 

Stems  tomentose  throughout,  nerve  one-third  width  of  base. 

Leaves  long,  suddenly  subulate  for  $  length  of  leaf.  fiexuosus. 

Leaves  short,  gradually  narrowed  into  a  subula  half  their  length,    paradoxits. 
Leaves  with  hyaline  points. 
Point  of  leaf  a  hoary  hair. 

Leaves  auricled  at  base ;  nerve  J  width.  atrovirens. 

Leaves  not  auricled  ;  nerve  §  width.  introflexus. 

Hyaline  point  very  short ;  nerve  j  width  of  base.  bravipilus. 


DICRANACE.E.]  128  [Campylopus. 

1.  CAMPYLOPUS  PYRIFORMIS  (Schultz)  End. 

Dioicous ;  densely  caespitose,  not  tomentose  above ;  leaves  erecto- 
patent,  lanceolate-subulate,  longly  setaceous,  denticulate  at  point. 
Caps,  oval,  pale,  lid  conico-subulate,  red.  (T.  XVII,  I.) 

SYN. — Dicranum  ftcxuosum  HEDW.  Sp.  muse.  t.  38  (1801). 

Dicranum  flexuosum  Var.  SCHULTZ  Fl.  starg.  298  (1806). 

Dicranum  pyrif or  me  SCHULTZ  Suppl.  Fl.  starg.  73  (1819).     FUNCK  Moost.  31,1.21   (1821). 

SPRENG.  in  L.  Syst.  veg.   iv.   167  (1827).     HUEBEN.  Muse.  germ.  268  (1833).     MITT. 

Journ.  Lin.  soc.  i,  Suppl.  17  (1859). 
Campylopus  flcxuosus  BRID.  Bry.  univ.  i,  469,  p.p. 
Campylopus  pyriformis  BRID.  Bry.  univ.   i,  471    (1826).     BRAITHW.  in   Journ.    Bot.    1870, 

p.  393.     HOBK.  Syn.  br.  m.  54. 
Camp,  turfaceus  BR.  SCH.  Bry.  eur.  fasc.  41,  p.  4,  t.  3  (1848).     WILS.   Bry.   brit.  89,  t.  40 

(1855).     SCHIMP.  Synops.  98  (1860),  et  2  ed.  103  (1876).     BERK.  Handb.  br.  m.  272  (1863). 

MILDE   Bry.    siles.  77  (1869).     HUSN.  Mouss.  nord-ouest  58   (1873).     JURATZ.   Laubm. 

oesterr. — ung.  56  (1882). 

Thysanomitrium  pyriforme  RABENH.  Deutsch.  Kr.  fl.  ii,  S.  3,  149  (1848). 
Dicranum  turfacenm  C.  MUELL.  Synops.  i,  399  (1849). 
Dicr.  pinetorum  GRIFF.  Not.  pi.  as.  P.  II,  419  (1849) ;  Ic.  pi.  as.  ii,  T.  94,  f.  3  (1849). 

Dioicous ;  densely  caespitose,  in  large  low  olivaceous  or  bright  green 
or  tawny  tufts ;  stems  ^ — i  in.  high,  erect,  radiculose  only  at  base. 
Leaves  gradually  longer  to  the  coma,  erecto-patent,  lower  lanceolate, 
median  lane,  subulate,  upper  from  an  ovato-lanceolate  base,  suddenly 
setaceous,  denticulate  at  point ;  nerve  £  width  of  base,  sulcate  at  back, 
in  section  of  3  strata  of  cells,  the  two  anterior  lax,  echlorophyllose  ; 
angular  cells  small,  lax,  inconspicuous,  the  rest  small,  quadrate,  very 
minute  above.  Caps,  on  a  pale  flexuose  cygneous  pedicel,  deflexed, 
elliptic-oblong,  pale  olive,  becoming  pale  brown  when  empty;  lid  conico- 
subulate,  red,  darker  at  base,  with  a  broad  annulus  ;  calyptra  blackish 
at  apex ;  teeth  red  at  base,  pale  above,  cleft  to  middle ;  perich.  bracts 
convolute,  sheathing,  gradually  subulate,  laxly  areolate  at  base. 

Male  plant  dwarf;  inner  bracts  from  a  broad  base  shortly 
acuminate. 

HAS. — Heaths,  moorlands  and  by  sides  of  ditches;    not   uncommon.     Fr. 

12—5. 

This  may  be  easily  confused  with  some  forms  of  C.  fragilis,  but  the 
leaves  are  more  irregularly  divergent,  and  with  longer  setaceous  points,  the 
lamina  ends  more  abruptly  above,  and  is  not  narrowed  at  the  base,  the  whole 
dilated  part  being  scarce  J  length  of  leaf.  The  var.  M 'Alien  (C.  Mnllevi 
JURATZKA),  is  only  a  form  with  the  fringe  of  the  calyptra  imperfectly  developed  ; 
Mr.  Holt  finds  it  at  Delamere,  Cheshire,  as  frequent  as  the  ordinary  state. 

2.  CAMPYLOPUS  FRAGILIS  (Dicks.)  Br.  Sch. 

Dioicous ;  pale  green,  densely  leafy  above  ;  leaves  straight,  narrowly 
lanceolate,  very  thin  and  pale  at  base.  Caps,  bent  down  among  the 
leaves,  oval  olivaceous  ;  lid  pale  red.  (T.  XVIII,  A.) 


DICRANACE.E.]  129  [Campylopus. 

SYN. — Bryum  fragile  DICKS.  PI.  cr.  brit.  Fasc.  Ill,  5  (1793).     HOFFM.  Deutsch.  fl.  ii,  38  (1796). 
Dicranum  flcxuosum  ft.  fragile  TURN.  Muse.  hib.  74  (1804).     SM.  Fl.  brit.  iii,  1229  (1804), 

p.p.     HUEB.  Muse.  germ.  267  (1833). 

Dicran.  densum  SCHLEICH.  Cr.  helv.     FUNCK  Cr.  gew.  n.  634. 
Campylopus  penicillatus  BRID.  Mant.  73  (1819),  Bry.  univ.  i,  478  et  815  (1826). 
Camp,  fragilis  BR.   Sen.  Bry.  eur.  f.  41,  p.  4,  t.  2  (1848).     SCHIMP.  Synops.  97  (1860),  et 

2  ed.  102  (1876).     Bry.  eur.  suppl.  f.  i — 2,  p.  4,  t.  i,  f.  6  (1864).     MILDE    Bry.  siles.  77 

(1869).     DE  NOT.  Epil.   bri.  it.  649    (1869).     HOBK.    Syn.    br.   m.    53   (1873).     HUSN. 

Mouss.  nord-ouest  57  (1873).    JURATZ.  Laubm.  oesterr. — ung.  56  (1882). 
Dicr.  Funkii  et  D.  Schleicheri  C.  MUELL.  Synops.  i,  392  (1849). 

Campyl.  densus  BR.  SCH.  op.  c.  6,  t.  5.   WILS.  Bry.  br.  88,  t.  40  (1855).     BERK.  Handb. 

br.  m.  272  (1863). 
Thysanomitrium  flexuosum  R.  saxicola  RABENH.  Deutsch.  Kr.  fl.  ii,  s.  3,  149  (1848). 

Dioicous;  densely  caespitose,  % — 2  in.  high,  pale  or  yellow-green 
above,  pale  brown  with  rufous  tomentum  at  base ;  innovations  pro- 
ducing at  apex  fragile  fasciculate  branches  with  long  narrow  leaves. 
Leaves  very  dense,  erecto-patent,  straight,  fragile  deciduous,  very  thin 
and  whitish  at  base,  with  a  silky  gloss,  narrowly  lanceolate,  shortly 
setaceous,  denticulate  towards  point ;  nerve  lightly  sulcate  at  back,  of 
3  strata  of  cells,  the  two  anterior  large  and  hyaline  ;  cells  at  base  lax 
and  rectangular,  above  the  marginal  are  very  narrow  and  elongated,  the 
rest  subquadrate,  upper  oblong  elliptic.  Caps,  bent  down  among  the 
comal  leaves  by  the  cygneous  seta,  oval  subpyriforum,  lightly  sulcate, 
olivaceous ;  calyp.  sparingly  fringed ;  lid  conico  subulate,  pale  red, 
oblique  ;  annulus  broad.  Male  pi.  resembling  that  of  C.  pyriformis. 
HAB. — Sandstone  rocks  and  turfy  soil  in  subalpine  districts.  Fr.  12 — 4. 

Bantry  (Miss  Hutchins  1808)  !  Muckruss,  Glengariff  and  Howth  (Hunt  1864) !  Alderley 
Edge  and  Frodsham,  Cheshire  (Wilson)  !  Todmorden  (Nowcll  1851)  !  !  Ardingley 
(Mitten) !  Trefriew  (Wood  1863)  !  Mt.  Edgcombe  (Holmes  1867)  !  Ben  Lomond 


(Stirton    1866) !     Ben    Ledi    (Braithwaite    1865)  !  !     Glen    Prosen    (Fergusson    1868)  !  ! 

Hunt   1866) !  !       Cwm    Bycl 
(Whitehead   1878)  !      Kinder   scout,    Derby    (Whitchead    (1881)  !  !      Verwood,    Dorset 


Tarbet,    Gairloch    and     Loch    Goil    head    (Hunt   1866) !  !       Cwm    Bychan,  Harlech 
(Whitehead   1878)  !      Kinder   scout,    Derby    (Whitchead    (1881)  !  ! 
(Rev.  H.  Wood)  \     Arncliff  wood,  Whitby  (Rev.  J.  F.  Crouch  1859) ! 

Plants  more  robust  and  leafy  than  the  last,  and  with  fine  branched  pale 
radicles  on  the  stem,  the  expanded  lamina  narrower  at  base,  J  or  ^  length 
of  leaf,  and  gradually  narrowed  in  the  upper  part  with  coarser  areolation. 
Considerable  variation  in  height  and  density  is  met  with  in  this  species  but 
no  definite  line  can  be  drawn  between  the  two  forms  densus  and  fragilis. 

3.     CAMPYLOPUS  SCHIMPERI  Milde. 

Dioicous ;  in  dense  tufts  interwoven  with  rufous  tomentum  ;  leaves 
erect,  straight,  lanceolate-subulate,  subtubulose,  not  auricled,  the  point 
with  a  few  small  teeth ;  nerve  f  width  of  base ;  basal  cells  lax, 
rectangular.  (T.  XVIII,  C.) 

SVN. — Campylopus  Schimperi  MILDE  Bot.  Zeit.  1864,  Beil.  p.  13.  Hedwigia  1865,  n.  2.  DE 
NOT.  Epil.  bri.  ital.  650  (1869).  BRAITHW.  Journ.  Bot.  1870,  p.  392,  T.  in,  fig.  3. 
HOBK.  Syn.  br.  m.  54  (1873).  SCHIMP.  Synops.  2  ed.  107  (1876).  JURATZ.  Laubm. 
oesterr. — ung.  55  (1882). 

Camp,  compactus  SCHIMP.  in  lit. 


DICRANACE^;.]  130  [Campylopus. 

Dioicous ;  in  very  dense  compact  tufts  interwoven  with  rufous 
tomentum,  fastigiate,  i — 3  in.  high.  Stems  slender,  cuspidate,  light 
silky  green  above,  fuscous  below,  dichotomous,  with  alternate  innova- 
tions which  are  easily  detached.  Leaves  appressed  when  dry,  erecto- 
patent,  straight,  rigid,  narrowly  lanceolate-subulate,  with  a  few  small 
teeth  at  extreme  apex,  channelled  in  the  lower  part,  becoming  tubulose 
above  from  the  incurved  wings  ;  nerve  very  broad,  f  width  of  base,  of 
3 — 4  strata  of  cells,  anterior  lax  and  hyaline,  posterior  turgid  and 
prominent ;  cells  at  extreme  base  brown  and  vesicular,  above  hyaline, 
very  narrow  at  margin,  elongate-rectangular  towards  nerve,  the  upper 
small  and  elliptic.  Perich.  bracts  sheathing,  suddenly  narrowed  into  a 
long  subula ;  caps,  pale,  ovate,  striate,  annulus  broad,  lid  half  length  of 
caps,  beaked,  peristome  small,  the  teeth  cleft  to  middle ;  spores  large. 

HAB. — Highland  mountains,  on  the  ground  and  wet  rocks  ;  not  common. 
Fr.  8. 

Ben  Challum  (McKinlay  1863) !  Ben  Lawers  (Braithwaite  1865)  !  !  Ben  Ledi  and 
Ben  Lomond  (Stirton  1865) !  !  Bressay,  Shetland  (Shaw  1864) !  The  Ptarmigan  mtn. 
(Holt  1880) !  ! 

A  pretty  species,  readily  known  by  its  very  compact  tufts,  closely 
interwoven  with  fine  branched  radicles,  which  principally  arise  from  the  cells 
at  back  of  the  nerve.  The  fruit  has  only  been  found  by  Breidler  on  the 
Venediger  near  Zell-am-see. 

4.    CAMPYLOPUS  SUBULATUS  Schimp. 

Dioicous;  dwarf,  densely  gregarious,  eradiculose ;  leaves  short 
erect,  lanceolate-subulate,  nearly  entire  at  apex,  nerve  half  width  of 
base,  of  4  cell-layers.  (T.  XVIII,  B.) 

SYN.— Campylopus  subulatus  SCHIMP.  in  litt.  ad  Milde.     MILDE  in    RABENH.     Bryoth.  n.  451 

(Jan.  1862)  ;  Bot.  Zeit.  1862,  p.  460.     LINDB.  Muse,  scand.  25  (1879). 

Camp,  brevifolius  SCHIMP.  Bry.  eur.  suppl.  fasc.  i — 2(1864);  Synops.  2  ed.  106  (1876). 
DE  NOT.  Epil.  briol.  ital.  650  (1869).  MILDE  Bry.  siles.  78  (1869).  BRAITHW.  in  Journ. 
Bot.  1870,  p.  393.  HOBK.  Syn.  br.  m.  55  (1873).  HUSN.  Mouss.  nord.ouest.  58  (1873). 
JURATZ.  Laubm.  oesterr. — ung.  55  (1882). 

Orthopus  brevifolius  WULFSB.  in  Christian.  Vid.-selsk.  forh.  1875,  p.  351. 

Dioicous ;  densely  gregarious,  yellow  green  above,  fuscescent 
below,  stem  £  in.  high,  not  radiculose,  simple  or  dichotomous,  with 
caducous  ramuli.  Leaves  enlarging  upward,  erect  short  rigid, 
lanceolate-subulate,  deeply  concave,  not  auricled,  entire  or  with  a  few 
teeth  at  extreme  apex,  which  is  also  sometimes  hyaline  ;  nerve  very 
broad,  ending  with  the  apex,  of  4  strata  of  cells,  the  two  anterior  larger 
and  empty,  two  posterior  smaller,  the  innermost  of  these  least  and 
chlorophyllose ;  cells  at  base  lax,  thin,  very  narrow  at  margin,  rectan- 
gular toward  nerve,  upper  small  rhombic  or  straight.  Seta  straight. 
HAB. — Dry  sandy  or  gravelly  banks  by  roadsides  ;  rare. 


D  ICRANACE.E.]  131  [Campylopus. 

By  the  bridge  on  the  road  between  the  Hunting  tower  and  Cromagloun,  Killarney 
(Schimper  and  Wilson  June  1865) !  Near  Fern,  Brechin  (Fergusson  1876) ! 

This  little  plant  is  a  miniature  of  C.  Schwarzii  from  which  it  can  only  be 
distinguished  by  the  auricled  leaves  in  the  latter  species,  to  which  indeed 
McKinlay's  Perthshire  specimens  referred  here,  truly  belong.  Wulfsberg found 
the  plant  with  young  fruit  Sept.  1874  at  Skcelnes  in  the  island*  of  Varaldsoe, 
Norway,  having  a  straight  seta,  and  on  this  character  alone,  founded  the 
genus  Orthopus  ;  this  cannot  be  maintained,  as  several  exotic  species  have  a 
straight  seta,  and  the  point  is  too  trivial  for  generic  distinction. 

5.     CAMPYLOPUS  SCHWAEZII  Schimp. 

Dioicous  ;  densely  tufted,  scarcely  radiculose  ;  leaves  erecto-patent, 
lanceolate-subulate,  subtubulose,  auricled  at  base,  the  point  with  a  few 
teeth  ;  nerve  f  width  of  base.  (T.  XVIII,  D.) 

SYN. — Campylopus  Schwarzii  SCHIMP.  Bry.  eur.  suppl.  fasc.  i — 2    (1864) ;  Synops.  2  ed.  105 
(1876).     DE  NOT.  Epil.  bri.  ital.  651   (1869).     BRAITHW.  in  Journ.  Bot.  1870,  p.  391. 
LINDB.  Muse,  scand.  25  (1879).    JURATZ.  Laubm.  oesterr. — ung.  58  (1882). 
Camp,  auriculatus  WILS.  MSS. 

Dioicous ;  in  dense  soft  silky  yellowish-green  tufts,  fuscous  below. 
Stems  2 — 3  in.  high,  slender,  repeatedly  dichotomous,  erect,  sparingly 
radiculose.  Leaves  erecto-patent,  straight  or  slightly  secund  above, 
lanceolate-subulate,  concave  below,  subtubular  above,  with  a  few 
small  teeth  at  apex ;  nerve  f  width  of  base,  of  3 — 4  strata  of 
cells,  anterior  lax,  hyaline,  the  rest  small,  chlorophyllose,  often 
producing  fine  reddish  radicles  from  the  back ;  wings  dilated  at  basal 
angles  into  auricles  of  lax  thin  cells,  partly  brown,  partly  hyaline,  the 
cells  above  small,  narrow  and  elongated,  becoming  subquadrate  upward. 
Female  infl.  aggregated  at  top  of  stem,  bracts  dilated  at  base,  suddenly 
subulate. 
HAB. — Alpine  rocks.  Not  common. 

Nephin  mountain,  Mayo  (Moore  1852)  !  !  Connor  hill,  Dingle  and  Carrantuohil  mtn. 
Kerry  (Moore  1857) '  '  Brandon  mtn.  (Schimper  1865)  !  Gap  of  Dunloe  and  Mangerton, 
Killarney  (Hunt  1872)  !  Muckishmtn.,  Donegal  (Moore  1866).  Ben  Ledi,  Ben  Voirlich, 
Balquidder,  Arrochar  and  Dunoon  (McK inlay  1863)  !  Glencoe  and  Kinlochewe,  Ross 
(Hunt  1866)  !  !  Borrowdale,  Cumberland  (Hunt  1871) !  !  Head  of  Clova  (Fergusson)  !  ! 
Hills  behind  Callander  \Stirton  1864).  Inverness,  Sutherland  and  Caithness. 

This  moss  varies  considerably  in  size  and  colour,  and  is  always  more 
slender  and  attenuated  at  the  points  than  the  next  species,  with  the  leaves 
more  distantly  placed  on  the  stem. 

6.     CAMPYLOPUS  SHAWII  Wils. 

Dioicous ;  in  dense  tufts,  with  few  radicles ;  leaves  erecto-patent, 
very  dense,  straight  or  secund  above,  lanceolate-subulate,  with  a  few 
teeth  at  point;  nerve  f  width  of  base.  (T.  XIX,  A.) 

SYN.— Campylopus  Shawn  WILS.  MSS.     BRAITHW.  in  Journ.  Bot.   1870,  p.  389,  T.  in,  {.  i. 
HOBK.  Syn.  br.  m.  51  (1873).     SCHIMP.  Syn.  2  ed.  851  (1876). 


DICRANACE.E.]  132  \Campylopus. 

Dioicous ;  densely  tufted,  fastigiate,  yellowish  green  above,  brown 
below,  i — 3  in.  high  ;  stems  straight,  sparingly  dichotomous,  with  fine 
brown  radicles  at  base  of  leaves.  Leaves  densely  crowded,  erecto- 
patent  straight  rigid,  from  a  somewhat  contracted  auricled  base, 
lanceolate,  longly  subulate,  contracted  below  the  middle  and  involute  in 
a  semitubular  subula,  apex  acute  with  a  few  minute  teeth  ;  nerve  very 
broad,  f — f  width  of  base  and  occupying  all  upper  part,  smooth  at  back, 
of  3  strata  of  cells,  anterior  large  lax  and  hyaline,  the  other  two  small 
and  chlorophyllose ;  angular  cells  very  lax,  hyaline  or  partly  fuscous, 
above  rectangular,  becoming  rhomboido-elliptic  and  oval  upward. 

HAD.— Bogs  near  Loch  Maddy,  N.  Uist  (Shaw   1866),  also  in   S.  Uist   and 
other  Hebridean  Islands. 

Var.  (3.  hamatus  Schimp.  Synops.  I.e. 

Stems  shorter,  more  robust;  leaves  very  densely  crowded,  broader, 
hamato-secund. 

In  N.  Uist  with  the  type. 

This  fine  plant  approaches  very  close  to  C.  Schwarzii,  from  which  it  can 
best  be  distinguished  by  the  tomentose  stem  and  suddenly  inflexed  margin  of 
the  leaves ;  the  hoary  poii  »t  of  C.  atrovirens  separates  it  from  that  species. 

7.    CAMPYLOPUS  FLEXUOSITS  (L.)  End. 

Dioicous;  in  dense  glossy  yellow-green  tufts,  interwoven  with 
rufous  tomentum ;  leaves  lanceolate-subulate,  denticulate  at  point, 
angular  cells  lax,  fuscous,  upper  minute,  elliptic,  incrassate.  Caps,  ovato- 
elliptic,  pale,  sulcate;  lid  conico-subulate,  concolorous.  (T.  XVIII,  F.) 

SYN. — Muscus  trichoides  pediculo  contorto,  D.  Shcrardi.  DOODY,  RAY  Syn.  St.  brit.  2  ed.  app.  339 
(1696). 

Bryum  trichoides,  capitulis  ercctis,  pediculis  intortis  tenuibus  vlrcntibus.  DILL.  Cat.  Giss. 
225  (1719) ;  in  RAY  Syn.  3  ed.  97  (1724). 

Bryum  pilosum  molle,  setis  intortis.  DILL.  Hist.  muse.  373,  t.  47,  f.  33  A — E  (1741)  p.p. 
Bryum  flexuosum  L.  Sp.  pi.  1118  (1753);  Syst.  nat.  ii,  702;  Syst.  veg.  948.     Huns.  Fl. 

angl.  407  (1762).     NECK.  Meth.  muse.  205  (1771).     WITH.  Bot.  arr.  br.  veg.  674  (1776). 

LIGHTF.  Fl.  scot,  ii,  725  (1777).     ROTH  Tent.  fl.  germ.  473  (1788).     HULL  Br.  fl.  P.  II, 

264  (1799).     HOFFM.  Deutsch.  fl.  ii,  384(1796). 
Dicranum  flexuosum  BRID.  Muse.  rec.  II,  P.  I,  163  (1792)  excl.  syn.  Sp.  muse.  I,  208  (1806) ; 

ROTH  Fl.  germ,  ii,  P.  I,  162  (1789).     SWARTZ  Muse.  suec.  34  (1799).     ROEHL.  Moosg. 

deutsch.  339  (1800) ;  Deutsch.  fl.   iii,  69.     SMITH  Fl.  brit.  iii,  1229  (1804) ;  Eng.  Bot.  t. 

1491.     TURN.   Muse.  hib.  74,  p.p.  t.  5,  f.  2a  (1804).     SCHULTZ  Fl.  starg.  298  (1806). 

WEB.  MOHR  Bot.  Tasch.  169  (1807).     SCHWAEG.  Suppl.  I,  P.  I,  189  (1811).     VOIT  Muse. 

herb.  44  (1812).     HOOK.  TAYL.  Muse.  br.  53,  t.  16  (1818),  p.p.     FUNCK  Moost.  31,  t.  21 

(1821).     GRAY  Nat.  arr.  br.  pi.  i,  735  (1821).     HOOK.  Fl.  scot.  P.  2,  132  (1821)  ;  Br.  Fl. 

ii,  38  (1833).     HUEBEN.  Muse.  germ.  267  (1833).     MACK.  Fl.  hib.  P.  2,  22  (1836).     C. 

MUELL.  Syn.  i,  400  (1849).     JENS.  Bry.  dan,  94  (1856). 
Campylopus  flex.  BRID.   Mant.  71   (1819),  Bry.  un.  i,  469  (1826),  p.p.     BR.  SCH.  Bry.  eur. 


fasc.  41,  t.   i   (1847).     WILS.  Bry.  brit.  90,  t.  16  (1855).     SCHIMP.  Synops.  97  (1860),  et 

BERK.  Handb.  br.  m.  273, 
HOBK.  Syn.  br.  m.  52  (1873).     HUSN.  Mous.  nord-ouest  57  (1873).    JURATZ.  Laubm. 


2  ed.  102  (1876).     BERK.  Handb.  br.  m.  273,  t.  23,  f.  4  (1863).     MILDE  Bry.  sil.  76  (1869). 


oesterr. — ung.  54  (1882). 

Thy sanomitrium  flex.  ARN.  Disp.  mouss.  33  (1825),  excl.  var.     RABENH.  Deutsch.  kr.  fl.  ii, 
P.  3,  149  (1848). 


DICRANACE^.]  133  [Campylopus. 

Dioicous ;  in  dense  rigid  tufts,  i — 3  in.  high,  glossy  yellow-green 
above,  reddish  below;  stems  covered  with  rufous  tomentum  arising 
from  back  of  leaf  at  base ;  ramuli  with  small  leaves,  caducous.  Leaves 
crowded,  erecto-patent  or  secund  above,  solid,  lanceolate-subulate, 
channelled,  serrulate  at  apex,  excavate  at  basal  angles  ;  nerve  broad, 
nearly  |  width  of  leaf-base,  occupying  all  the  denticulate  apex,  furrowed 
at  back,  in  section  of  3  strata  of  nearly  equal  cells,  the  two  anterior  lax 
and  empty;  angular  cells  lax  vesicular  brown,  the  rest  subquadrate 
pellucid,  upper  minute,  elliptic,  incrassate.  Perich.  bracts  with  a  long 
convolute  sheathing  base,  suddenly  subulate,  denticulate  at  apex; 
capsules  often  aggregated,  seta  pale  brown,  cygneous,  finally  erect, 
caps,  ovate  rather  gibbous,  pachydermous,  pale  brown,  slightly 
furrowed ;  annulus  broad,  lid  conico-subulate,  oblique,  concolorous ; 
teeth  red,  cleft  to  middle,  with  slender  hyaline  legs.  Male  plant  short, 
inflor.  often  aggregated  at  apex,  bracts  broad,  acuminate. 
HAB. — On  turfy  ground  and  moist  sandstone  rocks.  Fr.  n — 2. 

Var.  ft.  paludosus  Schimp. 

Taller  and  more  slender,  with  fewer  radicles  ;  leaves  more  distant,  more 
elongated,  with  a  narrower  nerve. 

SYN. — Dicranum  palustre   LA  PYL.  BRID.  Bry.  univ.  i,  814. 

Campylopus  paradoxus  p.p.  SCHIMP.  Synops.  2  ed.  108. 
HAB. — Boggy  heaths  in  subalpine  districts. 

Barmouth  (Dr.  Wood   1875) !  in   Herb.    Schimp.  as  C.  paradoxus.     Foot   of  Cader   Idris 
(Pcrclval  1876)  !  !     Near  Llyn  Ogwen  (Boswcll  1874)  !  !     Loch  Maree  (Boswell  1875) !  ! 

Much  more  robust  than  the  ordinary  form  and  3 — 4  in.  high,  with  the 
bases  of  leaves  often  tinted  with  purple. 

8.    CAMPYLOPUS  PARADOXUS  Wils. 

Dioicous ;  in  loose  dull-green  tufts  with  a  few  rufous  radicles. 
Leaves  lanceolate,  shortly  subulate,  rather  obtuse,  the  nerve  lost  in  the 
apex  ;  angular  cells  fuscous,  becoming  smaller  rhomboidal  and  quadrate 
above.  (T.  XVIII,  G.) 

SYN.— Campylopus  paradoxus  WILS.  MSS.  HARDY  in  Berwick.  Nat.  Club  Hist.  1868,  p.  448. 
BRAITHW.  in  Journ.  Bot.  1870,  p.  390,  t.  in,  f.  2.  HOBK.  Syn.  br.  m.  52  (1873). 
SCHIMP.  Synops.  2  ed.  108  (1876). 

Dioicous ;  densely  tufted,  i — 2  in.  high,  dull  deep  green  above,  pale 
fuscous  below ;  stems  fastigiate,  dichotomous  or  with  short  lateral 
ramuli,  and  only  a  few  rufous  sparingly  branched  radicles.  Leaves 
erecto-appressed  when  dry,  erecto-patent  when  moist,  lowest  ovate 
obtuse,  becoming  lanceolate  above,  the  uppermost  shortly  lanceolate- 
subulate,  concave  and  subtubular  in  upper  part,  apex  with  a  few 
irregular  teeth ;  nerve  ^  width  of  base,  vanishing  at  apex,  composed  of 


DICRANACE.E.]  134  [Campylopns. 

3  strata  of  cells,  two  anterior  larger  and  empty,  posterior  small  and 
chlorophyllose ;  basal  cells  rectangular  hyaline,  becoming  fuscous  when 
old,   above    these    smaller    and    quadrate,    becoming    incrassate    and 
irregularly  rhomboidal  and  oval  toward  apex. 
HAB.— Peaty  soil  in  subalpine  districts ;  rare. 

With  Dicranella  heteromalla  in  Trickley  planting,  top  of  Whiteside  hill,  Wooler, 
Northumberland  (Hardy  and  Boyd  1868)  !  !  Ulpha  bog  near  Levens,  Westmoreland 
(Barnes  1868)!  !  Glencoe  (Prof.  Barker  1870).  Morwell  rocks  near  Tavistock,  Devon 
(Holmes  1873)  !  !  Rumbold's  moor,  Ilkley,  Yorks.  (Wesley  1878)  !  !  Summit  of  Kinder 
Scout,  Derby  (Whitehead  1881) !  ! 

Close  as  this  species  stands  to  C  flexuosus,  it  has  so  peculiar  an  aspect, 
that  we  prefer  to  keep  them  separate,  basing  the  distinction  on  the  short 
straight  leaves  of  C.  paradoxus,  with  t he  lamina  distinct  to  the  apex.  The 
original  specimens  are  scarcely  an  inch  in  height,  and  amongst  the  stems 
are  some  with  terminal  rosettes  of  short  ovate  leaves  more  laxly  areolate, 
these  are  probably  abortive  males  ;  Whitehead's  specimens  are  2^  in.  high, 
and  Wesley's  nearly  as  tall.  It  is  probable  that  it  may  eventually  have  to 
sink  to  a  Var.  of  C.  flexuosus. 

9.    CAMPYLOPUS  SETIFOLIUS  Wils. 

Dioicous ;  tall  and  slender,  without  radicles ;  leaves  long,  lax, 
lanceolate-subulate,  serrate,  with  large  inflated  auricles;  caps,  ovato- 
pyriform,  lid  conico-rostellate.  (T.  XVIII,  E.) 

SYN. — Campylopns  setifolius  WILS.  Bry.  br.  89,  t.  40  (1855).  BERK.  Handb.  br.  m.  272  (1863). 
SCHIMP.  Bry.  eur.  suppl.  fasc.  3 — 4,  t.  6  (1866).  Syn.musc.  2ed.  106  (1876).  BRAITHW. 
in  Journ.  Bot.  1870,  p.  391.  HOBK.  Syn.  br.  m.  53  (1873). 

Dioicous ;  laxly  tufted,  glossy  yellowish-green  above,  dark  brown  or 
blackish  below,  stems  slender  3 — 10  in.  high,  dichotomous,  with  a  few 
radicles  only  at  base.  Leaves  rather  distant,  longly  lanceolate-subulate, 
with  large  inflated  auricles,  very  concave  and  subtubulose,  serrated 
toward  apex,  subula  formed  of  the  excurrent  nerve,  hispid  at  back  ; 
basal  cells  hexagono-rectang.  empty,  upper  rhombic,  chlorophyllose; 
nerve  half  width  of  base,  of  3  strata  of  cells,  outer  minute  chlorophyllose, 
middle  equal  hyaline,  inner  twice  as  large  hyaline.  Fruit  aggregated, 
about  4  together,  perich.  bracts  oblong,  convolute  sheathing,  suddenly 
narrowed  into  a  setaceous  subula ;  seta  short  flexuose,  reddish  brown, 
cygneous  when  moist ;  caps,  suberect,  pale  brown,  ovato-pyriform, 
becoming  cylindraceous  when  old,  sulcate,  annulus  very  broad,  breaking 
up,  lid  conico-rostellate,  half  length  of  capsule,  per.  erect,  dark  reddish- 
brown,  cleft  above  half  way,  the  legs  yellow,  spores  pale. 

Male  plant  slender,  infl.  3 — 4  in   a  capitulum,  gemmiform,  outer 
bracts  ovate,  subulate,  inner  ovate-oblong,  muticous,  nerveless. 
HAB. — Rocks  among  grass  and  heath  ;    rare.  Fr.  6. 

Carrig  mountain,  Dunkerron  (Taylor  1836).  Powerscourt  and  near  Seven  Churches, 
Wicklow  (Moore  1864)  !  !  Cromaglown  in  fruit,  intermixed  with  C.  atrovirens  and  C. 


DicRANACE.fi.]  135  [Campylopus. 

flcxuosus  in  fruit  (Capt.  Hutton  1865) !  Eagle's  nest,  Pass  of  Dunloe  and  Kenmare 
Road,  Killarney  (Carrington  and  Hunt  1861) !  !  Kylemore  Castle,  Connemara  (Moore 
1870) !  !  Sligichan,  Skye  (Hunt  1863)  !  !  Island  of  Lewis,  Hebrides  (Moore  1868) ! 
Cwm  Bychan  near  Harlech,  in  fruit  (George  1878). 

The  fertile  plant  is  shorter  and  more  densely  leafy  than  the  sterile  or 
male,  and  the  species  is  easily  recognized  by  the  large  inflated  auricles,  and 
serrated  hispid  subula. 

10.    CAMPYLOPUS  ATROVIRENS  De  Not. 

Dioicous;  in  dense  dark  green  cushions;  leaves  lanceolate-subulate, 
auricled,  ending  in  rough  white  points.  (T.  XIX,  B.) 

SYN. — Dicranum  flexuosum  y,  piliferum  TURN.  Muse.  hib.  74,  p.p.  t.  5,  f.  2  b,c.  (1804) 
Dicr.  flexiiosum  R.  nigro-viride  HOOK.  TAY.  Muse.  brit.  2  ed.  94,  p.p.  (1827). 
Campylcptis  longipilus  BRID.  Bry.  univ.  i,  477  (1826)  p.p.     WILS.  Bry.  brit.  go,  t.  40  (1855). 

BERK.   Handb.  br.  m.  273   (1863).     SCHIMP.  Bry.  eur.  suppl.  fasc.   i — 2,  t.  3  (1864)  ; 

Synops.  2  ed.  103  (1876).    JURATZ.  Laubm.  oesterr. — ung.  58  (1882). 
Campylopus  atromrens  DE  NOT.  Syll.  muse.  221   (1838) ;  Epil.  bri.  ital.  648  (1869).     BR. 

SCHIMP.  Bry.  eur.  fasc.  41,  p.  6,  t.  4  (1847),  P-P-     Synops.  98  (1860).     SPRUCE  in  Ann. 

mag.  Nat.  hist.  2  ser.  iii,  483   (1849).     BRAITHW.  in  Journ.  Bot.   1870,  p.  387.     HOBK. 

Syn.  br.  m.  50  (1873).     HUSN.  Mouss.  nord-ouest  59  (1873). 
Dicranum  atromrens  C.  MUELL.  Syn.  i,  414  (1849). 

Dioicous ;  in  dense  silky  cushions,  lurid  green  or  yellow-green 
above,  black  below ;  stems  slender,  i — 5  in.  high,  repeatedly  dichoto- 
mous,  dense-leaved,  sparingly  radiculose.  Leaves  gradually  larger 
towards  apex,  erecto-patent,  lanceolate,  canaliculate-subulate,  straight ; 
nerve  dilated,  J  width  of  base,  sulcate  at  back,  excurrent  in  a  long  hoary 
denticulate  arista,  in  section  of  4  strata  of  cells,  the  anterior  and 
posterior  rather  larger  than  the  two  median  layers ;  basal  cells  lax 
subrectangular,  those  of  auricles  vesicular  lax  brown,  upper  oblong  and 
vermicular. 
HAD. — Wet  rocks  and  peaty  ground  on  all  our  mountains  ;  common.  Near 

Penzance  (Curnow) !  ! 

Var.  (3.  falcatus  Braithw. 

Stem  short,  more  robust ;    leaves   dense,  broader,   falcato-secund,  cir- 
cinate,  very  concave. 
HAS. — Connemara  (Prof.  Barker  1868)  !  ! 

A  form  parallel  to  the  variety  of  C.  Shawii.  The  comal  leaves  of  the 
ordinary  state  are  frequently  more  or  less  secund,  and  slender  flagelliform 
ramuli  are  also  common.  When  the  fragile  hair  points  are  lost,  it  is  best  to 
examine  the  young  apical  leaves,  on  which  they  are  usually  retained,  other- 
wise there  might  be  a  difficulty  in  the  determination  of  the  species. 

ii.     CAMPYLOPUS  INTROFLEXUS  (Hedw.}  End. 
Dioicous;  olivaceous  green,  rigid;   leaves  not  auricled,  lanceolate 
subulate,  terminating  in  a  spinulose  hoary  point,  basal  cells  hyaline ; 
capsules  aggregated,  rugulose  at  base.     (T.  XIX,  C.) 

gYN> Dicranum  introflexum  HEDW.  Sp.  muse.  147,  t.  29  (1801).     SCHWAEG.  Suppl.  I,  P.  I,  190 

(1811).     C.  MUELL.  Synops.  i,  405  (1849). 
Dicr.Jlexuosum  y.  piliferum  TURN.  Muse.  hib.  p.p. 


DICRANACE.E.]  136  [Campylopus. 

Dicr.  capitiflorum  P.  BEAUV.  Prodr.  53  (1805). 

Campylopus  intrqflexus  BRID.  Mant.  72  (1819)  ;  Bry.  univ.  i,  472.     MITT.   Journ.  Lin.    soc. 

xii,  84  (1869).     BRAITHW.  in  Journ.  Bot.  1870,  p.  388.     HOBK.  Syn.  br.  m.  50  (1873). 
Camp,  pilifcr  BRID.  Mant.  72  (1819). 
Camp,  longipilus  BRID.  Bry.  un.  i,  477,  p.p.     DE  NOT.  Syll.  muse.  221  (1838).     WILS.  Bry. 

br.  p.p.    SCHIMP.  Bry.  eur.  fasc.  41,  t.  5,  et  Synops.  99,  p.p. 
Camp,  poly trichoides  DE  NOT.  Syll.  muse.  222  (1838);  Epil.  bri.  ital.  645  (1869).     BERK. 

Handb.  br.  m.  273  (1863).     HUSN.    Mouss.   nord-ouest  58    (1873).     SCHIMP.    Bry.    eur. 

suppl.  fasc.  i — 2,  t.  4  (1864),  Synops.  2  ed.  104  (1876).    JURATZ.  Laubm.  oesterr. — ung. 

57  (1882). 

Dicran.  longipilum  C.  MUELL.  Synops.  i,  411  (1849). 
Dlcran.  erlcetorum  MITT.  Journ.  Lin.  soc.  i,  suppl.  20  (1859). 

Dioicous ;  in  crowded  gregarious  tufts,  olive  green  above,  reddish 
brown  below,  not  unfrequently  scorched  at  tips,  somewhat  glossy ; 
stems  i — 2  in.  high,  rigid,  erect,  dichotomous  or  fasciculate,  tomentose 
with  scattered  radicles.  Leaves  erecto-patent,  subimbricate  when  dry, 
lanceolate-subulate,  channelled,  uppermost  broader,  the  margin  inflexed 
and  semitubular  toward  apex;  nerve  about  f  width  of  base,  lamelligerous 
at  back,  ending  in  a  diaphanous  strongly  spinuloso-denticulate  hair- 
point,  below  of  4  strata  of  cells,  the  anterior  one  larger  and  empty ;  the 
rest  chlorophyllose ;  basal  cells  hyaline,  hexagono-rectangular,  passing 
obliquely  toward  margin  as  they  ascend,  angular  cells  few  large  brown, 
above  small,  chlorophyllose,  obliquely  rhomboid-oval.  Perich.  bracts 
convolute,  oblong,  subulate  at  apex  with  the  narrow  excurrent  nerve, 
cells  thin  elongated  pellucid  ;  capsules  aggregated,  seta  short,  flexuose, 
pale  brown ;  capsule  oval,  rather  unequal,  olivaceous,  smooth, 
transversely  rugulose  and  darker  at  base,  lid  oblique  rostellate,  fuscous  ; 
peristome  orange  red. 

Male  plant  short,  simple,  the  inflorescence  in  a  capitulum,  inner 
bracts  colored,  broad,  convolute,  with  short  points,  nerve  obsolete. 
HAS. — Heaths,  stony  ground  and  rocks  ;  not  common. 

Kymyal  cliff,  Tregarnow  cliff,  and  Trungle  moor,  Cornwall  (Curnow  1861) !  !  Cromaglown, 
Killarney  (Carrington  1861)  !  Glengariff  (Hunt  1864)  !  !  Barmouth  (Whitchead, 
1877)  !  !  Jersey  (Holmes  1873) !  ! 

The  discovery  of  the  fruit  of  this  plant  near  Oporto  by  Mr.  Isaac 
Newton  in  1879,  confirms  the  accuracy  of  its  reference  to  the  tropical  C. 
introflexus,  the  only  difference  we  find  being  that  in  the  European  forms  the 
arista  is  straight,  but  in  the  southern  it  is  generally  reflexed  at  an  angle 
from  the  lamina  ;  the  chief  peculiarity  of  the  species  is  seen  in  the  male 
plants,  in  which  the  leaves  on  the  innovations  are  quite  short  and  lax, 
gradually  becoming  more  elongated  and  crowded  to  the  coma,  and  thus 
strongly  resembling  a  Polytrichum,  e.g.,  P.  pilife mm. 

12.     CAMPYLOPUS  BREVIPILUS  BY.  Sch. 

Dioicous  ;  densely  tufted,  the  stems  almost  free  from  radicles,  with 
fasciculate-leaved  innovations  ;  leaves  narrowly  lanceolate-subulate,  the 


DICRANACE^;.]  137  [Dicranoweissia. 

point     denticulate,    hyaline,     basal     cells     quadrate,     hyaline,     upper 
rhomboidal,  flexuose.     (T.  XIX,  D.) 

Svx.—Campylopus  brevipilus  BR.  SCH.  Bry.  eur.  fasc.  41,  p.  7,  t.  4  (1847),  et  Suppl.  fasc.  i — 2, 
t.  2,  f.  i—2  (1864).  WILS.  Bry.  br.  91,  t.  40  (1855).  JENS.  Bry.  dan.  95  (1856).  SCHIMP. 
Syn.  100  (1860),  2  ed.  106  (1876).  BERK.  Handb.  br.  m.  274  (1863).  DE  NOT.  Epil.  bri. 
ital.  647  (1869).  MILDE  Bry.  siles.  78  (1869).  HOBK.  Syn.  br.  m.  50  (1873).  HUSN. 
Mouss.  nord-ouest  58  (1873). 

Dlcranum  brevipilum  C.  MUELL.  Syn.  i.  412  (1849). 
Camp,  decipiens  et  Molkenbocri  VAN  DER  SANDE  LAC. 

Dioicous ;  in  dense  tufts  cohering  only  at  base,  glossy  yellow-green 
above,  fuscescent  below;  stems  slender,  fragile,  i — 3  in.  high,  with 
scarcely  any  radicles,  fasciculate-leaved.  Leaves  lanceolate  below, 
becoming  lanceolate-subulate  above,  and  forming  a  coma,  tipped  with  a 
short  denticulate  hyaline  point,  the  margin  recurved  above  the  middle  ; 
nerve  ^  width  of  base,  in  section  of  3  strata  of  narrow  cells,  the  central 
larger  and  hyaline,  back  of  apex  roughish ;  auricles  generally  slightly 
developed,  basal  cells  rectangular,  hyaline  or  partly  fuscous,  upper 
narrow  rhomboidal,  flexuose,  marginal  very  narrow.  Bracts  of  female 
infl.  broad,  sheathing,  the  margin  subrevolute,  nerve  narrow. 
HAB. — Moist  heaths;  not  rare. 

Prestwick  Carr,  Northumb.  (Thornhill  1813)  !  Clonmel  and  Killarney  (Carrington  1860) 
Skipwith  common,  York  and  Oakmere  (Wilson  1863)  !  !  Glengariff  and  Arran  (Hunt 
1864) !  !  Trungle  moor,  Penzance  (Curnow  1865) !  !  Pilmoor  (Baker  1867).  Trowls- 
worthy  bog,  Devon  (Holmes).  Bloxworth,  Dorset  (Rev.  H.  Wood).  Pressridge  warren, 
Sussex  and  Matley,  New  Forest  (Da-vies)  !  !  Howth  and  Kylemore  (D.  Orr).  Bressay, 
Shetland  (McKinlay  1864).  North  Uist  (Shaw  1866)  !  Glen  Prosen  (Fergusson). 
Groudale,  I.  of  Man  (Holt  1881)  !  ! 

This  species  differs  both  in  habit  and  areolation  from  all  the  others,  the 
upper  cells  having  a  distinct  sigmoid  curve,  and  the  rough  back  of  the  leaf 
near  the  apex  must  not  be  overlooked.  The  hoary  point  to  the  leaf  is 
very  variable  and  sometimes  is  reduced  to  2 — 3  cells  or  may  be  quite 
wanting. 

12.     DICRANOWEISSIA  LINDB. 

(Oefvers.  K.  vet.  akad.  foerh.  1864,  p.  230.) 

Plants  tufted,  fastigiate ;  leaves  lanceolate,  curled  when  dry, 
smooth,  with  distinct  basal  angular  cells.  Perichaetium  distinct, 
sheathing;  capsule  erect,  smooth,  calyptra  cucullate,  teeth  of  per. 
erect,  lanceolate,  with  10  or  12  striate  articulations,  trabeculate  internally, 
cleft  at  apex  or  undivided.  Der. — A  compound  of  the  two  genera. 

This  is  wisely  separated  from  the  old  genus  Weissia,  as  it  is  clear  its 
affinities  are  much  closer  to  Dicranum,  of  which  it  may  perhaps  be  regarded 
as  a  section. 

CLAVIS  TO  THE  SPECIES. 

Capsule  elongate-oval,  annulate ;  leaves  lanceolate,  margins  reflexed.  cirrata. 

Capsule  ovate,  exannulate  ;  leaves  lanceolate-subulate,  margins  plane.  crispula. 


DICRANACE^.]  138  [Dicranoweissia. 

i.    DICRANOWEISSIA  CIRRATA  (L.)  Lindb. 

Autoicous  ;  laxly  pulvinate,  dichotomous ;  leaves  lanceolate,  rather 
obtuse  with  revolute  margins,  angular  cells  indistinct ;  capsule  sub- 
cylindric,  annulate.  (T.  XIX,  F.) 

SYN. — Bryum  trichoides  exile,  erectis  capitulis  in  pediculis  longioribus  rubris  DILL.   Cat.   Giss. 

224  (1719),  et  in  RAY  Syn.  3  ed.  97,  n.  25  (1724). 

Bryum  cirratum  et  stellatum,  tenuioribus  foliis  DILL.  Hist.  muse.  379,  t.  48,  f.  42  (1741). 
Mnium  cirratum   L.    Sp.  pi.   mi    (1753)  5    Syst.  Veg.  946.     OEDER   Fl.  dan.  t.  538,  f.  4 

(1770).     POLL.   PI.  palat.  n.   986,  f.  9  (1777).     WITH.  Bot.   arr.  br.  veg.  ii,  666  (1776). 

HULL  Br.  fl.  P.  II,  250  (1799). 
Bryum  cirr.  HUDS.  Fl.  angl.  409  (1762) ;  NECK.   Meth.   muse.  213   (1771).     LIGHTF.   Fl. 

scot,  ii,  728  (1776).     HOFFM.  Deutsch.  fl.  ii,  54  (1796).     ABBOT  Fl.  Bedf.  238  (1798). 
Hypnum  cirr.  WEISS  Cr.  Gott.  207  (1770). 

Leersia  cirr.  WILLD.  Pr.  fl.  berol.  n.  902  (1787).     ROTH  Tent.  Fl.  germ  i,  455  (1788). 
Dicranum  cirr.  TIMM  Fl.  megap.  n.  783  (1788). 
Gymnostomum  cirr.  ScHRANK^Baiers.  Fl.  ii,  436  (1789). 
Afzelia  cirr.  EHRH.  PI.  crypt,  n.  232  (1790). 
Encalypta  cirr.  SWARTZ  Muse.  suec.  25  (1799). 
Weissia  Dicksoni  WILLD.  op.  c.  n.  907.     ROTH  op.   c.  456.     HOFFM.  op.   c.   32.     BRID. 

Muse.  rec.  II,  P.  I,  72  (1798). 
Grimmia  Dicks.   ROTH  op.   c.  iii,  P.  I,  143   (1793).     SM.  Fl.  brit.  1188  (1804) ;  Eng.  bot. 

t.  1420.     TURN.  Muse.  hib.  27  (1804). 
Barbula  cirr.  BRID.  op.  c.  203.     ROEHL.  Moosg.  deutsch.  230  (1800).     P.   BEAUV.  Prodr. 

92  (1805). 
Grimmia  cirr.  SCHRAD.  Journ.  bot.  1799,   II,   58.     WEB.  MOHR  Bot.  Tasch.    134  (1807). 

SCHKUHR  Deutsch.  Kr.  gew.  P.  II,  54,  t.  27  (1810).     SM.  Comp.  fl.  brit.  181  (1825). 
Weissia  cirr.  HEDW.  Sp.  muse.  69,  t.  12,  f.  7 — 12  (1801).     BRID.  Sp.  muse.   I,   109  (1806)  ; 

Mant.  41  (1819) ;  Bryuniv.  i,  343  (1826).     SCHWAEG.  Suppl.  I,  P.  1,75  (1811).     WAHLENB. 

Fl.  lap.  303  (1812) ;  Fl.  carp.  340  (1814).     ROEHL.  Deutsch.  fl.  iii,  49  (1813)  ;  Ann.  wett. 

ges.  iii,  104.     MART.  Fl.  cr.  erl.  in  (1817).     HOOK.  TAYL.  Muse.   br.  46,    t.    15   (1818). 

SCHULTZ  Fl.  starg.  suppl.  67  (1819).     FUNCK  Moost.   15,  t.  10  (1821).     GRAY  Nat.  arr. 

br.  pi.  i,  731  (1821).     HOOK.    Fl.  scot.   P.   II,   130   (1821);  Br.  Fl.  ii,  21  (1833).     NEES 

HORNSCH.  Bry.  germ,  ii,  P.  II,  61,  t.  29, f.  14  (1831).     HUEBEN.  muse.  germ.  127  (1833). 

MACK.  Fl.  hib.  P.  2,  p.  14  (1836).     DE  NOT.  Syll.  232  (1838)  ;  Epil.  bri.  ital.  596  (1869). 

BR.  SCH.  Bry.  eur.  fasc.  33 — 36  p.  9,  t.  6  (1846).    WILS.  Bry.  br.  47,  t.  15  (1855).    RABENH. 

Deutsch.  Kr.  fl.  ii,  S.  3,  127  (1848).     JENS.  Bry.  dan.  120  (1856).     SCHIMP.  Synops.  56 

(1860).     BERK.  Handb.  br.  m.  292  (1863).     HOBK.  Syn.  br.  m.  34  (1873).     HUSN.  Mouss. 

nord-ouest  43  (1873). 
Blindia  cirr.  C.  MUELL.  Syn.  {1,585  (1851). 

Dicranoweissia  cirr.  LINDB.  loc.  cit.  et  Muse,  scand.  25  (1879).  MILDE  Bry. 
siles.  49  (1869).  SCHIMP.  Syn.  2  ed.  55  (1876).  JURATZ.  Laubm.  oesterr. — ung.  21 
(1882). 

Autoicous ;  laxly  pulvinate,  soft,  dull  or  yellowish  green  above, 
brown  or  blackish  below;  stems  flaccid,  dichotomous,  slightly 
radiculose,  i — i  in.  high.  Leaves  curled,  patulous,  from  a  longish 
concave  base,  gradually  lineal-lanceolate,  rather  obtuse,  smooth,  entire, 
revolute  at  margin;  nerve  vanishing  just  below  apex;  cells  at  base 
transp.  rectangular,  above  incrassate  roundish  quadrate,  at  angles  less 
distinct,  lax  quadrate.  Perich.  bracts  shorter,  broader,  sheathing, 
nerve  thin  ;  caps,  on  a  pale  seta,  erect,  subcylindraceous,  leptodermous, 
pale  brown  with  a  red  mouth,  annulus  of  2 — 3  rows  of  cells ;  lid  pale  red 
shorter  than  caps,  subulate,  slightly  oblique;  teeth  lanceolate,  undivided, 
purple  below,  finely  papillose  and  pale  above,  inserted  below  the  mouth. 


DICRANACE^E.]  139  [Dicmnoweissia. 

Male  infl.  gemmaceous,  below  fern,  the  bracts  concave,  ovate, 
obtuse. 

HAB. — On  old  wooden  fences,  tree  roots,  or  sometimes  on  rocks  ;  common. 

Fr.  12—3. 

The  capsule  varies  in  length  and  occasionally  is  found  rather  curved  or 
unsymmetric ;  Oncoplioms  Bmntoni  appears  to  have  been  confounded  with  this 
by  the  old  authors,  but  is  readily  distinguished  by  the  different  peristome  and 
the  denticulate  apex  of  the  leaf. 

2.     DICRANOWEISSIA  CRISPULA  (Hedw.)  Lindb. 
Autoicous ;    more    densely   casspitose ;    leaves   lanceolate-subulate, 
acute  with  plane  margins,  angular  cells  quadrate,  brown  ;  capsule  oval, 
not  annulate.     (T.  XIX,  E.) 

SYN. — Weissia  crispula  HEDW.  Sp.  muse.  68,  t.  12,  f.  i — 6  (1801).  BRID.  Sp.  muse.  I,  no 
(1806);  Mant.  42  (1819);  Bry.  univ.  i,  346  (1826).  SCHWAEG.  Suppl.  I,  P.  I,  75  (1811). 
ROEHL.  Deutsch.fl.  iii,  49  (1813) ;  Ann.  Wett.  ges.  iii,  103.  HOOK.  TAYL.  Muse.  br.  46, 
t.  12  (1818).  FUNCK  Moost.  15,  t.  10  (1821).  GRAY  Nat.  arr.  br.  pi.  i,  731  (1821).  HOOK. 
Fl.  scot,  P.  II,  131  (1821)  ;  Br.  Fl.  ii,  22  (1833).  DUBY  Bot.  gall,  ii,  571  (1830).  NEES 
HSCH.  Bry.  germ,  ii,  P.  II,  65,  t.  30.  f.  15  (1831).  HUEBEN.  Muse.  germ.  129  (1833). 
DE  NOT.  Syll.  230  (1838)  ;  Epil.  bri.  ital.  595  (1869).  BR.  SCH.  Bry.  eur.  fasc.  33—36, 
p.  9,  t.  3  (1846).  RABENH.  Deutsch.  kr.  fl.  ii,  8.3,  127  (1848).  WILS.  Bry.  brit.  48,  t. 
15  (1855).  SCHIMP.  Syn.  55  (1860).  BERK.  Handb.  br.  m.  293  (1863).  HOBK.  Syn.  br. 
m.  34  (1873).  HUSN.  Mouss.  nord-ouest  43  (1873). 

Grimmia  crisp.  SM.  Fl.  brit.  1192  (1804) ;  Eng.  Bot.  t.  2203.  TURN.  Muse.  hib.  28  (1804). 
WEB.  MOHR  Bot.  Tasch.  134  (1807).  SCHKUHR  Deutsch.  kr.  gew.  P.  II,  53,  t.  23  (1810). 
VOIT  Muse.  herb.  30  (1812).  SM.  Comp.  fl.  brit.  181  (1825). 

Weissia,  cirrhata  ft.  crispula  WAHLENB.  Fl.  lapp.  323  (1812).     HARTM.  Skand.  Fl.  388. 
Weissia  falcata  NEES  HSCH.  Bry.  germ,  ii,  P.  II,  71,  t.  31,  f.  16  (1831). 
Blindia  crisp.  C.  MUELL.  Syn.  ii,  584  (1851). 

Dicranowcissia  crisp.  LINDB.  loc.  cit,  et  Muse,  scand.  25  (1879).  MILDE  Bry.  siles.  49 
(1869).  SCHIMP.  Syn.  2  ed.  54  (1876).  JURATZ.  Laubm.  oesterr. — ung.  19  (1882). 

Autoicous  ;  in  densely  pulvinate  soft  yellow-green  tufts,  dark  brown 
or  blackish  below,  i — 2  in.  high.  Leaves  divergent,  generally  secund 
above,  crisped  when  dry,  flexuose  when  moist,  from  a  longer,  broad 
concave  base,  lanceolate-subulate,  quite  entire,  the  margin  not  revolute  ; 
nerve  vanishing  in  the  long  acute  point ;  areolation  denser,  papillose  at 
back  toward  apex,  basal  cells  narrow  and  elongated,  angular  distinct, 
brown,  quadrate,  upper  roundish  quadrate,  chlorophyllose.  Perich. 
bracts  sheathing,  convolute,  pale,  oblong  obtuse  ;  caps,  on  a  longer  pale 
seta,  erect,  leptodermous,  at  first  pale  brown  and  narrowly  oblong, 
afterwards  reddish  brown,  broadly  ovate  and  wrinkled,  slightly  con- 
tracted at  mouth,  exannulate ;  lid  conico-subulate,  oblique,  shorter 
than  capsule  ;  teeth  lanceolate,  purple,  with  10 — 12  joints,  papillose, 
often  cleft  and  paler  at  point. 

Male  infl.  gemmaceous,  at  apex  of  innov.  bracts  ovate,  obtuse. 
HAB. — Mountain  rocks.  Fr.  5 — 7. 

Ben    Lawers     and    Craig    Chailleach  (Hooker) !  !      Anglesea    (Davics).      Pentland   hills 
(Arnott).    Snowdon  (Wilson)  !  !     Braemar  (Hunt)  \  ! 


DICRANACE^.]  140  [Dicranwn. 

Readily  distinguished  from  the  last  by  its  longer  acute  leaves,  distinct 
perichaetium  and  shorter  capsule,  and  it  is  also  confined  to  the  more  elevated 
mountains.  When  growing  exposed  to  the  constant  drip  of  snow  water  it 
assumes  a  black  colour  and  the  leaves  and  capsules  are  shorter,  it  then 
becomes  the  var.  atrata  NEES  HSCH.  and  connects  itself  to  D.  compacta 
(SCHLEICH.),  which  has  been  recorded  from  Ben  Lawers,  but  the  specimen 
we  have  received  is  not  the  plant;  D.  compacta  also  is  properly  regarded  by 
Lindberg  as  a  var.  of  D.  crispula. 

DICRANUM     HEDW. 

Fund.  muse.  II,  91  (1782). 

Plants  usually  tall  and  handsome,  dichotomous,  rooting  only  at 
base,  or  the  whole  stem  covered  with  radicular  tomentum.  Leaves 
patent  or  falcato-secund,  smooth  or  rarely  papillose,  glossy  or  opake, 
long  and  lanceolate  or  lanceolate-subulate  ;  nerve  semiterete  or  more  or 
less  dilated ;  areolation  narrow  and  elongated  rectangular  in  the  lower 
part,  with  the  angular  cells  quadrate  dilated  vesicular  and  colored 
orange  or  brown,  above  lineal-oblong  quadrate  or  elliptic,  often 
flexuose ;  perich.  bracts  sheathing.  Caps,  erect  or  cernuous,  rarely 
striate,  with  a  short  equal  neck,  rarely  strumose,  generally  annulate  ; 
lid  rostrate  ;  teeth  16,  orange  or  deep  red,  confluent  at  base,  cleft  half 
way  or  more  into  2  —  rarely  3  —  unequal  subulate  legs,  striolate  at 
base,  trabeculate  internally  ;  calyptra  cucullate,  rostrate,  usually  falling 
with  the  lid.  Male  infl.  gemmaceous.  Inhabiting  the  ground,  rocks  or 
rarely  trunks  of  trees.  Deriv. — SiKpavov  a  fork. 

This  very  natural  genus  comprises  about  100  species,  varying 
considerably  in  size ;  and  also  in  general  aspect.  As  originally  established 
by  Hedwig,  when  the  peristome  was  regarded  as  affording  almost  the  sole 
essential  character,  it  included  a  miscellaneous  collection — Ceratodon  purp., 
Leucobryum,  Grimmia  acicularis,  Dicranella  heteromalla,  Dichodontium  pellucidum 
and  Dicranum  scoparium — the  last  being  retained  as  the  type  of  the  genus. 
In  the  highest  developed  forms  D.  undulatum,  Bonjeani,  scoparium,  &c. 
constituting  Lindberg's  section  Eudicranum,  the  longitudinal  walls  of  the 
leaf-cells  will  be  seen,  by  proper  amplification,  to  be  perforated  by  fine  pores, 
by  means  of  which  the  cells  communicate ;  these  are  wanting  in  the  other 
sections,  and  in  the  few  species  which  have  papillose  leaves  as  D.  montanum, 
the  papillae  are  simple  conical  elevations  of  the  cell-cuticle  ;  the  vesicular 
colored  angular  cells  are  the  most  characteristic  feature  in  this  genus. 

On  the  felted  mass  of  radicles  which  clothes  the  stem  of  several  species, 
small  tubercles  form  which  develope  into  male  gemmae,  and  in  D.  scoparium 
grow  on  into  independent  male  plants. 

The  other  European  species  are  D.  hyperboreum,  Anderssonii,  elatum, 
undulatum,  fragilifolium,  strictum,  Mmhlenbeckii,  brevifolium,  fulvum,  albicans  and 
comptum  ;  of  these  D.  undulatum  is  a  species  which  ought  to  occur  here,  being 
found  in  alpine  woods  throughout  Europe  and  N.  America,  but  although  it 
has  been  several  times  reported  from  various  localities,  no  genuine  specimen 


DICRANACE.E.] 


[Dicranum. 


has  yet  come  before  us ;  it  is  closely  allied  to  D.  Bonjeani,  but  has  aggregated 
setae  like  D.  majus. 

Several  species  are  extremely  variable,  and  again  others  are  very 
much  alike,  so  that  considerable  difficulty  is  experienced  by  beginners  in 
their  correct  determination  ;  this  will  be  best  overcome  by  a  careful  study  of 
the  areolation  of  the  leaf  and  of  transverse  sections  of  the  nerve. 


CLAVIS  TO  THE  SPECIES. 

Sect.  i.  ARCTOA.     Plants  autoicous,  radiculose  only  at  base ;  leaves  lanc.-subulate,  entire. 
Capsule  small  with  a  tapering  or  strumose  neck. 
Capsule  erect,  neck  tapering. 
Capsule  cernuous,  neck  strumulose. 
Capsule  short  ovate. 

Leaves  flexuose  patent. 
Leaves  falcato-secund. 
Capsule  oblongo-cylindric. 

Leaves  falcato-secund,  lid  long-beaked. 
Leaves  erecto-patent,  lid  short-beaked. 
Sect.  2.    EUDICRANUM.       Plants  robust,  dioicous  or  pseud-autoicous,  tomentose  ;  leaves 
lanceolate,  the  longitudinal  walls  of  their  cells  communicating  by  fine  pores.     Caps,  cernuous, 
cylindraceous,  more  or  less  arcuate. 
Leaves  not  undulate. 

Setas  aggregated,  nerve  serrated  at  back  towards  apex. 
Setas  solitary,  nerve  4-winged  at  back  above. 
Leaves  transversely  undulate. 

Leaves  smooth  at  back,  gradually  elongated. 

Upper  cells  elongated,  nerve  smooth  at  back. 

Upper  cells  small  quadrate,  nerve  serrate  at  back  above. 

Leaves  papillose  at  back,  short  and  broad,  suddenly  acuminate. 

Sect.  3.  APORODICTYON.     Plants  of  medium  size,  radiculose  ;  leaves  lanc.-subulate,  their 

cell-walls  not  interrupted  by  pores.     Caps,  cernuous  or  erect,  cylindraceous,  curved  or  symmetric. 

Capsule  cernuous,  curved. 

Leaves  patent,  quite  entire. 
Leaves  secund,  serrulate. 

Nerve  f — i  width  of  base,  forming  all  apex. 
Nerve  £  width  of  base,  not  excurrent. 
Capsule  erect,  symmetric. 

Leaves  curled  when  dry,  nerve  vanishing  at  the  serrulate  apex. 
Subula  short,  papillose  at  back. 
Subula  elongated,  smooth  at  back. 
Leaves  scarce  altered  by  drying,  nerve  excurrent. 
Leaves  gradually  narrowed  into  a  subula. 

Apex  quite  entire,  elongated  ;  lower  cells  incrassate. 
Apex  quite  entire,  broken  off;  lower  cells  lax,  hyaline. 
Apex  serrulate,  longly  subulate  ;  lower  cells  lax,  very  long.  Santeri. 
Leaves  suddenly  narrowed  into  a  very  long  setaceous  point. 
Leaves  falcato  secund. 

Nerve  half  width  of  base,  serrate  at  back.  longifolittm. 

Nerve  4  width  of  base,  smooth  at  back.  uncinatum. 

Leaves  erecto-patent,  spinulose  at  back  of  point.  asperulum. 


fulvellum. 


schisti. 
falcatum. 

Starkei. 
nolle. 


majus. 
scoparinm. 


Bonjeani. 
Bergen, 
spurt  urn. 


elongatum. 

fuscescens. 
congestum. 


montanum. 
flagellare. 


Scottii. 
•uiridc. 


SECT.  i.    ARCTOA  SCHIMP. 
i.     DICRANUM    FUL VELLUM    (Dicks.)    Sm. 
Autoicous ;    short,   densely   tufted.       Leaves    secund,    lanceolate- 


DICRANACE^.]  142  [Dicranum. 

subulate,    entire.     Caps,    erect,    ovate,  furrowed  when  dry;  peristome 
large,  spreading.     (T.  XIX,  G.) 

Svn.—Bryiimfnlvclhim  DICKS.  Cr.  brit.  fasc.  IV,  10,  t.  u,  f.  i  (1801). 

Dicranum  fidvclluni  SM.  Fl.  br.  iii,  1209  (1804),  Eng.  Bot.  t.  2268.     GREV.  Scot.  cr.  fl.  t. 

188  (1825).     BRID.  Bry.  univ.  i,  813  (1826).     HOOK.  TAYL.  Muse.  br.  2  ed.  103,  Suppl.  t. 

3  (1827).     HOOK.  Br    Fl.  ii,  43    (1833).     MACK.  Fl.   hib.  P.  2,   24  (1836).     C.  MUELL. 

Synops.  i,  371  (1849).     MILDE  Bry.  siles.  62  (1869).     DE  NOT.  Epil.  bri.  it.  632  (1869). 

SCHIMP.  Synops.  77  (1860)  et  2  ed.  78  (1876).     JURATZ.  Laubm.  Oesterr.— ung.  37  (1882). 
Grimmia  schisti  SM.  Fl.  br.  iii,  1185.     Eng.  Bot.  t.  1952. 
Dicr.  rupestre  WEB.  MOHR  Bot.  Tasch.  185  &  469  (1807). 
Dicr.  Seligeri  BRID.  Mant.  59  (1819) ;  Bry.  univ.  i,  429. 
Dicr.  Moerchii  HORNSCH.  in  Flora  viii,  P.  I,  78  (1825). 
Weissiaflexiiosa  NEES  HORNSCH.  Bry.  germ,  ii,  P.  II,  121,  t.  35  (1831). 

Arctoa  fuhella  BR.  SCHIMP.  Bry.  eur.  fasc.  33 — 6,  p.  4,  t.  i  (1846).  RABENH.  Deutsch.  kr. 
fl.  ii,  S.  3,  151  (1848).  WILS.  Bry.  br.  59,  t.  33  (1855).  HARTM.  Skand.  fl.  9  ed.  71 
(1864).  BERK.  Handb.  br.  m.  286,  t.  23.  f.  10  (1863).  HOBK.  Syn.  br.  m.  39  (1873). 

Autoicous  ;  densely  caespitose,  i — 2  in.  high,  dull  green  or  yellowish 
above,  blackish  brown  below.  Leaves  dense,  secund,  the  upper  often 
falcate,  lane. -subulate,  glossy,  entire  or  slightly  denticulate  at  apex ; 
angular  cells  lax,  few,  flat,  the  rest  very  narrow  oblong.  Perich.  bracts 
from  an  oblong  sheathing  base,  subulate.  Caps,  slightly  exserted  on  a 
reddish-brown  seta,  erect,  oval  with  a  tapering  neck,  or  subcernuous 
and  slightly  asymmetric,  ferruginous,  8 — striate  when  dry  ;  lid  red, 
obliquely  conico-subulate ;  annulus  large  ;  teeth  red,  spreading 
horizontally  when  dry,  narrowly  lanceolate-subulate,  bifid  or  perforated. 

Male     infl.    gemmiform,     below   the  perichaetium,     bracts    ovate 
acuminate. 
HAB. — Crevices  of  rocks  on  the  higher  mountains.  Fr.  7. 

Ben  More  (Dickson).  Ben  Nevis  (Borrcr).  Ben  Lawers  (Greville)  !  !  Clova  (Drum- 
mond)  \  \  Snowdon  (Taylor]  \  !  Llanberis  (Hunt)  \  \  Cronkley  Scarr,  Teesdale 
(Spruce)  !  Striding  edge,  Great  Gable  and  Scawfell  Pikes  (Baker  1867)  !  !  Arncliff 
wood,  Whitby  (Rev.  J.  F.  Crouch)  \  \ 

The  foliage  much  resembles  that  of  Blindia  acuta,  with  which  it  was 
confounded,  but  the  angular  cells  are  different  and  the  fruit  quite  distinct. 

2.     DICRANUM   SCHISTI  (Gunn.)  Lindb. 

Autoicous;  in  soft  dull  green  tufts.  Leaves  lanc.-subulate,  entire, 
flexuose,  pellucid  with  fuscous  ang.  cells.  Caps,  ovate,  smooth, 
strumose.  (T.  XX,  A.) 

SYN. — Bryumfol.  sctaccis  curvatis,  caps,  erectis,  obtuse  ovatis,  capltcllo  oblique  rostrato,apopfiysi 

capitulo  subjccta  OEDER  Fl.  dan.  t.  538,  n   2  (1770). 
Bryum  schisti  GUNN.  Fl.  norveg.  P.  II,  138  (1772). 

Dicranum  Blyttii  BR.  SCHIMP.  Bry.  eur.  fasc.  37 — 40,  p.  26,  t.  16  (1847).  RABENH. 
Deutsch.  kr.  fl.  ii,  s.  3,  142  (1848).  C.  MUELL.  Synops.  i,  364  (1849).  WILS.  Bry.  br. 
74-,  t.  39  (1855).  SCHIMP.  Synops.  80  (1860),  2  ed.  81  (1876).  BERK.  Handb.  br.  m.  277 
(1863).  MILDE  Bry.  siles.  64  (1869).  HOBK.  Syn.  br.  m.  45  (1873).  JURATZ.  Laubm. 
Oesterr. — ung.  39  (1882). 

Dicr.  schisti  LINDB.  Act.  Soc.  scien.  fenn.  X,  n  (1871),  Muse,  scand.  24  (1879). 


DICRANACE^E.]  143  [Dicranum. 

Autoicous;  in  dull  dark  green  tufts  | — lin.  high,  fragile,  densely 
casspitose.  Leaves  lanceolate-subulate,  scarcely  secund,  flexuoso- 
patent,  soft,  entire,  nerve  excurrent  in  a  fine  point ;  cells  below  lineal- 
rectangular,  subquadrate  above,  at  angles  brown  or  hyaline.  Perich. 
bracts  very  large,  laxly  areolate,  with  fuscous  basal  cells,  suddenly 
subulate,  the  inner  sheathing ;  caps,  on  a  short  reddish  seta,  shortly 
ovate,  subcernuous,  more  or  less  incurved,  smooth,  pale  ferruginous, 
strumulose  when  dry ;  lid  crenulate  at  base,  conic,  with  a  long  oblique 
beak  ;  annulus  simple. 

Male  infl.  far  below  perichaetium,  inner  bracts  shortly  acuminate. 
HAB. — Crevices  of  mountain  rocks,  not  common.  Fr.  8. 

Holwick  scarr,  Teesdale  (Spruce  1843)  !  Carnedd  Llewellyn,  Snowdon  and  Cader  Idris 
(Wilson)  !  !  Loch-na-Gar (Black)  !  Ben  Lawers  (Wilson)  !  !  Glen  Dole,  Glen  Callater 
and  Bach-na-gairn  (Hunt  1869)  !  !  Glen  Prosen  (Fergnsson  1868)  ! 

3.     DICRANUM  FALCATUM  Hedw. 

Autoicous ;  loosly  tufted.  Leaves  lane. -subulate,  falcato-secund, 
crisped,  angular  cells  few,  indistinct.  Caps,  obovate,  strumose,  smooth, 
wide-mouthed  when  dry ;  peristome  blood-red.  (T.  XX,  B.) 

SYN. — Bryum  uncinatum  DICKS.  Cr.  brit.  fasc.  IV,  n,  t.  n,  f.  8  (1801). 

Dicranum  falcatum  HEDW.   Sp.  muse.   150,  t.  32,  f.  i — 7  (1801).      SM.  fl.  brit.  iii,  1208 

(1804),  Eng.   Bot.  t.   1989.     BRID.   Sp.  muse.   I,  224   (1806)  ;    Mant.  53   (1819).     WEB. 

MOHR   Bot.  Tasch.  190  (1807).     SCHWAEG.  Suppl.  I,  P.  I,  190  (1811).     WAHLENB.  Fl. 

lapp.  338   (1812),   Fl.  carpat.  344  (1814),  excl.  syn.  Dill.     ROEHL.  Deutsch.  fl.  iii,  73 

(1813).     HOOK.  TAYL.  Muse.  brit.   54,  t.   15   (1818).     FUNCK  Moost.  31,  t.  21  (1821). 

GRAY  Nat.  arr.  br.  pi.  i,  735  (1821).     HUEBEN.  Muse.  germ.  229  (1833).     DE  NOT.  Syll. 

216  (1838),  Epil.  bri.   ital.  631  (1869).     BR.   SCH.  Bry.  eur.  fasc.  37—40,  p.  27,  t.  18 

(1847).     RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  142  (1848).     C.  MUELL.  Synops.  i,  363  (1849). 

WILS.  Bry.  br.  79,  t.  17  (1855).     SCHIMP.  Synops.  79  (1860),  et  2  ed.  81  (1876).     BERK. 

Handb.  br.  m.  277  (1863).     MILDE  Bry.  siles.  63  (1869).     HOBK.  Syn.  br.  m.  45  (1873). 

JURATZ.  Laubm.  Oesterr. — ung.  38  (1882). 
Cecalyphum  scrophulosum  P.  BEAUV.  Prodr.  51  (1805). 
Oncophorus  falcatus  BRID.  Bry.  univ.  i,  393  (1826). 

Autoicous  ;  laxly  casspitose,  slender,  ascending  ;  i — 1|-  in.  high,  olive 
green  above,  black  and  naked  below,  dichotomous  and  fastigiate 
branched,  falcate  at  apex.  Leaves  lane. -subulate,  falcato-secund, 
crisped,  convolute  concave,  entire  or  denticulate  at  apex  ;  basal  cells 
narrowly  rectangular,  quadrate  toward  margin,  the  angular  very  few, 
brownish,  upper  quadrate,  nerve  narrow  flattened  excurrent.  Perich. 
bracts  broad,  subvaginant,  suddenly  setaceous,  laxly  areolated  ;  caps,  on 
a  rather  short  purplish  seta,  small,  obovate,  wide-mouthed,  subgibbous, 
cernuous,  smooth  with  a  tumid  strumose  neck,  rufous  brown,  fuscous  or 
black  when  old ;  annulus  very  narrow,  orange,  lid  from  a  broad  base, 
obliquely  rostellate,  purple,  half  length  of  capsule  ;  teeth  blood-red. 

Male  infl.  close  to  perich.,  inner  bracts  very  shortly  acuminate. 


DICRANACE^E.]  144  [Dicranum. 

HAB. — Crevices    of    rocks    and    stony   ground   on    the    higher    mountains. 
,       Fr.  8—9. 

Ben  Lawers,  Ben  More,  Glen  Callater  and  all  the  Grampian  range.  Cronkley  scars, 
Teesdale  (Black).  Falcon  clints  (R.  Barnes  1879)  !!  Skye  (Boswell  1873) !  !  Snowdon 
(Nuttall  1879) !  ! 

The  leaves  of  all  the  innovations  are  sometimes  so  uniformly  and  sym- 
metrically curved,  as  to  give  the  moss  a  very  beautiful  aspect. 

4.     DICRANUM  STARKEI   Weber  Mohr. 

Autoicous ;  resembling  last,  but  taller ;  leaves  entire,  not  crisped, 
with  distinct  brown  angular  cells;  caps,  oblongo-cylindric,  strumose, 
sulcate  when  dry,  peristome  pale  red.  (T.  XX,  C.) 

SYN. — Bryum  longlfolium  DICKS.  Crypt,  fasc.  3,  p.  7  (1793). 

Dicranum  Starkei  WEB.  MOHR  Bot.  Tasch.  189  and  471  (1807).  SCHWAEG.  Suppl.  I,  P.  I,. 
191,  t.  46  (1811).  ROEHL.  Deutsch.  fl.  iii,  74  (1813).  Eng.  Bot.  t.  2227.  HOOK.  TAYL. 
Muse.  br.  55,  t.  17  (1818).  BRID.  Mant.  53  (1819).  FUNCK  Moost.  31,  t.  21  (1821).  GRAY 
Nat.  arr.  br.  pi.  i,  736  (1821).  HUEBEN.  Bry.  germ.  230  (1833).  DE  NOT.  Syll.  216 
(1838),  Epil.  bri.  ital.  630  (1869).  BR.  SCH.  Bry.  eur.  fasc.  37—40,  p.  27,  t.  17  (1847). 
RABENH.  Deutsch.  kr.  fl.  ii,  s.  3,  142  (1848).  C.  MUELL.  Syn.  i,  364  (1849).  WILS.  Bry. 
br.  74,  t.  17  (1855).  SCHIMP.  Synops.  79  (1860),  et  2  ed.  80  (1876).  BERK.  Handb.  br. 
m.  276  (1863).  MILDE  Bry.  siles.  63  (1869).  HOBK.  Syn.  br.  m.  44  (1873).  JURATZ. 
Laubm.  Oesterr.— ung.  38  (1882). 

Oncophorus  Starkei  BRID.  Bry.  univ.  i,  394  (1826). 

Autoicous ;  in  fragile  tufts  i — 2  in.  high,  deep  or  yellow-green  above, 
fuscous  below,  resembling  D.  falcatum.  Leaves  falcato-secund,  lanc.- 
subulate,  not  crisped,  entire  or  with  a  few  minute  teeth  at  apex,  all 
lower  cells  elongated,  narrowly  rectangular,  upper  shorter,  the  angular 
very  distinct,  quadrate,  brown,  nerve  narrow,  excurrent.  Perich.  bracts 
broad,  sheathing,  laxly  areolate,  suddenly  subulate  ;  seta  pale  red,  longer, 
caps,  oblongo-cylindric,  gibbous  and  arcuate,  strumose,  striate  when  dry; 
annulus  double,  lid  conic,  with  a  long  oblique  beak,  peristome  pale  red. 

Male  infl.  close  to  perichaetium,  inner  bracts  longly  acuminate. 
HAB. — Same  localities  as  D.  falcatum.  Fr.  8. 

All  the  Breadalbane  and  Braemar  mountains.     Snowdon  (Nuttall  1879) !  ! 

Close  to  D.  falcatum,  but  always  distinguishable  by  the  distinct  vesicular 
brown  angular  cells,  the  narrower  and  longer  capsule,  and  the  shorter  more 
gradually  subulate  leaves. 

5.     DICRANUM  MOLLE  Wilson. 

Autoicous  ;  taller,  caespitose  ;  leaves  erecto-patent,  straight,  broadly 
lanceolate-subulate,  entire,  nerve  vanishing  at  apex;  caps,  oblongo- 
cylindric,  curved,  substrumose,  lid  with  a  short  beak.  (T.  XX,  D.) 

SYN.— Dicranum  Starkii  Var/J.  molle  WILS.  Bry.  br.  74  (1855). 

Dicranum  molle  WILS.  op.  c.  75,  ut  syn.     LINDB.  Muse,  scand.  24  (1879). 
Dicr.  glaciale  BERGGR.  in  Act.  univ.  Lund,  ii,  n.  VII,  19,  fig.  1—9  (1866).     BRAITHW.   in 
Journ.  Bot.  1870,  p.  228. 

Dicr.  arcticum  SCHIMP.  Bry.  eur.  Suppl.  fasc.  3—4,  t.  3  (1866) ;  Synops.  2  ed.  93  (1876). 


DICRANACE^.]  145  [Dicranum. 

Autoicous ;  in  large  dense  tufts  2 — 5  in.  high,  yellow-green  or 
olivaceous  above,  fuscescent  below,  soft ;  stems  slender,  simple  or 
dichotomous,  eradiculose.  Leaves  erecto-patent,  straight  glossy  oblongo- 
lanceolate,  subulate,  entire,  very  concave  semitubulose  above  from  the 
incurved  margin,  auricled  at  base,  nerve  narrow  compressed  vanishing 
at  apex ;  all  cells  very  narrow  linear,  the  angular  numerous  orange  lax 
quadrate.  Perich.  bracts  oval-oblong  sheathing,  laxly  areolate,  suddenly 
subulate,  imperfectly  denticulate  at  apex ;  caps,  oblongo-cylindric, 
cernuous  incurved  substrumose  not  striated,  fuscescent ;  annulus  simple, 
lid  with  a  short  stout  oblique  beak ;  peristome  purple. 

Male  infl.  close  to  perichsetium,  gemmiform,  brown,  bracts  broadly 
ovate,  subulate. 
HAB. — On  the  highest  mountains  of  Scotland.  Fr.  7 — 8. 

Ben  Nevis  (Hooker)  !  !  Cairn  Taggart  and  Loch-na-Neem,  Braemar  (Black) !  !  Ben- 
mac-dhui  (Hunt  1868)  !  !  Ben  Lawers. 

The  original  name  of  Wilson  is  highly  appropriate  to  this  beautiful 
species,  referring  as  it  does  to  its  soft  silky  leaves. 

SECT.  2.     EUDICRANUM  LINDB. 

6.     DICRANUM  MAJUS  Smith. 

Pseud-autoicous,  tall ;  leaves  from  a  broad  base,  lane. -subulate, 
falcate,  serrate  above,  not  undulate,  nerve  flattened,  excurrent,  serrate 
at  back  in  upper  part ;  setae  pale,  aggregated,  caps,  cernuous,  curved, 
lid  with  a  very  long  beak.  (T.  XX,  E.) 

SYN. — Bryu»ireclinatum,foUisfalcatisscoparum   effigie,  sctis  pluribus  DILL.  Hist.  muse.  358, 

t.  46,  f.  16,  D.  (1741),  et  herbar. 

Dicranum  niajiis  SM.  Fl.  brit.  iii,  1202  (1804),  Eng.  Bot.  t.  1409.  TURN.  Muse.  hib.  59, 
t.  4  (1804).  WAHLENB.  in  Act.  Holm.  1806,  p.  136.  SCHWAEG.  Suppl.  I,  P.  I,  163, 
t.  40  (1811).  HUEBEN.  Muse.  germ.  237  (1833).  BR.  SCHIMP.  Bry.  eur.  fasc.  37 — 40, 
p.  43,  t.  37  (1847).  RABEN.  Deutsch.  kr.  fl.  ii,  S.  3,  148  (1848).  HARTM.  Skand.  fl. 
C.  MUELL.  Syn.  i,  360  (1849).  WILS.  Bry.  br.  81,  t.  18  (1855).  JENS.  Bry.  dan.  93 
(1856).  SCHIMP.  Synops.  90  (1860),  2  ed.  92  (1876).  BERK.  Handb.  br.  m.  279  (1863). 
MILDE  Bry.  siles.  71  (1869).  DE  NOT.  Epil.  bri.  ital.  620  (1869).  HOBK.  Syn.  br.  m. 
48  (1873).  HUSN.  Mouss.  nord-ouest,  53  (1873).  JURATZ.  Laubm.  Oesterr. — ung. 
48  (1882). 

Dicr.  polysetum  p.p.     BRID.  Sp.  muse.  I,  174  (1806),   Mant.  56    (1819),  Bry.  univ.  i,  413 

(1826).     ROEHL.  Deutsch.  fl.  iii,  66  (1813). 
Dicr.  scoparium  Var.    a.   majus  HOOK.   TAYL.   Muse.  br.   58,  t.    18   (1818).     HOOK.   fl. 

scot.  P.  II,  133  (1821). 

Dicr.  scoparium  TAYL.  Ann.  Mag.  nat.  hist,  xii,  129  (1843),  et  Bot.  zeit.  1843,  p.  695. 
Pseud-autoicous;  2 — 5  in.  high,  laxly  csespitose,  pale  or  deep 
green  with  a  silky  gloss,  pale  brown  below ;  stem  slender,  prostrate 
below,  arcuato-ascending,  more  or  less  invested  with  pale  spongy 
tomentum.  Leaves  very  long,  subsericeous,  falcato-secund,  amplexi- 
caul,  lanceolate,  longly  subulate,  canaliculate,  sharply  serrate  in 
the  upper  part ;  nerve  broad  at  base,  ending  in  the  apex, 
sulcate  at  back  and  with  5  rows  of  teeth  toward  point ;  cells  at 


DICRANACE^E.J  146  [Dicranum. 

base  elongate-rectangular,  hyaline  and  wide  next  the  nerve,  the  angular 
colored  narrower  and  incrassate,  the  upper  small  narrowly  rectangular. 
Setae  2 — 5  in  the  same  perich.  rather  short,  slender  pale  often  convolute, 
bracts  broad  short  ovate,  suddenly  aristate,  inner  oblong  convolute, 
tipped  with  the  excurrent  nerve,  innermost  lingulate  obtuse,  nerveless  ; 
caps.  Isptodermous,  exannulate,  cernuous  and  horizontal,  oblong, 
subarcuate,  obsoletely  striate,  olivaceous  green,  when  old  black  and 
strongly  incurved,  lid  with  a  very  long  subulate  oblique  straw-coloured 
beak,  falling  with  the  calyptra,  teeth  ferruginous  red,  rather  short. 

Male  infl.  gemmiform,  nidulant  in  the  cauline  tomentum. 
HAB. — Banks  and  rocks  in  subalpine  woods  ;  not  uncommon.  Fr.  7 — 8. 

Except  Dillenius,  Smith  and  Turner,  all  the  older  botanists  confounded 
this  with  D.  scoparium,  from  which  it  is  readily  distinguished  by  the  polysetous 
inflorescence,  although  occasionally  solitary  capsules  may  be  met  with. 
Dr.  Taylor  erroneously  regarded  it  as  the  true  Br.  scopavium  of  Linnaeus. 

7.    DICKANUM   SCOPARIUM  (L.)  Hedw. 

Dioicous;  robust  laxly  tufted,  tomentose.  Leaves  lanceolate- 
subulate,  secund  or  falcato-secund,  carinate,  concave,  the  margins 
incurved,  serrated  above,  nerve  reaching  apex,  narrow,  with  4  prominent 
serrated  ridges  at  back  in  the  upper  part.  Capsule  cylindraceous, 
subarcuate  castaneous,  lid  longly  subulate.  (T.  XXI,  A.) 

SYN. — Adiantum  aureum  medium,  foliis  tenuissimis,  capitulis  erectis  acutis  Bobarti.     RAY  Synops. 

St.  brit.  App.  237  (1690). 
Muscus  trichoides  minor,  foliis  oblongis  angustis  obscure  viridibus  in  longuin  et  preetenuem 

mucronem  desinentibus.     RAY  Synops.  2  ed.  29  (1696). 
Bryum  crcctis  capitulis  aiigustifolium,  cattle  rcclinato.     DILL.  Cat.  Giss.  222  (1719),   et  in 

RAY  Synops.  3  ed.  95  (1724). 
Bryum   caule  inclinato,  foliis  arrcctis  subulatis,  capitulis  ercctiusculis.     L.  Fl.  Lapp.  315 

(I737)- 
Bryum  reclinatum,  foliis  fakatis,  scoparum  cffigie.     DILL.  Hist.  muse.  357,  t.  46,  f.   16 

A.  B.  C.  E.  H.  (1741). 

Bryum  scoparium  L.  Sp.  plant.  1117  (1753),  Syst.  nat.  ii,  701.  HUDS.  Fl.  angl.  406 
(1762).  NECK.  meth.  muse.  224  (1771).  WITH.  Bot.  art.  br.  veg.  ii,  673  (1776).  CURT. 
Fl.  Lond.  i,  t.  69  (1778).  LIGHTF.  Fl.  scot,  ii,  721  (1777).  Fl.  Dan.  t.  824,  1.  i  (1780). 
RELH.  Fl.  cant.  403  (1785).  SM.  Eng.  Bot.  t.  354  (1796).  HOFFM.  Deutsch.  fl.  ii,  39 
(1796).  ABBOT  Fl.  bedf.  141  (1798).  HULL  Br.  fl.  P.  II,  261  (1799). 

Hypnum  scoparium  WEISS  Cr.  goett.  71  (1770).  SCOP.  Fl.  earn.  2  ed.  n.  1234  (1772). 
WEB.  Spic.  fl.  goett.  71  (1778). 

Dicranum  scop.  HEDW.  Fund.  muse.  II,  92,  t.  8,  f.  41,  42  (1782)  ;  Sp.  muse.  126  (1801). 
ROTH  Tent.  fl.  germ,  i,  460. (1788)  etiii,  158.  SIBTH.  Fl.  oxon.  281  (1794).  BRID.  muse, 
rec.  II,  P.  I,  155  (1798),  Sp.  muse.  I,  172  (1806),  Mant.  56  (1819),  Bry.  univ.  i,  410  (1826). 
SWARTZ  muse.  suec.  34  (1799).  ROEHL.  Moosg.  D.  318  (1800),  Deutsch.  fl.  iii,  42 
(1813).  RICH,  in  MICHX.  Fl.  bor.  amer.  ii,  297  (1803).  STURM  Deutsch.  fl.  II,  13  (1803). 
SM.  Fl.  brit.  1201  (1804).  TURN  Muse.  hib.  58  (1804).  SCHULTZ  Fl.  starg.  294  (1806). 
WEB.  MOHR  Bot.  Tasch.  173  (1807)  excl.  syn.  SCHWAEG.  Suppl.  I,  P.  I,  162,  t.  42 
(1811).  WAHLENB.  Fl.  lapp.  336  (1812),  Fl.  carp.  343  (1814).  VOIT  Muse,  herbip.  39 
(1812).  MART.  Fl.  cr.  erl.  97  (1817).  HOOK.  TAYL.  Muse.  brit.  57,  t.  18  (1818)  excl.  var. 
GRAY  Nat.  arr.  br.  pi.  i,  738  (1821).  HOOK.  Fl.  scot.  P.  2,  133  (1821),  Br.  Fl.  ii,  41 
(1833).  FUNCK  Moost.  27,  t.  19  (1821).  ZENK.  DIETR.  Muse,  thuring.  n.  14  (1821). 
HUEBEN.  Muse.  germ.  235  (1833).  HARTM.  Skand.  Fl.  BALS.  DE  NOT.  Bry.  mediol.  135 


DICRANACE^.J  147  [Dicranum. 

MACK.  Fl.  hib.  P.  2,  24  (1836).  DE  NOT.  Syll.  muse.  212  (1838),  Epil.  bri.  ital.  619 
(1869).  SCHKUHR  Deutsch.  kr.  gew.  P.  II,  88,  t.  39  (1847).  BR-  SCHIMP.  Dry.  eur.  fasc. 
37-40,  p.  34,  t.  26  (1847).  RABENH.  Deutsch.  kr.  fl.  ii,  s.  3,  145  (1848).  C.  MUELL. 
Synops.  i,  359  (1849).  WILS.  Bry.  brit.  78,  t.  18  (1855).  JENS.  Bry.  dan.  92  (1856). 


SCHIMP.  Synops.  89  (1860),  2  ed.  91  (1876).     BERK.  Handb.  br.  m.  278,  t.  23,  f.  7  (1863). 

~   f.  siles.  70  (1869).     HOBK.  Syn.   br.  m.  47 
53  (1873).    JURATZ.  Laubm.  Oesterr.-ung.  48  (1882). 


MILDE  Bry.  siles.  70  (1869).     HOBK.  Syn.  br.  m.  47  (1873).     HUSN.  Mouss.  nord-ouest 


Fusciiia  scoparia  SCHRANK  Baiers.  Fl.  ii,  452  (1789),  Prim.  Fl.  Salisb.  n.  827  (1792). 
Mnium  scop.  GMEL.  Syst.  nat.  ii,  1328  (1791).      LAICH.  PI.  eur.  476  (1794).      WITH.  Bot. 

arr.  br.  veg.  3  ed.  799  (1796). 

Cccalyphum  scop.     P.  BEAUV.  Prodr.  51  (1805) ;  Mem.  soc.  Linn.  Par.  t.  2,  f.  4  (1822). 
Dicranum  Dillenii  TAYL.  in  Ann.  mag.  nat.  hist,  xii,  129  (1843),  et  Bot.  zeit.  1843,  p.  695. 

Autoicous  and  dioicous ;  in  large  lax  rather  rigid  tufts,  yellowish 
green  above,  fuscescent  below.  Stems  2 — 5  in.  high,  dichotomous, 
densely  covered  with  pale  or  ferruginous  tomentum,  interrupted  by  the 
innovations,  which  have  the  leaves  longer  and  more  crowded  in  upper 
part.  Leaves  glossy,  falcato-secund,  rarely  straight,  the  terminal 
comant,  carinate-concave,  from  an  elongated  oblong  base,  lanceolate 
subulate,  sharply  serrate  at  margin ;  nerve  flattened,  narrowing  upward 
and  reaching  apex,  at  back  sulcate  and  with  4  ridges,  serrated  toward 
apex;  upper  cells  linear-rectangular,  basal  longer  subvermicular,  the 
angular  large,  quadrate  orange-brown.  Seta  solitary,  red,  bracts 
convolute  in  a  cylinder,  outer  from  a  broad  base,  narrowly  lineal, 
patulous,  serrated,  inner  convolute  with  a  narrow  subula  from  the 
rounded  apex,  nerve  obsolete ;  caps,  pachydermous,  exannulate, 
cernuous,  rarely  suberect,  cylindraceous,  subarcuate,  becoming  more 
curved  when  old,  not  striate,  castaneous  or  rufescent ;  lid  convex  with 
a  stout  rufous  subulate  beak  as  long  as  capsule  ;  teeth  solid,  bright  red, 
cleft  to  middle. 

Male  plants  distinct,  more  slender  with  infl.  terminal,  or  gemmaceous 
and  nidulant  in  the  tomentum  below  the  perichsetia,  bracts  from  an 
ovate  base,  narrowly  linear. 
HAB. — Shady  banks,  rocks,  stone  walls,  and  heaths  ;  common.     Fr.  7 — 8. 

Var.  ft.  alpestre  Hueben. 

More  densely  tufted,  shining  fulvous  ;  stem  erect  nearly  straight,  with 
short  branches  ;  leaves  denser,  broader,  straight  or  slightly  secund,  erecto- 
appressed,  margin  and  nerve  entire  or  with  a  few  obtuse  teeth. 
SYN.— Dlcr.  scoparinm  £  alpestre.    HUEBEN.    Muse.    germ.    236.       DE    NOT.  Syll.  et  Epil. 
MILDE  Bry.  siles.  70.    JURATZ.  Laubm.  Oesterr.-ung.  49. 

HAB.— Subalpine  woods  ;  not  common.     Innisfallen,  Killarney  (Hunt  1864)  !  ! 

Var.  y.  recurvatum  (Schultz)  Brid. 

Slender,  elongated,  geniculato-ascending,  deep  green  opake  ;  leaves  sud- 
denly larger  in  the  coma,  falcato-secund,  elongated. 

SYN. — Dicranum  recurvatum  SCHULTZ  Fl.  Starg.  295. 

Dicr.  scoparium  var.  recurvatum  BRID.  Sp.  muse.  173,  Bry.  univ.  i,  412.     SCHIMP.  Synops. 

HUEBEN.    JURATZ. 
Dicr.  pallidum  MITT,  in  litt. 


DICRANACE^.]  148  [Dicranum. 

HAB.—  Among  grass  on  sandy  ground.    Godalming  (Mitten  1881 )  !  ! 

Resembling  a  small  state  of  D.  majus,  but  quite  agreeing  with  D.  scoparium 
in  the  structure  of  leaf.  It  appears  to  me  to  differ  far  more  from  D. 
pallidum,  than  the  latter  does  from  typical  D.  scoparium. 

Var.  3.  turfosum  Milde. 

Tufts  tall,  glossy,  yellow  green  above,  dark  fuscous   below,  with  few 
radicles.      Leaves    elongated,  erecto-patent,  subcuspidate    at  apex,  almost 
entire,  or  with  a  few  obtuse  teeth  toward  apex  and  at  back. 
SYN.— D.  scoparium  var.  turfosum  MILDE  Bry.  siles.  71. 
HAB. — Moorland    bogs.       Moor    near    Blasham    beck,    Lofthouse,    Yorks. 

(Wesley  1878)  !  ! 

This  variety  deviates  much  in  aspect  from  all  the  other  forms  of  D.  sco- 
parium, approaching  somewhat  to  D.  spadiceum  by  the  dark  colour  of  the  lower 
leaves. 

Var.  e.  orthophyllum  Brid. 

In   dense  yellow-green  tufts,  radiculose.      Leaves  erect  or  subsecund, 
rigid,  elongated,  entire  or  distantly  and  obtusely  serrated  toward  apex. 
SYN.— D.  scoparinm  var.  orthophyllum   BRID.   1.  c.    HUEBEN.,  SCHIMP.,  MILDE,  JURATZ. 

HAB. — On  heaths.  Near  Conway  !  Ardingly,  Sussex  (Davies}.  Grewelthorpe 
moor,  Yorks.  (West  1880)!!  Carmendow,  Derby  (Holt  1882) !!  Near 
Penzance  (Varenne  1882) !  ! 

Var.  £.  paludosum  Schimp. 

In  tall  dense  bright  green  tufts,  strongly  radiculose.      Leaves  short, 
broad,  subsecund,  sharply  serrate,  rugulose  at  apex. 
SYN. — D.  scoparium  var.  paludosum  SCHIMP.  Synops.  90.     MILDE,  JURATZ. 
HAB. — Moorland  bogs.      Glen   Ogle,    Perth   (Boswell    1873)  !  !     Near    Loch 

Maree,  Ross  (Boswell  1875) !  !     Kinder  scout  (Holt  1882) ! ! 

This  very  common  but  elegant  moss  is  the  centre  of  a  group  of  closely 
allied  species,  as  it  is  also  of  a  series  of  varieties,  which  are  troublesome  to 
the  student  and  difficult  to  define  in  words ;  indeed,  the  acute  bryologist 
Mitten  is  inclined  to  regard  D.  scoparium  as  a  compound  of  several  species. 

The  first  point  to  which  attention  may  be  drawn  in  the  typical  form,  is 
the  condition  of  the  leaf-cells,  which  in  the  young  and  active  stage  are  seen 
to  be  crammed  with  chlorophyl  and  large  oil-globules,  these  at  a  later  period 
are  used  up  and  all  the  cells  are  found  to  be  empty,  but  in  both  states  the 
transverse  pores  are  distinctly  visible  ;  a  patch  of  the  central  basal  cells  is  also 
often  thin  and  hyaline. 

Dicr.  pallidum  SCHIMP.  (D.  scoparium  SULLIV.  muse,  alleg.  n.  155)  I  cannot 
distinguish  from  D.  scoparium,  from  which  it  does  not  differ  in  male  infl.  while 
the  paler  color  of  the  capsule  cannot  have  much  specific  value. 

Dicr.  Venturii  DE  NOT.  of  which  I  have  original  specimens  from  Dr. 
Venturi,  collected  on  the  Alps  of  Saent,  I  must  also  refer  to  Dicr.  scoparium, 
and  in  this  opinion  I  am  confirmed  by  Limpricht,  Lindberg  and  Boswell ; 
although  in  aspect  approaching  D.  Bonjeani  it  has  the  stout  strongly  serrated 
nerve  of  the  former  species,  the  areolation  throughout  being  rather  laxer  and 


DICRANACE^.]  149  [Dicranum. 

more  abbreviated.  The  plant  referred  here  by  Mitten  I  regard  as  a  variety 
of  the  next  species. 

Dicr.  spadiceum  ZETTERST.  (D.  neglectum  JURATZ.)  is  an  extreme  form 
having  much  the  aspect  of  a  distinct  species,  but  quite  agreeing  with 
D.  scoparium  in  its  areolation.  The  leaves  are  quite  entire  and  smooth  at 
back. 

From  this  it  will  be  seen  that  D.  scoparium  is  highly  polymorphous,  and 
that  the  presence  or  absence  of  serrated  margins  to  the  leaf  cannot  be  relied 
upon  to  afford  a  distinctive  character,  yet  a  peculiar  facies  runs  through  all 
its  forms  which  will  generally  indicate  the  species,  but  the  microscope  must 
also  be  used  for  confirmation. 

8.  DICRANUM  BONJEANI  De  Not. 

Dioicous ;  laxly  tufted,  tomentose.  Leaves  lanceolate,  erecto- 
patent,  glossy,  undulated  above,  nerve  lost  below  the  serrated  apex. 
Capsule  solitary,  subcylindric,  slightly  curved,  striated.  (T.  XXI,  B.) 

SYN. — Dicranum  Bonjeani  DE  NOT.  in  LISA  Elen.  29,  et  Syll.  muse.  213  (1838),  Epil.  bri.  ital. 

616  (1869).     C.  MUELL.  Syn.  i,  369  (1849). 

Dicr.  undulatum  (baud  EHRH.)  TURN.  Muse.  hib.  59  (1804).  SM.  Eng.  bot.  t.  2260  p.p. 
HOOK.  TAYL.  Muse.  brit.  57,  t.  18  (1818).  HOOK.  Fl.  scot.  p.  2,  133  (1821),  Br.  Fl.  ii,  41 
(1833).  GRAY  Nat.  arr.  br.  pi.  i,  737  (1821).  MACK.  Fl.  hib.  P.  2,  24  (1836).  JENS.  Bry. 
dan.  90  (1856). 

[ARTM. 
18  (1855). 

I.       MlLDE 

Bry.  siles/72  (1869)."   HO'BK.  Syn.  br.  111.48  (1873).     HUSN.  Mouss.  nord-ouest  54  (1873). 
JURATZ.  Laubm.  Oesterr.-ung.  49  (1882). 

Autoicous  and  dioicous;  in  large  soft  lax  tufts,  stems  slender 
4 — 6  in.  high,  covered  with  tomentum,  at  first  whitish,  finally 
ferruginous,  subcuspidate  at  apex.  Leaves  thin,  erecto-patent, 
yellowish-green,  very  glossy,  sharply  serrate  and  minutely  transversely 
undulate  above,  from  a  broad  base,  lanceolate  acuminate,  acute,  nerve 
vanishing  below  apex,  narrow,  smooth  at  back,  or  faintly  serrate  near 
apex ;  cells  at  base  large,  quadrang.  brown,  above  elongate  hexagono- 
rectangular,  upper  narrowly  elliptic  or  oblong,  Seta  solitary,  slender, 
yellowish  above,  pale  red  below;  bracts  short,  from  a  broad  base, 
abruptly  subulate,  inner  longer,  convolute,  nerve  obsolete ;  capsule 
leptodermous,  cernuous,  incurved,  turgid  obovate-oblong,  with  a 
substrumose  neck,  exannulate,  yellowish-brown,  striated  with  orange  ; 
calyptra  large  straw-colored;  lid  subulate,  long  as  caps,  pale  red; 
peristome  as  inZ).  scoparium.  pale  purple. 

HAB. — In   moorland   bogs   and   on    damp    shady   banks ;    not   uncommon. 

Fr.  7—8. 

In  fr.  Forest  of  Ballochbui  and  Kinnoul  (Croall  1855)!  Doune  (McKinlay 
1866) !  Levens,  Brandt  Fell  and  Bowness  (Barnes  1867) !  ! 

Var.  ft.  juniperifolium  (Sendt.) 


Dicr.  palustre  (baud  LA  PYL.)  BR.  SCH.  Bry.  eur.  fasc.  37-40,  p.  39,  t.  31  (1847).  H/ 
Skand.  fl.  RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  146  (1848).  WILS.  Bry.  br.  79,  t.  18  (i 
SCHIMP.  Synops.  91  (1860),  2  ed  94  (1876).  BERK.  Handb.  br.  m.  279  (1863).  M 


DICRANACE^.]  150  [Dicranum. 

Plants  more  robust  and  densely  leaved  ;  leaves  broadly  lanceolate,  rather 
rigid,  brownish. 

SYN. — Dicr.junipcrifolium  SENDT.  in  Denk.  cl.  Reg.  hot.  ges.  iii,  144  et  Flora  1849,  I,  59. 
Dicr  pulustre  ft  juniperif.  B.  SCH.  Bry.  eur.     WILS.  Bry.  br.  79.     SCHIMP.  Synops. 

HAB. — In  sand  pits  in  a  fir  plantation,  Stockton  forest,  York  (Spruce  1842) !  ! 
Ben  Lawers  (Wilson  1855)  !  !  Near  Blandford,  Dorset  (Boswell  1867) ! ! 
Hills  about  Killin  (McKinlay  1862). 

Var.  y.  calcareum  Braithw. 

Stems  shorter,  more  rigid,  with  pale  tomentum  ;  leaves  secund,  sub- 
falcate,  concave  with  incurved  margins,  undulate  only  at  apex,  and  slightly 
serrated  only  towards  point. 

SYN. — Dicr.  Venturii  MITT,  in  litt. 

HAB. — On    the  ground  in    calcareous   districts  ;  rare.      Woolstonbury  hill, 
Godalming,  and  other  similar  localities  in  Sussex    Mitten  1881)  !  ! 
Dicv.  palustre  was  confounded  by  all  the  early  British  botanists  with  the 
fine   D.   undulatum  EHRH.  which  is  distributed  all   over  the  continent,  but 
strangely  absent  from  this  country,  as  is   also  the   still   grander   D.  datum 
LIND.  (D.  robustum  BLYTT.),  though  both  might  reasonably  have  been  expected  to 
occur  here  ;  both  these  species  resemble  D.  majus  in  having  aggregated  setae. 
Die.  palustre  LA  PYLAIE  according  to  specimens  in  Bridel's  herbarium  is 
a  form  of  Campylopus  flexuosus,  and  the  specimens  in  the  Dillenian  herbarium 
representing  T.  46,  fig.  16  C.  of  Hist.  muse,  belong  to  D.  scopavium  and  foreign 
D. undulatum  EHR.  (fide  Lindberg). 

9.   DICRANUM  BERGERI  Elandow. 

Autoicous ;  densely  tufted,  tomentose.  Leaves  broadly  lanceolate, 
rather  obtuse,  undulate  at  margin,  nerve  vanishing  in  the  eroso- 
denticulate  apex,  which  is  smooth  at  back.  Capsule  solitary,  cylindric, 
curved,  lid  rostrate.  (T.  XXII,  B). 

SYN. — Dicranum  undulatum  (baud  EHRH.)  SCHRAD.  Spic.  fl.  germ.  59  (1794).  ROTH  Fl. 
germ,  iii,  167  (1795).  BRID.  muse.  rec.  II,  P.  I,  157  (1798),  Sp.  muse.  I,  176  (1806), 
Mant.  57  (1819),  Bry.  univ.  i,  415  (1826).  ROEHL.  Moosg.  Deutsch.  336  (1800),  Deutsch. 
fl.  iii,  67  (1813). 

Dicranum  Bergcri  BLAND.  Muse.  fr.  exs.  Ill,  n.  114  (1804).  C.  MUELL.  Synops.  i,  357 
(1849).  JENS.  Bry.  dan.  91  (1856).  DE  NOT.  Epil.  bri.  ital.  617  (1869). 

Dicr.  affine  FUNCK  Cr.  gew.  Fichtel.  VI,  p.  2,  n.  136  (1806). 

Dicr.  intermedium  CROME  in  HOPP.  Bot.  Tasch  1806,  p.  186. 

Dicr.  Schraderi  WEB.  MOHR  Bot.  Tasch.  177  (1807).  SCHWAEG.  Suppl.  I,  P.  I,  166,  t.  41 
(1811).  WAHLENB.  Fl.  lapp.  336  (1812),  Fl.  carpat.  344  (1814).  FUNCK  Moost.  28,  t.  19 
(1821).  HUEBEN.  Muse.  germ.  241  (1833).  BR.  SCH.  Bry.  eur.  fasc.  37-4°!  P-  4°> *•  32  (I847). 
RABEN.  Deutsch.  kr.  fl.  ii,  s.  3,  147  (1848).  HARTM.  Skand.  fl.  WILS.  Bry.  brit.  80,  t.  39 
(1855).  SCHIMP.  Synops.  92  (i86o\  2  ed.  95  (1876).  BERK.  Handb.  br.  m.  279 
(1863).  MILDE  Bry.  siles.  73  (1869).  HOBK.  Syn.  br.  m.  48  (1873).  JURATZ.  Laub. 
Oesterr.-ung.  50  (1882). 

Autoicous;  densely  caespitose,  bright  or  fuscous  green,  tumid. 
Stem  erect,  2 — 6  in.  high,  covered  with  rufous  tomentum  below. 
Leaves  densely  imbricated,  erecto-patent  or  subsecund  above,  some- 
what crisped  when  dry,  the  younger  glossy  green,  the  lower  pale,  long, 


DICRANACE^.]  151  [Dicranum. 

broadly  lanceolate,  rather  obtuse,  channelled  below,  carinate  above, 
margin  strongly  undulate  from  middle  to  apex,  sharply  serrate  and  also 
at  back  of  nerve  which  vanishes  below  apex ;  cells  at  base  narrowly 
rectang.  at  angles  suddenly  much  dilated,  subquadrate,  orange,  above 
subrhombic-quadrate,  irregular,  mammosely  protuberant  at  back. 
Perich.  bracts  convolute  with  a  short  point;  capsule  on  a  greenish- 
yellow  seta,  rather  small,  incurved-oblong,  cernuous,  obsoletely  striate  ; 
annulus  of  3  rows  of  cells  ;  lid  long-beaked,  long  as  caps. 

Male  infl.  very  small,  gemmaceous,  nestling  in  the  tomentum. 

HAB. — Boggy  heaths  ;  rare.         Fr.  8 — 9. 

Risley  moss,  Warrington  (Wilson) !     Wybunbury  bog  in  fr.  (Wilson) ! ! 

10.   DICRANUM  SPURIUM  Hedwig. 

Autoicous ;  laxly  tufted,  tomentose.  Leaves  broadly  lanceolate, 
acute,  undulate,  eroso-denticulate,  papillose  at  back,  nerve  vanishing. 
Capsule  solitary,  cylindric,  arcuate,  lid  rostrate.  (T.  XXII,  A.) 

SYN. — Dicranum  spnrium  HEDW.  Muse,  frond,  ii,  82,  t.  30  (1788),  Sp.  muse.  141  (1801).  TIMM 
Fl.  meg.  n.  784  (1788).  ROTH  Fl.  germ,  iii,  P.  I,  178  (1795).  BRID.  Muse.  rec.  II,  P.  i, 
171  (1798),  Sp.  muse.  I,  200  (1806),  Mant.  65  (1819),  Bry.  univ.  i,  416  (1826).  SWARTZ 
Muse.  suec.  33  (1799).  ROEHL.  Moosg.  deutsch.  352  (1800),  Deutsch.  Fl.  iii,  68  (1813). 
SMITH  Fl.  brit.  iii,  1222  (1804),  Eng.  Bot.  t.  2167.  WEB.  MOHR  Bot.  Tasch.  178  (1807). 
SCHVVAEG.  Suppl  I,  P.  I,  179  (1811).  VOIT  Muse.  herb.  40  (1812).  MART.  Fl.  cr.  erl. 
103  (1817).  HOOK.  TAYL.  Musc.br.  56,  t.  17  (1818).  FUNCK  Moost.  29,  t.  20  (1821). 
HOOK.  Fl.  scot.  p.  2,  133  (1821)  ;  Br.  Fl.  ii,  40  (1833).  GRAY  Nat.  arr.  Br.  pi.  i,  737 
(1821).  HUEBEN.  Muse.  germ.  242  (1833).  ^E  NOT.  Syll.  muse.  214  (1838);  Epil.  618 
(1869).  HARTM.  Skand.  fl.  BR.  SCH.  Br.  eur.  fasc.  37-40,  p.  41,  t.  33  (1847).  RABEN. 
Deutsch.  kr.  fl.  ii,  S.  3,  147  (1848).  C.  MUELL.  Synops.  i,  356  (1849).  WILS.  Bry.  brit. 
80,  t.  18  (1855).  JENS.  bry.  dan.  91  (1856).  SCHIMP.  Synops.  93  (1860);  2ed.  96  (1876). 
BERK.  Hand.  br.  m.  280  (1863).  MILDE  Bry.  siles.  73  (1869).  HOBK.  Syn.  br.  m.  49 
(1873).  HUSN.  Mouss.  nord-ouest  54  (1873).  JURATZ.  Laubm.  Oesterr.-ung.  51  (1882). 

Mnium  spnrium  GMEL.  Syst.  nat.  ii,  1328  (1791).     LAICH,  PI.  eur.  476  (1794). 

Bryum  spnrium  HOFFM.  Deutsch.  fl.  ii,  38  (1796).     DICKS.  PI.  crypt.  Fasc.  4,  13  (1801). 

Cecalyphum  spurium  P.  BEAUV.  Prodr.  51  (1805). 

Autoicous ;  robust,  crowded  into  lax  fragile  tufts,  glossy  bright  or 
yellowish  green.  Stems  dichotomous,  erect  or  decumbent,  3 — 6  in. 
high,  fasciculate-leaved,  covered  with  rufescent  tomentum.  Leaves 
shorter  below,  ovato-lanceolate,  upper  crowded  into  a  dense  coma, 
patent,  when  dry  incurved,  subcirrate,  broadly  lanceolate,  attenuated 
rapidly  to  a  point,  very  rugose,  serrated  at  margin,  papillose  at  back  of 
apex ;  nerve  thin,  vanishing  at  apex,  denticulate-scabrous  at  back  of 
point ;  cells  at  base  short,  incrassate,  above  elongato-rectang.  upper  short, 
polymorphous.  Perich.  bracts  ovate  subulate,  inner  elongate  convolute 
sheathing,  with  a  short  point ;  caps,  oblong,  subcylindric,  incurved, 
obsoletely  striate,  pale  yellow-brown,  when  dry  curved  cernuous,  deeply 
sulcate  and  contracted  below  mouth  ;  annulus  of  2  series  of  cells  ;  lid 
long  as  caps,  obliquely  rostrate  ;  per.  of  D.  scoparium  with  subulate  legs. 
Male  infl.  gemmaceous,  nidulant  in  the  tomentum. 


DiCRANACEjB.]  152  [Dicranum. 

HAB. — Wet  sandy  heaths  and  bogs,  not  common.        Fr.  7. 

Angus-shire  (Don).  Barmby  moor,  Yorks.  (Teesdale,  Spruce  c.  fr.).  Stockton  forest  and 
Langwith  moor,  York  (Spruce  1842) !  Kinnordy,  Scotland  (Lycll).  Waterdown  and 
Broadwater  forests,  Tunbridge  Wells  (Mitten).  Foot  of  Mt.  Shade,  Stra'an,  Banchory 
c.  fr.  (Sim  1877) ! !  Ripon,  Yorks.  Trossachs  (Stirton  1865). 

Readily  known  from  the  last  by  its  broader  leaves  with  shorter  more 
acute  points,  papillose  at  back. 

ii.    DICRANUM  CONGESTUM  Bridel. 

Dioicous ;  tomentose ;  upper  leaves  crowded,  secund,  linear- 
lanceolate,  somewhat  crisped,  remotely  serrate  above,  upper  cells  large, 
angular,  nerve  I  width  of  base,  vanishing  at  apex;  capsule  pale, 
oblique,  smooth.  (T.  XXII,  C.) 

SYN. — Dicranum  congestum  BRID.  Sp.  muse.  I,  176  (1806) ;  Mant.  57  (1819)  ;    Bry.  univ.  i,  418 
(1826).     SCHWAEG.  Suppl.  I,  p.  I,  168,  t.  42  (1811).     ROEHL.  Deutsch.  fl.  iii,  67  (1813). 
FUNCK  Moost.  28,  t.  19  (1821).     LINDB.  muse,  scand.  24  (1879). 
Dicranum  fuscescens  p.p.  plur.  auct. 

Dioicous ;  stem  erect  I — 2  in.  high,  densely  clothed  with  ferruginous 
tomentum,  fastigiate-branched,  yellowish  green.  Leaves  more  or  less 
secund,  crispate  when  dry,  broadly  lanceolate  with  a  short  point, 
canaliculate  at  base,  carinate  above  ;  nerve  narrow  and  thin,  |  width 
of  base,  lost  at  apex,  smooth  or  remotely  serrate  at  back  and  less 
prominent,  margins  remotely  and  coarsely  serrate  above ;  cells  at  base 
elongated,  very  narrow,  the  angular  brown,  incrassate,  quadrate,  upper 
2 — 3  times  larger  than  in  D.  fuscescens,  irregular  in  form,  at  back  rarely 
faintly  spinulose.  Per.  bracts  sheathing,  the  nerve  excurrent  as  a  short 
subula,  seta  tall,  straw-colored,  caps,  ovate-oblong,  cernuous,  smooth, 
pale  brown,  more  leptodermous,  annulus  double,  lid  pale,  conic  with  a 
long  oblique  beak,  teeth  pale  purple,  spores  greenish. 

HAB. — Mountain  rocks,  very  rare.         Fr.  8. 

Ben  Lawers  (Boswell  1873) '  •  a  ^ew  stems  intermixed  with  D.  fuscescens. 

Var.  ft.  flexicaule  (Brid.)  Br.  Sch. 

Stem  much  elongated,  flexuose,  reclining  at   base,   scarcely  tomentose  ; 
leaves  elongated,  laxer,  falcato- secund,  almost  entire,  yellowish  green  ;  caps, 
more  curved,  cernuous, 
Sw.— Dicr.  flexicaule  BRID.  Bry.  univ.  i,  42. 

Dicr.  congestum  var .  flexicaule  BR.  SCH.  Bry.  Eur.  fasc.  37—40,  p.  36,  t.  29  y. 

Dicr.  fuscescens  var.  flexicaule  WILS.  Bry.  br.  77.  SCHIMP.  Syn.  88,  et  2  ed.  90.  DE  NOT. 
Epil.  622.  MILDE  Bry.  sil.  69.  JURATZ.  Laubm.  Oesterr.-ung.  46. 

HAB. — Mountain  rocks,  not  common. 

Near  the  High  Force,  Teesdale  (Spruce  1843) !  Ben  Lawers  (Hunt  1865) !  !  Loch-na- 
Gar  (Black). 

This  moss  has  been  almost  universally  combined  with  D.  fuscescens,  until 
Lindberg  pointed  out  the  distinctive  characters ;  the  broader  leaves  with 


DICRANACE.E.]  153  [Dicmnum. 

much  narrower  nerve  and  large  irregular  apical  cells  are  quite  sufficient  to 
separate  it,  and  in  habit  it  approaches  far  nearer  to  D.  Bonjeani  than  to 
fuscescens,  while  the  areolation  at  the  lower  part  resembles  that  of  D.  scoparium, 
with  pores  in  the  cell  walls. 

SECT.  3.    APORODICTYON   LINDB. 
12.     DICRANTJM  FUSCESCENS  Turner. 

Dioicous ;  leaves  patent  or  secund,  narrow,  longly  subulate,  flexuose, 
closely  serrulate  at  margin  and  back,  upper  cells  small,  quadrate,  nerve 
? — £  width  of  base,  forming  all  upper  part  of  subula ;  capsule  rufous, 
less  oblique,  lightly  striate.  (T.  XXII,  D.) 

SYN. — Dicranum  fuscescens  TURN.  Muse.  hib.  60,  t.  5,  f.  i  (1804).  SMITH  Fl.  brit.  iii,  1204 
(1804),  Eng.  Bot.  t.  1597.  WILS.  Bry.  br.  77,  t.  18,  ft  (1855).  SCHIMP.  Synops.  87 
(1860),  2  ed.  89  (1876).  BERK.  Handb.  br.  m.  278  (1863).  MILDE  Bry.  sil.  69  (1869). 
DE  NOT.  Epil.  621  (1869).  HOBK.  Syn.  br.  m.  47  (1873).  LINDB.  Muse,  scand.  23 
(1879).  JURATZ.  Laubm.  Oesterr.-ung.  45  (1882). 

Dicranum  rupestre  BRID.  Sp.  muse.  I,  177  (1806) ;  Mant.  58  (1819) ;  Bry.univ.  i,  419  (1826). 
Dicr.  scoparium  ft.  fuscescens  WEB.  MOHR  Bot.  Tasch.  174  (1807).      HOOK.  TAYL.  Muse. 

brit.  58,  t.  18,  ft.  (1818).     GRAY  Nat.  arr.  Br.  pi.  i,  738  (1821). 
Dicr.  longirostre  SCHWAEG.  Suppl.  I,  P.  I,  170,  t.  44  (1811). 
Dicr.  scoparium  c.  rupestre  ROEHL.  Deutsch.  Fl.  iii,  66  (1813). 
Dicr.  congestum  p.p.  HUEBEN.  Muse.  germ.  244  (1833).     HARTM.  Skand.  fl.     BR.  Sen. 

Bry.  eur.  fasc.  37-40,  p.  36,  t.  29  (1847).     RABEN.  Deutsch.  kr.  fl.  ii,  S.  3,  146  (1848). 

C.  MUELL.  Synops.  i,  360  (1849). 
Dicr.  Kinlayanum  SCHIMP.  MSS. 

Dioicous ;  stem  erect,  1—4  in.  high,  tomentose,  fastigiate-branched. 
Leaves  crowded,  subsecund  falcate  subulate  carinate,  slightly  crisped 
when  dry,  subula  very  long,  deeply  channelled  ;  nerve  thick,  prominent 
at  back  f — \  width  of  base,  forming  all  the  plano-convex  point  of 
subula,  strongly  and  densely  serrulate  at  back,  margins  densely  and 
minutely  serrulate ;  cells  at  base  rectangular  elongate,  the  angular 
lax  quadrate  brown,  upper  small,  regularly  quadrate,  spinuloso- 
papillose  at  back.  Per.  bracts  sheathing,  abruptly  narrowed  into  a 
longer  subula  formed  of  the  nerve ;  seta  stouter,  fulvous,  caps,  oblong, 
rufous-brown,  longer,  thicker,  less  oblique,  with  a  narrower  mouth, 
pachydermous,  lightly  sulcate,  annulus  subtriple,  lid  long  as  capsule, 
conic  with  an  oblique  pale  beak;  peristome  intense  purple,  spores 
brownish. 

Male  plants  slender,  intermixed  with  female ;  infl.  terminal,  bracts 
concave,  lanceolate,  subulate. 

HAB. — Wet  rocks  in  mountain  districts,  not  uncommon  ;  frequent  on  all  the 
Scotch  mountains.     Fr.  8. 

Var.  ft.  falcifolium  Braithw. 

Densely  tufted,  deep  green,  fastigiate  ;  leaves  all  falcato-secund,  flexuoso- 
cirrhate  toward  apex,  shorter  and  less  attenuated  to  point. 


DICRANACE^.]  154  [Dicramim. 

HAB. — Holwick  Scarr,  Teesdale  (Spruce,  1843) !  Hills  behind  Dunoon  (Stirton, 

1865) ! ! 

D.  fuscescens  is  somewhat  like  a  small  state  of  D.  scoparium,  but  is  readily 
known  by  its  slightly  curled  leaves  with  short  cells  free  from  transverse  pores, 
and  its  pale  striated  capsule.  It  is  very  variable  in  size  and  colour,  and 
also  in  the  curving  of  the  leaves. 

13.    DICRANUM  ELONGATUM   Schleich. 

Dioicous  ;  compactly  tufted,  stems  slender,  elongated,  leaves  lan- 
ceolate-acuminate, entire,  nerve  excurrent ;  capsule  ovate,  cernuous.  lid 
with  a  long  oblique  beak.  (T.  XXIII,  A.) 

SYN. — Dicramim  dongatum  SCHLEICH.  PI.  crypt,  helv.  Cent.  Ill,  n.  27  (1806).  SCHWAEG. 
Suppl.  I,  P.  I.  171,  t.  43  (1811).  BRID.  Mant.  60  (1819),  Bry.  univ.  i,  429  (1826). 
FUNCK  Moost.  28,  t.  19  (1821).  DE  NOT.  Syll.  muse.  215  (1838),  Epil.  briol.  ital.  622 
(1869).  HARTM.  skand.  fl.  BR.  SCH.  Bry.  eur.  fasc.  37-40^.  35,  t.  28  (1847).  C.  MUELL. 
Synops.  i,  365  (1849).  SCHIMP.  Synops.  86  (1860),  2  ed.  88  (1876).  MILDE  Bry. 
siles.  68  (1869).  FERGUSS.  in  Scot.  Nat.  V,  129  (1879).  JURATZ.  Laubm.  Oesterr- 
ung.  45  (1882). 

Die.   sphagnl  WAHLENB.  Fl.  lapp.  337  (1812).      BRID.  Mant.  68  (1819),   Bry.  univ.  i, 
461  (1826). 

Dioicous;  in  compact  cushioned  tufts,  densely  interwoven  with 
ferruginous  tomentum,  yellowish  green  above,  rufo-fuscous  below.  Stems 
3 — 6  in.  high,  slender  fastigiate-branched ;  leaves  secund  and  erecto- 
patent,  appressed  when  dry,  from  an  oblong  lanceolate  base,  subulate 
acute,  entire  or  faintly  toothed  at  apex,  the  wings  convolute  above;  nerve 
narrow,  excurrent,  lower  cells  elongato-rectangular,  the  angular  orange, 
quadrate,  upper  minute  oblong.  Perich.  bracts  cylindraceo-vaginant, 
suddenly  subulate  ;  caps,  on  a  short  pale  brown  seta,  subcernuous,  sub- 
gibbous-ovate,  with  a  distinct  neck,  lightly  striate,  greenish  brown, 
annulus  narrow,  lid  conic  with  a  pale  subulate  beak  longer  than  caps, 
teeth  irregular,  rufous-red. 

Male  pi.  very  slender,  intermixed  with  the  fem.  or  in  separate  tufts  ; 
infl.  secund,  bracts  ovate,  subulate. 

HAB. — Peaty  places  on  mountain  rocks  ;  rare.     Fr.  8.     Corrie  Ardor,  Inver- 
ness (Barker  <S>  Roy,  1870).  Little  Craigandal,  Braemar  (Fergusson  6-  Roy, 
1873). 
Readily  known  by  its  long  straight  stems  densely  compacted  up  to  the 

coma  with  rusty  sponge-like  tomentum,  and  by  its  acute  leaves,  entire  or  with 

a  few  irregular  teeth  at  apex. 

14.    DICRANUM  MONTANUM  Hedw. 

Dioicous ;  in  dark  green  cushioned  tufts.  Leaves  curled  when  dry, 
lanceolate-subulate,  papillose  at  back,  nerved  to  apex,  margin  crenulate 
above.  Caps,  erect,  cylindric-oval,  lid  rostrate,  oblique.  (T.  XXIII,  B.) 

SYN. — Dicranum  montanum  HEDW.  Sp.  muse.  143,  t.  35,  f.  8-13  (1801).  P.  BEAUV.  Prodr.  54 
(1805).  BRID.  Sp.  muse.  I,  200  (1806),  Mant.  65  (1819),  Bry.  univ.  i,  454  (1826).  WEB. 
MOHR.  Bot.  Tasch.  179  (1807).  SCHWAEG.  Suppl.  I,  P.  I,  178  (1811).  WAHLENB.  Fl. 


DICRANACE.E.]  155  [Dicramim. 

lapp.  337  (1812),  Fl.  carp.  345  (1814).  ROEHL.  Deutsch.  fl.  iii,  68  (1813).  FUNCK  Moost. 
29,  t.  20  (1821).  HUEBEN.  Muse.  germ.  252  (1833),  excl.  syn.  HARTM.  Skand.  fl.  BR. 
SCHIMP.  Bry.  eur.  fasc.  37-40,  p.  29,  t.  20  (1847),  C.  MUELL.  Synops.  i,  379  (1849). 
SCHIMP.  Synops.  81  (1860),  2  ed.  82  (1876).  DE  NOT.  Epil.  bri.  ital,  628  (1869).  MILDE 
Bry.  siles.  64  (1869).  HUSN.  mouss.  nord.ouest  52  (1873).  JURATZ.  Laubm.  Oesterr- 
ung.  41  (1882). 

Wcissia  truncicola  DE  NOT.  Epil.  598  (1869). 

Dioicous ;  densely  pulvinate-csespitose,  interwoven  with  ferruginous 
tomentum,  deep  green  above,  pale  ferruginous  below,  i — i  in.  high. 
Leaves  soft,  patent  and  subsecund,  strongly  curled  when  dry,  lanceolate- 
subulate,  subtubulose  in  upper  part,  opake,  papillose  at  back ;  margin 
crenulato-denticulate  and  incurved  in  upper  half,  nerve  lost  at  apex, 
bluntly  toothed  at  back,  i — J  width  of  base,  cells  at  base  lax  and 
elongate,  the  angular  few  thin,  in  5  rows,  upper  minute  quadrate. 
Perich.  bracts  longly  sheathing,  suddenly  subulate  ;  caps,  on  a  pale  brown 
seta,  leptodermous,  oblong,  subcylindric,  slightly  curved,  pale  brown, 
lid  paler,  conical,  rostrate,  long  as  capsule,  teeth  bright  red,  narrow, 
arcuato-incurved. 

Male  pi.  slender,  bracts  from  an  ovate  base,  acuminate  subulate. 
HAB. — About  roots  and  trunks  of  trees  in  woods  ;  rare  and  sterile.     Fr.  7 — 8. 

At  base  of  oaks,  Sutton  Park,  Birmingham  (Bagnall  1870) ! !  Abbey  wood  and  Bostol 
wood,  Kent  (Holmes  1874)!!  Corley  woods,  Coventry;  Crackley  wood,  Kenilworth ; 
Boultbie  wood  and  woods  at  Meridan  shafts,  Fillongley;  Shrawberry  wood,  Shustoke  ; 
Harding's  wood  and  Birchmoor  stumps,  Maxtoke,  and  on  alder  at  Brown's  wood, 
Solihull  (Bagnall  1881)  !  !  Aspley  woods,  Luton,  with  D.  scopariwn  (Saunders  1882)  ! ! 
Den  of  Airlie,  Forfar  (Sim  1876)  !  ! 

Although  much  resembling  D.  flagellare,  this  is  at  once  distingnished  by 
its  denser  deep  green  tufts,  strongly  curled  leaves,  papillose  at  back,  with 
margins  more  extensively  serrulate  and  less  incurved, 

15.     LICRANUM  FLAGELLARE  Hedw. 

Dioicous  ;  densely  tufted,  usually  producing  fragile  axillar  small 
leaved  ramuli ;  leaves  lane,  subulate,  concave,  subsecund,  smooth  at 
back,  nerved  to  apex,  denticulate  at  point ;  caps,  long,  cylindric,  striate, 
lid  with  a  long  oblique  beak.  (T.  XXIII,  C.) 

SYN. — Dicranum  flagcllarc  HEDW.  Muse.  fr.  iii,  i,  t.  i,  f.  i  (1792),  Sp.  muse.  130  (1801). 
SCHRAD.  Spic.  fl.  germ.  59  (1794).  ROTH  Fl.  germ,  iii,  165  (1795).  BRID.  Muse.  rec. 
II,  P.  I,  160  (1798),  Sp.  muse.  I,  178  (1806).  Mant.  58  (1819),  Bry.  univ.  i,  422  (1826). 
ROEHL.  Moosg.  deutsch.  328  (1800),  Deutsch.  fl.  iii,  65  (1813).  P.  BEAUV.  Prodr.  63 
(1805).  SCHULTZ  Fl.  starg.  297  (1806).  WEB.  MOHR  Bot.  Tasch.  173  (1807).  SCHWAEG. 


Suppl.  I,  P.  I,  176  (1811).     VOIT  Muse.  herb.  41  (1812).     WAHLENB.  Fl.  lapp.  337  (1812). 

1817).     FUNCK  Moost.  29,  t.  20  (1821).     HUEBEN.  Muse. 
250  (1833).     HARTM.  Skand.  Fl.     MACKAY  Fl.  hibern.  P.  2,  23   (1836),      BR.   SCH.  Bry. 


MART.  Fl.  cr.  erl,  101  (1817).  FUNCK  Moost.  29,  t.  20  (1821).  HUEBEN.  Muse.  germ. 
250  (1833).  HARTM.  Skand.  Fl.  MACKAY  Fl.  hibern.  P.  2,  23  (1836),  BR.  SCH.  Bry. 
eur.  fasc.  37-40,  p.  30,  t.  21  (1847).  C.  MUELL,  Synops.  i,  381  (1849).  JENS.  Bry.  dan. 
92  (1856).  SCHIMP.  Synops.  82  (1860),  2  ed.  84  (1876).  MILDE  Bry.  siles.  65  (1869). 
HUSN.  mouss.  nord-ouest  52  (1873).  JURATZ.  Laubm.  Oesterr-ung.  41  (1882).  HOLMES 
in  Journ.  Bot.  1874,  p.  225,  t.  149. 
Bryum  flagellare  HOFFM.  Deutsch.  fl.  ii,  37  (1796). 

Dioicous  ;  densely  tufted,  repeatedly  dichotomous,  i — 2  in.  high, 
deep  or  yellow-green  above,  rufescent  below,  interwoven  with  radicles  ; 


DICRANACEJE.]  156  .  [Dicranum. 

generally  giving  off  from  the  axils  of  upper  leaves,  numerous  filiform 
shoots,  with  minute  lanceolate  imbricated  nerveless  leaves.  Leaves 
forming  a  comal  tuft,  lanceolate-subulate,  somewhat  crisped  when 
dry  and  variously  twisted  at  apex,  subfalcate  secund,  convolute- 
concave,  sparingly  serrulate  at  point,  nerve  carinate,  ^  width  of  base, 
vanishing  in  the  apex,  cells  at  base  lax,  elongate,  the  angular  numerous 
thin  quadrate  yellow,  the  upper  very  small  quadrate,  smooth  at  back. 
Perich.  bracts  convolute,  sheathing,  gradually  subulate ;  caps,  on  a  pale 
slender  seta,  elongate,  cylindric,  olivaceous,  striate,  and  when  dry 
remotely  sulcate,  annulus  of  one  series  of  cells  ;  lid  with  a  long  beak, 
oblique,  fuscous. 

Male  pi.  more  slender,  bracts  from  a  broad  concave  base,  suddenly 
acuminate. 

HAB. — Rotten  trunks  of  trees,  especially  of  chestnuts  ;  very  rare.         Fr.  8. 

Abbey  wood  and  Bostol  wood,  Kent  (Holmes  1874) ! !  sterile.     Recorded  also  by  Taylor 
in  Fl.  hibern.  from  Glen-flesk,  Kerry. 

Turner's  D.  flagellave  with  fr.  from  Lough  Bray  is  D.  Scottii,  and 
the  barren  one  from  Cromford  moor  according  to  Wilson  is  Campylopus 
flexuosus.  D.flagellare  much  resembles  the  last  species  but  is  more  robust,  the 
leaves  less  curled,  with  the  apex  only  feebly  toothed  and  smooth  at  back. 
The  flagella  are  usually  absent  from  the  lax  barren  tufts. 

16.    DICRANUM  VIRIDE  (Sull.  Lesq.)  Lindb. 

Dioicous ;  densely  pulvinate,  tomentose  at  base  ;  leaves  erecto- 
patent,  very  fragile,  from  an  oblong  base  lanceolate-subulate,  quite 
entire,  nerve  excurrent ;  caps,  erect,  oblong,  slightly  curved  ;  lid  conico- 
rostrate.  (T.  XXIII,  D.) 

SYN. — Dicr.  thratistophyllum  SPRUCE  MSS.  1850. 

Campylopus    viridis  SULL.   LESQ.   Muse.    bor.   am.   n.  72  (1856)  et  2  ed.  n.  91  (1865). 

SULLIV.  Moss.  un.  st.  103  (1856) ;  Ic.  muse.  30,  t.  18  B  (1864). 
Dicr.  thraustnm  SCHIMP.  MSS.  1862. 
Dicr.  viride  LINDB.  in   Hedwigia  ii,  70  in  obs.  (1863),  in  RAB.  Bryoth.    n.  1061  (1869). 

SCHIMP.  Bry.  eur.  suppl.  fasc.  3-4,  p.  i,  t.  i  (1866),  Synops.  2  ed.  83   (1876).     DE  NOT. 

Epil.  br.  it.  630  (1869).     MILDE   Bry.  siles.  65  (1869).     HOBK.  Syn.  br.  m.  46  (1873). 

JURATZ.  Laubm.  Oesterr-ung.  40  (1882).     HUSN.  mouss.  nord-ouest  2  ed.  47  (1882). 
Dicr.fulvum*  D.  viride  LINDB.  in  HARTM.  Sk.  Fl.  9  ed.  ii,  68  (1864). 

Dioicous ;  pulvinato-csespitose,  rigid,  dull  deep-green  above,  ferru- 
ginous and  tomentose  below,  fastigiate-branched.  Leaves  crowded, 
erect,  longer  and  subfalcate  in  the  coma,  patent,  curved  upward  from 
the  middle,  very  fragile  in  the  upper  part  and  rarely  perfect,  from  an 
oblong  lineal-lanceolate  base,  subulate,  entire ;  nerve  flat,  ->  width  of 
base,  excurrent  in  a  smooth  channelled  subula ;  cells  shortly  rectan- 
gular, lax  and  chlorophyllose  at  base,  except  the  middle  ones  which  are 


DICRANACE^B.]  157  [Dicranum. 

hyaline,    small  and  quadrate   above.      Perich.  bracts   elongate,   inner 
longly  sheathing,  suddenly  subulate  ;  seta  yellow,  capsule  oblong,  erect 
slightly  asymmetric,  yellowish  brown,  lid  conico-rostrate,  yellow. 
HAB. — Trunks  of  trees  and  old  rails  ;  very  rare.         Fr.  7 — 8. 

On  decaying  oak  rails  |  mile  from  Abbot's  Bromley,  Stafford,  sterile  (Bloxam  1864)  ! ! 

Intermediate  between  D.  montanum  and  Scottii,  and  remarkable  for  the 
great  brittleness  of  the  leaves.  D.  strictum,  SCHLEICH,  and  fragilifolium,  LINDB. 
are  also  closely  allied  species.  This  plant  may  have  been  imported  attached 
to  the  wood  on  which  it  was  found,  and  thus  its  very  limited  area  accounted 
for ;  it  is  scattered  sparingly  throughout  Central  Europe  from  Sweden  and 
Finland  to  Italy. 

17.     DICRANUM  SCOTTII    Turner. 

Dioicous ;  densely  tufted,  leaves  patent,  lane. -subulate,  entire,  not 
crisped  when  dry,  the  nerve  excurrent ;  caps,  elongate-elliptic,  not 
striate,  lid  obliquely  rostrate,  teeth  short,  nearly  entire.  (T.  XXIII,  E.) 

SYN. — Dicr.  Scottianum  TURN.  Muse.  hib.  75,  t.  6.  f.  i  (1804).  SMITH  Fl.  br.  iii,  1226  (1804), 
Eng.  Bot.  t.  1391  et  1977  p.p.  BRID.  Sp.  muse.  I,  209  (1806),  Bry.  univ.  i,  455  (1826). 
HOOK.  TAYL.  Muse.  br.  56,  t.  18  (1818).  GRAY  Nat.  arr.  br.  pi.  i,  737  (1821).  HOOK. 
Fl.  Scot.  P.  2,  133  (1821).  MACK.  Fl.  hibern.  P.  2,  23  (1836).  BR.  SCH.  Bry.  eur.  fasc. 
37-40,  p.  31,  t.  23  (1847).  RABEN.  Deutsch.  kr.  fl.  ii,  P.  3,  144  (1848).  C.  MUELL. 
Synops.  i,  381  (1849).  WILS.  Bry.  Br.  75,  t.  18  (1855).  SCHIMP.  Synops,  83  (1860), 
2  ed.  85  (1876).  BERK.  Handb.  br.  m.  277  (1863).  MILDE  Bry.  siles.  67  (1869).  HOBK. 
Syn.  br.  m.  46  (1873).  HUSN.  Mouss.  nord-ouest  52  (1873). 
Campylopus  Scottianus  BRID.  Mant.  72  (1819). 

Dicranum  flagellare  TURN.  Muse.  hib.  61  (1804).  SM.  Eng.  Bot.  t.  1977  p.p.  HOOK.  Br. 
fl.  ii,  41  (1833). 

Dioicous ;  in  dense  rounded  tufts,  yellow  green  above,  fuscescent 
below,  with  ferruginous  tomentum.  Stem  erect  2 — 3  in.  high,  dense- 
leaved.  Leaves  patent  and  subsecund,  rigid,  rather  glossy,  flexuose  at 
apex  when  dry,  quite  entire,  lanceolate-subulate  ;  nerve  thick,  excur- 
rent ;  cells  small  and  quadrate  above,  elongated  at  base,  the  angular  lax, 
quadrate,  brown.  Perich.  bracts  sheathing,  suddenly  subulate,  seta 
elongated  reddish  yellow  ;  caps,  elongate  elliptic,  with  a  long  neck,  often 
subincurved,  tawny  brown,  not  striate,  cylindric  and  subplicate  when 
dry,  small-mouthed  ;  annulus  simple,  lid  pale,  obliquely  rostrate  ;  teeth 
short,  nearly  entire  or  2 — 3-fid  at  apex  only,  fragile,  pale  red. 

Male  plants  in  distinct  tufts,  slender,  more  branched  ;  outer  bracts 
lanceolate  subulate. 
HAB. — Shady  sub-alpine  rocks  ;  not  common.         Fr.  7 — 8. 

Swanlibar,  Ireland  (Scott).  Blackwater  bridge  (Taylor).  Glena  and  Cromagloun, 
Killarney  (Carroll  1861).  Common  in  Sussex  on  sandstone  (Mitten).  Dewerstone  rocks 
and  Plymouth  (Holmes  1867)  !  !  Tarbert,  Cantire  and  Colintraive,  Argyle  (Hunt  1866) ! ! 
Loch  Maree  (Hunt  1866).  Lough  Bray  and  Kylemore,  Galway  (Moore).  On  an  old 
tree  near  O'Sullivan's  cascade  (Schimper  1865). 

This  very  pretty  moss  appears  to  be  more  prevalent  with  us  than  in  any 
other  part  of  Europe,  unless  it  has  been  overlooked  for  D.  flagellare  ;  from  this 


D  ICRANACE^E.]  158  [Dicmnum. 

it  may  be  readily  known  by  its  very  dense  acute  entire-pointed  leaves  and 
stout  excurrent  nerve.  From  D.  fuscescetis,  which  it  also  resembles,  its  very 
acute  entire  smooth  subula  will  always  separate  it. 

1 8.     DICRANUM   SAUTERI    BY.   Sch. 

Dioicious  ;  in  large  soft  silky  tufts ;  leaves  falcato-secund,  lanc.- 
subulate,  entire,  nerve  one-fifth  width  of  base ;  caps,  elliptico-cylindric, 
lid  obliquely  rostrate.  (T.  XXIV,  A.) 

SYN. — Dicranum  Sauteri  BR.  SCH.  Bry.  eur.  fasc.  37-41,  p.  33,  t.  24  (1847).  C.  MUELL.  Synops. 
i,  375  (1849).  SCHIMP.  Synops.  85  (1860),  2  ed.  87  (1876).  DE  NOT.  Epil.  bri.  ital.  626 
(1869).  MILDE  Bry.  siles.  68  (1869).  JURATZ.  Laubm.  Oesterr.-ung.  43  (1882). 

Dioicous ;  in  dense  cushioned  glossy  green  tufts,  becoming  fulvous, 
fuscous  at  base,  with  brown  tomentum.  Leaves  very  dense,  rather  rigid, 
secund  or  falcate,  channelled,  lanceolate,  gradually  subulate,  entire  or 
with  a  few  teeth  at  point,  nerve  one-fifth  width  of  base,  excurrent,  cells 
at  base  narrow  and  elongated,  angular  lax,  quadrate,  brown,  upper 
elongated.  Perich.  bracts  sheathing,  longly  subulate,  caps,  cylindra- 
ceous,  erect,  slightly  asymmetric,  annulus  simple,  lid  conic,  obliquely 
rostrate,  long  as  capsule,  teeth  red,  cleft  one-third. 

Male  plant  shorter,  slender. 

Var.  ft.  curvulum  Lindb. 

Capsule  horizontal,  more  or  less  curved. 

HAB. — Sub-alpine  rocks  ;  very  rare.         Fr.  8 — 9. 

The  var.  ^8.  only  is  with  some  doubt  admitted  as  British,  and  its  claim 
as  such  rests  on  specimens  in  a  collection  of  the  late  A.  O.  Black,  unnamed 
and  mixed  with  D.  molle  andfukatum,  the  labels  bearing  localities  in  Braemar 
(Cairn  Taggart,  Loch-na-Neem  and  Freuch  Corrie) ;  Prof.  Lindberg  identi- 
fied it  with  a  precisely  similar  form  found  in  the  Pyrenees.  The  Marchese 
Bottini  regards  D.  Sauteri  as  a  variety  of  D.  longifolium,  from  which  it  seems 
to  me  to  be  sufficiently  distinct  in  the  leaf-base  and  section  of  nerve. 

19.    DICRANUM  LONGIFOLIUM  Ehrk. 

Dioicous ;  in  large  soft  silky  pale  green  tufts  ;  leaves  falcato-secund, 
lane. -subulate,  serrulate  above  at  back  and  margin,  nerve  one-third 
width  of  base ;  caps,  cylindraceous,  lid  pale,  obliquely  subulate.  (T. 
XXIV,  B.) 

SYN. — Dicranum  longifolium  EHRH.  Dec.  crypt,  n.  114  (1786).  HEDW.  muse.  fr.  iii,  24.  t.  9 
(1792),  Sp.  muse.  130  (1801).  ROTH  Fl.  germ  iii,  P.  I,  166  (1795)-  BRID.  muse.  rec.  II, 
P.  I,  161  (1798),  Sp.  muse.  I,  183  (1806),  Mant,  60  (1819),  Bry.  univ.  i,  430  (1826). 
SWARTZ  muse.  suec.  34  (1799).  ROEHL.  Moosg.  deutsch.  334  (1800),  Deutsch.  fl.  iii,  66 
(1813).  SCHULTZ  Fl.  starg.  297  (1806).  WEB.  MOHR  Bot.Tasch.  172  (1807).  SCHWAEG. 
Suppl.  I,  P.  I,  176  (1811).  VOIT  muse.  herb.  42  (1812).  WAHLENB.  Fl.  carp.  344 
(1814).  FUNCK  Moost.  29,  t.  20  (1821).  HUEBEN.  muse.  germ.  248  (1833).  DE  NOT. 
Syll.  muse.  215  (1838),  Epil.  bri.  ital.  625  (1869).  HARTM.  Skand.  Fl.  BRUCH  SCHIMP. 
Bry.  eur.  fasc.  37-40,  p.  32,  t.  25  (1847).  RABEN.  Deutsch,  kr.  fl.  ii,  P.  3,  144  (1848). 
C.  MUELL.  Synops.  i,  371  (1849).  SCHIMP.  Synops.  84  (1860),  2  ed.  86  (1876).  MILDE 
Bry.  siles.  67  (1869).  HOBK.  Syn.  br.  m.  46  (1873).  JURATZ.  Laubm.  Oesterr.-ung.  43 
(1882). 
Dicr.  Stirtoni  WILS.  MSS.  a  short  leaved  form. 


DICRANACE.E.]  159  \_Dicranum. 

Dioicous ;  in  soft  lax  silky  pale  green  tufts,  fuscous  below,  black  at 
base ;  stem  arcuato — or  geniculato — ascending,  slender,  dichotomous, 
falcate  at  apex,  sparingly  radiculose.  Leaves  long,  rather  rigid,  falcato- 
secund,  from  a  lanceolate  base,  longly  capillaceo-subulate,  subtubulose 
above,  nerve  very  broad,  ^  width  of  base,  occupying  all  upper  part  of 
leaf,  serrate  at  back  and  margin,  cells  at  base  small  narrow,  the  angular 
lax,  brownish,  upper  elongated  rectangular.  Inner  perich.  bracts  con- 
volute-sheathing, abruptly  apiculate  with  the  excurrent  nerve,  caps, 
erect,  elongato-cylindraceous,  straight  or  subincurved,  estriate,  fuscous  ; 
lid  pale,  with  a  subulate  beak,  long  as  capsule,  teeth  small,  red,  deeply 
cleft. 

Male  plant  more  slender,  bracts  falcate,  innermost  shortly  acumi- 
nate. 
HAB. — Stones  and  trunks  of  trees  in  mountains  ;  rare.         Fr.  8— 9. 

Maidenbower  Crags,  Dumfries,  with  Grimmia  patens  (Herb.  Kew).     Ben  Lawers  (Stirton 
1865) ! !     Glen  Prosen  (Fcrgusson  1868)  ;  all  sterile. 

Next  to  this  comes  another  European  species,  Dicr.  albicans,  BR.  SCH. 
(D.  eiierve,  THED.),  which  has  a  still  greater  development  of  nerve,  and  in  fact 
constitutes  a  transition  to  Leucobryum. 

20.    DICRANUM  ASPERTILUM  Mitt. 

Dioicous ;  in  silky  tufts,  tomentose  at  base ;  leaves  falcate  or 
flexuose,  subovate  at  base,  longly  subulate  with  the  serrulate  nerve, 
spinulose  at  back ;  caps,  erect,  oval-cylindric,  lid  straight,  rostrate. 
(T.  XVII,  H.) 

SYN. — Dicranodontium  asperuhim  p.p.  WILS.  in  Kew  Journ.  Bot.  IX,  296  (1857). 

Dicramim  asperulum  MITT.  Journ.  Lin.  Soc.  i,  Suppl.  22  (1859).      RABENH.  Bryoth.  eur. 

n.  940. 
Dicranodontium  aristatum  SCHIMP.  Synops.  695  (1860),  2  ed.  99  (1876).     Bry.  eur.  suppl. 

fasc.  MI,  t.  i  (1864).     MILDE  Bry.  siles.  75  (1869). 
Dicranodontium  lutescens  SCHIMP.  MSS.  =  ? 
Dicramim  Dickieanum  WILS.  MSS. 

Dicranod.  longirostre  var.  /?.  aristatum  JURATZ.  Laubm.  Oesterr.-ung.  52  (1882). 
Didymodon  aristatus  LINDB.  Muse,  scand.  25  (1879). 

Dioicous ;  in  lax  soft  tufts  2 — 3  in.  high,  yellow  green  above,  pale 
brown  or  ferruginous  below,  with  fine  pale  or  rufous  radicles  at  base  ; 
stem  decumbent  at  base,  very  slender.  Leaves  remote  and  ovate- 
acuminate  at  base,  becoming  longer  and  closer  upward,  from  an  oblong- 
lanceolate  concave  base,  continued  into  a  long  channelled  subflexuose 
arista,  with  6— 10  ridges  at  back,  serrulate  at  margin,  the  highest 
broader  and  more  concave,  with  the  margin  from  the  middle  of  the  base 
upward  sharply  toothed  and  incurved,  the  arista  very  long,  secund 
arcuate,  formed  of  the  nerve  which  is  sulcate  and  spinulose  at  back. 


DICRANACE.E.]  160  [Dicranum. 

Nerve  £ — i  width  of  base ;  cells  lax  rectangular  and  pellucid  at  base,  the 
angular  large  hyaline  numerous,  the  upper  chlorophyllose,  the  teeth 
hyaline.  Perich.  bracts  like  the  leaves,  very  broad  at  base,  sheathing ; 
seta  elongated  yellow  erect,  twisting  to  the  left  when  dry,  capsule  erect 
pale  brown,  cylindric-oval,  contracted  below  the  mouth,  plicate  when 
old,  lid  conic  with  a  subulate  nearly  straight  beak  about  as  long  as 
capsule ;  teeth  pale  red,  cleft  halfway  into  two  unequal  legs. 

Male  infl.  gemmaceous,  inner  bracts  suddenly  shortly  acuminate, 
the  nerve  thin  or  scarce  evident. 
HAB. — On  sandstone  rocks  in  mountain  districts  ;  always  sterile. 

Lennox  castle,  Campsie  and  Ben  Ledi  (McKinlay  1861)  !  !  Ben  Mac  Dhui  (Dickie  1861)  ! 
Mains  Castle,  New  Kilpatrick  (Gait  1865)  !  !  Ben  Voirlich  (McKinlay  1865)  ! 
Milngavie,  Glasgow  (Stirton  1864)!  Bach-na-gairn,  Clova  (Fergusson  1868).  Ben 
Hope,  Sutherland  (Howse  1871)  !  !  Debris  of  rocks  by  Loch  Avon,  Braemar 
(Hunt  1871)  !  ! 

Very  unsettled  opinions  have  been  held  by  bryologists  with  respect  to 
this  moss  and  the  next,  probably  influenced  to  some  extent  by  the  fact  that 
they  frequently  grow  together,  and  that  D.  asperuhim  is  variable  in  the  rough- 
ness and  direction  of  the  leaves,  so  that  some  forms  are  difficult  to  discrimi- 
nate, not  only  from  D.  uncinatum,  but  still  more  from  Didymodon  demidatus, 
which  it  closely  resembles  in  structure.  The  clear  definition  of  the  species 
by  Mr.  Mitten  in  his  Musci  Indise  or.  drawn  up  from  fertile  specimens  (with 
which  the  British  plant  is  certainly  identical),  shows  that  however  closely  in 
habit  and  leaf-structure  it  resembles  Didym.  demidatus,  it  cannot  be  congeneric, 
for  as  a  genus  that  must  stand  on  the  form  of  its  peristomial  teeth,  but  those 
of  D.  asperulum  are  perfectly  dicranoid.  We  may  contrast  the  species  thus  : — 

D.  asperulum.  Dull  green,  stems  slender  scarcely  tomentose,  leaves  dense,  variously 
flexuose,  erecto-patent,  uppermost  slightly  falcato-secund,  margin  of  basal  wing  serrated, 
subula  closely  serrated,  scabrous  at  back. 

D.  uncinatum.  Yellow  green,  rather  glossy,  stems  robust  tomentose,  leaves  more  distant, 
all  regularly  falcato — or  circinato — secund,  margin  of  basal  wing,  entire,  subula 
distantly  denticulate  in  upper  part,  smooth  at  back. 

Didym.  demidatus.  Known  at  once  by  its  large  basal  auricles,  with  large  lax  hyaline 
cells. 

An  elaborate  paper  by  Milde,  "  Ueber  Dicranodontium,"  in  Botan.  Zeitung, 
1870,  pp.  392  and  414,  is  well  worth  consulting,  although  we  differ  from  some 
of  his  conclusions. 

21.  DICRANUM  UNCINATUM  (Harv.)  C.  Muell. 
Dioicous  ;  tall  glossy  yellow-green  ;  leaves  strongly  falcato-secund, 
from  a  dilated  base,  longly  subulate,  denticulate  toward  apex,  cells  at 
base  lax  quadrate,  with  a  border  becoming  broader  upward  of  very 
narrow  elongated  ones;  caps,  erect  subcylindric,  lid  rostrate.  (T. 
XXIV,  C.) 

Svn.—Thysanomitrium  uncinatum  HARVEY  in  HOOK.  Ic.  pi.  rar.  i,  t.  22,  f.  5  (1837),  et  Lond 
Journ.  Bot.  ii,  p.  6  (1840). 

Dicranum  winatum  C.  MUELL.  Synops.  i,  404  (1849).      MITT,  in  Journ.  Lin.  Soc.  i, 


DICRANACE^;.]  161  [Dichodontiwn. 

Dicranum  circinatum  WILS.  Bry.  brit.  76  (1855).     SCHIMP.  Bry.  eur.  Suppl.  fasc.  III-IV,  t. 

4  (1866).     HOBK.  Syn.  br.  m.  47  (1873). 

Dicranodontlum  asperulum  p.p.  WILS.  in  Kew  Journ.  Bot.  IX,  296  (1857). 
Dicranodontium  circinatum  SCHIMP.  Synops.  2  ed.  100  (1876). 
Dicranum  comptum  SCHIMP.  Synops.  2  ed.  97  (1876). 

Dioicous  ;  laxly  caespitose,  glossy  golden  green  or  fulvous.  Stem 
slender  flexuose,  2  —  5  in.  high,  dichotomous,  geniculato-ascending,  more 
or  less  rufo-tomentose.  Leaves  rather  distant,  enlarging  upward,  lowest 
lanceolate,  upper  very  long,  secund  circinate,  from  a  decurrent  sheathing 
base  slightly  inflated  at  the  angles,  suddenly  longly  subulate,  canalicu- 
late ;  nerve  i  width  of  base,  of  3  strata  of  cells,  produced  into  a  very 
long  arista,  denticulate  at  back  and  margin  ;  cells  at  angles  and  mid- 
base  large  thin  hyaline,  hexagono-rectangular,  marginal  in  4  —  8  rows  of 
very  long  narrow  green  cells.  Perich.  bracts  from  a  laxly  areolate, 
shortly  sheathing  base,  gradually  capillaceous,  seta  short,  fulvous, 
straight  or  flexuose,  caps,  erect  subcylindric,  castaneous-brown,  lid  with 
a  long  beak,  teeth  purple,  cleft  half  way,  the  legs  subulate. 
HAB.  —  Wet  grassy  places  on  mountains  ;  sterile,  not  common. 

Ben  Voirlich  by  Loch  Lomond  (Greville  1825)  !  !  Ben  Mac  Dhui  (Davies  1861)  !  !  Ben 
Nevis  (McKinlay  1862)  !  Ben  Challum,  Perthshire,  with  D.  asperulum  (McKinlay 
1863)  !  !  Loch  Maree  (Hunt  1866)  !  !  Glen  Phee,  Clova  (Fcrgusson  1867)  !  ! 

The  basal  areolation  is  much  firmer  than  in  the  last  species,  and  the 
marginal  border  of  very  narrow  cells  much  more  distinct.  Although  Harvey 
placed  the  species  in  the  genus  Thysanomitrium,  he  must  have  done  so  at 
random,  as  the  calyptra  has  never  been  described. 

Subf.  5.  ONCOPHOREsE.  Plants  densely  or  laxly  tufted;  leaves 
chlorophyllose,  opake,  usually  papillose,  without  enlarged  basal  angular 
cells,  the  upper  cells  minute,  quadrate.  Capsule  oblong  or  subcylindric, 
frequently  striate,  usually  with  a  strumose  neck. 

14.  DICHODONTIUM  SCHIMP. 

Bry.  eur.  Coroll.  p.  12  (1855). 

Plants  laxly  tufted,  soft.  Leaves  squarrose,  crenato-serrate, 
papillose,  opake,  cells  rectangular  at  base,  quadrate  above,  chlorophyl- 
lose. Calyptra  large,  cucullate  ;  capsule  solid,  pachydermous,  smooth, 
lid  rostrate,  peristome  large,  teeth  16,  cleft  below  the  middle  into  2  —  3 
legs,  closely  trabeculate. 

Inhabiting  wet  rocks  and  stones  by  streams. 

Der.  —  ^xa(a  ^0  divide,  o^ovs  a  tooth. 


CLAVIS  TO  THE  SPECIES. 

Capsule  cernuous,  gibbose  ovate  ;  leaves  serrulate  at  apex.  pellucidum. 

Capsule  erect,  subcylindric  ;  leaves  serrated  in  upper  half.  flavescens. 


DICRANACEJE.]  162  [Diclwdontium. 

i.    DICHODONTIUM  PELLUCIDUM  (L.)  Sc/w»/A 

Dioicous ;  laxly  tufted ;  leaves  squarrose,  flexuose,  lineal-lanceolate, 
entire  or  crenulate  at  point,  obtuse,  papillose.  Caps,  cernuous,  ovate, 
lid  rostrate.  (T.  XXIV,  D.) 

SYN. — Muscus  polytrichoides  angustifolius  pellucidus  ramosus.     PLUK.  in    RAY   Synops.  st.  br. 
app.  241  (1690) ;  Phytogr.  i,  t.  49,  fig.  i  (1691). 

Bryum  erectis  capitiilis  subrotundis  fuscis,  jol.  minoribus  pellucidis  rugosis  DILL,  in  RAY 
Syn.  3  ed.  96  (1724) ;  Var. 

Bryum  palustre  pellucidum,  capsulis  ctfol'iis  brcvibus  rccurvis  DILL.  Hist.  Muse.  364,  T.  46, 
f.  23  (1741) ;  (excl.  syn.  et  var.  ramosa.)  et  Herb. 

Bryum  pcllucidum  L.  Sp.  plant,  ii,  1118  (1753)  p.p.  et.  excl.  var.  ft.  Syst.  nat.  ii,  701,  Syst. 
veg.  948.  HUDS.  Fl.  angl.  407  (1762).  NECK.  Meth.  muse,  204  (1771).  LIGHTF.  Fl. 
scot,  ii,  724  (1777).  ABBOT  Fl.  Bedf.  237  (1798).  HULL.  Br.  fl.  P.  2,  264  (1799). 

Dicranum  pcllucidum  HEDW.  Fund.  muse,  ii,  92  (1782).  TIMM  Pr.  fl.  megap.  n.  786  (1788). 
ROTH  op.  c.  177,  BRID.  muse.  rec.  II,  P.  I,  176  (1798),  Sp.  Muse.  I,  192  (1806),  Mant.  62 
(1819),  Bry.  univ.  i,439  (1826).  SWARTZ  Muse.  suec.  35  (1799).  ROEHL.  Moosg.  deutsch. 
355  (1800),  Deutsch.  fl.  iii,  69  (1813).  HEDW.  Sp.  muse.  142  (1801).  SMITH  Fl.  brit.  iii, 
1223  (1804),  Eng.  bot.  1. 1346.  TURN.  Muse.  hib.  68  (1804).  P.  BEAUV.  Prodr.  54  (1805). 
WEB.  MOHR  Bot.  Tasch.  183  (1807).  SCHWAEG.  Suppl.  I,  P.  I,  181,  t.  48  (1811).  VOIT 
Muse,  herbip.  49  (1812).  MART.  Fl.  cr.  erl.  103  (1817).  Hook.  Tayl.  Muse.  brit.  55, 
t.  17  (1818).  GRAY  Nat.  arr.  br.  pi.  i,  736  (1821).  HOOK.  Fl.  scot.  P.  2.  133  (1821), 
Br.  fl.  ii,  40  (1833).  FUNCK  Moost.  30,  t.  21  (1821).  ZENK.  DIETR.  Muse,  thuring.  II, 
n.  29  (1822).  HUEBEN.  muse.  germ.  269  (1833).  MACK.  Fl.  hib.  P.  2,  23  (1836).  DE 
NOT.  Sy.ll.  muse.  208  (1838).  HARTM.  Skand.  fl.  BR.  SCHIMP.  Bry.  eur.  fasc.  37-40, 
p.  16,  t.  4  (1847).  RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  138  (1848).  WILS.  Bry.  brit.  67, 
t.  17  (1855).  HUSN.  Mouss.  nord-ouest  48  (1873).  HOBK.  Syn.  br.  m.  41  (1873). 

Mniutn  pelluccns  GMEL.  Syst.  nat.  ii,  1328  (1791).  LAICH.  PI.  eur.  476  (1794).  WITH. 
Bot.  arr.  br.  veg.  3  ed.  iii,  802  (1796). 

Dicranum  aquaticum  EHRH.  cr.  exsic.  n.  213  (1790).  ROTH  Fl.  germ,  iii,  P.  I,  177  (1800). 
BRID.  Muse.  rec.  II,  P.  I,  158  (1798). 

Bryum  aquaticum  HOFFM.  Fl.  germ,  ii,  n.  35  (1796). 

Angstroemia  pellucida   C.   MUELL.  Synops.  ii,  606  (1851).    JENS.  Bry.  dan.  99  (1856). 

Dichodontium  pcllucidum  SCHIMP.  Bry.  eur.  Coroll.  12  (1855).  Synops.  65  (1860),  2  ed.  66 
(1876).  BERK.  Handb.  br.  m.  284  (1863).  MILDE  Bry.  siles.  55  (1869).  DE  Nor.  Epil. 
bri.  ital.  489  (1869).  LINDB.  in  Bot.  Notiser  1878  p.  115,  JURATZ.  Laubm.  oest.-ung. 
28  (1882). 

Tridontium  pcllucidum  LINDB.  in  Oefv.  vet.  ak.  forh.  xxi,  230  (1864). 

Didymodon  Woodii  SCHIMP.  MSS. 

Dioicous ;  in  lax  tufts  i — 3  in.  high,  light  green  above,  dull  lurid 
green  below.  Stem  flexuose,  erect,  sparingly  branched  with  a  long 
innovation  at  the  perichaetium,  radiculose  below.  Leaves  laxly  imbri- 
cated, erecto-flexuose,  appressed  and  twisted  when  dry,  from  an  oblong 
sheathing  pale  pellucid  base,  squarroso-recurved,  lineal-lanceolate,  more 
or  less  obtuse  and  cucullate,  canaliculate,  slightly  undulate  at  margin, 
entire  or  more  or  less  serrated  towards  point,  opake,  papillose  on  both 
sides  ;  nerve  stout,  vanishing  at  apex,  crenulate  at  back  near  the  point ; 
cells  at  base  elongated  rectangular  pellucid,  above  minute  quadrate,  deep 
green,  strongly  papillose  at  back.  Perich.  bracts  like  the  leaves  but 
more  sheathing  at  base,  seta  stout,  pale  yellow,  short  rigid ;  caps, 
cernuous,  pachydermous,  gibbose-ovate  or  subglobose,  subsymmetric, 
smooth,  with  scarce  any  neck,  pale  olive  or  reddish-brown,  black  when 


DICRANACE^.]  163  [Dichodontium. 

old,  not  annulate  ;  lid  large  convex  conic,  obliquely  rostrate,  orange ; 
teeth  large,  2 — 3-fid,  blood-red,  orange  above,  punctate-striolate  below 
middle,  papillose  at  apex. 

Male  pi.  like  the  female,  infl.  terminal,  gemmiform,  bracts  from  a 
broad  base  very  concave,  broadly  linear-subulate,  nerve  excurrent. 

HAB. — Wet  rocks  and  stones  about  the  beds  of  streams  and  by  waterfalls ; 

not  uncommon.         Fr.  10 — n. 

This  moss  varies  considerably  in  the  form  and  size  of  the  capsule  and 
length  of  the  lid,  but  in  all  the  specimens  that  have  come  before  us  we  have 
seen  no  transition  to  the  next  species.  In  habit  it  much  resembles  Anisothe- 
cium  squarrosum  which  may  always  be  distinguished  by  its  smooth  leaves  and 
lax  areolation.  According  to  Lindberg  the  genus  Tridontium  belongs  to 
Tortulaceae,  standing  near  Scopelophila  MITT.  (Mevceya  SCHIMP.) 

Var.  (3.  fagimontanum  (Brid.) 

Plants  shorter  more  dense  with  shorter  branches  ;  leaves  shorter,  more 
obtuse,  scarcely  recurved  ;  capsule  smaller. 

SYN. — Dicranum  pellucidum  var.  ft.  fagimontanum  BRID.  Sp.  muse.  I,  192  (1806),  Bry.  univ. 

i,44i. 
Dichod. pellucidum  var.  p.  fagimontanum  SCHIMP.  et  auct.  cit. 

HAB. — Similar  localities  in  more  alpine  districts. 

Ben  Lawers  (Braithwaite  1865)  ! !     Sandstone  rocks  at  Clifton  Junction  (Holt  1883)  !  ! 

Variable  in  density  and  height,  sometimes  only  reaching  half  an  inch, 
but  readily  distinguished  by  its  short  obtuse  leaves. 

2.     DICHODONTIUM    FLAVESCENS  (Dicks.)  Lindb. 
Dioicous ;  laxly  tufted,  scarcely  branched  ;  leaves  lineal-lanceolate, 
more  distant,  serrate  in  upper  half,  less  obtuse.     Caps,  erect  or  a  little 
inclined,  cylindraceous,  lid  rostrate.     (T.  XXIV,  E.) 

SYN. — Muscus  polytrichoides  elatior,  foliis  angustis  pellucidis  et  fere  membranaceis.      PLUK.    in 
RAY  Synops.  app.  240  (1690) ;  Phytog.  i,  t.  44,  fig.  7  (1691),  Almag.  hot.  257  (1696). 

Bryum  ercctum,  capit.  subrotundis  fuscis  ;  fol.  minor ibus  pellucidis  rugosis.     DILL,  in  RAY 

Syn.  3  ed.  96  (1724),  excl.  var. 
Bryum  flavescens  DICKS.  Fasc.  pi.  cr.  II,  4,  t.  4,  fig.  5  (1790).     GMEL.  Syst.  nat.   13  ed. 

ii,  P.  2,  p.  1338  (1791).    WITH.  Bot.  arr.  Br.  veg.  3  ed.  iii,  830  (1796).     HULL  Br.  Fl. 

P.  2,  254  (1799). 

Bryum  lineare  DICKS.  Fasc.  Ill,  6,  t.  8,  fig.  2  (1793). 

Dicranum  flavescens  TURN.  Muse.  hib.  70  (1804).  SM.  Fl.  brit.  iii,  1224  (1804),  Eng.  Bot. 
t.  2263.  BRID.  Sp.  muse.  I,  196  (1806),  Mant.  63  (1819).  HOOK.  TAYL.  Muse.  brit.  98, 
t.  17  (excl.  syn.  W.  M.  Schwg.  et  Funck.)  1818.  GRAY  Nat.  arr.  br.  pi.  i,  736  (1821). 
HOOK.  Fl.  scot.  P.  2,  132  (1821),  Br.  Fl.  ii,  40  (1833).  MACK.  Fl.  hib.  p.  2,  22  (1836). 

Dicr.  gracilescens  ft.  flavescens  BRID.  Bry.  univ.  i,  442  (1826).      HUEBEN.  Muse.  germ.  255 

(1833). 
Dicr.  pellucidum  var.  y.  serratum  BR.  SCHIMP.  Bry.  eur.  fasc.  37 — 40,  p.  16,  t.  4  y.  (1847). 

WILS.  Bry.  brit.  68,  t.  17  (1855).     HOBK.  Syn.  br.  m.  41  (1873). 

Angstrcemiapellucida  var.  y.  serrata  C.  MUELL.  Synops.  ii,  607  (1851). 

Dichodontium  pellucidum  var.  y.  serratum  SCHIMP.  Bry.  eur.  Coroll.  13  (1855),  Synops.  66 
(1860),  2  ed.  66  (1876).  MILDE  Bry.  sil.  55  (1869).  JURATZ.  Laubm.  Oesterr.-ung.  28 
(1882). 

Dichodontium  flavescens  LINDB.  in  Botan.  notiser  1878,  p.  113,  et  Muse,  scand.  27  (1879). 


DICRANACEJE.]  164  [Oncophorus. 

Dioicous;  laxly  tufted,  slightly  branched,  somewhat  glossy,  dull 
yellow  green,  resembling  D.  pellucidum.  Leaves  less  crowded,  longer 
flatter  and  narrower,  gradually  tapering  to  a  more  acute  flat  point, 
crenato-serrate  in  the  upper  half,  basal  cells  more  elongated,  the  quad- 
rate ones  forming  a  very  slight  border  to  the  basal  wing,  and  not  coming 
so  low  down  in  the  leaf,  scarcely  papillose.  Capsule  erect  or  slightly 
inclined,  oblong,  subcylindric,  pale  brown,  contracted  below  the  mouth 
when  dry,  lid  with  an  oblique  acute  beak ;  peristome  paler  with  longer 
teeth,  not  longitudinally  punctate-striolate  below  middle,  nor  papillose 
at  apex. 
HAB. — On  stones  and  gravel  by  banks  of  streams.  Fr.  9. 

Forfar  (Don  1802).  Bantry  (Miss  Hutchins  1809).  R.  Dargle  (Taylor  1812).  Collington 
(Greville).  Appin  (Carmichael).  Nant-y-Flydd  (Wilson  1833).  Mill  Dingle,  High 
cliff,  Rowsley  and  Matlock  (Wilson  1834) !  Bolton  woods  and  Stanley  Clough  (Nowell)  \ 
By  the  Calder  (Gardiner  1834).  By  the  Esk  and  Wharfe,  Yorks.  (Spruce  1842) ! ! 
Hungershall  rocks,  Tunbridge  Wells  (Mitten).  Thirsk  and  Wensleydale  (Baker  1852)  ! 
Windermere  (Clowes  1854) !  Woodend  (Sidebotham  1858) !  Fin  glen  and  Dunoon 
(Hunt  1865)  ! ! 

The  leaves  are  less  complicate  than  in  the  last  species,  the  areolation 
laxer  with  the  dorsal  papillae  only  mammosely  protuberant. 

Oreoweissia  sevvulata  (Funck)  Schimp.  has  been  recorded  by  Dr.  Stirton 
from  Ben  Lawers,  but  no  specimens  have  come  before  us.  Its  head-quarters 
are  the  Italian  alps  and  Austrian  Tyrol. 

ONCOPHORUS  BRIDEL. 

(Bryol.  univ.  i,  389  (1826) ). 

Plants  in  dense  cushioned  tufts,  dichotomously  branched.  Leaves 
long,  comant,  crisped  when  dry,  opake,  with  minute  quadrate  areolation, 
more  or  less  papillose.  Calyptra  inflato-cucullate.  Capsule  erect  or 
subincurved,  oval  or  oblong,  with  a  short  neck,  usually  strumose,  some- 
times equal,  striate,  sulcate  when  dry,  rarely  smooth  ;  teeth  lanceolate, 
cleft  into  two  unequal  legs,  or  subulate,  or  more  or  less  imperfect. 
Inhabiting  mountain  rocks. — Der.  oy/cos  a  swelling,  <£opeo>  to  bear. 

This  expressive  name  Oncophorus  was  first  mentioned  by  Bridel  in  his 
Mantissa,  p.  53  (1819),  as  a  section  of  Dicranum  for  all  the  strumose  fruited 
species,  and  in  his  Bryologia  established  as  a  genus,  including  besides  the 
principal  species  retained  here,  Dicranella  cerviculata  and  squarrosa,  Dicranum 
Starkei,  falcatum,  &c.  In  1801  appeared  Cynontodium  Hedwig  (altered  by  Bridel 
to  Cynodontium]  for  the  two  species  of  Swartzia  EHRH.  but  in  1846  Schimper 
renamed  this  genus  Distichium,  and  transferred  Cynodontium  to  Dicranum 
Bruntoni,  and  Oncophorus  to  Hampe's  older  genus  Leucobryum,  but  in  his 
Synopsis  C.  gracilescens,  polycarpum  and  virens  were  added,  and  in  2  ed.  C. 
schisti  also,  C.  Bruntoni  being  moved  into  Dicranoweisia.  The  genus  as  now 
defined  includes  a  number  of  closely  allied  species  differing  but  little  in 
habit  and  foliage,  but  presenting  considerable  variations  in  the  peristome,  by 


DICRANACE.E.]  165  [Oncophorus. 

which  we  are  able  to  form  several  minor  groups,  one  of  which,  Rhabdoweissia, 
deviates  the  most  in  its  dwarf  habit  and  small  regular  striated  capsule. 
Besides  the  British  species,  0.  civmtus  (BniD.) — alpestre  (WAHLENB.}—brevipes 
LINDB.  Martii  (HORNSCH.)  and  schisti  (WAHLENB.)  are  also  found  in  Europe. 

CLAVIS  TO  THE  SPECIES. 

Capsule  strumose. 

Capsule  smooth  ;  leaves  smooth. 

Leaves  lanceolate.  vlrens. 

Leaves  from  a  dilated  base,  suddenly  subulate.  Wahlcnbcrgii. 

Capsule  furrowed ;  leaves  papillose.  strumifer. 

Capsule  not  strumose. 

Capsule  asymmetric,  oblique. 

Leaves  lanceolate,  rather  obtuse ;  perich.  bracts  short.  gracilesccns. 

Leaves  lane. -subulate,  acute  ;  perich.  bracts  longly  subulate,  polycarpus. 
Capsule  symmetric,  erect. 

Capsule  smooth.  Bruntoni. 

Capsule  furrowed. 

Leaves  obtuse ;  teeth  of  per.  long,  lanceolate.  crispatus. 

Leaves  acute ;  teeth  of  per.  short,  subulate.  striatus. 

Sect.  i.  LEIOCYSTIS  Lindb. — Plants  robust ;  leaves  smooth.  Cap- 
sule smooth,  cernuous,  incurved,  teeth  of  peristome  stout,  trabeculate,  cleft 
into  two  legs. 

i.  ONCOPHORUS   VIRENS  (Sw.)  End. 

Autoicous ;  in  large  lax  tufts.  Leaves  lanceolate  cuspidate,  flexuose, 
nerved  to  apex,  entire  or  serrate  at  point.  Capsule  ovate,  subcylindric, 
incurved  with  a  short  strumose  neck,  smooth  ;  peristome  dicranoid. 
(T.  XXV,  B.) 

SYN. — Bryum  virens  SWARTZ  in  Act.  Upsal.  1784,  p.  241. 

Dicranum  virens  HEDW.  Muse.  fr.  iii,  77,  t.  32  (1792),  Sp.  muse.  142  (1801).  ROTH  Fl. 
germ,  iii,  P.  I,  173  (1800).  BRID.  Muse.  rec.  II,  P.  1, 178  (1798),  Sp.  muse.  1, 193  (1806), 
Mant.  54  excl.  syn.  WAHL.  (1819).  SWARTZ  Muse.  suec.  33  (1799).  ROEHL.  Moosg. 
deutsch.  379  (1800),  Deutsch.  fl.  iii,  73  (1813).  SMITH  Fl.  brit.  iii,  1406  (1804),  Eng- 
Bot.  t.  1462.  TURN.  Fl.  hib.  69  (1804).  P.  BEAUV.  Prodr.  55  (1805).  WEB.  MOHR  Bot. 
Taseh.  182  (1807).  SCHWAEG.  Suppl.  I,  P.  I,  194  (1811).  HOOK.  TAYL.  Muse.  brit.  54, 
t.  17  (1818).  GRAY  Nat.  arr.  br.  pi.  i,  735  (1821).  HOOK.  Fl.  scot.  P.  2,  132  (1821). 
Br.  Fl.  ii,  38  (1833).  FUNCK  Moost.  31,  t.  22  (1821).  SCHULTZ  in  Syllog.  Ratisb. 
1828,  p.  149.  HUEBEN.  Muse.  germ.  231  (1833).  DE  NOT.  Syll.  211  (1838),  Epil.  bri. 
ital.  625  (1869).  Hartm.  Skand.  fl.  FIOR.  MAZZ.  Bry.  Rom.  2  ed.  p.  17  (1841), 
BR.  SCHIMP.  Bry.  eur.  fasc.  37-40,  p.  15,  t.  3  (1847).  RABEN.  Deutsch.  kr.  fl.  ii,  S.  3, 
137(1848).  WILS.  Bry.  br.  66,  t.  17  (1855).  HOBK.  Syn.  br.  m.  40  (1873). 

Oncophorus  virens  BRID.  Bry.  univ.  i,  399  (1826).     LINDB.  Muse,  scand.  27  (1879). 

Angstroemia  virens  C.  MUELL.  Synops  ii,  609  (1851). 

Cynodontium  virens  SCHIMP.  Bry.  eur.  Coroll.  12  (1855),  Synops.  63  (1860),  2  ed.  64  (1876). 
BERK.  Handb.  br.  m.  285  (1863).  JURATZ  Laubm.  oesterr-ung.  27  (1882). 

Autoicous ;  in  dense  laxly  cohering  tufts,  yellow  green  above, 
fuscous  or  black  below ;  stem  ascending  2 — 3  in.  high,  repeatedly 
dichotomous,  fastigiate,  slightly  radiculose.  Leaves  erecto-patent 
flexuose,  more  or  less  crisped  when  dry,  from  an  oblong  semivaginant 
base,  lanceolate  cuspidate  acute,  subcomplicate-carinate,  smooth, 
margin  recurved,  entire  or  serrate  at  apex,  nerve  subterete,  vanishing 
at  apex  or  very  slightly  excurrent,  basal  cells  narrow  pellucid,  upper 


DICRANACE.E.  i66  [Oncophorus 

minute  quadrate.  Inner  perich.  bracts  sheathing  to  the  middle,  thence 
longly  subulate  and  divaricate,  seta  rather  short  yellowish  red  ;  capsule 
subgibbose  ovate,  subcylindric,  more  or  less  incurved,  with  a  short 
strumose  neck  abrupt  on  one  side,  when  dry  and  empty  smooth, 
contracted  below  mouth,  ochraceous  or  fuscescent,  lid  conic  rostrate, 
erose  at  base,  oblique,  orange,  annulus  narrow,  persistent ;  peristome 
purple,  rufous  or  orange,  smooth,  teeth  broad  robust,  regular,  cleft  to 
middle.  Male  infl.  minute,  axillar  in  the  comal  leaves,  bracts  few, 
obovate-acuminate. 

HAB. — Wet   rocks  and  earth   among  stones  by  Alpine  streams.         Fr.  7. 
Common  on  Ben  Lawers  and  all  the  Grampian  range. 

Var.  ft,  serratus  (Schimp}. 

Laxly  tufted ;  stem  tall  ascending  sparingly  branched  ;  leaves  divari- 
cato-patent,  curling,  the  margin  coarsely  serrate.  Caps,  less  strumose. 

SYN. — Dicr.  virens  Var.  y.  serratum  SCHIMP.  Bry.  eur.      Cynodonthim  virens.  Var.  y.  serratum 
SCHIMP.  Coroll.  &c. 

HAB. — By  mountain  streams  and  waterfalls.     North  of  England  (Prof.  Barker 

1876). 

This  fine  moss  is  a  great  ornament  to  mountain  rocks,  and  varies  much  in 
size  and  in  the  form  and  direction  of  the  fruit ;  the  capsule  is  very  fragile  and 
splits  with  slight  pressure. 

2.  ONCOPHORUS  WAHLENBERGII  End. 

Autoicous  ;  stem  short  nearly  simple.  Leaves  lax,  distant,  from  a 
broad  sheathing  base,  suddenly  linear,  patent  acute  entire.  Capsule 
obovate,  when  empty  sulcate  and  incurved,  strumulose ;  teeth  of 
peristome  approximate  at  base.  (T.  XXV,  A.) 

SYN. — Dicranum  virens  WAHLENB.  Fl.  lapp.  308  (1812),  excl.  syn. 

Oncophorus  Wahlenbergii  BRID.  Bry.  univ.  i,  400  (1826).     LINDB.  muse,  scand.  27  (1879). 

Dicranum  Wahlenbergii  SCHULTZ  In  Syllog.  Ratisb.  1828,  p.  149. 

Dicr.  virens  Var.  /3.  Wahlenbergii  HUEBEN.  Muse.  germ.  231  (1833).     BR.  SCH.  Bry.  eur. 

fasc.  37—40,  p.  15,  t.  3  (1847).     RABEN.  Deutsch.  kr.  fl.  ii,  S.  3,  137  (1848). 
Dicran.  Richardsoni  HOOK,  in  DRUMM.  Muse.  amer.  n.  105. 
Angstroemia  Wahlenbergii  C.  MUELL.  Synops  ii,  610  (1851). 
Cynodontium  virens  Var.  /3.  Wahlenbergii  SCHIMP.  Bry.  eur.  Coroll.  12  (1855),   Synops.  63 

(1860),  2  ed.  64  (1876).     FERGUSS.  in  Scott,  nat.  1879,  p.  131.    JURATZ.  Laubm.  oesterr- 

ung.  28  (1882). 

Autoicous ;  resembling  O.  virens,  but  the  stems  slender,  i — 2  in. 
high  and  nearly  simple.  Leaves  strongly  crisped,  distant,  from  a 
dilated  sheathing  base,  narrowest  below  and  widening  upward,  suddenly 
lanceolate-subulate,  very  patent  and  flexuose,  the  margin  flat  and 
involute  above,  obsoletely  denticulate  at  apex  or  entire ;  areolation  as 
in  O.  virens,  the  basal  thinner  and  more  elongated.  Perich.  bracts 
more  widely  sheathing,  seta  rufescent,  capsule  leptodermous,  shorter, 


DICRANACEJE.]  167  [Oncophorus. 

castaneous  or  rufescent,  obovate,  cernuous,  strumose,  when  empty 
incurved,  wide  mouthed,  smooth  or  slightly  sulcato-striate,  lid  with  a 
curved  beak,  teeth  of  peristome  purple,  close  together  at  the  base, 
slightly  cleft  into  two  slender  legs. 

HAB. — Crevices  of  Alpine  rocks  ;  very  rare.       Fr.  8. 
Glen  Callater  (Fergusson  1871). 

Var.  (3.  compactus  (S 'chimp'). 

Plants  in  dense  yellow  green  tufts;  leaves  dense  erecto- patent,  shorter, 
curling  strongly,  the  margin  quite  entire.  Capsule  short  gibbous,  neck  with 
a  rounded  struma.  (T.  XXV,  B.,  fig.  ft.} 

SYN. — Dicranum  Homanni  BOECK  in  HARTM.  Skand.  Fl.  4  ed.  384  (1843). 
Dlcr.  virens  Var.  S.  compactum  Bry.  Eur. 
Cynodontium  virens  Var.  S.  compactum  SCHIMP.  Synops. 
Dicr.  Wahlenbcrgii  Var.  ft.  compactum  LINDB.  in  Oefv.  K.  vet.  ak.  Forhandl.   1867,  p.  556. 

HAB. —  On  the  higher  mountains  of  Braemar.      Little  Craigandal,  with  Dicr. 

elongatum  (Fergusson  and  Roy  1873). 

This  plant  is  certainly  distinct  from  O.  virens,  and  in  habit  resembles  O. 
strumiferum;  the  form  of  the  base  of  leaf  is  quite  characteristic.  Prof.  Lind- 
berg  retains  it  in  a  separate  section  which  he  names  Parasymblepharis.  The 
variety  ft.  by  the  shape  of  its  leaf  must  also  be  placed  here  and  not  under 
0.  virens. 

Sect.  2.  EUONCOPHORUS  Lindb.— Plants  slender,  ramulose ;  leaves 
papillose.  Capsule  suberect,  oblong,  with  a  distinct  neck,  equal  or  slightly 
strumose,  striate,  when  empty  sulcate;  teeth  thin,  more  distantly  trabeculate, 
cleft  into  2 — 3  slender  legs. 

3.  ONCOPHORUS  STRUMIFER  (Ehrh.)  Brid. 

Autoicous ;  in  pulvinate  tufts.  Leaves  lanceol. -subulate,  flexuose, 
entire  or  crenulate  at  apex,  papillose  on  both  sides.  Caps,  gibbose- 
oblong,  distinctly  strumose  at  base.  (T.  XXV,  C.) 

SYN. — Dicranum  strumiferum  EHRH.  PI.  crypt,  n.  74  (1786).     SCHRAD.  Spic.  fl.  germ.  59  (1704). 

SWARTZ    Muse.    suec.   33    (1799).     ROTH  Fl.  germ,  iii,  P.  I,  186  (1800).     SMITH  Fl. 

brit.  iii,  1228  (1804),  Eng.  hot.  t.  2410.     BRID.  Sp.  muse.  I,  226  (1806),  Mant.  24  (1819). 

WEB.  MOHR  Bot.  Tasch.   181  (1807).      SCHWAEG.  Suppl.  I,  P.  I,  194  (1811).     ROEHL. 

Deutsch.  fl.  iii,  72  (1813).     HOOK.  TAYL.  Muse.  br.  54,  t.  17  (1818).     FUNCK  Moost.  31,  t. 

21  (1821).     GRAY  Nat.  afr.  br.  pi.  i,  735  (1821).     HOOK.  Fl.  scot.  P.  2,  132  (1821),  Br.  fl. 

ii,  39  (1833).     HUEBEN.  muse.  germ.  232  (1833).     c-  MUELL,  Synops.  ii,  592  (1851). 
Fissidens  strumifer   HEDW.   Muse.  fr.  ii,  88,  t.  32  (1788).  Sp.  muse.  160  (1801).     BRID. 

Muse.  rec.  II,  P.  I,  151   (1798).     ROEHL.  Moosg.  deutsch.  308  (1800).     WAHLENB.  Fl. 

carp.  343  (1814). 

Hypnum  strnmosum  GMEL.  Syst.  nat.  ii,  1339  (1791).     LAICH.  PI.  eur.  488  (1794). 
Bryum  strumiferum  DICKS.  PI.  crypt,  fasc.  3,  p.  8  (1793).     WITH.   Bot.   arr.  br.  veg.  3  ed. 

iii.  833  (1796).     HOFFM.  Deutsch.  fl.  ii,  36  (1796).     HULL  Br.  fl.  P.  2,  264  (1799). 
Bryum  inclinans  DICKS,  op.  c.  fasc.  4,  p.   n,  t.   n,  f.  9  (1801).     SM.  Fl.  brit.  iii,  1363. 

BRID.   Muse.  rec.  II,  P.   Ill,  66    (1803),  Sp.  muse.  Ill,  32    (1817),  Mant.  120  (1810) 

SCHWAEG.  Suppl.  I,  P.  II,  120  (1816). 
Cecalyphum  strumiferum  P.  BEAUV.  Prodr.  52  (1805). 
Dicr.  gibbosum  BRID.  Sp.  muse.  I,  225  (i8o6).| 
Oncophorus  strumifer  BRID.  Bry.  univ.  i,  395  (1826).     BRAITHW.  in  Journ.  Bot.  1870,  p.  228. 

LINDB.  Muse,  scand.  27  (1879). 


DICRANACEJB.]  168  [Oncophorus. 

Dicran.  polycarpum  Var.  ft.  strumiferum  DE  NOT.  Syll.  210  (1838).     BR.  SCH.  Bry.  eur. 

fasc.  37 — 40,  p.  14  (1847).     RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  137  (1848).     WILS.  Bry. 

brit.  65,  t.  17  (1855).     HOBK.  Syn.  br.  m.  40  (1873). 
Cynodontium  polycarpum   Var.   /?.  strumiferum  SCHIMP.    Bry.    eur.    Coroll.    15    (1855). 

Synops.  62.     MILDE  Bry.  sil.  50  (1869).    JURATZ.  Laubm.  oesterr.-ung.  27  (1882). 
Cynodontium  strumiferum  DE.  NOT.  Epil.  280  (1869). 

Autoicous ;  in  cushioned  yellow-green  tufts.  Stem  i — 2  in.  high, 
simple  below,  with  ferruginous  tomentum,  subdichotomous  and  fastigiate 
above.  Leaves  from  a  broad  sheathing  base,  lanceolate-subulate, 
flexuose  and  slightly  twisting,  strongly  keeled,  nerve  vanishing  at  apex, 
margin  revolute  below,  plane  above,  entire  or  crenulate  at  apex,  surface 
in  upper  part  covered  with  obtuse  papillae,  as  is  also  the  back  but  finer ; 
areolation  as  in  One.  polycarpus  but  smaller  and  denser.  Perich.  bracts 
sheathing,  gradually  subulate,  seta  reddish  yellow  ;  caps,  gibbous-oblong, 
erecto-cernuous,  with  the  base  somewhat  constricted  and  strumose, 
striate  and  yellow-green  at  first,  finally  sulcate  and  pale  brown  ;  annulus 
compound,  lid  red  with  a  paler  curved  beak ;  teeth  of  per.  red,  adhering 
together  at  base,  bifid. 
HAB. — Wet  crevices  of  rocks  on  the  higher  mountains.  Fr.  8. 

Glen  Phee,  Clova  (Hooker)  !  !     Holwick  Scar,  Teesdale,  (Spruce  1843).     Craig  Koynack, 
Braemar  (Croall  1854)  !     Bach.na-Gairn  (Hunt  1869)  ! 

Although  so  generally  united  to  O.  polycarpus,  this  appears  to  be  a  good 
species,  distinguished  by  the  constant  presence  of  a  struma,  and  the  leaves  at 
their  upper  part  papillose  on  both  sides. 

4.  ONCOPHORUS  GRACILESCENS  (Web.  Mohr)  Lindb. 

Autoicous  ;  in  small  soft  tufts.  Leaves  patent,  tortuose,  lanceolate, 
scarcely  acuminate,  rather  obtuse,  densely  papillose  on  both  sides. 
Caps,  on  a  flexuose  seta,  erect,  oblong,  not  strumose.  (T.  XXV,  D.) 

SYN. — Dicranum  gracilescens  WEB.  MOHR  Bot.  Tasch,  184  (1807).  SCHWAEG.  Suppl.  I,  P.  I, 
180,  t.  46  (1811).  ROEHL.  Deutsch.  Fl.  iii,  69  (1813).  BRID.  Mant.  62  (1819),  Bri. 
univ.  i,  441  (1826)  excl.  var.  FUNCK  Moost.  30,  t.  21  (1821).  HUEBEN.  Muse.  germ. 
255  (I833)-  DE  NoT-  Syll.  2°9  (1838)-  BR.  SCHIMP.  Bry.  eur.  fasc.  37—40,  p.  13,  t.  n 
(1847).  RABENH.  Deutsch.  kr.  fl.  ii,  s.  3,  136  (1848). 

Campylopus  cirrhatus  BRID.  Bry.  univ.  i,  479. 

Dryptodon  Campylopus  BRID.  Bry.  univ.  i,  suppl.  773. 

Dicranum  mixtum  DE  NOT.  Mant.  n.  52;  Syllab.  210. 

Dicr.  polycarpum  ft.  gracilescens  C.  MUELL.  Synops.  ii,  591  (1851). 

Cynodontium  gracilescens  SCHIMP.  Bry  eur.  Coroll.  12  (1855),  Synops.  61  (1860),  2  ed.  62 

(1876).     MILDE  Bry.  siles.  51  (!86g).      DE  NOT.  Epil.  bri.  ital.  281  (1869).     JURATZ. 

Laubm.  oesterr.-ung.  25  (1882). 

Oncophorus  gracilescens  LINDB.  Muse,  scand.  27  (1879). 

Autoicous ;  in  small  soft  tufts,  yellow  green  above,  fuscous  below, 
slender  fastigiate-branched.  Leaves  flexuose  patent,  curved  and  twisted 
when  dry,  lineal-lanceolate  or  broadly  lane,  rather  obtuse  or  pointed, 
carinate,  with  the  margin  recurved,  minutely  crenulate,  densely  papillose 


DICRANACE^.]  169  [Oncophorus. 

on  both  sides,  papillae  longish ;  nerve  thin,  vanishing  below  apex,  cells 
very  small,  roundish-quadrate,  the  basal  elongated,  diaphanous.  Cap- 
sule pale  becoming  brownish,  on  a  flexuose  pale  pedicel,  erect  or 
subcernuous,  oval  and  oblong,  striate,  the  neck  inconspicuous,  not 
strumose  ;  lid  long  beaked,  smooth  at  margin,  annulus  persistent,  of 
2  rows  of  cells ;  teeth  2 — rarely  3 — fid  below  middle,  rufous  red, 
remotely  articulate. 

HAS. — Fissures  of  alpine  rocks  ;   very  rare.       Fr.  8. 

Glen  Phee,  Clova  (Fergusson  1868). 

This  was  sent  as  O.  poly  carpus  by  the  Rev.  Mr.  Fergusson,  as  well  as 
true  specimens  of  that  plant,  and  hence  it  is  probable  that  they  grew  together, 
and  at  first  sight  it  is  not  an  easy  matter  to  discriminate  them.  Perhaps  the 
distinction  will  be  best  apprehended  by  a  comparison  of  the  figures  of  the 
leaves  and  bracts,  and  of  their  apices  and  ar  eolation.  O.  poly  carpus  has  the 
leaves  papillose  only  on  the  back  towards  apex,  while  in  O.  gmcilescens 
both  surfaces  are  distinctly  so.  It  will  doubtless  be  met  with  in  other  places 
now  that  attention  is  drawn  to  it. 

5.  ONCOPHORUS  POLYCARPUS  (Ehrh.)  Brid. 

Autoicous ;  caespitose.  Leaves  crowded,  flexuose,  lanceolate- 
subulate,  acute,  faintly  papillose,  denticulate  at  point.  Caps,  erect, 
oblong,  not  strumose,  with  a  tapering  neck.  (T.  XXV,  E.) 

SYN. — Dicranum  poly  car pum  EHRH.  PL  crypt,  exs.  n.  84  (1786).     ROTH  Fl.  germ,  iii,  P.  I,  187 

(1800).     SWARTZ  Muse.  suec.  32  (1799).     Smith  Fl.  brit.  iii,  1227   (1804),  Eng.  Bot.  t. 

2269.     BRID.  Sp.  muse.  I,  102  (1806),  Mant.  66  (1819),  Bry.  univ.  i,  397  (1826).     WEB. 

MOHR  Bot.  Tasch.  179  (1807).      SCHWAEG  Suppl.  I,   P.  I,   179   (1811).     VOIT  Muse. 

herbip.  30  (1812).     MART.  Fl.  cr.  erl.  102  (1817).     HOOK.  TAYL.  Muse.  brit.  57,  t.   18, 

p.p.  (1818).     FUNCK  Moost.  29,  t.  20  (1821).     HOOK.  Fl.  scot.  P.  2,  133  (1821),  Br.  fl.  ii, 

39  (I833)-      GRAY  Nat.  arr.  br.  pi.  i,  737  (1821).     HUEBEN.  Muse.  germ.  253  (1833). 

DE  NOT.  Syllab.  210  (1838).     HARTM.  Skand.  Fl.     BR.  SCH.  Bry.  eur.  fasc.  37—40,  p. 

14,  t.  2  (1847).     RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  137  (1848).     C.  MUELL.  Synops  ii,  591 

(1851).     WILS.  Bry.  brit.  65,  t.  18  (1855). 
Bryum  medium  VILL.  PI.  Dauph.  iii,  878  (1786). 
Fissidens  polycarpos  HEDW.  Muse,  frond,  ii,  85,  t.  31  (1788),  Sp.  muse.  159  (1801).     BRID. 

Muse.  rec.  II,  P.  I,  150  (1798).     ROEHL.  Moosg.  Deutsch.  305  (1800).     WAHLENB.  Fl. 

carp.  343  (1814).) 

Bryum  polycarpon  HOFFM.  Deutsch.  fl.  ii,  37  (1796). 
Cecalyphum  multiflorum  P.  BEAUV.  Prodr.  51  (1805). 
Oncophorus  polycarpus  BRID.  Bry.  univ.  i,  397  (1826). 
Cynodontium  polycarpum  SCHIMP.  Bry.  eur.  Coroll  12  (1855),  Synops.  62  (1860),  2  ed.  63 

MILDE  Bry.  siles,  50  (1869).      DE  NOT.  Epil.  bri.  ital.  280  (1869).     JURATZ.  Laubm. 

oesterr.-ung.  27  (1882). 
Didymodon  Jenneri  SCHIMP.  MSS.     HOWIE  in  Trans.  Edinb.  Bot.  Soc.  ix,  198  (1868). 

Autoicous ;  more  robust  i — 2  in.  high,  radiculose,  pale  green  above, 
fuscous  at  base.  Leaves  crowded,  gradually  larger  upward,  flexuoso- 
patent,  less  crisped  when  dry,  longer,  from  an  oblong  base,  narrowly 
lineal-lanceolate-subulate,  acute,  serrulate  at  apex,  less  papillose,  nerve 
lost  at  apex,  margin  recurved,  serrate  at  point ;  basal  cells  elongated 


DICRANACE^.]  170  [Oncophorus. 

rectangular,  upper  quadrate.  Perich.  bracts  from  an  oblong  sheathing 
base,  longly  subulate,  seta  straight,  reddish  yellow ;  caps,  erect  or 
cernuous,  oblong-ovate,  equal,  with  a  short  equal  neck,  deeply  sulcate 
when  dry,  pale  brown,  annulus  of  3  rows  of  large  cells,  lid  conoid- 
rostellate,  shorter  than  caps,  crenulate  at  margin,  teeth  cleft  to  middle 
into  2  unequal  legs,  red. 

Male  infl.  gemmiform,  at  base  of  perichsetium,  bracts  few,  ovate. 
HAB. — Clefts  of  mountain  rocks.         Fr.  7. 

Ben  High  (Don).  Cader  Idris  (Ralfs).  Bushiel  Dene  (Hardy).  Hambledon  Dene 
(Johnston).  Dumyet,  Ochills  (Wilson  1855)  !  !  Ben  Chonzie,  Perth— Glen  Turritt  and 
Glen  Esk  (Croall  1854).  Glen  Tilt,  Trossachs  and  Ben  Lawers  (McKinlay  1861).  Craig 
Maid  and  Carlowie  (Gardiner  1843) !  Castleton,  Braemar  (Black  1854).  Rydal  (Borrer 
1845).  Clova  (Fergusson) ! ! 

Much  confusion  has  existed  between  this  species  and  0.  Bruntoni,  partly 
due  to  Hedwig's  figure  of  0.  polycarpus  representing  the  capsule  as  smooth  ; 
in  habit  they  closely  approximate,  but  the  leaves  of  0.  polycarpus  are  longer, 
and  the  longer  striated  caps,  and  well  developed  peristome  at  once  distinguish 
it. 

Sect.  3.  PHEUGODON  Lindb.  Caps,  leptodermous,  regular,  not  stru- 
mose,  faintly  ribbed  when  dry,  peristome  small  and  imperfect. 

6.  ONCOPHORUS  BRUNTONI  (Smith),  Lindb. 

Autoicous ;  pulvinate,  fasciculate-leaved.  Leaves  lineal-lanceolate, 
remotely  denticulate  at  point,  papillose.  Capsule  erect,  oval-oblong, 
symmetric,  smooth ;  lid  rostrate  ;  teeth  small,  irregular,  cleft  to  base, 
the  legs  erose  or  entire.  (T.  XXVI,  A.) 

SYN. — Grimmia  cirrata  SM.  Fl.  brit.  iii,  1189  (1804),  Eng.  Bot.  t.  2356. 

Dicranum  Bruntoni  SM.  Eng.  Bot.  t.  2509  (1812).     C.  MUELL.  Synops.  ii,  590  (1851).    JENS. 

Bry.  dan.  93  (1856).     HUSN.  Mouss.  nord-ouest.  47  (1873). 
Didymodon  obscurus  KAULF.  in  STURM  Deutsch.  fl.  II,  heft.  16,  n.  9  (1815).     BRID.  Mant. 

103  (1819),  Bry.  univ.  i,  516  (1826).     FUNCK  Moost.  t.  14  (1821).     SCHWAEG.  Suppl.  II, 

P.  I,  80,  t.  124  (1823).     GREV.  Scott,  or.  fl.  iv,  t.  193  (1826).     SPRENG.  in  L.  Syst.  veg. 

iv,  P.  I,  173  (1827).     DUBY  Bot.  gall,  ii,  566  (1830).     HUEBEN.  Muse.  germ.  289  (1833). 
Dicranum  poly carpum  HOOK.  TAYL.  Muse.  br.  57,  t.  18  p.p.  (1818).     HOOK.  Fl.  scot.  P.  2, 

133  (1821).     GREV.  Fl.  edin.  240  (1824). 

Didymodon  Bruntoni  WALK.-ARN.  Disp.  muse.  36  (1825).     HOOK.  TAYL.  Muse.  br.  2  ed. 

117,  t.  suppl.  4  (1827).     HOOK.  Br.  fl.  ii,  29  (1833).     MACK.  Fl.  hib.  P.  2,  18  (1836). 
Weissia  cirrata  BALS.  DE  NOT.  Prodr.  fl.  mediol.  142  (1834). 
Trichostomum  obscurum  DE  NOT.  Syllab.  194  (1838). 
Cynodontium  Bruntoni  BR.  SCH.  Bry.  eur.  fasc.  33 — 36,  p.  3, 1. 1  (1846).    RABENH.  Deutsch. 

kr.  fl.  ii,  S.  3,  128  (1848).     WILS.  Bry.  brit.  61,  t.  34  (1855).     SCHIMP.  Synops.  60  (1860). 

BERK.  Handb.  br.  m.  284,  t.  23,  fig.  9  (1863).     HOBK.  Syn.  br.  m.  39  (1873).     JURATZ. 

Laubm.  oesterr-ung.  25  (1882). 

Weissia  Bruntoni  DE  NOT.  Epil.  bri.  ital.  597  (1869). 
Oreoweisia  Bruntoni  MILDE  Bry.  siles.  54  (1869). 
Dicranoweisia  Bruntoni  SCHIMP.  Synops.  2  ed.  56  (1876). 

Autoicous ;  in  soft  yellowish  or  olive  green  cushioned  tufts,  with 
ferruginous  radicles  at  base,  fastigiate  branched.  Leaves  crowded, 


DICRANACE^E.]  171  [Oucophorus. 

fasciculate,  erecto-patent,  when  dry  cirrate-contorted,  lower  elongato- 
lanc.  upper  much  longer,  lineal-lane,  flexuose,  carinate,  concave  with  the 
margin  recurved,  remotely  denticulate  toward  apex,  minutely  papillose, 
nerve  vanishing  in  apex,  roughish  at  back  ;  basal  cells  rather  lax, 
elongate  hexagonal,  the  angular  flat,  pellucid,  upper  quadrate  opake, 
chlorophyllose.  Perich.  bracts  semivaginant  at  base,  shortly  acuminate, 
caps,  on  a  short  yellowish  seta,  erect,  regular  or  a  little  curved  on  one 
side,  oval-oblong,  rarely  elongated,  leptodermous,  smooth,  pale  brown, 
when  dry  faintly  plicate  ;  annulus  narrow,  adherent,  lid  conic,  obliquely 
rostrate,  orange  at  base,  not  half  length  of  caps.,  teeth  small  red,  irre- 
gular, cleft  to  base,  the  legs  erose  and  partly  cohering,  or  entire  and 
free,  smooth,  indistinctly  striolate. 

Male  infl.  gemmaceous,  at  base  of  perich.,  bracts  few,  broadly  ovate 
obtusely  acuminate  ;  antheridia  and  paraphyses  elongated. 
HAB. — Clefts  of  rocks  in  subalpine  districts.         Fr.  7 — 8. 

Ben  Lawers  (Don).  Pentland  hills  (Greville).  Appin  and  Lome  (Carmichael).  Powers- 
court  (Taylor).  Aber  (Wilson)  \  \  Capel  Curig  (Borrer  1838) !  Newburgh,  Fife  (Howie 
1864)  !  Seven  Churches  (Moore).  Glenbower  and  Kildorney,  Cork  (Carroll).  Oldcam- 
bus  and  Hambledon  denes  (Hardy).  Dartmoor  (Holmes).  Newtondale  and  Teesdale 
(Spruce  1843)  !  Craig-an-darrach,  Ballater  (Hunt  1871)  ! ! 

Although  much  resembling  0.  polycarpus,  the  present  species  may  be 
distinguished  by  its  shorter  leaves,  shorter  smooth  capsule,  and  especially  by 
its  ill-developed  peristome. 

O.  schisti  (WAHLENB.)  may  possibly  be  found  here,  as  it  occurs  in  Sweden 
and  Norway ;  it  is  still  smaller  and  denser  than  0.  Bruntoni,  with  rather  obtuse 
nearly  entire  leaves,  and  a  striated  capsule  with  lanceolate  undivided  teeth. 

Sect.  4.  RHABDOWEISSIA  (Br.  Sch.)  Lindb.  Plants  short,  densely 
tufted,  leaves  narrow,  curled,  finely  papillose  in  upper  part.  Caps,  sym- 
metric, not  strumose,  wide  mouthed,  8-striate,  when  dry  8-sulcate,  teeth 
subulate. 

7.  ONCOPHORUS  CRISPATUS  (Dicks.)  Lindb. 

Autoicous;  leaves  flexuose,  curled,  linear-lanceolate,  coarsely 
toothed  at  the  rather  obtuse  point.  Caps,  ovato-globose  with  a  distinct 
neck,  teeth  lanceolate,  persistent.  (T.  XXVI,  B.) 

SYN.— Bryum  crispatum  DICKS.  PI.  crypt.  Fasc.  Ill,  3,  t.  7,  fig.  4  (1793).     WITH.  Bot.  arr.  br. 

veg.  3  ed.  iii,  833  (1796).     HULL  Br.  fl.  P.  2,  264  (1799)- 

Weissia  crispata  BRID.  Muse.  rec.  II,  P.  I,  73  (1798).     ROEHL.  Moosg.  deut.  151  (1800). 
Weissia  denticulata  BRID.  Sp.  muse.  I,  108  (1806),  Mant.  40  (1819),  Bry.  univ.  1,342  (1826). 

SCHWAEG.  Suppl.  I,  P.  I,  75,  t.  19  (1811).     FUNCK  Moost.  15,  t.  10  (1821).     NEES  HSCH. 

Bry.  germ,  ii,  P.  II,  78,  t.  31,  fig.  18  (1831).     HUEBEN.  Muse.  germ.  135  (1833).    HARTM. 

Skand.  Fl.     C.  MUELL.  Synops.  i,  650  (1849).     SCHIMP.  Synops.  53  (1860). 
Weissia  fugax  (3.  ROEHL.  Deutsch.  fl.  iii,  49  (1813). 
Weissia  striata  ft.  major  HOOK.  TAYL.  Muse.  br.  45,  t.  15  (1818).     GRAY  Nat.  arr.  br.  pi.  i, 

730  (1821).    HOOK.  Br.  fl.  ii,  21  (1833). 


DICRANACE^E.]  172  [Oncophorus. 

Rhabdoweisia  denticulata  BR.  SCH.  Bry.  eur.  fasc.  33 — 36,  p.  5,  t.  2  (1846).  RABENH. 
Deutsch.  kr.  fl.  ii,  S.  3,  129  (1848).  WILS.  Bry.  br.  51,  t.  15  (1855).  BERK.  Handb.  br. 
m.  291,  t.  24,  fig.  5  (1863).  MILDE  Bry.  siles.  47  (1869).  DE  NOT.  Epil.  bri.  ital.  283 
(1869).  HOBK.  Syn.  br.  m.  36  (1873).  SCHIMP.  Synops.  2  ed.  59  (1876).  JURATZ. 
Laubm.  oesterr.-ung.  22  (1882). 

Autoicous  ;  in  small  lax  bright-green  tufts,  fuscous  at  base.  Leaves 
gradually  longer  upward,  flexuoso — and  recurvo — patulous,  when  dry 
cirrate — crispate,  slightly  glossy,  broadly  linear,  obtuse,  carinate,  nerve 
vanishing  below  apex,  margin  plane  or  waved,  coarsely  and  remotely 
toothed  toward  apex;  cells  elongato-hexagonal  and  hyaline  at  base; 
quadrato-hexag.  and  chlorophyllose  above.  Caps,  erect,  ovato-globose 
with  a  more  distinct  neck,  more  solid,  fuscescent,  when  dry  and  empty, 
from  a  contracted  base  suburceolate,  deeply  sulcate  ;  lid  with  a  subulate 
beak,  long  as  caps.,  teeth  from  a  lanceolate  base,  narrowly  subulate- 
linear,  articulated,  longer,  more  solid,  rufous-purple,  persistent. 
HAB. — Crevices  of  subalpine  rocks.  Fr.  6 — 7. 

On  the  Isla,  Angus  (Hooker).  Green's  Clough,  Todmorden  (Nowell  1856)  !  !  Grasmere 
and  Rydal  (Whalley  1864)  !  Ben  Voirlich,  Craig  Challeach  and  Glen  Lyon  (Hunt 
1865)  !  !  Hill  bell,  Westmoreland  (Stabler  1868)  !  Cader  Idris  (Wild  1877)  !  Aber 
and  Beddgelert  (Hunt  1865)  !  !  Glenmalur  and  Upper  Lough  Bray  (Moore).  Nire 
Lakes,  Waterford  (Nicholson  1882) !  !  Teesdale  (R.  Barnes  1881)  I  ! 

More  robust  than  the  next  species  and  readily  distinguished  from  it  by 
the  broad  pointed,  coarsely  serrate  leaves,  and  stout  persistent  peristome. 

8.  ONCOPHORUS  STRIATUS  (Schrad.}  Lindb. 

Autoicous ;  leaves  curled,  narrow  lineal-lanceolate,  scarcely  toothed 
at  the  acute  point.  Caps,  small  ovate,  teeth  broad  at  base,  suddenly 
subulate,  slender  and  fugacious.  (T.  XXVI,  C.) 

SYN. — Grimmia  striata  SCHRAD.  Bot.  Journ.  ii,  55  (1799).      SMITH  Fl.  brit  iii,  1185  (1804),  Eng. 

Bot.  t.  1988.     WEB.  MOHR  Bot.  Tasch.  143  (1807).     SCHKUHR  Deutsch.  kr.  gew.  P.  2, 59, 

t.  25  (1810).     VOIT  Muse,  herbip.  33  (1812). 
Grimmia  crispata  ROTH  Fl.  germ,  iii,  P.  I,  145  (1800). 
Weissiafugax  HEDW.  Sp.  muse.  64,  t.  13,  fig.  5 — 10  (1801).     BRID.  Sp.  muse.  1, 107  (1806), 

Mant.  40  (1819),  Bry.  univ.  I,  340  (1826).    SCHWAEG.  Suppl.  I,  P.  I,  77  (1811).    WAHLENB. 

Fl.  lap.  324  (1812).     ROEHL.  Deutsch.  fl.  iii,  49  (1813),  Ann.  Wett.  ges.  iii,  100.     FUNCK 

Moost.  15  t.  10  (1821).      NEES  HSCH.  Bry.  germ,  ii,  P.  II,  74,  t.  31,  fig.  17  (1831). 

HUEBEN.  Muse.  germ.  133  (1833).     HARTM.  Skand.  fl.     DE  NOT.  Syllab.  234  (1838).     C. 

MUELL.  Synops.  i,  649  (1849).     SCHIMP.  Synops.  52  (1860).      HUSN.  M.  nord-ouest  42 

(i873). 
Weissia  striata  KAULF.  in  STURM  Deutsch.  fl.  II,  heft  16,  t.  24  (1815).      HOOK.   TAYL. 

Muse.  br.  45,  t.  15  (1818).     GRAY  Nat.  arr.  br.  pi.  i,  730  (1821).     HOOK.  Fl.  scot.  P.  2, 

130  (1821),  Br.  fl.  ii,  21  (1833). 
Weissia  pumila  BRID.  Bry.  univ.  i,  338  (1826). 
Weissia  leptodon  PLAUB.  in  BRID.  op.  c.  p.  341,  t.  suppl.  i. 
Rhabdoweisia  fugax  BR.  SCH.  Bry.  eur.  fasc.  33—36,  p.  4,  t.  i  (1846).     RABENH.  Deutsch. 

kr.  fl.  ii,  S.  3,  129  (1848).      WILS.  Bry.  br.  50,  t.  15  (1855).     BERK.  Handb.  br.  m.  290 

(1863).     MILDE  Bry.  siles.  47  (1869).     DE  NOT.  Epil.  bri.  ital.  283  (1869).      HOBK.  syn. 

br.  m.  36  (1873).     SCHIMP.  Synops.  2  ed.  58  (1876).    JURATZ.  Laubm.  oesterr.-ung.  21 

(1882). 

Autoicous ;  in  small  cushioned  tufts,  deep  green  above,  pale  fuscous 
and  radiculose  below.  Leaves  fasciculate,  curled  when  dry,  narrowly 


DICRANACE^E.]  173  [Ceratodon. 

lineal-lane.,  gradually  acuminate,  acute,  indistinctly  denticulate  or 
entire  at  apex,  carinate,  plane  at  margin,  cells  at  base  elongato-rectan- 
gular,  pellucid,  above  quadrate  or  roundish,  chlorophyllose ;  nerve 
vanishing  in  the  apex.  Perich.  bracts  like  the  leaves ;  caps,  on  a  rather 
short  pale  seta  twisted  to  left  when  dry,  very  small,  erect,  ovate, 
short-necked,  pale  ferruginous,  deeply  striate  ;  annulus  very  narrow, 
persistent,  lid  broadly  conic  with  a  curved  subulate  beak ;  teeth  from  a 
very  broad  base,  suddenly  subulate,  erect  when  moist,  incurved  when 
dry,  rufous  red,  very  fugacious. 

Male  infl.  minute,  near  the  female,  bracts  resembling  the  leaves. 

HAB. — Fissures  of  rocks  in  subalpine  districts.         Fr.  6 — 7. 

Devonshire,  Wales,  Ireland,  N.  of  England  and  Scotland. 

This  little  plant  is  only  about  a  quarter  of  an  inch  high,  yet  its  small 
yellow  green  tufts  when  loaded  with  capsules  are  conspicuous  in  the  rock 
crevices  of  most  of  our  mountains.  The  peristome  is  so  fragile  that  it  usually 
disappears  as  soon  as  the  lid  falls  off. 

CERATODON  BRIDEL. 

(Bry.  univ.  i,  480—1826.) 

Plants  caespitant,  terrestrial ;  leaves  lanceolate,  nerved,  minutely 
areolate,  smooth.  Calyptra  cucullate,  rostrate.  Capsule  ovate-oblong, 
striate,  sulcate  when  dry,  with  a  more  or  less  prominent  neck,  annulate, 
pachydermous ;  teeth  of  peristome  arising  from  a  short  basal  membrane, 
16,  regular  cleft  nearly  to  base  into  two  filiform  legs,  closely  articulate 
below,  becoming  more  remotely  so  upward  and  papillose.  Der.  /cepas  a 
horn,  ogous  a  tooth,  from  resembling  a  goat's  horn. 

The  genus  Ceratodon  links  the  Dicranaceae  to  the  Tortulaceae,  approach- 
ing the  former  by  the  genus  Oncophorus  in  the  leaf,  capsule  and  peristome,  the 
slender  legs  of  the  latter  with  increasing  papillosity  clearly  indicating  a 
transition  to  the  latter  family,  strengthened  still  more  by  the  habit,  foliage 
and  areolation.  C.  corsicus  SCHIMP.  is  found  in  S.  Europe,  but  C.  chloropus 
BRID.  is  placed  by  Lindberg  in  a  new  genus  Cheilothela,  between  Swartzia  and 
Ditrichum. 

CLAVIS  TO  THE  SPECIES. 

Nerve  reaching  apex.     Caps,  subcernuous,  with  a  nodose  neck.  purpurens. 

Nerve  excurrent.     Caps,  erect,  with  a  short  equal  neck.  conicus. 

i.  CERATODON    PURPUREUS  (L.)  Brid. 

Dioicous ;  leaves  oblong-lanceolate,  margin  entire,  or  slightly  den- 
ticulate at  point,  nerve  reaching  apex.  Capsule  on  a  purple  seta,  sub- 
cernuous, oblong  with  a  short  unequal  neck,  substrumose  and  sulcate 
when  dry.  (T.  XXVI,  D.) 

SYN.— Muscus  trichoides  parvus  foliis  musci  vulgarls,  capitulis  longis  acutis.      DOODY  in  RAY 
Syn.  app.  243  (1690). 


DICRANACE^E.]  174  [Ceratodon. 

Bryum  parvum  trichoides  ramosum,  erectis  capitulis  subfuscis  in  pediculis  obscure  rubris. 

DILL.  Cat.  Giss.  224  (1719),  et  in  RAY  Synops.  3  ed.  96  (1724)- 
Bryum  perangustis  fol.  et  caulic.fol.  crebrioribus  et  circa  sum.  magis  congestis,  capit.  erectis 

e  sure,  annot.  egred.  pediculis  purpureis.  DILL.  Giss.  226  ;  RAY  Syn.  3  ed.  99. 
Bryum  parvum,  surculis  et  setis  geminatis.  DILL.  Hist.  385,  t.  49,  f.  50  (1741). 
Bryum  tenue  stellatum,  setis  purpureis.  DILL.  Hist.  386,  t.  49,  f.  51. 

Bryum  polytrichoides  palustre,  setis  longioribus  rubris  setaceis.     DILL.  Hist.  387,  t.  49.  f.  52. 
Mnium  purpureum  L.  Sp.  pi.  ii,  mi  (1753).  Syst.  nat.  ii,  700.     WITH.  Bot.  arr.  Br.  veg. 

665  (1776).     RELH.  Fl.  cant.  399  (1785).     ABBOT  Fl.  bedf.  233  (1798). 
Bryum  Celsii  L.  op.  c.  ii,  1120.    VILL.  PI.  dauph.  iii,  866  (1789).     DICKS,  fasc.  Ill,  7. 
Bryum  purpureum  HUDS.  F\.  angl.  412  (1762).     NECK.   Meth,   muse.  211(1771).     WEISS 
Cr.  gott.  198  (1770).     LIGHTF.  Fl.  scot,  ii,  734  (1777)-     WEB-  sPic-  fl-  g°ett-   IO1  I1??8)- 
HOFFM.  Deutsch.  fl.  ii,  36  (1796).     HULL  Br.  fl.  P.  2,  254  (1799). 

Dicranum  purpureum  HEDW.  Fund.  muse,  ii,  92,  t.  4,  fig.  17  (1782),   Sp.  muse.  136,1.  36 
(1801).     ROTH  Tent.  fl.  germ,  i,  460  (1788).     SIBTH.  Fl.  oxon.  281  (1794).     BRID.  Muse. 
rec.   II,  P.  I,  178   (1798),  Sp.   muse.  I,  215  (1806),   Mant.  69  (1819).     SWARTZ  Muse. 
suec.  36(1799).     ROEHL.  Moosg.  deutsch.  360  (1800),  Deutsch,  fl.  iii,  75  (1813).     RICH. 
in  MCHX.  Fl.  bor.  amer.  ii,  298  (1803).     SM.   Fl.  brit.  iii,  1217  (1804),  Eng.  bot.  t.  2262. 
TURN.  Muse.  hib.   71    (1804).     P.  BEAUV.    Prodr.  55  (1805).     SCHULTZ  Fl.  starg.  300 
(1806).     WEB.  MOHR  Bot.  Tasch.  199  (1807).     SCHWAEG.   Suppl.  I,  P.  I,   216  (1811). 
VOIT   Muse,  herbip.  51  (1812).     WAHLENB.  Fl.  carp.  346  (1814).     MART.  Fl.  cr.  erl.  104 
(1817).     FUNCK  Moost.  30,  t.  21  (1821).     FICIN.  Fl.  Dresd.  ii,  54  (1823). 
Fuscina  purpurea  SCHRANK  Bayers,  fl.  ii,  453  (1789). 
Bryum  bipartitum  DICKS,  fasc.  II,  7,  (1790).  HOFFM.  WITH. 
Bryum  tenue  DICKS,  fasc.  Ill,  8. 

Dicran.  Celsii  SWARTZ  Suec.    HEDW.  Sp.  muse.     Eng.  bot.  t.  2418. 
Bryum  strictum  DICKS,  fasc.  iv. 
Bryum  papillosum  DICKS,  ibid. 
Dicr.  intermedium  6»  purpurascens  HEDW.  Sp.  muse. 

Dicr.  bipartitum,  SM.  Fl.  brit.     Eng.  bot.  t.  2357.     Dicr-  strictum  SM.  Fl.  brit. 
Trickostomum  papillosum  SM.  Fl.  brit.  1238.     Eng.  bot.  t.  2533. 

Didymodon  purpureus  HOOK.  TAYL.  Muse.  brit.  65,  t.  20  (1818).  GRAY  Nat.  arr.  br.  pi. 
i,  742  (1821).  HOOK.  Fl.  scot.  P.  II,  135  (1821),  Brit.  fl.  ii,  28  (1833).  BALS.  DE 
NOT.  Prod.  Bry.  mediol.  124  (1834).  MACK.  Fl.  hibern.  P.  2,  17  (1836). 
Cerotadon  purpureus  BRID.  Bry.  univ.  i,  480  (1826).  WALLR.  Fl.  cr.  germ,  i,  179  (1831). 
HUEBEN.  Muse.  germ.  276  (1833).  Hartm.  Skand.  fl.  BR.  SCHIMP.  Bry.  eur.  fasc.  29 — 
30,  p.  5,  t.  i — 2  (1846).  RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  134  (1848).  C.  MUELL.  Syn. 
646  (1849).  WILS.  Bry.  brit.  84,  t.  20  (1855).  SCHIMP.  Synops.  139  (1860),  2  ed.  135 
(1876).  BERK.  Handb.  br.  m.  275,  t.  23,  fig.  5  (1863).  MILDE  Bry.  siles.  130(1869). 
DE  NOT.  Epil.  bri.  ital.  568  (1869).  HOBK.  Syn.  br.  m.  49  (1873).  HUSN.  Mouss. 
nord-ouest  70  (1873).  JURATZ.  Laubm.  oesterr.-ung.  85  (1882). 
Trichostomum  purpureum  DE  NOT.  Syllab.  189  (1838). 

Dioicous ;  in  wide-spreading  patches,  olivaceous-green,  often  with 
a  rufous  or  fuscous  tint.  Stems  dichotomous,  £ — 3  in.  long,  fasti- 
giate,  radiculose  below.  Leaves  erecto-patent,  laxly  imbricated, 
incurved  and  somewhat  twisting  when  dry,  oblongo-lanc.,  subcomplicate- 
concave,  margin  revolute,  becoming  plane  at  apex,  entire  or  slightly 
denticulate  at  point ;  nerve  lost  at  apex  or  forming  a  cuspidate  point ; 
cells  at  base  pellucid,  elongate,  4 — 5  angled,  above  rounded-quadrate, 
nearly  smooth,  obscure  and  chlorophyllose.  Perich.  bracts  longer,  the 
innermost  longly  convolute-vaginant,  sinuate  above,  and  often  suddenly 
acuminate  and  crenulate  at  apex.  Caps,  on  a  long  purple  shining  seta, 
inclined,  oblong,  turgescent,  straight  or  a  little  curved,  purple  or  rufo- 


DiCRANACEjB.]  175  [Ceratodon. 

fuscous,  sulcate  when  dry  and  empty,  strumulose,  horizontal,  incurved, 
4 — 5  angled  ;  annulus  large,  compound,  rolling  back,  lid  conic,  slightly 
oblique,  polished ;  teeth  of  per.  purple  in  lower  half,  the  legs  equal,  con- 
joined at  base  by  the  united  articulations,  bordered  from  base  to  middle 
by  the  pale  projecting  inner  lamina. 

Male  plants  more  slender,  infl.  gemmaceous,  outer  bracts  broadly 
ovate,  acuminate,  with  a  thick  nerve,  inner  broadly  convolute,  obtuse, 
entire,  obsolete-nerved. 
HAB. — Gravelly  soil  on  heaths,  banks,  walls  and  rocks ;  everywhere.     Fr«4 — 5. 

The  polymorphous  character  of  this  plant  may  be  assumed  from  its 
lengthy  synonymy,  and  so  endless  are  the  forms  that  we  cannot  even  define 
stable  varieties  ;  one  of  the  most  marked  is  a  robust  livid-green  one,  i — 2  in. 
high,  with  broad  leaves,  found  on  several  of  the  Scotch  mountains,  and  also 
by  Mr.  Holt  on  banks  near  the  sea  in  the  Isle  of  Man.  We  would  advise  all 
commencing  bryologists  to  study  every  part  of  this  moss  well,  as  its  structure 
once  familiarized  to  the  eye  will  save  much  after  trouble,  and  the  beautiful 
peristome  must  attract  every  microscopist. 

2.  CERATODON  CONICUS  (Hampe)  Lindb. 

Dioicous  ;  leaves  ovato-lanc.  narrower  at  base,  margin  entire,  revo- 
lute  throughout,  nerve  longly  excurrent.  Capsule  on  a  paler  seta,  erect, 
symmetric,  faintly  sulcate  when  empty.  (T.  XXVI,  E.) 

SYN. — Trichostomum  conicum  HAMPE  in  litt.     C.  MUELL.  Synops.  i,  575  (1849). 
Ceratodon  conicus  LINDB.  Muse,  scand.  37  (1879). 

Dioicous;  csespitose,  dull  yellow-green  above,  fuscous  below; 
stems  short,  rather  slender  dichotomously  branched.  Leaves  erecto- 
appressed,  deep  green,  smooth,  crowded  at  top  into  a  small  closed 
coma,  straight  wet  or  dry,  rather  broadly  ovato-lanceolate,  margin  quite 
entire,  revolute  to  apex,  nerve  thick,  excurrent  in  a  long  point ;  cells  all 
small,  regularly  quadrate,  the  basal  larger  and  pellucid.  Perich.  bracts 
convolute-vaginant,  obtusate,  with  an  excurrent  nerve,  laxly  areolate. 
Caps,  on  a  pale  red  seta,  erect,  ovate-elliptic,  rather  wide,  fuscous,  when 
dry  and  empty  but  little  altered,  sulcate  in  upper  part,  not  strumulose  ; 
lid  purple,  conic  short,  obtuse  straight ;  teeth  pale,  red  at  base,  yellowish 
above,  erect,  with  fewer  articulations,  scarcely  bordered  externally. 

HAB. — Walls  and  waste  ground,  rare.         Fr.  5. 

On  the  coast  near  Newhaven  (Spruce  1845)  !  !     Ireland  (Mr.  D.  Orr).     Both  sterile. 

It  is  probable  that  this  moss  is  not  unfrequent  on  our  south  coasts,  but 
has  been  overlooked  for  the  common  species  in  the  absence  of  fruit  ;  this  was 
first  tound  by  Schlotheuber  in  May,  1847,  on  walls  near  Hochmiihlen,  in 
Hanover,  and  our  figures  are  taken  from  original  specimens. 


DICRANACE^E.]  176  \S<zlania. 

S^LANIA  LINDB. 

Utk.  till  en  nat.  grupp.  af  Eur.  bladm.  med  topps.  frukt,  35  (1878). 

Plants  caespitant ;  leaves  lanceolate,  minutely  areolate,  serrated, 
smooth,  covered  at  back  with  a  glaucous  granular-filamentose  excretion. 
Calyptra  cucullate.  Capsule  subcylindric,  erect,  leptodermous, 
slightly  plicate  when  dry ;  teeth  of  peristome  from  a  very  narrow 
basal  membrane,  16,  irregular,  cleft  to  base  into  two  non-trabeculate, 
nodose,  papillose  legs,  separate  or  joined  here  and  there  at  the  nodes. — 
Der.  after  Saslan,  a  Scandinavian  bryologist. 

i.  SJELANIA  C-ffiSIA  (Vill.)  Lindb. 

Autoicous ;  leaves  lanceolate,  acuminate,  glaucescent,  serrate 
toward  apex.  Caps,  oval-oblong,  pale  brown,  plicate  when  empty,  lid 
conic.  (T.  XXVI,  F.) 

SYN. — Brvum  ccesium  VILLARS  PI.  Dauph.  iii,  879  (1789),     BRID.  Muse.  rec.  II,  P.  Ill,  49  (1803). 

Trichostomum  glaucescens  HEDW.  Muse,  frond,  iii,  91,  t.  37  B  (1792),  Sp.  muse.  112  (1801). 
BRID.  Muse.  rec.  II,  P.  I,  123  (1798),  Sp.  muse.  I,  235  (1806),  Mant.  85  (1819).  SWARTZ 
Muse.  suec.  30  (1799).  SM.  Fl.  brit.  iii.  1245  (1804),  Eng.  hot.  t.  2381.  SCHWAEG. 
Suppl.  I.  P.  I,  125  (1811).  WAHLENB.  Fl.  lapp.  331  (1812),  Fl.  carpat.  341  (1814). 
FUNCK  Moost.  25,  t.  17  (1821).  DE  NOT.  Syllab.  194  (1838),  Epil.  bri.  ital.  510  (1869). 
BR.  SCHIMP.  Bry.  eur.  fasc.  18 — 20,  p.  18,  t.  15  (1843).  RABEN.  Deutsch,  kr.  fl.  ii,  S.  3, 
117  (1848).  C.  MUELL.  Synops,  i,  569  (1849).  WILS.  Bry.  brit.  118,  t.  33  (1855). 
HOBK.  Syn.  br.  m.  63  (1873). 

Bryum  glaucescens  DICKS.  Crypt,  fasc.  IV,  10  (1801). 

Didymodon  glaucescens  WEB.  MOHR  Bot.  Tasch.  158  (1807).  SCHKUHR  Deutsch.  kr. 
gew.  P.  II,  67,  t.  30  (1810).  ROEHL.  Deutsch.  fl.  iii,  57  (1813).  GREV.  Scott,  cr.  fl.  iii, 
1.127(1825).  BRID.  Bry.  univ.  i,  513  (1826).  HOOK.  TAYL.  Muse.  br.  2  ed.  116,  t. 
suppl.  3  (1827).  HOOK.  Br.  fl.  ii,  29  (1833). 

Didymodon  ceruginosus  HOOK.  Mss.  BRID.  Bry.  univ.  i,  516. 

Leptotrlchum  glaucescens  HAMPE  in  Linnasa  XX,  74  (1846).     Schimp.  Synops.    146  (1860), 

2  ed.  145  (1876).     BERK.   Handb.   br.  m.   263    (1863).     MILDE   Bry.   siles.    138   (1869). 

JURATZ.  Laubm.  oesterr. — ung.  82  (1882). 

Ditrichum  glaucescens  HAMPE  in  Flora  1867,  p.  182. 
Scelania  ccesia  LINDB.  I.e.  et  Muse,  scand.  28  (1879). 

Autoicous;  densely  csespitose,  about  | — f  in.  high,  erect,  very 
slender,  much  branched,  fastigiate,  yellowish-green  above,  and  glau- 
cescent from  a  mealy  production  on  the  leaves,  ferruginous  and  some- 
what radiculose  below.  Leaves  minute  and  distant  below,  comose  and 
erecto-patent  above,  somewhat  twisting  at  point,  smooth,  from  a  lanceo- 
late base,  lineal-subulate,  acute,  carinate,  margin  erect,  serrated  at  apex, 
nerve  lost  in  the  point ;  all  the  cells  quadrate-rectangular,  firm,  chloro- 
phyllose.  Perich.  bracts  not  vaginant,  resembling  the  leaves  but  longer 
and  more  laxly  areolate,  the  margin  of  two  layers  of  cells ;  caps,  on  a 
yellowish-red  seta,  erect,  oval-oblong,  subcylindraceous,  olivaceous, 
finally  pale  fuscous,  leptodermous,  irregularly  plicate  when  empty ; 
annulus  compound  ;  lid  conico-rostellate,  pale  red,  suboblique  ;  teeth 


DICRANACE^.]  177  [Salania. 

deep  purple,  long,  erect,  very  variable,  papillose,  the  legs  binate,  more 
or  less  united  at  base  or  partly  obsolete. 

Male  infl.  gemmaceous,  on  short  branches  below  the  perichsetia, 
bracts  3,  broadly  ovate,  suddenly  subulate,  concave,  patulous. 
HAB. — Rocks  covered  with  earth  on  the  Highland  mountains ;  rare.      Fr.  7—  8. 

Glen  Phee  (Drummond)  ! !     Clova  (Fergusson) !  ! 

Lindberg  regards  this  moss  as  holding  the  same  position  in  Oncophorese 
as  Ditrichum  does  in  Ditricheae,  from  which  its  much  closer  affinity  to  Ceratodon 
necessarily  separates  it.  It  is  a  good  example  of  a  truly  natural  genus. 


TAB.  XIV.  A.  Archidium  alternifolium  (Todmorden,  Nowell).  B.  Pleuridium  axillare  (Mere, 
Hunt).  R.  var.  strictum  (Dickson).  C.  Pleur.  subulatum  (Hampstead,  Braithwaite). 

D.  Pleur.  alternifolium  (Helsby,  Hunt).     E.  Ditrichum  tenuifolinm  (Finland, Lindberg). 

F.  Ditr.  tortile  and  R.  var.  pusillum    (Castle   Howard,  Black).     G.  Ditr.  homomallum 
(Sale,  Wilson),  R.  var.  zonatum   (Clova,   Fergusson).     H.  Ditr.  subulatum    (Saltash, 
Holmes). 

TAB.  XV.  A.  Ditr.  flexicaule  (A.  Finland,  Lindberg).  c.  &  ft.  var.  densum  (Cheedale,  West). 
B.  Swartzia  montana  and  R.  var.  compacta  (Ben  Lawers,  Braithwaite).  C.  Sw. 
inclinata  (Sands  of  Barrie,  Gardiner).  D.  Dicranella  crispa  (Gale  green,  Wilson). 

E.  Dicr.  secunda  (Gibson  wood,  Nowell).   F.  Dicr.  curvata  (Cwm  Gafr,  Wilson).     G. 
Dicr.   heteromalla   (Chislehurst,   Braithwaite),    R.   var.    stricta   (Inverness,   Croall),  y, 
var.  interrupta  (Ardingly,  Davies),  ft.  var.  sericea  (Alderley,  Hunt). 

TAB.  XVI.  A.  Dicr.  cermculata  (Levens,  Barnes).  B.  Anisothecium  rubrum  and  fi.  var. 
tenuifolium  (Bangor,  Wilson),  £.  var.  callistomum  (Scotland,  Dickson).  C.  Anis. 
rufescens  (Ashley,  Hunt).  D.  Anis.  Grevillci  (Glen  Tilt,  Hooker).  E.  Anis.  crispum 
(Bowdon,  Himt),  R.  var.  datum  (Stirrupwood,  Nowell).  F.  Anis.  squarrosum  (Lawers, 
Braithwaite).  G.  Seligeria  Donii  (Castleton,  Whitehead).  H.  Sel.  pusilla  (Levens, 
Barnes).  I.  Sel.  acutifolia  (Gotland,  Lindberg),  R.  var.  longiseta  (Tideswell  dale, 
Whitehead).  K.  Sel.  trifaria  (Litton,  Whitehead). 

TAB.  XVII.  A.  Sel.  paucifolia  (Lewes,  Unwin).  B.  Sel.  calcarea  (Shere,  Capron).  C.  Sel. 
setacea  (Greenfield,  Whitehead).  D.  Brachydontium  trichodes  (Westward,  Wood). 
E.  Blindia  cczspiticia  (Ben  Lawers,  Hunt).  F.  Bl.  acuta  (Ben  Ledi,  Braithwaite). 

G.  Didymodon   denudatus   (Skye,  Lawson),   R,   var.    alpinus     (Lough    Bray,    Moore). 
H.  Dicranum  asperulum  (Mains  Castle,  Gait).     I.  Campylopus  pyriformis    (Ightham, 
Braithwaite). 

TAB.  XVIII.  A.  Campylopus  fragilis  (Ben  Ledi,  Braithwaite).  B.  Camp,  subulatus  (Killarney, 
Wilson).  C.  Camp.  Schimperi  (Ben  Lawers,  Braithwaite).  D.  Camp.  Schwarzii 
(Glencoe,  Hunt).  E.  Camp,  setifolius  (Cromaglown,  Moore).  F.  Camp,  flexuosus 
(Glyder  Vawr,  Wild),  ft.  var.  paludosus  (Loch  Maree,  Boswell).  G.  Camp,  paradoxus 
(Wooler,  Hardy). 

TAB.  XIX.  A,  Camp.  Shawii  and  ft-  var.  hamatus  (N.  Uist,  Shaw).  B.  Camp,  atrovirens 
(Killin,  Braithwaite),  {$•  var.  falcatus  (Connemara,  Barker).  C.  Camp,  introjlexus 
(a.  Oporto,  Newton,  b.  Penzance,  Curnow).  D.  Camp,  brevipilus  (Lewis,  Braithwaite). 
E.  Dicranoweissia  crispula  (Ben  Lawers,  Braithwaite).  F.  Dicranow.  cirrhata  (Levens, 
Barnes).  G.  Dicranum  fulvellum  (Scawfell,  Baker). 

TAB.  XX.  A.  Dicranum  schisti  (Ben  Lawers,  Braithwaite).  B.  Dicr.  falcatum  (Ben  Lawers, 
Braithwaite).  C.  Dicr.  Starkei  (Glen  Callater,  Hunt).  D.  Dicr.  molle  (Braemar, 
Black).  E.  Dicr.  majus  (Eskdale,  Braithwaite). 

TAB.  XXI.  A.  Dicr.  scoparium  (Eskdale,  Braithwaite),  ft.  var.  alpestre  (Innisfallen,  Hunt), 
y.  var.  recurvatum  (Godalming,  Mitten),  c).  var.  turfosum  (Wesley).  B.  Dicr.  Bonjeani 
(Bowness,  Barnes),  ft.  var.  jumper  if olium  (Blandford,  Boswell),  y.  var.  calcareum 
(Woolstonbury,  Mitten). 

TAB.  XXII.  A.  Dicr.  spurium  (Barmby  Moor,  Spruce).  B.  Dicr.  Bergeri  (Wybunbury  Bog 
Wilson).  C.  Dicr.  congestum  (Lojo,  Finland,  Lindberg),  ft.  var.  fiexicaule  (Loch-na- 
Gar,  Black).  D.  Dicr.  fuscescens  (Ben  Lawers,  Braithwaite),  ft.  var.  falcifolium 
(Dunoon,  Stirton). 


DlCRANACEjB.]  178 

TAB.  XXIII.  A.  Dlcr.  elongatum  (a.  Guldbransdalen,  Jensen;  c.  Corrie  Ardor,  Fergiisson). 
B.  Dicr.  montanum  (a.  Finland,  Lindberg,  c.  Button  Park,  Bagnall).  C.  Dicr.  flagellare 
(a.  Tyrol,  Schliephacke,  c.  Bostol  wood,  Holmes).  D.  Dicr.  viride\(a..  Finland,  Lindberg, 
c.  Abbots  Bromley,  Bloxam).  E.  Dicr.  Scottii  (Plymouth,  Holmes). 

TAB.  XXIV.  A.  Dicr.  Sauteri  (Tyrol,  Sauter),  /?•  var.  curvulum  (Braemar,  Black).  B.  Dicr. 
longifolium  (a.  Finland,  Lindberg,  c.  Ben  Lawers,  Hunt).  C.  Dicr.  uncinatum  (a.  Ne- 
pal, Wallich,  c.  Ben  Voirlich,  McKinlay).  D.  Dichodontium  pellucidum  (Whitby, 
Braithwaite),  fl-  var.  fagimontanum  (Ben  Lawers,  Braithwaite).  E.  Dichod.  flavescens 
(Eskdale,  Braithwaite). 

TAB.  XXV.  A.  Oncophorus  Wahlenbergii  (Krimml,  Davies).  B.  /?.  ditto,  var.  compactus  (Col 
di  Stelvio,  Schimper).  B.  Owe.  virens  (Clova,  Braithwaite).  C.  Owe.  strumifer  (Glen 
Phee,  Hunt).  D.  Owe.  gracilescens  (Glen  Phee,  Fer^Mssow).  E.  0?zc.  polycarpus  (Clova, 


TAB.  XXVI.     A.  Owe.  Bruntoni  (Ballater,  J/MW^).     B.  Owe.  crispatus  (Green's  clough,  Nowelt). 
C.  Owe.  striatus  (Penmaenmawr,  Braithwaite).     D.  Ceratodon  purpureus   (Chislehurst, 
Braithwaite).     E.  Cerat.  conicus  (a.  Hochmuhlen,  Schlotheuber,  c.  Newhaven,  Spruce). 
F.  Scelania  ccesia  (Glen  Phee,  Fergusson). 
a.  Fertile  plant,     a*.  Ditto  mag.      b.  Male.     c.  Sterile  plant,      i.  Leaf.  mag.      i  x. 

Transv.  section  of  leaf,     i  a.  Apex  of  leaf,     i  aa,  i  ab.  Areolation  of  apex  and  base. 

2.  Perich.  bract.     2  x.  Transv.  section,      aaa,  2ab.  Areolation  of  apex  and  base.    3. 

Male  infl.   4.  Bract,  antheridia  and  paraphyses.   5.  Capsule.   6.  Calyptra.    7.  Mouth 

of  caps,  and  peristome.     8.  Teeth  of  peristome.     9.  Spores.     10.  Annulus. 

(Corrig.  p.  91,  for  Merceya  read  Metzleria.) 


DJCRANACE^E. 


T.  XIV. 


Bf  Mbso-Fl. 


TJICHANACEyE. 


rr.  xv. 


Tf.BmM»atie  ad  not,  J.  Nugent  Titch,  lith. 


Mntvrn.  tire's  vnp- 


B^Moss-Fl. 


DICRANACE^E. 


•a.b.  '  2.          1.  /a 

Anisothec.    rubruin. 


J.Nuf/cnt    Rteh,  Hth 


T.XVII 


JRJiraitlmuilf  ,U.atl.,,at  il'.Hirh  lilii 


ihzttern  Bros  imp 


BrMoss.-Fl. 


T.  XVIII. 


.,  n«.n,a..  W.  tiu-h.  fah. 


BrMoss.-Fl. 


DICRANACE^E. 


T.XIX. 


Campyl     Sharwii. 


wmm 

,fc. 

Dicranow.   cirrata 


Minterrv  Bros .  imp . 


Br  Moss-Fl. 


DICRANACE^E. 


T.XX. 


R  XrcaihwcaU  del  ad  not  W.  Rich  Ulk. 


Mintern-Jfrcs.  imp 


Br  Moss. -PI 


DICRANACEJE. 


T.  XXL. 


l.o,  b. 

Dicr.    scqpariuTn. 


Dicr.  BonjeaTri. 


R£nutfotmtf  del  nd  not  E  Ctcrte 


Jfintfm  Brcs  imp 


BTMoss-Fl. 


lab 


Dicr.    s-pimirm. 


lab 


Dior.   Bergen. 


Dicr.    conge  stum. 


R.Brauthwaitt>,  dflad  not  E  Carter,  sc 


Dicr.    elongatum 


Dicr    ScotLii. 


moTrtanum . 


^ 


Dicr.    flagellare 


Dicr.   vinde. 


del  .ail  nat.f.  Carter  sr. 


RBraithwtate  dd  ad  not,    E.  Ci 


Br.Mbss.-H. 


UICRANACE^E. 


T.  XXV 


Mijctt 


Br.  MbssFL 


DICRANACELffi 


T.  XXVI 


1.0,6 


1.x. 

One,  Bruntcmi. 


l.aa,  TL  afe. 

Cera,todori,  purpureas. 


lat. 


One    crisp  atus. 


! 


One.  striatu.: 


1  aa 

Saelajnia  caesia. 


1.0,}). 


itt  drl  af7  nat   £  Carter  j 


Mnta-n  Bro, 


TORTULACE^E. 


Subf.  i      TORTULEM. 

EPHEMERUM     HAMPE. 
serratum  (Schreb.)  Hampe. 
minutissimum  Lindb. 
intermedium  Mitt. 
cohaerens  (Hedw.)  Hampe. 
stenophyllum   Voit)  Schpr. 
6. recurvifolium  (Dicks.)  Hampe. 

ACAULON  C.  MUELL. 

1.  Acaulon  muticum  (Schreb.)  C.  M. 

2.  mediterranean  Limpr. 

3.  triquetrum  (Spruce)  C.  M. 

PHASCUM  L. 
1.  Phase  urn  acaulon  L. 

2. Floerkei  Web.  Mohr. 

3. curvicolle  Ehrh. 

POTTIA   EHRH. 
1.  Pottia  recta  (With.)  L'itt. 


bryoides  (Dicks.)  Mitt. 
Heimii  (Hedw.)  Fuern. 
truncatula  (L.)  Lindb. 
intermedia  (Turn.)  Fuern. 
litoralis  Mitt. 


2.  — 

3.  — 

4.  — 

5.  — 

6.  — 

7. lanceolata  (Hedw.)  C.  M. 

8. caespitosa  (Bruch)  C.  M. 

9. Starkei  (Hedw.)  C.  M. 

10. asperula  Mitt. 

11. viridifolia  Mitt. 

12.  Wilsoni  (Hook.)  Br.  Sch. 

13. crinita  Wils. 

14.  latifolia  (Schwaeg.)  C.  M. 


TORTULA  HEDW. 

Tortula  pusilla  (Hedw.)  Mitt. 

lamellata  Lindb. 

brevirostris  Hook.  Grev. 

stellata  (Schreb.)  Lindb. 


ericaefolia  (Neck.)  Lind 

aloides  (Koch)  De  Not. 


—  atrovirens  (Sm.)  Lindb. 

cuneifolia  (Dicks.)  Roth. 

Vahlii  (Schultz)  Wils. 

marginata  (By.  Sch.)  Spruce. 

canescens  Mont. 

niuralis  (L.)  Hedw. 

subulata  (L.)  Hedw. 

angustata  Wils. 

suberecta  Drumm. 

mutica  (Schultz)  Lindb. 

papillosa  Wils. 

laevipila  (Brid.)  Schwaeg. 

montana  (Nees)  Lindb. 

ruralis  (L.)  Ehrh. 

princeps  De  Not. 


PLEUROCH^ETE  LINDB. 
1.  Pleur.  squarrosa  (Brid.)  Lindb. 


MOLLIA  SCHRANK. 

1.  Mollia  crispa  (Hedw.)  Liudb. 

2. multicapsularis  (Sm.)  Lindb. 

3. Mittenii  (Br.  Sch.)  Braithw. 

4. rostellata  (Brid.)  Lindb. 

5. microstoma  (Hedw.)  Lindb. 

6. squarrosa  (Nt-es  Hsch.)  Lindb. 

7. condensa  (Voit)  Lindb. 

8. viridula  (L.)  Lindb. 

9. rutilans  (Hedw.)  Lindb. 

10.  —         —  tenuis  (Schrad.)  Lindb. 

11. calcarea  (Nees  Hsch.)  Lindb. 

12. aeruginosa  (Sm.)  Lindb. 

13.  verticillata  (L.)  Lindb. 

14.  crispula  (Bruch)  Lindb. 

15. litoralis  (Mitt.)  Lindb. 

16. brachydontia  (Bruch)  Lindb. 

17. lutescens  Lindb. 

18.  tenuirostris  (Hook.  Tay.)  Lindb. 

19. hibernica  (Mitt.)  Lindb. 

20. flavovirens  (Bruch)  Lindb. 

21. nitida  Lindb. 

22. inclinata  (Hedw.fil.)  Lindb. 

23. tortuosa  (L.)  Schrank. 

24. fragilis  (Drumm.)  Lindb. 

LEPTODONTIUM    HAMPE. 
1.  Leptod.  flexifolium  (Dicks.)  Hampe. 

2. gemmascens  (Mitt.)  Braithw. 

3. recurvifolium  (Tayl.)  Lindb. 

BARBULA    HEDW. 

1.  Barbula  curvirostris  (Ehrh.)  Lindb. 

2. rubella  (Hoffm.)  Mitt. 

3. lurida  (Hornsch.)  Lindb. 

4.  brevifolia  (Dicks.)  Lindb. 

5. fallax  Hedw. 

6.  reflexa  Brid. 

7. spadicea  Mitt. 

8.  —        —  rigidula  (Hedw.)  Mitt. 

9. acuta  Brid. 

10. cylindrica  (Tayl.)  Schimp 

11. sinuosa  (Wils.) 

12.  Hornschuchii  Schultz. 

13. revoluta  (Schrad.)  Brid. 

14. convoluta  Hedw. 

15. unguiculata  (Huds.)  Hedw. 

16. mucronata  Brid. 

Subf.  2.     CINCLIDOTEJE. 

CINCLIDOTUS   P.  BEAUV. 
1.  Cincl.  fontinaloides  (Hedw.)  P.  Beauv. 

Subf.  3.     LEERSIEJE. 

LEERSIA  HEDW. 

1.  Leersia  alpina  (Sm.)  Lindb. 

2.  exstinctoria  (L.)  Leyss. 

3. laciniata  Hedw. 

4.  rhabdocarpa  (Schwaeg.)  Lindb. 

5. contorta  (Wulf.)  Lindb. 


Fam.  8.     TORTULACE^E. 

Plants  generally  rooting  only  at  base,  csespitant  or  pulvinate, 
dichotomous  and  fastigiate  branched.  Leaves  ovate,  lanceolate  or 
spathulate,  soft,  areolation  above  hexagono-quadrate  and  rounded, 
usually  highly  chlorophyllose  and  papillose,  at  base  larger,  hexagono- 
rectangular,  hyaline.  Calyptra  cucullate,  rarely  mitraeform  or  lobed  ; 
caps,  erect,  oval,  oblong  or  subcylindric,  cleistocarpous,  gymnostomous 
or  peristomate,  teeth  16,  on  a  more  or  less  elongated  tubular  basal 
membrane,  lanceolate,  or  irregularly  perforated,  or  cleft  to  base  into  32 
lineal  or  filiform  legs  ;  strongly  papillose,  straight,  oblique  or  contorted  ; 
spores  large  and  granulose  or  small  and  smooth.  Inhabiting  the  ground, 
walls,  rocks  and  tree-trunks ;  much  more  prevalent  in  the  lowlands 
than  on  mountains. 

This  widely  distributed  family,  so  rich  in  species — for  it  includes  pro- 
bably not  less  than  800 — is  a  most  difficult  one  to  deal  with,  and  has  taxed 
the  ingenuity  of  every  bryologist  to  arrange  the  species  in  well-defined  genera. 
The  variations  in  habit,  colour  and  leaf-structure  afford  more  stable  ground 
for  generic  characters  than  the  peristome,  and  this  was  first  advocated  by  Mr. 
Mitten  in  his  Musci  India  Or.  (1859),  but  there  has  been  an  indisposition  to 
break  up  the  great  genus  Torttila,  resting  solely  on  the  twisted  peristome,  but 
combined  with  a  variable  structure  of  leaves,  and  still  stronger  was  the  objection 
to  admit  gymnostomous  species  as  congeners  with  peristomate  ones,  although 
no  mosses  more  clearly  exhibit  the  weakness  of  this  distinction  than  some  of 
the  old  Gymnostomums  now  referred  to  Pottia,  and  the  genusAnacalypta.  Lind- 
berg  in  his  Musci  Scandinavia  has  fully  carried  out  the  modern  views,  and  I 
can  only  advise  all  bryologists  to  study  the  plants  themselves  under  this 
newer  aspect,  feeling  assured  that  they  will  soon  appreciate  the  soundness  of 
a  natural  classification. 

Mitten  and  Lindberg  unite  Pottia  with  Tortula,  and  no  doubt  correctly, 
if  we  take  a  wide  view  of  the  genus,  but  as  the  Pottias  have  a  certain  distinc- 
tive habit,  and  when  the  peristome  is  present  the  teeth  have  usually  a  flat 
form,  I  have  retained  the  genus,  rather  perhaps  from  the  point  of  convenience, 
as  every  one  must  see  that  Pottia  pusilla  and  Tortula  lamellata  ought  to  be 
congeneric. 

We  shall  perhaps  get  the  truest  conception  of  the  genera  if  we  regard 
each  as  the  centre  of  a  group  of  species,  among  which  are  phascoid,  gymnos- 
tomous and  peristomate  forms,  and  radiating  in  various  directions  towards 
each  other;  e.g.,  Tortula  niralis  and  Encalypta  streptocaypa  have  a  strong  point 
of  affinity  in  the  verruciform  papillae  of  their  leaves.  The  form  of  the  papillae 
deserves  notice,  and  they  have  not  perhaps  had  sufficient  attention  directed 


TORTULACE^.]  182  [Ephemerum. 

to  them,  thus  in  Pottia  they  are  conical  and  also  in  many  species  of  Bavbula 
and  Tortula ;  in  others  again  they  are  cleft  in  the  centre  by  a  semilunar 
excavation,  and  in  some  as  just  mentioned,  still  more  lobulate  like  a  wart. 

The  teeth  of  the  peristome  are  also  usually  rough  with  minute  papillae, 
and  they  exhibit  such  gradual  stages  of  development  in  the  membrane  which 
unites  them  at  base,  from  a  scarcely  projecting  band  to  a  long  tesselatediube, 
that  the  variations  fail  to  afford  a  generic  character,  though  available  for 
minor  groups. 

Of  still  less  value  is  the  direction  of  the  teeth,  for  they  may  be  quite 
straight,  or  ascend  obliquely,  or  form  a  half  spiral  or  one  of  several  turns. 
Three  European  genera  do  not  enter  into  our  Flora,  Aschisma  LINDB. 
founded  on  Phascum  carniolicum,  Molendoa  LINDB.  for  Ancectangium  Hornschnchii 
and  its  variety  Sendtneri,  and  Scopelophila  MITTEN  =  Merceya  SCHIMP.  allied 
to  Encalypta.  Special  papers  on  this  family  are  SCHULTZ  "  Recensio  genemm 
Barbulce  et  Syntrichics  "  in  Nova  Acta  Phys.-Med.  acad.  caes.  Leop.  Carolin. 
nat.  cur.  xi,  1, 191  (1823),  DE  NOTARIS  "  Musci  Italici."  fasc.  i,  Tortula  (1862) ; 
and  LINDBERG  "  De  Tortulis  et  ceteris  Trichostomaceis  Euwpoeis  "  in  Oefv.  af  kon. 
vetens.  akad.  Foerhandl.  xxi  (1864).  Schultz  remarks  on  the  difficulty  of 
separating  some  Tortula  from  Trichostomum. 

Subf.  i.  TORTULEsE.  Calyptra  cucullate.  Teeth  of  peristome 
papillose,  straight  or  contorted,  16,  cleft  to  base  or  more  or  less  united  into  a 
tube  ;  sometimes  wanting,  or  the  capsule  may  be  inoperculate. 


i.     EPHEMERUM  HAMPE. 

(Flora,  1837,  P-  285.) 

Plants  simple,  minute,  gregarious,  with  persistent,  dichotomous, 
fasciculate-branched  protonema  forming  a  byssaceous  tuft.  Leaves 
sparingly  chlorophyllose,  the  cells  rhomboidal,  lax,  hyaline  ;  smooth  or 
papillose.  Calyptra  thin,  campanulate,  cleft  on  one  side  or  lacerate  at 
base.  Capsule  immersed  in  the  perichaetium,  globose,  apiculate,  cleis- 
tocarpous,  composed  of  two  strata  of  cells,  without  special  spore  sac  or 
columella;  spores  large.  Male  plants  very  small,  nestling  near  the 
female  on  the  same  protonema,  bracts  3—4,  with  few  or  no  paraphyses. 
Inhabiting  moist  bare  places. — Der.  e^/xcpos,  evanescent. 

Among  the  most  minute  of  mosses,  and  only  evident  by  the  numerous 
individuals  aggregated  into  patches  ;  their  structure  also  is  frail  and  delicate, 
and  they  seem  incapable  of  maintaining  independent  existence,  but  like  poor 
weakly  children,  retain  their  nurse  on  the  establishment  all  through  their 
short  lives,  in  their  supporting  protonema;  yet  when  brought  under  the 
microscope  they  prove  to  be  veritable  little  gems,  and  well  repay  careful 
investigation.  About  18  species  are  known,  chiefly  from  N.  America  and 
the  Cape  of  Good  Hope,  and  although  they  have  been  usually  placed  with 
the  Funariaceae,  their  affinity  appears  to  be  greater  with  the  genus  Phascum, 
both  in  the  calyptra  and  areolation. 


TORTULACE^E.I  183  [Epheuterum. 

CLAVIS  TO  THE  SPECIES. 

Leaves  nerveless. 

Leaves  ovato-lanceolate,  spores  rough.  serratum, 

Leaves  lanceolate-acuminate,  spores  smooth.  minutissimum. 

Leaves  nerved. 

Nerve  lost  in  lower  half  of  leaf.  intermedium. 

Nerve  distinct  below. 

Nerve  vanishing  at  apex.  cohcerens. 

Nerve  excurrent. 

Leaves  lanc.-subulate,  nerve  \  width  of  base.  stcnophyllum. 

Leaves  oblong-linear,  nerve  £  width  of  base.  recurvifolium. 

i.  EPHEMERUM  SERRATUM  (Schreb.)  Hampe. 

Leaves  ovato-lanceolate,  nerveless,  serrate.  Capsule  immersed, 
glossy  purple,  oval-globose  with  a  blunt  point,  spores  rough. 
(T.  XXVII,  A.) 

SYN. — Phascum   serratum   SCHREB.  de  Phasco  g,   t.  2   (1770),  Spic.  Fl.  lips.  73  (1771).     WEB. 

Spic.  fl.  goett.  124  (1778).     WIGQ.  Prim.  fl.  hols.  81  (1780).     DICKS.  PL  crypt.  Fasc.  I, 

i,  t.  i,  fig.  i  (1785).     ROTH  Fl.  germ,  i,  452  (1788)  et  iii,  P.  I,  115.     TIMM   Pr.  fl.  meg. 

n.  720  (1788).     Eng.  Bot.  t.  460.     SCHRAD.  Spic.  fl.   germ,  i,  58  (1794).     WITH.   bot. 

arr.  br.  veg.  3  ed.  iii,  785  (1796).     BRID.  Muse.  rec.  II,  P.  I,  n  (1798),  Sp.  muse.  I,  2 

(1806),  Mant.  6  (1819),  Bry.  univ.  i,  28  (1826).     HULL  Br.  fl.  P.  2,  251   (1799).     ROEHL. 

Moosg.  deutsch.  19  (1800),  Deutsch.  fl.  iii,  33  (1813),  Ann.  wet.  ges,  i,  183.     HEDW.   Sp. 

muse.  23  (1801).     SM.  Fl.  brit.  iii,  1166  (1804).     TURN.  Muse.  hib.  4  (1804).     P.  BEAUV. 

Prodr.  82  (1805).     SCHULTZ  Fl.  starg.  271  (1806).     WEB.  MOHR.  Bot.  Tasch.  71  (1807). 

SCHKUHR  Deutsch.  kr.  gew.  P.  2,  10,  t.  4  (1810).     SCHWAEG.   Suppl.  I,  P.  I,  6  (1811). 

VOIT  Muse.  herb.  9  (1812).     LA  PYL.  Journ.  Bot.  1813,  p.  285,  t.  20,  f.  17.      MART.  Fl. 

cr.  erl.  124  (1817).     HOOK.  TAYL.  Muse.  br.  4,  t.  5  (1818).     GRAY  Nat.  arr.  br.  pi.  i,  710 

(1821).     FUNCK  Moost.  2,  t.  i  (1821).     HOOK.  Fl.  scot.  P.  II,  121   (1821),   Brit.  fl.  ii,   2 

(1833).     NEES  HSCH.  Bry.  germ,  i,  35,  t.  4,  f.  i  (1823).     HUEBEN.  Muse.  germ.  2  (1833). 

HARTM.  Skand.  fl.     MACK.  Fl.  hib.  P.  2,  7  (1836).     BR.  SCHIMP.  Bry.  eur.  fasc.  i,  p.  6, 

t.  i  (1837).     DE  NOT.  Syll.  muse.  313  (1838).     WILS.  Bry.  brit.  26,  t.  5  (1855).     HOBK. 

Syn.  br.  m.  26  (1873). 
Phascum  stoloniferum  DICKS.  PI.  crypt,  fasc  III,  i,  t.  7,  f.   2   (1793).     WITH.  op.  c.  786. 

HULL  op.  c.  252.     SM.  Fl.  Brit.  1157,  Eng.  Bot.  t.  2006. 
Phase,  velutinum  HOFFM.  Deutsch.  fl.  ii,  20  (1796). 

Phase,  confervoides  BRID.  Muse.  rec.  II,  P.  I,  12.     ROEHL.  Deutsch.  moos.  20.     P.  BEAUV. 

Prodr.  81. 
Ephemerum  serratum  HAMPE  in  Flora  1837,  P-  2^5-     RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  84 

(1848).     C.  MUELL.  in  Bot.  Zeit.  1847,  P-  IO1  '.  syn-  muse,  i,  31   (1849).      BR.  SCHIMP. 

Bry.  eur.  fasc.  42,  Mon.  3,  t.  i  (1849).     SCHIMP.  Synops.  3  (1860).      BERK.   Handb.  br. 

rn.  304   (1863).      DE  NOT.  Epil.  briol.   ital.  742  (1869).     MILDE  Bry.  siles.  igo  (i86g). 

JAEGER  Ber.  der  St.  Gall.  nat.  gesells.  1869,  p.  98.    HUSN.  Mouss.  nord-ouest  32  (1873). 

JURATZ.  Laubm.  oester.-ung.  4  (1882).     LESQ.  JAMES  Mosses  N.  Amer.  37  (1884). 

Dioicous  ;  plants  very  minute,  nestling  in  dense  intricate  deep  green 
protonema.  Leaves  nerveless,  erecto-patent,  6 — 9,  lower  very  small 
ovato-acuminate,  upper  much  larger,  ovato-lanceolate,  the  margin 
coarsely  and  irregularly  serrate  to  below  the  middle  ;  cells  lax  hyaline, 
rhombo-hexagonal,  upper  smaller,  more  or  less  incrassate.  Caps, 
immersed,  almost  sessile,  subglobose,  shortly  apiculate,  glossy  rufous 
purple ;  calyp.  whitish,  reaching  middle  of  caps,  bi-trilacerate ;  spores 
50 — 100,  ferruginous,  granulated.  Male  pi.  near  the  female,  fuscescent  ; 
bracts  3,  ovato-lanceolate  toothed. 
HAB. — Damp  clay  fields  and  ditch-banks  ;  not  rare.  Fr.  12—2. 


TORTULACE^E.]  184  [Ephemerum. 

2.  EPHEMERUM  MINUTISSIMUM  Lindb. 

Leaves  narrowly  lanceolato-acuminate,  nerveless,  serrate.  Capsule 
emergent,  castaneous,  spores  smooth.  (T.  XXVII,  B.) 

S\N.- -Ephemerum  serratum  Var./2.  angnstifolium  Bry.  eur.  fasc.  42   (1849).      SCHIMP.  Synops. 

et  alior.  auct.  p.p. 

Ephemerum   minutissimum  LINDB.  in  Not.  ur  Sails,  pro  Fn.  Fl.  fenn.  fdrh.  xiii,  411   (1874). 
Ephemerum  novale  MITT,  in  litt. 

Dioicous,  resembling  E.  serratum  but  much  smaller.  Leaves  shorter, 
erecto-patent  or  subsecund,  narrowly  lanceolate,  channelled,  attenuated 
and  flexuose  at  points,  margin  irregularly  serrate  above,  cells  more 
elongated.  Capsule  emergent,  leptodermous,  pale  castaneous,  larger  in 
proportion  to  the  size  of  plant,  globose  ovate  with  a  conical  point ; 
calyptra  irregularly  split  into  several  lobes ;  spores  smooth,  smaller. 
HAB.— Ploughed  fields.  Fr.  n. 

Near  Hurstpierpoint  (Mitten,  1845) !  ! 

Mr.  Mitten's  name  had  been  engraved  on  the  plate  before  its  identity 
with  Lindberg's  species  had  been  determined.  There  is  something  in  the 
look  of  the  plant,  so  different  from  that  of  E.  serratum,  that  we  think  there 
can  be  no  doubt  of  its  distinctness,  while  its  small  size  has  caused  it  to  be 
overlooked. 

3.  EPHEMERUM  INTERMEDIUM  Mitt. 

Plants  on  much  branched  protonema.  Leaves  broadly  lanceolate, 
faintly  nerved  in  the  upper  half  only.  Spores  slightly  rough. 
(T.  XXVII,  C.) 

SYN.— Ephemerum  coharens  p.p.   SCHIMP.  WILS.  Bry.  brit.  27.      BERK.   Handb.  br.  m.  304. 
HOBK. 

Ephemerum  intermedium  MITT,  in  litt. 

Ephem.  tenttinerve  LINDB.  MSS. 

Ephcm.  serratum  Var.  y.  prcecox  JAEG.  Ber.  St.  Gall,  gesells.  1869,  p.  99. 

Dioicous  ;  resembling  E.  serratum,  the  plants  very  small,  on  much 
branched  protonema.  Leaves  broadly  lanceolate,  coarsely  serrate  in 
the  upper  half,  the  lower  small,  nerveless,  upper  elongated,  narrowed 
into  a  longish  point  composed  entirely  of  the  faint  nerve,  which  is 
wanting  in  the  lower  half  of  the  leaf;  cells  at  base  lax,  more  chloro- 
phyllose,  upper  firmer.,  narrower  more  incrassate.  Caps,  reddish  brown, 
globose,  apiculate ;  cal.  deeply  cleft  on  one  side,  with  2 — 3  lacerations 
at  base  ;  spores  large,  granulose. 
HAB.—  Fallow  fields,  rare.  Fr.  10 — 12. 

Hurstpierpoint  (Mitten   1847)  !  !      Exposed  mud  of  pond  at    Pondleigh   (Mitten).     Near 
Brighton  and  several  places  in  the  Weald  of  Sussex  (Davies  1858) !  ! 

This  moss  is  nearer  to  E.  serratum  than  to  the  next  species,  and  as  the 
two  sometimes  grow  together,  it  is  probable  that  Schimper  was  thus  led 
astray,  and  his  remarks  at  p.  4  of  the  Synopsis  2  ed.  explained  ;  Wilson 
evidently  did  not  distinguish  it. 


TORTULACE^.]  185  [Ephemerum. 

4.  EPHEMERUM  COHJERENS  (Hedw.}  Hampe. 

Dioicous ;  leaves  oblongo-lanceolate,  serrulate,  nerved  to  apex.  Caps. 
globose,  brown-purple.     (T.  XXVII,  D.) 

SYN.— Phascnm  coharens  HEDW.  Sp.  muse.  25,  t.  i,  f.  i— 6  (1801).  BRID.  Sp.  muse.  I,  4(1806), 
Mant.  6  (1819),  Bry.  univ.  i,  29  (1826).  SCHWAEG.  Suppl.  I,  P.  I,  p.  4  (1811).  LA  PYL. 
Journ.  hot.  1813,  p.  280,  t.  19,  f.  10.  BR.  SCHIMP.  Bry.  eur.  fasc.  i,  p.  6,  t.  i  (1837). 

Phase,  heterophyllum  DE  NOT.  Muse.  ital.  spic.  23  (1837)  5  Syllab.  313  (1838). 

Ephemerum  cohcercns  HAMPE  Flora  1837,  P-  285-  RABENH.  Deutsch  kr.  fl.  ii,  s.  3, 84  (1848). 
C.  MUELL.  Bot.  zeit.,  1847,  p.  101.  Synops.  1,32  (1849).  BR.  SCHIMP.  Bry.  eur.  fasc. 
42,  t.  i  (1849).  SCHIMP.  Synops.  5  (1860),  2  ed.  4  (1876).  DE  NOT.  Epil.  bri.  ital.  742 
(1869).  MILDE  Bry.  siles.  189  (1869).  JAEG.  Ber.  St.  Gall,  gesells.  1869,  p.  100. 
JURATZ.  Laubm.  oester.-ung.  5  (1882).  LESQ.  JAMES  Mosses  N.  Amer.  39  (1884). 

Dioicous  ;  resembling  E.  serratum,  protonema  paler,  less  dense, 
becoming  reddish-brown  by  age.  Lower  leaves  lanceolate,  upper  erect, 
oblongo-lanc.  denticulate  toward  apex  with  projecting  cells  ;  nerve  soft, 
vanishing  at  or  below  apex,  cells  at  base  hexagono-rectangular,  above 
hexagono -rhomboid.  Caps,  subglobose  with  a  short  point,  brown,  less 
solid  ;  spores  rough,  brown. 
HAB. — Moist  banks  ;  very  rare.  Fr.  n — 2. 

By  the  side  of  the  River  Shannon,  near  Portumna,  Galway  (Moore, 
1865) !  ! 

The  Irish  plant  quite  accords  with  the  American  in  its  erecto-patent 
leaves  with  slightly  recurved  points,  and  short  upper  cells,  but  the  specimens 
are  poor  and  stunted,  and  only  half  the  size  of  the  foreign  ones. 

5.  EPHEMERUM  STENOPHYLLUM  (Voit)  Schimp. 

Autoicous  ;  leaves  lane. -subulate,  nerve  thick,  excurrent.  Caps, 
small,  subspherical  with  a  short  point.  (T.  XXVII,  E.) 

SYN. — Phascnm  stenophylliim  VOIT  in  STURM  Deutsch.  fl.  II,  fasc.  14  (1813).  FUNCK  Moost.  2, 
t.  i  (1821).  NEES  HORNSCH.  Bry.  germ,  i,  39,  t.  4,  f.  2  (1823).  BRID.  Bry.  univ.  i, 
30(1826).  DE  NOT.  Syll.  muse.  312  (1838).  WILS.  in  Eng.  Bot.  t.  2829.  HUEBEN. 
Muse.  germ.  3  (1833). 

Phascum  sessile  BR.  SCHIMP.  Bry.  eur.  fasc.  i.  (1837).  SCHIMP.  in  Pollichia  ii,4g  (1844),  et 
in  Flora  1845.  WILS.  Bry.  brit.  27,  t.  37  (1855).  HOBK.  Syn.  br.  m.  27  (1873). 

Phascum  crassincrvium  (baud  SCHWAEG.)  BR.  SCH.  Bry.  eur.  fasc.  i,  p.  7,  t.  2  (1837). 

Ephemerum  crassinervium  HAMPE  in  Flora  1837,  P-  2&5-  C.  MUELL.  in  Bot.  Zeit.  1847, 
p.  101. 

Ephcm.  sessile  RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  85  (1848).     C.  MUELL.  Synops.  i,  33  (1849). 

BR.  SCH.  Bry.  eur.  fasc.  42,  p.  5,  t.  2  (1849).     BERK.  Handb.  br.  m.  304  (1863). 
Ephcm.  stenophylliim  SCHIMP.   Synops.  5  (1860),  2  ed.  6  (1876).      DE  NOT.   Epil.  bri.  ital. 

743  (1869).      MILDE  Bry.   siles.  189  (1869).     JAEG.  Ber.  St.  Gall,  gesells.  1869,  p.  101. 

JURATZ.  Laubm.  oester.-ung.  5  (1882).     LESQ.  JAMES  Mosses  n.  Amer.  39  (1884). 

Autoicous ;  rather  taller  than  E.  serratum,  with  green  protonema. 
Lower  leaves  minute,  lane,  nerveless,  upper  much  longer,  erect,  rather 
rigid,  lanceolate-subulate  ;  margin  more  or  less  serrulate  at  apex,  nerve 
pale  and  indistinct  at  base,  thence  stout,  deep  green  and  excurrent  ; 
cells  at  base  elongated  rectangular,  above  shorter,  narrower  and  more 
incrassate.  Caps,  subspherical  or  ovate  with  a  short  point,  rufescent ; 


TORTULACE.E.]  i86  [Ephemerum. 

calyp.  torn  at  base  into  shreds  ;  spores  large,  rough,  ferruginous.     Male 

infl.  gemmiform  basal. 

HAB. — Clay  or  chalky  soil  on  heaths  ;  rare.     Fr.   10 — 2. 

Henfield  common  and  Pondleigh  (Mitten  1846)  !  !     Mere,  Cheshire  (Wilson  1854)  !  ! 

Var  ft.  brevifolium  Schimp.  Syn.  2  ed.  p.  6. 

Leaves  shorter,  nearly  entire,  nerve  reaching  apex  or  vanishing. 

SYN. — Eph.  sessile  Var.  stenophyllum  Bry.  eur.  1.  c. 

Phase,  sessile  Var.  stenophyllum  WILS.  Bry.  brit. 

HAB.— Mere,  Cheshire  (Wilson)  \  \ 

Great  confusion  exists  in  the  works  of  early  authors  between  this  moss 
and  the  following,  so  that  it  is  scarcely  possible  to  disentangle  the  synonymy  ; 
a  reference  to  the  figures  will  show  that  in  R.  recuyvifolium,  the  leaves  are 
much  longer  and  linear  in  outline,  while  in  E.  stenophyllum,  they  taper 
gradually  upward  to  a  point. 

6.  EPHEMERUM  RECUR VIFOLIUM  (Dicks.)  Lindb. 
Dioicous ;    leaves   lineal   lane,  flexuose,    recurved,    denticulate   at 
apex,  nerve  excurrent ;  capsule  oval.     (T.  XXVII,  F.) 

SYN. — Phascum  recurvifoUnm  DICKS.  Crypt,  fasc   IV,  p.  i,  t.  10,  f.  2  (1801).      TURN.  Muse.  hib. 

2  (1804).     BRID.  Sp.  muse.  I,  4  (1806),  Bry.  univ.  i,  31,  p.p.  (1826).     SCHKUHR  Deutsch. 

kr.  Gew.  ii,  P.  II,    n,  t.  4  ?      NEES  HORNSCH.   Bry.   germ,  i,    42,  1.5,    £.4?  (1823). 

HUEBEN.  Muse.  germ.  9  (1833).      WILS.  Bry.  brit.  28,  t.  37  (1855).     HOBK.  Syn.  br.  m. 

27  (1873).     HUSN.  Mouss.  nord-ouest  33  (1873). 
Phascum  patens  Var.  SM.  Fl.  brit.  iii,  1150  (1804)  ?  HOOK.  TAY.  muse.  brit.  7  (1818)  ?  BRID. 

Bry.  un.  i,  34. 
Phase,  pachycarpum  SCHW^EG.  Suppl.  I,  P.  I,  6,  t.  2  (1811).      BR.  SCH.  Bry.  eur.  fasc.  i, 

Mon.  8,  t.  2  (1837). 

Phascum  Dicksoni  BRID.  Mant.  7  (1819). 
Phascum  crassinervium  NEES  HORNSCH.  Bry.  germ,  i,  40  p.p.  t.  4,  f.  3  (1823).     BRID.  Bry. 

univ.  i,  32  p.p.     GREV.  Scott,  cr.  fl.  vi,  t.  353  (1829).     HOOK.  Brit.  fl.  ii,  3  (1833).  WILS. 

in  Eng.  Bot.  t.  2932. 
Ephemerum  pachycarpum  HAMPE  in  Flora  xx.,  P.  I,  295  (1837)  ?    RABENH.  Deutsch.  kr.  fl. 

ii,  P.  3,  85  (1848).     SCHIMP.  Bry.  eur.  fasc.  42,  mon.  6,  t.  2  (1849),  Coroll.  3  (1855). 
Physed'mm  pachycarpum  C.  MUELL.  in  Bot.  Zeit.  1847,  P-  IO1- 
Ephemerclla  pachycarpa  C.  MUELL.  Synops.  i,  34  (1849). 
Ephemcrella  recurvifolia  SCHIMP.   Synops.  7  (1860),  2  ed.  9.      BERK.   Handb.  br.   m.  303 

(1863).     LINDB.  de  Tort.  215  (1864).     MILDE  Bry.  siles.  go  (1869).    JAEG.  Ber.  St.  Gall. 

gesells.  1869,  p.  73.     JURATZ.  Laubm.  oester.-ung.  5  (1882). 
Ephemerum'recurvifolium  LINDB.  Muse,  scand.  22  (1879). 

Dioicous  ;  with  dull  green,  much-branched  protonema.  Leaves 
erecto-patent,  flexuose,  curved,  spreading  backward  towards  apex, 
elongated,  lineal-lingulate,  eroso-denticulate  at  apex ;  nerve  strong, 
excurrent  in  an  apiculus  or  vanishing ;  cells  at  base  elongated  hexagono- 
rectangular,  hyaline,  above  denser,  rhombic,  chlorophyllose.  Caps,  on 
a  very  short  pedicel,  subglobose,  rostellate,  rufous  brown,  pachyder- 
mous ;  cal.  campanulate,  split  on  one  side  nearly  to  top,  vaginula 
oblong  ;  spores  granular,  fuscous.  Male  plant  gemmiform. 


TORTULACE.E.]  187  [Acaulon. 

HAB. — Fields  and  by  ditches,  rare.     Fr.  10 — 12. 

Near  Croydon  (Dickson)  \  Bedford  purlieus,  Wansford  (Berkeley  1827)  !  Hurstpier- 
point  (Mitten  1846) !  !  Near  Marsden,  Durham  (Bowman  1840) !  Ditchling,  Sussex 
(Dames  1869)  !  !  Buckingham  (Holmes  1876)  !  !  Wrotham,  Kent  (Holmes). 

The  calyptra  is  so  variable  in  the  different  species,  that  it  is  quite  insuffi- 
cient to  characterize  a  separate  genus  Ephemerella. 

2.     ACAULON  C.  MUELL. 

(Bot.  Zeit.  1847,  p.  99.) 

Plants  minute,  gemmiform,  gregarious.  Capsule  immersed,  globose, 
not  apiculate.  Calyptra  conic,  very  small,  resting  only  on  the  top  of 
caps,  torn  irregularly.  Columella  thick.  Spores  minutely  granulose. 
Leaves  tristichous,  upper  very  large,  concave,  connivent. — Der.  a  neg. 
KavXos  a  stem. 

CLAVIS  TO  THE  SPECIES. 

Perich.  bracts  convolute,  nerve  vanishing  at  point.  muticum. 

boat-shaped,  carinate,  nerve  excurrent.  triquetrum. 

i.  ACAULON   MUTICUM   (Schreb.)  C.  Muell. 

Autoicous  ;  bracts  broadly  oval,  concave,  subconvolute,  the  nerve 
vanishing  in  apex.  Caps,  erect  'on  a  straight  pedicel.  (T.  XXVII,  G.) 

SYN. — Phascum  acaulon  f$.  minus  L.  Sp.  pi.  1570  (1753).     HUDS.  Fl.  angl.  397   (1762).     WEISS 

Cr.  goett.  267  (1770).     EHRH.  Han.  mag.  1780,  p.  235. 

Phascum  muticum  SCHREB.  de  Phasco  obs.  8,  excl.  syn.  t.  i,  fgg.  11-14  I1??0)  >  Spic.  fl.  lips. 
73  (1771).  WEB.  Spic.  Fl.  goett.  126  (1778).  HEDW.  Fund.  muse.  II,  85  (1782),  Sp. 
muse.  23  (1801).  ROTH.  Fl.  germ,  i,  452  (1788).  TIMM  Fl.  meg.  n.  719  (1788).  JACQ. 
Collect,  ii,  215  (1788).  SWARTZ  Muse.  suec.  18  (1799).  HOFFM.  Deutsch.  Fl.  ii,  21 
(1795).  WITH.  Bot.  arr.  br.  Veg.  3  ed.  iii,  784  (1796).  HULL  Br.  fl.  P.  2,  251  (1799). 
BRID.  Muse.  rec.  II,  P.  I,  10  (1798),  Sp.  muse.  I,  i  (1806),  Mant.  4  (1819),  Bry.  univ.  i, 
22  (1826).  ROEHL.  Moosg.  deutsch.  15  (1800),  Deutsch.  fl.  iii,  32  (1813),  Ann.  wett. 
ges.  i,  187.  SM.  Fl.  br.  iii,  1156  (i8o»).  Eng.  bot.  t.  2027.  TURN.  muse.  hib.  3  (1804). 
P.  BEAUV.  Prodr.  82  (1805).  SCHULTZ  Fl.  starg.  271  (1806).  WEB.  MOHR  Bot.  Tasch. 
69(1807).  SCHKUHR  Deutsch.  kr.  gew.  P.  2,  10,  t.  4  (1810).  SCHWAEG.  Suppl.  I,  P.  I, 
2  (1811).  MART.  Fl.  cr.  erl.  125  (1817).  HOOK.  TAVL.  Muse.  br.  8,  t.  5  (1818).  FUNCK 
Moost.  2,  t.  i  (1821).  GRAY  Nat.  arr.  br.  pi.  i,  712  (1821).  HOOK.  Fl.  scot.  P.  II,  122 
(1821)  ;  Br.  flora  ii,  3  (1833).  NEES  HORNSCH.  Bry.  germ,  i,  46,  t.  5,  f.  6  (1823).  BR. 
SCHIMP.  Bry.  eur.  fasc.  i,  p.  8,  t.  2  (1837).  HUEBEN.  Muse.  germ.  8  (1833).  RABENH. 
Deutsch  kr.  fl.  ii,  s.  3,  81  (1848).  WILS.  Bry.  br.  29,  t.  5  (1855).  MACK.  Fl.  hib.  P.  2, 
8  (1836).  HOBK.  Syn.  br.  m.  27  (1873).  HusN.mouss.  nord-ouest.  34  (1873). 

Phase,  bulbosum  VOIT  Muse.  herb.  8  (1812).     DE  NOT.  Syll.  muse.  305  (1838). 

Ephemerum  muticum  HAMPE  in  Flora  xx,  P.  I,  285  (1837). 

Acaulon  muticum  C.  MUELL.   in  Bot.  zeit.  v,  99  (1847).      Syn.  muse,  i,  22   (1849).      BR. 

SCHIMP.  Bry.  eur.  fasc.  42,   Suppl.  mon.  3,  t.  i  (1849).      JAEG.  Ber.  St.  Gall.  ges.   1869, 

p.  75.     HUSN.  Mousses  n.  o.  2  ed.  57  (1882). 

Schistidium  muticum  MITT,  in  Ann.  mag.,  Nat.  Hist.  1851,  p.  311. 
Sphczrangium  muticum  SCHIMP.  Synops.  13   (1860).     BERK.  Handb.    br.  m.  302  (1863). 

LINDB.  de  Tort.  216  (1864).     MILDE  Bry.  siles.  91   (1869).     JURATZ.   Laubm.  oester.- 

ung.  88  (1882).     LESQ.  JAMES  Mosses  N.  Amer.  40  (1884). 

Autoicous  ;  dull  green  gregarious,  gemmiform,  oblong  conic, 
rounded-triangular.  Leaves  few,  broadly  ovate,  very  concave,  un- 
dulated ;  perich.  bracts  two,  much  larger,  subconvolute,  not  keeled, 
suddenly  narrowed  into  an  eroso-denticulate  point,  nerve  vanishing  at 


TORTULACE^E.]  188  [Acaulon. 

apex  or  slightly  excurrent,  margins  plane,  cells  at  base  large,  rhombo- 
hexagonal,  smaller  and  incrassate  above.  Calyptra  very  small, 
lacerate  at  base,  corrugated  by  drying.  Capsule  concealed  in  perich. 
on  a  straight  pedicel,  erect,  globose,  pachydermous,  orange-brown ; 
spores  yellow-brown,  tuberculate.  Male  infl.  gemmiform,  on  a  short 
basal  branch. 
HAB. — Sandy  clay  in  open  grassy  places;  not  uncommon.  Fr.  2 — 3. 

Var.  ft.  minus.  (Hook,  Tayl.} 

Plants   smaller  ;  bracts   more  shortly  pointed,  entire,  scarce  exceeding 
the  capsule,  which  is  smaller. 
SYN.— Phascum  globosum  SCHLEICH.  MSS. 

Phase,  muticum  ft.  minus  HOOK.  TAYL.  Muse.  br.  7.     BRID.  Bry.  un.  i,  23. 

Sphaerangium  muticum  ft.  minus.     SCHIMP.  Synops. 

Acaulon  minus  JAEG.     Op.  c.  78. 

HAB. — Sea  coast.     Torquay  (Hooker) !     Findon,  Sussex  (Davies  1869) !  ! 

From  its  short  duration  and  concealed  capsule  this  little  moss  is  doubt- 
less often  overlooked ;  not  unfrequently  it  has  a  rufous  brown  tinge.  Although 
Dillenius's  Sph.  acaulon  &c.  minus  is  represented  in  his  herbarium  by  a  small 
form  of  Phascum  acaulon,  there  is  little  doubt  but  the  early  authors  also 
included  the  present  plant. 

2.  ACAULON   TRIQTTETBUM   (Spruce)  C.  Muell. 

Autoicous  ;  bracts  broadly  oval,  trifarious,  carinate,  boat-shaped, 
connivent,  nerve  excurrent  in  a  recurved  apiculus.  Caps,  horizontal  on 
a  cygneous  pedicel.  (T.  XXVII,  H.) 

SYN. — Phascum  muticum  MOUG.  NESTL.     Stirp.  cr.  Vog.  rhen.  n.  802.     DRUMM.  Muse.  Amer. 

n.  8  p.p. 
Phascum  bulbosum  Var.  y.  minimum  DE  NOT.  Syllab.  306  (1838). 

Phase,  triquetrnm  SPRUCE  in  Eng.  bot.  suppl.  t.  2901  (1845),  et  in  HOOK.  Lond.  Journ.  bot. 

iv,  189  (1845).     RABEN.  Deutsch.  kr.   fl.  ii,  P.  3,  81  (1848).     WILS.  Bry.  brit.  29,  t.  37 

(1855).     DE  NOT.  Epil.  bri.  ital.  737  (1869).     HOBK.  Syn.  br.  m.  27  (1873). 
Acaulon   triquetrum  C.  MUELL.  in  Bot.  Zeit.  v,    100  (1847).     Synops.  i,  22  (1849).     BR. 

SCH.  Bry.  eur.  fasc.  42,  Mon.  suppl.  3,  t.  i  (1849).    JAEG.  Ber.  St.  Gall.  ges.  1869,  p.  76. 
Schistidium  triq.  MITT,  in  Ann.  mag.  Nat.  hist.  1851,  p.  311. 
SphcErangium  triq.  SCHIMP.  Synops.  14  (1860).     BERK.  Handb.  br.  m.  302  (1863).      MILDE 

Bry.  siles.  92  (1869).     LINDB.  de  Tort.  216  (1864).     JURATZ.  Laubm.  oester.-ung.  89 

(1882).     LESQ.  JAMES  Mosses  N.  Amer.  41  (1884). 

Autoicous;  pale  rufescent,  densely  gregarious,  bulbilliform,  trique- 
trous, often  with  a  little  fine  protonema.  Lower  leaves  very  small, 
nerveless ;  upper  obovate,  apiculate,  very  concave ;  perich.  bracts  three, 
very  large,  broadly  obovate,  acutely  carinate,  boat-shaped,  connivent, 
the  margin  recurved  and  eroso-denticulate  toward  apex,  nerve  excurrent 
in  a  recurved  apiculus,  cells  lax,  rectangular  at  base,  rhomboidal  at 
apex.  Calyptra  very  small,  dilated  and  irregularly  torn  at  base,  caps, 
on  a  cygneous  pedicel,  horizontal,  globose,  immersed,  rufous;  spores 


TORTULACE^.]  189  [Phascum. 

fuscescent.      Male   infl.  basal,  gemmiform,   bracts   obovate-lanceolate, 
nerveless. 

HAB. — Bare  places  among  short  grass  on  the  south  coast ;  rare.     Fr.  2 — 4. 
Cliff  between  Rottingdean  and  Newhaven  (Borrcr  1844) !  !  near  Brighton  (Mitten)  \  \ 


3.     PHASCUM  (L.)  SCHREB. 

(De  Phasco  Obs.  (1770)  .) 

Plants  very  small,  pottioid,  gregarious,  with  a  short  erect  stem. 
Leaves  nerved,  ovate  or  lanceolate,  entire,  comant,  the  cells  rhombo- 
hexagonal,  denser  above,  usually  papillose.  Calyptra  cucullate.  Cap- 
sule on  a  very  short  pedicel,  immersed  or  somewhat  exserted,  subglobose 
or  ovate,  obliquely  apiculate,  astomous,  pachydermous ;  columella 
perfect.  Der.  <£as*ov,  a  name  applied  by  Theophrastus  to  Usnea 
barbata. 

CLAVIS  TO  THE  SPECIES. 

Capsule  immersed. 

Plants  green,  leaves  oblong  connivent.  acaulon. 

Plants  brown,  leaves  ovate-acuminate  patent.  Floerkei. 

Capsule  exserted. 

Leaves  lanceolate  acuminate,  seta  arcuate.  curvicolle. 

i.  PHASCUM  ACAULON  L. 

Paroicous ;  stem  simple,  erect.  Leaves  ovate  and  elongato-lanceo- 
late,  cuspidate  with  the  excurrent  nerve.  Caps,  subglobose,  apiculate, 
brown.  (T.  XXVII,  I.) 

SYN. — Miiscus  trichoides  acanlos  minor  latifolius.  DOODY,  MERR.  Pinax  86  (1667).     RAY  Syn. 

stirp.  br.  2  ed.  app.  324  (1696). 
Sphagnum  acaulon  foliis  in  bulbl  formam  congestis  majus   DILL.  Cat.  Giss.  230  (1719),  et 

in  RAY  Synops.  3  ed.  105  (1724).     Hist.  muse.  251,  t.  32,  f.  n  (1741),  et  Herb. 
Sphag.  acaulon  foliis  in  bulbi  formam  congestis  minus  DILL.  Cat.  Giss.  1.  c.  et  in  RAY  Syn. 

1.  c.      Hist.  muse.  252,  t.  32,  f.  12,  et  Herb. 
Phascum  acaulon  L.  Sp.  plant,  ii,  1106  (1753).      HUDS.  Fl.  angl.  396  (1762).      WEISS  Cr. 

goett.  266  (1770).    WITH.  Bot.  arr.  br.  veg.  ii,  660  (1776).    LIGHTF.  Fl.  scot,  ii,  693  (1777). 

Fl.  Dan.  t.  249,  f.  3.      CURT.  Fl.  Lond.  t.  66  (1778).      RELH.  Fl.  cant.  395  (1785).     HULL 

Br.  fl.  P.  2,  251  (1799).      LINDB.  de  Tort.  217  (1864).      MITT.  Journ.  Lin.  Soc.  xii,  141 

(1869). 

Phascum  cuspldatum  SCHREB.  de  Phasco  8,  t.  1.  fgg.  i — 5  (1770),  Spic.  Fl.  lips,  73  (1771), 
WEB.  Fl.  goett.  125  (1778).  ROTH  Fl.  germ,  i,  452  (1788),  iii,  P.  I,  in.  SCHRANK 
Baiers.  fl.  ii,  432  (1789)  SIBTH.  Fl.  oxon.  273  (1794).  LAICH.  PI.  eur.  471  (1794). 
HOFFM.  Deutsch.  fl.  ii,  19  (1795).  BRID.  Muse.  rec.  II,  P.  I,  17  (1798),  Sp.  muse.  I,  8 
(1806),  Mant.  8  (1819),  Bry.  univ.  i,  41  (1826).  SWARTZ  Muse.  suec.  18  (1799).  ABBOT 
Fl.  bedf.  229  (1798).  ROEHL.  Moosg.  deutsch.  29  (1800),  Ann.  Wett.  ges.  i,  187  (1809), 
Deutsch.  fl.  iii,  33  (1813).  HEDVV.  Sp.  muse.  22  (1801).  SM.  Fl.  brit.  iii,  1155  (1804), 
Eng.  Bot.  t.  2025.  TURN.  Muse.  hib.  3  (1804).  P.  BEAUV.  Prodr.  82  (1805).  SCHULTZ 
Fl.  starg.  274  (1806).  WEB.  MOHR  Bot.  Tasch.  68  (1807).  SCHKUHR  Deutsch.  kr.  gew. 
P.  2,  8,  t.  3  (1810).  SCHWAEG.  Suppl.  I,  P.  I,  2  (i8n).  VOIT  Muse.  herb.  3  (1812). 
LA  PYL.  Journ.  Bot.  1813,  p.  273,  t.  19.  WAHLEN.  Fl.  carpat.  333  (1814),  Fl.  upsal.  392 
(1820).  MART.  Fl.  cr.  erl.  125  (1817).  HOOK.  TAYL.  Muse.  br.  8,  t.  5  (1818).  HARTM. 
Skand.  fl.  379  (1820).  HOOK.  Fl.  scot.  P.  2,  122  (1821),  Br.  fl.  ii,  4  (1833).  GRAY  Nat- 
arr.  br.  pi.  i,  712  (1821).  ZENK.  DIETR.  Muse,  thuring.  Fasc.  2,  n.  49  (1822).  NEES 
HORNSCH.  Bry.  germ,  i,  70,  t.  7.  f.  18  (1823).  HUEBEN.  Bry.  germ.  15  (1833).  MACK. 
Fl.  hibern.  P.  II,  8  (1836).  BR.  SCHIMP.  Bry.  eur.  Fasc.  i,  p.  10,  t.  4  (1837),  et  ^asc-  43 


ToRTULACEjE.]  IQO  [Phascum. 

(1850).     DE  NOT.  Syllab.  304  (1838),  Epil.  bri.  ital.  756  (1869).     FIEDL.   Syn.  Laubm. 

meckl.  39  (1844).      RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  82  (1848).     C.  MUELL.  Syn.  i,  25 

(1849).    WILS.  Bry.  brit.  31,1.  5  (1855).     SCHIMP.  Synops.  16  (1860).     BERK.  Handb.  br. 

m.  299  (1863).      MILDE  Bry.  siles.  93   (1869).      JAEG.   Ber.  St.  Gall.  ges.   1869,  p.  79. 

HOBK.  Syn.  br.  m.  28  (1873).      HUSN.  Mouss.  nord-ouest  34  (1872).      JURATX..   Laubm. 

oester.-ung.  15  (1882).      LESQ.  JAMES  Mosses  N.  Amer.  42  (1884). 
Bryum  bulbiformc  NECK.  Meth.  muse.  230  (1771). 
Phascum  acaulon  ft-  majus  EHRH.  Hann.  mag.  1780,  p.  235. 
Pottia  cuspidata  MITT.  Ann.  n.  h.  2.  ser.  viii,  311  (1851). 

Paroicous;  casspitose  and  gregarious,  deep  green.  Stem  i — 4  lines 
high,  erect,  simple  or  divided,  occasionally  flagelliferous.  Leaves 
crowded,  lowest  minute,  lanceolate,  upper  comant,  much  larger, 
oblongo-lanc.  nerve  more  or  less  excurrent  in  a  rufous  point,  margin 
quite  entire,  subrevolute  in  the  upper  half;  areolation  lax,  elongate 
rhombic  and  hyaline  at  base,  subquadrate  and  chlorophyllose  at  apex, 
minutely  papillose.  Caps,  usually  several  on  the  same  plant,  on  a  very 
short  straight  pedicel,  immersed,  or  on  a  curved  pedicel  emerging 
laterally,  globose,  apiculate,  rufo-castaneous ;  cal.  cucullate,  pale, 
reaching  middle  of  caps.  Spores  fuscous,  very  finely  granular.  Male 
in  axils  of  comal  leaves,  with  one  bract  and  few  antheridia. 
Hab. — On  clay  in  stubble  fields  and  banks  ;  common.  Fr.  i — 3. 

Var.  (3.  piliferum  (Schreb.). 

Smaller ;  leaves  crowded,  subconnivent,  rufescent,  the  nerve   excurrent 
in  a  long  filiform  point ;  caps,  large,  immersed. 

SYN.— Phascum  piliferum  SCHREB.  de  Phasco  8,  t.  i,  fgg.  6— 10.  DICKS.  Crypt,  fasc.  II,  i. 
TIMM.  Fl.  meg.  n.  717.  HOFFM.  ii,  19.  SWARTZ.  M.  suec.  17.  HULL  Br.  fl.  252.  ROTH 
Germ,  iii,  no.  HEDW.  Sp.  muse.  20.  SM.  Fl.  brit.  1151 ;  Eng.  Bot.  t.  1888.  BRIDEL, 
SCHULTZ,  WEB.  MOHR,  &c.  NEES  HORNSCH.  Bry.  germ.  65,  t.  6. 

Phas.  cuspidatum  /?.  piliferum  HOOK.  TAYL.  Muse.  br.  8. 
HAB. — Bare  sandy  ground,  especially  by  the  sea,  in  uniform  patches. 

Yarmouth  (Turner]  \    Cobham,  Kent  (Braithicaitc  1850)  !!    Penzance  (Curnow)  \  \    Crosby 
(Marratt  1860)  !    Middleton,  Sussex  (Davics  1864)  !    Blackhead,  Belfast  (Stewart  1884)  ! ! 

Var.  y.  Schreberi  (Dicks.)  End. 

Stem  tall,  repeatedly  divided  above ;  leaves   longer,  distant,  the   comal 
patent ;  capsule  emerging. 

SYN. — Phascum  Schreberianum  DICKS.  Crypt,  fasc.  IV,  2.      SM.  Fl.  br.  1155  ;  Eng.  Bot.  t.  2026. 

ROEHLINO. 
Phas.  cusp,  ft-   Schreberianum   BRID.   Sp.  muse.    I,  9;  Mant.  8;  Bry.  univ.   1,42.      NEES 

HORNSCH.  Bry.  germ,  i,  72,  t.  7,  f.  18. 
Phase,  affine  NEES  HORNSCH.  Bry.  germ.  74,  t.  7,  fig.  19. 
HAB.  — On  rich  damp  soil. 

Brighton  (Borrer)  ! !     Darlington  (Backhouse). 

Var.  o.  curvisetum  (Dicks.). 

Stem   tallish,  generally   divided ;  leaves   erecto-patent,   aristate  ;  caps, 
emerging  on  a  geniculate  pedicel. 
SYN.— Phascum  curvisetum  DICKS.  Crypt,  fasc.  IV,  2,  t.  10,  f.  4.     SM.  Fl.  br.  1154  ;  Eng.  Bot.  t. 

2259.     TURN.  Muse.  hib.     BRID.  Sp.  muse. 
Phase,  datum  BRID.  in  Schrad.  Journ.   1800,  II,  269  ;  Bry.  univ.   i,  45.      WEB.   MOHR  Bot. 

Tasch.  68.     SCHVVGN.  Suppl.  I,  P.  I,  8,  t.  i.     NEES  HSCH.  Bry.  germ,  i,  75,  t.  7,  f.  20. 
Phas.  cusp.  y.  curvisetum  NEES  HSCH.  Bry.  germ.  1,72,  t.  7,  f.  18**.   BRID.  Bry.  univ.  i,  42. 


TORTULACE.E.]  igi  [Phascum. 

HAB. — On  heaths,  not  common. 

Croydon  (Dickson).  Bedford  (Abbot).   Henfield  (Da-vies  1868)!!  Coleshill  Heath  (Bagnall). 
This  common  moss  varies  much  in  size,  so  that  numerous  forms  are  met 
with.     The  greatest  deviation  from  its  ordinary  aspect  is  when  it  throws  out 
several  innovations  and  becomes  branched  from  the  base. 

2.  PHASCUM  FLOERKEI    Web.  Mohr. 

Paroicous ;  leaves  ovate,  gradually  acuminate,  patulous,  margin 
revolute,  entire,  nerve  thick  excurrent.  Caps,  rostellate.  (T.  XXVII,  K.) 

SYN. — Phascum  Floerkcanum  WEB.  MOHR  Bot.  Tasch.  70  &  451  (1807).  SCHKUHR  Deutsch. 
kr.  gew.  P.  2,  5,  t.  2  (1810).  SCHWAEGR.  Suppl.  I,  P.  I,  3,  t.  3  (1811).  ROEHL.  Deutsch. 
fl.  iii,  32  (1813).  BRID.  Mant.  5  (1819);  Bry.  univ.  i,  26  (1826).  FUNCK  Moost.  2,  t.  i 
(1821).  NEES  HORNSCH.  Bry.  germ,  i,  52,  t.  5,  f.  10  (1823).  HUEBEN.  Muse.  germ,  n 
(1833).  BR-  SCHIMP.  Bry.  eur.  fasc.  i,  p.  8,  t.  3  (1837).  DE  NoT-  Syllab.  303  (1838), 
Epil.  bri.  it.  736  (1869).  WILS.  Eng.  Bot.  t.  2887  (1844),  Bry.  brit.  30,  t.  37  (1855). 
RABENH.  Deutsch.  kr.  fl.  ii,  s.  3,  80  (1848).  HOBK.  Syn.  br.  m.  28  (1873).  HUSN.  Mouss. 
nord-ouest.  33  (1873). 

Phase,  minutum  ROEHL.  Ann.  wetter,  ges.  i,  185  (1809). 

Acaulon  Flocrkeanum  C.  MUELL,  in  Bot.  Zeit.  v,  99  (1847)  '•>  Synops.  i,  21  (1848).  BRUCH 
SCHIMP.  Bry.  eur.  fasc.  42,  t.  2  (1849). 

Schistidium  Floerk.  MITT,  in  Ann.  nat.  hist.  2  ser.  viii,  311  (1851). 

MicrobryumFloerk.  SCHIMP.  Synops.  n  (1860).  LINDB.  de  Tort.  216  (1864).  JAEG.  Ber. 
St.  Gall.  ges.  1869,  p.  74.  JURATZ.  Laubm.  oester.-ung.  87  (1882).  LESQ.  JAMES  Mosses 
N.  Amer.  45  (1884). 

Paroicous;  minute,  scattered,  gemmaceous,  rufescent.  Leaves  erecto- 
patent,  lower  very  small  ovate  nerveless,  upper  ovato-acuminate,  con- 
cave, somewhat  recurved  at  points,  minutely  papillose  at  back  towards 
apex,  cuspidate  with  the  stout,  reddish,  excurrent  nerve ;  margins 
slightly  reflexed  above,  entire  or  subcrenulate  towards  point ;  basal 
cells  hexagono-rectangular  lax  pellucid,  upper  rhombic  incrassate. 
Caps,  reddish-brown,  immersed,  globose-ovate,  pachydermous,  with  a 
thick  obtuse  point ;  cal.  somewhat  conical,  rarely  cleft  at  side,  dilated 
and  torn  at  base ;  spores  pale.  Antheridia  naked  in  axils  of  upper 
leaves,  occasionally  in  distinct  plants  on  the  same  protonema,  bracts 
acuminate,  ovate  nerveless. 

HAB. — Clay  fields  ;  not  common.     Fr.  n — 2. 

Durham  coast  between  Sunderland  and  S.  Shields  (Bowman  1840)  !  !  Ravensworth 
castle,  by  the  Team  (Thornhill)  !  Sussex,  Newtimber  (Borrer  1845)  !  Hurstpierpoint 
and  Woolsonbury  hill  (Mitten  1845)  !  !  Aldrington  (Davies  1850)  !  !  Castle  Howard 
(Spruce).  Conway  (Wilson  1861)  !  !  Llansaintfraid  (Wilson  1864).  Wolvercott, 
Oxford  (Bosivcll  1867)  !  ! 

Var.  p.  badium  (Voit)  Brid. 

Leaves  longer,  narrower,  brownish  ;  caps,  smaller  ovate,  badious. 

SYN. — Phascum  badium  VOIT  Muse.  herb.  7  (1812).  NEES  HORNSCH.  Bry.  germ,  i,  53,  t.  5,  f. 
ii.  BRID.  Bry.  univ.  i,  27.  HUEBEN.  1.  c.  JAEG.  op.  c.  75. 

Phase.  Floerkeanitm  R,  badium  BRID.  Mant.  5. 
HAB. — Occasionally  found  with  the  typical  form. 

Bulmer  near  York  (Spruce  1844).     Hurstpierpoint  (Mitten)  \  \ 


TORTULACE.E.J  192  [Pottia. 

3.  PHASCUM  CURVICOLLE  Ehrh. 

Paroicous  ;  leaves  crowded,  ovato-lanceolate,  denticulate  and  pale 
at  tip.  Caps,  ovate,  acuminate,  purple,  cernuous  on  an  arcuate  pedicel. 
(T.  XXVIII,  A.) 

SYN.— Phascum  ciirvicollum  EHRH.  MSS.  et  Beitr.  iv,  44  (1789).  HEDW.  St.  crypt,  i,  31,  t.  n 
(1787)  ;  Sp.  muse.  21  (1801).  ROTH  Fl.  germ,  i,  452  (1788),  iii,  P.  I,  114.  DICKS.  Crypt, 
fasc.  II,  i  (1790).  SCHRAD.  Fl.  germ.  58  (1794)-  RELH.  Fl.  Cant.  Suppl.  3,  p.  8  (1795)- 
WITH.  Bot.  arr.  br.  veg.  3  ed.  iii,  786  (1796).  HOFFM.  Deutsch.  Fl.  ii,  26  (1795). 
ABBOT  Fl.  bedf.  230  (1798).  BRID.  Muse.  rec.  II,  P.  I,  11  (1798)  ;  Sp.  Muse.  I,  2  (1806) ; 
Mant.  5  (1819) ;  Bry.  univ.  i.  24  (1826).  HULL  Br.  fl.  P.  2,  251  (1799).  ROEHL.  Moosg. 
deutsch.  17  (1800)  ;  Ann.  Wett.  ges.  i,  187  (1809)  ;  Deutsch.  fl.  iii,  33  (1813).  SM.  Eng. 
Bot.  t.  905  (1801)  ;  Fl.  brlt.  1153(1804).  P.  tfEAUV.  Prodr.  82  (1805).  WEB.  MOHR 
Bot.  Tasch.  65,  t.  6,  f.  i  (1807).  SCHKUHR  Deutsch.  kr.  gew.  P.  2,  4,  t.  i  (1810). 
SCHWAEG.  Suppl.  I,  P.  I,  7  (1811).  VOIT  Muse.  herb.  6  (1812).  LA  PYL.  Journ.  Bot. 


1813,  279,  t.  19,  f.  9.  HOOK.  TAYL.  Muse.  brit.  9,  t.  5  (1818).  FUNCK  Moost.  2,  t.  i 
(1821).  GRAY  Nat.  arr.  br.  pi.  i,  712  (1821).  NEES  HORNSCH.  Bry.  germ,  i,  55,  t.  5,  f. 
12  (1823).  HARTM.  Skand.  fl.  380.  HUEBEN.  Muse.  germ.  13  (1833).  HOOK.  Br.  fl.  ii, 


4  (1833).  MACK.  Fl.  hib.  P.  2,  8  (1836).  BR.  SCHIMP.  Bry.  eur.  fasc.  i,  p.  n,  t.  4  (1837)  > 
et  f.  43,  t.  2.  DE  NOT.  Syll.  302  (1838),  Epil.  735  (1869).  C.  MUELL.  Synops.  i,  27 
(1849).  RABENH.  Deutsch.  kr.  fl.  ii,  P.  3,  83  (1848).  WILS.  Bry.  br.  30,  t.  5  (1855). 
SCHIMP  Synops.  19  (1860).  LINDB.  de  Tort.  217  (1864).  JAEG.  Ber.  St.  Gall.  nat. 
ges.  1869,  p.  82.  MILDE  Bry.  siles.  93  (1869).  HOBK.  Syn.  br.  m.  28  (1873).  HUSN. 
Mouss.  nord-ouest.  35  (1873).  JURATZ.  Laubm.  oester.-ung.  90  (1882). 

Phase,  cernuum  GMEL.  in  L.  Syst.  nat.  13  ed.  ii,  P.  II,  1323  (1791). 

Pottia  curvicollis  MITT,  in  Ann.  Mag.  Nat.  hist.  1851,  p.  311. 

Cycnea  curvicolla  BERK.  Handb.  br.  m.  301  (1863). 

Paroicous  and  synoicous ;  short,  slender,  gregarious  or  subcaes- 
pitant,  rufescent.  Leaves  crowded,  erecto-patent,  subimbricated, 
ferruginous  green,  pale  at  apex,  lower  ovate  acuminate,  upper  elongato- 
lanceolate,  cuspidate  with  the  solid  rufous  excurrent  nerve,  margin 
entire,  subreflexed,  upper  cells  small  hexagonal,  chlorophyllose, 
papillose.  Caps,  solitary  or  several  in  one  perich.  rufous-purple,  oval 
with  a  short  apiculus,  on  a  pale  cygneous  pedicel  emerging  laterally 
from  the  perich.  leptodermous  subpendulous ;  cal.  pale,  reaching  below 
middle  of  caps.,  spores  pale  yellow,  faintly  papillose. 

HAB. — Moist  banks  and  fields  ;  not  common.     Fr.  2 — 4. 

Croydon  (Dickson).  Clapham,  Beds.  (Abbot).  Audley  End,  Essex  (Rev.  J.  Leefe  1823)  ! 
Newhaven  (Borrer) !  Burling  gap  and  Goodwood  racecourse  (Jenner  1835) !  Rottingdean 
(Davies) !  !  Hurstpierpoint  (Mitten) !  Todmorden  (Nowell)  \  \  Pontefract  and  Castle- 
ford  (Dr.  Wood)  \  Colwyn  (Palgrave  1862)  !  Dublin.  Ilsington,  and  Catdown,  Devon 
(Holmes). 

4.     POTTIA  EHRH. 

(Beitraege  i,  175  (1787)  .) 

Plants  simple  or  divided  from  the  base,  csespitose  or  pulvinate. 
Leaves  broad,  enlarging  upward,  oblong  acuminate,  soft,  opake,  usually 
papillose ;  areolation  lax,  rectangular  and  hyaline  at  base,  quadrate- 
hexagonal  and  chlorophyllose  above.  Calyptra  cucullate.  Caps,  erect, 
turbinate  or  subcylindric,  in  a  few  remaining  closed,  or  gymnostomous, 


TORTULACE^E.]  1Q3  [Pottid. 

or  with  a  peristome  of  16  teeth,  rudimentary  or  imperfect,  or  flat  lanceo- 
late and  united  at  base  by  a  narrow  membrane,  bipartite,  of  a  double 
lamina,  solid  and  papillose.  Spores  granulose.  Inhabiting  the  ground 
and  crevices  of  rocks. — Der.  after  Prof.  Pott  of  Brunswick. 

This  genus  is  by  Mitten  and  Lindberg  regarded  as  a  section  of  Tortula, 
and  the  foliage  will  be  seen  to  approach  very  closely  that  of  Desmatodon,  e.g., 
Tort,  muralis. 

It  is  perhaps  better  to  keep  it  separate  as  it  possesses  a  certain  natural 
habit,  and  a  considerable  number  of  species — nearly  40 — which  have  many 
points  in  common,  and  when  a  peristome  is  present,  it  does  not  run  out  into 
cilia  as  in  Tortula ;  the  male  inn1,  must  be  observed  early  in  the  season,  as  it 
is  often  caducous  before  the  maturity  of  the  fruit.  I  attach  considerable 
importance  to  the  smoothness  or  scabrosity  of  the  calyptra,  as  it  affords  a 
valuable  character  to  discriminate  species,  otherwise  very  closely  allied. 

CLAVIS  TO  THE  SPECIES. 
Lid  minute,  persistent. 

Capsule  globose.  recta. 

Capsule  elliptic,  acuminate  bryoides. 

Lid  distinct,  deciduous. 
Leaves  quinquefarious. 
Nerve  not  excurrent. 

Leaves  divergent  serrulate  towards  apex.  Heimii. 

Leaves  imbricated,  entire.  latifolia. 

Nerve  excurrent. 

Calyptra  smooth. 

Leaves  with  upper  cells  smooth. 

Capsule  turbinate.  trwicatula. 

Capsule  oval-cylindric.  littoralis. 

Leaves  with  upper  cells  papillose. 

Upper  cells  larger,  peristome  none.  intermedia. 

Upper  cells  smaller,  peristome  present. 

Nerve  excurrent  in  a  long  point.  lanceolata. 

Nerve  forming  a  short  mucro.  ccespitosa. 

Calyptra  scabrous. 

Lid  conic  obtuse.  Starkei. 

Lid  rostrate.  asperula. 

Leaves  octofarious. 

Calyptra  smooth. 

Nerve  excurrent  in  a  short  point.  viridifolia. 

Nerve  excurrent  in  a  long  point.  crinita. 

Calyptra  scabrous.  Wilsoni. 

i.  POTTIA  RECTA  (With.)  Mitt. 

Paroicous  ;  leaves  broader,  oblongo-lanceolate,  papillose  at  back. 
Capsule  subglobose,  exserted  on  an  erect  pedicel ;  lid  distinct,  persistent  ; 
cal.  rough  at  point.  (T.  XXVIII,  B.). 

SYN. — Phascum  curvicollum  SM.  Eng.  Bot.  t.  330  (1796). 

Phascum  rectum  WITH.  Bot.  arr.  Br.  veg.  3  ed.  Hi,  787,  t.  18,  f.  i  (1796).  HULL  Br.  Fl.  P 
2,  252  (1799).  SM.  Eng.  Bot.  sub  t.  905  (1801) ;  Fl.  brit.  1153  (1804).  TURN.  Muse. 
hib.  4  (1804).  BRID.  Sp.  muse.  I,  2  (1806) ;  Mant.  6  (1819)  ;  Bry.  univ.  i.  25  (1826). 
SCHWAEG.  Suppl.  I,  P.  I,  ii  (1811).  LAPYL.  Journ.  Bot.  1813,  p.  279.  HOOK.  TAYL. 
Muse.  br.  9,  t.  5  (1818).  GRAY  Nat.  arr.  br.  pi.  i,  712  (1821).  HOOK.  Br.  fl.  ii,  4  (1833). 
HUEBEN.  Muse.  germ.  12  (1833).  BR.  SCHIMP.  Bry.  eur.  fasc.  I,  p.  ii,  t.  5  (1837)  et 
fasc.  43,  t.  2.  DE  NOT.  Syll.  302  (1838)  ;  Epil.  bri.  ital.  734  (1869).  RABENH.  Deutsch. 
kr.  fl.  ii,  S.  3,  83  (1848).  C.  MUELL.  Synops.  i,  27  (1849).  WILS.  Bry.  br.  31,  t.  5 
(1855).  SCHIMP.  Synops.  20  (1860).  JAEG.  Ber.  der  St.  Gall.  nat.  ges.  1869,  p  82 
HOBK  Syn.  br.  m.  28  (1873).  HUSN.  Mouss.  nord-ouest.  35  (1873).  JURATS.  Laubm.' 
oester.-ung.  91  (1882). 


TORTULACE^.]  194  [Pottia. 

Pottia  recta  MITT.  Ann.  nat.  hist.  2  ser.  viii,  311  (1851).     LINDB.  in  Oefv.  vet   ak.  ioerh,  xx, 

410  (1863) ;  de  Tort.  218  (1864). 
Bryella  recta  BERK.  Handb.  br.  m.  300  (1863). 
Tortnla  recta  LINDB.  Muse,  scand.  21  (1879). 

Paroicous  ;  plants  very  dwarf,  densely  gregarious,  dull  green  or  rufes- 
cent.  Leaves  crowded,  erecto-patent,  papillose  above,  oblongo- 
lanceolate,  concave,  the  margins  revolute,  nerve  excurrent ;  cells  at 
base  narrowly  rectangular,  above  hexagonal.  Caps,  erect,  subglobose, 
apiculate,  nitidulous,  reddish-orange,  often  2 — 3  in  one  perichsetium, 
the  lid  minute,  with  a  simple  annulus,  not  separating ;  cal.  yellow-brown, 
the  beak  rough  with  minute  papillae,  black  at  apex ;  spores  pale,  rough. 

HAB. Fields  on    clay  and   calcareous   soil,  and   banks   by  roadsides  ;  not 

common.     Fr.  2 — 3. 

Sussex  and  Kent,  frequent.  Plymouth  (Holmes  1867) !  !  Llangollen  (Kent  1865)  !  !  Be*u- 
maris  (Hunt)  \  \  Manchester  and  Pontefract  (Hunt  1867) !  !  Levens  (Barnes  1869)  !  ! 
Todmorden.  Dublin  (Moore).  Near  York  (Spruce). 

2.  POTTIA  BRYOIDES  (Dicks.)  Mitt. 

Autoicous;  leaves  patent,  accrescent  upward,  oblongo-lanceo- 
late,  reflexed  at  margin,  aristate  with  the  excurrent  nerve.  Caps, 
elliptic-ovate,  subobliquely  rostrate;  lid  persistent;  cal.  smooth. 
(T.  XXVIII,  C.) 

SYN. — Phascum  bryoides  DICKS.  Crypt,  fasc.  IV,  3,  t.  10,  f.  3  (1801).  SM.  Fl.  brit.  iii,  1154 
(1804)  ;  Eng.  Bot.  t.  1280.  WEB.  MOHR  Bot.  Tasch.  65  (1807).  ROEHL.  Ann.  Wett. 
ges.  i,  193  (1809)  ;  Deutsch  fl.  iii,  34  (1813).  SCHKUHR  Deutsch  kr.  gew.  P.  2,  6,  t.  2 
(1810).  SCHWAEG.  Suppl.  I,  P.  I,  8,  t.  2  (1811).  VOIT  Muse.  herb,  i  (1812).  HOOK. 
TAYL.  muse.  br.  8,  t.  5  (1818).  SCHULTZ  Suppl.  Fl.  Starg.  63  (1819).  FUNCK  Moost.  3, 
t.  i  (1821).  GRAY  Nat.  arr.  br.  pi.  i,  712  (1821).  NEES  HORNSCH.  Bry.  germ,  i,  76,  t.  7, 


f.  21  (1823).     HUEBEN.  Muse.  germ.  17  (1833).     HOOK.  Br.  fl.  ii,4  (1833).    BR-  SCHIMP. 

ir.  fasc.  i,  p.  n,  t.  5  (1837) ;  et  fasc.  43,  t.  2.     E 
bri.  ital.  734  (1869).      RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  83   (1848).     C.   MUELL.   Sync 


Bry.  eur.  fasc.  i,  p.  n,  t.  5  (1837) ;  et  fasc.  43,  t.  2.     DE  NOT.  Syllab.  301  (1838)  ;  Epil. 


i,  28  (1849).  WILS.  Bry.  brit.  33,  t.  5  (1855).  SCHIMP.  Synops.  18  (1860).  BERK.  Handb. 

br.  m.  300,  t.  24,  fig.  8  (1863).      JAEG.  Ber.  der  St.  Gall.  nat.  ges.  1869,  p.  80.      HOBK. 

Syn.  br.  m.  29  (1873).     HUSN.  Mouss.   nord-ouest.  34  (1873).     JURATZ.  Laubm.  oester.- 

ung.  90  (1882).     LESQ.  JAMES  Mosses  N.  Amer.  42  (1884). 
Phascum  gymnostomoides   BRID.  Sp.  muse.  I,  7  (1806)  ;  Mant.  7  (1819)  ;  Bry.  univ.  i,  48 

(1826). 

Phase,  graniferum  WAHL.  In  Vet.  akad.  nya  handl.  xxvii,  131,  t.  4,  f.  3  (1806). 
Phase,  elongatum  SCHULTZ  Fl,  starg.  273  (1806). 
Phase,  pusillum  SCHLEICH. 
Pottia  bryoides  MITT.  Ann.  nat.  hist.  2  ser.  viii,  311  (1851).     LINDB.  in  Oefv.  vet.  ak.  foer. 

handl.  xx,  409  (1863)  ;  de  Tort.  221  (1864).     MILDE  Bry.  siles.  98  (1869). 

Tortula  bryoides  LINDB.  Muse,  scand.  21  (1879). 

Autoicous  ;  gregarious,  csespitulose,  olivaceous  green,  \ — £  in.  high, 
simple  or  sparingly  branched.  Lower  leaves  very  small,  patent,  remote, 
ovato-lanc.  upper  crowded  in  an  erect  coma,  much  larger,  ovate  and 
oblongo-lanc.  cuspidate  with  the  solid  excurrent  nerve,  concave,  reflexed 
at  margin  ;  areolat.  at  base  oblongo-hexag.  hyaline,  at  apex  rounded- 
hexag.  chlorophyllose.  Caps,  on  a  straight  reddish  seta,  sometimes 


TORTULACE.E.]  195  [Pottia. 

only  just  emerging  from  the  leaves,  ovate  or  ovato-elliptic,  attenuated  in 
an  oblique  rostellum,  fuscous ;  cal.  cucullate,  reaching  to  middle  of 
caps,  lid  conical  paler  not  separating;  spores  fuscous,  nearly  smooth. 

Male  infl.  gemmiform,  in  axils  of  upper  leaves,  bracts  broadly  ovate, 
acuminate,  outer  with  an  excurrent  nerve,  vanishing  in  the  inner  ones. 

HAB. — Fallow  fields  and  banks  ;  rare.    Fr.  i — 3. 

Near  Croydon  (Dickson).  Downs  at  Piecombe,  Lewes  and  Devil's  Dyke  (Borrer).  Coast 
at  Aldrington  and  Cliff  E.  of  Brighton  (Mitten).  Gateshead  Fell  (Thornhill).  Map- 
perley  hills,  Darlington  (Backhouse).  Ganthorpe,  Yorks.  (Spruce  1841).  Bury  St. 
Edmunds  (Eagle).  Norwich  !  Nottingham  (Valentine).  Buxton  (Dr.  Wood  1865)  ! 
Iffley,  Oxford  (Bosit'dl  1861)  !  !  Woolsonbury  hill  (Davies  1867) !  !  Dovedale  (Frascr 
1866)  !  !  Elie,  Fife  (Howie  1867)  !  Whitbarrow,  Lyth  and  Levens  Park  (Barnes 
1872)  !  !  Arnside  Towers,  on  old  ant  hills  (Barnes  1872)  !  Howth  (Orr). 

Var.  (3.  Thornliillii(PW/s.). 

Leaves   patulous,   spathulato-lanceolate,    subreflexed,    margins     plane, 
nerve  subexcurrent ;  caps,  elliptic,  rostrate,  pedicel  elongated. 
SYN. — Phascum  bryoides  var.  Thornhillii  WILS.  Bry.  brit.  33. 
HAB.— Old  stubble  fields  near  Newcastle  (Thornhill  1841) ! 

Pottia  bryoides  has  a  peculiar  looking  capsule,  much  resembling  that  of 
Voitia  hyperborea,  but  with  a  distinct  persistent  lid.  Several  varieties  are 
enumerated  which  appear  to  me  to  be  forms  passing  into  each  other,  thus  Mr. 
Davies'  specimens  are  midway  between  the  ordinary  state  and  Var.  piliferum, 
but  the  Var.  Thornhillii  is  very  different  and  Mr.  Wilson  suggests  may  be  a 
distinct  species. 

3.  POTTIA  HEIMII  (Hedw.)  Fuernr. 

Autoicous  ;  taller ;  leaves  ovate  oblong,  acuminate,  serrate  at 
apex,  laxly  areolate,  nerve  vanishing  or  continuous  ;  caps,  truncate 
obovate,  lid  obliquely  rostrate,  systylious.  (T.  XXVIII,  D.) 

SYN. — Gymnostoinum  Heimii  HEDW.  Stirp.  cr.  i,  80,  t.  30  (1787)  ;  Sp.  muse.  32  (1801).  ROTH 
Fl.  germ,  i,  653  (1788),  et  iii,  P.  I,  123.  HOFFM.  Deutsch.  fl.  ii,  28  (1795).  BRID. 
Muse.  rec.  II,  P.  I,  41  (1798),  Sp.  muse.  I,  32  (1806),  Mant.  15  (1819)  ;  Bry.  univ.  i,  71 
(1826'.  ROEHL.  Moosg.  deutsch.  77  (1800)  ;  Deutsch.  fl.  iii,  39.  SM.  Fl.  br.  iii,  1162 
(1804)  ;  Eng.  Bot.  t.  1951.  TURN.  Muse.  hib.  9  (1804).  P.  BEAUV.  Prodr.  59  (1805). 
WEB.  MOHR  Bot.  Tasch.  87  (1807).  SCHKUHR  Deutsch.  kr.  gew.  P.  2,  p.  24,  t.  n 
(1810).  SCHWAEG.  Suppl.  I,  P.  I,  21  (i8n).  HOOK.  TAYL.  Muse.  br.  12,  t.  7  (1818). 
FUNK  Moost.  6,  t.  4  (1821).  GRAY  Nat.  arr.  br.  pi.  i,  715  (1851).  HOOK.  Fl.  Scot.  P. 
II,  123  (1821),  Br.  fl.  ii,  9  (1833).  HUEBEN.  Muse.  germ.  42  (1833).  MACK.  Fl.  hib.  P. 

2,   10  (1836). 

Bry um  Heimii  DICKS.  Crypt,  fasc.  II,  4  (1790).     GMEL.  Syst.  Nat.  ii,  1333  (1791).    LAICH. 

PI.  eur.  482  (1794).     WITH.  Bot.  arr.  br.  veg.  3  ed.  iii,  815  (1796).      HULL.  Br.  fl.  P.  2, 

257  (!799)- 
Gymnast,  obtusiim   (baud   HEDW.)  TURN.  op.  c.  9,  (excl.  syn.)  t.  i,  fig.  g-i.  Eng.  Bot.  t. 

1407.     BRID.  Bry.  un.  i,  72. 

Gymnast,  sy  sty  Hum  FUNK  MSS. 

Gymnast,  affine  NEES  HORNSCH.  Bry.  germ,  i,  140,  t.  9,  f.  9  (1823).      BRID.  Bry.  un.  i,  72. 

WAHLENB.  Fl.  suec.  772.     HUEBEN.  Muse.  germ.  41. 
Pottia  Heimii  FUERNR.  in  Flora  xii,  P.  II,  Erganz.  10  (1829).      BRUCH   SCHIMP.  Bry.  eur. 

fasc.  18 — 20,  p.  12,  t.  7  (1843).     RABENH.  Deutsch.  kr.  fl.  ii,  s.  3,  97  (1848).     C.  MUELL. 

Synops.  i,  551  (1849).     WILS.  Bry.  brit.  96,  t.  7  (1855).      SCHIMP.   Synops.  125   (1860), 

2  ed.  155  (1876).      BERK.  Handb.  br.  m.  271,  t.  23,  f.  3  (1863).      MILDE   Bry.  siles.  97 


TORTULACE^.]  196  [Pottia. 


(1869).      DE  NOT.  Epil.  Bri.  it.  587.     LINDB.  de  Tort.  221  (1864).      MITT.  Journ.  Bot. 

1871,  p.  4.  HUSN.  Mousses  nord-ouest.  65  (1873).  HOBK.  Syn.br.  m.  57  (1873).  JURATZ. 

Laubm.  oester.-ung.  94  (1882).     LESQ.  JAMES  Mosses  N.  Amer.  102  (1884). 
Pottia  affinis  FUERNR.  1.  c. 
Tortula  Heimii  MITT.  Journ.  Lin.  Soc.  Bot.  xii,  165  (1869).  LINDB.  Muse,  scand.  21  (1879). 

Autoicous  and  synoicous ;  caespitose,  pale  yellow-green,  more  or 
less  branched.  Lower  leaves  remote,  broadly  lanceolate,  upper  larger 
crowded,  concave,  broadly  elongato-lanc.  acuminate,  acute,  serrate  at 
apex ;  nerve  reddish,  vanishing  in  the  point  or  slightly  excurrent ; 
margin  plane,  cells  lax,  thin  pellucid  and  elongated  at  base,  upper 
hexagonal,  minutely  papillose,  marginal  usually  smooth ;  perich. 
bracts  larger  and  more  acuminated.  Caps,  on  a  tall  red  seta,  erect, 
obovate  and  oblong,  pachydermous,  pale  olive  brown,  finally  ferruginous 
and  truncate ;  cal.  smooth,  pale  brown,  with  a  black  point ;  lid  from  a 
plano-convex  base,  longly  and  obliquely  rostrate,  when  ripe  raised  on 
the  attached  columella ;  peristome  none.  Male  on  a  short  lateral 
branch,  bracts  three,  resembling  the  leaves,  rarely  synoicous. 

HAB. — Moist  gravelly  banks  by  the  sea  and  mouths  of  rivers  ;  not  uncommon. 
Fr.  4-5. 

Variable  in  size,  in  the  length  of  the  seta,  capsule  and  lid,  the  serration 
also  sometimes  becomes  obsolete,  and  the  nerve  may  vanish  below  the  point, 
at  the  point,  or  form  an  excurrent  mucro ;  it  is  therefore  difficult  to 
define  any  distinct  varieties. 

4.  POTTIA  TRUNCATULA  (L.)    Lindb. 

Autoicous ;  laxly  csespitose.  Leaves  obovate-oblong,  acuminate, 
mucronate  with  the  excurrent  nerve ;  cells  above  hexagonal,  chloro- 
phyllose,  smooth.  Caps,  obovate-spherical,  deoperculate  subhemi- 
spherical ;  lid  rostrate,  cal.  smooth.  (T.  XXVIII,  E.) 

SYN. — Bryum  truncatnlum   L.  Sp.  pi.  1119  (1753).      HUDS.  Fl.  angl.  408(1762).      WEISS  Cr. 

goett.  191  (1770).    NECK.  Meth.  muse.  95  (1771).    WITH.  Bot.  arr.  br.  veg.  ii,  675  (1776). 

LIGHTF.  Fl.  scot,  ii,  730  (1777).      WEB.  Spic.  fl.  goett.  109  (1778).      CURTIS  Fl.  Lond. 

F.  II,  t.  71  (1778).     Fl.  Dan.  t.  537.      RELH.  Fl.  cant.  405  (1785).     ABBOT  Fl.  bedf.  242 

(1798).     HULL  Br.  fl.  P.  2,  258  (1799). 
Phascum  truncatulum  SWARTZ  Meth.  muse.  25  (1781). 
Gymnostomum  truncatulum  HEDW.  Fundam.  ii,  87  (1782).      TIMM  Fl.  meg.  n.  726  (1788). 

ROTH  Fl.  germ,  i,  53  (1788).      HOFFM.  Deutsch.  fl.  ii,  27  (1795).      BRID.  muse.  rec.  II, 

P.  I,  38,  t.  i,  f.  5  (1798) ;    Bry.  univ.  i,  67   (1826).     ROEHL.  Moosg.  Deutsch.  67  (1800). 

SM.  Fl.  brit.  iii,  1158  (1804),  Eng.  Bot.  t.  1975.  TURN.  Muse.  hib.  7,  t.  i,  fig.  d-f.  (1804). 

P.  BEAUV.  Prodr.  60  (1805).    SCHULTZ  Fl.  starg.  279  (1806).    HOOK.  TAYL.  muse.  br.  12, 

t.  7  (1818).     WAHLENB.  Fl.  ups.  390  (1820).     HARTM.  Skand.  fl.  382  (1820).     HOOK.  Fl. 

scot.  P.  II,  122  (1821),  Br.  fl.  ii,  8  (1833).     MACK.  Fl.  hib.  P.  2,  10  (1836). 
Gymnast,  truncatum  HEDW.  Stirp.  i,  13,  t.  5,  f.  5-14(1787),  Sp.  muse.  30  (1801).      SWARTZ 

Muse.  suec.  20  (1799).      BRID.  Sp.  muse.   I,  30(1806),   Mant.   15   (1819).      SCHKUHR 

Deutsch,  kr.  gew.  P.  II,  21,  1. 10  (1810).   SCHWAEG.  Suppl.  I,  P.  I,  19  (1811).   WAHLENB. 

Fl.  carp.  333  (1814).     MART.  Fl.  cr.  erl.  120  (1817).      SAVI   Bot.  etrusc.  iii,  32  (1818). 

FUNCK  Moost.  6,  t.  4  (1821).      GRAY  Nat.  arr.  br.  pi.  i,  715  (1821).      NEES  HORNSCH. 

Bry.  germ,  i,  132,  t.  9,  f.  6  (1823).     HUEBEN.  Muse.  germ.  39  (1833).     DE  NOT.  Syllab. 

285  (J838). 
Pottia  enstoma  ft.  minor  EHRH.  Beitr.  i,  188  (1787). 


TORTULACE^.I  197  [Pottia. 

Bryutn  truncatnm  GMEL.  in  L.  Syst.  nat.  13  ed.  ii,  P    II,  1334  (1791). 

Gymnast,  truncatnm  ft.  minus  WEB.  MOHR  Bot.  Tasch.  81  (1807).    VOIT  Muse.  herb.   15 
(1812). 

Gymnast,  circumscissum  ROEHL.  in  Ann.  Wett.  ges.  ii,  P.  I,  122  (1810),  Deutsch.  fl.  iii,  38 

(1813)- 
Pottia  truncata  FUERNR.  in  Flora  xii,  P.  II,   Ergang.   10  (1829).     BRUCH  SCHIMP.  Bry. 

eur.  fasc.   18—20,   p.  9,   t.  4   (1843).       FIEDL.  Laubm.   meckl.  42    (1844).      RABENH. 

Deutsch.  kr.  fl.  ii,  s.  3,  97  (1848).     WILS.  Bry.  br.  94,  t.  7  (1855).     SCHIMP.  Synops.  123 

(1860),  2  ed.  152  (1876).      BERK.    Handb.  br.   m.   270  (1863).      MILDE   Bry.  siles.  97 

(1869).     DE   NOT.   Eptl.  bri.  it.  589   (1869).      HOBK.    Syn.  br.   m.   55    (1873).      HUSN. 

Mousses  nord-ouest.  65  (1873).     JURATZ.  Laubm.  oester.-ung.  92  (1882).     LESQ.  JAMES 

Mosses  N.  Amer.  101  (1884). 

Pottia  eustoma  Var.  (3.  truncata  HAMPE  in  Flora  xx,  P.  I,  287  (1837). 
Pottia  eustoma  C.  MUELL.  Synops.  i,  553  (1849). 
Pottia  truncatula  LINDB.  de  Tort.  220  (1864). 
Tortula  truncatula  LINDB.  Muse,  scand.  21  (1879). 

Autoicous ;  casspitose  or  densely  gregarious,  simple  or  dichotomous, 
deep  green.  Leaves  obovate-oblong  and  subspathulate,  shortly  acu- 
minate, mucronate  with  the  excurrent  nerve,  patent  and  patulous, 
widely  concave  at  base,  carinate  toward  apex,  plane  at  margin,  soft, 
smooth  ;  cells  at  base  hexagono-rectang.  above  large  rounded-hexagonal, 
chlorophyllose.  Seta  short,  reddish ;  caps,  subglobose-turbinate,  con- 
stricted below  the  mouth,  when  empty  truncate  and  nearly  hemispherical, 
fuscous,  leptodermous,  exannulate  ;  cal.  smooth  ;  lid  plano-convex,  with 
a  longer  or  shorter  oblique  beak,  falling  with  the  columella  attached  ; 
spores  nearly  smooth,  brown. 

Male  infl.  gemmiform,  in  axils  of  upper  leaves,  bracts  2 — 3,  ovate- 
acuminate,  nerveless. 

HAB. — Fallow   ground  in  fields  and  gardens  and  on  hedge-banks ;    common. 
Fr.  1-3. 

This  common  plant  varies  considerably  in  size  and  in  the  form  of  the 
fruit  at  maturity  and  after  the  lid  is  cast  off,  but  is  easily  recognised  by  the 
bright  green,  large  celled  leaves,  and  wide  mouthed  capsule. 

5.  POTTIA  INTERMEDIA   (Turn.)  Fuernr. 

Resembling  P.  truncatula,  but  larger.  Leaves  oblong,  apiculate, 
margin  revolute  to  above  middle.  Caps,  obovate  or  subcylindric, 
annulate.  (T.  XXVIII,  F.) 

SYN. — Bryum  exiguum  creberrimis  capsulis  rujis,  Var.  major  DILL.  Hist.  muse.  347,  t.  45,  f.  7 

F-k  (1741),  et  Herbar. 

Pottia  eustoma  Var.  major  EHRH.  Beitr.  i,  188  (1787).     C.  MUELL.  Synops.  i,  554  (1849). 
Gymnostomum  intermedium  TURN.  Muse.  hib.  7,  t.  i,  fg.  a-c  (1804).     SM.  H.  brit.  iii,  1169 

(1804),  Eng.  Bot.  t.  1976.     BRID.  Sp.  muse.  I,  31  (1806),  Mant.  13  (1819),  Bry.  univ.  i, 

69  (1826).     SCHWAEG.   Suppl.  I,  P.  I,  19,  t.  7  (1811).     MART.  Fl.  cr.  erl.   124  (1817), 

SCHULTZ  Suppl.  Fl.  starg.  65  (1819).    FUNCK  Moost.  6,  t.  4  (1821).      NEES   HORNSCH. 

Bry.  germ,  i,  135,  t.  9,  f.  7  (1823).     HUEBEN.  Muse.  germ.  40  (1833).     DE  NOT.  Syllab. 

286  (1838). 

Gymnast,  truncatum  ROEHL.  in  Ann.  Wett.  ges.  ii,  P.  I,  122  (1810),  Deutsch.  fl.  iii,  38. 
Gymnast,  truncatum  Var.  majus   WEB.  MOHR  Bot.  Tasch.  81  (1807).      VOIT   Muse.  herb. 

15  (1812).     WAHLENB.  Fl.  carp.  333  (1814). 


TORTULACE^.]  198  [Pottia. 

Gymnast,  truncatiihtm  var.  yg.  HOFFM.  Duetsch.  fl.  ii,   27   (1795).      HOOK.   TAYL.  Muse. 

br.  2  ed.  22  (1827). 
Pottia  intermedia  FUERNR.  in  Flora  xii,  P.  2,  Erganz.  10  (1829).    RABENH.  Deutsch.  kr.  fl. 

ii,  S.  3,  97  (1848).      DE   NOT.  Epil.  bri.   ital.  588  (1869).      LINDB.  in  Journ.  Lin.  Soc. 

Botany  xi,  461  (1870).     JURATZKA  Laubm.  oester.-ung.  93  (1882). 
Pottia  enstoma  HAMPE  in  Flora  xx,  P.  I,  287  (1837). 
Pottia  truncata  Var  (3.  major  ct  y.  snbcylindrica  BR.  SCHIMP.  Bry.  Eur.  fasc.  18 — 20,  p.  9, 

t.  5  (1843).     SCHIMP.  Synops.  124  (1860).     WILS.  Bry.  br.     HOBK.  HUSN. 
Pottia  lanceolata  Var.  y.  siibgymnostoma  LINDB.  de  Tort.  222  (1864). 
Pottia  lane.  Var.  gymnostoma  SCHIMP.  Synops.  2  ed.  158  (1876). 
Tortula  intermedia  LINDB.  Muse,  scand.  21  (1879). 

Autoicous ;  resembling  P.  truncatula,  but  larger.  Stem  erect,  longer, 
lax-leaved  below,  dense  above.  Leaves  pale  green,  accrescent  upward, 
erect,  subpatulous,  oblong,  faintly  papillose,  the  perich.  bracts  oblongo- 
lanc.  narrowed  at  base,  margin  more  or  less  revolute  above  the  middle, 
entire,  nerve  brown,  excurrent  in  an  apiculus ;  areolation  as  in  P.  trun- 
catula. Seta  pale  red  or  yellow,  caps,  elliptico-cylindric,  constricted 
below  mouth  when  dry ;  cal.  smooth,  cucullate,  subulate  ;  lid  obliquely 
rostellate,  paler  than  caps.,  ann.  broad  of  2 — 3  rows  of  closely  adherent 
cells  ;  a  rudimentary  peristome  often  present.  Male  infl.  gemmaceous. 

HAB. — Banks  and  walls,  not  uncommon.     Fr.  12  —  3. 

Cork  (Taylor).  Dublin  (Wilson  1830)  !  !  Henfield  (Borrer  1836)  !  Over,  Cheshire 
(Wilson  1844)  !  !  Beaumaris  (Sidebotham  1863)  !  Wetherby  (Wesley  1878)  !  !  Newlyn 
cliff  (Curnow  1872)  !  !  Bodmin  (Tellam  1878)  !  !  Miller's  dale  (Holt  1881)  !  ! 

This  does  not  differ  from  P.  truncatula  in  the  form  of  the  capsule  only, 
but  we  have  in  addition  the  presence  of  an  annulus,  and  papillose  leaves  with 
revolute  margins.  Mitten  regards  it  as  a  gymnostomous  form  of  P.  lanceolata, 
but  the  areolation  is  laxer  than  in  that  species. 


6.  POTTIA  LITTORALIS  Mitten. 

Autoicous ;  resembling  P.  intermedia,  but  with  longer  leaves ;  upper 
cells  smaller,  quite  smooth,  the  walls  much  more  incrassate. 
(T.  XXVIII,  G.) 

SYN. — Pottia  littoralis  MITT.  Journ.  Bot.  1871,  p.  4.    BRAITHW.  Journ.  Bot.  1871,  p.  290.  HOBK. 
Syn.  br.  m.  56  (1873). 

Autoicous ;  resembling  P.  intermedia,  pale  below,  green  or  bluish 
green  above.  Leaves  much  longer,  more  erect,  sheathing  at  base,  more 
obtuse,  with  the  nerve  excurrent  in  a  short  point,  lower  smaller  with  a 
longly  excurrent  nerve;  upper  cells  smaller,  quite  smooth,  with  the 
wall  much  more  incrassate,  basal  pellucid,  very  narrow  and  elongated. 
Seta  pale  orange-red,  elongated  ;  caps,  oblong-oval,  slightly  narrowed  at 
mouth,  ferruginous  ;  cal.  smooth;  ann.  adherent,  of  one  row  of  cells,  lid 
rostrate,  slightly  twisted,  oblique  ;  spores  ferruginous,  scarcely  rough. 
Male  infl.  gemmiform. 
HAB. — Sandy  ground  near  the  sea  ;  not  common.  Fr.  2 — 4. 


TORTULACE^E.]  1 99  [Pottia. 

Aldrington  beach,  Shoreham  and  Hastings  (Mitten  1855)  !  !     Beaumaris  (Hunt  1871)  !  ! 

Southport  (Boswell  1874)  !  !     Tothill,  Plymouth  (Holmes  1872)  ! 
A  plant  of  firmer  texture  than  P.  intermedia  and  difficult  to  define  ;    the 
areolation  of  the  apical  part  of  the  leaf  affords  the  best  distinction,  but  it 
may  be  only  a  variety  of  the  next  species. 

7.  POTTIA  LANCEOLATA  (Hedw.)  C.  Muell 

Autoicous,  ceespitulose.  Leaves  ovato-lanc.  acute,  revolute  ;  nerve 
excurrent  in  a  long  point.  Caps,  oval ;  cal.  smooth  ;  lid  conico- 
rostellate  ;  teeth  of  per.  longish,  perforated  or  cleft  in  the  divisural 
line.  (T.  XXIX,  A.) 

SYN. — Leersia  lanceolata  HEDW.  Stirp.  cr.  ii,  66,  t.  23  (1789).     BRID.  Muse.  rec.  II,  P. 

I,  55,  t.  i,  f.  8  (1798). 
Afzelia  lane.  EHRH.  Beitr.  vii,  4  (1792). 
Bryum  lane.  DICKS.     Crypt,  fasc.  Ill,  4  (1793).     HOFFM.  Deutsch.  fl.  ii,  31  (1795).     P. 

BEAUV.  Prodr.  47  (1805). 
Gnmmia  lane.  SCHRAD.  Samml.   kr.  gew.  i,  n.  36  (1796),  et  in  USTERI  Neu.  ann.  xiv,  106 

(1796).      SM.  Fl.  brit.   1186  (1804),  Eng.  bot.  t.  1408.      WEB.  MOHR  Bot.  Tasch.  136 

(1807).  SCHKUHR  Deutsch.  kr.  gew.  P.  II,  54,  t.  23  (1810).  VOIT  Muse.  herb.  31  (1812). 
Anacalypta  lane.  ROEHL.  Moosg.  deutsch.  109  (1800).  HARTM.  Skand.  fl.  NEES  HORNSCH. 

Bry.  germ,  i,  141,  T.  36,  f.  3  (1823).     BR.  SCHIMP.  Bry.  eur.  fasc.  18 — 20,  4,  t.  3  (1843), 

RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  99  (1848).     WILS.  Bry.  br.  99,  t.  14  (1855).     DE  NOT. 

Epil.  bri.  it.  580  (1869).     HOBK.  Syn.  br.  m.  57    (1873).      SCHIMP.  Synops.  128  (1860). 

BERK.  Handb.  br.  m.  268. 
Encalypta  lane.  ROTH  Fl.  germ,  iii,  P.  I,  150  (1800).    HEDW.  Sp.  muse.  63  (1801).     TURN. 

Muse.  hib.  19  (1804).      BRID.  Sp.  muse.  I,  90  (1806).      SCHULTZ  Fl.  starg.  282  (1806), 

Fl.  dan.  t.  1660,  f.  2.  SCHWAEG.  Suppl.  I,  P.  I,  61  (1811).  ROEHL.  Ann.  wett.ges.  iii,  163. 
Dicranum  latifolium  TURN.  op.  c.  79,  excl.  syn. 

Weissia  aciphylla  WAHLENB.  in  Vet.  ak.  nya  handl.  xxvii,  133,  t.  4,  f.  I  (1806). 
Grim,  aciphylla  WEB.  MOHR  op.  c.  p.p.  137  et  457. 
Weissia  lane.  ROEHL.  Deutsch.  fl.  2  ed.  hi,  51  (1813).  MART.  Fl.  cr.  erl.  113  (1817).    HOOK. 

TAYL.  Muse.  br.  44,  t.  14  (1818).      BRID.  Mant.  47  (1819).      HOOK.  Fl.  scot.  P,  II,  130 

(1821),  Br.  fl.  ii,  20  (1833).     MACK.  Fl.  Hibern.  P.  2,  14  (1836). 
Coscinodon  lanceolatus,  aciphyllus  and  connatus  BRID.  Mant.  et  Bry.  univ. 
Dermatodon  lanceolatus  HUEBEN.  Muse.  germ.  112  (1833). 
Desmatodon  lane.  BRUCH.  MSS.     DE  NOT.  Syll.  215  (1838). 
Pottia  lanceolata  C.  MUELL.  Synops.  i,  548  (1849).     LINDB.  de  Tort.  221   (1864).      MITT. 

Journ.  Bot.  1871,  p.  4.     HUSN.  Mouss.  nord-ouest.  67  (1873).     SCHIMP.  Synops.  2  ed. 

157  (1876).     JURATZ.  Laubm.  oester.-ung.  93  (1882). 

Tortilla  lanceolata  LINDB.  Muse.  Scand.  21  (1879). 

Autoicous  ;  in  small  bright  green  tufts,  simple  or  branched.  Leaves 
patent,  ovato  and  oblongo-acuminate,  carinate-concave,  longly  cuspidate 
with  the  excurrent  nerve ;  margin  revolute,  reflexed,  entire  or  minutely 
crenulate  at  apex  from  the  projecting  transverse  cell  walls  ;  cells  nearly 
smooth,  hexagonal  and  incrassated  above,  elongated  and  pellucid  at 
base.  Seta  orange  red,  caps,  elliptic,  rufous-brown  ;  cal.  smooth, 
subulate ;  ann.  broad,  simple,  lid  conico-rostellate,  red,  shining ;  teeth 
of  per.  on  a  narrow  basal  membrane,  pale  red,  erect,  linear-lane,  with 
8 — 10  articulations,  strongly  papillose,  entire  or  cleft  or  perforated  in 
the  divisural  line ;  spores  small,  fuscous,  papillose.  Male  infl.  axillar, 
gemmiform,  bracts  3,  broadly  ovate. 
HAB. — Bare  ground,  banks  and  tops  of  walls,  not  uncommon.  Fr.  2 — 4. 

Surrey,  Sussex,  Kent,  and  Derbyshire,  frequent. 


TORTULACE^.]  200  [Pottia. 

8.  POTTIA  CJESPITOSA  (Bruch.)  C.  Muell. 

Autoicous  ;  leaves  patent,  oblong,  mucronate,  with  plane  margins, 
perich.  bracts  3,  sheathing.  Caps,  ovate,  not  tapering  at  base;  lid 
rostrate,  cal.  smooth.  (T.  XXIX,  B.) 

SYN.— Weissia  ccespitosa  BRUCH  MSS.     BRID.  Bry.  univ.  i,  808  (1827). 

Anacalypta  ccesp.  FUERNR.  in  Flora  xii,  P.  II,  Erganz.  25  (1829).     NEES  HORNSCH.  Bry. 

germ,  ii,  P.  II,  146,  t.  37,  f.  4  (1831).     BR.  SCHIMP.  Bry.  eur.  fasc.  18—20,  3,  t.  2  (1843). 

RABENH.  Deutsch.  kr.  fl.  ii,  s.  3,  98  (1848).     WILS.  Bry.  br.  98,  t.  41   (1855).     SCHIMP. 

Synops.  127  (1860).     BERK.  Handb.  br.  m.  268  (1863).      DE   NOT.   Epil.  bri.  ital.  581 

(1869).     HOBK.  Syn.  br.  m.  57  (1873). 
Dermatodon  caesp.  HUEBEN.  muse.  germ,  in  (1833). 
Desmatodon  cmsp.  DE  NOT.  Syll.  203  (1838). 
Pottia  cassp.  C.  MUELL.  Synops.  i,  547  (1849).     LINDB.  de  Tort.  219  (1864).     MITT.  Journ. 

Bot.  1871,  p.  4.    HUSN.  Mous.  nord-ouest.  67  (1873).     SCHIMP.  Synops.  2  ed.  157  (1876). 

Autoicous  ;  densely  caespitulose,  simple  or  branched,  yellow-green. 
Leaves  patent,  lower  ovato-lanc.  upper  oblong-lane,  concave  with  plane 
margins,  papillose  at  back;  nerve  excurrent  in  a  short  mucro ;  cells 
minute,  incrassate,  rectangular  at  base,  rotundo-quadrate  above- 
Perich.  bracts  3,  erect  and  sheathing,  oblong-acuminate ;  seta  straw- 
coloured  ;  caps,  erect,  ovate,  often  rather  asymmetric,  not  tapering  at 
base,  orange-brown ;  ann.  of  one  row  of  cells  ;  lid  obliquely  rostellate 
red  ;  cal.  smooth  ;  teeth  of  per.  on  a  narrow  basal  membrane,  entire  or 
cleft,  irregular,  pale.  Male  infl.  gemmiform,  bracts  ovato-acuminate, 
nerved. 

HAB. — Chalk  hills,  very  rare.     Fr.  3 — 4. 

Woolsonbury  hill,  Sussex  (Mitten  1846)  !  !     Near  Arundel  (Davies  1857)  !  ! 

9.  POTTIA  STARKEI   (Hedw.)   C.  Muell. 

Paroicous  ;  caespitose.  Leaves  ovato-lanc.  nerve  excurrent,  margin 
reflexed.  Capsule  oval,  small,  calyptra  scabrous,  lid  convexo-conic, 
obtuse,  peristome  short,  more  or  less  imperfect.  (T.  XXIX,  C.) 

SYN. — Weissia  Starkeana    HEDW.    Stirp.  cr.  iii,  83,   t.   34   B.  (1792),  Sp.    muse.  65.     BRID. 

Muse.  rec.  II,  P.  I,  77  (1798),  Sp.  muse.  I,  117  (1806),  Mant.  44  (1819),  Bry.  univ.  i,  553 

(1826).     ROEHL.  Moosg.  deutsch.  157  (1800),  Deutsch.  fl.  iii,  50  (1813),  Ann.  Wett.  ges. 

iii,  108.     SCHVVAEGR.  Suppl.  I,  P.   I,  68   (1811).     HOOK.   TAYL.  Muse.  brit.  44,  t.  14 

(1818).     FUNCK  Moost.  13,  t.  9  (1821).     GRAY  Nat.  arr.  br.  pi.  i,  729  (1821).      HOOK. 

Br.  fl.  ii,  20  (1833).     MACK.  Fl.  hib.  P.  2,  14  (1836). 

Bryum  Stark.  HOFFM.  Deutsch.  fl.  ii,  32  (1795).     P.  BEAV.  Prodr.  49  (1805). 
Grimmia   Stark.  ROTH  Fl.  germ,  iii,  P.  I,    146  (1800).      SM.   Fl.  brit.   1186   (1804),   Eng. 

Bot.  t.  1490.     WEB.  MOHR  Bot.  Tasch.  137  (1807).     SCHKUHR  Deutsch.  kr.  gew.  P.  II, 

57,  t.  24  (1810).     VOIT  Muse,  herb.  32  (1812). 
Bryuni  minutum  DICKS.  Crypt,  fasc.  IV,  7,  t.  10,  f.  17  (1801). 
Anacalypta  Stark.  FUERNR.  in  Flora  xii,   P.  II,  Erganz.   25    (1829).     NEES    HORNSCH. 

Bry.  germ,  ii,  P.  II,  138,  t.  36,  f.  2  (1831).     BR.  SCHIMP.  Bry.  eur.  fasc.  18-20,  p.  2,  t.  i 

(1843).     RABENH.  Deutsch.  kr.  fl.  ii,  5.3,  98  (1848).     WILS.  Bry.   br.  97,  t.  14(1855). 

SCHIMP.  Synops.  126  (1860).     BERK.  Handb.  br.  m.  268  (1863).      DE  NOT.  Epil.  bri. 

ital.  582  (1869).     HOBK.  Syn.  br.  m.  57  (1873). 
Dermatodon  Stark.  HUEBEN.  Muse.  germ.  109  (1833). 
Desmatodon  Stark.  DE  NOT.  Syll.  205  (1838) 


TORTULACEJE.]  2OI  [Pottia. 

Pottia  Stark.  C.  MUELL.  Synops.  i,  547  (1849).  MITT,  in  ann.  nat.  hist.  Ser.  2,  viii,  312 
(1851),  Journ.  Bot.  1871,  p.  3.  LINDB.  de  Tort.  219  (1864).  HUSN.  Mouss.  nord-ouest. 
66  (1873).  SCHIMP.  Synops.  2  ed.  156  (1876).  JURATZ.  Laubm.  oester.-ung.  92  (1882). 
LESQ.  JAMES  Mosses  N.  Amer.  103  (1884). 

Pottia  mutica  VENTURI   DE  NOT.  Epil.  bri.  ital.  592  (1869). 

Tortula  Starkci  LINDB.  Muse,  scand.  21  (1879). 

Paroicous  ;  dwarf,  caespitose.  Leaves  spreading,  ovate-  and 
oblongo-lanceolate,  papillose  above,  margin  recurved,  entire,  nerve 
reddish,  excurrent  in  a  short  mucro ;  cells  rectangular  at  base,  opake 
and  hexagonal  above.  Caps,  on  an  orange  seta,  minute,  oval  or  oblong, 
glossy,  castaneous,  leptodermous ;  cal.  scabrous ;  ann.  narrow,  per- 
sistent ;  lid  orange,  obtuse  conic  ;  teeth  flat,  linear,  obtuse  or  truncate, 
of  3 — 4  artic.  entire  or  perforated,  papillose,  pale  yellow,  erect  when 
dry.  Antheridia  axillary  in  upper  leaves,  sometimes  covered  by  a  bract. 
HAB. — Fallow  fields  and  banks  ;  not  common.  Fr.  12 — 3. 

Near  Dublin  and  Cork.  Cliffs  on  Sussex  coast  and  Hurstpierpoint  (Mitten).  Rotting- 
dean  (Davies  1855) ! !  Plymouth  (Holmes  1867)  ! !  Beaumaris  (Hunt  1871).  Buxton 
(Hunt  1872)  !  !  Penzance  (Curnow). 

Var.  ft.  affinis  (Hook.  Tayl.) 

Leaves  longer,  paler  and  more  erect ;  teeth  very  short,  truncate. 

Sv-K.—Weissia  affinis  HOOK.  TAYL.  Muse.  br.  44,  t.  14  (1818).      BRID.  Bry.  un.  i,  354.      HOOK. 
Br.  fl.  20.    GRAY. 

Dermatodon  aff.  HUEBEN.  Muse.  no. 
Anacalypta  aff.  FCERNR.  1.  c. 

Anacalypta  Stark,  ft-  brachyodus.  Bry.  eur.  C.  MUELL. 

Pottia  Stark.  Var.  ft.  brachyoda.  LINDB.  de  Tort.  219.     SCHIMP.  Synops.  2  ed. 
HAB. — Coast  of  Sussex,  Durham  and  Anglesea,  Dublin. 
Var.  y.  Davallii  (Sm.)  Lindb. 

Very  small ;  leaves  patulous,  becoming  red  by  age,  nerve  rufous.  Caps, 
ovate,  truncate,  lid  large. 

SYH.—Gymnostomum  Davallianum  SM.  in  KON.  SIMS  Ann.   Bot,  i,  577  (1805),  et  in  SCHRAD. 
Journ.  i,  191. 

Gymn.  rnfescens  SCHULTZ  Fl.  starg.  278  (1806).  NEES  HNSCH.  Bry.  germ,  i,  121,  t.  9,  f. 
i.  BRID.  Mant,  12.  Bry.  univ.  i,  62. 

Gymn.  minutulum  SCHLEICH.  Cat.  pi.  helv.  29  (1807).  WEB.  MOHR  Tasch.  479.  SCHWAEGR. 
Suppl.  I,  P.  I,  25,  t.  9.  BRID.  Mant.  12  ;  Bry,  un.  i,  61.  NEES  HORNSCH.  SCHIMP. 
DE  NOT.  HUEBEN. 

Gymn.  conicum  SCHLEICH.  1.  c.     SCHWAEGR.  Suppl.  I,  P.  I,  26,  t.  9.     HOOK  TAYL.  12,  t.  8. 

Eng.  bot.  t.  2676.     BRID.  op.  c.     NEES  HORNSCH.     HUEBEN.     DE  NOT,  &c. 
Gymn.  reflexum  BRID.  Bry.  univ.  i,  63. 
Pottia  minutula,  rufescens  and  conica  FUERNR  op.  c.  10. 

Pottia  minutula  et  Var.  ft.  rufescens  and  y.  conica  Bry.  eur.     WILS.  Bry.  br.  93.     SCHIMP. 

Synops.     BERK.     DE  NOT. 
Pottia  Starkei  Var.  y.  gymnostoma  LINDB.  de  Tort.  219  (1864). 

HAB. — Clay  soil  and  fallow  fields  ;  not  uncommon. 

Although  the  three  plants  here  brought  together,  are  usually  regarded 
as  distinct,  there  is  no  structural  difference  to  be  detected  between  them  ; 
the  capsule  is  very  variable  in  length,  and  the  peristome  equally  so  in  the 
amount  of  its  development. 


TORTULACE^.]  202  [Pottia. 

10.  POTTIA  ASPERULA  Mitten. 

Paroicous ;  densely  caespitose.  Leaves  quinquefarious,  obovate- 
spathulate,  obscure,  papillose,  nerve  excurrent ;  caps,  oval,  lid  conic, 
rostellate,  cal.  papillose.  (T.  XXIX,  D.) 

SYN.— Pottia  aspcrula  MITT.  Journ.  Bot.   1871,  p.  4.      BRAITHW.  Journ.   Bot.   1871,   p.  290. 
HOBK.  Syn.  br.  m.  56  (1873.) 

Paroicous ;  densely  caespitose,  short,  pale  yellowish-green.  Leaves 
quinquefarious,  obovate-spathulate,  acute,  not  acuminate,  nerve  excur- 
rent in  a  longish  point,  margin  slightly  recurved  ;  upper  cells  quadrato- 
hexag.  rather- obscure,  each  with  several  minute  conical  papillae,  lower 
hexagono-rectang.  smooth,  pellucid.  Seta  rather  short,  reddish  yellow, 
caps,  oval  or  turbinate  when  empty,  widest  about  the  middle,  reddish 
brown  ;  cal.  with  scattered  obtuse  papillae  on  the  upper  half;  lid  paler, 
conic  with  a  short  oblique  obtuse  beak. 
HAB. — Banks  and  crevices  of  rocks  near  the  sea  ;  rare.  Fr.  i — 3. 

Henfield,  Sussex  (Mitten)  !  !  Jersey  (Piquet).  Howth,  Dublin  (Moore  1856).  Penlee 
point,  Penzance  and  Perran  cliff  (Curnow  1871)  !  ! 

This  much  resembles  P.  truncatula,  but  has  leaves  more  obscure  and 
papillose,  as  is  also  the  calyptra.  P.  viridifolia  and  crinita  are  distinguished 
by  octofarious  leaves  and  a  smooth  cal.  though  in  other  respects  coming  very 
near  to  it. 

ii.  POTTIA  VIRIDIFOLIA  Mitten. 

Paroicous ;  densely  caespitose.  Leaves  octofarious,  obovate- 
spathulate,  papillose,  nerve  excurrent ;  caps,  oblong,  lid  rostellate,  cal. 
smooth.  (T.  XXIX,  E.) 

SYN. — Pottia  pallida  (non  LINDB.)  BRAITHW.  Journ.  Bot.  1870,  p.  255. 

Pottia  viridifolia  MITT.  Journ.  Bot.  1871,  p.  5.  BRAITHW.  Journ.  Bot.  1871,  p.  290.  PI. 
119,  f.  4.  HOBK.  byn.  br.  m.  57  (1873). 

Paroicous ;  densely  caespitose,  bright  yellow  green.  Leaves 
octofarious,  forming  a  rosette-like  coma,  obovate-spathulate,  erecto. 
patent,  obtuse  or  slightly  acute,  margin  recurved  at  the  middle,  nerve 
excurrent  in  a  short  point ;  upper  cells  hexagonal,  obscure  with 
chlorophyl,  papillose,  lower  oblong,  hyaline,  smooth.  Caps,  on  a  short 
yellow  seta,  oblong,  narrower  than  in  P.  asperula,  rufous  brown  ;  cal. 
smooth,  lid  rostrate. 
HAB. — Earthy  ledges  of  rocks  by  the  sea  ;  not  common.  Fr.  i — 3. 

By  an  old  quarry  near  St.  John's,  Plymouth  (Holmes  1870)  ! !  Slate  rocks  at  Pentire  and 
Withiel  (Tellam  1871) ! !  Boscawen  cliff  and  Tregyptian  cliff,  Penzance  (Curnow  1872)  ! ! 
Basaltic  rocks  at  Blackhead,  Belfast  (Stewart  1884)  !  ! 

The  deep  green  colour  and  firm  texture  of  this  plant  are  remarkable, 
and  the  leaves  are  appressed  and  twisted  when  dry. 


TORTULACE.E.]  203  [Pottia. 

12.    POTTIA  WILSONI  (Hook.)  By.  Schimp. 

Paroicous ;  in  dense  round  tufts.  Leaves  octofarious,  obovate- 
oblong,  nerve  excurrent  in  a  long  point ;  areolation  minute  opake. 
Caps,  long,  elliptic ;  cal.  scabrous,  lid  rostrate.  (T.  XXIX,  F.) 

SYN. — Bryum    exiguum,    creberritnis  capsiilis  rttfis.  DILL.  Hist.    muse.  347,  t.  45,  f.  7  A — E 

(1741)  et  Herb. 
Gymnostomum  Wilsoni  HOOK.  Bot.  miscel.  i,  143,  t.  41  (1830),  Br.  Fl.  8  (1833).     WILS.  in 

Eng.  bot.  suppl.  t.  2710  (1834). 
Pottia  Wilsoni  BRUCH  SCHIMP.  Bry.  eur.  fasc.  18—20,  Mon.  n,  t.  6  (1843).     C.  MUELL, 

Synops.  i,  554  (1849).     WILS.  Bry.  brit.  95,  t.  41  (1855).      SCHIMP.   Synops.  124  (1860). 

2    ed.    152    (1876).      BERK.   Handb.  br.  m.   270  (1863).      LINDB.  de  Tort.  220  (1864), 

MITT.  Journ.  Bot.  1871,  p.  3.     HUSN.  Mouss.  nord-ouest.  66  (1873).     HOBK.  Syn.  br.  m. 

56  (1873).     LESQ.  JAMES  Mosses  N.  Amer.  101  (1884). 
Gymnast.  Combos?  DE  NOT.  Syll.  286  (1838). 
Entosthymenium  mucronifolium   BRUCH  in  Flora  xii,  P.  II,  387,  t.   i,  f.  n  (1829),  sec. 

Mitten  e  spec. 

Paroicous ;  csespitose,  simple,  pale  glaucous  green.  Leaves  octo- 
farious, crowded,  accrescent  upward,  erecto-patent,  when  dry  subimbri- 
cated,  lower  obovate-oblong,  upper  broadly  oblongo-spathulate  with  a 
rounded  apex,  cuspidate  with  the  longly  excurrent  nerve,  plano-convex 
with  the  margin  recurved  ;  cells  lax  and  rectangular  at  base,  above 
opake,  small  quadrate,  chlorophyllose,  strongly  verruculose,  the  two 
marginal  rows  larger  and  more  transparent.  Cal.  fuscescent  and 
scabrous  above  ;  caps,  with  a  distinct  neck,  oblongo-elliptic,  narrower 
at  mouth,  glossy  castaneous,  on  an  orange  seta,  twisted  to  the  right 
when  dry ;  lid  from  a  convex-conic  base,  obliquely  rostrate,  ann.  rather 
broad,  of  i  series  of  cells ;  a  rudimentary  peristome  sometimes  present 
as  an  irregular  papillose  membrane.  Male  inflor.  free  in  the  axils  of  the 
comal  leaves. 
HAB. — Sandy  rocky  ground  ;  not  common.  Fr.  i — 2. 

Over,  Cheshire  (Wilson  1828)  !  !  Barrow  hill,  Henfield  (Borrer)  \  Llanfachlog  and 
Holyhead  (Wilson  1830)  !  Old  wall  at  Haymarket,  Edinburgh.  Carnarvon  (Valentine 
1838).  Penzance  (Curnow  1861)  !  !  Marazion  bridge  (Curnow  1869).  West  Kirby, 
Birkenhead  (Boswell  1862)  !  !  Cawsand  Bay  (Hunt  1871)  !  !  Minehead  (Miss  Gifford 
1867)  !  Southport  (Wild  1876)  !  Blackburn  (Dr.  Wood  1877)  !  St.  Minver  and  Mara- 
zion (Tellam  1879)  !  Wrexham  (Bowman). 

Best  distinguished  by  its  elongated  capsule,  and  the  minute  opake 
areolation  of  the  upper  part  of  leaf ;  the  ripe  capsule  becomes  rugose  when 
dry.  The  plant  from  Marazion  bridge  has  longer  hair-points,  and  a  tapering 
apex,  composed  of  narrow  incrassate  rhomboidal  cells. 

13.  POTTIA  CRINITA  Wilson. 

Paroicous  ;  resembling  P.  Wilsoni.  Leaves  octofarious,  spathulate, 
obtuse,  the  nerve  excurrent  in  a  long  pale  green  hair ;  cal.  smooth  ; 
caps,  shorter  with  a  wider  mouth,  lid  obliquely  rostellate.  (T.  XXX,  A.) 

SYN.— Pottia  crinita  WILS.  MSS.  BRUCH  SCHIMP.  Bry.  eur.  fasc.  42,1.1(1849).     C.  MUELL. 
Synops.  ii,  622  (1851).     WILS.  Bry.  brit.  95,  t.  41  (1855).     SCHIMP.  Synops.  125  (1860), 


TORTULACE^.]  204  [Pottia. 

2  ed.  153.  BERK.  Handb.  br.  m.  271,  t.  23,  fig.  2  a-d  (1863).  LINDB.  de  Tort.  220 
(1864).  DE  NOT.  Epil.  bri.  ital.  586  (1869).  MITT.  Journ.  bot.  1871,  p.  5.  HoBK.Syn.br. 
m.  56(1873). 

Paroicous ;  densely  csespitulose,  innovating  at  apex,  bright  yellow- 
green.  Leaves  dense,  octofarious,  spathulate,  very  obtuse,  nerve 
excurrent  in  a  long  pale  green  rigid  hair  ;  margin  recurved  ;  cells  at  base 
thin,  pellucid,  narrowly  rectangular,  above  papillose,  chlorophyllose, 
larger,  hexagonal.  Seta  orange,  twisted  to  the  left  above,  to  the  right 
below  ;  caps,  oval  with  a  short  neck,  leptodermous,  shorter  and  wider 
at  mouth  than  that  of  P.  Wilsoni,  reddish  brown;  cal.  large  smooth, 
lid  short,  pale  red,  obliquely  rostellate,  ann.  very  narrow,  persistent  ; 
spores  smooth.  Antheridia  naked,  in  pairs  in  the  axils  of  the  comal 
leaves. 
HAB. — Moist  banks  and  rocks  by  the  sea.  Fr.  3 — 4. 

Near  Forfar  (Don  1802).  Redhead,  Montrose  (Drummond  1827)  !  Girdleness  lighthouse, 
Aberdeen  (Dickie  1840) !  !  Penzance  and  Guernsey  (Ralfs  1844)  !  !  Torquay  (Mrs. 
Griffiths).  Aldrington  beach,  Brighton  (Mitten)  !  !  Between  Garth  ferry  and  Beau- 
maris  (Frazer  1867)  !  Elie,  Fife  (Howie  1867)  !  St  Prideux  head,  Devon  (Holmes 
1870)  !  Old  Cambus,  Northumberland  (Hardy  1869)  !  Shaugh,  Devon  ;  Trevarthen 
and  St.  Minver  (Tellnm  1879)  !  !  Kymyal  cliff,  and  Boscawen  cliff,  Penzance  (Curnow 
1872)  !  !  Howth,  Dublin;  Rossbay  and  Malahide  (Moore).  Blackhead,  Belfast 
(Stewart  1882)  !  Douglas  and  Kirkmichael,  I.  of  Man  (Holt  1880) !  ! 

Closely  resembling  P.  Wilsoni  with  which  it  was  at  first  confounded  by 
Hooker,  but  readily  separated  by  the  smooth  calyptra  and  lax  areolation, 
which  is  like  that  of  P.  truncatula. 


14.  POTTIA  LATIFOLIA  (Schwaeg.)  C.  MuelL 

Autoicous  ;  csespitose.  Leaves  closely  imbricated,  broadly  obovate, 
smooth,  nerve  vanishing  below  apex.  Caps,  oval-oblong,  lid  oblique, 
rostrate  ;  teeth  of  per.  lanceolate,  cleft.  (T.  XXX,  B.) 

SYN. — Weissia  lalifolia  SCHWAEG.  in  SCHULTES  Reis.  Grossglock.  IV,  App.  (1804),  Suppl.  I,  P. 

I,  64,  t.  18  (1811).      GREV.  Scot.  Cr.  fl.  iii,  t.  149  (1814).      ROEHL.   Deutsch.  fl.  iii,  51 

(1813).     BRID.  Mant.  44  (1819),  Bry.  univ.  i,  356  (1826).     FUNCK  Moost.  13,  t.  9  (1821). 

HOOK.  TAYL.  Muse.  brit.  2  ed.  80,  t.  suppl.  3  (1827).     HOOK.  Br.  fl.  ii,  20  (1833). 
Grimmia  latifolia  WEB.  MOHR  Bot.  Tasch.  147  (1807). 
Anacalypta  latif.  FUERNR.  in  Flora  xii,  P.  II,  Erganz.  25  (1829).      NEES  HORNSCH.  Bry. 

germ,  ii,  P.  II,  135,  t.  36,  f.  i  (1831).      BRUCH  SCHIMP.  Bry.  eur.  fasc.  18 — 20,  p.  5,  t.  4 

(1843).     RABENH.  Deutsch.  kr.  fl.  ii,  s.  3,  99  (1848).      WILS.  bry.  brit.  100,  t.  33  (1855). 

SCHIMP.  Synops.  129  (1860).     BERK.  Handb.  br.  m.  269  (1863).     DE  NOT.  Epil.  bri.  ital. 

579  (1869).     HOBK.  Syn.  br.  m.  58  (1873). 
Dermatodon  latif.  HUEBEN.  Muse.  germ.  116  (1833). 
Desmatodon  bulbosus  DE  NOT.  Syllab.  203  (1838).     AONGST.  in  Nov.  act.  soc.  Upsal.  xii, 

369  (1844). 

Didymodon  bulbosus  HARTM.  Skand.  fl.  4  ed.  382  (1843). 
Pottia  latifolia  C.  MUELL.  Synops.  i,  549  (1849).       SCHIMP.   Synops.  2  ed.  158   (1876). 

JURATZ.  Laubm.  oester.-ung.  94  (1882).      LESQ.  JAMES  Mosses  N.  Amer.  103  (1884). 
Pottia  pilifera  ft.  mutica  LINDB.  de  Tort.  223  (1864). 
Tortula  bullata  ft.  mutica  LINDB.  Muse,  scand,  21  (1879). 
Stegonia  latifolia  VENTURI  in  Rev.  bryol.  1883,  p.  96. 


TORTULACE^E.]  205  [Tortula. 

Autoicous ;  gregarious  or  csespitulose,  gemmiform,  stramineous  or 
silvery  ;  stem  simple  or  innovating.  Leaves  imbricated,  glossy,  broadly 
obovate,  lower  obtuse,  upper  apiculate,  very  concave,  margin  incurved, 
nerve  vanishing  below  apex ;  cells  at  base  rectangular,  above  small, 
rhombic,  incrassate.  Perich.  bracts  elongated,  narrowed,  seta  longish, 
orange,  caps,  oval-oblong,  annulate,  glossy  castaneous,  lid  obliquely 
rostrate ;  teeth  lanceolate,  entire  or  cleft  to  middle,  pale  or  reddish. 
Male  infl.  gemmiform,  bracts  three,  oval. 

HAS. — Crevices  of  rocks  ;  very  rare.     Fr.  5 — 6. 

Glen  Phee,  Clova  (Drummond  1824)  !  !     Carr  rocks  above  Castleton  (Dickie  1867)  !  ! 

Differing  so  much  in  habit  from  the  other  species  that  I  have  felt  tempted 
to  follow  Venturi  and  regard  this  as  the  type  of  a  distinct  genus,  but  the 
similarity  in  the  capsule  and  peristome  to  those  of  Pottia  has  inclined  me  to 
retain  it  here.  According  to  specimens  in  Dickson's  and  Smith's  herbaria, 
Bryum  piliferum  DICKS.  Crypt,  fasc.  IV,  10,  t.  10,  fig.  14.  belongs  to 
Tortnla  (Desmatodon)  systylia  (BR.  SCHIMP.)  a  rare  species  found  at  great  altitudes 
in  Norway,  and  most  unlikely  ever  to  have  been  found  at  Aberfeldy  ;  P.  latifolia 
var.  ft.  pilifera  (Dicramim  bullatum  SOMM.)  must  therefore  be  excluded  from  our 
lists  as  well  as  Tortula  (Desmatodon}  latifolia  (HEDW.). 

5.  TORTULA  HEDW. 

(Fund.  muse.  II,  92  (1782). ) 

Plants  short  or  tall,  caespitose,  simple  or  dichotomously  branched, 
yellowish-green.  Leaves  oblong  or  spathulate,  papillose,  usually  obtuse 
with  the  nerve  excurrent  or  extended  into  a  long  pellucid  hair ;  areola- 
tion  hyaline  and  elongated  at  base,  quadrato-hexag.  opake  and  chloro- 
phyllose  above  ;  perich.  bracts  scarcely  diverse.  Cal.  cucullate.  Caps, 
erect,  oblong  or  cylindraceous,  subincurved,  sometimes  gymnostomous, 
teeth  of  peristome  32,  filiform,  carinate,  papillose,  remotely  jointed, 
placed  on  a  distinct  tubular,  more  or  less  elongated  basal  membrane, 
straight,  incurved  or  spirally  contorted.  Spores  small,  nearly  smooth. 
Inhabiting  the  ground,  walls,  or  rocks,  rarely  trees.  Der.  tortus 
twisted. 

The  genera  Tortula  and  Barbula  were  founded  by  Hedwig  in  his  Fund, 
muscorum,  but  he  gives  no  other  distinction  than  that  Tortula  has  mon- 
oicous  infl.  (ex.  T.  muralis  and  subulata),  and  Barbtila  dioicous  (ex.  B. 
rurnlis  and  unguiculata}.  This  character  is,  of  course,  insufficient  to 
separate  genera,  and  Schreber  amended  it  by  uniting  the  two,  and 
naming  it  Tortula,  in  which  he  has  been  followed  by  most  English 
authors,  while  the  continental  writers  sink  Tortula  and  use  that  of  Bar- 
bula. By  bringing  into  greater  prominence  the  colour  and  structure  of 
the  leaves,  we  obtain  two  series,  which  may  conveniently  be  retained  as 


TORTULACE^:.] 


2O6 


'Tortula. 


genera  under  the  old  names,  Tortula  being  used  for  the  species  with 
broad  green  leaves,  and  more  or  less  opake  areolation,  Barbula  for  those 
with  narrow  leaves,  becoming  rust  coloured  or  yellow,  and  the  cells 
incrassated  or  dot-like.  We  are  thus  able  to  bring  under  Barbula 
mosses  without  peristomes  to  the  fruit,  but  agreeing  so  closely  in  the 
vegetative  system  with  species  of  Barbula,  that  in  a  barren  state  it  is 
impossible  to  separate  them — e.g.,  Gymnostomum  curvirostre . 

The  teeth  of  the  peristome  in  Tortula  consist  of  two  rows  of  cells,  which 
are  not  on  the  same  plane  ;  the  inner  series  larger  paler  and  trans- 
versely striate  on  a  minute  scale,  the  outer  more  solid  and  reddish. 


CLAVIS  TO  THE  SPECIES. 


Teeth  of  peristome  not  united  in  a  tube. 
Nerve  narrow,  lamelliferous  above. 

Capsule  ovate,  gymnostomous.  pusilla. 

subcylindric,  peristome  imperfect.  lamellata. 

Nerve  very  broad,  covered  above  with  short  jointed  filaments. 

Synoicous.  brevirostris. 

Dioicous. 

Calyptra  reaching  half  way  down  capsule.     ,  stellata. 

only  covering  lid. 

Capsule  erect,  straight.  ericcefolia. 

inclined,  subincurved.  aloides. 

Nerve  free  from  appendages. 

Nerve  much  thicker  toward  apex.  atrovirens. 

thin  and  regular. 

Leaves  without  a  thickened  border. 

Leaves  with  plane  margins,  points  not  hoary. 

Caps,  oblong  ;  1.  broad,  obovate  mucronate.  cnncifolia. 

cylindric,  1.  subspathulate,  long-pointed.  Vahlii, 

Leaves  with  recurved  margins  and  hoary  hair-points.         muralis. 
Leaves  with  a  thickened  border. 

Plants  short,  simple,  1.  acute,  pointed  marginata. 

tall,  branched,  1.  obtuse,  mucronate.  mucronata. 

Lower  i— f  of  peristome  forming  a  tesselated  tube. 

Nerve  gemmiferous  above.  papillosa. 

Nerve  smooth. 

Stem  short,  leaves  yellowish  green. 

Leaves  piliferous,  capsule  oblong.  canescens. 

Leaves  cuspidate,  caps,  cylindraceous. 

Leaves  broad,  subspathulate,  entire.  snbulata. 

narrow,  linear  oblong,  bluntly  serrate.  angustata, 

Stem  elongated,  1.  dingy  green  or  rufescent. 

Leaves  obtuse,  emarginate.  mntica. 

piliferous. 

Hair  point  smooth.  hevipila. 

spinulose. 

Leaves  squarroso-recurved.  ruralis. 

erecto-patent 

Dioicous,  olivaceous  green.  montana. 

Synoicous,  ferruginous.  princeps. 

Sect.  i.  DESMATODON  (End.).  Stems  short ;  leaves  like  those  of 
Pottia,  often  hair-pointed.  Peristome  a  short  basal  tubular  membrane,  bearing 
32  teeth,  filiform,  free  or  united  at  base  by  transverse  bands,  slightly 
twisted  or  spirally  contorted. 

A.  Pterygoneuron.  Nerve  on  the  upper  surface  bearing  2  or  4  vertical 
lamellae. 


TORTULACE^E.]  2O7  [Tortula. 

i.  TORTULA  PUSILLA  (Bed.)  Mitt. 

Autoicous.  Leaves  obovate,  piliferous,  concave,  lamelligerous  in  the 
upper  part.  Caps,  ovate,  gymnostomous.  (T.  XXX,  C.) 

SYN. — Bryum  pusillurn    HEDW.  Fund.    muse.   II,  32   (1782).       RELH.    Fl.   cant.   404    (1785). 

LAICH.  PI.  eur.  484  (1794).     WITH.  Bot.  arr.  br.  veg.  3  ed.  iii,  811  (1796).      ABBOT  Fl. 

bedf.  240  (1798).     HULL  Br.  fl.  P.  II,  256  (1799). 
Gyinnostomum  pusillum  HEDW.  op.  c.  87. 
Gymn.  ovatum  HEDW.  Stirp.  cr.  i,  16,  t.  b  (1787),  Sp.  muse.  31.  ROTH  Tent.  fl.  germ,  i,  453 

(1788),  iii,  P.  II,  123.     TIMM  Fl.  meg.  n.  724  (1788).     SCHRANK  Baiers.  fl.  ii,  438  (1789). 

SIBTH.  Fl.  oxon.  272  (1794).     HOFFM.  Deutsch.  fl.  ii,  27  (1795).     BRID.  Muse.  rec.  II, 

P.  I,  40  (1798),  Sp.  muse.  I,  31  (1806),  Mant.  12  (1819),  Bry.  univ.  i,  59  (1826).    SWARTZ 

Muse.  suec.  20  (1799).      ROEHL.   Moosg.  deutsch.   15   (1800),  Ann.  wett.  ges.  i,  121, 

Deutsch.  fl.  iii,  38  (1813).     TURN.  Muse.  hib.  9  (1804).     SM.  Fl.  brit.  1160  (1804) ;  Eng. 

bot.  t.   1889.      P.   BEAUV.   Prodr.  59    (1805).     SCHULTZ  Fl.  starg.  279  (1806).     WEB. 

MOHR   Bot.  Tasch.  80  (1807).      SCHKUHR  Deutsch.  kr.  gew.   P.  II,   20,   t.   9    (1810). 

SCHWAEG.  Suppl.  I,  P.  I,  79  (1811).     VOIT  Muse.  herb.  15  (1812).     WAHLENB.  Fl.  carp. 

334  (1814)  ;  Fl.  ups.  390  (1820).    MART.  Fl.  cr.  erl.  420  (1817).    HOOK.  TAYL.  Muse.  br. 

ii,  t.  7  (1818).     HARTM.  Skand.  fl.  383  (1820).     FUNCK  Moost.  5,  t.  4  (1821).      HOOK. 

Fl.  scot.  P.   2,   122   (1821),  Br.  fl.  ii,  8  (1833).     GRAY  Nat.  arr.  br.  pi.  i,  715  (1821). 

ZENK.  DIETR.  Muse.  thur.  II,  n.  47  (1822).     NEES  HORNSCH.  Bry.  germ,  i,  128,  t.  9,  f. 

5  (1823).     HUEBEN.  Muse.  germ.  36  (1833).     MACK.  Fl.  hib.  P.  2,  10  (1836).     DE  NOT. 

Syll.  284  (1838). 
Pottia  cavifolia  EHRH.  Beitr.  i,  187  (1787).     KUNZE   Deutsch.  cr.   gew.  20  (1795).     BR. 

SCH.  Bry.  eur.  f.  18—20,  p.  7,  t.  2  (1843).     C.  MUELL.  Synops.  i,  550  (1849).     RABENH. 

Deutsch.  kr.  fl.  ii,  s.  3,  96  (1848).     WILS.  Bry.  br.  92,  t.  7  (1855).      SCHIMP.   Syn.   122 

(1860),  2  ed.  151.     BERK.  Handb.  br.  m.  269,  t.  23,  f.  2,  e.  (1863).     DE   NOT.  Epil.  585 

(1869).     MILDE  Bry.  sil.  95  (1869).     HUSN.  Mouss.  nord-ouest.  64  (1873).     LESQ.  JAMES 

Mosses  N.  Amer.  101  (1884). 
Bryum  ovatum  DICKS.  Crypt.  II,  4  (1790). 
Pottia  ovata  FUERNR.  in  Flora  xii,  P.  II,  Erganz.  10  (1829). 
Pottia  pusilla  LINDB.  in  Oefv.  vet.  ak.  foerh.  xx,  410  (1863) ;  de  Tort.  218  (1864).     HOBK. 

Syn.  br.  m.  55  (1873). 

Tortula  pusilla  MITT.  Journ.  Linn.  Soc.  Bot.  xii,  165  (1869). 
Pterigoneurum  cavifolium  JURATZ.  Laubm.  oester.-ung.  96  (1882). 

Autoicous;  stems  simple,  short.  Leaves  obovate-oblong,  very  concave, 
subimbricated,  erecto-patent,  crowded  into  a  gemmule  ;  nerve  excurrent 
as  a  hair  of  variable  length,  bearing  on  the  upper  side  two  follicles  which 
burst  and  form  4  lamellae,  decurrent  on  the  nerve  ;  cells  above  quadrate, 
at  base  rectangular.  Caps,  on  a  short  red  seta,  ovate  or  elliptic,  brown, 
gymnostomous ;  annulus  of  two  rows  of  cells,  lid  shorter  than  caps, 
obliquely  rostellate.  Male  infl.  gemmiform  at  base  of  fruiting  shoot, 
bracts  broadly  ovate,  nerved  half-way. 

HAB. — On  banks  and  tops  of  walls.         Fr.  i — 3. 

A  very  variable  plant,  in  the  length  of  the  seta,  and  the  hair-point  to 
the  leaf,  and  so  closely  allied  to  the  next  species  that  it  must  be  placed  with 
it,  and  therefore  to  be  regarded  as  the  connecting  link  between  Pottia  and 
Tortula.  Another  of  this  group — T.  subsessilis  (BRID.)  is  found  in  central 
Europe. 

Var.  /3.  incana  (Nees  Hornsch.) 

Plants  short  in  small  crowded  tufts  ;  leaves  with  very  long  hair-points  ; 
capsule  scarcely  emergent,  spheric-oval. 


TORTULACE^E.]  208  [Tortula. 

SYN. — Gymn.  ovatum  Var.  incanum  NEES  HORNSCH.  BRY.  germ.  130,  t.  9,  f.  5.     BRID    Bry. 

univ.  i,  61. 
Pottia  cavifolla  Var.  incana  SCHIMP.  Synops.  122. 

HAB.— Newhaven  (Borrer  1838)  !     Harbury,  Warwick  (Bagnall]  \  \ 


2.    TORTULA  LAMELLATA  Lindb. 

Autoicous ;  stem  simple.  Leaves  broad,  oval-oblong,  mucronate 
with  the  excurrent  nerve,  very  concave,  nerve  at  upper  part  with  4  broad 
lamellae.  Caps,  subcylindric,  peristome  very  fragile,  adherent  to  lid. 
(T.  XXX,  D.) 

SYN. — Gymnostomum  ovatum  Var.  /?.  gracile  HOOK.  TAYL.  Muse.  br.   12    (1818)  ;    Br.  Flora  ii, 

8  (1833).     GRAY  Nat.  arr.  br.  pi.  i,  715  (1821). 
Pottia  cavifolia    Var.  S.  barbuloides  DURIEU   MSS.    SCHIMP.  Coroll.   24  ;  Synops.    122 

(1860). 

Pottia  cavifolia  Var.  S.  gracilis  WILS.  Bry.  br.  93  (1855). 
Tortula  lamellata  LINDB.  de  Tort.  233  (1864).     HOBK.  Syn.  br.  m.  64  (1873). 
Barbula  concava  SCHIMP.  in  Flora  1864,  p.  210.     MILDE  Bry.  siles.  no  (1869). 
Barb,  cavifolia  SCHIMP.  Bry,  eur.  suppl.  fasc.  3 — 4  (1866).      Synops.   2  ed.   193    (1876). 

HUSN.  Mouss.  nord-ouest.  79  (1873). 
Pterigoneurum  lamellatum  JURATZ.  Laubm.  oester.-ung.  97  (1882). 

Autoicous ;  stems  short,  simple,  laxly  caespitose.  Leaves  at  base 
small,  distant,  ovate,  shortly  piliferous,  at  middle  broadly  oval-oblong, 
uppermost  spathulate-ligulate,  slightly  acuminate,  mucronate  with  the 
excurrent  nerve,  all  very  concave,  wings  flattened  towards  margin, 
papillose  at  back  ;  nerve  furnished  on  the  upper  third  in  front,  with  4 
decurrent  lamellae  ;  cells  of  upper  part  and  of  lamellae  minute  quadrate, 
chlorophyllose,  at  base  lax,  hexagono-rectangular.  Perich.  bracts 
narrower ;  caps,  on  a  straight  rufous  pedicel,  erect,  oblongo-cylindra- 
ceous,  castaneous,  with  many  furrows  when  dry  ;  ann.  simple,  lid  with  a 
long  oblique  beak,  teeth  on  a  broadish  clathrate  membrane,  very  slender 
and  fragile,  pale,  slightly  twisted,  generally  breaking  away,  and  remain- 
ing adherent  to  the  inside  of  lid,  spores  smooth.  Male  infl.  basal, 
gemmiform. 

HAB. — On  the  ground  and  on  walls  covered  with  earth.         Fr.  i — 2. 

Near  Pontefract  (Now ell  1853)  !  !  Coombe  Down,  Bath  (Mrs.  Hopkins  1860) !  Kidling- 
ton  and  Osney,  Oxford  (Boswell  1864) !  !  Aldrington,  Sussex  (Davies).  Dublin  (Moore). 
Helmsley,  Yorks.  (Wesley  1878) !  ! 

The  peristome  is  best  seen  through  the  lid  of  the  young  caps.,  but  can 
seldom  be  found  at  maturity,  or  can  only  be  observed  in  small  fragments 
under  the  pressure  of  a  covering  glass.  It  also  differs  from  the  last  by  the 
long  seta,  cylindric  capsule  and  oblique  beaked  lid. 

B.  Aloidese.  Leaves  obtuse,  concave  with  involute  margins,  nerve  very 
broad,  covered  on  upper  side  with  granulose  filaments. 


TORTULACE^E.]  209  [Tortula. 

3.  TORTULA  BREVIROSTRIS  Hk.  Grev. 

Synoicous;  plants  gregarious.  Leaves  Ungulate,  obtuse.  Caps, 
elliptic,  lid  £  its  length,  obliquely  conical.  (T.  XXX,  E.) 

SYN. — Tortula  rigida  SWARTZ  Disp.  muse.  suec.  40,  excl.  syn.  (1799).     SM.  Fl.  brit.  1250  in  obs. 

(1804).  TURN.  Muse.  hib.  44  in  obs.  (1804).  BRID.  Sp.  muse.  I,  245,  p.p.  (1806).  HARTM. 

Skand.  fl.  403  (1820).     WAHLENB.  Fl.  suec.  ii,  763,  excl.  syn.  (1826). 
Tort,  brevirostris  HK.  GREV.  in  BREWST.  Edin.  Journ.  i,  289,  t.   12   (1824).     HK.   TAYL. 

Muse.  br.  2  ed.  53,  Suppl.  t.  2  (1827).     HOOK,  in  DRUM.  Muse.  amer.  bor.  n.  136  (1828). 

AONGST.  in  nov.  act.  soc.  Upsal.  xii,  374  (1844).     HARTM.  op.  c.  5  ed.  (1849).     HOLMES 

in  Grevillea  ii,  169,  t.  23  (1874).     JURATZ.  Laubm.  oester.-ung.  125  (1882). 
Tort,  enervis  HARTM.  op.  c.  2—4  ed.  (baud  HK.  GREV.). 
Barbula  rigida  HEDW.  Sp.  muse.   115,  p.p.  (1801).     LILJEBL.  Svensk.  fl.  3  ed.  536  (1816). 

SCHULTZ  in  nova  act.  acad.  cass.  Leop.  xi,  196,  p.p.  (1823).     BRID.  Bry.  univ.  i,  528,  p.p. 

(1826).    Var.  y.  brevi  rostris  BRID.  op.  c.  i,  suppl.  824  (1827). 
Barbula  brevirostris  (baud  FUERNR.)  BR.  SCHIMP.  Bry.  eur.  fasc.  12 — 15,  p.  16,  t.  2  (1842). 

C.  MUELL.  Synops.  i,  597  (1849).      SCHIMP.  Synops.  163  (1860),  2  ed,  189.      LINDB.  de 

Tort.  233  (1864).      MILDE  Bry.  siles.  no  (1869).      LESQ.  JAMES  Mosses  N.  Amer.  115 

(1884). 

Synoicous ;  very  small,  gemmiform,  gregarious.  Lower  leaves 
roundish,  very  obtuse,  upper  lingulate,  obtuse  erect,  very  concave,  all 
sheathing  at  base,  margins  hyaline,  inflexed  ;  nerve  rather  thin,  covered 
above  with  a  mass  of  short  cellular  threads.  Seta  reddish,  half-inch 
high,  caps,  erect,  elliptico-cylindric,  rufo-fuscous  ;  ann.  broad,  of  3  rows 
of  cells,  separating  spirally,  lid  one-third  length  of  caps,  conic,  rostellate; 
peristome  rufous-purple,  once  contorted. 

HAB. — Walls  in  limestone  districts  ;  v.  rare.     Fr.  8 — 10. 

Old  wall  at  Parson's  Green,  Edinburgh  (D.  Stuart,  1824).  Wall  top  in  Ashwood  Dale 
Buxton  (George,  1873). 

The  little  group  of  aloid  Tortula  are  very  closely  allied,  and  transverse 
sections  of  their  leaves  will  be  found  useful  in  their  discrimination.  There  is 
considerable  difficulty  in  fixing  on  the  species  intended  by  some  of  the  early 
authors,  and  the  name  rigida  has  been  applied  to  all  four,  but,  thanks  to 
Lindberg's  research,  we  are  able  to  get  rid  of  it  altogether,  and  adopt  prior 
names. 

T.  brevirostris  may  be  immediately  recognized  by  its  short  lid  and 
synoicous  inflorescence,  and  to  Mr.  Holmes's  acuteness  we  owe  the  verifi- 
cation of  the  original  specimens  with  the  species  intended  by  the  founders. 

4.  TORTULA  STELLATA  (Schreb.)  Lindb. 

Dioicous ;  leaves  oblong,  obtuse  or  shortly  pointed.  Caps,  elliptic- 
oblong,  straight ;  cal.  covering  half  caps.,  peristome  rather  long  in 
several  spirals.  (T.  XXX,  F.) 

SYN. — Bryum  stellatum  SCHREB.  Spic.  fl.  lips.   80   (1771).     HOFFM.    Deutsch.  fl.   ii,  45, "ex.   el. 

syn.  (1795)- 

Barbula  rigida  SCHULTZ  Nov.  act.  ac.  caes.  leop.  xi,  I,  196,  p.p.  t.  32,  f.  i  (1823).  HEDW. 
Stirp.  cr.  {,65  p.p.  t.  25,  f.  16  (1787);  Sp.  muse.  115  p.p.  (1801).  BRID.  Muse.  rec. 
II,  P.  I,  192  excl.  syn.  t.  3,  f.  19  (1798),  Mant.  88  (1819),  Bry.  univ.  i,  528  (1826).  WEB. 
MOHR  Bot.  Tasch.  212  (1807).  FUERNR.  BRUCH  in  Flora  xii,  P.  2,  599  (1829).  HUEBEN. 
Muse.  germ.  309  excl.  syn.  (1833).  BRUCH  SCHIMP.  Bry.  eur.  fasc.  13 — 15,  p.  13,  t.  i 


TORTULACE^;.]  210  [Tortula. 

(1842).     RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  103  (1848).     C.  MUELL  Synops.  i,  596  (1849). 

SCHJMP.    Syn.    163    (1860),   2    ed.   189.     MILDE    Bry.  siles.   in    (1869).     LESQ. JAMES 

Mosses  n.  amer.  116  (1884). 
Tortula   rlgida   SCHRAD.    Spic.    fl.    germ.  66    (1794).     BRID.    Sp.  muse.  I,  245  excl.  syn. 

(1806).     SWARTZ  Muse.  suec.  40  (1799).     ROTH  Fl.  germ,  iii,  P.  I,  211  (1800).    AONGST. 

in  Nov.  act.  soc.  Upsal.  xii,  373  (1844).  SPRUCE  in  Ann.  mag.  n.  h.  2  ser.  iii,  374  (1849). 

WILS.  Bry.  br.  120,  t.  32  (1855).     DE  NOT.  Muse.  ital.  I,  17,  t.  3  (1862) ;  Epil.  bri.  ital. 

529    (1869).     BERK.   Handb.    Br.   m.    259   (1863).      JURATZ.    Laubm.  oester.-ung.   125 

(1882). 
Tort,  enervis  HK.  GREV.  in  BREWST.  Ed.  journ.  i,  288  (1824).     HK.  TAYL.  Muse.  br.  2  ed. 

52  excl.  syn.  Suppl.  t.  2  (1827).     HARTM.  Skand.  fl.  5 — 8  edd. 
Tort,  breviroslris   HK.  GREV.  op.   c.  289  p.p.     HK.  TAYL.  op.  c.  53  (nee  diagn.).     GREV. 

Scott,  cr.  fl.  vi,  t.  331  (1829). 

Desmatodon  rigidus  MITT.  Journ.  Lin.  soc.  i,  suppl.  38  (1859). 

Tortula  stellata  LINDB.  de  Tort.  233  (1864).     HOBK.  Syn.  br.  m.  63  (1873). 

Dioicous  ;  short,  simple,  gregarious  or  laxly  csespitulose.  Leaves 
from  an  erect  sheathing  base,  patulous,  lower  small  ovate-oblong, 
ferruginous,  upper  twice  as  long,  deep  green,  oblong,  muticous  or 
apiculate,  margin  inflexed ;  nerve  broad,  covered  on  surface  with  2 — 5 
jointed  threads.  Cal.  straw-coloured,  long-beaked,  reaching  to  middle 
of  caps.  Seta  reddish  brown,  caps,  erect,  ovato-elliptic  or  subcylindric, 
reddish-brown  ;  lid  long  beaked,  crenulate  at  base,  ann.  broad,  revoluble ; 
teeth  of  per.  longer,  purplish,  twice  convolute  ;  spores  smooth.  Male 
plants  very  minute,  bracts  three,  broad,  ovate,  obsoletely  nerved. 
HAB. — Mud  capped  walls  in  calcareous  districts.  Fr.  9 — 3. 

Near  York  (Spruce).  Newtimber,  Sussex  (Mitten)  !  Near  Ilkley  (Baker,  1859)  !  Oxford 
(Boswell,  1860)!!  Mottram,  Cheshire  (Whitehead,  1860)  !  Blackburn  and  Burnley 
(Hunt,  186.7)  '  Camborne,  Cornwall  (Curnow).  Craiglockhart  and  Crookston  Edin- 
burgh. Cork  and  Dublin  (Moore).  Pontefract  and  Knottingley  (Dr.  Wood).  Gloucester 
(Stark).  Peak  forest  (Whitehead,  1871)  !  Crambeck,  Malton,  Hovingham,  and  Scalby 
(Spruce,  1843).  Yate,  Bristol  (Thwaites).  Bowness. 

This  species  is  readily  recognised  by  the  elliptic  capsule,  and  the 
calyptra  reaching  halfway  down.  In  dry  seasons  the  upper  leaves  some- 
times run  out  into  a  short  hyaline  point,  which  even  extends  into  a  long 
hair — the  var.  piligera  DE  NOT. 

5.  TORTULA  ERIC-3EFOLIA  (Neck.)  Lindb. 

Dioicous ;  short.  Leaves  patulous,  ligulato-lanceolate,  obtuse, 
incurved  at  tip.  Caps,  erect,  cylindric  ;  annulus  simple,  subpersistent, 
cal.  covering  the  lid  only ;  per.  short,  once  twisted.  (T.  XXX,  G.) 

SYN.— Bryum  acaulon,  Ericce  tenuifolio}  Ger.  folio   DILL.  Hist  muse.  388,  t.  49,  f.  55  (I741)  et 
Herbar. 

Bryum  ericcefolium  NECKER  in  Act.  ac.  Theod.-pal.  ii,  451  (1/70);  Meth.  muse.  193  (1771). 

Barbula  rigida  HEDW.  St.  crypt,  i,  65  p.p.  t.  25  excl.  fig.  16  (1787). 

Barbula  brevirostris  FUERNR,  et  BRUCH  in   Flora  xij,  P.  II,  599  (1829).     HUEBEN.  Muse. 

germ.  308,  excl.  syn.  (1833). 

Tortula  alo'ides  DE  NOT.  in  Mem.  ac.  Torin.  XL,  306  p.p.  et  Syllab.  177,  p.p.  (1838). 
Barbula  ambigua  BR.  SCHIMP.  Bry.  eur.  f.  13—15,  Mon.  14,  t.  2  (1843).  RABENH.  Deutsch. 

kr.  fl.  ii,  S.  3,  104  (1848).     SCHIMP.  Synops.  164  (1860),  2  ed.  190.     C.  MUELL,  Synops. 

i,  596  (1849).     MILDE  Bry.  siles.  in  (1869).     LESQ.  JAMES  Mosses  n.  amer.  116  (1884). 


TORTULACE.E.]  211  [Tortilla. 

Tortula  ambigna  AONGST.  in  nov.  act.  soc.  Upsal.  xii,  376  (1844).  SPRUCE  in  HOOK. 
Journ.  Bot.  iv,  igi  (1845),  et  Ann.  mag.  n.  h.  2  ser.  iii,  374  (1849).  HARTM.  Skand.  fl. 
5—8  edd.  WILS.  tfry.  br.  120,  t.  42  (1855).  DE  NOT.  Muse.  ital.  I,  16,  t.  2  (1862)  ; 
Epil.  bri.  ital.  529  (1869).  BERK.  Handb.  br.  m.  259  (18^3).  LINDB.  de  Tortul.  234 
(1864).  HOBK.  Syn.  br.  m.  64  (1873).  JURATZ.  Laubm.  oester.-ung.  126  (1882). 

Dioicous  ;  short,  laxly  caaspitose.  Leaves  longer,  horizontal,  ex- 
panded, from  an  ovate  base,  lineal-lane.,  incurved  at  tip,  arcuate  when 
dry,  reddish  at  back.  Seta  red  below,  pale  above.  Cal.  short,  reaching 
just  to  lid  ;  caps,  erect,  cylindraceous,  brown,  sulcate  when  dry,  ann. 
narrow,  persistent,  lid  elongato-conic,  entire  at  margin ;  teeth  of  per. 
longer,  red,  once  twisted,  when  dry  arcuato-incurved;  spores  smooth. 

HAB. — Walls  and  marly  banks.         Fr.  n — 3. 

Welburn,  Malton,  and  near  York  (Spruce,  1847).  Warrington,  Clitheroe,  and  Newton 
Viaduct  (Wilson,  1848)!!  Pontefract  and  Knottingley  (Nowell).  Bristol  (Thwaites). 
Blackburn  and  Burnley  (Hunt)  \  !  Dublin  and  Cork  (Moore,  1874)  ! !  Sussex  (Mitten). 
Witney  and  Oxford  (Bosivell)  !  !  Bovvness  (Barnes)  !  Beaumaris  (Wilson,  1856)!! 
Plymouth  (Holmes) !  Wadebridge  and  Newlyn  cliff,  Cornwall  (Curnow).  Bearley, 
Warwick  (Bagnall).  Reigate  (Holmes,  1873)!!  Wetherby,  Yorks.  (Wesley) ! ! 

Often  growing  with  T.  aloides,  but  easily  known  by  the  cucullate  tips  of 
the  leaves,  the  erect  cylindric  capsule  and  the  bright  red  incurved  teeth. 

6.  TORTULA  ALOIDES  (Koch)  De  Not. 

Dioicous  ;  short.  Leaves  long,  linear-lanceolate,  acuminate,  acute. 
Caps,  cylindraceous,  inclined,  subarcuate;  cal.  reaching  a  little  below 
the  lid,  per.  scarce  twisted,  arcuato-incurved  when  dry.  (T.  XXXI,  A.) 

SYN. — Bryum  rigidum  SM.  Eng.  Bot.  t.  180  (1794)- 

Tortula  rigida  SM.  Fl.  brit.   1249  (1804).      HOOK.   TAYL.   Muse.  br.  30  p.p.  t.  12  (1818). 

HOOK.  GREV.  in  BREWST.  Edin.  Journ.  i,  289  p.p.  (1824).     WILS.  in  Eng.  Bot.  Suppl.  t. 

2759  (1834).     HARTM.  Sk.  fl.  4—8  edd. 
Trichostomum  aloides  KOCH  MSS.      SCHULTZ  Recens.  Barb.  197  (1823).     BRID.  Bry.  univ. 

i,  Suppl.  816  (1827).     WALLR.  Fl.  crypt,  germ,  i,  172. 
Barbula  aloides  FUERNR.  BRUCH  in  Flora  XII,  P.  II,  598  (1829).      HUEBEN.  Muse.  germ. 

307  (1833).     BR.  SCHIMP.  Bry.  eur.  f.  13 — 15,  p.  15,  t.  2  (1842).      C.  MUELL.  Synops.  i, 

596  (1849).     RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  104  (1848).    SCHIMP.  Synops.  165  (1860)  ; 

2  ed.  191.     MILDE  Bry.  siles.  in  (1869).     HUSN.  Mouss.  nord-ouest.  78  (1873). 

Tortula  aloides  DE  NOT.  Syllab.  muse.  177  (1838)  ;  Muse.  ital.  I,  15,  t.  i  (1862) ;  Epil.  bri. 
ital.  528  (1869).  BERK.  Hand.  br.  m.  259  (1863).  LINDB.  de  Tort.  235  (1864).  HOBK. 
Syr.  br.  m.  64  (1873).  JURATZ.  Laubm.  oester.-ung.  126  (1882). 

Dioicous  ;  short,  dull  green.  Leaves  erecto-patent,  longer,  rigid, 
linear-lanceolate,  acuminate,  acute,  nerve  incrassate  in  the  middle, 
convex  at  back,  often  reddish.  Caps,  from  curving  of  the  seta,  cernuous 
or  subhorizontal,  cylindraceous,  subarcuate,  rufo-fuscous  on  upper  side, 
pale  fuscous  beneath  ;  cal.  reaching  a  little  beyond  lid,  ann.  of  small 
cells,  long  persistent,  lid  rostrate,  acute  ;  teeth  of  per.  very  slender, 
pale  red,  simply  contorted,  when  dry  arcuato-incurved  with  the  points 
assurgent ;  spores  larger,  smooth. 
HAB. — Clay  banks  and  wall  tops.  Fr.  n — 2. 

Dublin,  Mayo,  Sligo  and  Galway  (Moore).  Ripley,  Yorks.  (Baker  1856) !  Islip  and 
Shotover,  Oxford  (Boswell  1858)  !  !  Beaumaris  and  Bangor  (Wilson  1863) !  !  Black- 


TORTULACE^E.]  212  [Tortilla. 

burn  and  Marple  (Hunt  1863)  !  Ltvens  (Barnes  1867)  !  Sussex  Downs  (Davies)  \  ! 
Crambeck  and  Welburn,  Yorks.  (Spruce  1843)!  Newton  Viaduct  (Wilson,  18.47)!! 
Masham  (Mudd).  Thirsk  and  Byland  Abbey  (Baker).  Hovingham,  Ingleboro  and 
Settle,  Yorks.  (Hobkirk).  Greenheugh,  Burnmouth  and  Wooler  (Hardy}.  Bearley, 
Red  Hill  and  Maxtoke,  Warwick  (Bagnall).  Ashwood  Dale,  Derby.  (Holt  1880)  !  ! 
Common  in  Devon  and  Cornwall. 

C.  Desmatodon.  Nerve  free  from  appendages ;  leaves  soft,  highly 
chlorophyllose. 

7.  TORTULA   ATROVIRENS    (Sm.)    Lindb. 

Autoicous ;  dwarf,  csespitulose.  Leaves  spreading,  oblong,  sub- 
spathulate,  concave,  apiculate,  with  reflexed  margins ;  nerve  thickened 
anteriorly  above  the  middle,  slightly  excurrent.  Caps,  oval,  lid 
obliquely  rostellate,  teeth  of  per.  unequal,  short,  obliquate,  not  con- 
torted. (T.  XXXI,  B.) 

SYN. — Trichostomum  convolutum   BRID.   Sp.  muse.  I,  232   (1806),  Mant.   83  (1819),  Bry.  univ.  i, 
492  (1826).     C.  MUELL.  Synops.  i,  590  (1849).     SCHIMP.  Synops.    153  (1860).     BERK. 
Handb.  br.  m.  261,  t.  22,  f.  8  (1863).     HUSN.  Mouss.  nord.-ouest.  75  (1873). 
Grimmia  atrovirens  SM.  Eng.  Bot.  t.  2015  (1809). 

Didymodon  nervosus  HOOK.  TAYL.  Muse.  brit.  66,  t.   20  (1818).     BRID.  Bry.  univ.  i,  516. 

GRAY  Nat.  arr.  br.  pi.  i,  742  (1821).      HOOK.  Br.  fl.  ii,  28  (1833).     MACK.   Fl.  hibern.  P, 

2,  17  (1836). 
Trichostomum  nervosum  FUERNR.  in  Flora  xii,  P.  II,  Erganz.  32  (1829).      HUEBEN.  Muse. 

germ.  295  (1833). 
Desmatodon  nervosus  BR.  SCHIMP.   Bry.  eur.  f.   18 — 20,  Mon.  6,  t.  3   (1843).     RABENH. 

Deutsch.  kr.  fl.  ii,  S.  3,  100  (1848).     SPRUCE  in  Ann.   mag.  n.  h.  2   ser.  iii,  374   (1849). 

SCHIMP.  Coroll.  26  (1855).     WILS.  Bry.  brit.  103,  t.  20  (1855).     DE  NOT.  Epil.  bri.  ital. 

576  (1869).     LESQ.  JAMES  Mosses  N.  Amer.  113  (1884). 
Tortula  atrovirens  LINDB.  de  Tort.  236  (1864).  HOBK.  Syn.  br.  m.  65  (1873). 
Barbula  nervosa  MILDE  Bry.  siles.  112  (1869). 
Barbula  atrovirens  SCHIMP.  Synops,  2  ed.  194  (1876;. 
Desmatodon  atrovirens  JURATZ.  Laubm.  oester.-ung.  136  (1882). 

Autoicous;  dwarf,  csespitulose  or  subpulvinate,  dingy  green. 
Leaves  densely  imbricated,  spirally  convolute  when  dry,  erecto-patent 
when  moist,  oval-oblong,  concave,  nerve  yellowish,  thickened  above 
anteriorly,  excurrent  in  a  short  acute  mucro,  margin  entire,  revolute, 
cells  at  base  lax  shortly  rectangular  with  two  marginal  rows  quadrate, 
above  minute  quadrate,  opake  very  finely  papillose.  Caps,  on  a  short 
reddish  seta,  erect,  oval,  fuscous,  exannulate  ;  lid  half  length  of  caps., 
conic  obliquely  rostellate  ;  teeth  of  per.  on  a  pale  exserted  basal  mem- 
brane, irregular,  unequal,  papillose,  rufo-ferruginous,  erect  and  straight 
when  dry,  slightly  twisted  obliquely  when  wet ;  spores  smooth.  Male 
infl.  minute  gemmaceous,  at  base  of  female,  bracts  ovato-lanc.,  faintly 
nerved. 
HAB. — Dry  banks  and  old  walls,  especially  near  the  sea.  Fr.  3 — 5. 

Killiney  Bog,  Dublin  (Taylor).  Cork  (Carroll).  Bray  Head,  Wicklow  and  Youghal 
(Sargint).  Hastings  (Jenner)  !  !  Dawlish  (Holmes).  Seaton  Cliffs,  Cornwall  (Brent). 
Truro  (Tellam).  Drayton  Bushes,  Warwick  (Bagnall).  Old  Cambus  and  Eyemouth, 
Northumberland  (Hardy).  Anglesea  (Wilson).  Barmouth  (Holt  1882)  !  ! 


ToRTULACE,E.]  213  [Tortilla. 

The  tufts  of  this  little  moss  are  generally  filled  with  fine  sand  or  mud, 
so  that  the  lower  part  becomes  brown  and  dead  ;  the  peristome  when  moist 
shows  a  decided  tendency  to  become  twisted,  though  straight  when  dry. 

8.  TORTULA  CUNEIFOLIA  (Dicks.)  Roth. 

Autoicous  ;  densely  gregarious,  pellucid  green.  Leaves  rosulate 
above,  obovate-spathulate,  smooth  ;  nerve  thin  vanishing  or  excurrent ; 
cells  lax,  quadrate.  Caps,  erect,  oblong,  lid  conic,  oblique  ;  peristome 
closely  contorted.  (T.  XXXI,  C.) 

SYN. — Bryum  humile,  pills  carens  viride  et  pellucidum.      DILL.    Hist.    muse.  356,  t.  45,  f.   15 

(1741),  et  Herbar. 
Bryum  murale  Var.  ft,  HUDS.  Fl.  angl.  406  (1762). 

Bryum  cuneifolium  DICKS.  PI.  crypt.  Ill,  7  (1793).  HOFFM.  Deutsch.  fl.  ii,  45  e  synon. 
(1795).  HULL  Br.  fl.  P.  II,  256  (1799)- 

Tortula  cuneifolia  ROTH  Tent.  fl.  germ,  iii,  P.  I,  213  (1800).  SM.  Fl.  brit.  iii,  1257  (1804); 
Eng.  Bot.  t.  1510.  TURN.  Muse.  hib.  51  p.p.  (1804).  HOOK.  TAYL.  Muse.  br.  31,  t.  12 
(1818).  GRAY  Nat.  arr.  br.  pi.  i,  723  (1821).  HOOK.  GREV.  in  BREWST.  Ed.  Journ.  i, 
297  (1824).  MONT,  in  Arch.  Bot.  i,  137  (1832).  HOOK.  Br.  fl.  ii,  46  (1833).  MACK. 
Fl.  hibern.  P.  2,  26  (1836).  DE  NOT.  in  Mem.  ac.  Torin.  xl,  296  (1838),  Syllab.  174 
(1838),  Muse.  ital.  I,  28,  t.  10  (1862),  Epil.  bri.  ital.  534  (1869).  SPRUCE  in  Ann.  mag. 
n.  h.  2  ser.  iii,  375  (1849).  WILS.  Bry.  Brit.  128,  t.  12  (1855).  BERK.  Handb.  br.  m. 
254  (1863).  LINDB.  de  Tort.  237  (1864).  HOBK.  Syn.  br.  m.  65  (1873). 

Tortula  spathulcefolia  DE  NOT.  op.  c.  297,  et  Syllab.  174. 

Barbula  Dicksoniana  SCHULTZ  Recens.  Barb,  et  Syntr,  224,  t.  34,  f.  33  (1823).     HUEBEN. 

Muse.  germ.  311  (1833). 
Barbula  cuneifolia   BRID.  Bry.  univ.  i,   549  excl.   syn.  (1826).       BR.  SCHIMP.  Bry.  eur.  f. 

13 — 15,  Mon.  31,  t.  17  (1842).      C.  MUELL.  Synops.  i,  628  (1849).      BERTOL.  Fl.  ital. 

crypt.  209.    SCHIMP.  Synops.  182  (1860),  2  ed.  198.  HUSN.  Mouss.  nord-ouest.  84(1873). 

LESQ.  JAMES  Mosses  N.  Amer.  117  (1884). 
Desmatodon  cuneifolius  JURATZ.  Laubm.  oester.-ung.  133  (1882). 

Autoicous  ;  laxly  caespitose  or  gregarious,  bright  green.  Lower 
leaves  remote  broadly  ovate,  shortly  acuminate,  upper  crowded  in  a 
patulous  rosette,  obovate-spathulate,  smooth,  soft,  thin,  often  com- 
plicate-concave  ;  nerve  thin,  vanishing  below  apex  or  excurrent  in  a 
mucro  or  longer  point,  margin  erect,  more  or  less  flexuose,  cells  at  base 
elongated,  very  lax  and  pellucid,  above  roundish-quadrate,  soft  and 
diaphanous,  with  granular  chlorophyl.  Caps,  on  a  long  purple  straight 
seta,  erect  oblong  or  subcylindric,  regular  or  very  slightly  incurved, 
olive  brown,  ann.  simple,  persistent,  lid  £  length  of  caps.,  conic  ;  per. 
on  a  broadish  basal  membrane,  reddish,  much  contorted.  Male  infl. 
near  the  female,  gemmaceous,  bracts  broadly  ovate,  obtuse. 
HAB. — Banks  near  the  sea,  and  edge  of  ditches.  Fr.  3 — 4. 

Devon  and  Cornwall,  frequent.  Scotland  (Dickson).  Yarmouth  (Turner).  Tunbridge 
wells  (Forster).  Hastings  (Jenner,  1841)  !  Shere  (Dr.  Capron,  1869)  !  !  Grosty  Hill, 
Halesowen  (Bagnall,  1872)!  Garth  Ferry,  Anglesea  (Wilson)\\  Bantry  (Miss 
Hutchins).  Cork  (Wilson).  Howth  (Orr).  Littlehampton  and  Maresfield  (Mitten). 
Torquay  and  Torpoint  (Hooker).  Plymouth  (Holmes)  !  !  Budleigh  Salterton  (Dickie). 

This  moss  belongs  more  especially  to  the  Mediterranean  area  of 
distribution,  and  hence  with  us  it  occurs  most  frequently  in  the  south  of 


TORTULACE.E.]  214  [Tortula. 

Ireland,  and  on  the  coast  of  Devon,  Cornwall  and  Dorset.  It  is  remarkable 
for  the  soft  texture  of  the  leaves,  which  when  old,  lose  their  chlorophyl  and 
become  entirely  diaphanous.  Dickson's  specimens  were  adulterated  with 
T.  muralis  Var.  y.  and  thus  led  to  some  confusion  in  early  continental  writers. 


9.  TORTULA   VAHLII  (Schultz)    Wils. 

Autoicous  ;  short,  resembling  T.  muralis.  Leaves  oblong-cuneate, 
diaphanous,  not  revolute  at  margin,  nerve  excurrent  in  a  green  arista. 
Caps,  cylindraceous,  lid  conico-rostellate,  per.  with  a  broad  basal 
membrane.  (T.  XXXI,  D.) 

SYN. — Barbula  Vahliana  SCHULTZ  Recens.  Barb,  et  Syntr.  222,  t.  34,  f.  31  (1823).     BRID.  Bry. 

univ.  i,  545  (1826).     BR.  SCHIMP.  Bry.  eur.  f.  13 — 15,  Mon.  33,  t.  18  (1842).     C.  MUELL. 

Synops.   i,  626  (1849).     SCHIMP.  Synops.   183  (1860),  2  ed.   199  (1876).     LESQ.  JAMES 

Mosses  N.  Amer.  117  (1884). 
Tortula  muralis  a.  HOOK.  GREV.  in  BREWST.  Edin.  Journ.  i,  292  p.p.  (1824).      ARNOTT 

in  Mem.  soc.  d'hist.  nat.  Paris,  ii,  285  p.p.  (1825). 

Tortula  extenuata  DE  NOT.  in  Mem.  ac.  Torin.  xl,  299  (1838),  et  Syllab.  174. 
Tortula  Vahliana  WILS.  Bry.  Brit.  129  (1855).     DE  NOT.  Muse.  ital.  I,  27,  t.  9  (1862) ; 

Epil.  bri.  ital.  534  (1869).     LINDB.  de  Tort.  237  (1864).     HOBK.  Syn.  br.  m.  65  (1873). 

Autoicous ;  short,  pale  green,  gregarious  or  csespitulose.  Leaves 
densely  crowded,  erecto-patent  and  flaccid  when  moist,  appressed  or 
twisting  when  dry,  papillose  at  back,  lower  small,  ovate,  mucronate, 
upper  oblong-lingulate,  channelled,  subundulate,  apex  obtuse  or  some- 
what pointed,  shortly  piliformi-aristate  with  the  excurrent  nerve,  margin 
more  or  less  revolute  ;  cells  at  base  hexagono-rectangular,  hyaline,  upper 
small,  obtusely  angular,  a  single  row  at  margin  larger,  rounded,  yellowish, 
with  projecting  papillae.  Caps,  on  a  pale  purple  seta,  narrowly  elongato- 
cylindric,  slightly  incurved,  brown  ;  lid  elongato-conical,  one-third 
length  of  caps,  pale  red;  annulus  broad,  compound ;  per.  contorted, 
orange,  on  a  very  short  obscurely  tessellated  basal  membrane. 

Male  infl.  on  a  short  lateral  branch,  bracts  ovate,  concave,  obtuse 
or  hair  pointed. 
HAB. — Damp  clay  soil  by  roadsides  and  ditches  ;  rare.     Fr.  4 — 5. 

Angmering,  Sussex  (Davies  1863)  ! !  Between  Mayford  heath  and  Pirbright  common, 
Woking  (S/ieppard  and  Westell  1871)  ! !  Cherryhinton,  Cambridge  (H.  N.  Dixon 
1882) ! ! 

Var  (3.  subflaccida  Lindb, 

Plants  smaller,  dull  green  ;  leaves  more  opaque,  shorter,  flaccid,  with 
plane  margins,  the  nerve  only  excurrent  in  a  short  mucro  ;  capsule  and  lid 
shorter. 

SYN. — Tortula  muralis  y8.     DRUMMOND  Mss. 

T.  oblongifolia  WILS.  Bry.  brit.  129,  t.  43.     BERK.  Handb.  br.  m.  254. 
Barbula  oblongifolia  SCHIMP.  Coroll.  141  et  Synops.  185. 
Tortula  Vahlii  Var.  /?.  subflaccida  LINDB.  op.  c.  238 


TORTULACE.E.]  215  [Tortula. 

HAB. — Moist  banks. 

Near  Dublin    (Drummond   1829) !     Bray   and  Glasnevin,   Dublin    (Moore    1860)  ! !     Near 
Blanchardstown  (Orr  1867) ! 

This  and  the  next  throe  species  are  closely  allied  in  habit  and  form  of 
leaf,  but  may  each  be  easily  recognized  with  a  little  care.  T.  Vahlii  comes 
nearest  to  T.  muralis,  but  is  distinguished  by  its  cylindraceous  capsules,  and 
absence  of  the  strongly  recurved  margins  to  the  leaves. 

The  typical  form,  and  also  T.  cuneifolia,  vary  considerably  in  the  form  of 
the  leaf  as  well  as  in  the  extent  of  the  nerve-point,  and  in  this  country  it 
appears  to  prefer  calcareous  soil. 


10.  TORTULA  MARGIN  AT  A  (Br.  Sch.)  Spruce. 

Dioicous  ;  short.  Leaves  linear-oblongate,  cuspidate  with  the 
excurrent  nerve,  the  margin  with  a  thickened  border  of  narrow  cells. 
Caps,  oblong,  erect,  lid  conic  acuminate,  peristome  closely  contorted. 
(T.  XXXI,  E.) 

SYN. — Bryum  tegular e  humile,  pilosum  et  incanum,  Var.  non  pilosa  DILL.  Hist.  Muse.  356,  t.  45, 

fig.  14,  F,  G.  (1741)  et  Herbar. 
Tortula  caspitosa  HOOK.  GREV.  in   BREWST.  Ed.  Jour,  i,   296  (1824).     DE  NOT.  in  Mem. 

ac.  Torin.  xl,  298  (1838),  et  Syllab.  174  (1838). 
Barbula  caspitosa  BRUCH  MSS.  (non  SCHWAEGR.) 
Barbula  marginata  BR.  SCH.  Bry.  eur.  fasc.  13 — 15,  Mon.  33,  t.  19   (1842).     C.  MUELL. 

Synops.  i,  629  (1849).     SCHIMP.  Synops.  183  (1860),  2  ed.  199.     MILDE   Bry.  siles.   114 

(1869).      HUSN.  Mouss.   nord-ouest  85  (1873).     LESQ.  JAMES  Mosses  N.  Amer.    118 

(1884). 
Tortula  marginata  SPRUCE  in  HOOK.  Lond.  J.  iv,  192  (1845),  et  in  Ann.  mag.  n.  h.  2  ser. 

iii,  375    (J849).     WILS.   Bry.  brit.   131,  t.  43   (1855).     DE   NOT.  Muse.  ital.  I,  24,  t.  7 

(1862),  Epil.  bri.  ital.  532  (1869).      BERK.  Handb.  br.   m.  253  (1863).     LINDB.  de  Tort. 

238  (1864).     HOBK.  Syn.  br.  m.  65  (1873). 

Desmatodon  marginatus  MITT.  Journ.   Linn.  soc.  i,   Suppl.  38  (1859).     JURATZ.  Laubm. 
oesterr.-ung.  132  (1882). 

Tortula  acuminata  MITT.  Journ.  Linn.  soc.  Bot.  xii,  167  (1869). 

Dioicous  ;  very  short,  densely  gregarious.  Leaves  soft,  pale  green, 
erecto-patent,  somewhat  twisted  when  dry,  sublingulate-oblong  and 
narrowly  subspathulate,  apex  obtuse  or  slightly  acuminate,  shortly 
piliformi-cuspidate  with  the  yellow  excurrent  nerve  ;  concave,  carinate 
towards  apex,  margin  erect  with  a  narrow  border  of  a  double  layer 
of  2 — 3  series  of  narrowly  rectang.  pachydermous  yellowish  cells,  upper 
cells  minutely  papillose,  hexagono-quadrate,  opake  and  indistinct, 
basal  smooth,  hexagono-rectangular.  Caps,  on  a  longish  purple  seta, 
leptodermous,  ovate-oblong  or  subcylindric,  brown  ;  lid  pale  red,  conic 
elongated,  oblique,  half  length  of  caps.,  annulus  simple  rather  broad  ; 
per.  on  a  short  pale  basal  membrane,  light  red. 

Male  plants  very  small,  simple ;  infl.   gemmaceous,  bracts  ovato- 
lanceolate. 
HAB, — Sandstone  walls  and  by  roadsides ;  not  common.         Fr.  4 — 5. 


TORTULACE.E.]  216  [Tortula. 

Norfolk  (Eagle).  Castle  Howard  and  Coneysthorpe  (Spruce  1843)  !  Hurstpierpoint 
(Mitten  1847) !  Vale  bridge,  Sussex  (Davics  1855)  !  Hincksey  and  Great  Tew,  Oxon 
(Boswell  1861).  Budleigh  Salterton  (Dickie).  Ashley  mill  and  Green  lane,  Bowdon 
(Hunt  1870) !  !  Kirkham  Abbey  (Hunt  1871)  !  !  Shere,  Surrey  (C apron  1879)  !  ! 
Tunbridge  Wells  (Jenner  1846)!  Shanklin  (Salwey  1857)!  Appleton  lane  (Wilson 
1854) ! !  Pope's  walk,  Bath,  <J  (Mrs.  Hopkins  1861)  !  Button  park,  Warwick 
(Bagnall)  ! !  Towton,  Yorks.  (West  1881) !  I 

Resembling  T.  muralis  but  more  slender,  the  leaves  with  a  scarcely 
revolute  margin,  thickened  border  and  shorter  points  ;  they  vary  in  length 
and  width.  All  the  specimens  I  have  examined  have  been  certainly  dioicous. 

n.  TORTULA  CANESCENS  Mont. 

Autoicous ;  short,  hoary  when  dry.  Leaves  oblongo-lanceolate, 
piliferous,  scarcely  revolute  at  margin.  Caps,  erect,  elliptic  ;  lid  conic  ; 
peristome  tubular  at  base  for  nearly  half  its  length.  (T.  XXXI,  F.) 

SYN. — Tortula  canescens  MONTAGNE  in  Arch.  Bot.  i,  133,  t.  4,  fig.  3  (1832),  et  Sylloge  crypt.  40 
(1856).  DE  NOT.  in  Mem.  ac.  Torin.  xl,  300  (1838),  Syllab.  175  (1838),  Muse.  ital.  I, 
30,  t.  ii  (1862),  et  Epil.  bri.  ital.  535  (1869).  SPRUCE  in  Ann.  mag.  n.  h.  2  ser.  iii,  375 
(1849).  WILS.  Bry.  brit.  130,  t.  43  (1855).  BERK.  Handb.  br.  m.  253  (1863).  LINDB. 
de  Tort.  238  (1864).  HOBK.  Syn.  br.  m.  66  (1873). 

Barbula  canescens  BRUCH  MSS.  BR.  SCHIMP.  Bry.  eur.  fasc.  13  —  15,  Mon.  34,  t.  19  (1842). 
RABENH.  Deutsch.  kr.  fl.  ii,  s.  3,  no  (1848).  C.  MUELL.  Synops.  i,  625  (1849). 
SCHIMP.  Synops.  184  (1860),  2  ed.  201.  BERTOL.  Fl.  ital.  cr.  210  (1858).  MILDE  Bry. 
siles.  113  (1869).  HUSN.  Mouss.  nord.-ouest.  85  (1873). 

Desmatodon  canescens  JURATZ.  Laubm.  oesterr.-ung.  133  (1882). 

Autoicous  ;  short,  gregariously  caespitose,  bright  green  when  moist, 
hoary  when  dry.  Leaves  patulous,  oblong  and  oblong-ligulate,  concave, 
obtuse  at  apex,  very  minutely  papillose  above,  margin  very  slightly 
revolute,  nerve  excurrent  in  a  long  hair;  cells  at  base  pellucid, 
elongato-rectangular,  the  rest  quadrate-hexagonal.  Caps,  on  a  shortish 
red  seta,  leptodermous,  erect,  elongato-elliptic,  reddish  brown,  lid 
conic,  elongated,  half  length  of  caps.,  annulus  rather  broad,  breaking 
up ;  per.  with  the  basal  membrane  forming  a  pale  red  tessellated  tube 
for  nearly  half  its  length,  teeth  red,  contorted. 

Male  infl.  gemmiform,  on  a  slender  branch,  bracts  ovate-oblong. 
HAB.—  Channel  coast,  very  rare.         Fr.  5. 

On  loose  sandy  earth,  on  face  of  chalk  cliffs  near  the  Lover's  Seat,  Hastings  (Jenner 
1844) !  ! 

Quite  a  Mediterranean  species  and  resembling  T.  muralis,  but  with 
broader  leaves  of  laxer  texture,  slightly  acuminate  at  points  and  the  margins 
much  less  recurved  ;  it  is  readily  distinguished  from  it  by  the  tube  of  the 
peristome. 

12.  TORTULA  MURALIS  (L.)  Hedw. 

Autoicous ;  compactly  tufted,  bright  green  and  hoary.  Leaves 
spathulate-oblong,  obtuse,  the  margin  strongly  revolute,  nerve  excurrent 
in  a  hyaline  hair.  Caps,  oblongo-cylindric,  lid  conic  rostellate ; 
peristome  with  a  very  narrow  basal  membrane.  (T.  XXXI,  G.) 


TORTULACE^.]  217  [Tortilla. 

Svu.—Muscus  capillaceus  minor,  capitulis  erectis    vitlgatissimus   RAY   Synops.  2  ed.  28,  n.  1. 

(1696). 
Muscus  trichoides  parvus,  capitula  creberrima  oblonga  erecta   habitiora,   per    siccitatem 

atrorubentla  proditcens  Vernon.  RAY  op.  c.  33,  n.  30. 
Bryum    minus,    erectis    minus  falcatis    capitulis,   foliis    latiusculis    congestis   in  pilum 

canescentem  desinentibus  DILL,  in  RAY.  Syn.  3  ed.  94  (1724). 
Bryum   tegular e  humile  pilosum  et  incanum  DILL.   Hist.    muse.  355,  t.  45,  f.   14  A — E 

(1741),  et  Herbar. 
Bryum  murale  L.  Sp.  pi.  ii,  1117  (1753).     Fl.  suec.  2  ed.   993  (1755)-     HUDS.   Fl.  angl. 

406    (1762).     WEISS  Crypt.  Goett.   192   (1770).     Neck.  Meth.   muse.    197   (1771),  Del. 

Gallo-belg.  ii,  458.     WITHER.   Bot.  arr.  br.  veg.  ii,  673   (1776).     LIGHTF.   Fl.  scot,  ii, 

720  (1777)-     WEBER  Spic.  fl.  goett.  100  (1778).     RELHAN  Fl,  cant.  403  (1785).    HOFFM. 

Deutsch.  fl.  ii,  45  (1795).    ABBOT  Fl.  bedf.  240  (1798).     HULL  Brit.  fl.  II,  256  (1799). 
Mnium  murale  SWARTZ  Meth.  muse.  27  (1781). 
Tortula  muralis  HEDVV.  Fund.  II,  92  (1782),  Sp.  muse.  123.     SIBTH.  Fl.  oxon.  284  (1794). 

BRID.  Muse.  rec.    II,   P.   I,  186,  t.  3,  f.   20  (1798),   Sp.  muse.  I,  250  (1806).     SWARTZ 

Muse.   suec.   39   (1799).      ROTH    Fl.   germ,   iii,   P.   I,  203    (1800).      ROEHL.   Moosg. 

deutsch.    400    (1800).     SMITH    Fl.   bnt.    1256   (1804)  5    Eng.    Bot.    t.    2033.      TURN. 

Muse.  hib.  50  (1804).     P.  BEAUV.  Prodr.  92  (1805).     SCHULTZ  Fl.  starg.  304  (1806). 

WAHLENB.   Fl.   carp.  238  (1814),  Fl.  upsal.  375   (1820).     HOOK.  TAYL.  muse.  brit.  30, 

t.  12  (1818).     HOOK.   Fl.  scot.  P.   2,   127  (1821),  Br.  fl.  ii,  44  (1833).     GRAY  Nat.  arr. 

br.  pi.  i,  722  (1821).     MACK.  Fl.  hib.   P.  2,  25  (1836).     DE  NOT.  in   Mem.  ace.  Torin. 

xl,  301  (1838),  Syllab.   175  (1838),   Muse.  ital.   I,  31,  t.    12  (1862),  Epil.  bri.  ital.   536 

(1869).     WILS.  Bry.  br.  130,   t.   12    (1855).     BERK.  Handb.  br.  m.  253,  t.  22,  f.  3  (1863). 

LINDB.  de  Tort.  239  (1864).     HOBK.  Syn.  br.  m.  66  (1873). 
Barbula  muralis  TIMM  Fl.  megap.   240  (1788).      WEB.  MOHR  Bot.  Tasch.    206  (1807). 

SCHWAEG.  Suppl.  I,  P.  I,  732  (1811).     VOIT    Muse.  herb.  55  (1812).     ROEHL.  Deutsch. 

fl.  iii,  78  (1813).     MART.  Fl.  cr.  erl.  90  (1817).     ZENK.   DIETR.  Muse,  thuring.  I,  n.  13 

(1821).     SCHULTZ   Recens.    221,  t.  34,  f.    29  (1823).     BRID.    Bry.  univ.  i,  546  (1826). 

HUEBEN.   Muse.  germ.  313  (1833).     BR.  SCH.    Bry.    eur.  fasc.  13 — 15,  Mon.  35,  t.  20 

(1842).     RABENH.   Deutsch.    kr.   fl.    ii,  S.    3,    109    (1848),    C.    MUELL.  Synops.  i,   625 

(1849).     SCHIMP.  Synops.  185  (1860),  2  ed.  201.     MILDE   Bry.  siles.  113  (1869).     LESQ. 

JAMES  Mosses  N.  Amer.  119  (1884). 
Mollia  muralis  SCHRANK  Bayer.  Fl.  ii,  456  (1789). 
Desmatodon  muralis  JURATZ.  Laubm.  oesterr.-ung.  134  (1882). 

Autoicous  ;  densely  pulvinate  or  caespitant,  yellowish  or  glaucous 
green  and  canescent,  sparingly  branched.  Leaves  when  dry  appressed 
and  twisting,  when  moist  patent,  lower  oblongo-lanceolate,  upper  elon- 
gate-ligulate,  with  the  apex  obtuse,  unequally  prolonged  or  subcordate, 
minutely  papillose,  the  margin  yellowish,  strongly  revolute  ;  nerve  yellow, 
excurrent  in  a  diaphanous  hair;  upper  cells  small,  chlorophyllose,  indis- 
tinct, basal  rectangular,  hyaline.  Caps,  on  a  purple  or  yellow  seta, 
oblongo-subcylindric,  pachydermous,  regular,  dark  brown,  annulus 
narrow,  subpersistent  ;  calyptra  large,  pale  brown,  lid  obliquely  conico- 
rostellate  ;  peristome  purple,  closely  convolute,  on  a  very  narrow  basal 
membrane. 

Male  infl.  gemmaceous,  on  a  short  lateral  branch,  bracts  ovate, 
obtuse,  mucronate  with  the  nerve. 

HAB. — On  walls,  stones  and  rubbish  ;  very  common.     Fr.  4 — 5. 
Var.  (3.  rupestris  (Schultz). 

Plants  robust,  taller,  more  branched  ;  leaves  broader,  oblong ;  caps, 
cylindraceous,  on  a  long  seta. 


TORTULACE^;.]  218  [Tortilla. 

SYN. — Barbiila  muralis  ft.  rupcstris  SCHULTZ   Recens.   221,   t.  34,  f.  29  B.     BRID.   Bry.  univ.  i, 
548.     SCHIMP.  1.  c. 
Tortnla  muralis  g.  nipestris  WILS.  1.  c. 

HAB. — Wet,   shady    rocks   and   rotten   trees,    most    frequent    in    limestone 
districts. 

Var.  y.  sestiva  (End.). 

Plants  short  in   large  flat  tufts  ;  leaves  longer,  narrower,  lineal,  nerve 
ending  in  a  mucro  or  very  short  hair  ;  caps,  shorter  on  a  shorter  seta. 
SYN. — Mollia  tegular  is  SCHRANK  Baiers.  fl.  ii,  457. 

Tortula  muralis  ft.  astiva  BRID.  Muse.  rec.  II,  P.  I,  137.     HOOK.  TAYL.  Muse.  br.  30. 

Tortula  cestiva  P.  BEAUV.  Prodr.  91. 

Barbula  cuncifolia  WEB.  MOHR  Bot.  Tasch.  207.     TURN.  Muse.  hib.  p.p. 

Barbula  cestiva  SCHULTZ  Recens.  223,  1.^34,  f.  32.     BRID.  Bry.  univ.  i,  548. 

HAB. — On  sandstone  and  calcareous  rocks ;  rare. 

Henfield,  Sussex  (Borrer)  !     Ashley  Mill,  Cheshire  (Dr.  Wood). 

One  of  our  commonest  mosses  and  also  a  most  variable  one  in  size  of 
leaf,  seta  and  capsule  ;  the  obtuse  leaves  with  strongly  recurved  margins  and 
smooth  white  hair  points  are  the  most  distinctive  characters  of  the  species. 
The  hair  points  are  longest  when  the  plants  grow  in  dry  exposed  localities, 
but  this  condition  is  hardly  sufficient  to  constitute  a  distinct  variety. 


13.  TORTULA  MUCRONATA    (End.)  Lindb. 

Dioicous ;  tall,  branched,  deep  green.  Leaves  elongato-lingulate, 
papillose  on  both  sides,  mucronate  with  the  stout  nerve,  suddenly 
incrassate  at  margin.  Caps,  cylindraceous,  lid  with  an  oblique  beak; 
teeth  on  a  narrow  basal  membrane,  clathrate  at  base.  (T.  XXXII,  A.) 

SYN. — Barbula  mucronata  BRID.  Sp.  muse.  I,  268  (1806). 

Rhacomitrum  flavipes  BRID.  Mant.  81  (1819),  Bry.  univ.  i,  224  (1826). 
Desmatodon  dichotonms  BRID.  Bry.  univ.  i,  823. 

Trichostomum  flavipes  STEUD.  Nomencl.  421  (1824).     DE  NOT.  Syll.  183  (1838). 
B.  Brebissoni  BRID.  Bry.  univ.  i,  834  (1827).     SCHIMP.  Bry.  eur.  Suppl.  fasc.  3 — 4(1866). 
Synops.  2  ed.  222  (1876).     MILDE  Bry.  siles.  122  (1869).     HUSN.  Mouss.  nord-ouest.  80 
(1873). 
Didymodon  Cinclidotus  DE  NOT.  in  Mem.  acad.  Torin.  xl,  325  (1838). 

Tortula  Brebissoni  FIOR.-MAZZ.  Bry.  rom.  2  ed.  9  (1841).  DE  NOT.  Epil.  bri.  ital.  547 
(1869). 

Cinclidotus  riparius  Var.  ft.  terrcstris  BR.  SCHIMP.  Bry.  eur.  fasc.  16,  p.  n,  t.  2  (1842). 
WILS.  Bry.  brit.  138,  t.  44  (1855).  SCHIMP.  Synops.  195  (1860).  BERK.  Handb.  br.  m.  248 
(1863). 

Tortula  cylindrica  WILS.  in  Phytol.  1845,  P-  282- 

Cinclidotus  flavipes  DE  NOT.  MSS.  1861. 

Guembelia  ripariaVzr.  ft.  terrestris  C.  MUELL.  Synops.  ii,  651  (1851). 

Barbula  romana  C.  MUELL.  in  Bot.  zeit.  1856,  p.  419. 

Tortula  mucronata  LINDB.  de  Tort.  239  (1864).     HOBK.  Syn.  br.  m.  66  (1873). 

Desmatodon  Brebissoni  JURATZ.  Laubm.  oesterr.-ung.  136  (1882). 


TORTULACE^.]  219  [Tortnla. 

Dioicous ;  laxly  tufted,  i — 2  in.  high,  bright  green  above,  dull 
green  below,  dirty  fuscous  at  base,  fastigiate  branched,  with  red  radicles 
and  persistent  nerves  of  decayed  leaves  at  lower  part.  Leaves  crowded 
and  erecto-patent  above,  twisted  when  dry,  elongato-lingulate,  mucro- 
nate  with  the  stout  semi-terete  nerve,  concave,  margin  lightly  recurved, 
suddenly  iricrassate,  except  at  the  hyaline  base,  densely  and  minutely 
papillose  above  ;  cells  at  base  lax,  hexagono-rectang.  hyaline,  median 
oblongo-hexag.  chlorophyllose,  apical  minute,  subpunctiform,  rounded 
hexag.  Perich.  bracts  with  a  thinner  nerve,  narrower,  not  recurved, 
the  margin  scarcely  incrassate  ;  caps,  on  a  stout  yellow  seta,  lepto- 
dermous,  erect,  elongated,  cylindraceous,  slightly  incurved,  pale  fuscous, 
calyptra  large  brownish,  lid  orange,  conical  with  a  blunt  oblique  beak, 
falling  with  the  columella,  annulus  none;  teeth  on  a  narrow  basal 
membrane,  clathrato-conjoined  at  base,  once  twisted,  orange  red, 
fugacious. 

Male  plants  intermixed  with   female,  infl.  terminal,   gemmaceous, 
outer  bracts  ovato-lanc.,  inner  broadly  ovato-acuminate. 
HAB. — At  roots  of  old  trees  by  rivers,  not  common.     Fr.  5. 

Near  the  Mole  at  Beeching  wood,  Micklefram  (Borrer)  !  !  Llanffinnan,  Anglesey  (Wilson 
1828)!  Stapleton,  Bristol  (Thwaites  1843)  !!  Hurstpierpoint  (Mitten}  \  Great  Bard- 
field,  Essex  (Borrer  1844)  !  Tyffry,  Anglesey  (Hunt  1858)  !  Eggleston  bridge,  Tees- 
dale  (Spruce  1845) !  Willenhall  cemetery  (Kirk  1863)  !  Brighton  (Davics  1868)  !  ! 
Plymouth  (Holmes  1868)  !  !  Banks  of  the  Alne,  Wootton  (BagnalL  1873)  !  !  Sherborne, 
and  by  the  Monnow  and  Wye,  Monmouth  (Boswell  1877) !  !  Menmuir  and  Caterthun, 
Forfar  (Anderson).  Kinnordy  (Fcrgusson).  Houghton,  Northampton  (Dixon)  \  \ 
Glanvilles  Wootton,  Dorset  (Rev.  H.  Wood  1880)  !  ! 

Although  long  united  to  Cinclidotus  riparius,  that  moss  differs  from  the 
present  by  its  cladocarpous  fruit,  its  lurid  blackish  colour,  the  leaves  straight 
and  appressed  when  dry,  with  plane  margins  and  more  slender  nerve  lost  in 
the  apex,  the  basal  cells  quadrate,  incrassate,  the  upper  rounded,  4 — 6  angled 
and  quite  smooth. 

Neat  specimens  of  this  moss  are  difficult  to  meet  with,  as  its  close 
vicinity  to  streams  renders  it  liable  to  receive  deposits  of  mud,  and  the  soft 
lamina?  of  the  leaves  are  easily  abraded. 

Sect.  2.  ZYGOTRICHIA  (End.}.  Stems  short ;  leaves  spathulate, 
green,  pointed  with  the  excurrent  nerve.  Peristome  combined  at  lower  part 
into  a  long  tube,  spirally  tessellated. 

14.    TORTULA  SUBULATA  (L.}   Hedw. 

Autoicous  ;  leaves  spathulate-oblong,  rosaceous,  entire,  with  a 
yellowish  border,  nerve  excurrent  in  a  mucro.  Caps,  very  long, 
cylindric,  slightly  curved,  the  tube  of  per.  obliquely  tessellated. 
(T.  XXXIL,  B.) 

SYN. — Muscus  trichoides  minor,  capitulis  longissimis  Doody.  RAY.  Syn.  Stirp.  br.  243  (1690). 
Muscus  capillaris  corniculis  longissimis  incurvis  RAY  Syn.  2  ed.  29  (1696). 


TORTULACE^E.]  22O  [Tortilla. 

Bryunt  erectis  longis  et  acutis  falcatis  capitulis,  calyptra  subfusca,  foliis  serpylli  pellncidis 

DILL.  Cat.  Giss.  223  (1719),  et  in  RAY.  Syn.  3  ed.  92  (1724). 

Bryum  capsulis  longis  subulatis  DILL.  Hist.  muse.  350.  t.  45,  fig.  10  (1741),  et  Herbar. 
Bryum  subulatum   L.   Sp.  pi.  ii,  1116   (1753),   Syst.   Nat.  ii,  701.     HUDS.  Fl.  angl.  405 

(1762).     WEISS  Crypt,  goett.  187  (1770).     NECK.  Meth.  muse.  194  (1771).     WITH.  Bot. 

arr.  br.  veg.  ii,  672  (1776).     LIGHTF.  Fl.  scot,  ii,  719  (1777).     WEB.  Fl.  goett.  99  (1778). 

CURT.   Fl.   Lond.  fasc.  3,t.  66  (1778).     RELH.  Fl.  cant.  402  (1785).     HOFFM.  Deutsch. 

fl.  ii,  46  (1795).     ABBOT.  Fl.  bedf.  242  (1798).     HULL  Br.  fl.  P.  2,  263  (1799).    Fl.  Dan. 

t.  1000,  f.  2. 

Mnium  subulatum  Sw.  Meth.  muse.  28  (1781). 
Tortula  subulata  HEDW.  Fund,  ii,  92  (1782),  Sp.  muse.   122,  t.  37  (1801).     ROTH    Fl. 

germ,  i,  461  (1788).     TIMM  Fl.  meg.  220  (1788).     SIBTH.  Fl.  oxon.   284  (1794).     BRID. 

Muse.  rec.  II,  P.  I,   184  (1798).      SWARTZ  Muse.   suec.  39  (1799).      ROEHL.  Moosg. 

deutsch.  384  (1800),  Deutsch.  fl.  iii,  77  (1813).     SM.  Fl.  brit.  iii,  1255  (1804),  Eng.  Bot. 

t.   noi.     TURN.  Muse.  hib.  44  (1804).     SCHWAEG.   Suppl.   I,   P.  I,   135,  t.  34  (1811). 


WAHLENB.  Fl.  lapp.  316  (1812),  Fl.  carp.  337  (1814).  HOOK.  TAYL.  muse.  br.  31,  t.  12 
(1818).  GRAY  Nat.  arr.  br.  pi.  i,  723  (1821).  HOOK.  Fl.  scot.  P.  2,  127  (1821), 
Br.  fl.  ii,  45  (1833).  MACK.  Fl.  hib.  P.  2,  26  (1836).  DE  NOT.  in  Mem.  ace.  Torin.  xl, 


293,   et  Syllab.  173  (1838),  Muse.  ital.  I,  46,  t.  21   (1862),    Epil.  bri.  ital.  545  (1869). 

WILS.  Bry.  brit.  132,  t.  12  (1855).     BERK.  Handb.  br.  m.  252  (1863).     LINDB.  de  Tort. 

242  (1864).     HOBK.  Syn.  br.  m.  72  (1873). 

Mollia  subulata  SCHRANK  Bayers.  Fl.  ii,  455  (1789),  Fl.  Salisb.  n.  830  (1792). 
Barbula  subulata  P.  BEAUV.  Prodr.  43  (1805)  et  in  Mem.  Soc.  Linn.  Par.  i,  t.  6,  f.  2  (1822). 

BRID.  Sp.  muse.  I,  267  (1806).     SCHULTZ  Fl.  starg.  305   (1806).     BR.  SCH.  Bry.  eur. 

fasc.   13—15,   Mon.  36,   t.  21   (1842).     RABENH.    Deutsch.   kr.  fl.  ii,  S.   3,  no  (1848). 

C.  MUELL.  Synops.  i,  623  (1849).     SCHIMP.  Synops.  186  (1860),  2  ed.  223.     MILDE  Bry. 

siles.    125    (1869).      HUSN.   Mouss.    nord-ouest.    86    (1873).      LESQ.    JAMES    Mosses 

N.  Amer.  130  (1884). 
Syntrichia  subulata  WEB.  MOHR.  Bot.  Tasch.  214  (1807).      VOIT  Muse.  herb.  53  (1812). 

MART.  Fl.  cr.  erl.  87  (1817).     BRID.  Mant.  97  (1819),  Bry.  univ.  i,  579  (1826).     SCHULTZ 

Recens.  226,  t.  34,  f.  i  A  (1823).     HUEBEN.  Muse.  germ.  335  (1833). 
Desmatodon  subulatus  JURATZ.  Laubm.  oesterr.-ung.  138  (1882). 

Autoicous ;  laxly  caespitose,  robust,  bright  green,  short,  simple  or 
branched.  Leaves  rosaceous,  erecto-patulous,  obovato-  and  spathulate- 
oblong,  mucronate  with  the  excurrent  nerve,  entire  or  obscurely  serrate 
at  apex,  subundulate,  with  the  margin  plane  and  a  yellow  border  of 
narrow  pachydermous  cells,  more  or  less  distinct  or  wanting ;  cells  at 
base  lax,  rectangular,  hyaline,  above  opake,  chlorophyllose,  finely 
papillose.  Calyptra  large,  brownish,  caps,  on  a  stout  reddish  seta 
twisted  to  the  left,  elongated,  cylindraceous,  subarcuate,  brown, 
pachydermous,  lid  narrowly  conic,  annulus  of  a  double  series  of  cells ; 
tube  of  per.  very  long,  pale  red,  obliquely  quadrately  tessellated,  teeth 
red. 

Male  infl.  gemmiform,  on  a  short  lateral  branch,  bracts  ovato-lanc., 
the  nerve  vanishing. 

HAB. — Sandy  banks  by  roadsides  and  hedges  ;  common.     Fr.  5 — 6. 
Var.  ft.  subinermis  (Br.  Sch.). 

Dull  green  ;  leaves  dense,  oblong  and  ovato-lanceolate,  mucronate, 
indistinctly  bordered  ;  caps,  shorter  on  a  shorter  pedicel. 

SYN. — Barbula  subulata  Var.  subinermis  BR.  SCHIMP.  Bry.  eur.  Mon.  37. 
Tortula  subulata  Var.  /?.  subinermis  WILS.  Bry.  brit.  132. 


TORTULACEAC.]  221  [Tortilla. 

HAB. — Shady  places  and  on  stumps  of  trees. 

Thelwall,    Warrington    (Wilson    1843)  !      Largo,    Fife    (Howie    1873)  !  !      New    Forest 
(Lycll).     Dailly,  Ayrshire  (Schimpcr). 

T.  subulata  is  easily  recognized  by  its  broad  pale  green  leaves  and  long 
capsules,  but  varies  considerably  in  the  marginal  cells  of  the  leaves.  T. 
mucronifolia  SCHWAEG.  has  not  been  recorded  as  British,  but  appears  to  be  only 
a  variety  of  subulata  with  a  shorter  capsule  and  smooth  leaves.  T.  inermis 
MONT,  is  a  closely  allied  species,  with  oblong  obtuse  muticous  leaves,  strongly 
revolute  at  the  margin,  and  more  minutely  areolate  ;  it  should  be  sought  for 
in  the  S.W.  of  England,  as  it  is  found  in  France  and  Portugal. 

15.  TORTULA  ANGUSTATA    Wils. 

Autoicous  ;  resembling  T.  subulata,  but  more  slender.  Leaves 
lanceolate,  acute,  with  a  narrow  thickened  border,  obtusely  serrate 
above.  Caps,  cylindric,  narrow,  subarcuate.  (T.  XXXII,  C.) 

SYK.—Tortnla  angustata  WILS.  MSS.  LINDB.  de  Tort.  243  (1864),  et  Muse.  Scand.  20  (1879). 
Barbula  subulata  Var.  8.  angustata  SCHIMP.  Syn.  2  ed.  224  (1876). 
Desmatodon  subulatus  Var.  y3.  augtistatus  JURATZ.  Laubm.  oesterr.-ung.  138. 

Autoicous  ;  resembling  T.  subulata,  but  more  slender.  Leaves 
narrowly  ovato-lanceolate,  tapering  into  a  very  acute  point,  erecto- 
patent  when  moist,  erect  and  less  twisted  when  dry,  subserrated 
toward  apex,  margin  incrassate,  of  very  long  narrow  hyaline  smooth 
cells.  Calyptra  more  glossy ;  seta  longer  and  more  slender,  twisted  to 
the  right  below,  to  the  left  above ;  caps,  paler,  suberect,  long,  narrowly 
cylindric,  per.  paler,  tubular  for  three-fourths  its  length,  lid  longer  and 
more  acute. 
HAB. — Moorland  banks,  rare.  Fr.  3 — 4. 

Castle  mill,  Ringway,  Cheshire  (Wilson  1833)  !     Clifton  Scope,  York  (Spruce  1843)  !  ! 

Although  generally  regarded  as  a  variety  of  subulata,  this  moss  has  all 
the  appearance  of  a  distinct  species,  and  this  view  the  characters  and  figures 
here  given  will  we  think  sufficiently  confirm. 

Sect.  3.  SYNTRICHIA  (End.).  Stems  tall,  branched ;  leaves  large, 
oblong,  obtuse,  the  nerve  usually  piliformi-aristate.  Peristome  tubular 
below,  striato-tessellate. 

1 6.  TORTULA  MUTICA  Lindb. 

Dioicous ;  caespitose,  dark  dull  green.  Leaves  spathulate-ovate, 
obtuse,  emarginate,  nerved  to  apex.  Caps,  cylindraceous,  annulus 
simple,  peristome  tubular  in  lower  third  part.  (T.  XXXII,  D.) 

S\x.  —  Syntrichia  lavipila  Var.  /?.  mutica  SCHULTZ   Recens.  Barb,  et  Syntr.  230,  t.  34,  £.46 
(1823).     BRID.  Bry.  univ.  i,  836  (1827). 

Syntrichia  latifolia  BRUCH   Flora  vii,  P.  2,  p.  761   (1824).     HUEBEN.   Muse.   germ.  342 
(1833).    AHNF.  in  FRIES  Fl.  scand.  240  (1835).    JURATZ.  Laubm.  oest.-ung.  142  (1882). 


TORTULACE^E.]  222  [Tortula. 

Tortula  ruralis  Var.  /?.  latifolia  ARN.  in  Mem.  Soc.  d'Hist.  nat.  Paris  ii,  286  (1825). 
Syntrichia  ruralis  Var.  y.  latifolia  SPRENG.  in  L.  Syst.  veg.  16  ed.  iv,  P.  I,  177  (1827). 
Tortula  latifolia  HARTM.  Skand.   fl.  2  ed.  322  (1832).     SPRUCE   in  Ann.  mag.   nat.  hist. 

2  ser.   iii,  376   (1849).     WILS.  Bry.  br.  133,  t.  43  (1855).     BERK.   Handb.  br.  rn.  251 

(1863).     LINDB.  de  Tort.  243  (1864).     HOBK.  Syn.  br.  m.  72  (1873). 
Barbula   latifolia   Br.   SCHIMP.   Bry.  eur.  fasc.    13—15,  p.  41,  t.   24   (1842).      RABENH. 

Deutsch  kr.  fl.  ii,  8.3,   in    (1848).     C.   MUELL.   Synops.  i,  632    (1849).     JENS.  Bry. 

dan.  no,  t.  6,  f.  30  a — c  (1856).     SCHIMP.  Synops.  190  (1860),  2  ed.  227.     MILDE  Bry. 

siles.  128  (1869).     HUSN.  Mouss.  nord-ouest  2  ed.  77  (1882).     LESQ.  JAMES  Mosses  N. 

Amer.  130  (1884). 
Tortula  mutica  LINDB.  Muse.  Scand.  20  (1879). 

Dioicous;  irregularly  csespitose,  sparingly  branched.  Dark  dirty 
green.  Lower  leaves  remote,  obovate-oblong,  upper  crowded  in  a 
patulous  rosette,  larger,  soft,  erecto-patent,  spathulate-lingulate,  obtuse, 
emarginate  at  apex,  when  dry  complicate  and  twisted  ;  margin  slightly 
recurved  in  lower  half;  nerve  stout,  vanishing  at  apex,  or  slightly 
excurrent,  rough  at  back  of  apex ;  cells  at  base  very  lax,  hexagono- 
rectangular,  pellucid,  above  minute,  obscure,  roundish-hexagonal,  very 
finely  papillose.  Inner  perich.  bracts  more  complicate  and  oblong. 
Caps,  on  a  short  stout  reddish  seta,  castaneous,  erect,  oblongo-cylindric, 
slightly  curved  ;  annulus  narrow  of  3  rows  of  cells,  lid  paler,  ^  length 
of  caps,  subobliquely  subulate ;  per.  pale  red,  tubular  in  lower  third. 
Male  infl.  unknown. 

HAB. — Tree  trunks  and  rotten   wood  at  edge  of  streams,  liable  to  be  over- 
flowed ;  not  common.     Fr.  5. 

Henfield,   Sussex  (Borrer   1844).     Hurstpierpoint  c.  fr.  (Mitten)  \     Suffolk  (Eagle  1851). 

Near    York    c.    fr.    (Spruce    1843)  !       Glasgow    (Drummond).       Bristol    (Thwaites)  \ 

Warrington    (Wilson)  \       Buckingham    c.    fr.    (Holmes    1874)  !  !       Glasnevin    (Moore). 

Lagan,  Drumcro,  Co.  Down  (Rev.  C.  H.  Waddell)  !  !  Ascott  under  Wychwood 
Buswell).  Codbeck,  Sowerby  c.  fr.  (Baker,  1855)  !  By  the  Adur,  Shermanbury 
Borrer  1844)  !  Jedburgh  (Jerdon).  Bowdon  (Hunt  1865)  !  !  By  the  Cherwell,  Islip 
Boswell  1859)  !  !  Kingsthorpe,  Northampton  c.  fr.  (Dixon  1884)  !  !  Oswestry 

(Cash  1882)  !     Drum  Bridge,  Antrim  (Stewart  1878)  !  !     Shere  (Capron)  !  ! 

Readily  known  by  its  lurid  green  colour,  and  broad  epilose  leaves, 
narrowing  towards  the  base.  Mr.  WaddelFs  specimen  has  minute  globular 
gonidia  scattered  over  the  upper  surface  of  the  leaf,  not  unlike  those  of 
T.  papillosa.  The  specific  name  latifolia  is  preoccupied  by  the  union  of 
Desmatodon  with  this  genus. 

17.  TORTULA  PAPILLOSA  Wils. 

Dioicous ;  short,  tufted,  dull  green.  Leaves  obovate,  concave, 
shortly  hair-pointed  ;  nerve  gemmiparous  on  the  upper  half.  Caps, 
short,  erect,  cylindric.  (T.  XXXII,  E.) 

SYN. — Tortula  ruralis  var.  HOOK.  TAYL.  Muse.  brit.  2  ed.  56  (1827). 

Tortula  papillosa  WILS.  MSS.  SPRUCE  in  HOOK.  Lond.  J.  iv,  193  (1845),  et  Ann.  mag. 
n.  h.  2  ser.  iii,  376  (1849).  WILS.  Bry.  brit.  135,  t.  44  (1855).  MITT,  in  HOOK.  J.  viii, 
259  (1856),  in  Fl.  Tasm.  ii,  176  (1858),  et  Journ.  Lin.  soc.  xii,  174  (1869).  LINDB.  in 
HARTM.  Sk.  fl.  8  ed.  391  (1861),  de  Tort.  244  (1864).  BERK.  Handb.  br.  m.  250  (1863). 
DE  NOT.  Epil.  bri.  ital.  543  (1869).  HOBK.  Syn.  br..  m.  71  (1873). 


TORTULACE^E.]  223  [Tortula. 

Tortula  rotundifolia  HARTM.  Skand.  fl.  5  ed.  381  (1849).  C.  MUELL.  Synops.  ii, 
632  (1851). 

Barbula  papillosa  C.  MUELL.  Synops.  i,  598    (1849).      MILDE   Bry.  siles.   127   (1869). 

HUSN.  Mouss.  nord.-ouest.  80  (1873).     SCHIMP.  Synops.  2  ed.  231  (1876).     LESQ.  JAMES 

Mosses  N.  Amer.  133  (1884). 

Barbula  rotundifolia  JENS.  Bry.  dan.  no,  t.  6,  f.  30  f.  g.  (1856). 
Syntrichia  papillosa  JURATZ.  Laubm.  oester.-ung.  141  (1882). 

Dioicous ;  short,  tufted,  dull  olive  green  or  brown,  slightly 
branched,  fastigiate.  Leaves  erecto-patent,  soft,  lower  obovate,  upper 
obovate-spathulate,  panduriform,  very  concave  and  subcochleariform, 
very  slightly  acuminate  at  apex,  or  rounded  or  obcordate  ;  margin 
strongly  involute  ;  nerve  thick  and  spongy,  rufescent,  excurrent  in  a 
mucro,  or  short  smooth  hair,  with  long  papillae  at  the  back ;  and  in 
front  at  the  upper  end  in  the  younger  leaves  bearing  chlorophyllose 
subglobose  2-4-celled  gonidia,  the  wings  papillose  at  back  ;  cells  above, 
rounded  hexagons,  at  base  lax,  quadrate  or  hexagono-rectangular, 
hyaline.  Caps,  erect  short,  on  a  short  seta,  cylindraceous,  rufescent, 
lid  conico-subulate,  oblique  ;  per.  pale,  half  length  of  caps,  its  lower 
third  tubular. 
HAD. — Trunks  of  tree,  not  uncommon  but  always  sterile. 

Rumsey  churchyard,  Hants.  (Lyell  1818).  Marl,  Conway  (Wilson  1844)  •'  '  Near  York 
(Spruce)  \  Hurstpierpoint  (Mitten).  Castle  Howard  (Spruce  1844)  '  Newtimber 
(Davies  1857)  !  !  Dailly,  Ayr  (Shaw  1861)  !  Isle  of  Man  (Holt  1881)  !  !  Levens 
(Barnes  1868)  !  Witney  (Westell).  Silverdale,  Lane.  (Now ell)  !  Stone  walls  at 
Perth.  Killin  (Hunt  1866)  !  Noran,  Forfar  (Anderson  1868)  !  Dublin,  Powers,court 
and  Belfast  (Moore).  Watford  (Holmes)  !  ! 

The  fruit  of  this  moss  has  only  been  tound  at  Sealer's  Cove,  Australia, 
by  Baron  Mueller,  and  Canterbury,  New  Zealand,  by  Sinclair  and  Haast. 
The  gemma?  are  very  easily  detached,  and  must  be  looked  for  on  the  upper- 
most leaves. 

18.  TOBTULA  LAEVIPILA  (Brid.)  Schwaegr. 

Autoicous ;  in  lax  deep  green  tufts.  Leaves  spathulate-oblong, 
obtuse,  nerve  reddish,  excurrent  in  a  white  smooth  reflexed  hair. 
Caps,  subcylindric,  curved  ;  per.  contorted,  tubular  in  lower  third. 
(T.  XXXII,  F.) 

SYN. — Syntrichia  Iwvipila  BRID.  Mant.  muse.  98  (1819),  Bry.  univ.  i,  586  (1826).     SCHULTZ 

Rec.    Barb,    et   Syntr.   230,    t.    34,  f.  4   (1823).     WALLR.   Fl.  cr.  germ,  i,  193  (1831). 

HUEBEN.  Muse.  germ.  340  (1833).     AHNF.  in  FRIES    Fl.  scand.  240  (1835).    JURATZ. 

Laubm.  oesterr.-ung.  140  (1882). 
Tortula  Icnvipila  SCHWAEG.   Supp.  II,  P.  I,  66,  t.  120  (1823).     SPRUCE  Ann.  mag.  n.  h. 

2  ser.  iii,  376  (1849),     HARTM.  Skand.  fl.  5—8  edd.  p.p.     WILS.  Bry.  Brit.   133,  t.  43 

(1855).    BERK.  Handb.  br.  m.  252  (1863).     LINDB.  de  Tort.  245  (1864).     HOBK.  Syn.  br. 

m.  71  (1873). 
Tortula  ruralis  (3.  Icevipila  HOOK.  GREV.  in  Ed.  J.  sc.  5,  293  (1824).     HARTM.   Skand.   Fl. 

3—4  edd.     ARM.  in  mem.  soc.  d'hist.  nat.  ii,  286  (1825).     HOOK.  Br.  fl.  ii,  45  (1833). 
Barbula  Icevipila  BR.  SCHIMP.   Bry.  eur.    fasc.    13—15,  p.    4°,   t.   25    (1842).     RABENH. 

Deutsch.  kr.  fl.  ii,  s.  3,  in  (1848).     C.  MUELL.  Synops.  i,  638  (1849).     JENS.  Bry.  dan. 

109  (1856).     SCHIMP.   Synops.   189   (1860),  2  ed.  226.     MILDE  Bry.  siles.  127  (1869). 

HUSN.  Mouss.  nord-ouest  86  (1873).     LESQ.  JAMES  Mosses  N.  Amer.  132  (1884). 


TORTULACE.E.]  224  [Tortula. 

Autoicous ;  in  wide  lax  deep  green  tufts  I  in.  high,  subpulvinate, 
with  dense  rufous  tomentum,  dichotomously  branched.  Leaves  patent, 
more  or  less  recurved  above,  oblong  or  obovate-spathulate,  the  apex 
rounded  and  emarginate,  not  bordered,  or  with  a  yellowish  border  of 
rounded-hexag.  pachydermous  cells;  nerve  rufous,  excurrent  in  a 
smooth  or  slightly  denticulate,  reflexed  hyaline  arista ;  basal  cells  lax, 
hexagonal,  pellucid,  upper  minute,  opake,  finely  papillose,  margin  plane 
above,  slightly  recurved  below ;  perich.  bracts  more  acuminate. 
Caps,  on  a  stout  purple  seta,  oblong  or  cylindraceous,  slightly  curved, 
pachydermous,  deep  brown,  ann.  double,  lid  paler,  elongate  conic,  per. 
pale  red,  contorted,  tubular  in  the  lower  third. 

Male  infl.  axillar,  sessile  on  a  short  branch,  gemmiform,  bracts 
ovato-acuminate. 

HAB. — Trunks   of   trees   and  rails,    not    uncommon  ;    sometimes  on   rocks. 
Fr.  5—6. 

In  appearance  intermediate  between  the  T.  ruralis  and  T.  mumlis  var.  /?., 
from  the  former  it  is  known  by  the  smooth  arista,  brighter  green  colour  and 
larger  areolation,  from  the  latter  by  the  tubular  peristome. 

T.  loevipiliformis  DE  NOT.  is  a  variety  with  the  leaf  distinctly  bordered  ; 
Barbula  pagorum  MILDE,  a  smaller  obtuse  leaved  form,  bearing  numerous 
oblong,  pointed  gemmae  in  the  axils  of  the  leaves. 

19.  TORTULA   MONTANA   (Nees)  Lindb. 

Dioicous ;  densely  pulvinate,  dull  green.  Leaves  erecto-patent, 
oblongo-spathulate,  plane,  obtuse,  with  a  rough  arista,  densely  areo- 
late.  Caps,  subcylindric,  tube  of  per.  short.  (T.  XXXIII,  A.) 

SYN. — Syntrichia  montana  NEES  Flora  ii,  P.  I,  301  (1819). 

Syntrichia  intermedia  BRID.  Bry.  univ.  i,  586  (1826).     JURATZ.  Laubm.  oester.-ung.  144 
(1882). 

Tortula  ruralis  g.  crinita  DE  NOT.  in  Mem.  ac.  Torin.  xl,  291  (1838),  Syllab.   171  (1838), 

Muse.  ital.  I,  36,  t.  15  (1862). 
Barbula  ruralis  ft.  rupestris  BR.  SCHIMP.  Bry.  eur.  fasc.  13—15,  p.  43  (1842).     C.  MUELL. 

Synops.  i,  640  (1849).     SCHIMP.  Synops.   192   (1860).     HUSN.  Mouss.   nord-ouest  87 

(l873)- 

Tortula  ruralis  (3.  minor  WILS.  Bry.  brit.  134  (1855)  ;  et  Var.  rupestris  WILS.  in  Suppl. 
Tortula  intermedia  BERK.  Handb.  br.  m.  251  (1863).     LINDB.  de  Tort.  246  (1864).    DE  NOT. 

Epil.  bri.  ital.  540  (1869).     HOBK.  Syn.  br.  m.  71  (1873). 

Barbula  intermedia  MILDE  Bry.  siles.  129  (1869).     SCHIMP.  Synops.  2  ed.  229  (1876). 
Tortula  montana  LINDB.  Muse,  scand.  20  (1879). 

Dioicous;  densely  casspitose,  dull  green  and  canescent  above, 
fuscous  below;  stems  short,  dichotomous,  fastigiate.  Leaves  crowded, 
erecto-patent,  a  little  recurved  at  apex,  appressed  and  scarce  curved 
when  dry,  oblongo-spathulate,  rounded  or  emarginate  at  apex,  concave 


TORTULACE.E.]  225  [Tortula. 

or  nearly  plane,  margin  lightly  recurved  up  to  middle,  very  minutely 
crenulate,  with  a  broad  yellowish  border  and  no  plaits  ;  upper  cells 
very  obscure,  verruculose,  only  half  the  size  of  those  of  T.  ruralis,  basal 
rectangular,  diaphanous ;  nerve  stronger,  rufous,  prolonged  into  a  hair 
less  rough  than  that  of  T.  ruralis.  Caps,  shorter  on  a  shorter  seta  ;  peris- 
tome  and  its  tube  shorter,  less  distinctly  tessellated,  paler,  with  only  a 
single  spiral.  Male  plant  more  slender,  inner  bracts  roundish-ovate, 
concave,  nerve  vanishing. 

HAB. — Sunny  limestone  rocks  and  walls  ;  not  uncommon.     Fr.  4 — 5. 

Near  Conway,  Aber  and  Malham  (Wilson) !  !  Stenton  rocks,  Dunkeld  (Dr.  B.  White 
1865)  !  Bridge  of  Lochay  (Hunt  1866)  !  !  Thornton  Gill,  Ingleton  and  Bolton  bridge 
(Hunt  1867) !  !  Witney,  Oxon  (Boswell  1878) !  !  Levens  and  Syergh  Fell  (Barnes 
1868)  !  Millersdale,  Bakewell  and  Chapel-en-le.Frith  (Holt  1882)  !  !  Angmering 
(Davies  1863)  !  !  Dunsinko,  Dublin  (Orr  1857) •  '  Castle  Taylor,  Galway  (Moore). 
Port  Greenock,  I.  of  Man  (Holt  1881)  !  ! 

Readily  distinguished  from  T.  ruralis  by  the  direction  of  the  leaves  and 
smaller  areolation,  as  well  as  by  the  short  and  dense  tufts. 


20.   TORTULA  RURALIS   (L.)   Ehrh. 

Dioicous  ;  tall,  loosely  matted.  Leaves  from  an  erect  base,  squar- 
roso-recurved,  carinate,  oblong,  obtuse,  with  a  long  spinulose  arista. 
Caps,  cylmdraceous,  peristome  very  long,  with  a  long  tube. 
(T.  XXXIII,  B.) 

SYN. — Muscus  capillaris  tectorum,  densis  cespitibus  nascens,  capitulis  oblongis,  foliis  in  pilum 
longum  dcsinentibus  RAY  Synops.  st.  br.  2  ed.  28  (1696),  Hist.  pi.  iii,  34  (1704). 

Bryum  erectis  falcatis  capitulis,  trichodcs,  foliis  latiusculis  extantibiis,  in  pilum  canescentem 

desinentibus  DILL.  Cat.  Giss.  224,  t.  2  A — E  (1719),  in  RAY  Syn.  3  ed.  94  (1724). 
Bryum  caule  crecto,  foliis  re/lexis  seta  tcrminatis,  capitulis  falcatis  L.  Fl.  lapp.  315  (1737). 
Bryant   rurale   unguiculatum   hirsutum    elatius  et  ramosius  DILL.  Hist.  muse.  352,  t.  45, 

f.  12  A— C  (1741),  et  Herb. 
Bryum  rurale  L.  Sp.  pi.  1116  (1753),  Syst.  nat.  ii,  701.     Huns.   Fl.   angl.  405    (1762). 

NECK.  Meth.  muse.  225  (1771).     WITH.   Bot.  arr.  br.  veg.  ii,  672  (1776).     LIGHTF.  Fl. 

scot,  ii,  720  (1777).     RELH.  Fl.  cant.  403  (1785).     HOFFM.  Deutsch.  fl.  ii,  45  (1795). 

ABBOT  Fl.  bedf.  790  (1798).     HULL  Br.  fl.  II,  265  (1799). 
Hypnum  rurale  WEISS  Cr.  goett.  210  (1770).     WEBER  Fl.  goett.  73  (1778). 
M nium  rurale  SWARTZ  Meth.  27  (1781). 
Barbula  ruralis  HEDW.  Fund.  II,  92  (1782),  Sp.  muse.  121  (1801).     ROTH.  Fl.  germ,  i,  461 

(1788).      TIMM   Fl.   meg.  n.  793  (1788).      BRID.    Muse.  rec.   II,   P.  I,   195  (1798),  Sp. 


muse.  I,  258  (1806).     ROEHL.  Moosg.  deutsch.  410  (1800).     P.  BEAUV.  Prodr.  43  (1805). 

SCHULTZ  Fl.  Starg.  304  (1806).     WAHLENB.  Fl.  lapp.  318  (1812).     BR.  SCH.  Bry.  eur. 

fasc.  13 — 15,  p.  42,  t.   27  (1842).     RABENH.   Deutsch.  kr.  fl.  ii,  S.  3,   112  (1848).     C. 

MUELL.   Synops.  i,  639  (1849).     SCHIMP.  Synops.   191  (1860),  2  ed.  229.     MILDE  Bry. 

siles.  128  (1869).     HUSN.  Mouss.  nord-ouest  86  (1873).     LESQ.  JAMES  Mosses  N.  Amer. 

132  (1884). 

Mollia  ruralis  SCHRANK  Bayers,  fl.  ii,  456  (1789).     Fl.  Salisb.  n.  831  (1792). 
Tortula  ruralis  EHRH.  Beitr.  vii,  100  (1792).     SWARTZ  Muse.  suec.  39  (1799).     SMITH  Fl. 

brit.  1254  (1804),  Eng.   Bot.  t.  2070.    TURN.  Muse.  hib.  50  (1804).     SCHWAEG.  Suppl. 

I,  P.  I,  137,  t.  35  (i8ii).     ROEHL.   Deutsch.  fl.  iii,  78  (1813).     WAHLENB.  Fl.  carp.  338 

(1814),  Fl.  upsal.  375  (1820).    HOOK.  TAYL.  Musc.br.  31,  t.  12  (1818).     GRAY  Nat.  arr. 

br.  pi.  i,  723  (1821).     HOOK.  Fl.   scot.  P.  2,  127  (1821),  Br.  fl.  ii,  45  (1833).     MACK.  Fl. 


TORTULACE^E.]  226  [Tortuld. 

hib.  P.  2,  26  (1836).  DE  NOT.  in  Mem.  ac.  Torin.  xl,  290  (1838),  Syllab.  171  (1838), 
Muse.  ital.  I,  35,  t.  14  (1862),  Epil.  bri.  ital.  538  (1869).  WILS.  Bry.  brit.  134,  t.  12 
(1855).  BERK.  Handb.  br.  m.  250,  t.  22,  f.  4  (1863).  LINDB.  de  Tort.  246  (1864). 
HOBK.  Syn.  br.  m.  71  (1873). 

Syntrichia  ruralis  BRID.  in  Schrad.  Journ.  iii,  P.  2,  p.  299  (1801),  Mant.  98  (1819),  Bry. 
univ.  i,  584  (1826).  WEB.  MOHR  Bot.  Tasch.  215  (1807).  VOIT  Muse.  herb.  52  (1812). 
Mart.  Fl.  cr.  erl.  88  (1817).  SCHULTZ  Recens.  229,  t.  34,  f.  3  (1823).  HUEBEN.  Muse, 
germ.  338  (1833).  JURATZ.  Laubm.  oesterr.-ung.  143  (1882). 

Dioicous ;  in  loose  tall  expanded  tufts,  ferruginous  below,  deep 
green  and  hoary  above,  dichotomously  branched.  Leaves  remote, 
crowded  at  apex,  carinate,  from  a  long  erect  subvaginant  base,  recurvo- 
squarrose  from  the  middle,  appressed  and  twisted  when  dry,  oblong, 
elongated,  apex  rounded  or  emarginate,  margin  revolute  almost  to 
apex ;  nerve  red,  excurrent  in  a  flexuose  hoary  spinulose  arista ;  cells  at 
base  rectangular,  hyaline,  above  soft,  hexagonal,  coarsely  papillose. 
Seta  long,  purple  at  base,  yellowish  above,  calyptra  large,  fuscescent  ; 
caps,  erect,  elongated,  cylindraceous,  a  little  curved,  brown,  pachyder- 
mous ;  annulus  double,  lid  red,  suboblique,  elongate-conic  ;  per.  very 
long,  the  lower  half  tubular,  pale,  spirally  tessellated,  teeth  purple, 
contorted. 

Male  plant  more  slender.  Infl.  terminal,  gemmaceous,  inner  bracts 
ovate,  nerved,  submuticous. 

HAB. —  On  old  thatched  roofs,  sandy  banks  and  walls  ;  rarely  on  trunks  of 
trees,  common.         Fr.  4 — 5. 

Var.  /3.  arenicola  Braithw. 

Plants  taller,  more  slender,  yellow-green.  Leaves  more  distant,  longer, 
of  thinner  texture,  becoming  narrowed  toward  the  apex,  the  point  shortly 
acuminate  in  a  scarious  membrane,  prolonged  on  the  arista  and  sometimes 
denticulate  at  the  margin. 

SYN. — Barbtda  ruraliformls   BESCH.    in    Musci  Gall.  n.   457.       HUSNOT   Mouss.  nord-ouest 
2  ed.  79. 

HAB.— Sandy  ground  near  the  coast. 

St.  Andrew's  Links  (Braithwaite  1865) !  !  Southport  (Holt  1879)  !  !  Cromer  (H.  N. 
Dixon  1884)  !  ! 

The  recurved  leaves  with  revolute  margins  best  distinguish  this  species, 
and  Lindberg  also  describes  as  peculiar  to  it  two  longitudinal  plaits,  just 
within  the  margin  of  the  leaf.  Barbula  pulvinata  JURATZ.  is  intermediate 
between  montana  and  mralis,  though  the  structure  of  the  leaf  agrees  better 
with  the  latter,  of  which  it  must  probably  be  regarded  as  a  variety. 

Tortula  norvegica  (WEB.  1804).  Bavbula  aciphylla  BRUCH  SCHIMP.  1842,  is 
a  close  ally  of  ruralis  resembling  our  Var.  ft.  but  has  a  green  nerve  running 
out  into  a  reddish  brown  rigid  arista  only  faintly  spinulose.  It  is  confined  to 
mountain  regions,  but  may  turn  up  here  as  it  reaches  to  the  Dovrefjeld  and 
Lapland. 


TORTULACE.E.]  227  \Pleurodicete. 

2i.  TORTULA  PRINCEPS  De  Not. 

Synoicous ;  tall,  rufescent.  Leaves  patent,  broadly  oblong-ovate, 
obtuse,  nerve  excurrent  in  a  slender  spinulose  arista.  Caps,  erect, 
cylindric  ;  peristome  with  a  long  tube.  (T.  XXXIII,  C.) 

SYN.— Tortula  princeps  DE  NOT.  in  Mem.  ac.  Torin.  xl,  288  (1838),  Syllab.  170  (1838),  Muse. 

ital.  I,  33,  t.   13   (1862),  Epil.  bri.  ital.  537  (1869).     LINDB.  de  Tortulis  247  (1864). 

HOBK.  Syn.  br.  m.  70  (1873). 
Syntrichia  Mueller i  BRUCH  MSS. 
Barbula  Muelleri  BR.   SCHIMP.   Bry.  eur.  fasc.  13—16,  Mon.  44,  t.  28  (1842).     SCHIMP. 

Synops.   192   (1860),  2  ed.  232.     HUSN.  Mouss.  nord-ouest  87  (1873).     LESQ.  JAMES 

Mosses  N.  Amer.  133  (1884). 

Barbula  princeps  C.  MUELL.  Synops.  i,  636  (1849). 

Tortula  Muelleri  WILS.  Bry.  br.  134,  t.  44  (1855).     BERK.  Handb.  br.  m.  250  (1863). 
Syntrichia  princeps    MITT.   Journ.    Lin.    soc.    i,    Suppl.    39    (1859).      JURATZ.    Laubm. 

oesterr.-ung.  145  (1882). 

Synoicous  and  polygamous ;  in  tall  lax  ferruginous  brown  tufts. 
Stems  repeatedly  interrupted  by  innovations,  dense-leaved,  radiculose 
at  base.  Leaves  imbricated  patent,  when  dry  appressed  and  complicate, 
rosulate  at  apex  of  innovations,  broadly  oblong-ovate,  obtuse,  concave, 
carinate  in  the  middle,  the  margin  subrevolute  in  the  lower  half;  nerve 
rufous,  excurrent  in  a  slender  hyaline  faintly  spinulose  arista  ;  cells  at 
base  lax,  pellucid,  above  quadrate,  not  opake,  soft,  papilloso-scabrous. 
Caps,  on  a  red  flexuose  seta,  cylindraceous,  arcuate,  brown ;  annulus  of 
a  double  series  of  cells,  lid  elongato-conic ;  per.  pale,  the  lower  half 
tubular,  obscurely  tessellated,  teeth  red. 

Male  infl.  mixed  with  the  female  or  sometimes  with  female  infl.  also 
on  the  same  plant. 
HAB. — On  rocks,  walls  and  sometimes  trunks  of  trees  ;  rare.     Fr.  4 — 5. 

Menstrie  glen,  Ochils  (Greville  1855).  Blair  Atholl  (Miss  Mcjnroy  1859)  !  !  Craiglockart, 
near  Edinburgh  (Dr.  B.  White  1865)  !  Ram  rocks,  Ben  Wyvis  (Howie  1864) !  On  the 
Cruise,  Brechin  and  Menmuir  (Rev.  M.  Anderson  1869)  !  Kirriemuir  and  Loch  mill, 
Forfar  (Rev.  J.  Fergusson  1866)  !  !  Raith,  Kirkcaldy,  Fife,  on  weathered  trap  (Ewing 
1885)  !  !  Deer  park,  Glenarm,  Antrim  and  Benbulben,  Sligo  (.Moore). 

This  fine  moss  is  easily  known  by  its  interrupted  stem,  and  dense  soft 
broad  rusty-coloured  leaves  ;  its  head  quarters  is  the  Mediterranean  basin. 


6.  PLEUROCH^TE  LINDB. 

Oefv.  af  kong.  Vet.  akad.  foerh.  xxi,  253  (1864). 

Perichaetia  axillary,  with  the  bracts  accrescent  inward.  Fruit  on 
an  elongated  seta,  resembling  that  of  Tortula,  lateral,  peristome  scarce 
twisted.  Leaves  with  a  vaginant  hyaline  base,  stellato-comant,  serrate. 
Inhabiting  barren  stony  places,  especially  near  the  sea.  Der. 
the  side,  x^rr)  a  seta. 


TORTULACE.E.;1  228  [Mollitt. 

PLEUROCiLZETE   SftUARROSA  (Brid.}  Lindb. 

Dioicous ;  laxly  tufted.  Leaves  squarrose  from  a  broad  sheathing 
base,  lanceolate,  serrate  at  point.  Setae  lateral,  caps,  subcylindric. 
(T.  XXXIII,  D.) 

SYN. — Barbula  squarrosa  BRID.  Bry.  univ.  i,  833  (1827).  BRUCH  SCHIMP.  Bry.  eur.  f.  31, 
Suppl.  t.  i  (1846).  C.  MUELL.  Synops.  i,  601  (1849).  SCHIMP.  Synops.  180  (1860), 
2  ed.  221.  BERTOL.  Fl.  ital.  cr.  207  (1858).  MILDE  Bry.  siles.  124  (1869).  HUSN. 
mouss.  nord-ouest  84  (1873).  JURATZ.  Laubm.  oesterr.-ung.  124  (1882).  LESQ.  JAMES 
Mosses  N.  Amer.  130  (1884). 

Tortilla  squarrosa  DE  NOT.  in  Mem.  ac.  Torin.  xl,  321  (1838),  Syllab.  180  (1838),  Muse, 
ital.  I,  61,  t.  31  (1862).  SPRUCE  in  HOOK.'  L.  journ.  iv,  193  (1845),  et  Ann.  Mag.  n.  h. 
2  ser.  iii,  377  (1849).  WILS.  Bry.  brit.  126,  t.  33  (1855).  MITT.  Journ.  Lin.  soc.  i, 
Suppl.  27  (1859).  BERK.  Handb.  br.  m.  255  (1863).  HOBK.  Syn.  br.  m.  74  (1873). 

Pleurochate  squarrosa  LINDB.  de  Tort.  253  (1864).     DE  NOT.  Epil.  bri.  ital.  560  (1869). 

Dioicous  ;  laxly  and  irregularly  caespitose,  tufts  yellow-green  above, 
fuscescent  at  base,  fragile,  not  tomentose.  Stem  simple  or  dichoto- 
mous.  Leaves  comant  at  apex  of  stem,  from  a  broad  sheathing  base, 
recurvo-  and  incurvo-squarrose,  flaccid  and  cirrato-crispate  when  dry, 
elongate-lanceolate,  subundulate  at  margin,  serrate  above,  nerve  thick, 
vanishing  at  apex  or  excurrent ;  areolation  minute,  chlorophyllose  and 
rectangular  above  and  at  mid  base,  very  finely  papillose,  at  sides  of  base 
thin  lax  and  hyaline.  Perichsetia  numerous,  lateral,  the  bracts  shorter, 
semivaginant,  reflexed  :  seta  red  below,  yellowish  above,  calyptra  very 
narrow,  fugacious,  caps,  erect,  cylindraceous,  subarcuate,  deep  rufous, 
annulus  narrow  of  a  single  series  of  cells,  lid  conico-subulate,  per.  pale 
purple,  twice  convolute,  fugacious,  teeth  very  slender,  short-jointed, 
strongly  papillose. 
HAB. — Bare  stony  ground  on  the  south  coast  and  in  chalky  fields.  Fr.  5 — 6. 

Beeding  chalk-pit,  Sussex  (Borrer).  Shoreham  beach  (Wilson  1837) '  '  Woolsonbury 
hill  (Mitten).  Between  Brighton  and  Newhaven  (Davics  1868)  !  !  Tothill,  Plymstock, 
St.  Minver  and  Berryhead  (Holmes)  !  !  Minehead,  Somerset  (Boswell  1867)  !  !  Holton, 
Oxford  (Boswell)  \  \  Portmarnock,  Dublin  (Taylor).  Arklow,  Wicklow  (Moore).  Win- 
chelsea  (Holmes).  Ballard  down,  Swanage  (Holmes).  Lathkill  dale,  Derbyshire 
(Whitchcad  1882)  !  !  Holton  stone  pits,  Oxford  (Boswell)  !  ! 

For  the  beautiful  fertile  specimen  figured,  I  am  indebted  to  my  friend 
Mr.  Boswell,  in  this  country  it  is  always  sterile.  There  is  something  in  the 
look  of  the  plant  very  different  from  all  our  other  species  and  approaching 
that  of  Leptodontium. 

7.  MOLLIA  SCHRANK. 

Baiers.  Fl.  ii,  455  (1789). 

Plants  dwarf  or  tall,  caespitose  or  pulvinate,  dichotomously 
branched.  Leaves  lanceolate,  papillose,  bright  or  dark  green,  usually 
crisped  or  contorted  when  dry,  the  areolation  lax  and  hyaline  at  base, 
minute  obscure  and  chlorophyllose  above.  Capsule  in  a  few  cases 


TORTULACE^E.1  22Q  [Mollia. 

with  an  adherent  lid,  or  gymnostomous,  the  mouth  being  sometimes 
closed  by  a  membrane,  or  with  a  peristome  consisting  of  a  narrow 
basal  membrane  supporting  16  teeth,  more  or  less  developed,  papillose, 
cleft  to  base  into  two  equal  or  irregular  legs,  straight  or  occasionally 
contorted.  Inhabiting  the  ground,  walls  or  rocks. — Der.  after  K.  E. 
von  Moll,  Archbishop  of  Salzburg,  author  of  "  Naturhist.  Briefe  ueber 
Salzburg"  (1785). 

The  genus  Mollia,  founded  by  Schrank  as  an  equivalent  to  Tortula  or 
Barbula,  may  well  be  retained  for  this  group,  as  Trichostomum  was  established 
by  Hedwig  in  1782,  for  the  section  of  Grimmia  named  Rhacomitrium  and  some 
species  of  Ditrichum,  and  it  was  not  until  more  than  20  years  after  this 
that  any  of  the  species  now  referred  to  Trichostomum  were  brought  into  it. 

Taken  as  a  whole,  we  must  look  upon  the  genus  Mollia  as  an  eminently 
natural  one,  ascending  from  several  little  phascoid  mosses,  through  a  series 
of  closely  allied  forms,  to  the  taller  species  culminating  in  M.  tortuosa,  all 
marked  by  their  narrow  opake  papillose  leaves,  curled  or  twisted  when  dry, 
and  a  peristome  of  one  common  type,  presenting  various  stages  of  develop- 
ment. A  little  study  of  the  species  will  soon  convince  the  student  that 
Systegium,  Weissia,  Gymnostomum,  Didymodon,  Hymenostomum,  Eucladium,  Gyro- 
weissia,  Leptobarbula  have  no  sound  basis  as  genera,  but  may  be  readily 
distributed  in  the  three  sections  adopted. 

Hymenostomum  stands  to  Mollia  almost  exactly  in  the  same  relation  as 
Pottia  does  to  Tortula,  and  we  see  in  the  species  it  includes,  only  miniatures 
of  the  larger  forms  of  the  third  section,  and  just  as  closely  allied  to  each  other 
as  certain  Pottias  are. 

In  Tovtella  a  very  important  character  may  be  noticed  in  the  relation  of  the 
two  kinds  of  cells  composing  the  leaf  base,  in  some  species  the  white  thin 
elongated  hyaline  cells  meet  the  small  chlorophyllose  cells  at  the  same  level 
from  nerve  to  margin,  in  others  at  a  certain  height,  the  hyaline  cells  leave  the 
nerve  and  ascend  obliquely  outward  to  the  margin,  so  that  the  demarcation 
between  the  two  is  very  distinct. 

Besides  the  continental  species  incidentally  referred  to  in  the  text, 
the  second  edition  of  Schimper's  Synopsis  contains  a  number  of  others, 
both  in  this  genus  and  the  last,  which  it  may  be  useful  to  enumerate,  as  atten- 
tion is  thus  drawn  to  them,  though  except  Tortula  cernna  and  inermis,  it  is  not 
probable  that  any  of  them  will  be  met  with  here. 

Under  Tortula  in  the  section  Dcsmatodon,  we  find  T.  squamigera  (Viv.), 
B.  membranifolia  SCHULTZ, —  T.  crassinervis  DE  NOT.,  B.  chloronotos  B.  &  S. — 
Guepini  B.  &  S. — anomala  (B.  &  S.) — barbuloides  (BwnJ—fiexiseta  (BRUcn.)  — 
systylia  (B.  &  S.) — latifolia  (HEDW.) — cernua  (HUEBEN.), — limbata  (LiNDB.) — 
obtusifolia  SCHLEICH.  D.  flavicans  (B.  &  S.),—Solmsii  SCHIMP.  the  last  three 
near  7.  marginata ;  in  Zygotrichia,  T.  Lauveri  (SCHULTZ)  and  T.  suberecta 
HOOK.,  D.  obliquus  B.  &  S.  and  in  Syntrichia,  T.  alpina  (B.  &  S.) 

Under  Mollia  in  Sect.  Hymenostomum,  we  have  M.  muralis  (SPRUCE). — 
crispata  (NEES  HORNSCH.), —  Wimmeri  (SENDTN.), —  Welwitschii  (ScniMP.), — 
triumphans  (DE  NOT), — Monspeliense  (SCHIMP.) — berica  (Ds  NOT.), — meridionalis 
and  Winteri  (SCHIMP.)  ;  in  Eucladium,  M.  reflexa  (BRID.)  near  tenuis, — Philiberti 


TORTULACE.E.]  230  [Mollia. 

(ScmMP.)—pallidiseta  (H.  MUELL.),— undata  (ScniMP.),  all  near  M.crispula,  and 
cuspidata  (ScniMP.),  and  Bambergeri  (ScniMP.),  near  brachydontia ;  in  Tortella, 
M.  humilis  (HEDW.),  B.  caspitosa  (SCHWAEG.)  near  flavo-virens,  and  inflexa 
(BRUCH),  near  inclinata. 

It  is  very  probable  that  several  of  these,  on  careful  examination,  will 
not  be  able  to  hold  their  ground  as  species. 

CLAVIS  TO  THE  SPECIES. 

Sect.  i.  HYMF.NOSTOMUM.  Plants  small,  nearly  simple;  leaves  linear  or  lanceolate; 
caps,  with  a  persistent  lid,  or  closed  by  an  epiphragm,  or  gymnostomous,  or  with  a  peristome  of 
16  small  teeth. 

Capsules  immersed,  lid  not  falling  off. 

Leaves  lanceolate-subulate,  with  involute  margins.  crispa. 

Leaves  lanceolate  acute,  with  plane  margins. 

Leaves  recurved,  perich.  bracts  long  erect.  multicapsularis. 

Leaves  patent,  perich.  bracts  shorter  spreading.  Mittenii. 

Capsule  exserted,  lid  falling  off. 
Leaves  with  plane  margins. 

Capsule  not  elevated  above  perich.  bracts.  rostellata. 

Capsule  elevated  on  a  longer  seta. 

Gymnostomous,  leaves  squarrose.  squarrosa. 

Peristomate,  leaves  erecto-patent.  rutilans. 

Leaves  with  involute  margins. 

Gymnostomous,  slightly  branched,  lax  leaved.  inicrostoma. 

repeatedly  branched,  dense  leaved.  tortilis. 

Peristomate,  leaves  linear-lanceolate.  viridula. 

Sect.  2.  EUCLADIUM.     Plants  larger,  dichotomously  branched ;  leaves  accrescent  upward 
and  comant,  fragile,  thick  nerved ;  peristome  O,  or  of  16  slender  papillose  teeth. 
Nerve  vanishing  below  apex. 

Stem  short,  leaves  lingulate  obtuse. 

Loosely  matted,  lid  conical.  tenuis. 

Densely  pulvinate,  lid  rostrate.  calcarea. 

Stem  elongated,  leaves  linear-lanceolate,  rather  obtuse.  ceruginosa. 

Nerve  excurrent. 

Leaf  with  basal  margin  serrate.  verticillata. 

Leaf  with  basal  margin  entire. 

Apex  cucullate,  boat  shaped.  crispula. 

flat,  obtuse  mucronate.  litoralis. 

flat,  acute  acuminate.  brachydonila. 

Sect.  3.  TORTELLA.  Plants  robust,  dense-leaved ;  leaves  long,  cirrhato-crispate  when 
dry,  hyaline  at  base.  Peristome  of  longer  teeth,  sometimes  twisted. 

Basal  hyaline  cells  not  extending  higher  up  the  margin  than  at  the  nerve. 

Leaves  long  linear  undulate,  base  equal,  margin  coarsely  crenulate.        tenuirostris. 
Leaves   shorter  lanceolate   subulate,   not  undulate,  base  wider  upward, 

margin  entire.  hibernica. 

Basal  hyaline  cells  ascending  higher  at  the  margin. 

Apex  of  leaf  obtuse,  cucullate.  flavo-mrens. 

Apex  of  leaf  acute. 

Leaves  short  with  short  points. 

Leaves  rigid,  with  reddish  nerve,  arcuato-incurved  when  dry.    nitida. 
Leaves  soft,  with  green  nerve,  cirrhato-crispate  when  dry.        inclinata. 
Leaves  long  with  lanceolate-subulate  points. 

Leaves  flexuose,  flaccid,  undulate.  tortuosa. 

Leaves  erect  rigid,  straight.  fragilis. 

Sect.  i.  HYMENOSTOMUM  (Brown).  Plants  small,  simple  or  with 
a  few  innovations  ;  leaves  linear  or  lanceolate.  Capsule  phascoid  with  a 
persistent  lid,  or  exserted  and  gymnostomous  with  or  without  an  epiphragm, 
or  with  a  peristome  of  16  more  or  less  perfect  lanceolate  teeth. 


TORTULACE^.]  231  [Mollia. 

i.  MOLLIA  CRISPA  (Hedw.)  Lindb. 

Autoicous,  csespitulose,  branched  at  apex.  Perich.  bracts  lanceo- 
late-subulate, carinate,  with  involute  margins,  crisped  when  dry.  Caps, 
spherical,  immersed,  lid  minute,  persistent.  (T. XXXIII,  E.) 

SYN.— Phascum  crispum  HEDW.  Fund.  muse.  II,  85  (1782),  Muse,  frond,  i,  25,  t.  9  (1787).  Sp. 
muse.  21  (1801).  SCHRANK  Bayer,  fl,  ii,  433  (1789).  HOFFM.  Deutsch.  fl.  ii,  20  (1795). 
BRID.  muse.  rec.  II,  P.  I,  19  (1798),  Sp.  muse.  I,  10,  (1806),  Mant.  9  (1819),  Bry.  univ. 
i,  46  (1826).  ROTH  Fl.  germ,  iii,  P.  I,  in  (1800).  ROEHL.  Moosg.  deutsch.  34  (1800', 
Ann.  Wett.  ges.  i,  139  (1809),  Deutsch,  fl.  iii,  34  (1813).  DICKS.  PI.  crypt,  fasc.  IV,  2 
(1801).  SMITH  Fl.  brit.  iii,  1151  (1804),  Eng.  Bot.  t.  1680.  TURN.  Muse.  hib.  2  (1804). 
P.  BEAUV.  Prodr.  82  (1805).  SCHULTZ  Fl.  starg.  274  (1806).  WEB.  MOHR  Bot.  Tasch. 
64  et  477  (1807).  SCHKUHR  Deutsch.  kr.  gew.  P.  II,  6,  t.  2  (1810).  SCHWAEG.  suppl. 

1,  P.   I,   i   (1811).     VOIT   Muse.  herb.  5  (1812).      LA  PYL.  Journ.  Bot.  1813,  p.  281. 
MART.  Fl.  crypt,  erl.  125  (1817).     HOOK.  TAYL.  Muse.  brit.  6,  t.  5  (1818).    CASSEB.  Ann. 
Wett.  ges.  iv,  94   (1819).      HOOK.  Fl.  scot.   P.  II,   121   (1821).   Br.  flora  ii,  2  (1833). 
FUNCK  Moostasch.  i,  t.  i  (1821).     GRAY  Nat.  arr.  br.  pi.  i,  711   (1821).      NEES  HNSCH. 
Bry.  germ,  i,  57,  t.  4,  f.  13  (1823).     HUEBEN,  Muse.  germ.  7  (1833).     MACK.  Fl.  hib.  P. 

2,  7   (1836).      BR.  Sen.  Bry.  eur.   fasc.    i,  p.   13,  t.  6  (1837).     DE  NOT.  Syllab.  308 
(1838).     R*BENH.  Deutsch.  kr.  fl.  ii,  S.  3,  81  (1848).     C.  MUELL.  in  Bot.  zeit.   1847,  p. 
98  ;    Synops.   I,  24  (1849).       WILS.   Bry.  brit.  37,  t.  5   (1855).       HOBK.  Syn.  br.   m. 
30  (1873). 

Astomum  crispum  HAMPE  Bot.  zeit.  1832.     SCHIMP.  Bry.  eur.  fasc.  43,  t    i   (1850).     JAEG. 

Ber.  st.  Gall.  nat.  ges.  1869,  p,  69.     LESQ.  JAMES  Mosses  N.  Amer.  51  (1884). 
Weissia  crispa  MITT.  Ann.  mag.  n.  h.  2  ser.  viii,  316  (1851).     LINDB.  de  Tort.  230   (1864). 

MILDE  Bry.  siles.  43  (1869). 
Weissia  longifolia  MITT.  op.  c.  317. 
Systegium  crispum  SCHIMP.  Synops.  31  (1860).     BERK.  Handb.   br.  m.  296   (1863).      DE 

NOT.  Epil.  bri.  ital.  740  (1869).     HUSN.  Mouss.  nord-ouest  37  (1873),  Muscol.  gall.  4,  t. 

i  (1884).    JURATZ.  Laubm.  oesterr.-ung.  7  (1882). 
Simophyllum  crispum  LINDB.  Rev.  crit.  ic.  fl.  dan.  38  (1871). 
Mollia  crispa  LINDB.  Muse,  scand.  22  (1879). 

Autoicous,  gregarious  or  csespitulose,  fastigiate,  branched  at  top, 
dull  green.  Leaves  cirrhoso-crispate  when  dry,  erecto-patent  when 
moist,  cauline  distant,  lanceolate,  short,  upper  densely  comant,  long 
lineal-lanceolate,  densely  and  minutely  papillose  at  back,  margin 
involute,  nerve  strong,  excurrent  in  a  mucro,  basal  cells  smooth, 
hyaline,  elongate  hexagonal,  upper  minute  roundish  quadrate,  obscure. 
Caps,  immersed,  subglobose,  fuscous,  lid  minute,  conic,  easily  separable. 

Male  infl.  gemmiform,  near  the  top  of  stem,  bracts  ovato-lancolate, 
acute. 

HAB. — By  the  edge  of  paths  in  woods  and  clay  fields,  especially  in  calcareous 
districts;  not  uncommon.     Fr.  4 — 5. 

Frequent  in  Surrey  and  Sussex.     Darlington  (Backhouse).      Beverley,  Yorks.  (Teesdale). 
Bedford  (Abbot).     Kilcullen  bridge,  Ireland  (Brown).     Plymouth  (Holmes). 

Var.  (3.  aciculata  (Mitt.) 

Plants  more  slender  ;  perich.  bracts  more  attenuated,  very  acute,  the 
margins  erect,  not  involute.  Caps,  almost  sessile  and  covered  by  the  bracts, 
lid  shorter. 

SYN. — Weissia  aciculata  MITT.  Ann.  mag.  n.  h.  2  ser.  viii,  318  (1851). 
HAB. — Roadside  at  Hurstpierpoint  (Mitten) ! 


232  [Mollia. 

In  this  little  moss  we  have  the  first  departure  from  the  cleistocarpous 
state,  where  the  operculum  is  organically  united  with  the  capsule  wall,  for 
although  in  M.  crispa  the  lid  does  not  fall  off,  a  very  slight  lateral  pressure 
when  moist  is  sufficient  to  remove  it.  The  large  perich.  bracts  are  charac- 
teristic of  this  and  the  next  two  species. 

2.  MOLLIA  MULTICAPSULABJS  (S;«.) 

Autoicous  ;  laxly  tufted,  tall,  ascending.  Leaves  distant,  spreading, 
recurved,  lanceolate,  with  plane  margins ;  perich.  long,  slender,  erect. 
Caps,  roundish  ovate,  immersed,  rostellate.  (T.  XXXIII,  F.) 

SYN. — Phascum  sphcerocarpon  ABBOT  Fl.  Bedf.  230  (1798). 
Phascum  crispum  SMITH  Eng.  Bot.  t.  618  (1799). 
Phascum   multicapsularc   SMITH   Fl.  brit.  iii,  1152  (1804).      BRID.   Sp.   muse.  I,  10  (1806), 

Mant.   10  (1819),  Bry.  univ.  i,  48  (1826).      LA  PYL.  Journ.   Bot.  1813,  p.  281.      WILS. 

Bry.  brit.  37,  t.  37  (1855). 

Phascum  crispum  /8.  multicapsulare  HOOK.  TAYL.  Muse.  Brit.  6  (1818). 

Astoinum  multicapsulare  SCHIMP.  Bry.  eur.  fasc.  43,  t.  3  (1850).  JAEG.  Ber.  St.  Gall.  nat. 

gesells.  1869,  p.  70. 
Weissia  multicapsularis  MITT,  in  Ann.  mag.  n.  h.  2  ser.  viii,  317  (1851).     LINDB.  de  Tort. 

230  (1864). 

Weissia  convolutacea  MITT.  MSS.  (Perich.  bracts  convolute  at  base). 
Systegium   multicapsularc   SCHIMP.   Synops.   33  (1860).     BERK.  Handb.  br.  m.  297  (1863). 

HUSN.  Mouss.  nord-ouest  38  (1873),  Muse.  gall.  5,  t.  i  (1884). 

Autoicous  ;  laxly  tufted  or  gregarious,  dingy  green.  Stems  £— J  in. 
high,  from  a  procunbent  base,  erect,  simple  or  dichotomous,  with 
flexuose,  small  leaved  innovations.  Stem-leaves  distant,  patulous, 
recurved  from  the  middle,  flexuose,  flaccid,  oblongo-  and  elongato- 
lanceolate,  apiculate,  margin  plane,  comal  leaves  and  perich.  bracts 
much  longer,  incurved  and  slightly  crisped  when  dry,  erect,  lineal-lane, 
plane,  channelled  in  the  middle,  lurid  green,  nerve  dilated  at  base, 
semiterete  above,  vanishing  in  apex  or  slightly  excurrent.  Caps, 
immersed  ovato-elliptic,  lid  subobliquely  rostellate.  Male  infl.  terminal 
on  a  branch,  gemmiform. 
HAB. — Clay  fields  and  bare  ground  ;  rare.  Fr.  3. 

Clapham  park  wood  and  Ampthill,  Bedford  (Abbott  1798).  Appleton,  Cheshire  (Wilson 
1836)  !  !  Darlington  (Backhouse}.  Hurstpierpoint  (Mitten)  \  Railway  bank  at  Ashley 
(Hunt  1870)  !  Leckhampton  hill,  Chelmsford.  Sutton  park,  Warwick  (B  agnail  1877) !  ! 

Differs  from  crispa  by  its  size  and  dingy  colour,  the  perich.  bracts  broader 
and  longer,  straight,  lanceolate,  less  crisped  when  dry,  more  suddenly  subulate 
from  a  dilated  base  ;  occasionally  two  capsules  are  found  in  one  perichaetium, 
but  the  specific  name  is  certainly  not  an  apt  one. 

The  plant  has  the  shabby  dirty  look,  often  seen  in  Archidium. 

3.  MOLLIA  MITTENII  (Br.  Sch.)  Braithw. 

Autoicous  and  polygamous,  taller.  Leaves  broadly  lane,  recurved, 
more  rigid,  nerve  vanishing  at  apex,  perich.  bracts  lanceolate,  shorter, 
divergent.  Caps,  ovate.  (T.  XXXIII,  G.) 


TORTULACE^.J  233  [Mollia. 

SYN.  —  Astomum  Mittcnii  BR.  SCH.  Bry.  eur.  fasc.  43,  t.  2  (1850).  JAEG.  Ber.  St.  Gall.  nat. 
gesells.  1869,  p.  70. 

Hymenostomum  sphcericarpon  MITT,  in  lit. 

Weissia  Mlttenii  MITT.  Ann.  Mag.  n.  h.  2  ser.  viii,  317  (1851). 

Phascum  multicapsulare  Var.  ft.  Mittenii  WILS.  Bry.  brit.  37  (1855). 

Systegium  Mittenii  SCHIMP.  Synops  32  (1860).     BERK.  Handb.  br.  m.  297  (1863). 

Autoicous  and  polygamous  ;  stem  taller,  flexuoso-erect,  simple  or 
branched,  brownish.  Leaves  squarrose  and  recurved,  rigid,  broadly  lane. 
the  comal  few  lineal-lane,  shorter,  divergent,  margin  not  involute,  nerve 
thick,  terete,  fuscous,  vanishing  in  the  apex;  perich.  bracts  lanceolate, 
thinner  with  a  narrower  nerve.  Caps,  emergent,  on  a  longer  pale  pedicel, 
solitary,  ovate,  lid  minute,  conic  rostellate.  Male  at  base  of  fertile 
innovation. 
HAB.  —  Clay  banks  at  Hurstpierpoint,  and  in  a  stubble  field  at  Little-ease 

(Mitten  1846)  !     Fr.  3. 

This  differs  from  M.  multicapsulans  by  the  shorter  more  rigid  leaves, 
scarcely  curling,  the  perich.  bracts  fewer,  shorter,  patent  from  the  middle, 
broader  and  thinner,  the  shorter  caps,  with  larger  spores.  The  force  of  Mr. 
Wilson's  reasoning  that  this  is  a  var.  of  M.  multicapsulans,  because  the 
following  year  that  species  only  was  found,  is  not  apparent. 

4.  MOLLIA  EOSTELLATA  (Brid.)  Lindb. 

Autoicous  ;  in  small  tufts.  Leaves  linear-lane,  spreading,  crisp  when 
dry,  mucronate  with  the  excurrent  nerve,  margin  plane.  Caps,  elliptic, 
rostellate,  scarcely  exserted.  (T.  XXXIV,  A.) 

SYN.  —  Phascum  rostellatum  BRID.  Mant.  n  (1819),  Bry.  univ.  i,  46  (1826).  NEES  HORNSCH. 
Bry.  germ,  i,  59,  t.  6,  f.  14  (1823).  SCHWAEGR  Suppl.  Ill,  P.  II.  t.  296  (1830).  BR. 
SCHIMP.  Bry.  eur.  fasc.  i,  p.  13,  t.  6  (1837).  RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  83  (1848). 
C.  MUELL.  Syn.  i,  24  (1849).  WILS.  Bry.  brit.  38,  t.  38  (1855).  HOBK.  Syn.  br.  m.  31 


Hymenostomum    microstomum  /?.  mutilatiint  HUEBEN.  muse.  germ.  67  (1833). 
Hymenostomum  obliquumWiLS.  Eng.  Bot.  Suppl.  t.  2831. 

Hymenostomum  phascoides  WILS.  MSS.  SCHIMP.  Bry.  eur.  fasc.  42,  t.  i  (1850). 
Astomum  rostellatum  SCHIMP.  Bry.  eur.  fasc.  43,  t.  i  (1850). 

Gymnostomum  rostellatum  SCHIMP.  Synops.  33  (1860).     BERK.  Handb.  br.  m.   296  (1863). 
HUSN.  mouss.  nord-ouest  39  (1873). 

Hymenostomum  rostellatum  SCHIMP.  Synops.  2  ed.  33   (1876).     HUSN.  muse,  gall  5,  t.  2 

(1884). 
Weissia  rostellata  LINDB.  De  Tort.  230  (1864).     MILDE  Bry.  siles.  43   (1869).    JURATZ. 

Laubm.  oesterr.-ung.  8  (1882). 
Mollia  rostellata  LINDB. 

Autoicous  ;  in  small  lax,  dingy  green  tufts,  i  —  3  lines  high.  Leaves 
spreading,  entire,  crisped  when  dry,  lower  lane,  upper  linear-lane,  long, 
erecto-patent,  flexuose,  nerve  excurrent  in  a  short  mucro,  margin  plane, 
cells  at  base  hexagono-rectang.  narrow  at  margin,  above  minute, 
quadrate,  opake,  minutely  papillose  on  both  sides.  Caps,  not  elevated 
above  perich.  bracts,  olive  brown,  elliptic,  obliquely  rostellate. 

Male  infl.  gemmiform. 


TORTULACEJE.]  234  [MoUia. 

HAB.  —  Dried  mud  at  edge  of  pools  ;  rare.     Fr.  10  —  3. 

Mere,  Cheshire  (Wilson  1834)  '  '     Newcastle  Town-moor  (Robinson  and  Thornhill).     Edge 
of  a  fishpond  at  Hurstpierpoint  (Mitten  1847)  •  •     Weald  of  Sussex  (Davies  1872)  !  ! 

This  little  moss  bears  fruit  richly,  and  carries  us  onward  a  step  higher 
from  the  cleistocarpous  mosses  to  those  with  a  dehiscent  lid  and  peristome. 
Like  other  similar  species  it  often  disappears  altogether  from  the  locality  it 
occupied. 

5.  MOLLIA  MICROSTOMA  (Hedw.)  Lindb. 

Autoicous  ;  in  short  dense  tufts.  Leaves  lanceolate,  crisped  when 
dry,  acute,  nerve  excurrent,  margin  incurved.  Caps,  elliptic,  contracted 
at  the  mouth,  closed  by  a  perforated  membrane,  lid  obliquely  rostrate 
(T.  XXXIV,  B.) 


SYN.  —  Gymnostomum  microstomum  HED-W.  Stirp.  Cr.  iii,  71,  t.  30,  B  (1792),  Sp.  muse.  33  (1801). 
HOFFM.  Deutsch.  fl.  ii,  29  (1795).  BRID.  Muse.  rec.  II,  P.  I,  44  (1798),  Sp.  Muse.  I,  33 
(1806),  Mant.  15  (1819).  SWARTZ  Muse.  Suec.  21  (1799).  ROEHL.  Moosg.  deutsch.  79 
(1800).  ROTH  Fl.  germ,  iii,  P.  I,  128  (1800).  SMITH  Fl.  brit.  iii,  1165  (1804),  Eng.  Bot. 
t.  2215.  P.  BEAUV.  Prodr.  59  (1805).  SCHULTZ  Fl.  starg.  279  (1806).  WEB.  MOHR 
Bot.  Tasch.  85  (1807).  SCHWAEGR.  Suppl.  I,  P.  I,  28  (1811).  HOOK.  TAYL.  Muse.  brit. 
13,  t.  7  (1818).  HARTM.  Skand.  fl.  283  (1820).  GRAY  Nat.  arr.  br.  pi.  i,  716  (1821). 
FUNCK  Moost.  7,  t.  4  (1821).  HOOK.  Fl.  scot.  P.  II,  123  (1821),  Br.  Fl.  ii,  10  (1833). 
MACK.  Fl.  hib.  P.  2,  p.  ii  (1836).  WILS.  Bry.  brit.  44,  t.  7  (1855).  SCKIMP.  Synops. 
34  (1860).  BERK.  Handb.  br.  m.  295  (1863).  HUSN.  Mouss.  nord-ouest  39  (1873). 
HOBK.  Syn.  br.  m.  33  (1873). 

Bryum  microstomum  DICKS.  PI.  crypt.  Fasc.  IV,  9  (1801). 

Hymenostomum  microstomum  R.  BROWN  Trans.  Linn.  Soc.  xii,  572  (1819).    NEES  HORNSCH. 

Bry.  germ,  i,  139,  t.  12,  f.  4  (1823).     BRID.  Bry.  univ.  ii,  77  (1827).    HUEBEN.  Muse.  germ. 

67  (1833).     DE  NOT.  Syllab.  293  (1838).     Epil.  bri.  ital.  607  (1869).     BR.   SCHIMP.  Bry. 

eur.  fasc.  33—  36,  p.  4,  t.  i  (1846).    RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  123  (1848).   SCHIMP. 

Synops.  2  ed.  34  (1876).     HUSN.  Muse.  Gall.  6,  t.  2  (1884). 
Weisia  microstoma  C.   MUELL.  Synops.  i,  660  (1849).      Fl.  danica  t.  2612,  fig.  i.     LINDB. 

De  Tort.  230  (1864).      MILDE  Bry.  siles.  44  (1869).    JURATZ.   Laubm.  oesterr.-ung.  9 

(1882). 

Simophyllum  microstomum  LINDB.  Rev.  crjt.  icon.  fl.  dan.  74  (1871). 
Mollia  microstoma  LINDB.  Muse,  scand.  22  (1879). 

Autoicous  ;  densely  tufted,  lurid  green.  Leaves  lanceolate  from  an 
erect  base,  patent,  twisted  and  crisped  when  dry,  comal  elongato-lanc. 
concave,  the  margin  incurved,  mucronate  with  the  excurrent  nerve  ; 
cells  at  base  elongate  hexagonal,  above  minute,  opake.  Caps,  exserted 
on  a  yellowish  seta,  oval  or  elliptic,  equal  or  gibbous,  olivaceous  when 
filled  with  spores,  pale  brown  when  empty,  mouth  very  narrow,  the 
closed  orifice  finally  perforated  in  the  centre  ;  lid  paler,  more  or 
less  elongated,  acute  obliquely  rostrate,  annulus  simple.  Male  infl. 
near  the  female,  gemmiform. 
HAB.  —  On  banks  and  barren  fields,  not  uncommon.  Fr.  3  —  4. 

Var.  ft.  obliqua  (Nets  Hornsch.) 

Plants  shorter  with  a  shorter  seta  ;  caps,  asymmetric,  incurved,  lid  more 
conical. 

SYN.—  Hymenostomum  obliqutim  NEES  HORNSCH.  Bry.  germ.  194,  t.  12,  f.  2.      BRID.  Bry.  univ. 

»»  75- 
H.  microstomum  Var.  (3.  obliquum.  Bry.  eur. 


TORTULACE^.]  235  [Mollia. 

HAB.— Helk's  wood,  Ingleton  (Nowell  1850)  !   ! 

The  leaves  of  this  species  closely  resemble  those  of  M.  viridula,  and  it  is 
only  by  the  small  mouth  of  the  capsule  closed  by  the  epiphragm  that  they  can 
be  separated  ;  yet  a  character  of  such  trivial  weight  is  still  used  to  establish 
genera,  and  separate  species  having  the  closest  natural  affinity. 


6.  MOLLIA  SQUARROSA  (Nees  Hornsch.)  Lindb. 

Autoicous :  in  small  lax  tufts.  Leaves  squarrose,  lanceolate, 
broader  with  plane  margins.  Caps,  elliptic,  lid  conico-rostellate. 
(T.  XXXIV,  C.) 

SYN. — Hymenostomiim  squarrosum  NEES  HORNSCH.  Bry.  germ,  i,  193,  t.  12,  f.  i  (1823).  BRID. 
Bry.  univ.  ii,  74  (1827).  HUEBEN.  Muse.  germ.  69  (1833).  BR.  SCHIMP.  Bry.  eur.  fasc. 
33- -36,  p.  5,  t.  2  (1846).  RAB^.NH.  Deutsch.  kr.  fl.  ii,  S.  3,  124  (1848).  SCHIMP. 
Synops.  2  ed.  34  (1876).  HUSN.  Muse.  gall.  6,  t.  2  (1884). 

Weissia  squarrosa  C.  MUELL.  Synops.  i,  663  (1849).  LINDB.  De  Tort.  230  (1864). 
MILDE  Bry.  siles.  44  (1869).  JURATZ.  Laubm.  oesterr.-ung.  8  (1882). 

Gymnostomum  sqnarrosum  WILS.  Bry.  brit.  43,  t.  38  (1855).     SCHIMP.  Synops.  34  (1860). 

BERK.  Handh.  br.  m.  295  (1863).     HUSN.  Mouss.  nord.-ouest.  39  (1873).     HOBK.  Syn. 

br.  m.  33  (1873). 
Mollia  squarrosa  LINDB.  Muse,  scand.  22  (1879). 

Autoicous  ;  in  small  lax  deep  green  tufts.  Stem  ^  in.  high,  becoming 
decumbent  after  fruiting,  and  throwing  out  innovations  below  the 
perichaetium.  Leaves  distant,  squarrose,  dirty  green,  lanceolate, 
mucronate,  margins  erect  not  involute,  upper  comant,  lineal-lane,  twice 
the  length.  Capsule  small,  elliptic,  often  oblique,  brownish,  on  a  short 
yellowish  seta,  lid  conico-rostellate. 
HAB. — Clay  fields  and  banks  ;  not  common.  Fr.  10 — 3. 

Over,  Cheshire  (Wilson  1830)  !  !  Hurstpierpoint  (Mitten  1846)!  Hale  barns  and  Ashley, 
Cheshire  (Hunt  1868)  !  !  Bowdon,  Cotterall  wood,  Helsby  and  Mobberley  (Hunt 
1870)  !  Handforth,  Cheshire  (P.  G.  Cunliffe).  Buckingham  (Holmes).  Brant  Fell, 
Westmoreland  (West  1879)  !  !  Stirrup  wood  (Scholefield  1868).  Penan,  Braemar 
(Sim  1872). 

Very  close  to  M.  microstoma,  but  best  distinguished  by  the  decumbent 
stem  and  squarrose  leaves  with  plane  margins. 

7.  MOLLIA  TORTILIS  (Schwaegr.)  Braith. 

Autoicous  ;  densely  tufted,  fastigiate.  Leaves  crowded,  oblong- 
lancelate,  mucronate,  with  incurved  margin.  Caps,  oval,  equal,  lid 
obliquely  rostrate.  (T.  XXXIV,  D.) 

Svx.—Gymostomum  tortile  SCHWAEGR.  in  SCHRAD.  Neu.  Bot.  journ.  iv,  17,  t.  i  (1810),  Suppl. 
I,  P.  I,  29,  t.  10  (1811).  SCHKUHR  Deutsch.  kr.  gew.  P.  II,  29,  t.  ii,  c.  (1810).  BRID. 
Mant.  17  (1819),  Bry.  univ.  i,  74  (1826).  FUNCK  Moost.  7,  t.  4  (1821).  NEES 
HORNSCH.  Bry.  germ,  i,  182,  t.  n,  f.  28  (1823).  HUEBEN.  Muse.  germ.  48  (1833).  DE 
NOT.  Syllab.  291  (1838).  WILS.  Bry.  brit.  45,  t.  38  (1855).  SCHIMP.  Synops.  35  (1860). 
BERK.  Handb.  br.  m.  296  (1863).  HUSN.  Mouss.  nord.-ouest.  40  (1873).  HOBK  Syn 
br.  m.  33  (1873). 

Gymnostomum  condensatum  VOIT  in  STURM  Deutsch.  fl.  P.  xi  (1810),  Muse,  herbip.  14 
(1812).  ROEHL.  Deutch.  fl.  iii,  37  (1813). 


TORTULACEJE.]  236  [Mollia. 

Hymenostomnm  tortile  BR.  SCHIMP.  Bry.  eur.  fasc.  33—36,  p.  6,  t.  3—4  (1846).     DE  NOT. 

Epil.  bri.  ital.  606  (1869).     SCHIMP.  Synops.  2  ed.  35  (1876).     HUSNOT  Muse.  gall.  6, 

t.  2  (1884). 
Weissia  tortilis  C.  MUELL.  Synops.  i,  661  (1849).     MILDE  Bry.  siles.  44  (1869).     JURATZ. 

Laubm.  oesterr.-ung.  10  (1882). 
Weissia  condensa  LINDB.  de  Tort.  230  in  obs.  (1864). 

Autoicous  ;  in  more  robust  densely  crowded  tufts,  dichotomous, 
fastigiate,  dingy  green  above,  rufescent  below.  Leaves  crowded, 
appressed  and  twisting  when  dry,  erecto-patent  when  moist,  lower 
minute  ovate,  upper  broadly  lane,  obtusely  pointed,  mucronate  with 
the  stout  excurrent  nerve  which  is  reddish  in  old  leaves  ;  margin 
incurved,  subundulate,  cells  quadrate,  diaphanous  at  base,  opake  above. 
Perich.  bracts  longer  lane. -subulate ;  caps,  on  a  yellow  seta,  pachyder- 
mous,  ovate  or  oblong,  yellow-brown  with  a  red  mouth,  annulus  simple, 
lid  conico-subulate,  oblique,  epiphragm  perforated.  Male  infl.  near  the 
female,  gemmaceous. 
HAB. — Limestone  rocks,  banks  and  walls  ;  rare.  Fr.  3 — 4. 

St.  Michael's  mount  (Greenwood).  Lathkilldale,  Derby  (Wilson,  1831)  !!  Cliffs,  near 
Newhaven,  and  at  Crowhurst  (Borrer,  1837)  '  Plymouth  (Holmes,  1867)  !  !  Levens, 
Westmoreland  (Barnes,  1874) !  !  Otford  and  Sandgate,  Kent  (Holmes).  Bembridge, 
I.  of  Wight  (Davies,  1865)  !  Marazion  (Curnow). 

Readily  known  from  its  allies  by  the  broader  rather  obtuse  leaves,  erect 
and  incurved  when  dry,  and  fasciculate  at  the  top  of  each  shoot.  Mr. 
Holmes  has  noticed  that  it  has  a  curious  habit  of  detaching  itself  from  the 
substratum  it  grows  upon,  and  becoming  loose. 

8.  MOLLIA  VIRLDULA  (L.)  Lindb. 

Autoicous ;  laxly  caespitose.  Leaves  crisped,  linear-lanceolate, 
mucronate,  involute  at  margin.  Caps,  oval,  lid  rostrate,  teeth  small, 
irregular,  variable.  (T.  XXXIV,  E.) 

SYN. — Brynm  triclwides   exile,  erectis  capitulis  in  pediculis  brevissimis  DILL.     Cat.   Giss.  224 

(1719),  in  RAY  Synops.  3  ed.  97  (1724). 
Bryum  capillaceum  breve,  pallide  et  Icete-vircns,  capsulis  ovatis  DILL.  Hist.  muse.  380,  t. 

48,  f.  43  (1741)  et  Herbar. 
Bryum  viriduhim  L.  Sp.  plant,  ii,   1119  (1753),  Syst.  nat.  ii,  702.      HUDS.    Fl.    angl.  408 

(1762).     WEISS  Crypt.  Goett.    193  (1770).     WITH.    Bot.  arr.    br.  Veg.   ii,   676  (1776). 

LIGHTF.    Fl.    Scot,    ii,    731    (1777).      CURT.   Fl.   Lond.  fasc.  2,  132,  t.  70,  f.  i  (1778). 

RELHAN  Fl.  cant.  405  (1785).    HULL  Br.  Fl.  P.  2,  258  (1799). 
Weissia  viridula  HEDW.  Fund,  II,  90  (1781).      LEYS.  Fl.  Hal.  n.  1037  (^s)-      ROTH  Fl. 

germ,  i,  456  (1788).      BRID.  Muse.  rec.  II,  P.  I,  75  (1798),  Mant.  38  (1819),  Bry.  univ.  i, 

334(1826).     BR.  SCHIMP.  Bry.  eur.  fasc.  33 — 36,  p.  5,  t.  2 — 3  (1846).     RABENH.  Deutsch. 

kr.  fl.  ii,  S.  3,  125  (1848).     C.  MUELL.  Synops.  i,  651  (1849).     SCHIMP.  Synops.  50(1860), 

2  ed.  51.     MILDE  Bry.  siles.  45  (1869).     HUSN.  Mouss.  nord-ouest  42  (1873),  Muse.  gall. 

12,  t.  4   (1884).       JURATZ.  Laubm.  oesterr.-ung.    ii   (1882).      LESQ.   JAMES    Mosses 

N.  Amer.  55  (1884). 

Bryum  virens  DICKS.  PI.  crypt.  I,  4  (1785).     ABBOT  Fl.  bedf.  243  (1798). 
Mnium  -viridiilum  SVVARTZ  Meth.  muse.  365  (1787). 
Weissia  crispa  TIMM  Fl.  megap.  n.  736  (1788). 
Afzelia  crispa.  EHRH.  Crypt,  exs.  n.  222  (1790). 


TORTULACEjE.]  237  [MolUd. 

Weissia   controvcrsa   HEDW.    Muse,   frond,    iii,  13,   t.  5,  B.  (1792),   Sp.  muse.  67  (1801). 

SWARTZ  Muse.  suec.  26  (1799).     TURN.  Muse.  hib.  27   (1804).      SCHKUHR  Deutsch.  kr. 

gew.   P.  II,  52,  t.   25   (1810).     SCHWAEGR.  Suppl.  I,   P.  I,  77  (1811).     WAHLENB.  Fl. 

carp.  340  (1814),  Fl.  ups.  384  (1820).     ROEHL.   Deutsch.   fl.  iii,  48   (1813),   Ann.  Wett. 

ges.  iii,  98.     HOOK.  TAYL.  Muse.  brit.  47,   t.   15    (1818),     HOOK.  Fl.   scot.  P.   II,   131 

(1821),  Brit.  fl.  ii,  22  (1833).     FUNCK  Moost.  15,  t.   10  (1821).     GRAY  Nat.  arr.  br.  pi.  i, 

731  (1821).    ZENK.  DIETR.  Muse,  thuring.  II,  n.  45  (1822).    NEES  HORNSCH.  Bry.  germ. 

ii,  P.  2,  42,  t.  27,  f.  7  (1831).     HUEBEN.  Muse.  germ.  123  (1833).  Fl.  danica  t.  2304,  fig. 

2.      MACK.  Fl.  hib.  P.  2,  15  (1836).      DE  NOT.   Syllab.   234  (1838),  Epil.  bri.  ital.  599 

(1869).      WILS.  Bry.  brit.  46,  t.  15  (1855).     BERK.  Handb.  br.  m.   291   (1863).      HOBK. 

Syn.  br.  m.  33  (1873). 
Grimmia  controversa  SCHRAD.  Samml.      SIBTH.  Fl.  oxon.  277  (1794).     SMITH.  Fl.  brit.  iii, 

1187  (1804),  Eng.  Bot.  t.  1367.      WEB.   MOHR.  Bot.  Tasch.   133    (1807).      VOIT  Muse. 

herb.  32  (1812). 
Bryunt  controversum  HOFFM.  Deutsch.  fl.  ii,  32  (1795).     P.  BEAUV.  Mem.  Soc.  Linn.  Par. 

t.  5,  f.  5  (1822). 

Weissia  vlrens  BRID.  Muse.  rec.  II,  P.  I,  69  (1798).     ROEHL.  Moosg.  deutsch.  147  (1800). 
Weissia  microdonta  et  Dicranum  xantliodon  HEDW.  Sp.  muse.  t.  n  &  30  (1801). 
Weissia  mutabilis  BRID.  Sp.  muse.  I,  103  (1806).     MART.  Fl.  crypt,  erl.  112  (1817). 
Hymenostomum  subglobosum  NEES  HORNSCH.  Bry.  germ,  i,   103,  t.  12  (1823).      BRID.  Bry. 

univ.  ii,  79. 
Weissia  humilis ,  fallax  et  Bruchiana  NEES  HORNSCH.  Bry.  germ,  ii,  P.  II,  36,  t.  26 — 27 

(1831). 

Sitnophyllum  •uiridulum  LINDB.  Rev.  crit.  icon.  fl.  danicae  51  (1871). 
Mollia  viridula  LINDB.  muse,  scand.  21  (1879). 

Autoicous  ;  short,  laxly  caespitose  or  subpulvinate,  bright  green, 
nearly  simple.  Leaves  when  dry,  involuto-crispate,  when  moist  erecto- 
patent,  the  lower  lane,  upper  longer,  comant,  flexuoso-patulous,  from 
an  oblong  concave  base  with  plane  margins,  lineal  lane,  the  wings 
above  connivent,  involute  at  margin,  nerve  strong,  yellowish  excurrent 
in  a  short  mucro  ;  cells  at  base  rectang.  pellucid,  above  very  minute, 
opake.  Caps,  on  a  rather  short  pale  seta,  erect,  oval  or  oblong, 
occasionally  subcylindric,  rufescent  or  fuscous,  when  dry  slightly 
contracted  below  the  mouth  and  sulcate ;  annulus  narrow,  lid  obliquely 
subulate,  reddish  at  base,  peristome  very  variable,  teeth  lineal-lane. 
often  truncate  or  cleft  at  apex;  rufo-ferruginous,  roughish  at  back, 
with  2 — 5  joints. 

Male  infl.  terminal  on  the  innovations,  minute,  gemmaceous,  bracts 
ovate,  acuminate. 
HAB. — Banks,  roadsides  and  sandy  ground  ;  common.     Fr.  3 — 5. 

Var.  ,8.  amblyodon  Brid. 

Leaves  shorter,  oblong-lanceolate  ;  teeth  pale,  short  and  truncate  or 
cloven  at  apex,  lid  shorter. 

SYN. — Weissia  amblyodon  BRID.  Bry.  univ.  i,  805.     NEES  HORNSCH.  op.  c.  52,  t.  28. 

W.  gymnostomoides  &  microstoma  NEES  HORNSCH.  op.  c.  33,  t.  25. 

W.  viridula,  8.  amblyodon  Bry.  eur. 
HAB. — Peaty  soil. 

Forth    Dafarch   (Wilson    1856)!!      Milnthorpe,   Syergh   fell    and    Helsington    Barrows 
(Barnes  1870) !  !     Malham  cove  (Nowell)  !     Plymstock  (Holmes). 

Var.  y.  gymnostomoides  Brid. 


TORTULACE^.]  238  [Mollia. 

Teeth  rudimentary,  pale   and   truncate  ;    leaves  rather  shorter  ;    caps, 
small,  elliptic. 
SYN. — W.  gymnostomoidfs  BRID.  Bry  univ.  i,  342. 

W.  Rudolphiana  NEES  HORNSCH.  op.  c.  31,  t.  25. 

W.  viridula  c.  gymnostomoides  Bry.  eur. 
HAB.— Occasionally  with  the  ordinary  form. 

Var.  8.  densifolia  Wils. 

Densely  tufted,  stems  taller,  much  branched  ;  leaves  crowded,  narrower ; 
seta  often  short,  teeth  imperfect. 
SYN.— W.  densifolia  Wils.  MSS. 

W.  viridula  y.  densifolia  Bry.  eur.  Bry.  brit. 
HAB. — Kenmare   (Wilson    1829)  !      Rhayadr-y-Pare  Mawr    (Wilson  1845)  !  ! 

Malham  (West  1882)  !  ! 

Like  all  mosses  of  wide  distribution,  this  is  extremely  variable  in  size  as 
well  as  in  the  leaves  and  fruit,  its  most  constant  character  being  the  involute 
margin  of  the  leaves  and  small  pale  teeth,  the  latter  often  very  unequal  or 
with  projecting  lateral  processes  ;  occasionally  the  lid  is  longer  than  the 
capsule. 

It  is  curious  that  while  the  description  by  Linneus  of  Bvyum  viridulum 
certainly  refers  to  this  plant,  there  is  no  specimen  in  his  herbarium,  the 
mosses  there  so  named  being  Fissidetis  viridulus>  Pottia  truncatula  and 
Anisothecium  rubrum. 

9.   MOLLIA  EUTILANS   (Hedw.)  Lindb. 

Autoicous  ;  leaves  lanceolate,  mucronate,  with  plane  margins. 
Caps,  oblong,  substriate,  teeth  very  short,  truncate,  fugacious. 
(T.  XXXIV,  F.) 

SYN. — Gymnostomum  rutilans  HEDW.  Sp.  muse.  37,1.  3,  f.  8 — u  (1801).    BRID.  Sp.  muse.  I,  34 
(1806),  Mant.  16  (1819).     SCHWAEGR.  Suppl.  I,  P.  I,  29  (1811). 

Gymnostomum  microstomiim  SCHULTZ  Fl.  starg.  279  (1806).  WEB.  MOHR  Bot.  Tasch.  85 
(1807).  SCHKUHR  Deutsch.  kr.  gew.  ii,  P.  II,  23,  t.  10  (1810). 

Hymenostomum  rutilans  NEES  HORNSCH.  Bry.  germ,  i,  201,  t.  12,  f.  5  (1823).  BRID.  Bry. 
univ.  ii,  78  (1827).  HUEBEN.  Muse.  germ.  70  (1833). 

Weissia  apiculata  NEES  HORNSCH.  op.  c.  ii,  P.  II,  40,  t.  26  (1831).  RABENH.  Deutsch.  kr. 
fl.  H,  S.  3,  126  (1848). 

Weissia  mncrumdata  BRUCH,  SPRENG.  L.  Syst.  Veg.  iv,  158.     HUEBEN.  op.  c.  124. 

Weissia  mucronata  BR.  SCHIMP.  Bry.  eur.  fasc.  33 — 36,  p.  7,  t.  4  (1846).  WILS.  Bry.  brit. 
47,  t.  38  (1855).  SCHIMP.  Synops.  52  (1860),  2  ed.  51.  BERK.  Handb.  br.  m.  292  (1863). 
MILPE  Bry.  siles.  46  (1869).  HUSN.  Mouss.  nord-ouest.  42  (1873),  Muse.  gall.  13,  t.  4 
(1884).  HOBK.  Syn.  br.  m.  34  (1873).  JURATZ.  Laubm.  oesterr.-ung.  12  (1882). 

Weissia  viridula  S.  mucronata  C.  MUELL.  Synops.  i,  652  (1849). 
Mollia  rutilans  LINDB. 

Autoicous  ;  resembling  M.  viridula.  Leaves  broader  with  a  longer 
mucro,  the  upper  part  very  concave,  with  plane  margins.  Caps, 
oblongo-cylindraceous,  fuscescent  with  ferruginous  striae  and  a  red 
mouth  ;  lid  bright  red,  with  a  shorter  beak ;  teeth  broader,  irregular, 
cleft,  cribrose,  very  fugacious  ;  spores  twice  the  size. 
HAB. — Clay  soil  in  woods  and  shady  places  ;  not  common.  Fr.  3 — 4. 


TORTULACE.E.1  23Q  [Mollia. 

Hurstpierpoint  (Mitten,  1847)  '  Lindfield,  Palmer  and  Newtimber  (Davies)  !  !  Hattersley, 
Cheshire  (Whitehead  1868)!!  Forest  hill  (George).  VVhitstable  (Holmes}.  Ashley 
mill  (Holt  1884) ! !  Bowdon,  Helsby  and  Oakmere  (Hunt  1870) ! !  Whitbarrow 
(Barnes  1870)  !  Tregawn,  near  Withiel  (Tellam).  Menmuir  and  Caterthun  (Rev. 
M.  Anderson).  Alton  and  Maxtoke,  Warwick  (Bagnall).  Northumberland  coast  (Hardy). 
Rathmullen,  Donegal  (Capt.  Hutton).  Ben  Laoigh  (Ewing). 

Sect.  2.  EUCLADIUM  (Br.  Sch.)  Plants  larger,  densely  caespitose, 
repeatedly  dichotomous  ;  leaves  erecto-patent,  lanceolate,  rigid,  fragile,  with 
a  thick  nerve.  Capsule  erect,  ovate,  teeth  linear-lane,  obliquate,  flat 
punctulate,  bi-trifid,  or  wanting. 

10.  MOLLIA  TENTHS  (Schrad.)  Lindb. 

Dioicous  ;  very  short.  Leaves  linear-lane,  obtuse,  faintly  crenulate, 
nerve  vanishing  below  apex.  Caps,  erect,  oblong,  broadly  annulate, 
gymnostomous,  lid  conical.  (T.  XXXIV,  G.) 

SYN.— Gymnostomum  tenue  SCHRAD.  Samml.  crypt,  gew.  n.  31  (1796),  et  in  USTERI  Neu.  ann. 
xiv,  105  (1796).  ROTH  Fl.  germ,  in,  P.  I,  127  (1800).  HEDW.  Sp.  muse.  37.  t.  4 
(1801).  P.  BEAUV.  Prodr.  60  (1805).  BRID.  Sp  muse.  I,  33  (1806),  Mant.  13  (1819), 
Bry.  univ.  i,  64  (1826).  WEB.  MOHR  Tasch.  86  (1807).  SCHKUHR  Deutsch.  kr.  ge%v.  li, 
P.  II,  24,  t.  n  (1810).  SCHWAEGR.  Suppl.  I,  P.  I,  27  (i8n).  ROEHL.  Deutsch.  fl.  iii, 
39  (1813),  Ann.  Wett.  ges.  ii,  126.  HOOK.  TAYL.  Muse.  brit.  13,  t.  8  (1818).  GRAY 
Nat.  arr.  br.  pi.  i,  716  (1821).  HOOK.  Fl.  scot.  P.  II,  123  (1821),  Br.  fl.  ii,  10  (1833), 
NEES  HORNSCH.  Bry.  germ,  i,  151,  t.  10,  f.  14  (1823).  HUEBEN.  muse.  germ.  46  (1833). 
MACK.  Fl.  Hib.  P.  2,  p.  ii  (1836).  BR.  SCHIMP.  Bry.  eur.  fasc.  33—36,  p.  5,  t.  2  (1846). 
RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  121  (1848).  WILS.  Bry.  br.  41,  t.  7  ^855).  SCHIMP. 
Synops.  38  (1860).  BERK.  Handb.  br.  m.  294  (1863).  HUSN.  Mouss.  nord-ouest  40 
(1873).  HOBK.  Syn.  br.  m.  31  (1873).  JURATZ.  Laubm.  oesterr.-ung.  13  (1882).  LESQ. 
JAMES  Mosses  N.  Amer.  54  (1884). 
Weisia  tennis  C.  MCELL.  Synops.  i,  660  (1849). 

Trichostomnm  reflexum  ft-  gymnostomtim  LINDB.  de  Tort.  230  (1864).      MILDE  Bry.  siles. 

108  (1869). 

Gyroweissia  tennis  SCHIMP.  Syn.  2  ed.  38  (1876).     HUSNOT  muse.  gall.  7,  t.  2  (1884). 
Mollia   tennis  LINDB.  muse,  scand.  21  (1879). 

Dioicous ;  in  flat  deep  green  tufts,  very  short,  repeatedly  divided 
from  the  base.  Lower  leaves  linguiform,  upper  linear-lane,  obtuse, 
concave,  nerve  not  reaching  apex.  Cells  at  base  rectang.  at  margins 
paler,  quadrate.  Perich.  bracts  sheathing  in  lower  half,  then  patent, 
thin-nerved,  innermost  paler,  nerveless.  Caps,  oblongo-elliptic,  ferrugi- 
nous, finally  bay  color  and  glossy,  the  mouth  red  very  glossy ;  annulus 
very  broad.  Calyptra  reaching  £  down  caps,  lid  conico-rostellate. 

Males  very  dwarf,  bracts  ovato-lanc.  obtuse. 

HAB. — Rocks  and  stones  of  sandstone  or  limestone  ;  not  common.  Fr.  7 — 8. 
Near  Glasgow  (Don).  Auchindenny  and  Den  of  Dupplin  (Arnott).  Timperley,  Cheshire 
(Wilson) !  Belfast  (Drummond).  Henfield  (Mitten).  Thirsk  and  Studley  (Baker 
1854)  !  Oxford  and  Blenheim  park  (Bagwell  1862)  !  !  Ashley  mill  and  by  R.  Bollin 
(Hunt  1862)  ! !  Park  lane,  Manchester  (Holt  1882) !  !  Brandon  Kerry  (Taylor). 
Edgbaston  (Bagnall). 

ii.  MOLLIA  CALCAREA.  (Nets  Hornsch.)  Lindb. 

Dioicous;  compactly  tufted,  very  slender,  branched.  Leaves  linear 
lane,  entire,  the  nerve  vanishing ;  cells  minute  quadrate,  opake  above. 
Caps,  small  oblong,  scarcely  annulate,  lid  obliquely  subulate. 
(T.  XXXV,  A.) 


TORTULACE^E.j  240  [Mollid. 

SYN. — Gymnostomum  calcareum   NEES   HORNSCH.  Bry.  germ,  i,  153,  t.  10,  f.  15   (1823).     BRID. 
bry.  univ.  i,  65  (1826).     HUEBEN.   Muse.  germ.  48  (1833).     DE  NOT.  Syllab.  291  (1838), 
Epil.  bri.  ital.  603  (1869).     BRUCH  SCH.   Bry.  eur.   fasc.   33 — 36,  p.  6,   t.  3 — 4   (1846). 
RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,   121    (1848).     SCHIMP.   Synops.  39  (1860),   2  ed.   40 
HUSN.    Mouss.    nord-ouest  40    (1873),    Muse.    gall.    8,    t.  3  (1884).     JURATZ.  Laubm. 
oesterr.-ung.  14  (1882).     LESQ.  JAMES  Mosses  N.  Amer.  53  (1884). 
Weissia  calcarea  C.  MUELL.  Synops.  i,  659  (1849). 
Hymenostylium  calcareum  MITT.  Journ  Linn.  soc.  i,  Suppl.  33  (1859). 
Trichostomum  calcareum  LINDB.  de  Tort.  229  (1864).     MILDE  Bry.  siles.  107  (1869). 
Mollla  calcarea  LINDB. 

Dioicous ;  short,  very  tender  and  slender,  in  densely  compacted 
tufts,  bright  light  green  above,  ferruginous  below.  Lower  leaves  very 
small,  erecto-patent,  narrowly  lane,  upper  much  larger,  lineal-lane, 
rather  obtuse,  concave,  margin  very  minutely  crenulate,  nerve  stout, 
prominent  at  back,  vanishing  towards  apex,  cells  minute  quadrate. 
Perich  bracts  from  a  broader  subvaginant  laxly  areolate  base,  lanceolate- 
subulate,  patulous  ;  caps,  on  a  pale  straw-coloured  seta,  erect,  oblong, 
short-necked,  pale  brown  with  a  red  mouth,  when  empty,  subcylindric 
truncate,  slightly  contracted  below  the  mouth ;  annulus  very  narrow, 
persistent,  lid  conic  with  an  acute  oblique  beak.  Male  plant  more 
slender,  infl.  very  minute,  lateral,  bracts  ovato-acuminate. 
HAB.— Calcareous  rocks  ;  very  rare.  Fr.  6 — 7. 

Cheedale,  Derbyshire  (Holmes  1874) ! !     Monsal  Dale,   Ashwood  Dale  and   Ravensdale 
c.  ir.  (Holt  1883)  !  ! 

Var.  /?.  viridulum  (Brid.) 

Plants  very  short   and   slender,  darker  green,  branched;    lower  leaves 
minute,   remote,   upper   crowded,  oblongo-lanc.   shorter,  recurved  from  the 
middle,  subacute  or  muticous  ;  caps,  minute,  ovate. 
SYN. — Gymnostomum  viridulum  BRID.  op.  c.  66. 

G.  calcareum  Var.  y.  viridulum  Bry.  eur.  1.  c.  t.  3. 

G.  calcareum  Var.  S.  brevifolium  SCHIMP.  Synops.  40. 
HAB.— Damp  rocks.     Blackball,  Banchory  (J.  Sim  1871)  !  ! 

This  moss  is  most  striking  by  its  lovely  light  green  mats,  and  it  is 
extraordinary  that  it  should  so  long  have  escaped  notice.  Mr.  Holt  has  had 
the  good  fortune  to  find  it  in  fruit,  which  is  only  produced  sparingly  and  in 
crevices  away  from  the  light.  The  plant  is  very  variable  in  the  fruit,  the 
capsule  being  sometimes  nearly  globose,  and  in  other  cases  subcylindric  ;  the 
density  of  the  stems  is  also  in  some  cases  so  great  as  to  attain  an  almost 
corky  consistence. 

12.  MOLLIA  JERTJGINOSA  (Sm.)  Lindb. 

Dioicous;  densely  tufted,  dichotomously  branched.  Leaves  lanceo- 
late-linear, rather  obtuse,  crenulate  with  papillae  at  base,  nerve 
vanishing.  Caps,  oval,  riot  annulate,  lid  rostrate.  (T.  XXXV,  B.) 

SYN. — Gymnostomum  ceruginosum  SMITH  Fl.  brit.  iii,  1163  (1804),  Eng.  Bot.  t.  2200.  BRID.  Sp. 
muse.  I,  36  (1806),  Mant.  18  (1819),  Bry.  univ.  i,  80(1826).  SCHKUHR  Deutsch.  kr. 
gew.  ii,  P.  II,  25,  t.  ii  (1810). 


TORTULACE^;.]  241  [Mollia. 

Gymnostomum  rupestre  SCHLEICH.  Cat.  pi.  helv.  29  (1807).  SCHWAEGR.  Suppl.  I,  P.  I, 
31,  t.  10  (1811),  BRID.  Mant.  17,  Bry.  univ.  i,  77.  NEES  HORNSCH.  Bry.  germ,  i,  150, 
t.  10,  f.  16  (1823).  HOOK.  TAYL.  Muse.  br.  2  ed.  19,  Supp.  t.  2  (1827).  HUEBEN. 
Muse.  germ.  49  (1833).  MACK.  Fl.  hibern.  P.  2,  10  (1836).  HOOK.  Br.  fl.  ii,  8  (1833). 
DE  NOT.  Syllab.  291  (1838^,  Epil.  bri.  ital.  603  (1869).  BRUCH  SCH.  Bry.  eur.  fasc. 
33—36,  p.  7.  t.  5—6  (1846).  KABENH.  Deutsch  kr.  fl.  ii,  S.  3,  p.  122  (1848).  WILS. 
Bry.  brit.  41,  t.  32  (1855).  SCHIMP.  Synops.  41  (1860).  BERK.  Handb.  br.  m.  294 
(1863).  HOBK  Syn.  br.  m.  32  (1873).  JURATZ.  Laubm.  oesterr-ung.  15  (1882).  LESQ. 
JAMES  Mosses  N.  Amer.  53  (1884).  HUSNOT  Muse.  gall.  9,  t.  3  (1884). 

G.  articulatum  SCHKUHR  op.  c.  29,  t.  n.  BRID.  Mant.  18,  Bry.  univ.  i,  78.  NEES 
HORNSCH.  op.  c.  i,  156,  t.  10,  f.  17. 

G.  stelligerum  (non  SMITH,  nee  DICKS,  nee  BRID.).     NEES  HORNSCH.  op.  c.  168,  t.  ii,  f.  23. 

G.  rupestre  Var.  stelligerum  Bry.  eur.      Bry.  brit. 

G.  erythrostomum  BRID.  Bry.  univ.  i,  84. 

Weissia  rupestris  C.  MUELL.  Synops.  i,  657  (1849). 

Trichostomum  ceruginosum  LINDB.  de  Tort.  229  (1864). 

Trichostomum  rupestre  MILDE  Bry.  siles.  106  (1869). 

Mollia  ceruginosa  LINDB.  Muse.  Scand.  21  (1879). 

Dioicous  ;  densely  caespitose,  ^ — 3  in.  high,  slender,  deep  green 
above,  fuscescent  below,  tomentose,  dichotomously  branched,  fastigiate. 
Leaves  accrescent,  fasciculate,  patent  and  curved  upward,  when  dry 
erect  and  incurved,  lower  narrowly  lane,  upper  narrowly  lineal-lane, 
muticous,  nerve  thick  yellowish,  vanishing  in  the  apex,  margin  plane, 
very  minutely  geminato-papillose ;  cells  rectang.  and  pellucid  at  base, 
quadrate  and  minute  above.  Perich.  bracts  sheathing,  laxly  hexagono- 
reticulate  at  base  ;  caps,  leptodermous,  on  a  shortish  pale  red  seta,  oval, 
short  necked,  when  empty  pale  yellow,  glossy,  mouth  rufous  or  blackish 
red,  not  annulate,  lid  conic,  shortly  rostrate,  the  beak  pale.  Male  plant 
more  slender,  inner  bracts  ovate,  fuscous. 
HAB. — Wet  rocks,  especially  in  calcareous  subalpine  districts.  Not 

uncommon.     Fr.  8 — 9. 

Var.  fi.  ramosissima  Br.  Sch. 

Compactly  pulvinato-caespitose,  olivaceous-green.     Plants  very  slender, 
very    much    branched,   fragile  ;    leaves    short    and    narrow,    more    obtuse  ; 
capsules  small,  elliptic,  lid  conical. 
HAB.— Castleton,  Derbyshire  (7*.  Rogers  1881)  !  !     Millers  Dale  (Holt  1882)  !  ! 

This  moss  is  of  frequent  occurrence  among  the  limestone  hills  of  the 
north  of  England,  as  well  as  in  Scotland,  forming  dense  mats  of  a  deep  rich 
green  colour. 

Although  resembling  Barbula  curviyostns  very  much  in  habit,  the  areola- 
tion  of  the  upper  part  of  the  leaf  will  at  once  distinguish  them  ;  in  the 
present  plant  the  cells  are  minute  and  opake,  in  B.  curvirostris  larger,  empty 
and  clearly  denned.  The  Var.  stelligera  is  merely  a  form  with  repeated 
innovations. 

13.  MOLLIA  VERTICILLATA  (L.)  Lindb. 

Dioicous;  laxly  tufted,  dichotomously  branched.  Leaves  from  a 
broader  base  with  toothed  margin,  lanceolate,  narrow  and  subsubulate, 


TORTULACE^E.]  242  [Mollia. 

nerve  stout,  excurrent  in  a  thick  point.     Caps,  erect,  oval,  lid  obliquely 
subulate,  teeth  i5  lineal-lane,  papillose,  oblique.     (T.  XXXV,  C.) 

SYN. — Bryum  trichodes  brevifolinm,  angustis  cauliculis,  capitulis  erectis  parvis  et  minus  aduncis 

DILL,  in  RAY  Syn.  stirp.  br.  3  ed.  98  (1724). 

Muscus  trichodes  aquaticus  minimus,  capitulis  parvis  erectis  Richardson.     RAY  Syn.  ibid. 
Bryum  pilosum  verticillatum  DILL.     Hist.  muse.  374,  t.  47,  f.  35  (1741),  et  Herbar. 
Bryum  angustissimis  folds  crebrioribus  capitulis  erectis  brevibus,  pediculis  e  surculis  novis 

et  longis  enasccntibus  DILL,  in  RAY  Syn.  3  ed.  99. 
Muscus  palustris  cestivus,  capitulis  parvis  erectis,  foliis  dense  stipatus  Richardson.     RAY 

Syn.  ibid. 

Bryum  palustre  cestivum,  confervas  facie  DILL.  Hist.  375,  t.  47,  f.  36;  et  Herbar. 
Bryum  verticillatum  L.   Sp.  plant,  ii,  1120  (1753).     Syst.  nat.  ii,  702.      HUDS.  Fl.  angl. 

411,  excl.   var.  (3.  (1762).      WITH.   Bot.  arr.  br.  veg.  ii,  677   (1776).       VILLARS   PI. 

dauph.  iii,  877   (1786).     ROTH  Tent.  fl.  germ,  i,  473  (1788).     HULL  Br.  fl.  P.  II,  259 

(1799).     BRID.  Muse.  rec.  II,  P.  Ill,  40  (1803). 
Barbula  atlantica  BRID.  muse.  rec.   II,  P.  I,  202,  t.  6,  f.  13  (1798),  Mant.  93  (1819),  Bry. 

univ.  i,  559. 
Grimmia  vcrticillata  SM.  Fl.  brit.   iii,  1191  (1804),   Eng.  Bot.  t.  1258.     TURN.  muse.  hib. 

31  (1804). 

Grimmia  fragilis  WEB.  MOHR  Archiv.  I,  P.  I,  129,  t.  4,  f.  4  (1804).  SCHKUHR  Deutsch. 
kr.  gew.  II,  P.  II,  55,  t.  24  (1810). 

Weissia  verticillata  BRID.  Sp.  muse.  I,  121  (1806).  SCHWAEG.  Suppl.  I,  P.  I,  71,  t.  20 
(1811).  ROEHL.  Ann.  Wett.  ges.  iii,  no.  HOOK.  TAYL.  Muse.  br.  48,  t.  15  (1818). 
iuNCK  Moost.  14,  t.  13  (1821).  GRAY  Nat.  arr.  br.  pi.  i,  732  (1821).  NEES  HORNSCH. 
Bry.  germ.ii,  P.  II,  in,  t.  35,  f.  29  (1831).  HUEBEN.  Miisc.  germ.  147  (1833).  HOOK. 
Br.  fl.  ii,  23  (1833).  MACK.  Fl.  hib.  P.  II,  15  (1836).  DE  NOT.  Syllab.  229  (1838). 
Epil.  bri.  ital.  598  (1869).  C.  MUELL.  Synops.  i,  656  (1849).  WILS.  Bry.  brit.  49, 
t.  15  (1855).  BERK.  Handb.  br.  m.  293  (1863).  HUSN.  Mouss.  nord-ouest  43  (1873). 
HOBK.  Syn.  br.  m.  34  (1873). 

Tortula  atlantica  BRID.  Sp.  muse.  I,  255  (1806). 

Weissia  gypsacea  SCHLEICH.  Cat.  pi.  helv.  31  (1807). 

Coscinodon  verticillatus  BRID.  Bry.  univ.  i,  374  (1826). 

C.  clongatus  BRID.  op.  c.  376. 

Eucladium   verticillatum   BR.   SCHIMP.  Bry.  eur.  fasc.   33 — 36,    Mon.    p.   3,   t.    i  (1846). 

RABENH.  Deutsch.  kr.  fl.  ii,  8.3,  130  (1848).      SCHIMP.   Synops.   134  (1860),  2   ed.  45. 

LINDB.  de  Tort.  231  (1864).     MILDE  Bry.  siles.  109   (1869).    JURATZ.   Laubm.  oesterr.- 

ung.  16  (1882).      HUSNOT  Muse.  gall,  n,  t.  3  (1884). 

Hymenostylium  verticillatum  MITT.  Journ.  Linn.  Soc.  i,  Suppl.  32  (1859). 
Mollia  verticillata  LINDB.  Muse,  scand.  21  (1879). 

Dioicous;  densely  tufted,  repeatedly  dichotomous,  fastigiate,  i — 2  in. 
high,  pale  glaucous  green  above,  dirty  white  or  fuscescent  below,  usually 
encrusted  with  calcareous  deposit.  Leaves  lax  rigid  fragile,  nearly 
smooth,  erecto-patent,  lanceolate-subulate,  the  base  dilated,  with  the 
margin  toothed,  the  cells  lax  pellucid,  elongated,  above  irregularly 
quadrate ;  nerve  stout,  occupying  nearly  all  apex.  Caps,  on  a  shortish 
purple  seta,  chesnut  brown,  erect,  ovate  or  oval,  pachydermous,  annulus 
very  narrow,  lid  obliquely  subulate,  teeth  16,  deep  orange,  flat,  slightly 
papillose,  oblique,  lineal-lane,  remotely  articulate,  entire  or  2 — 3  fid. 

Male  plants  more  slender,  infl.  terminal,  outer  bracts  ovali-lanceo- 
late,  inner  acuminate,  the  nerve  vanishing. 

HAB. — Dripping  calcareous  rocks  or  occasionally  on  sandstone  ;  not  uncom- 
mon but  unfrequent  in  fruit.     Fr.  6  —7. 


TORTULACE.E.]  243  [Mollia. 

Very  variable  in  height  and  density,  but  easily  recognised  by  the 
dentate  basal  margin  of  the  leaf.  Lindberg  determined  the  Hyssopus  Salomonis 
HASSELQUIST  to  be  a  variety  of  this  with  recurved  leaves. 

14.  MOLLIA  CRISPULA    (Bruch)  Lindb. 

Dioicous ;  densely  casspitose.  Leaves  linear-lanceolate,  with  the 
apex  incurved  or  cucullate,  mucronate  with  the  excurrent  nerve,  the 
margin  incurved.  Caps,  erect  ovate,  lid  with  a  long  beak,  teeth  in 
pairs,  unequal,  very  slender.  (T.  XXXV,  D.) 

SYN. — Trichostomum  crispidum  BRUCH  in  Flora  xii,  P.  II,  395,  t.  i,  f.  4  (1829).  DE  NOT. 
Syllab.  191  (1838),  Epil.  bri.  ital.  503  (1869).  BR.  SCH.  Bry.  eur.  fasc.  18—20,  Mon.  8, 
t.  5  (1843).  RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  114  (1848).  C.  MUELL.  Synops.  i,  571 
(1849).  WILS.  Bry.  brit.  in,  t.  41  (1855).  SCHIMP.  Synops.  151  (1860),  2  ed.  171. 
BERK.  Handb.  br.  m.  261  (1863).  MILDE  Bry.  siles.  104  (1869).  HUSN.  Mouss.  nord- 
ouest  74  (1873),  Muse.  gall.  88,  t.  25  (1885).  HOBK.  Syn.  br.  m.  61  (1873).  JURATZ. 
Laubm.  oesterr.-ung.  103  (1882).  LESQ.  JAMES  Mosses  N.  Amer.  109  (1884). 

Didymodon  crispulus  WILS.  HOOK.  Br.  fl.  ii,  30  C1*^),  Eng.  Bot.  Suppl.  t.  2734  (1834). 
MACK.  Fl.  hibern.  P.  2,  18  (1836). 

Plaubelia  tortuosa  (non  BRID.)  BRUCH  MSS. 
Mollia  crispula  LINDB.  Muse,  scand.  21  (1879). 

Dioicous;  densely  caespitose,  fastigiate,  bright  green.  Comal 
leaves  patulous,  when  dry  with  involute  wings,  incurved  cirrhate,  lineal, 
margin  erect,  subundulate,  cucullato-incurved  at  apex,  concave,  very 
minutely  papillose,  upper  cells  small,  indistinct,  basal  narrowly 
rectangular,  nerve  terete  shortly  excurrent  in  a  mucro.  Perich.  bracts 
2 — 3  semivaginant,  with  an  erect  lane,  acute  apex ;  seta  red  below, 
yellowish  above,  caps,  erect,  ovate  or  elliptic,  irregularly  sulcate  when 
dry  and  empty,  lid  long-beaked,  red  at  margin,  teeth  in  two  unequal 
legs,  more  or  less  perfect,  finely  papillose. 

Male  plants  like  the  female  or  nearly  simple,  bracts  ovate 
acuminate. 

HAB. — Rocks,  walls  and  banks  in  calcareous  districts,  particularly  near  the 
sea  ;  not  common.     Fr.  5 — 6. 

Ormeshead  and  Tros-y-Marian,  Anglesey  (Wilson  1829)  !  Frequent  in  Sussex  (Mitten). 
St.  Vincent's  rocks  and  Leigh  woods  (Thwaites  1844)  !  Cliff  at  Scalby  mill,  Yorks. 
(Spruce  1843)  !  Common  about  Plymouth  (Holmes  1868)  !  !  Torquay  (Dickie). 
Arthur's  seat  (Hunt  1864)  !  Shere,  Surrey  (Dr.  Capron  1869)  !  Buckfastleigh  and 
Swanage  (Holmes)  '  !  Folkestone,  Kent  (Holmes)  \  \  Muckross,  Dunkerron  and  Ben- 
bulben,  Ireland  (Moore)  !  !  Rushen  Abbey,  I.  of  Man  (Holt  1884)  !  !  Great  Doward 
hill,  Monmouth  (Boswell  1875)  !  !  Falmouth  and  St.  Ouens.  Jersey  (Holmes.)  Monsal 
Dale  (Holt  1882)  !  ! 

Var.  ft.  viridula  (Bruch). 

Plants  smaller,  bright  yellow-green  ;  leaves  longer,  lanceolate,  gradually 
narrowed  upward,  acuminate  ;  fruit  smaller. 

SYN. — Trichostomum  viridulum  BRUCH  in  Flora  xii,  P.  II,  401,  t.  2,  f.  5.     HUEBEN.  Muse. 

germ.  303. 

T.  trifarium  HARTM.  Skand.  fl.  7  ed.  381. 

T.planum  LINDB.  in  Oefv.  vet.  ak.  foer.  xvi,  210.     HARTM.  op.  c.  8  ed.  396. 
T.  crispidum  Var.  angitstifolium  et  longi folium  SCHIMP.  Synops. 


TORTULACE^E.]  244  [Mollta. 

HAB.— Cliffs  at    Babbicombe,   Devon    (Davies    1866) !  !     Vale    of   Llanthony 

(Boswell  1871)!  ! 

Var.  y.  elata  5 'chimp. 

Tall,  in  large  tufts,  deep  green  above,  fuscescent  below,  2  in.  high  ;  leaves 
longer,  more  solid,  muticous. 

SYN. — Trichostomum  crispulum  Var.  €.  datum  Schimp.  Synops.  2  ed.  172. 
HAB.— Muckross  and  Cromaglown  (Hunt  1864)  !  !     Cheddar    Cliffs   (Boswell 

1873)!!      Ingleton,    Yorks    (West    1882)!!      Barmouth    (Holt    1882)!! 

Rathlin  Is.,  Ireland  (Stewart  1882) ! ! 

Var.  8.  nigro-viridis  Bmithw. 

Plants  tall,  very  slender,  in  very  dense  cushioned  tufts,  deep  green  above, 
black  below ;    stems  repeatedly  dichotomous ;    leaves   small,  shorter,  more 
patent,  with  smaller  areolation,   the  margins  incurved    above,  upper  cells 
papillose  at  back. 
HAB. — Near  the  summit  of  Ingleboro  (Nowell  1857) ! ! 

This  moss  is  most  variable  and  presents  forms  which  offer  the  greatest 
difficulty  in  assigning  them  a  place  under  this  species  or  M .  bracliydontia  ; 
the  typical  form  is  definite  enough,  for  the  nerve  apex  being  curved  up  and 
then  excurrent  from  the  lamina  as  a  short  mucro,  gives  the  leafpoint  a 
mimic  resemblance  to  the  bow  of  a  boat,  but  in  the  vai.  viridulum  this  is  so 
tapered  off  as  frequently  to  become  indefinite,  and  we  have  then  only  to 
rely  on  the  general  obtuseness  and  incurved  edges  of  the  leaf-apex.  Lindberg 
is  of  opinion  that  the  var.  ft.  is  Didymodon  trifarius  SWARTZ. 

15.  MOLLIA  LITORALIS  (Mitt.)  Braithw. 

Dioicous;  densely  caespitose.  Leaves  oblong-ligulate,  obtuse, 
mucronate  with  the  excurrent  nerve.  Caps,  oblong  ;  lid  conico,  rostrate. 
(T.  XXXV,  E.) 

SYN.—  Trichostomum  litorale  MITT,  in  SEEM.  Journ.  Bot.  1868,  p.  99,  t.  77,  fig.  7 — 9, 
HOBK.  Syn.  br.  m.  61  (1873).  HUSNOT  Mouss.  nord-ouest  74  (1873),  Muse.  gall.  88. 
t.  25  (1885).  SCHIMP.  Synops.  2  ed.  180  (1876). 

Dioicous;  densely  csespitose,  dull  yellow  green  above,  brown  at 
base.  Stems  £ — 1£  in.  high,  simple  or  innovating,  interrupted  and 
comose.  Leaves  short  erecto-patent,  slightly  recurved  in  the  upper 
half,  when  dry  incumbent  and  arcuato-incurved,  oblongo-ligulate, 
obtuse,  channelled  ;  nerve  yellowish,  stout,  excurrent  in  a  short  mucro  ; 
cells  at  base  oblongo-rectang.  pellucid,  above  rounded  and  obscure, 
minutely  papillose.  Capsule  on  a  short  pale  yellow  seta,  oblong,  tapering 
at  base,  fuscescent,  with  a  red  mouth,  lid  yellow,  conico-rostellate ; 
peristome  pale,  the  teeth  rather  short,  with  two  slender  nearly  equal  legs. 
HAB. — Sea-coast  in  the  S.  and  West  of  England.  Fr.  3 — 4. 

Sandy  ground  below  the  cliffs  east  of  Hastings  (Mitten).  Whits?nd  bay  (Brent). 
Aldrington  beach,  Sussex  (Davies  1864)  !  !  Staddon  heights,  Plymouth,  Devonport 
and  Newquay  (Holmes  1868)  !  !  Badger's  cross,  Penzance  c.  fr.  (Curnow  1867)  !  ! 
St.  Minver,  Cornwall  (Tellam  1871)  !  !  Penmon,  Anglesey  (Boswell  1874)  !  !  Tigh- 
na-bruaich  on  the  Clyde  (Dr.  Stirton  1864,  named  by  Wilson  T.  mntabilc  Var. 
brevifolium)  !  Between  Loch  Ness  and  Loch  Oich,  a  very  tall  form  (Hunt  1866)  !  ! 
Rannoch  (Dr.  B.  White  1867)  !  Douglas,  Gobey  valley  and  sandy  cliffs  at  Peel,  I.  of 
Man  (Holt  1884)  !  !  Carlingford  Mtn.,  Ireland  (Rev.  C.  Wadddl  1883)  !  !  Barmouth 


ToRTULACE.fi.]  245  [Mollia. 

Var.  /?.  angustifolia  Lindb.  in  lift. 

Stem  more  slender,  with  laxer,  more  patent,  narrower  linear  leaves. 
HAB. — Cromaglown,  Killarney  (Lindberg,  1873)  !  ! 

This  moss  is  almost  exactly  intermediate  between  M.  crispula  and  brachy- 
dontia,  and  some  of  the  varieties  of  these  species  so  nearly  connect  the  two,  that 
it  is  rather  difficult  to  define  the  present  one.  The  most  important  character 
is  derived  from  the  form  of  the  leaf,  this  is  short  and  almost  lineal  in  outline 
on  the  main  axis,  but  on  the  innovations  broader  towards  the  point  as  in 
some  Pottias,  the  apex  ends  somewhat  as  in  crispula,  but  the  nerve  does  not 
curve  up,  but  runs  straight  out  in  an  acute  triangular  mucro  as  in  flavo-virens, 
while  the  margins  do  not  roll  inward,  but  are  plane,  in  which,  as  well  as  in 
the  areolation  it  agrees  best  with  brachydontia.  The  stem  varies  greatly  in 
size  and  branching,  lateral  innovations  being  very  frequent,  the  leaves  of 
which  on  the  lower  part  are  very  small  and  distant,  suddenly  becoming 
accrescent  upward  into  a  coma. 

Prof.  Lindberg  also  sends  M.  litoralis  from  Dingle,  Howth,  and  O'Sulliva»'s 
cascade,  and  the  male  plant  from  Cromaglown ;  the  latter  is  in  lax  tufts,  i  inch 
high,  the  male  infl.  minute,  gemmiform,  in  the  axils  of  the  comal  leaves,  the 
bracts  4 — 5,  ovate  acuminate,  laxly  areolate,  nerved  to  apex. 


1 6.  MOLLIA  BRACHYDONTIA  (BnuV)  Lindb. 

Dioicous ;  caespitose.  Leaves  broadly  lanceolate,  gradually 
acuminate,  cuspidate  with  the  flat  straight  excurrent  nerve.  Caps, 
ovate,  lid  conic,  rostrate,  teeth  of  peristome  very  short  and  irregular. 
(T.  XXXVI,  A.) 

SYN. — Trickostomum  brachydontiuin  BRUCH  in  Flora  xii,  P.  II,  393,  t.  i,  f.  3  (1829).     LINDB.  de 

Tort.  228  (1864).     HOBK.  Syn.  br.  m.  60  (1873). 
Didymodon  brachydontius  WILS.  in  HOOK.  Br.  Fl.  ii,  30  (1833),  Eng.  Bot.  Suppl.  t.  2735 

(1834).     MACK.  Fl.  hib.  P,  II,  18  (1836). 
Trichostomum  mutabile  BRUCH  MSS.     DE  NOT.  Syllab.    192  (1838),  Epil.   bri.  ital.  504 

(1869).     BR.  SCH.  Bry.  eur.  fasc.  18—20,  Mon.  8,  t.  5  (1843).     RABENH.   Deutsch.   kr. 

fl.  ii,  S.  3,  114(1848).     C.  MUELL.  Synops.  i,  571   (1849).     WILS.  Bry.  brit.  112,  t.  41 

(1855).     SCHIMP.  Synops.    150    (1860),  2  ed.  170.     BERK.   Handb.  br.  m.    261   (1863). 

MILDE  Bry.  siles.   103  (1869).     HUSN.    Mouss.   nord-ouest  74  (1873),  Muse.   gall.  87, 

t.  25  (1885).     JURATZ.  Laubm.  oesterr.-ung.  103  (1882). 

Tortnla  brachydontia,  MITT.  Journ.  Linn.  soc.  Bot.  xii,  148  (1869). 
Mollia  brachydontia  LINDB.  Muse,  scand.  21  (1879). 

Dioicous  ;  densely  caespitose,  ^ — 2  in.  high,  dull  yellow-green  above, 
fuscous  below.  Leaves  firm  and  twisting  when  dry,  erecto-patent  when 
moist,  lower  minute,  upper  comant,  elongato-lanceolate,  acuminate,  the 
nerve  flattish,  stout,  yellowish,  excurrent  in  a  flat  straight  acute  point ; 
margin  subundulate,  erect,  cells  at  base  small,  rectangular,  pellucid, 
above  very  minute,  hexagonal,  opake.  Perich.  bracts  narrower,  linear, 
longly  acuminate  ;  caps,  on  a  longish  slender  purple  seta,  erect,  ovate, 


TORTULACE.E.]  246  [Mollia. 

elliptic  or  subcylindric,  fuscous,  lid  conico-rostrate,  teeth  of  per.  pale 
yellow,  short,  unequal  and  variable,  papillose.  Male  plant  smaller, 
bracts  ovato-acuminate,  laxly  areolate  at  base. 

HAB. — Calcareous  rocks,  especially  on  the  coast.     Fr.  4 — 6. 

Ormeshead  and  Carrig  Onnen  and  Tros-y-Marian,  Anglesey  (Wilson  1828)  !  !  Gap  of 
Dunloe  (Wilson  1829)  !  !  Near  Bantry  (Miss  Hutchins  1809)  !  Dunkerron,  Kerry  and 
Kenmare  (Taylor  1833).  Aber  (Hunt  1865)  !  !  Milnthorpe  (Barnes  1868)  !  !  Bangor 
(Wilson  1856)  !  Leigh  woods,  Bristol  (Wilson  i86oj  ! !  Cliffs  at  Newhaven  (Hemmings 
1855)  !  Gordale  (Nowell  1854)  !  !  Minehead,  Somerset  (Miss  Gifford  1868)  !  ! 
Elburton  and  Knighton,  Plymouth  (Holmes  1871)  !  !  Loch  Ness  (Hunt)  !  Dolgelly 
(Tetlow  1880)  !  !  Ingleton  (West  1882)  !  !  Spanish  head  and  Douglas,  I.  oi  Man 
(Holt  1884)  !  !  Dovedale  (Wilson  1867)  !  Penzance  (Curnow)  \  \ 

Var.  ft.  cophocarpa  (Schimp.) 

Plants  more  slender,  tall,  bright  green  above,  rufescent  below  ;  leaves 
lanceolate  below,  longer,  acutely  acuminate ;  caps,  on  a  shorter  pedicel, 
oval,  brown,  peristome  very  rudimentary. 

SYN. — T.  mutabile  Var.  S.  cophocarpum  SCHIMP.  Synops.  2  ed.  171. 

HAB.— Chee-dale,  Derby,  c.  fr.  (WMtehead  1880) !  !  Miller's  dale  (West 
1881)  !  !  Clydach  Valley,  near  Abergavenny  (Mitten  1883) !  ! 

This  is  indeed  a  variable  moss,  as  one  of  its  names  implies,  and  no 
doubt  the  last  species  has  often  been  confounded  with  it.  The  excurrent 
nerve  varies  in  the  length  of  the  point,  but  there  is  always  a  certain  tapering 
upward  of  the  lamina,  this,  with  the  minute  opake  areolation  and  plane 
margins,  best  distinguish  it.  Mr.  Mitten  distributed  specimens  of  the 
Var.  (3.  as  Barbula paludosa  SCHWAEGR.  (i8n)  =  Tortula  crocea  BRID.  (1806),  but 
it  does  not  belong  to  that  species,  for  although  having  much  external  resem- 
blance to  it,  it  may  be  noted  that  Barbula  crocea  has  shorter,  straighter  and 
more  erect  leaves,  suddenly  pointed,  the  nerve  only  forming  a  short  apiculus, 
the  areolation  of  the  upper  part  is  also  smaller  and  more  indistinct,  and  the 
margin  towards  the  apex  has  several  irregular  teeth. 


17.  MOLLIA  LUTESCENS  Lindb. 

Dioicous ;  resembling  M.  brachydontia,  but  with  longer  ligulate 
leaves,  aristate  with  the  terete  excurrent  nerve,  the  cells  all  pellucid 
and  pulvinate.  (T.  XXXVIII,  C.) 

SYN.— Mollia  lutescens  LINDB.     MSS. 

Dioicous ;  in  small  lax  incoherent  tufts,  yellowish  green  above, 
rufescent  below.  Leaves  accrescent  upward,  erecto-patent  when  moist, 
crispate  when  dry,  very  long,  narrow  and  ligulate,  scarcely  concave, 
suddenly  pointed  and  aristate  with  the  excurrent  nerve  ;  basal  cells 
narrowly  rectangular,  pellucid,  upper  all  pellucid,  very  distinct  and 
with  chlorophyl,  not  papillose,  but  pulvinate  in  outline. 


TORTULACE^.]  247  [Mollia. 

HAB. — Fissures  of  limestone  rocks  at  Glena,  Killarney,  ?  ster.  (Lind- 
berg,]u\y,  1873)!  ! 

Although  so  close  to  M.  brachydontia,  this  appears  to  be  a  good  species, 
being  a  coarser  fragile  plant  with  the  cells  in  the  upper  part  of  leaf  much 
better  denned. 

Sect.  3.  TORTELLA.  C.  Muell.  Plants  taller,  robust,  dense-leaved 
throughout.  Leaves  long,  carinate,  cirrhato — crispate  when  dry,  the 
sheathing  base  thin,  white,  and  hyaline.  Peristome  sometimes  twisted. 


1 8.   MOLLIA  TENTTIROSTRIS   (Hook.  Tayl.)  Lindb. 

Dioicous  ;  in  lax  soft  bright  green  tufts.  Leaves  long,  cirrhate, 
flexuoso-patulous,  linear-lanceolate,  subundulate,  nerve  ending  in  the 
apex.  Caps,  narrow,  cylindric,  lid  conico-rostrate,  teeth  linear-lanceo- 
late. (T.  XXXVI,  B.) 

Svv.—Weissia   tenuirostris  HOOK.  TAYL.  Muse.  brit.  2  ed.  83,  suppl.  t.  3   (1827).     HOOK.  Br. 

fl.  ii,  21  (1833).     MACK.  Fl.  hibern.  P.  II,  14  (1836). 
Weissia  cylindrica  BRUCH  MSS.     BRID.  Bry.univ.  i,  Suppl.  806  (1827).     NEES  HORNSCH. 

Bry.  germ,  ii,  P.  II,  58,  t.  29,  f.  13  (1831).     DE  NOT.  Syllab.  232  (1838). 
Weissia  cirrata  y8.  cylindrica  HUEBEN,  Muse.  germ.  127  (1833). 

Didymodon  tenuirostris  WILS.  in  HOOK.  Bot.  J.  iii,  378  (1841).  HUSN.  Muse.  gall.  80,  t. 
22  (1885). 

Didymodon  cylindricus  (non  WAHLENB.)  BR.  SCH.  Bry.  eur.  fasc.  29—30.  mon.  5,  t.  3 
(1846).  RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  102  (1848).  WILS  Bry.  brit.  108.  t.  33 
(1855).  SCHIMP.  Synops.  132  (1860),  2  ed.  164.  BERK.  Handb.  br.  m.  265  (1863).  DE 
NOT.  Epil.  bri.  ital.  563  (1869).  HOBK.  Syn.  br.  m.  59  (1873).  HUSN.  Mouss.  nord- 
ouest.  69  (1873).  LESQ.  JAMES  Mosses  N.  Amer.  105  (1884). 

Trichostomum  cylindricum  (non  HEDW.).  C.  MUELL.  Synops.  i,  586  (1849).  MILDE  Bry. 
siles.  100  (1869).  JURATZ.  Laubm.  oesterr.-ung.  104  (1882). 

Tortula  cylindrica  MITT.  Journ.  Linn.  soc.  i,  suppl.  28  (1859). 

Trichostomum  tenuirostre  LINDB.  De  Tort.  225  (1864). 

Tortula  tenuirostris  MITT.  Journ.  Linn.  soc.  Bot.  xii,  148  (1869). 

Mollia  tenuirostris  LINDB.  Muse,  scand.  21  (1879). 

Dioicous ;  in  flat,  lax,  soft  tufts,  yellow  green  or  sometimes  dark 
lurid  green  above,  rufescent  or  fuscous  at  base.  Stems  £ — 2  in.  high, 
flexuose,  bifid  or  trifid  by  innovation.  Leaves  rather  lax  below, 
becoming  more  crowded,  longer  and  comant  upward,  very  long  from  an 
erect  base,  flexuoso-patulous,  when  dry  strongly  twisting  and  cirrhate, 
linear-lanceolate,  channelled,  undulate,  wings  fragile,  strongly  verru- 
culose,  margin  minutely  crenulate,  occasionally  with  a  few  remote  teeth 
at  apex,  cells  at  base  lax  pellucid,  gradually  and  equally  becoming 
oblong  and  oval,  above  roundish-quadrate,  opake ;  nerve  terete, 
narrow,  prolonged  into  the  apex.  Perich.  bracts  with  a  longer 
sheathing  base ;  caps,  on  a  slender  reddish-yellow  seta,  erect,  lepto- 
dermous,  narrowly  cylindric,  pale  brown  ;  lid  pale  red,  conico-rostrate, 


TORTULACE.E.]  248  [Mollia. 

half-length  of  caps,  acute,  annulus  of  two  rows  of  narrow  cells ;  teeth 
pale  red,  narrowly  lineal-lanceolate,  cleft,  or  perforated,  the  legs  closely 
cohering.  Male  plant  more  slender,  repeatedly  branched,  bracts  from 
an  ovate  concave  base,  narrowly  lineal-lanceolate. 

HAB. — Damp  shady  rocks  and  by  waterfalls,  sometimes  on  trunks  of  trees ; 
not  uncommon,  but  rare  in  fruit.     Fr.  10. 

Dolgelly,  Dennant  and  Conway  c.  fr.  (Wilson  1830)  ! !  Lythebeck,  Eskdale  (Spruce 
1842)  !  Crambeck  and  Howley  Wood,  Castle  Howard  (Spruce  1844)  !  On  trees, 
Stapleton,  Bristol  (Thwaites  1843)  !  Povverscourt  and  Killarney  (Taylor).  Brandon 
Mountain  (Moore).  Glen  Roy  and  foot  of  Ben  Voirlich  c.  fr.  Tore  cascade,  Eagle's 
nest  and  Cromaglown  (Hunt  1867) ! !  Dunoon  and  Trossachs  (Hunt  1866) !  Cwm 
Bychan  and  Tyn-y-Groes  (Holt  1882)  !!  Pigeon  rock  Mtn.,  Mourne  Mtns.,  Co.  Down 
(Rev.  H.  Lett  and  C.  Waddell  1885)  !  !  Barmouth  (Whitehead)  ! ! 

Var.  ft.  Daldinii  (De  Not.) 

In  wider  tufts  of  a  yellow-green  colour ;  leaves  shorter,  broader,  gra- 
dually narrowed  towards  apex,  or  suddenly  apiculate,  very  acute,  two 
marginal  series  of  cells  pachydermous,  yellow ;  capsule  small  oblong. 

SYN. — Didymodon   cylindricus  Var.  ft.  Daldinianus  DE   NOT.   Epil.  1.  c.      SCHIMP.    Synops. 
2  ed.  165. 

HAB. — In  more  Alpine  localities. 

Ben  Voirlich  (McKinlay  1862).  Ben  More  and  Ben  Lawers  (Hunt  1865)  !  !  Trossachs 
(Hunt  1866)  !  Borrowdale  (Wilson  1864).  Ben  Arthur  (Stir ton  1864).  Twll  Du, 
Caernarvon  (Holmes  1876) !  !  Moy  Laggan,  Perth  (Mrs.  Farquharson  1879) ! ! 
Tyn-y-Groes,  Wales  (Holt  1885)  !  ! 

Var.  y.  Holtii  BraitJiw. 

Plants  robust,  densely  matted  and  tomentose,  with  stout  straight  stems 
dark  green  above,  black  below  ;  leaves  more  dense,  the  upper  often  slightly 
secund,  erecto-patent,  firm,  apex  rather  obtuse,  the  nerve  lost  at  point,  cells 
smaller,  dense,  nearly  smooth. 

HAB. — Dripping  rocks  and  in  the  spray  of  waterfalls. 

Bamford  wood,  Lancashire  (Holt  1883)  !  !  Injebreck  and  Sulby  glen,  I.  of  Man  (Holt 
1883) ! !  Clogwyn-du-Arrddu  and  Tyn-y-groes,  Wales  (Holt  1883)  ! !  Cromaglown 
and  O'Sullivan's  cascade  (Stewart  and  Holt  1885) ! ! 

Much  resembling  M.  tortuosa,  but  more  slender,  and  readily  distinguished 
from  it  by  the  basal  areolation,  which  in  the  latter  is  sharply  defined  from  the 
chlorophyllose  in  a  direction  running  obliquely  upward  and  outward.  It 
varies  much  in  size,  and  when  exposed  to  dripping  water  becomes  dark 
green  and  often  much  elongated. 

Schimper's  Var.  robustus,  from  Troutbeck,  is  only  M.  tortuosa. 


19.   MOLLIA  HIBERNICA  (Mitt.)  Lindb. 

Dioicous ;  tall  and  branching.  Leaves  from  an  ovate  clasping 
base  which  is  dilated  upward,  lanceolate-subulate,  patent,  entire, 
nerved  to  apex,  basal  cells  elongate  rectangular,  abruptly  passing  to 
minute  rounded  chlorophyllose  ones.  (T.  XXXVI,  C.) 


TORTULACE^E.]  249  [Mollia. 

Svx.—Anatctangium  Hornschuchlaniim  (non  HOPPE  HSCH.)  WILS.  Bry.  brit.3i2  (1855). 

Tortilla  hlbernica  MITT,  in  SEEM.  J.  Bot.  1867,  p.  329.     BRAITHW.  in  Journ.  Bot.  1871, 

p.  294,  T.  120,  f.  5.     HOBK.  Syn.  br.  m.  72  (1873). 
Didymodon  controversus  Wits.  MSS. 
Barbula  cirrifolia  SCHIMP.  Synops.  2  ed.  219  (1876). 

Dioicous ;  in  lax  tufts,  yellow-green  above,  rufescent  below,  tall, 
2 — 4  in.  high,  branched,  not  radiculose.  Leaves  lax  below,  becoming 
longer  and  comose  above,  from  an  erect  base,  flexuoso-patulous  when 
moist,  cirrato-crispate  when  dry,  at  the  base  becoming  wider  upward, 
oval-oblong,  concave  and  semi-amplexicaul,  then  longly  lanceolate- 
subulate  and  concave,  the  margin  slightly  undulate  at  base,  erect  and 
entire  above,  very  minutely  verruculose  ;  nerve  yellowish,  continued  to 
the  apex,  smooth  at  back,  cells  of  the  dilated  base  pellucid,  rectangular, 
hyaline,  suddenly  joining  the  small  quadrate  chlorophyllose  ones  which 
form  the  rest  of  the  leaf.  Perich.  bracts  more  longly  sheathing, 
flexuose  and  curved  in  the  upper  part.  Calyptra  narrow,  deeply  cleft, 
convolute  below ;  caps,  equal,  cylindric.  Male  infl.  in  the  stellate 
coma,  bracts  oblong  and  concave  at  base,  shortly  subulate ;  antheridia 
very  numerous. 

HAS. — Wet  rocks   at   Cromaglown,    Killarney   (Taylor)  !  !      Brandon    Mtn., 
Kerry  (Meore  1862) !  ! 

This  fine  moss  is  very  close  to  M .  tenuirostris,  but  is  readily  distinguished 
by  the  dilated  base  of  the  leaf  and  very  different  areolation.  The  fruit  was 
unknown  until  Schimper  detected  one  or  two  old  capsules,  which  had  lost 
their  peristomes,  and  fig.  5  and  6  are  copied  from  his  drawings. 

20.  MOLLIA  FLAVOVIRENS   (Bruch)  Lmdb. 

Dioicous  ;  soft,  csespitose.  Leaves  from  a  sheathing  oblong  glossy 
white  base,  lineal,  undulate,  very  concave,  nerve  excurrent  in  a  short 
mucro.  Caps,  erect,  oblongo-cylindric,  lid  conic  rostrate,  teeth  long, 
filiform.  (T.  XXXVI,  D.) 

SYN. — Trichostomum  flavovirens  BRUCH  in  Flora,  xii,  P.  II,  404,  t.  2,  fig.  7  (1829).  DE  NOT. 
Syllab.  193  (1838),  Epil.  bri.  ital.  502  (1869).  BR.  SCH.  Bry.  eur.  fasc.  18—20,  p.  6,  t. 
2  (1843).  RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  113  (1848).  C.  MUELL.  Synops.  i,  585 
(1849).  SCHIMP.  Synops.  152  (1860),  2  ed.  174.  MITT,  in  SEEM.  J.  Bot.  1868,  p.  97, 
t.  77,  f.  i — 4.  MILDE  Bry.  siles.  105  (1869).  HOBK.  Syn.  br.  m.  61  (1873).  HUSN. 
Mouss.  nord-ouest  74  (1873),  Muse.  gall.  86,  t,  24  (1885).  JURATZ.  Laubm.  oesterr.- 
ung.  106  (1882).  LESQ.  JAMES  Mosses  N.  Amer.  109  (1884). 

Didymodon  tricolor  BALS.  DE  NOT.  in  Mem.  ace.  Torin.  xl,  333  (1838). 

Tortula  fla-vomrtnz  LINDB.  de  Tort  252  (1864). 

Mollia  flavo-virens  LINDB.  Muse,  scand.  21  (1879). 

Dioicous  ;  laxly  caespitose,  sparingly  branched,  in  soft  dull  yellow- 
green  tufts,  \ — i  inch  high,  fuscous  or  pale  at  base  and  tomentose. 
Lower  leaves  very  small,  remote,  suberect,  upper  longer,  crowded  in  a 


TORTULACE^.]  250  [Mollia. 

patulous  coma,  from  a  longly  sheathing  oblong  glossy  whitish  thin  base, 
lineal-lanceolate,  yellow-green  or  somewhat  glaucous,  when  dry  arcuato- 
incurved,  the  wings  more  or  less  undulated,  very  concave,  nerve  stout, 
terete,  excurrent  in  a  short  mucro  ;  cells  at  base  hyaline,  small  elongated 
rectangular,  slanting  upward  from  the  nerve  to  the  margin,  suddenly 
joined  by  the  oval  chlorophyllose  cells,  which  become  rounded  subquad- 
rate  toward  apex.  Perich.  bracts  similar,  but  a  little  more  elongated, 
caps,  erect  on  a  subflexuose  seta  which  is  yellowish  above,  purple  at 
base,  leptodermous,  oblong  and  oblongo-cylindraceous,  pale  yellow- 
brown  with  a  red  mouth,  lightly  sulcate  when  dry  ;  lid  conic-rostrate, 
not  annulate,  teeth  long  filiform,  equal,  purple,  on  a  narrow  basal  mem- 
brane, erect  or  slightly  twisted.  Male  plant  simple  or  divided,  bracts 
ovate,  acuminate. 

HAB. — Sandy  ground  near  the  coast ;  S.  of  England,  not  common  and  always 
sterile.     Fr.  5. 

Shoreham  beach  and  Seaford  (Borrer  1837)  '  Ditten  marsh  (Wilson  1859).  Howth, 
Portmarnock  sands,  Dublin  and  Arklow  (Moore  1859)  ! !  Malahide  and  Ross  Bay 
(Carrington  1861)  !  Below  Staddon  heights,  Plymouth  (Holmes  1867)  !  !  Below  Menai 
declivity  (Hunt  1868)  !  St.  Minver,  Cornwall  (Tellam  1871) !  Hayle  sands  and  Newlyn 
cliff  (Curnow  1872)  !  !  Dingle  bay  (Lindberg  1873)  ! !  Wembury  and  Dartmouth 
(Holmes  1883)  ! !  Mawgar  Forth,  Cornwall  (Holmes  1884)  !  !  Southport  (Burgess  and 
Holt  1885) ! !  Rabbit  warren,  St.  Anne's  on  the  sea  (Cash  1884) !  !  Largo  Links 
(Howie) ! ! 

Readily  known  by  its  soft  texture  and  interruptedly  comose  leaves,  with 
their  obliquely  ascending  basal  cells ;  in  habit  it  comes  nearest  M.  humilis 
(HEDW.),  and  the  leaf  also  resembles  that  of  M.  inclinata  so  closely  that  it  is 
sometimes  very  difficult  to  decide  between  barren  specimens. 


21.  MOLLIA  NITIDA  Lindb. 

Dioicous  ;  compactly  tufted.  Leaves  linear-lanceolate,  acute,  the 
apex  generally  broken  off,  circinato-incurved  when  dry,  paler  and 
shining  on  the  back,  mucronate  with  the  excurrent  nerve.  Caps,  cylin- 
dric,  teeth  small  and  imperfect.  (T.  XXXVII,  A.) 

SYN.—  Tortula  nitida  LINDB.  de  Tort.  252  (1864),  Hedwigia   iv,  40   (1865),  Journ.   Linn.  soc. 

Bot.  xi,  464  (1871).     BRAITHW.  Journ.  Bot.  1871,  p.  294.     HOBK.  Syn.  br.  m.  73  (1873). 
Barbula  Alcxandrina  LOR.  in  Abhand.  ak.  wiss.  Berl.  1867,  pp.  32—35,  t.  6—7. 
Trichostomum  diffractum  MITT,  in  SEEM.  Journ.  Bot.  1868,  p.  98,  t.  77,  f.  5—6. 
Trichostomum  Barbula  (non  SCHWAEG.)  LANGE  in  Bot.  Tids.  ii,  235  (1868). 
Barbula  nitida  GRAVET  in  Rev.  bryol.  1874,  p.  19.    JURATZ.  Laubm.  oesterr.-ung.  121 

(1882). 
Trichostomum  nitidum  SCHIMP.  Synops.  2  ed.  179  (1876).     PHILIB.  in  Rev.  bryol.  1878,  p. 

27.  et  1883,  p.  77.     HUSNOT  Muse.  gall.  87,  t.  24  (1885). 

Dioicous ;  in  small  dense  pulvinate  tufts,  olivaceous-green  or 
yellowish-green  above,  rufo-fuscous  or  blackish  at  base,  stems  robust, 
dichotomous,  dense-leaved,  tomentose  below.  Leaves  gradually 


TORTULACE.E.]  25!  \_MollicL. 

accrescent  upward,  very  fragile  and  breaking  off  in  the  upper  part,  from 
a  short  erect  base,  patent  when  moist,  arcuato-incurved  when  dry,  the 
wings  inflexo-complicate,  glossy  and  shining  on  the  back,  lineal-lanceo- 
late, at  apex  more  or  less  longly  acuminate,  or  suddenly  almost  apiculate, 
concave,  the  margin  plane  and  subundulate,  finely  crenulate  with 
projecting  cells,  base  subvaginant,  with  lax  elongated  hyaline  cells, 
which  are  small  and  run  upward  and  outward  to  the  margin,  the  other 
cells  very  minute,  rounded  quadrate,  green,  papillose  on  both  sides  ; 
nerve  stout,  pale  green,  finally  brownish,  prominent  on  the  back,  excurrent 
in  a  short  rrmcro.  Perich.  bracts  small,  lanceolate-subulate,  with  excur- 
rent nerve,  seta  purple  at  base,  passing  to  yellow  above,  caps,  oblongo- 
cylindric,  pale  brown  with  a  red  mouth,  faintly  sulcate  when  old, 
annulus  indistinct,  lid  ^  length  of  caps,  obliquely  rostrate,  pale  red, 
teeth  of  per.  very  short  and  irregular,  truncate,  yellow,  papillose.  Male 
infl.  minute,  gemmiform,  in  the  axils  of  the  upper  leaves  ;  bracts  3  or  4, 
broad,  oblong,  with  a  narrow  ligulate  upper  half,  nerve  vanishing. 

HAB. — Calcareous  rocks  and  walls. 

Carnelly  and  St.  Michael's  chapel,  Torquay  (Borrer).  St.  Vincent's  rocks  and  Durdham 
downs  (Thwaites  1843)  !  !  Greenaleigh,  Minehead  (Miss  Gifford  1868)  !  !  Penzance 
(Curnow)  !  !  I.  of  Purbeck,  Plymouth  and  Corfe  castle  (Holmes  1865)  !  !  Lynmouth, 
Durlestone  head  and  Peveril  point,  Swanage  (Holmes  1883)  !  !  Dovedale  at  the  opening 
of  Halldale  (Holmes  1875)  !  !  Grange  and  Arnside  (Boswell  1873) ! !  Cheddar  (Eos-well 
1873)  !  !  Mendip  hills  (Boswell  1880)  !  !  Shaugh  bridge,  Devon  (Holmes  1884). 
Colvend,  Scotland  (Cash  and  McAndrew  1883)  !  !  Ruins  at  Innisfallen  (Stewart  and 
Holt  1885)  !  !  O'Donoghue's  Prison,  Lough  Leane  g  (Holt  1885)  !  !  Mouse  island, 
Killarney  (Holt  1885).  Whitbarrow,  Westmoreland  (Barnes  1871)  ! ! 

Leaves  longer  and  broader  than  in  M.  brachydontia,  all  circularly  arcuato- 
incurved  when  dry,  and  glossy  at  the  back.  The  fruit  has  only  been  found 
at  Angouleme,  in  France,  by  M.  Philibert  in  1867,  for  some  of  whose  speci- 
mens I  am  indebted  to  the  kindness  of  M.  Husnot.  Some  botanists  have 
been  disposed  to  refer  this  moss  to  Mollia  tortuosa,  but  they  are  quite  distinct, 
and  the  glossy  stiff  little  cushions  of  M.  nitida  have  an  aspect  so  peculiar  that 
it  may  always  be  identified  by  the  naked  eye  alone. 


22.  MOLLIA  INCLINATA  (Hedw.  fit.)  Lindb. 

Dioicous ;  densely  tufted.  Leaves  elongate, lineal,  undulate,  suddenly 
pointed,  mucronate  with  the  excurrent  nerve.  Caps,  oval-oblong,  cer- 
nuous  ;  peristome  twisted.  (T.  XXXVII,  B.) 

SYN. — Barbula  nervosa  BRID.  Muse.  rec.  II,  P.  I,  199  p.p.  (1798),  Mant.  95  p.p.  t.  19  (1819). 

Tortula  inclinata  HEDW.  FIL.  in  WEB.  MOHR  Beitr.  i,  123,  t.  5  (1805).  HOOK.  GREV.  in 
BREWST.  Edin.  J.  i,  298  (1824).  DE  NOT,  in  Mem.  ace.  Torin.  xl,  322  (1838),  Syllab. 
181  (1838),  Muse.  ital.  I,  65,  t.  33  (1862),  Epil.  bri.  ital.  558  (1869).  LINDB.  De  Tort. 

B 

Tortula  nervosa  BRID.  Sp.  muse.  I,  262  p.p.  (1806). 
Tortula  curvata  SCHLEICH.  Cat.  pi.  helv.  30  (1807). 


TORTULACEjE.]  252  [Mollia. 

Barbula  inclinata  SCHWAEG.  Suppl.  I,  P.  I,  131,  t.  33  (1811).  ROEHL.  Deutsch.  fl.  iii,  80 
(1813).  SCHULTZ  Recens.  Barb,  et  Syntr.  218,  t.  33,  f.  27  (1823).  BRID.  Bry.  univ.  i, 
575  (1826).  HUEBEN.  muse.  germ.  332  (1833).  BR.  SCHIMP.  Bry.  eur.  fasc.  13 — 15,  p. 
25,  t.  12  (1842).  RABENH.  Deutsch.  kr.  fl.  ii,  s.  3,  107  (1848).  C.  MUELL.  Synops.  i,  600 
(1849).  SCHIMP.  Synops.  178  (1860),  2  ed.  217.  MILDE  Bry.  siles.  123  (1869).  HUSN. 
Mouss.  nord-ouest  83  (1873).  JURATZ.  Laubm.  oesterr.-ung.  121  (1882). 

Mollia  tortuosa  Var.  /3.  inclinata  LINDB.  Muse,  scand.  21  (1879). 

Dioicous  ;  in  large  broad  tufts,  flat,  dense,  dull  yellowish  green 
above,  fuscous  at  base.  Stems  robust,  | — i  inch  high,  dense-leaved, 
fragile.  Leaves  erect,  acute,  nearly  straight,  lineal-lanceolate,  compli- 
cate and  cirrato-crisped  when  dry,  the  wings  somewhat  undulate,  the 
nerve  whitish  at  back,  excurrent  in  a  very  short  mucro  ;  basal  cells 
hyaline  very  narrow,  running  obliquely  upward  and  outward,  upper 
small,  roundish-quadrate,  papillose,  opaque.  Perich.  bracts  erect, 
longer,  narrower,  acuminate,  more  laxly  areolate  ;  seta  red,  flexuose, 
caps,  cernuous,  oval-oblong,  more  or  less  incurved  and  gibbous  at  base, 
castaneous  ;  lid  rufous,  narrowly  conic,  rostrate,  peristome  fugacious,  of 
two  spirals.  Male  infl.  terminal,  gemmiform,  bracts  ovate,  pointed, 
nerved. 

HAB. — Sandy  banks  and  heaths,  especially  by  the  sea  ;  sterile. 

Holton  stone-pits,  Oxford  (Boswell  1872)  !  !  Banks  by  the  sea,  Groomsport,  Co.  Down 
(Rev.  C.  H.  Waddell,  1885)  !  !  Dysart,  Forfar  (Ewing  1883)  ! ! 

Resembling  a  small  state  of  M.  tortuosa,  but  differing  by  the  shorter, 
broader,  lineal-lanceolate  leaves,  more  suddenly  pointed,  and  with  the 
margins  at  the  point  more  or  less  incurved  ;  the  capsule  also  is  generally 
more  gibbous  than  that  of  M .  tortuosa.  The  leaf  resembles  that  of  M.  flavo- 
virens  very  closely  in  areolation,  but  may  be  distinguished  from  it  by  being 
cirrato-crisped  when  dry. 


23.   MOLLIA  TORTUOSA  (L.)   Schrank. 

Dioicous;  in  large  pulvinate  tufts.  Leaves  dense,  strongly  curled, 
longly  lineal-lanceolate,  subulate,  undulate,  nerve  excurrent.  Caps, 
oblongo-cylindric,  peristome  contorted.  (T.  XXXVII,  C.) 

SYN. — Bryum  trichoides  longifolium,  crassiusculis  cauliculis,  capitulis  erectis  aduncis  acutis  DILL. 

in  RAY  Synops.  3  ed.  98  (1724). 
Bryum  cirratum,  setis  et  capsulis  longioribus  DILL.  Hist.  muse.  377,  t.  48,  fig.  40   A — D 

(1741)  et  Herbar. 
Bryum  tortuosum   L.   Sp.  plant,  ii,    1119,   (1753).     HUDS.   Fl.   angl.  408   (1762).     NECK. 

Meth.  muse.  227  (1771).     WITH.  Bot.  arr.   br.  veg.  ii,  675  (1776).     LIGHTF.  Fl.  scot,  ii, 

727  (1777).     EHRH.  Hann.  mag.  1780,  p.  236.     RELHAN  Fl.  cant,  suppl.  18  (1786).  Fl. 

danica  t.  888.     HULL  Br.  Fl.  P.  2,  255  (1799).     HOFFM.  Deutsch.  fl.  ii,  46  (1795)- 
Hypnum  tortuosum  WEB.  Spic.  fl.  goett.  90  (1778). 
Mnium  tortuosum  SWARTZ  Meth.  Muse.  27  (1781). 
Mollia  tortuosa  SCHRANK  Baiers.  fl.  ii,  458  (1789).     Pr.  fl.  salisb.  n.  833  (1792).     LINDB. 

Muse,  scand.  21  (1879). 


TORTULACE^E.]  253  [Mollta. 

Tortula  tortuosa  EHRH.  Beitr.  vii.  101  (1792).     SCHRAD.  Spic.  fl.  germ.  64  (1794).     BRID. 

Muse.  rec.   II,  P.  I,   189   (1798),  Sp.  muse.    I,    264  (1806).      SWARTZ  Muse.  suec.  39 

(1798).     ROEHL.   Moosg.    deutsch.  391    (1800).     ROTH  Fl.  germ,  iii,   P.  I,  202  (1800). 

HEDW.  Sp.  muse.  124  (1801).     RICH.  Fl.  amer.  bor.  ii,  295  (1803).     SMITH  Fl.  brit.  iii, 

1258  (1806)  ;  Eng.  bot.   t.  1708.     TURN.    Muse.  hib.    52  (1804).     HEDW.  FIL.  in  WEB. 

MOHR  Beytr.  i,  121,  t.  6  (1805).     P.  BEAUV.  Prodr.  93  (1805).     WAHLEN.  Fl.  lapp.  317 

(1812) ;  Fl.  carpat.  358  (1814).     HOOK.  TAYL.  Muse.  brit.  32,  t.  12  (1818).     GRAY  Nat. 

arr.  br.  pi.  i,  724  (1821).     HOOK.  Br.  fl.  ii,  46  (1833).     DE  NOT.  in  Mem.  ace.  Torin.  xl, 

322  (1838),  Syllab.  182  (1838),  Muse.  ital.  I,  66,  t.  39  (1862),  Epil.  bri.  ital.  556  (1869). 

WILS.  Bry.  brit.  125,  t.  12  (1855).     BERK.  Handb.  br.  m.  255  (1863).     LINDB.  de  Tort. 

253  (1864).     HOBK.  Syn.  Br.  m.  72  (1873). 
Barbula  tortuosa  WEB.  MOHR  Bot.  Tasch.  205  (1807).     SCHWAEG.  Suppl.  I,  P.  I,  129,  t. 

33  (1811).     VOIT  Muse.  herb.  53  (1812).     ROEHL.  Deutsch.  fl.  iii,  80  (1813).     MART.  Fl. 

cr.  erl.  8«  (1817).     BRID.  Mant.  muse.  95  (1819),  Bry.  univ.  i,  574  (1826).     FUNCK  Moost. 

23,  t.  15  (1821).     SCHULTZ  Recens.  Barb,  et  Syntr.  219,  t.  34,  f.  28  (1823).     HUEBEN. 

Muse.  germ.  333   (1833).     BR.  SCHIMP.  Bry.   eur.    fasc.    13 — 15,  p.    26,    t.  13  (1842). 

RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  107  (1848).     C.  MUELL.  Synops.  i,  601  (1849).   SCHIMP. 

Synops.   179  (1860),  2   ed.  218.     MILDE   Bry.  siles.    123   (1869).     HUSN,   Mouss.  nord- 

ouest  84  (1873).    JURATZ.  Laubm.  oesterr-ung.  122  (1882).     LESQ.  JAMES  Mosses  N. 

Amer.  129  (1884). 

Dioicous ;  in  large  soft  swollen  pulvinate  tufts,  fine  yellow-green 
above,  fuscous  below.  Stems  tall  i — 4  in.  high,  dichotomous  fastigiate, 
tomentoso-radiculose  at  base.  Leaves  densely  crowded,  flexuoso-patent 
when  moist,  circinato-crispate  when  dry,  from  a  thin  pale  ovate  base, 
longly  lineal-lanceolate  subulate,  undulate,  nerve  strong,  excurrent  in  a 
short  subdenticulate  point ;  upper  cells  minute,  obscure,  basal  hyaline 
narrow  and  elongated,  running  obliquely  upward  and  outward  to  the 
margin.  Perich.  bracts  erect,  semivaginant,  narrowly  acuminate, 
whitish ;  caps,  on  an  elongated  red  seta,  erect,  from  ovate  oblongo- 
cylindric,  subregular  or  more  or  less  arcuate,  leptodermous,  at  first 
greenish-yellow,  afterwards  pale  brown,  when  old  dark  brown ;  lid 
elongato-conic,  subulate,  as  long  as  caps,  or  shorter,  not  annulate, 
peristome  red,  very  slender,  scabrous,  several  times  convolute.  Male 
plant  smaller,  with  shorter  lanceolate  leaves,  infl.  terminal,  bracts 
ovate,  concave,  suddenly  lanceolate,  nerved. 

HAB. — Rocks,  especially  calcareous,  but  also  on  sandstone  and  on  banks  and 
walls.     Fr.  7. 

Var.  /?.  dicranoidea  Ferg.  MSS. 

Stems  tall,  compactly  tufted  3 — 6  in.  high,  densely  radiculose  nearly  to 
the  apex  ;  leaves  subsecund,  firm,  rigid,  the  terminal  collected  into  a  cuspidate 
tuft. 
HAB. — M.  Uam,  Glen  Shee,  &c.  (Fergmson  1879) !  ! 

Var.  y.  angustifolia  (Jurat z.) 

Plants  shorter,  more  slender,  glaucescent ;  leaves  from  a  longish  base, 
very  narrowly  lanceolate-subulate,  the  hyaline  cells  extending  far  up  the 
basal  margin. 

SYN. — Barbula  tortuosa  Var.  (3.  angustifolia  JURATZ.  Laubm.  oesterr.-ung.  123. 

HAB.— Winnatts,  Derby  (T.  Rogers  1881) !  !     Wall  west  of  Bryanford,   Co. 
Down  (Rev.  H.  W.  Lett  1885)  t  ! 


TORTULACE.E.]  254  [Mollia. 

Var.  3.  fragilifolia  (Juratz.} 

Plants  short,  ±  in.  high,  yellow-green,  with  few  radicles;  leaves  short, 
incurved,  fragile,  and  breaking  off  near  the  summit,  so  that  the  apical  only 
are  entire,  points  short,  not  acuminate,  mucronate  with  the  excurrent 
rufescent  nerve,  which  is  pale  and  glossy  at  the  back. 

SYK.—Barbula  tortuosa  Var.  y  fragilifolia  JURATZ.  1.  c. 
Tortula  thrausta  STIRTON  MSS. 

HAB.— On  a  wall  near  Killin  (Stirton  1868). 

This  fine  moss  varies  considerably  in  size  and  colour,  and  is  very  shy  of 
fruiting,  but  may  be  always  recognised  by  its  long  narrow  curled  leaves, 
with  thin  hyaline  cells  at  the  base.  The  var.  £.  has  much  resemblance  to 
M.  nitida  in  the  fragile  leaves,  but  their  soft  texture  and  yellow-green  colour 
sufficiently  distinguish  it. 


24.   MOLLIA  FRAGILIS   (Drumm.)   Lindb. 

Dioicous  ;  in  dense  tufts.  Leaves  dense,  straight,  erecto-patent, 
lanceolate-subulate,  breaking  off  at  the  points,  margin  plane,  nerve 
excurrent.  Caps,  erect  subcylindric,  peristome  convolute.  (T. 
XXXVII,  D.) 

SYN. — Didymodon  fragilis  DRUMM.  Musci  Amer.  bor.  i,  n.  127  (1828).     HARTM.  in  Nya  hot.  not. 

1855,  p.  48. 
Tortula  fragilis  WILS.  in  HOOK.  Journ.  Bot.  iii,  437  (1841).      C.  HARTM.  Skand.  fl.  7  ed. 

377  (1858).     DE  NOT.  Muse.  ital.  I,  68,  t.  35  (1862)  ;    Epil.  bri.  ital.  557  (1869).     LINDB. 

de  Tort.  253  (1864).     HOBK.  Syn.  br.  m.  73  (1873). 
Trichostomum  fragile  C.  MUELL.  Synops.  i,  586  (1849). 
Barbula  fragilis  BR.  SCHIMP.  Bry.  eur.  fasc.  62—64,  Suppl.  t.  4  (1855),  Coroll.  141  (1855). 

SCHIMP.  Synops.  181  (1860),  2  ed.  219.      LINDB.  in  Oefv.  vet.  ak.  foerh.  xx,  387  (1863). 

JURATZ.  Laubm.  oesterr.-ung.  123  (1822).     LESQ.  JAMES  Mosses  N.  Amer.  129  (1884). 
Campylopus  Hartmani  SCHIMP.  MSS.     HARTM.  in  Nya  bot.  not.  1855,  p.  49. 
Tortula  Drummondii  MITT.  Journ.  Lin.  soc.  i,  Suppl.  27  (1859).     LINDB.  in  HARTM.  Skand. 

fl.  8  ed.  392  (1861). 

Barbula  Drummondii  MILDE  Bry.  siles.  124  (1869). 
Mollia  fragilis  LINDB.  muse,  scand.  21  (1879). 

Dioicous  ;  in  wide  dense  tufts,  yellow-green  above,  fuscous  below. 
Stems  erect,  straight,  rigid,  simple  or  dichotomous,  densely  matted 
with  brown  tomentum.  Leaves  very  crowded,  erecto-patent,  lanceolate- 
subulate,  very  fragile  in  the  upper  part,  the  margin  plane,  crenulate, 
the  comal  from  an  elongated  base,  capillaceo-subulate  ;  nerve  when  dry 
very  glossy  and  whitish  on  the  back,  excurrent  in  a  triquetro-semiterete 
subula ;  basal  cells  very  thin  and  hyaline,  prolonged  far  up  the  margin 
in  a  narrowing  band,  apical  minute,  highly  chlorophyllose,  obscure 
from  the  dense  covering  on  both  sides  of  truncate  papillae,  descending 
into  the  hyaline  base  with  an  acute  angle.  Caps,  erect,  short-necked, 
from  ovate,  oblong  and  subcylindric,  regular  or  lightly  curved,  lid  two- 


TORTULACE^.J  255  [Leptodontium. 

thirds  length  of  caps,  from  a  conic  base,  obliquely  rostrate ;  teeth 
very  scabrous,  slender,  2 — 3  times  convolute,  falling  away  with  the 
columella. 

Male  infl.  terminal,  subdiscoid,  with  numerous  antheridia,  bracts 
lanceolate-subulate. 
HAB. — Wet  mountain  rocks,  always  sterile. 

Ben  Lawers  (McKinlay  1865)  ! !     Clova  (Fergusson)  !  !     Ben  Laoigh,  Perth  (Ewing  1885). 
Roundstone,  Connemara  (Moore  1853) ! ! 

Very  like  M.  tortuosa,  but  distinguished  by  its  straight  leaves  with  longly 
excurrent  triangular  nerve. 

8.     LEPTODONTIUM  HAMPE. 

Linnaea  xx,  70  (1847). 

Leaves  squarroso-reflexed,  complicato-concave,  flexuose,  the  margin 
serrulate  or  eroso-crenulate.  Caps,  leptodermous,  narrow,  erect,  lid 
conic,  peristome  of  32  filiform,  straight,  erect,  smooth  teeth,  unequal, 
separate  or  anastomosing  here  and  there  in  pairs,  or  connascent ; 
calyptra  cucullate. — Der.  AETTTOS  slender  and  oSous  a  tooth. 

A  small  but  natural  genus,  of  which  the  types  are  the  Kast  Indian 
L.  squarrosum  (HooK.)  HAMPE  and  L.  aggyegatum  C.  MUELL.  and  principally 
distinguished  by  the  squarrose  serrate  leaves. 

Another  European  species  is  the  rare  Trichostomum  subalpinum  DE  NOT. 

CLAVIS  TO  THE  SPECIES. 

Stems  short,  slender ;  leaves  without  a  paler  border. 

Leaves  broad  at  point,  nerve  vanishing.  flexifolium 
acuminate  at  point,  nerve  excurrent,  gemmiferous.  gemmascens 

Stems  tall,  robust ;  leaves  with  a  pale  border.  recurvifolium 

i.  LEPTODONTIUM  FLEXIFOLITJM  (Dicks.)  Hampe. 

Dioicous ;  short,  nearly  simple.  Leaves  reflexed,  oblong-ligulate, 
apiculate,  coarsely  serrate  at  apex,  nerve  lost  at  or  below  the  point. 
Caps,  small,  narrowly  cylindric,  lid  conic  with  a  short  obtuse  point. 
(T.  XXXVII,  E.) 

SYN. — Bryum  flexifolium  DICKS,  pi.  crypt.  Ill,  5,  t.  7,  f.  9  (1793).      WITH.   Bot.  arr.   br.  veg. 

3   ed.   iii,  815   (1796).      HULL   Br.   fl.  P.  2,  258  (1799).      BRID.  Muse.   rec.  II,  P.  Ill, 

55  (1803). 
Trichostomum  flexifolium  SM.  Fl.  brit.  1246  (1804),  Eng.  bot.  t.  2493.     BRID.  Sp.  muse.  I, 

242  (1806),  Mant.  86  (1819),  Bry.  univ.  i,  499  (1826).      C.  MUELL.  Synops.  i,  577  (1849). 

MILDE  Bry.  siles.  106  (1869). 
Didymodon  flexifolium  HOOK.  TAYL.  Muse.  br.  66,  t.  20  (1818).       GRAY  Nat.  arr.  br.   pi. 

i,  742  (1821).     HOOK.  Fl.  scot.  P.  II,  135  (1821) ;  Br.  fl.  ii,  28  (1833).     SCHWAEG.  Suppl. 

II,  P.  2,  t.  184  (1826).      BR.    SCHIMP.   Bry.   eur.  fasc.   29—30,    Mon.   6,    t.   4   (1846). 

RABENH.    Deutsch.   kr.  fl.  ii,   S.  3,  103   (1848).      WILS.    Bry.   brit.   109,  t.  20  (1855). 

SCHIMP.  Synops.  133  (1860),  2  ed.  163.     BERK.  Handb.  br.  m.  265  (1863).     HOBK.  Syn. 

br.  m.  60  (1873).     HUSN.  Mouss.  nord-ouest  69  (1873). 
Leptodontium  flexifolium  HAMPE  Linnaea  xx,  70  (1847).     LINDB.  rje  Tort.  227  (1864). 


TORTULACE^E.]  256  [Leptodontium. 

Dioicous;  gregariously  caespitose,  nearly  simple,  i — 2  in.  high, 
fragile,  yellowish,  succulent.  Leaves  reflexed,  squarroso-patulous, 
flexuose  when  moist,  curled  when  dry,  from  an  erect  base,  oblong- 
ligulate,  apiculate,  coarsely  and  unequally  serrate  at  apex,  carinate, 
margin  plane  above,  recurved  below,  nerve  vanishing  just  below  the 
apex  ;  cells  at  base  elongated,  pellucid,  smooth,  above  small, 
hexagonal  rounded,  finely  papillose,  perich.  bracts  broader,  vaginant. 
Caps,  on  a  long  slender  yellowish  seta,  erect,  narrowly  cylindric,  lepto- 
dermous,  fuscous,  when  dry  sulcate,  slightly  contracted  below  the 
mouth ;  lid  conic  with  a  short  obtuse  point ;  annulus  narrow,  frag- 
mentary ;  teeth  slender,  fugacious,  nearly  entire,  bifid  or  cohering, 
pale,  smooth,  arising  below  the  orifice  of  caps.  Male  plant  more 
slender,  infl.  terminal,  bracts  ovato-lanc.,  concave,  erecto-patent  serrate. 

HAB. — Bare  gravelly  and  turfy  places,  not  common.     Fr.  2 — 4. 

Croydon  (Dickson).  Ben  Ledi  and  Callander  (Walker- Arnott).  Buxton  (Greville). 
Congleton  Cloud  and  Alderley  Edge,  Cheshire,  c.  fr.  (Wilson)  !  !  Wrexham  c.  fr. 
(Bowman  1835)  !  Manchester  c.  fr.  (Hobson)  !  Todmorden  c.  fr.  (Nowell  1848)  ! 
Forley,  Derby,  c.  fr.  (Hunt)  !  Blackdown,  Sussex  (Mitten).  Glenprosen,  Clova.  c.  fr. 
(Fcrgusson)  !  !  Powder  hill  and  Bagley  wood,  Oxon.,  c.  fr.  (Boswell  1863)  !  ! 
Penzance  (Curnow)  \ 

This  moss  appears  to  be  more  frequent  in  Britain  than  on  the  Continent, 
and  is  not  found  in  S.  Europe.  Did.  styriacus  JURATZ.  appears  to  be  only  a 
variety  with  the  leaves  erecto-patent  and  more  distantly  serrated. 

2.    LEPTODONTIUM  GEMMASCENS  (Mitt.)  Braithw. 

Short,  laxly  tufted,  nearly  simple.  Leaves  oblong-lanceolate, 
erecto-patent,  the  nerve  excurrent  and  bearing  obovate  gemmae  at  point, 
margin  serrulate  at  apex.  (T.  XXXVIII,  A.) 

SYN. — Dldymodon  gemmascens  MITT.  MSS. 

Didymodon  ftexifolius  Var.  (3.  gemmiferus  SCHIMP.  Synops.  2  ed.  164  (1876). 
Streptopogon  gemmascens  MITT.  Phil.  Trans,  v.  168,  p.  33  (1879). 

Stems  short,  fragile,  $ — 2  in.  high,  laxly  tufted,  scarcely  branched, 
bright  green  above,  fuscous  at  base.  Leaves  oblong-lanceolate, 
acuminate,  erecto-patent,  the  lower  shorter,  somewhat  recurved,  margin 
erect,  minutely  spinuloso-serrate  at  apex ;  nerve  in  the  lower  leaves 
reaching  point,  in  the  upper  excurrent  and  bearing  at  tip  a  globular  mass 
of  obovate  green  gemmae,  often  having  fine  radicles  intermixed ;  cells  at 
base  elongated  and  pellucid,  above  rounded,  papillose  on  both  sides. 
Fruit  unknown. 

HAB. — Old  thatched  roofs  in  Sussex. 

Hurstpierpoint  and  Amberley  (Mitten  1845)  !  I     Near  Liff,  Dundee  (Fergusson). 


TORTULACE^.]  257  [Barbula. 

Although  Mr.  Mitten  has  referred  this  moss  to  another  genus,  in  the 
absence  of  fruit  I  prefer  retaining  it  near  Leptodontium  flexifolium,  to  which  in 
areolation  it  is  certainly  allied,  though  quite  distinct  as  a  species ;  the  leaves 
are  not  squarrose,  but  divergent,  and  the  gemmae  have  2 — 3  transverse 
septa. 

Although  it  disappears  with  the  removal  of  the  thatch,  when  this  has 
been  renewed  and  is  passing  into  decay,  L.  gemmascens  is  certain  to  reappear. 


3.    LEPTODONTIUM  RECURVIFOLIUM    (Tayl.)  Lindb. 

Dioicous ;  tall,  loosely  caespitose.  Leaves  squarrose,  elliptic- 
oblong,  pale-bordered,  coarsely  serrate,  nerve  excurrent  in  an  apiculus. 
(T.  XXXVIII,  B.) 

SYN. — Bryum  recurvifolium  TAYL.  MSS. 

Didymodon   recurvifolius   WILS.    Bry.   br.   no,    t.  41  (1855).     BERK.  Handb.  br.  m.  266 
(1863).     HOBK.  Syn.  br.  m.  60  (1873).     SCHIMP.  Synops.  2  ed.  165  (1876). 

Leptodontium  recurvifolium  LINDB.  De  Tort.  227  in  obs.  (1864). 

Dioicous ;  in  lax  irregular  tufts,  deep  green  above,  fuscous  or  black 
below.  Stem  I — 4  in.  high,  geniculate,  erect,  free  from  radicles.  Leaves 
from  an  erect  base,  squarrose,  patulous  and  somewhat  recurved  from 
the  middle,  crispate  and  undulate  when  dry,  from  an  ovate  or  oblong 
base,  broadly  lanceolate,  or  elliptic  oblong,  obtuse,  somewhat  coriaceous; 
nerve  thin  semiterete,  broader  below,  excurrent  in  a  short  apiculus  ; 
margin  plane,  serrate  in  the  upper  half;  basal  cells  minute,  pellucid, 
rectangular,  upper  rounded,  minutely  papillose,  opake  with  chlorophyl, 
except  the  3 — 5  marginal  rows  which  are  empty,  smooth,  and  form  a 
pale  border.  Fruit  unknown. 

HAB. — Wet  rocky  places  in  mountains,  very  rare. 

Knockavohila,    Killarney  (Taylor    1842)  !     Ben   Voirlich   by    Loch    Lomond    (McKinlay 
1863) !     Glyder  Vaur  (Griffith  1878) ! !     Tyn-y.groes  (Holt  1885) !  ! 

This  fine  moss  appears  to  be  extinct  both  in  the  Irish  and  Scotch 
localities,  so  that  its  discovery  in  Wales  is  an  interesting  event.  The  Ben 
Voirlich  plant  has  the  leaves  more  coarsely  areolate,  with  a  stronger  nerve, 
the  apex  more  obtuse  and  larger  serratures. 


9.  BARBULA   HEDW. 

Fund.  muse.  II,  92  (1782). 

Plants  caespitose,  branched,  slender,  usually  tinged  with  rufous-  or 
rusty-brown.  Leaves  small,  from  an  oval  base,  gradually  lanceolate, 
not  accrescent  upward ;  nerve  terete,  vanishing  or  rarely  excurrent ; 


TORTULACE.E.]  258  [Barbula. 

basal  cells  small,  rectangular,  slightly  hyaline,  upper  small,  incrassate, 
rotundate,  or  quadrate.  Caps,  oval  or  cylindraceous,  peristome  of 
16  teeth  on  a  very  short  membrane,  cleft  to  base  into  two  slender  legs, 
papillose,  short  or  imperfect,  or  longer  and  spirally  twisted,  sometimes 
wanting.  Der. — barba,  a  beard. 

Although  Barbula  and  Tortula  have  generally  been  combined,  and  must  be 
if  we  limit  our  views  by  the  peristome  alone,  the  habit  and  general  aspect  of 
the  species  are  so  distinctive,  that  it  is  far  more  convenient  to  keep  them 
separate.  These  in  Barbula  are  the  rusty  tinge  which  more  or  less  pervades 
the  plants,  and  the  lanceolate  leaves  gradually  tapering  to  an  acute  point, 
appressed  when  dry,  with  recurved  margins,  the  cells  of  the  upper  part  being 
rounded  or  quadrate  and  well  defined.  We  have  also  in  Europe  B.  bicolor 
BR.  Sen. — B.  Lamyi  (SCHIMP.) — B.cordata  QURATZ.) — B.  rufa  (LORENTZ) 
— B.  flavipes  BR.  Sen. — B.  gigantea  FUNCK — B.  crocea  BRID. — B.  icmadophila 
BR.  Sen.  and  B.  obtusula  LINDB.  Schimper's  B.  Woodii  is  nothing  but 
A  mphoridium  Mougeotii. 

CLAVIS   TO   THE    SPECIES. 

Gymnostomous.  curvirostris. 

Peristomate. 

Leaves  without  thickened  limb. 
Peristome  short,  erect. 

Infl.  paroicous,  lower  leaves  red.  rubella. 

Infl.  dioicous. 

Leaves  acute,  nerved  to  apex. 

L.  ovato-lanc.,  basal  cells  rounded,  per.  short,  pale,     lurida. 
L.  lanc.-acuminate,  basal  cells  rectang.  per.  longer, 

red.  rigidula. 

Leaves  obtuse,  nerve  vanishing  below  apex. 

L.  short,  ovato-lanc.,  caps,  oblong.  brevifolia. 

L.  long,  lanc.-acuminate,  caps,  cylindric.  spadicea. 

Peristome  elongated,  contorted. 

Leaves  squarroso-recurved. 

L.  dense,  gradually  acuminate,  acute.  fallax 

L.  distant,  strongly  recurved,  short  pointed.  reflexa. 

Leaves  erecto-patent. 

L.  points  acuminate,  very  acute. 
Nerve  excurrent. 

L.   ovate  acuminate,  aristate  with   the  thin 

nerve.  acuta. 

L.  ovato-lanc.  cuspidate  with  the  thick  nerve.  Hornschuchii. 
Nerve  vanishing  just  below  apex. 

Margin  of  leaf  entire.  cylindrica. 

Margin  sinuous  in  upper  part,  serrate  at  apex,  sinuosa. 
L.  points  short,  obtuse. 

Perich.  bracts  large,  convolute.  couvoluta. 

Perich.  bracts  not  conspicuous. 

L.  short,  linear,  revolute  at  margin  revoluta. 

L.  oblong-lane.,  margin    revolute   in  lower 

half.  unguiculata. 

Leaves  surrounded  with  a  thickened  limb.  mucronata. 

Sect.  i.  HYMENOSTYLIUM  (End.)  Tall,  densely  caespitose,  much 
branched.  Capsule  ovate  or  oval,  truncate,  gymnostomous  ;  lid  with  a  long 
beak. 


TORTULACE.E.]  259  [Barbula. 

i.   SARBULA  CURVIROSTRIS   (Ehrh.)  Lindb. 

Dioicous;  tall,  densely  caespitose.  L.  linear-lane.,  acute,  with 
recurved  margins,  nerve  vanishing  at  apex.  Caps,  ovate,  gymnostomous  ; 
lid  obliquely  rostrate,  systylious.  (T.  XXXVIII,  D.) 

SYN. — Pottia  ciirvirostris  EHRH.  Beitr.  i,  188  (1787). 

Gymnostomum  curvirostre   HEDW.   Stirp.  cr.   ii,  68,  t.  24  (1789),   Sp.  muse.  33    (1801). 

HOFFM.  Deutsch.  fl.  ii,  28  (1795).     BRID.  Muse.  rec.  II,  P.  I,  45  (1798),  Sp.  muse.  I,  39 

(1806),  Mant.  18  (1819),  Bry.  univ.  i,  84  (1826).      ROTH  Fl.  germ,  iii,  P.  I,  125  (1800). 

ROEHL.  Moosg.  deutsch.  82  (1800).      SMITH  Fl.  brit.  1164  (1804),  Eng.  hot.   t.  2214. 

P.  BEAUV.  Prodr.  59  (1805).     WEB.  MOHR  Bot.  Taseh.  83  (1807).     SCHKUHR  Deutsch. 

kr.  gew.   P.  II,  22,  t.   10    (1810).     SCHWAEG.  Suppl.   I,  P.  I,  32  (1811).     WAHLENB. 

Fl.  lapp.  302  (1812).     MART.  Fl.  crypt,  erl.    122  (1817).     HOOK  TAYL.  Muse.  brit.  ii, 

t.  6    (1818).     HARTM.    Skand.   fl.   382  (1820).     GRAY    Nat.    arr.  br.  pi.  i,  714  (1821). 

HOOK.  Fl.  scot.  P.  II,  122  (1821),  Br.  fl.  ii,  7  (1833).     NEES  HORNSCH.  Bry.  germ.  170, 

t.  ii,  f.  34  (1823).     HUEBEN.  Muse.   germ.  55  (1833).     MACK.  Fl.   hib.  P.  2,  9  (1836). 

DE  NOT.  Syllab.  289  (1838).  Epil.  bri,  ital.  602  (1869).    BR.  SCH.  Bry.  eur.  fasc.33— 36, 

p.  8,  t.  7   (1846).     RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  122  (1848).     WILS.   Bry.  brit.  42, 

t.  6  (1855).     SCHIMP.   Synops  43    (1860),  2  ed.  43.     BERK.  Handb.    br.  m.   294   (1863). 

HOBK.  Syn.  br.  M.  32  (1873).    JURATZ.  Laubm.  oesterr.-ung.  15  (1882).     LESQ.  JAMES 

Mosses  N.  Amer.  54  (1884). 

Bryum  stelligerum  DICKS.  Crypt,  fasc.  II,  3,  t.  4,  f.  4  (1790). 
Gymnostomum  stelligerum   BRID.  Muse.  rec.  II,   P.  I,  46  (1798),  Sp.  muse.  I,  39  (1806), 

Mant.  18  (1819),  Bry.  univ.  i,  89,  p.p.     SCHRAD.  Journ.  bot.  ii,  P.  I,  55  (1799).     SMITH 

Fl.  brit.  1164;  Eng.  bot.  t.  2202. 

Gymnostomum  ariiginosum  (non  SMITH).     NEES  HORNSCH.  op.  c.  160,  t.  10,  f.  19. 
Weissia  ciirvirostris  C.  MUELL.  Synops.  i,  658  (1849). 
Hymenostylium  curvirostre    MITT.  Journ.    Linn.  soc.  i,   Suppl.  32    (1859).      LINDB.  De 

Tort.  230  (1864).     MILDE  Bry.  siles.  48  (1869). 
Barbula  ciirvirostris  LINDB.  Muse,  scand.  22  (1879). 

Dioicous  ;  in  soft  tumid  tufts,  yellow-green  above  with  a  fuscous 
tinge,  ferruginous  below.  Stems  i — 4  in.  high,  fragile,  much  branched, 
fastigiate,  radiculose.  Leaves  erecto-patent,  scarcely  incurved  when 
dry,  lane,  acute,  carinate,  minutely  papillose,  margin  recurved,  often 
subserrated  above  the  base,  nerve  semi-terete,  prominent  at  back, 
vanishing  below  apex  ;  cells  at  base  pellucid,  elongated,  above  quadrate 
and  oval,  papillose.  Seta  straw-colored,  reddish  at  base.  Caps,  ovate,  or 
subspherical,  pachydermous,  gymnostomous,  rufous,  glossy,  when  old 
turbinate ;  lid  from  a  conic  base,  with  a  long  subulate  oblique  beak, 
systylious  and  long  persistent ;  calyptra  reaching  middle  of  caps,  long- 
beaked.  Male  plants  similar  to  the  female,  infl.  terminal,  bracts  ovate, 
acute. 
HAB. — Alpine  calcareous  rocks.  Fr.  9. 

Var.  ft.  commutata  (Mitt.)  Lindb. 

Plants  taller,  more  rigid,  tinged  with  brown  ;  leaves  long,  narrow,  erect, 
more  obtuse,  the  cells  all  more  or  less  rectangular,  pellucid,  smooth. 
(T.  XXXVIII,  E.) 

SYN. — Hymenostylium  commutatum  MITT.  Journ.  Linn.  Soc.  i,  Suppl.  32  (1859). 
Barbula  ciirvirostris  var.  commutata  LINDB.  Muse.  Scand.  22  (1879). 


TORTULACE^.]  260  [Barbula. 

HAB. — In  similar  localities,  but  less  frequent. 

Nant-y-Fydd,  Wrexham  (Bowman)  !  !  Trefriew,  N.  Wales  (Dr.  Wood  1861) !  Pont-y- 
Prid  (Holmes  1878)  !  !  Ptarmigan  Mtn.,  Perth  (Holt  1880)  !  !  Cautley  Spout,  Yorks. 
(West  1881) !  !  Glen  Meay,  I.  of  Man  (Holt  1880)  ! !  Ravensdale,  Derby  (Holt  1883)  ! ! 
Ben  Laoigh,  Perth  (Ewing  1884)  !  !  Gainford,  Durham  (R.  Barnes  1887)  !! 

Frequently  met  with  on  mountain  rocks  and  often  encrusted  with  lime. 
It  varies  greatly  in  height  and  density,  and  also  in  the  form  of  capsule  and 
length  of  leaves,  and  after  much  study  we  have  come  to  the  conclusion  that 
H.  commutatum  cannot  be  maintained  as  a  species,  for  the  two  forms  of 
areolation  run  into  each  other,  even  on  the  same  plant. 

B.  curvirostris  much  resembles  Mollia  aruginosa,  but  may  be  known  by  its 
broader  leaves  with  recurved  margins  and  narrower  nerve,  the  cells  lax  and 
hyaline  at  base,  quadrate  and  well  defined  above,  the  pachydermous  rufous 
capsule,  and  subulate  systylious  lid. 

Lindberg  distinguishes  three  forms  of  the  species,  a.  scabra  with  shorter 
leaves,  and  scabrous,  quadrate  cells.  (3.  Iceviusciila  with  long  narrow  leaves, 
and  scarcely  scabrous  quadrate  cells,  y.  commutata,  with  long  narrow  leaves, 
and  smooth  rectangular  cells. 

Sect.  2.  ERYTHROPHYLLUM  Lindb.  Leaves  lanceolate,  acuminate, 
the  lower  rusty  red.  Capsule  subcylindric,  teeth  16,  lanceolate,  tender,  with 
scarcely  any  basal  membrane. 


2.  BARBULA  KUBELLA  (Hoffm.)  Mitt. 

Paroicous.  Leaves  recurved,  lineal-lanceolate,  nerved  to  apex, 
lower  red,  margin  recurved.  Caps,  cylindric,  lid  short-beaked,  teeth  pale 
red.  (T.  XXXIX,  A.) 

SYN. — Bryum  rubellum  HOFFM.  Deutsch.  fl.  ii,33  (1795). 
Grimmia  rubella  ROTH  Fl.  germ,  iii,  P.  I,  149  (1800). 
Weissia  rubella  ROEHL.  Moosg.  deutsch.  142  (1800). 
Grimmia  recurvirostris  SM.  Fl.  brit.  1190,  excl.  syn.  (1804)  ;  Eng.  bot.  t.  1438.  TURN. 

Muse.  hib.  19  (1804). 
Grimmia  curvirostris  WEB.  MOHR  Bot.  Tasch.  135   (1807).      VOIT  in  STURM  Deutsch.  fl. 

ii,  heft  14  (1813)  ;  Muse,  herbip.  29  (1812). 
Weissia  curvirostra   HOOK.  TAYL.  Muse.  brit.  46  excl.  syn.  t.  14  (1818).     HOOK.  Fl.  scot. 

P.  II,  130  (1821),  Br.  fl.  ii,  22  (1833). 
Anacalypta  recurvirostris  FUERN.  in  Flora  xii,  P  II,  Erg.  25  (1829).     NEES  HORNSCH.  Bry. 

germ,  ii,  P.  II,  151  excl.  syn.  t.  37,  f.  6  (1831). 
Anacalypta  rubella  HUEBEN.  muse.  germ.  119  (1833). 
Didymodon  rubellus  BR.  SCH.  Bry.  eur.  fasc.  29-30,  p.  3  excl.  syn.  t.  i  (1846).     WILS.  Bry. 

br.   106,  t.  14  (1855).     SCHIMP.  Synops.  130  (1860),  2  ed.  160.     BERK.  Handb.  br.    m. 

264  (1863).     HOBK.  Syn.  br.  m.  58  (1873).    HUSN.  Mouss.  nord-ouest  68  (1873),  Muse. 

gall.  82,  t.  23  (1885).     JURATZ.  Laubm.    oesterr.-ung.  98  (1833).     LESQ.  JAMES  Mosses 

N.  Amer.  104  (1884). 
Trickostomiim  rubellum   RABENH.   Deutsch.  kr.   fl.  ii,  S.  Ill,  115  excl.   syn.   (1848).     C. 

MUELL.  Synops.  i,  581  excl.  syn.  (1849).     HARTM.  Sk.  fl.  7  ed.  381  (1858).     LINUB.  De 

Tort.  226  (1864).     MILDE  Bry.  siles.  101  (1869). 
Barbula  rubella  MITT.  Journ.  Linn.  soc.  xii,  162  (1869).      LINDB.  Muse,  scand.  22  (1879). 

Paroicous  and  synoicous ;  caespitose,  deep  green  above,  ferruginous 
red  below,  i — 2in.  high,  slender,  branched.  Leaves  curled  when  dry, 


TORTULACE^.I  261  [Barbula. 

patent  and  recurved  when  moist,  the  lower  lanceolate,  upper  suddenly 
larger,  from  an  erect  concave  base,  lineal-lanceolate,  acuminate,  carinate, 
minutely  papillose  on.  both  sides,  the  margin  recurved,  nerve  terete, 
vanishing  below  or  in  the  apex ;  cells  at  base  pellucid  rectangular,  above 
small  quadrate  and  chlorophyllose.  Perich.  bracts  longly  sheathing, 
thin  ;  caps,  erect,  on  a  long  reddish  seta,  cylindraceous,  rarely  oblong 
or  oval,  leptodermous,  pale  brownish-green,  finally  reddish  ;  annulus  of 
two  rows  of  large  cells,  very  fragile,  lid  conic,  with  a  short  straight  or 
slightly  oblique  beak;  per.  on  a  short  basal  membrane,  pale  red,  soft, 
of  16  flat  linear  teeth,  rarely  cleft  or  perforated,  the  articulations  nodose 
and  papillose.  Antheridia  usually  naked  in  the  axils  of  the  perich.  bracts. 

HAB. — Walls,  rocks   and   stony  ground,   principally  in  subalpine  districts. 
Fr.  8—9. 

Var.  /?  dentata  (Schimp.) 

Plants  dingy  green,  the  leaves  longer,  with  the  margin  recurved  only  to 
the  middle  and  toothed  toward  apex. 

SYN. — Didymodon  rubellus  ft  dentatus  SCHIMP.  Synops.  131. 
Didymodon  dentatus  JURATZ.  MSS. 
Trichostomum  alpigenum  VENT.  MSS. 
Didymodon  alpigenus  JURATZ.  Laubm.  oesterr.-ung.  98. 

HAB. — Wet  stony  places  on  mountains. 

Clayton   downs,    Sussex   (Mitten)  \     Schiehallion   (Braithwaite  1884)  !  !      Coneysthorpe, 
Yorks.    (Spruce  1878).     Miller's  dale  (Holt  1879)  !  !     Ingleborough  (Cash  1880)  !  ! 

VAR.  y.  ruberrima  (Fergusson). 

Plants  more  slender,  slightly  branched,  ^ — 2in.  high  ;  leaves  short,  more 
distant,  all  vinous  red,  entire,  from  an  oblong  base,  suddenly  narrowed  near 
the  middle  and  incurved  at  margin,  acutely  acuminate. 

HAB. — Mountain  rocks. 

Head  of  Glen  Lochay  (Arnott  and  Borrer)  !     Glen  Tilt  (West   1880)  !  !     Ben  Lawers 
(Braithwaite  1865)  !  !     Clova  (Fergusson)  !  ! 

Barbula  rubella  varies  considerably  in  size  and  density,  but  is  very  uniform 
in  the  fruit,  and  always  more  or  less  red  in  the  lower  leaves.  In  Var.  /3.  the 
denticulation  varies  much,  but  in  no  case  have  I  seen  it  so  spinulose  as  in 
continental  specimens.  The  Var.  y.  differs  widely  from  the  type,  and  has 
quite  the  aspect  of  a  distinct  species,  indeed  it  was  recorded  as  Didymodon 
rufus  LORENTZ,  but  Barbula  vufa  has  a  broader  leaf,  gradually  narrowing 
upward,  the  base  of  different  shape  with  smaller  and  more  numerous  cells, 
and  the  areolation  of  upper  part  not  opaque  and  indistinct. 

Sect.  3.  EUBARBULA  Lindb.  Plants  slender  or  robust,  young  leaves 
green,  becoming  more  or  less  of  a  rusty  brown  colour,  lanceolate  with 
recurved  margins  ;  caps,  narrow,  teeth  short  or  rudimentary,  or  long  and 
convolute. 


ToRTULACEjE.]  262  [Barbula. 

3.  BARBULA  LURIDA  (Hornsch.}  Lindb. 

Dioicous;  csespitose.  Leaves  straight,  fuscescent,  ovato-lanc., 
nerved  to  apex,  the  margin  recurved.  Caps,  oblongo-cylindric,  teeth 
pale  yellow,  short,  cleft.  (T.  XXXIX,  B.) 

Syx.—Didymodon  luridus  HORNSCH.  in  L.  Syst.  veg.  16  ed.  iv,  P.  I,  173  (1827).     BR.  SCH.  Bry. 

eur.  fasc.  29-30,  p.  4,  t.  2  (1846).     RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  102  (1848).     WILS. 

Bry.  br.  107,  t.  41  (1855).  SCHIMP.  Synops.  131  p.p.  (1860),  2  ed.  161.  BERK.  Handb.  br. 

m.  265  (1863).    DE  NOT.  Epil.  bri.  ital.  566  (1869).    HOBK.  Syn.  br.  m.  59  (1873).    HUSN. 

Mouss.  nord-ouest  68  (1873),  Muse.  gall.  83,  t.  23  (1885).  JURATZ.  Laubm.  oesterr.-ung. 

99  (1882).     LESQ.  JAMES  Mosses  N.  Amer.  104  (1884). 
Barbula  deusta  BRID.  Bry.  univ.  i,  553  (1826). 

Cynodon  luridus  HORNSCH.  MSS.  BRID.  Bry.  un.  i,  Suppl.  818  (1827). 
Didymodon  trifarius  HUEBEN.  Muse.  germ.  288  (1833). 
Trichostomnm  luridum  SPRUCE  in  Ann.  mag.  n.  h.  2  ser.  iii,  379  (1849).     LINDB.  in  Oefv. 

vet.  ak.  forh.  xvi,  210  (1859),  De  Tort.  226~(i864).     HARTM.  Skand.  fl.  8  ed.  397  (1861). 

MILDE  Bry.  siles.  102  (1863). 

Trichostomum  trifarium  (non  SM.)  C.  MUELL.  Synops.  i,  574,  excl.  syn.  (1849). 
Barbula  trifaria  MITT.  Journ.  Lin.  soc.  i,  Suppl.  36  (1859). 
Barbula  lurida  LINDB.  Muse,  scand.  22  (1879). 

Dioicous  ;  in  small  bright  green  tufts,  with  a  lurid  brownish  tint 
when  old  and  dry;  stems  simple  or  branched.  Leaves  patulous  when 
moist,  straight  and  subimbricated  when  dry,  lower  broadly  ovato-lanc., 
upper  oblongo-lanc.,  shortly  acuminate,  sometimes  muticous,  very  con- 
cave, nearly  smooth,  margin  reflexed  but  flat  below  the  point,  nerve 
rufescent,  stout,  vanishing  at  or  below  apex ;  areolation  very  distinct, 
minutely  hexagono-rectangular,  a  little  laxer  at  base.  Perich.  bracts 
erect,  oblongo-elongate,  subvaginant,  rather  laxer  ;  caps,  oval,  oblong  or 
subcylindric,  equal  or  a  little  curved,  ferruginous,  leptodermous,  annulus 
very  narrow,  persistent,  lid  narrow  conic,  straight  or  slightly  curved  ; 
teeth  very  slender,  irregular  or  rudimentary,  simple  or  bipartite,  pale 
yellow,  nearly  smooth,  without  basal  membrane.  Male  plant  more 
slender,  infl.  terminal,  gemmiform,  bracts  ovato-lanceolate. 

HAB. — Limestone  walls  or  crumbling  sandstone.     Fr.  n — 12. 

Near  Cork  (Wilson  1829)!  Trebarth  (Wilson  1864).  Kent  and  Sussex  (Mitten).  Wei 
burn,  Yorks.  (Spruce  1847)  '  Mutley,  Lipson  and  Laira,  Plymouth  (Holmes  1867)  ! 
Troup  head  (Rev.  J.  Fergusson  iSfg)  ! !  Headington,  Oxford  (Boswell  1880) !  !  Uff- 


burn,  Yorks.  (Spruce  1847)  '  Mutley,  Lipson  and  Laira,  Plymouth  (Holmes  1867)  !  ! 
Troup  head  (Rev.  J.  Fergusson  iSfg)  ! !  Headington,  Oxford  (Boswell  1880) !  !  Uff- 
moor  wood  (Bagnall  1872)!!  Tralee  (Moore).  Woolsonbury  hill  (Mitten).  Coneys- 


thorpe,  Yorks.   (Slater   1880)  ! !      Wetherby,    Yorks.  (Wesley  1875)  ! !      Banks  of  the 
Hodder,  Clitheroe  (Burgess  &•  Holt  1886)  ! ! 

This  moss  varies  much  in  size  and  density,  sometimes  reaching  a  height 
of  2  inches  ;  the  teeth  of  peristome  will  always  distinguish  it  from  B.  brevifolia 
and  rigidula,  but  the  older  synonyms  of  all  three  species  are  sadly  confused. 

4.  BARBULA   BREVIFOLIA   (Dicks.}  Lindb. 

Dioicous ;  caespitose.  Leaves  straight,  fuscescent,  ovato-lanc.  nerved 
to  apex,  the  margins  recurved.  Caps,  oblongo-cylindric,  teeth  pale  red, 
cleft  to  base,  on  a  basal  membrane.  (T.  XXXIX,  C.) 


TORTULACE^S.]  263  [Barbula, 

Svn.— Bryum  trichodes,  erectis  capitulis  fusco-nigris  DILL,  in  RAY  Synops.  3  ed.  96(1724). 

Bryum  palustre   brevifolium,   capsulis  nigricantibus    DILL.  Hist.  muse.  377,  t.  47,  f.  39 

(1741)  et  Herb. 

Weissia  recurvirostris  HEDW.  Stirp.  i,  19,  t.  7  (1787)  ? 
Bryum  brevifolium  DICK'S.  PL  crypt,  fasc.  II,  4  (1790). 
Trichostomum  lineare  SM.  Fl.  br.  1246,  excl.  syn.  (1804),  Eng.  bot.  t.  1598.  DAVIES  Welsh 

bot.  108  (1813).     DE  NOT.  Syllab.  186  (1838). 
Tr.  linoides  SM.  op.  c.  1247  exc^-  syn-  Eng.  bot.  t.  2295. 
Tr.  trifarium  SM.  op.  c.  1235  exc'-  syn-  Eng.  bot.  t.  1707. 

Didymodon  trifarius  (non  SWARTZ)  HOOK.  TAYL.  Muse.  brit.  67,  t.  20  (1818).  HOOK.  Fl. 
Scot.  136  (1821)  ;  Br.  Fl.  ii,  30  (1833*.  WAHLENB.  Fl.  suec.  ii,  1074  (1826).  AHNFELT 
in  FR.  Fl.  scan.  239  (1835). 

Trichostomum  tophaceum  BRID.  Mant.  84  (1819),  Bry.  univ.  i,  495  (1826).  DE  NOT.  Syll. 
187  (1838),  Epil.  bri.  ital.  506  (1869).  BR.  SCH.  Bry.  eur.  fasc.  18-20,  p.  9,  t.  6  (1843). 
RABENH.  Deutsch.  kr.  fl.  ii,  S.  Ill,  114  (1848).  C.  MUELL.  Synops.  i,  573  (1849). 
WILS.  Bry.  br.  113,  t.  20  (1855).  SCHIMP.  Synops.  149  (1860),  2  ed.  169.  BERK. 
Handb.  Br.  m.  260  (1863).  LINDB.  De  Tort.  227  (1864).  MILDE  Bry.  siles.  103  (1869). 
HOBK.  Syn.  br.  m.  60  (1873).  HUSN.  Mouss.  nord-ouest  73  (1873),  Muse.  gall.  85, 
t.  24  (1885).  LESQ.  JAMES  Mosses  N.  Amer.  109  (1884). 
Anacalypta  tophacea  BRUCH  in  NEES  HORNSCH.  Bry.  germ,  ii,  P.  II,  148,  t.  37,  f.  5  (1831). 

HUEBEN.  Muse.  germ.  120  (1833). 

Barbula  tophacea  MITT.  Journ.  Linn.  soc.  i,  Suppl.  35  (1859). 
Barbula  brevifolia  LINDB.  muse,  scand.  22  (1879). 
Didymodon  tophaceus  JURATZ.  Laubm.  oesterr.-ung.  100  (1882). 

Dioicous ;  in  dense  tufts,  olive  green  above,  reddish  below,  often 
coated  with  calcareous  deposit.  Leaves  from  an  erect  base,  patulous, 
very  minutely  verruculose,  from  ovate,  lineal-lane.,  obtuse,  carinate, 
concave,  nerve  vanishing  below  apex,  margin  revolute,  cells  minute, 
rounded,  incrassate,  at  base  laxer,  shortly  rectang.,  hyaline.  Perich. 
bracts  larger,  erect,  more  obtuse.  Caps,  on  a  thickish  red  seta,  erect, 
ovate  or  oblong,  rufo-fuscous  ;  annulus  not  defined ;  lid  with  an  oblique 
beak ;  per.  tubular  at  base,  the  teeth  imperfect  or  unequal,  pale  or  red, 
legs  partly  free,  partly  connate.  Male  plant  more  slender ;  infl.  gem- 
miform,  bracts  ovate,  acuminate,  nerved. 

HAS. — Calcareous  rocks  and  walls.     Fr.  10 — 2. 

Glasgow.  Clapham  springs  (Abbott).  Teesdale  (Backhouse).  Winwick  stone  quarry 
(Wilson  1843) !  !  Sussex  (Mitten).  Crambeck,  Castle  Howard,  and  near  York 
(Spruce  1847)  !  Ramsden  Clough  and  Todmorden  (Nozvell  1841)  ! !  Marple,  Bowdon, 
and  Southport  (Hunt  1865)  !  !  Killiney  (Sim  1867) !  !  Menai  declivity  (Hunt  1868) !  ! 
Ulverston  (Miss  Hodgson)  !  !  Gordale  and  Otley  (Hobkirk).  Erdington  and  Barnt 
Green,  Birmingham  (Bagnall)  !  !  Clifton,  Manchester  (Wild  1874;.  Plymouth 
(Holmes).  Wetherby  (Wesley  1878)!  !  Wembury,  Devon,  a  very  dwarf  dense  form 
(Holmes)  !  !  Berwick  coast  (Hardy).  Balcaskie,  Fife  (Howie  1863)  !  Springs  in  the 
cliff  at  Eastbourne,  forma  luxurians  (Roper  1887)  !  !  and  at  Hastings  (Jenner)  ! 

Var.  ft.   acutifolia  Schimp. 

Less  robust,  leaves  longer,  narrower,  acutely  acuminate,  when  moist 
recurvo-patulous. 

SYN.— SCHIMP.  Synops.  2  ed.  170. 

HAB. — Sandstone  rocks  near  Warrington  (Wilson).     Wet  clay  soil  near  Man- 
chester (Dr.  Wood).     Headington  Hill,  Oxford  (Boswell  1881)  !  ! 


TORTULACE^.]  264  [Barbula. 

Very  variable  in  size  and  colour  according  to  the  locality,  but  distinguished 
from  the  last  species  by  its  obtuse  leaves,  shorter  nerve  and  more  highly 
developed  peristome.  Dickson's  Bryum  brevifolium  is  certainly  identical  with 
the  typical  form  of  the  plant. 


5.  BARBULA  FALLAX  Hedw. 

Dioicous  ;  slender,  fuscescent.  Leaves  lax,  twisted  when  dry,  squar- 
rosely  recurved  when  wet,  ovate-lanceolate,  margin  recurved,  nerve 
vanishing  at  point.  Caps,  narrowly  ovate-oblong,  peristome  convolute. 
(T.  XXXIX,  D.) 

SYN. Muscus  capillarls  parvus,  cauliculis  tenuibus  longiusculis,foliolisbrevibus  angustis  acutis 

rarioribus  clnctis.     RAY  Synops.  2  ed.  31,  n.  18  (1696). 
Bryum  perangustis  foliis  et  cauliculis,  foliis  rarioribus  cinctis,  capitulis  erectis  e  surculis 

annotinis  egredientibus  DILL.  Cat.  giss.  225  (1719),  in  RAY  Synops.  3  ed.  99  (1724). 
Bryum  tenue  barbatum,  foliis  angustioribus  et  rarioribus  DILL.  Hist.  muse.  385,  t.  48, 

f.  49  (1741). 
Barbula  fallax  HEDW.  Stirp.  cr.  i,  62,  t.  24  (1787).  Sp.  muse.  120  (1801).  BRID.  muse.  rec. 

II,  P.  I,  201  (1798),  Mant.  92  (1819),  Bry.  univ.  i,  556  (1826).     WEB.  MOHR  Bot.  Tasch. 

211  (1807).     ROEHL.  Moosg.  deutsch.  436  (1800),  Deutsch.  fl.  Hi,  45  (1813).    SCHWAEG. 

Suppl.  I,  P.   I,  127  (1811).      WAHLENB.  Fl.  lapp.  318  (1812).      MART.  Fl.  cr.  erl.  89 

(1817).     SCHULTZ  Recens.  Barb,  et  Syntr.  211,  t.  33,  f.  21  (1823).     HUEBEN.  Muse. 

term.  326   (1833).      BR.   SCHIMP.  Bry.   eur.  fasc.  13-15,  p.  23,  t.  9  (1842).      SCHIMP. 
ynops.   169  (1860),  2  ed.  205.     RABENH.   Deutsch.  kr.  fl.  ii,   S.  3,    106  (1848).      C. 

MUELL.  Synops.  i,  616  (1849).     MILDE   Bry.  siles.  119  (1869).     HUSN.  Mouss.  nord- 

ouest  81   (1873),  Muse.  gall.   105,    t.  29   (1886).     JURATZ.  Laubm.  oesterr.-ung.  112 

(1882).     LESQ.  JAMES  Mosses  N.  Amer.  121  (1884). 
Mollia  fallax  SCHRANK  Bayer,  fl.  ii,  458  (1789). 

Bryum  fallax  DICKS.  PI.  crypt.  F.  Ill,  5  (1793).     HOFFM.  Deutsch.  fl.  ii,  44  (1795). 
Tortula  fallax  SCHRAD.  Syst.  samml.  kr.  gew.  I,  n.  53,  et   in   UST.  Neu.  ann.  xiv,  109 

(1796).     SWARTZ  Muse.  suec.  40  (1799).      ROTH  Fl.   germ,  iii,  P.  I,  212  (1800).     SM. 

Fl.    brit.    1252    (1804),    Eng.    Bot.    t.    2179.      TURN.    Muse.    hib.     47    (1804).      P. 

BEAUV.  Prodr.  92  (1805).     BRID.   Sp.  muse.   I,   255    (1806).     SCHULTZ  Fl.  starg.  305 

(1806).     WAHLEN.  Fl.  carp.  337  (1814).     HOOKTAYL.  Muse.  br.  32,  t.  12  (1818).     HOOK. 

Fl.  Scot.  P.  2,   127   (1821),  Br.  fl.  ii,  46  (1833).     GRAY  Nat.  an-,  br.  pi.  i,  724  (1821). 

MACK.  Fl.  hib.  P.  II,  26   (1836).     DE  NOT.  Syllab.  238  (1838),   Muse.  ital.  I,  58,  t.  29 

(1862),  Epil.  bri.  ital.  554  (1869).     WILS.  Bry.  br.  123,  t.  12  (1855).     BERK.  Handb.  br. 

m.  257  (1863).     HOBK.  Syn.  br.  m.  69  (1873). 
Tortula  Stokesii  TURN.  Muse.  hib.  48. 
Barbula  nervosa  SCHULTZ  Fl.  starg.  305  excl.  syn.  Brid. 
Tortula  imberbis  SM.  Fl.  brit.  1261  (1804).     LINDB.  De  Tort.  250  (1864). 

Dioicous ;  in  lax  wide  tufts,  fuscous-green  above,  rufescent  below, 
stems  i — 3  in.  high,  fastigiate  branched,  rooting  at  base.  Leaves 
rather  lax,  quickly  squarroso-recurved  when  wet,  erecto-patent  and 
twisting  when  dry,  from  a  broad  base  narrowly  lanceolate,  acuminate, 
carinate,  the  margin  revolute  in  the  lower  half,  and  longitudinally  plicate 
near  the  base,  nerve  strong,  rufescent,  reaching  apex  or  slightly 
excurrent  ;  cells  minute,  yellowish,  a  very  few  rectangular  at  base, 
papillose  rounded  and  incrassate  above ;  perich.  bracts  longer,  semi- 
vaginant  to  the  middle,  thence  narrowly  lanceolate  and  patent.  Caps, 
erect,  on  a  flexuose  purple  pedicel,  narrowly  ovate-oblong  or  cylindra- 


TORTULACE^E.]  265  [Barbula. 

ceous,  very  slightly  curved,  leptodermous,  glossy  brown ;  calyptra 
subulate,  prolonged  below  the  lid,  annulus  indistinct ;  lid  purple,  subu- 
late, nearly  as  long  as  caps.,  peristome  bright  red,  long,  fragile,  on  a 
very  narrow  basal  membrane,  many  times  twisted  ;  spores  minute, 
smooth. 

Male   plant   more   branched,    infl.    terminal,   bracts  from    a    broad 
concave  base,  narrowly  lane.,  very  faintly  nerved. 
HAD. — Wet  clay  and  sandy  banks  and  walls  ;  common.     Fr.  10 — i. 
Var.  /3.  brevicaulis  (Schwaeg.) 

Stem  short  simple ;  leaves  crowded,  patent,  subundulate  at  margin  ; 
caps,  shorter  as  also  the  lid  and  peristome. 

SYN. — Barbula  brevicaulis  SCHWAEG.  Suppl.  I,  P.  I,  126,  t.  32.     BRID.  Mant.  92 ;  Bry.  univ.  i, 

551.     SCHULTZ.  Recens.  210,  t.  33,  f.  20. 
B.  fallax  var.  brevicaulis  SCHIMP.— C.  MUELL.— WILSON,  &c. 

HAB. — Wet  places.     Hastings  (Bovnv)  \ 
Var.  y.  brevifolia  (Sm.)  Schultz. 

More  densely  tufted,  slender,  fastigiate  branched  ;  leaves  shorter,  ovato- 
lanc.,  patulous  from  the  middle,  subrecurved ;  caps,  small,  peristome  shorter. 

SYN.— Tortula  brevifolia  SM.  Fl.  brit.  1259.     BRID.  Sp.  Muse.  I,  254. 
Barbula  brevifolia  BRID.  Mant.  92  ;  Bry.  univ.  i,  555. 

B.  fallax  var.  brevifolia  SCHULTZ  Recens.  212,  t.  33,  f.  21,  B.      SCHIMP. — C.  MUELL. — 
WILSON,  &c. 

HAB. — Cheddar,   Somerset   (Boswell,    1873) !    Bearley,  Warwick    (Bagnall)  \  \ 
Buxton  and  Miller's  dale  (Holt,  1883) !  ! 

This  common  moss  varies  from  %  to  2  inches  in  height,  and  is  always  of 
a  brown  or  rusty  tint ;  a  tuft  of  it  in  fruit  has  a  very  pretty  appearance  from 
the  neat  capsules  with  long  acutely  pointed  lids. 


6.   BARBULA    REFLEXA   End. 

Dioicous  ;  leaves  rufescent,  ovato-lanceolate,  incumbent  when  dry, 
strongly  recurved  when  wet,  acutely  carinate,  margin  reflexed  below, 
nerve  vanishing.  Caps,  cylindric.  (T.  XXXIX,  E.) 

SYN. — Tortula  reflexa  BRID.  Sp.  muse.  I,  255  (1806).     BRAITHW.  in  SEEM.  Journ.  Bot.  1871,  p. 

293,  t.  120,  f.  2. 

Barbula  reflexa  BRID.  Mant.  muse.  93  (1819). 
B.  fallax  var.  y.  reflexa  BRID.  Bry.  univ.  i,  558  (1826). 

Schistidium  ?  recurvifolium  WILS.  MSS.      SPRUCE  in  Ann.  Mag.  n.  h.  2  ser.  iii,  491  (1849). 
Grimmia  recurvifolia  WILS.  MSS. 

Tortula  fallax  var.  8.  recurvifolia  WILS.  Bry.  brit.  124  (1855). 
Barbula  recurvifolia  SCHIMP.  Coroll.  Bry.  eur.  141  (1855),  Synops    170  (1860),  2  ed.  206. 

MITT.   Journ.    Linn.  soc.  i,    Suppl.  34  p.p.    (1859).      MILDE   Bry.  siles.    121   (1869). 

JURATZ.  Laubm.  oesterr.-ung.  112  (1882).     LESQ.  JAMES  Mosses  N.  Amer.  122  (1884). 
Tortula   recurvifolia  BERK.    Handb.    br.  m.  258    (1863).     LINDB.    De    Tort.    250  (1864). 

DE  NOT.  Epil.bri.  ital.  555  (1869). 


TORTULACE^.]  266  [Barbula. 

Dioicous ;  plants  tall,  slender,  crowded  into  lax  rufo-fuscous  tufts. 
Leaves  when  dry  laxly  incumbent  and  slightly  twisted,  when  wet 
suddenly  falcato-recurved,  subtrifarious,  from  an  oblong  base,  lanceolate, 
shorter  and  broader  than  those  of  B.  fallax,  more  solid,  acutely  carinate, 
with  stronger  longitudinal  folds  at  base,  strongly  papillose  on  both 
sides,  nerve  fuscous,  of  equal  width,  vanishing  in  the  apex,  margin  erect, 
plane  above,  resupinato-reflexed  towards  base,  one  wing  reflexed  almost 
from  the  middle ;  cells  as  in  last,  lowest  basal  rather  larger,  quadrate 
and  rectangular,  pachydermous,  upper  rounded.  Calyptra  very  narrow, 
prolonged  to  £  of  capsule,  subulate;  caps,  erect,  elongate,  cylindraceous, 
regular,  rufo-fuscous ;  lid  with  a  subulate  beak ;  ann.  none  ;  peristome 
of  B.fallax.  Male  plant  more  slender. 
HAB. — Among  earth  on  limestone  rocks  and  walls  ;  not  common. 

Above  Airlie  Castle,  Forfar  (Drummond)  !  Buxton  and  Middleton,  Derby  (Wilson)  \  \ 
Ingleboro'  and  Giggleswick  Scar.  (Baker  1855)  ! !  Mucross,  Killarney  (Schimper  and 
Wilson  1865).  Barrowfield  and  Whitbarrow  (Barnes  1867).  Litton  and  Malham 
(Hunt  1867) ! !  Ben  Lawers  (Hunt).  Hayle  sands  (Curnow  1871)  ! !  Via  Gellia, 
Matlock  (Holmes  1875).  Miller's  dale,  Castleton  and  Buxton  (Holt  1883)  ! ! 

Var.  ft.  robusta  Braithw. 

Stems  tall,  3-5  in.  high,  in  lax  incoherent  tufts ;  leaves  more  dense, 
broader  and  thicker. 

HAB. — Limestone  rocks  at  Ben  Bulben,  Sligo  (Moore)  ! ! 

The  slender  form  of  B.  veflexa  and  the  carinate  strongly  recurved  leaves, 
suddenly  pointed  and  never  acuminate,  at  once  separates  it  from  B.  fallax. 
The  fruit  is  extremely  rare,  and  the  drawing  of  it  is  copied  from  Schimper's 
figures ;  Mr.  Holt  finds  not  unfrequently  in  the  Matlock  districts  a  slender 
fruiting  form  of  B.  fallax  growing  intermixed  with  B.  veflexa,  for  which  it 
may  be  readily  mistaken. 

The  Var.  /3.  was  at  first  referred  by  Mr.  Mitten  to  B.  gigantea  (Geheebia 
catavvactavum  SCHIMP.)  but  that  species  has  much  longer  leaves  with  very 
different  areolation.  In  his  Synopsis,  2  ed.  Schimper  records  the  latter  from 
Scotland,  but  no  British  specimen  exists  in  his  herbarium,  and  it  is  therefore 
probably  only  an  erroneous  repetition  of  the  Irish  record. 


7.  BARBULA  SPADICEA.    Mitt. 

Dioicous  ;  lurid  green,  laxly  tufted.  Leaves  patent  from  the  base, 
elongate-lanceolate,  nerved  to  the  apex,  margin  recurved  below,  cells 
incrassate  and  rounded  from  the  base.  Caps,  cylindric,  lid  shortly 
rostrate.  (T.  XL,  A.) 

Svx.—Didymodon  rigidulus  BRID.  Muse.  rec.  II,  P.  I,  116  (1798),  Sp.  muse.  I,  160  (1806), 
Mant.  zoo  (1819),  Bry.  univ.  i,  514  (1826).  SWARTZ  Muse.  suec.  38  (1799).  ROTH  Fl. 
germ,  iii,  P.  I,  198  (1800).  WEB.  MOHR  Bot.  Tasch.  59  (1807).  SCHKUHR  Deutsch.  kr. 
gew.  P.  II,  68,  t.  30  (1810).  SCHWAEG.  Suppl.  I,  P.  I,  116  (1811).  HUEBEN.  Muse, 
germ.  286  (1833). 

Bryum  rigidulum  DICKS.  PI.  crypt,  fasc.  iv,  12  (1801). 


TORTULACE^.]  267  [Barbula. 

Trichostomum  rigidulum  (non  HEDW.)  SM.  Fl.  brit.  1238  (1804),  Eng-  Bot-  t.  2178.  TURN. 

Muse.  hib.  34  (1804).      BR.  SCHIMP.  Bry.  eur.  fasc.  18-20,  p.  10,  t.  7  (1843).  C.  MUELL. 

Synops.  i,  570  (1849).     WILS.  Bry.  brit.  114,  t.  20  (1855).     SCHIMP.  Synops.  148  (1860). 

HUSN.  Mouss.  nord-ouest  73  (1873),  Muse.  gall.  85,  t.  24  (1885). 
Barbula  spadicea  MITT,  in  SEEM.  Journ.  Bot.  1867,  p.  326. 
Barbula  insidiosa  JUR.   MILDE  Hedwigia   1869,  p.  97.      MILDE    Bry.  siles.    120    (1869). 

JURATZ.  Laubm.  oesterr.-ung.  in  (1882). 
Barbula  rigidula  SCHIMP.  Synops.  2  ed.  206  (1876). 

Tortula  spadicea  BRAITHW.  in  SEEM.  Journ.  Bot.  1871,  p.  293,  t.  119,  f.  6.  HOBK.  Syn. 
br.  m.  69  (1873). 

Dioicous  ;  resembling  B.fallax,  but  more  robust,  in  looser  thicker 
tufts,  dull  brownish-green  above,  fuscous  below.  Stems  i — 2  in.  high, 
simple  or  branched  ;  leaves  when  dry  incurved  and  imbricated,  when 
wet  patent  from  the  base,  spreading  and  recurved,  from  a  broadly  ovate 
base,  elongato-lanceoiate,  channelled,  margin  recurved  in  the  lower 
half,  the  folds  more  distinct,  nerve  strong,  distinct  to  the  apex  ;  cells 
incrassate  and  rounded-quadrate  from  the  base,  only  the  lowest  elongate- 
oval,  obscure  above,  papillose.  Perich.  bracts  lanceolate,  recurved, 
from  a  longish  lax-celled  base,  seta  red,  caps,  erect,  cylindric,  slightly 
curved,  castaneous  with  a  red  mouth,  annulus  of  3 — 5  rows  of  small 
cells,  lid  shortly  rostrate,  nearly  half  length  of  caps.,  peristome  short, 
teeth  red  on  a  very  short  orange  basal  membrane,  scarcely  twisted.  Male 
plant  more  slender,  infl.  terminal,  bracts  broad,  suddenly  acuminate. 

HAB. — Damp  walls,  earth  covered  rocks  and  sandy  banks  of  rivers  ;  not 
uncommon.     Fr.  9 — n. 

Forfar  (Croall  1852)!!  Sheddon  Clough,  Burnley  (Nowell)  \ !  Buxton  (Wilson  1863)!! 
Bolton  Abbey  (Hunt  1868)  ! !  Haselden  gill  (Nowell  1866).  Dent  (Barnes  1872)  ! ! 
Dovedale  (Holmes  1875)!!  Castleton  (Holt  1885)!!  Glen  Prosen  (Fergusson  1868)!  ! 
Crathie  (Sim  1872)  !  Belfast  (Stewart  1877).  Newcastle,  Co.  Down,  Fairhead,  Antrim 
(Rev.  H.  W.  Lett  1884)  ' '  Eskdale,  Yorks.  (Boswell  1878).  Bearley,  Warwick 
(B agnail). 

Readily  known  from  B.  rigidula  by  the  broader-pointed  leaves,  with  thick 
nerve  vanishing  just  below  apex,  and  very  different  basal  areolation,  and 
from  B.  fallax  by  the  longer  leaves  with  opake  rather  obtuse  points  and  short 
non-spiral  peristome. 

8.  BAKBULA  RIGIDULA  (Hedw.)  Mitt. 

Dioicous ;  densely  tufted,  dingy  green.  Leaves  subrecurved,  longly 
lanceolate  from  an  erect  base,  nerve  ending  in  the  thick  obscure  point, 
margin  revolute  below,  basal  cells  narrowly  rectangular.  Caps,  oval- 
oblong,  lid  obliquely  beaked.  (T.  XL,  B.) 

SYN.—  Muscus  trichodes  parvus,  foliis  musci  vulgaris,    capitulis   longis  acutis    DOODY.     RAY 

Synops.  st.  br.  243  (1690). 
Muscus  Adiantum  aureum  dictus  assurgens,  foliolis  tenuissimis,  capitulis  parvis  erectis  in 

oblongis  pedicellis  RAY  Syn.  2  ed.  31  (1696). 
Bryum  perangustis  foliis  et    cauliculis,  foliis  crebrioribus    et   circa   extremitates    magis 

conge stis,  capitulis  erectis,  ad  summitatem  magis  egredientibus  DILL.  Cat.  Giss.  225  (1719). 

RAY  Syn.  3  ed.  99  (1724). 


ToRTULACEjE.]  268  [Barbula. 

Bryum  tenue  imberbe  et  pallidum,  foliis  crebrioribus.     DILL.   Hist.  muse.  382,  t.  48,  f.  46 

(1741)  et  Herb. 
Didymodon  rigidulus  HEDW.   Muse.  fr.  iii,  8,  t.  4  (1792).  Sp.  muse.   104.     HOOK.  TAYL. 

Muse.  brit.  67,  t.  20  (1818).     HOOK.  Fl.  scot.  P.  II,  135  (1821). 
Desmatodon  rupestris  FUNCK  in  BRID.  Bry.  univ.  i,  822,  p.p.  (1827). 
Trichostomum  rigidulum  var.  (3.  densutn  BRUCH  SCH.  Bry.  eur.  fasc.  18-20,  p.   10,  t.    7 

(1843).     WILS.  Bry.  brit.  114  (1855).     SCHIMP.  Synops.  149  (1860). 
Trichostomum  rigidulum  C.  MUELL.     Synops.  i,  570  (1849). 
Trichostomum  neglecium  WILS.  MSS. 
Tortula  rigidula  LINDB.  de  Tort.  249  (1864).     BRAITHW.  in  SEEM.  Journ.  Bot.  1871,  p. 

293,  t.  119,  f.  5.     HOBK.  Syn.  br.  m.  69  (1873). 

Barbula  rigidula  MITT,  in  SEEM.  Journ.  Bot.  1867,  p.  326.  MILDE  Bry.  siles.  118  (1869). 
SCHIMP.  Synops.  2  ed.  206  p.p.  (1876).  JURATZ.  Laubm.  oesterr.-ung.  no  (1882). 
LESQ.  JAMES  Mosses  N.  Amer.  123  (1884). 

Dioicous ;  densely  tufted,  subpulvinate,  fuscescent  or  dirty  green. 
Leaves  from  an  erect  base,  appressed  to  stem,  patent  and  subrecurved, 
rigid,  when  dry  somewhat  incurved  and  contorted,  longly  lanceolate, 
carinate,  recurved  in  upper  margin,  revolute  below,  nearly  smooth, 
basal  areolation  pellucid,  narrowly  rectangular,  upper  distinct,  minutely 
quadrate,  nerve  brownish,  continued  with  lamina  into  a  thick  round, 
rather  obtuse,  obscure  point.  Perich.  bracts  resembling  the  upper 
leaves  but  more  acuminate ;  caps,  on  a  red  seta,  oval-oblong,  erect, 
straight  or  a  little  curved,  brown,  glossy  ;  annulus  narrow  of  3  rows  of 
small  cells,  lid  obliquely  beaked,  half  length  of  capsule,  teeth  on  a 
narrow  basal  membrane,  the  legs  free  or  partly  conjoined,  obliquate  or 
subcontorted.  Male  plant  more  slender. 
HAB. — Damp  rocks  and  shady  walls  ;  not  uncommon.  Fr.  7 — 9. 

Castle  Howard  (Spruce  1884)  !  Blackdown  and  Hurstpierpoint  (Mitten  1847)  !  Cliviger 
(Novell)  ! !  Buxton  and  Borrowdale  (Wilson  1864)!!  Castleton  (Holt  1883)!! 
Plymouth  and  Taunton  (Holmes  1868)  !  Whitbarrow  and  Syergh  Fell  (Barnes  1867) !  ! 
Callander  and  Arrochar  (Hunt  1868)  ! !  Scalby  Mills  (Spruce  1843)  !  Banchory  and 
Crathie  (Sim  1872)  !  Park  Lane,  Broughton  (Wild  1879).  Wychewood,  Oxon 
(Boswcll  1879)  ! !  Loch  Maree  (Boswell  1875)  !  !  Brandon  Mtns.  (Moore).  Sleive 
Gallion,  Derry  (Stewart  1876)  !  !  Wetherby  and  Boston  Spa,  Yorks.  (Wesley  1879)  ! ! 

More  compact  than  the  last  species,  and  growing  in  small  tufts,  never  in 
wide-spreading  sheets.  On  dry  walls  it  is  very  short  and  compact,  and  may 
be  taken  for  B.  fallax,  but  the  basal  areolation  will  always  distinguish  it. 
The  older  synonymy  of  this  species  and  the  last  is  so  confused  that  it  is  not 
possible  to  separate  them. 

9.  BARBULA  ACUTA  End. 

Dioicous  ;  caespitose.  Leaves  erecto-patent,  ovate,  lanceolato-acu- 
minate,  margins  recurved,  nerve  excurrent,  perich.  long,  flexuously 
acuminate.  Caps,  erect,  oblong,  exannulate,  lid  subulate.  (T.  XL,  C.) 

SYN. — Tortula  acuta  BRID.  Sp.  muse.  I,  265  (1806). 

Barbula  acuta  BRID.  Mant.  muse.  96  (1819),  Bry.  univ.  i,  554  (1826). 
Barbula  gracilis  SCHWAEG.  Suppl.  I,  P.  I,  125,  t.  34  (1811).     SCHULTZ  Recens.  Barb.  198, 
1.32,  f.  3  (1823).     BRID.  Bry.  univ.  i,  536  (1826).     BR.  SCH.  Bry.  eur.  fasc.  13-15,  p.  22, 


ToRTULACE.fi.]  269  [Barbula. 

t.  8  (1842).  HUEBEN.  Muse.  germ.  329  (1833).  RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  106 
(1848).  C.  MUELL.  Synops.  i,  609  (1849).  SCHIMP.  Synops.  171  (1860),  2  ed.  210. 
MILDE  Bry.  siles.  117  (1869).  HUSN.  Mouss.  nord-ouest  82  (1873),  Muse.  gall.  106,  t. 
29  (1886).  JURATZ.  Laubm.  oesterr.-ung.  114  (1882).  LESQ.  JAMES  Mosses  N.  Amer. 
127  (1884). 

Tortula  gracilis  SCHLEICH.  PL  cr.  Helv.  (1807).  HOOK.  GREV.  in  BREWST.  Ed.  Journ.  i, 
300  (1824).  DE  NOT.  Syll.  179  (1838),  Muse.  ital.  I,  57,  t.  28  (1862),  Epil.  bri.  ital.  552 
(1869).  WILS.  Bry.  brit.  123,  t.  32  (1855).  LINDB.  de  Tort.  249  (1864). 

Dioicous ;  in  rather  dense,  low  tufts,  olivaceous  green  or  fuscescent. 
Stem  simple  or  slightly  branched,  rather  rigid.  Leaves  straight,  erecto- 
patent,  when  dry  laxly  imbricated,  smooth,  concave,  from  an  ovate  base, 
lanceolate,  cuspidate  with  the  stout  fuscous  excurrent  nerve,  margin 
revolute  below,  areolation  minute,  rectang.  at  base,  roundish  above. 
Perich.  bracts  broader,  the  nerve  prolonged  into  a  long  flexuose  arista. 
Caps,  on  a  rigid  red  seta,  erect  or  subincurved,  brown,  small,  ovate- 
oblong,  with  alongish  attenuated  lid ;  ann.  none,  peristome  short,  orange- 
red,  slightly  contorted.  Male  infl.  gemmiform,  bracts  ovate,  acuminate. 
HAB. — Limestone  walls  and  sandy  ground,  rare. 

Durdham  Downs,  Bristol,  ster.  (Thwaites  1843) !     St.  Helier,  Jersey  (Cardot  1885) ! ! 

Known  at  once  by  its  short,  aristate  leaves,  and  perhaps  overlooked 
from  its  small  size  and  sterile  condition  ;  it  is  quite  probable  it  will  be  found 
in  Cornwall.  Mr.  Thwaites's  specimen  is  very  dwarf,  but  it  corresponds  in 
leaf-structure  with  the  true  plant. 


10.  BARBULA  CYLINDRICA  (Tayl.)  Schimp. 

Dioicous  ;  laxly  tufted.  Leaves  lanceolate-subulate,  patent,  nerved 
to  apex,  margin  recurved  below,  plane  above,  cells  quadrate  at  base, 
obscure  above.  Caps,  erect,  elliptico-cylindric,  lid  conic  attenuated. 
(T.  XL,  D.) 

Svv.—Zygotrichia  cylindrica  TAYL.  in  MACK.  FL  hib.  P.  2,  26  (1836). 

Tortula  insulana  DeNoT.  in  Mem.  ace.  lorin.  xl,32o  (1838),  Syllab.  180  (1838).  BRAITHW. 

in  Journ.  Bot.  1871,  p.  328.     HOBK.  Syn.  br.  m.  68  (1873). 
Barbula  vinealis   Var.  flaccida  BR.   SCH.  Bry.  eur.  fasc.   13-15,  p.  *4  (1842).      SCHIMP. 

Synops.  171  (1860).     JURATZ.  Laubtn.  oesterr.-ung.  114  (1882). 
Tortula  vinealis  WILS.  Bry.  br.  124,  t.  42  (1855). 
Tortula  cylindrica  LINDB.  Bot.  Not.  1865,  p.  76. 
Barbula  cylindrica  SCHIMP.  Synops.  2  ed.  208  (1876).     LESQ.  JAMES  Mosses  N.  Amer. 

125  (1884).     HUSN.  Muse.  Gall.  106,  t.  29  (1886). 
Barbula  vinealis  Var.  luxuriant  JURATZ.  in  litt. 
Barbula  insulana  HUSN.  Mouss.  nord-ouest  81  (1873). 

Dioicous;  in  lax  fuscescent  tufts,  plants  erect  and  decumbent, 
more  or  less  flexuose,  slender  I — i  in.  high.  Lower  leaves  more  lax,  longly 
lanceolate,  upper  densely  crowded,  from  a  longish  ovate  erect  base, 
narrowly  lanceolate-subulate,  carinate,  all  patent  and  patulous  when 
moist,  subrecurved  and  arching  upward,  subcirrate  when  dry,  at  base 


TORTULACE^E.]  270  [Barbula. 

very  concave  and  narrowly  recurved  at  margin,  thence  with  the  margin 
erect  or  with  one  wing  recurved,  verruculose  to  the  base,  nerve  of  equal 
thickness,  vanishing  in  the  apex  ;  cells  at  base  minutely  quadrate  and 
rectangular,  above  very  small  and  indistinct.  Perich.  bracts  similar, 
but  with  longer  concave  base  and  thinner  cells.  Caps,  on  a  long  slender 
purple  seta,  elliptico-cylindric,  pachydermous,  rufous-brown,  when  dry 
and  empty,  exactly  cylindric,  slightly  arcuate  ;  lid  conic,  short  beaked, 
a  little  incurved,  concolorous  with  capsule,  annulus  of  three  rows  of 
cells,  peristome  contorted,  pale  red,  finally  white,  on  a  shortly  papillose 
narrow  basal  membrane. 
HAB.— On  walls,  especially  in  limestone  districts.  Fr.  4 — 5. 

Sussex,  Lancashire  and  Cheshire.  Deepdale  and  Studley,  Yorks.  (Baker  1856)  !  Bolton 
Abbey  (Hunt  1867) !  !  Wyndcliff,  Aldrington  beach  and  Cuckfield  (Davies  1866)  !  ! 
Levens  (Barnes  1868).  Den  of  Airlie  and  Auchinblae  (Hunt  1869)  !  !  Mucruss 
(Schimper  1865).  Kilroot,  Antrim  (Stewart  1874).  Plymouth  (Holmes  1868)  !  ! 

Much  resembling  B.  fallax  in  areolation,  but  known  at  once  by  the  much 
longer  and  less  recurved  leaves,  with  smaller  less  incrassate  cells  ;  it  must 
stand  as  the  type  of  the  species,  being  more  highly  developed  in  all  its  parts 
than  B.  vinealis. 

VAR.  ft.  vinealis  (Brid.) 

Plants  shorter,  rufo-ferruginous  ;  leaves  shorter.  Caps,  ovate-oblong 
with  a  shorter  lid. 

SYN. — Barbula  vinealis  BRID.  Bry.  univ.  i,  830  (1827).  Bry.  eur.  fasc.  13-15,  p.  24,  t.  10. 
RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  107.  C.  MUELL.  Synops.  i,  617.  MITT.  Journ.  Linn, 
soc.  i,  Suppl.  33.  SCHIMP.  Synops.  170,  2  ed.  209.  HUSN.  Mouss.  nord-ouest  81,  Muse, 
gall.  105,  t.  29.  MILDE  Bry.  siles.  118.  JURATZ.  Laubm.  oesterr.-ung.  113.  LESQ. 
JAMES  Mosses  N.  Amer.  124. 

Barbula  fallax  c.  vinealis  HUEB.  Muse,  germ,  327. 

Tortula  fallax  y.  vinealis  DE  NOT.  Syllab.  180.     Mem.  ace.  Torin.  xl,  319. 

Tortula  vinealis  SPRUCE  in  Lond.  J.  bot.  iv,   194,  et  Ann.  mag.  n.  h.  2  ser.  iii,  378.     DE 

NOT.  Muse.  ital.  I,  60,  t.  30.     Epil.  bri.  ital.  554.     BERK.  Handb.  Br.  m.  257.     LINDB. 

de  Tort.  249 ;  Bot.  Not.  1865,  p.  77.     HOBK.  Syn.  br.  m.  68. 

HAB. — On  walls  ;  not  uncommon. 

Headington  and  Botley,  Oxon  (Boswell  1863)  !  !  Patcham,  Sussex  (Davies  1868). 
Shere  (Capron  1869).  Saltash  and  Plymouth  (Holmes  1867)  !  !  Dunton  Green  (Holmes). 

Resembling  B.  fallax,  but  the  obscure  small  upper  cells  distinguish  it ; 
these  in  fallax  being  pellucid,  rounded  and  much  incrassate. 


ii.  BARBULA  SINUOSA  (Wils.) 

Dioicous;  densely  caespitose.  Leaves  lineal-lane.,  cirrate,  nerved 
to  apex,  margin  sinuous  in  the  upper  part,  toothed  at  apex,  basal  cells 
rectangular.  (T.  XL,  E.) 

SYN. — Dicranella  sinuosa  WILS.  MSS. 
Trichostomum  sinuosum  Lindb. 


TORTULACE.E.J  271  [Barbula. 

Tortula  sinuosa  MITT.  Journ.  Bot.  1867,  p.  327.     BRAITHW.  in   SEEM.  Journ.  Bot.  1871, 

p.  294,  t.  120,  f.  6.     HOBK.  Syn.  br.  m.  73  (1873). 
Didymodon  sinuosus  SCHIMP.  Synops.  2  ed.  166  (1876). 
Barbula  cylindrica  var.  y.  sinuosa  Lindb.  Muse,  scand.  22  (1879). 

Dioicous  ;  in  small  dense  lurid  green  tufts,  fuscous  and  radiculose 
below.  Leaves  dense,  nearly  straight,  long  lineal-lane.,  from  an  oval 
concave  base,  acute,  carinate  above,  fragile,  cirrhate  and  twisted  when 
dry,  strongly  verrucoso-papillose,  nerved  to  apex,  margin  crenulate, 
more  or  less  sinuose  in  upper  half,  flat  or  lightly  recurved,  inciso-dentate 
at  apex;  cells  at  base  rectangular,  pellucid,  upper  rounded  quadrate, 
obscure.  Perigynial  bracts  narrower,  paler. 

HAS. — On  old  walls,  wet  stones,  and  about  tree  roots,  in  calcareous  districts. 

Bangor  (Wilson  1863)  ! !  Woolsonbury  hill  (Mitten)  \  \  Arundel  and  Wiston  (Davics 
1865) !  !  Plymouth  and  Laira  Bridge  (Holmes  1868)  ! !  Cheedale  (Holmes  1875). 
Phoenix  Park,  Dublin  (Hutton  1865).  Witney  and  Banbury  (Boswell  1878)!  !  Monk's 
dale,  Miller's  dale  and  Monsal  dale  (Holt  1883)  !!  Buckingham  (Holmes').  Helmsley 
(Wesley  1877)  ! !  Dunton  Green,  Kent  (Holmes). 

I  have  retained  this  as  a  species,  although  Juratzka,  Lindberg,  and 
others,  regard  it  as  only  a  variety  of  the  last.  The  points  of  difference  are 
the  narrower  longer  fragile  leaves,  with  the  margin  sinuous  above,  denticulate 
at  apex,  and  recurved  towards  base. 


12.  BARBULA  HORNSCHUCHII  Schultz. 

Dioicous ;  laxly  caespitose,  slender.  Leaves  broadly  lane.,  very 
acute,  nearly  smooth,  nerve  stout,  excurrent,  margin  revolute.  Caps, 
elongate  ovate,  lid  rostrate.  (T.  XLI,  A.) 

SYN. — Barbula  revoluta   (non  BRID.)    WEB.  MOHR  Bot.  Tasch.   210    (1807).      SCHULTZ  Fl. 
starg.  Suppl.  69  (1819). 

Tortula  revoluta  (non  SCHRAD.)  HOOK.  TAYL.  Muse.  br.  33,  t.  12  (1818). 

Barbula  Hornschuchiana   SCHULTZ   Recens.  Barb,  et  Syntr.  217,  t.  33,  f.  25  (1823).     BR. 

SCHIMP.  Bry.  eur.  fasc.   13-15,  p.  28,   t.   10   (1842),     RABENH.  Deutsch.  kr.   fl.  ii,  S.  3, 

108   (1848).      C.   MUELL.    Synops.   i,    608  (1849).      BERTOL.   Fl.  ital.  cr.  208   (1858). 

SCHIMP.  Synops.  173  (1860),  2  ed.  212.     MILDE  Bry.  siles.  116  (1869).     JURATZ.  Laubm. 

oesterr.-ung.  116  (1882).      HUSN.  Mouss.  nord-ouest  82  (1873),  Muse.  gall.  107,  t.  30 

(1886). 

B.  revoluta  var.  ft.  Hornschuchiana  BRID.  Bry.  univ.  i,  572  (1826). 
T.  revoluti  var.  (3.  Hornschuchiana  DE  NOT.  in  Mem.  ace.  Torin.  xl,  315  (1838). 
Tortula  Hornschuchiana  DE  NOT.  Syllab.  179  (1838),  Muse.  ital.  I,  55,  t.  27  (1862),  Epil. 

bri.  ital.  552  (1869).     WILS.  Bry.  brit.  127,  t.  43    (1885).     HARTM.  Skand.  fl.  8  ed.  393 

(1861).     BERK.  Handb.  br.  m.  256  (1863).     LINDB.  de  Tort.  248  (1864).      HOBK.    Syn. 

br.  m.  68  (1873). 

Dioicous ;  slender,  £in.  high,  in  lax  dull  green  patches  on  the 
ground,  stems  dichotomous,  fastigiate  branched.  Leaves  erecto-patent, 
when  dry  incurved  and  often  spirally  imbricated,  lanceolate,  concavo- 
carinate,  almost  all  the  margin  subrevolute,  obsoletely  papillose, 
mucronate  with  the  excurrent  nerve ;  cells  at  base  rectangular,  in  the 


TORTULACE^.J  272  [Barbula. 

middle  roundish-quadrate,  at  apex  elongated.  Perich.  bracts  elongate- 
oblong,  longly  cuspidate,  erect,  sheathing,  with  plane  margins,  the 
nerve  longly  excurrent ;  seta  red  below,  yellow  above,  caps,  erect,  from 
ovate  narrowly  oblong,  subincurved,  brown ;  lid  red,  long-beaked,  ann. 
narrow,  teeth  purple,  on  a  very  narrow  membrane,  2—3  times  twisted. 
Male  plant  smaller,  infl.  gemmiform,  bracts  ovato-lanc.,  the  nerve 
obsolete. 
HAB. — On  the  ground  and  walls.  Fr.  4 — 5. 

Beaumaris  and  Aberffraw  (Wilson  1830)  !  !  Newton  Viaduct  (Wilson  1848)  !  Aldrington 
beach,  Clayton  and  Balcombe  (Mitten) !  Henfield  and  Tunbridge  wells  (Borrer  1826)  ! 
Levens  (Barnes  1868)  !  Coneysthorpe  and  Welburn,  Yorks.  (Spruce  1839)  !  Winwick 
quarry  (Hunt).  Noke,  Oxford  (Boswell  1860) !  !  Burnley  (Duerden  1867)  ! !  Cromford, 
Derby  (Hunt  1863)  !  !  Guildford  and  Shere  (Capron  1868)  ! !  Staddon  heights  (Holmes 
1868) !  Kirriemuir  (Fergussnn).  Shirley,  Warwick  (Bagnall).  Carrickfergus  (Moore). 
Inchiquin  (Carroll).  Miller's  dale  (Holt  1886)  !  !  Hincksey,  Bucks.  (Boswell). 

13.  BARBULA  REVOLUTA   (Schrad.)  End. 

Dioicous ;  compactly  tufted.  Leaves  oblong-lanceolate,  obtuse, 
mucronate  with  the  thick  excurrent  nerve,  margin  strongly  revolute. 
Caps,  oval-oblong,  lid  subulate.  (T.  XLI,  B.) 

SYN. — Bryum  stellare  nitidum  pallidnm,  capsulis  tenuissimis  DILL.  Hist.  muse.  381,  t.  48,  f.  44, 
(1741)  et  Herb. 
Tortula  revolnta  SCHRAD.  Syst.  samml.  kr.  gew.  i,  n.  54  (1796),  et  in  UST,  neu  ann.  xiv. 

109   (1796).      BRID.   Sp.   muse.   I,  262   (1806).      GRAY  Nat.  arr.  br.  pi.  i,  724  (1821), 

HOOK.   Fl.   scot.    127    (1821).      HOOK.   GREV.  in  BREWST.  Edin.  J.  i,  290  p.p.  (1824). 

MACK.    Fl.  hibern.   P.   2,   25    (1836).      DE  NOT.   in   Mem.  ace.  Torin.  xl,  314  (1838), 

Syllab.   178;  Muse.  ital.  I,  54,  t.  26  (1862),  Epil.   bri.  ital.   550   (1869).     SPRUCE  Ann. 

mag.  n.  hist.  2  ser.  iii,  377  (1849).     WILS.   Bry.  br.  126,  t.  12  (1855).     BERK.  Handb. 

br.  m.  256  (1863).    LINDB.  De  Tort.  248  (1864).    HOBK.  Syn.  br.  m.  67  (1873). 
Barbula  revoluta  BRID.  in  SCHRAD.    Journ.  iii,   P.  II,  299   (1801),  Mant.  95   (1819),  Bry. 

univ.  i,  571   (1826).     WEB.   MOHR  Bot.   Tasch.  210  (1807).     SCHWAEG.  Suppl.  I,  P.  I, 

127,  t.  32  (1811).     ROEHL.  Deutsch.  fl.  iii,  79  (1813).     SCHULTZ  Recens.  Barb,  et  Synt. 

2I5'  *•  33'  f-  23  (J823).     BR.  SCHIMP.  Bry.  eur.  fasc.   13-15,  p.  27,   t.  14  (1842).     C. 

MUELL.  Synops.  i,  621  (1849).     SCHIMP.  Synops.    175  (1860),  2  ed.  213.     MILDE  Bry. 

siles.  114  (1869).     HUSN.  Mouss.   nord-ouest  82   (1873),   Muse.  gall.  108,  1.30(1886). 

JURATZ.  Laubm.  oesterr.-ung.  116  (1882). 

Dioicous;  in  compact  subpulvinate  tufts,  pale  yellow-green  or 
fuscescent.  Leaves  erecto-patent,  when  dry  imbricated  and  contorted, 
small  linear-ligulate,  rather  obtuse,  the  wings  revolute,  nerve  thick, 
excurrent  in  a  short  mucro ;  cells  at  base  rectangular,  above  roundish- 
quadrate,  incrassate,  papillose.  Perich.  bracts  elongated,  sheathing  ; 
seta  red  below,  straw-coloured  above,  caps  elliptic,  regular,  rufo- 
ferruginous,  calyptra  rather  large,  reaching  middle  of  caps.,  annulus 
simple,  lid  conico-subulate,  teeth  from  a  broader  basal  membrane,  very 
slender,  purple,  twice  twisted.  Male  as  in  B.  Hornschuchii. 

HAB. — Limestone  walls  and  the  plaster  of  brick  walls  ;  not  uncommon. 
Fr.  4.  Lindberg  states  that  this  species  is  not  found  in  Scandinavia,  but 
another  closely  allied  occurs  in  Sweden,  which  he  names  B.  obtusula,  more 
robust,  the  leaves  broader,  with  a  thicker  nerve  and  shorter  apiculus. 


TORTULACE^E.]  273  [Barbula. 

Sect.  4.  LEPTOPOGON  (Mitt.).  Plants  dwarf.  Leaves  yellowish 
green,  short,  rather  obtuse ;  perich.  bracts  diverse,  exserted,  convolute. 
Caps,  on  a  long  seta  ;  peristome  very  long,  contorted. 


14.   BARBTJLA  CONVOLUTA  Hedw. 

Dioicous  ;  csespitose,  very  slender.  Leaves  small,  erecto-patent, 
ovato-lanceolate,  the  margin  a  little  reflexed  below.  Perich.  bracts 
convolute,  sheathing.  Caps,  on  a  long  yellow  seta,  narrowly  oblong, 
lid  rostrate.  (T.  XLI,  C.) 

SYN. — Musctts  minimus  pallidus,  foliis  angustissimis  acutis,  corniculis  tenuissimis  RAY  Synops. 
2  ed.  30,  n.  9  (1696),  p.p. 

Bryum  setaceum  HUDS.  Fl.  angl.  409  (1762).     NECK.  Meth.  212  (1771).     LIGHTF.  Fl. 

scot,  ii,  729  (1777).     VILL.  PI.  Dauph.  iii,  880  (1786). 
Mnium  setaceum  (non  L.)   POLLICH  PI.  palat.  iii,  54   (1777).     EHRH.  Hann.  mag.  1780, 

P-  235- 

Barbula  sctacea    HEDW.    Fund.  II,  92  (1782),  Stirp.  cr.  i,  t.  32  (1787). 
Barbula  convoluta  HEDW.  Stirp.  cr.  i,  86,  t.  32  (1787),   Sp.  muse.  120  (1801).     TIMM  Fl. 

meg.  240  (1788).     BRID.  Muse.  rec.  II,  P.  I,  205  (1798),  Mant.  94  (1819),  Bry.  univ.  i, 

569  (1826).     ROEHL.  Moosg.  deutsch.  433  (1800),  Deutsch.  fl.  iii,  80  (1813).     SCHULTZ 

Fl.  Starg.  305  (1806),  Rec.  Barb.  et.  Syntr.   213,  t.  33,  f.  22  (1823).     WEB.  MOHR  Bot. 

Tasch.  212  (1807).     SCHWAEG.  Suppl.  I,  P.  I,  127  (1811).     VOIT  Muse.  herb.  96(1812). 

WAHLENB.  Fl.  lapp.  318  (1812).     MART.  Fl.  cr.  erl.  90  (1817).     FUNCK  Moost.  22,  t.  15 

(1821).     BR.  SCH.   Bry.  eur.  fasc.   13-15,  p.  29,  t.  16  (1842).     RABENH.  Deutsch.  kr.  fl. 

ii,  S.  3,  109  (1848).     C.  MUELL.  Synops.  i,  614  (1849).     BERTOL.  Fl.  ital.  cr.  208  (1858). 

SCHIMP.  Synops.  175  (1860),  2  ed.  214.     MILDE  Bry.  siles.  115   (1869).     HUSN.  Mouss. 

nord-ouest  83  (1873),  Muse.  gall.  108,  t.  30.  (1886).    JURATZ.  Laubm.  oesterr.-ung.  118 

(1882).     LESQ.  JAMES  Mosses  N.  Amer.  127  (1884). 
Bryum  convolutum  DICKS.  PI.  cr.  fasc.  II,  6  (1790).      RELH.  Fl.  cant.  Suppl.   9   (1793). 

WITH.  Bot.  arr.  Br.  Veg.  3  ed.  iii,  816  (1796).     ABBOT  Fl.  bedf.  37  (1798).     HULL  Br.  fl. 

P.  II,  254  (1799). 

Tortula  convoluta  SCHRAD.   Spic.   fl.   germ.  66   (1794).      SIBTH.  Fl.  Oxon.  285   (1794). 

SWARTZ  Muse.  suec.  41  (1799).     ROTH  Fl.  germ,  iii,  P.  I,  208  (1800).      SMITH  Fl.  brit. 

iii,  1253  (1804),  Eng.  Bot.  t.  2382.     TURN.  Muse.  hib.  49  (1804).     BRID.  Sp.  muse.  I,  261 

(1806).     HOOK.  TAYL.  Muse.  brit.  33,  t.  12  (1818).      GRAY  Nat.  arr.  br.  pi.  i,  725  (1821). 

HOOK  Fl.  scot.  128  (1821),  Br.  Fl.  ii,  44  (1833).     DE  NOT.  in  Mem.  ace.   Torin,  xl,   314 

(1838),  Syllab.  178,  Muse.  ital.  I,  53,  t.  25  (1862),  Epil.  bri.  ital.  551  (1869).     WILS.  Bry. 

br.  127,  t.  12  (1855).      LINDB.   De  Tort.  248  (1864).      HOBK.  Syn.  br.   m.  67  (1873). 

BERK.  Handb.  br.  m.  255  (1863). 
Streblotrichum  convolutum  P.  BEAUV.  Prodr.  89  (1805),  et  in  Mem.  Soc.  Linn.   Par.  i,  t. 

5,  f.  6  (1822). 

Dioicous  ;  flat,  densely  caespitose,  pale  yellow  green  above,  fuscous 
below.  Leaves  erecto-patent,  somewhat  recurved,  crisped  when  dry, 
lower  ovato-lanc.,  upper  narrowly  ligulato-lanc.,  rather  obtuse  or  some- 
times pointed,  margin  plane,  subrecurved  towards  base,  nerve  vanishing 
at  or  below  the  point ;  cells  at  base  pellucid,  elongate  rectangular, 
above  small  quadrate  and  obscure  with  chlorophyl,  finely  papillose. 
Perich.  bracts  closely  sheathing,  exserted,  inner  convolute,  obtuse  or 
shortly  apiculate,  yellowish,  nerveless  ;  caps,  on  a  long  slender  yellow 
seta,  narrowly  oblong,  incurved,  rufous  bay  coloured ;  annulus  rolling 
back,  lid  conico-subulate ;  per.  long,  purple,  closely  twisted  in  many 


274  [Barbula. 

convolutions.     Male  plant  more  slender,  infl.  gemmiform,  bracts  ovato- 
lanceolate. 

HAB. — Bare  places  among  short  grass  and  on  limestone  walls  ;  not 
uncommon.  Fr.  4 — 5. 

Var.  ft.  Sardoa  BY.  Sch. 

Tufts  very  dense,  taller  ;  leaves  longer,  somewhat  recurved,  dull  green, 
more  pointed  ;  caps,  elongated. 

SYN.— Barbula  convoluta  ft-  Sardoa  BR.  SCH.  Bry.  eur.  1.  c.     C.  MUELL.  Synops.  615. 
Tortula  convoluta  ft  Sardoa  WILS.  Bry.  brit.  128. 
Barbula  convoluta  var.  densa  MILDE  Bry.  siles.  116. 
Barbula  commutata  JURATZ.  Verb.  k.  k.  zool.-bot.  Ges.  in  Wien  1874,  p.  377.     LAUBM. 

oesterr.-ung.  119(1882). 
Trichostomum  undatum  SCHIMP.  Synops.  2  ed.  180. 

HAB. — Banks  in  limestone  districts. 

Luttrelstown,  Dublin  (Taylor).  Glendalough  (Palgrave  1866) !  !  Beddgelert  (Wilson 
1854)!!  Bangor  (Wilson  1863)!!  Lennox  Castle  (Me.  Kinlay)\  Seven  Churches, 
Wicklow  (Lindberg  1873)  !  !  Old  walls  at  Wytham,  Oxford  (Boswell,  1881)  ! ! 

Sect.  5.  HELICOPOGON  (Mitt.)  Leaves  obtuse,  deep  green,  the 
perichaetial  bracts  but  little  different ;  caps,  erect ;  peristome  elongated, 
contorted. 

15.  BAKBULA  UNGUICULATA  (Huds.)   Hedw. 

Dioicous  ;  laxly  caespitose.  Leaves  erecto-patent,  ovato-lanceolate, 
rather  obtuse,  mucronate  with  the  excurrent  nerve,  margin  revolute 
below,  upper  cells  opake.  Caps,  oblongo-cylindric.  (T.  XLI,  D.) 


SYN. — Muscus  trichoides  minor  vulgaris  facie,  foliis  capillaceis  MERR.  Pinax  n.  88  (1667).  RAY 

Synops.  2  ed.  App.  324  (1696). 

Bryum  angustis  viridibus  foliis,  capitulis  erectis  brevibus,  pediculis  insidentibus,  calyptra 
falcata  vel  avium  nnguiculas  referente  DILL.  Cat.  Giss.  225  (1719),  in  RAY  Syn.  3  ed. 
96  (1724). 

Bryum  unguiculatum  et  barbatum,  surculis  in  summitate  crassioribus  DILL.    Hist.  muse. 

383,  t.  48,  f.  47  (1741)  et  Herb. 

Bryum  unguiculatum  et  barbutum,  tenuius  et  stellatum  DILL.  op.  c.  384,  t.  48,  f.  48,  et  Herb. 
Bryum  unguiculatum  HUDS.  Fl.  angl.  410  (1762).      L.  Mant.  ii,  309  (1771).     SCHREB. 

Spic.  fl.  lips.  78  (1771).     WITH.  Bot.  arr.  brit.  veg.  ii,  262  (1776).     EHRH.  Hann.  Mag. 

1780,  p.  236.      RELH.    Fl.    cant.    Suppl.    10    (1793).      ABBOT   Fl.    bedf.    242    (1798). 

SWARTZ  Meth.  29  (1781). 
Barbula  unguiculata  HEDW.  Fund.  II,  92  (1782),  Stirp.  i,  59,  t.  23  (1787),   Sp.  muse.  118 

(1801).     BRID.  Muse.  rec.  ii,  P.  I,  118  (1798),  Mant.  94  (1819),  Bry.  univ.  i,  563   (1826). 

ROEHL.  Moosg.  deutsch.  415   (1800),   Deutsch.  fl.  iii,  79  (1813).     SCHULTZ   Fl.  starg. 

304  (1806),  Rec.  Barb,  et  Syntr.  204,  t.  32,  f.  12  (1823).     WEB.  MOHR  Bot.  Tasch.  208 

(1807).     SCHWAEG.  Suppl.  I,  P.  I,   123  (1811).    VOIT  Muse.  herb.  54  (1812).     MART. 

Fl.  cr.  erl.  89  (1817).     FUNCK  Moost.  22,  t.   15   (1821).      HUEBEN.  Muse.  germ.  323 

(1833).     BR.  SCHIMP.  Bry.  eur.  fasc.  13-15,  p.  19,  t.  5  &  6  (1842).     RABENH.  Deutsch. 

kr.  fl.  ii,  S.  3,  105  (1848).     C.   MUELL.  Synops.  i,  612  (1849).     SCHIMP.   Synops.   167 

(1860),  2  ed.  203.     MILDE  Bry.  siles.  121  (1869).     HUSN.   Mouss.  nord-ouest  80  (1873), 

Muse.  gall.  104,  t.  29  (1886).    JURATZ.  Laubm.  oesterr.-ung,   109  (1882).     LESQ.  JAMES 

Mosses  N.  Amer.  120  (1884). 
Mollia  unguiculata  SCHRANK  Bayers  fl.  ii,  457  (1789). 


TORTULACE^E.]  275  (Barbula. 

Bryum  mucronulatum  DICKS.  PI.   crypt.  Fasc.  Ill,  3  (1793).     HOFFM.  Deutsch.  fl.  ii,  44 


Bryum  linoides  DICKS,  op.  c.  8,  t.  8,  f.  3. 

Tortula  mucronulata  SWARTZ  Muse.  suec.  40  (1799).     SM.  Fl.  brit.  iii,  1250  (1804),  Eng. 

Bot.  t.  1299.     TURN.  Muse.  hib.  47  (1804). 
Tortula  unguiculata  ROTH  Fl.  germ,   iii,  P.   I,  206  (1800).      P.  BEAUV.  Prodr.  93  (1805), 

in  Mem.  soc.  Linn.  t.  6,  f.   i   (1822).     BRID.  Sp.  muse.  I,  258  (1806).     HOOK.  TAYL. 

Muse.  brit.  33,  t.  12  (1818).     HOOK.  Fl.  scot.  P.  2,  128  (1821).     GRAY  Nat.  arr.  br.  pi.  i, 

724  (1821).     HOOK.  GREV.  in  BREWST.  Ed.  J.  i,  294  (1824).     ARN.  in  Mem.  soc.  d'hist. 

nat.  Paris  ii,  286  (1825).     MACK.  Fl.  hib.  P.  2,  26  (1836).     DE  NOT.  Syllab.  177  (1838), 

ft~ 

(i 

m.  67  (1873). 


Muse.  ital.   I,  49,  t.  23   (1862),  Epil.   bri.  ital.  548   (1869).     WILS.   Bry.  brit.  21,  t.  12 
(1855).     BERK.  Handb.  br.  m.  258  (1863).    LINDB.  De  Tort.  241  (1864).    HOBK.  Syn.  br. 
m.  67  (1873). 
Tortula  humills  (non  HOOK.  GREV.)   TURN.  Muse.  hib.  45  (1804),  Eng.  bot.  t.  1663. 


Dioicous ;  in  broad  lax  tufts,  dull  yellow  green  above,  fuscescent 
below,  with  few  radicles.  Leaves  erecto-patent,  when  dry  appressed 
and  somewhat  twisted,  narrowly  ovato-  and  oblongo-lanceolate,  more 
or  less  obtuse,  mucronate  with  the  thick  yellowish  excurrent  nerve, 
margin  revolute  in  the  lower  half,  carinate  at  apex ;  cells  at  base  small 
rectangular  pellucid,  above  quadrate,  opake,  densely  papillose.  Perich. 
bracts  elongate,  subvaginant,  inner  narrower,  hyaline  to  apex,  nerve 
excurrent ;  caps,  on  a  purple  seta,  rufo-fuscous,  leptodermous, 
elongate-elliptic  or  subcylindric,  regular  or  slightly  incurved,  lid  conico- 
subulate,  ann.  none,  peristome  deep  red,  2 — 3  twisted.  Male  plant 
more  slender,  infl.  terminal  gemmaceous,  bracts  broadly  ovato- 
lanceolate. 

HAB. — Banks  and  hedge-rows  in  clay  soil ;  common.     Fr.  12-2. 
Var.  /3.  cuspidata  (Schultz). 

Stem  short,  leaves  linear-oblong,  narrower,  cuspidate  with  the  excurrent 
nerve,  nearly  straight. 

SYN. — Barbula  cuspidata  SCHULTZ  Suppl.  fl.  starg.  68.     Rec.  Barb.  t.  32,  f.  14  a. 
Barbula  lanceolata  HEDW.  Sp.  muse.  t.  26. 
Bryum  ericetorum  DICKS.  PI.  crypt.  Fasc.  II,  5  ? 
Tortula  ericetorum  SM.  Eng.  Bot.  t.  2495  ? 

HAB. — Gravelly  banks. 

Var.  y.  apiculata  (Hedw.). 

Leaves  recurvo-patulous,  the  apex  obtuse,  tipped  with  the  excurrent 
nerve. 

SYN. — Barbula  apiculata    HEDW.   Sp.  muse.  117,  t.  26,  f.   1-4.      SCHULTZ  Rec.  t.  33,  f.  17. 

BRID.  Mant.  94.    Bry.  univ.  i,  560. 

Tortula  apiculata  TURN.  Muse.  hib.  46.     Eng.  Bot.  t.  2494. 
Tortula  aristata  SM.  Fl.  brit.  1261.     Eng.  Bot.  t.  2393. 
Bryum  aristatum  DICKS.  Fasc.  IV,  12,  t.  ii,  f.  7. 
Barbula  aristata  BRID.  Mant.  92. 
Tortula  barbata  SM.  Eng.  Bot.  t.  2391.     Fl.  brit.  1260. 


TORTULACE^.J  276  [Barbula. 

HAB. — Walls  at  Croydon  (Dickson).     Dublin  (Stokes).    Plymouth  (Holmes) !  ! 
Dromore,  Down  (Rev.  C.  H.  Waddell)  \  !     Otford,  Kent  (Holmes). 

Var.  8.  microcarpa  (Schultz). 

More  slender ;  leaves  more  crowded,  shorter,  patenti-recurved,  caps, 
small,  oval,  lid  conico-subulate. 

SYN. — Barbula  microcarpa  SCHULTZ  Rec.  t.  33,  f.  18.     BRID.  Bry.  univ.  i,  561. 
HAB.— Baugh  Fell,  Yorks.  (West,  1879) !  ! 

Var.  e.  obtusifolia  (Schultz). 

More  robust ;    leaves  crowded,  shorter,  broader,   obtuse,    very   shortly 
mucronate  or  muticous ;  caps,  narrowed,  oblongo-cylindric. 
SYN.— Barbula  obtusifolia  BRID.  Mant.  go.     SCHULTZ  Rec.  t.  32,  f.  13. 
HAB.— Roadside  banks.     Miller's  dale  (Holt,  1882) !  ! 

Var.  $.  fastigiata  (Schultz). 

Taller,  repeatedly  fastigiate  branched  ;  leaves  broader,  softer,  subundu- 
late  at  margin. 

SYN.— Barbula  fastigiata  SCHULTZ  Rec.  t.  33,  f.  15.     BRID.  Bry.  univ.  i,  554. 
HAB.— Shore  of  L.  Neagh,  Ardmore,  Armagh  (Rev.  H.  W.  Lett  1885) ! ! 

A  plant  of  wide  distribution,  and  as  usual  with  such,  subject  to  consider- 
able variation  ;  it  may  however  be  generally  recognized  by  the  obtuse  apicu- 
late  leaves  with  recurved  margins,  and  thin-walled  oblong  capsule  without 
any  annulus.  In  its  very  slender  fragile  peristome  it  resembles  B.  fallax. 

1 6.  BARBULA  MUCRONATA  End. 

This  was  misplaced  under  Tovtulaai  p.  218,  its  most  natural  position  is 
here  next  to  B.  unguiculata,  and  indeed  it  clearly  forms  a  connecting  link 
between  that  species  and  Cindidottis. 


ADDENDUM  TO  TORTULA  §  ZYGOTRICHIA. 
TORTULA   SUBERECTA   Dvumm. 

Autoicous ;  stems  short,  nearly  simple.  Leaves  papillose,  ovato- 
lanceolate,  the  margin  revolute,  nerve  excurrent  in  a  subula.  Caps, 
cylindraceous,  oblique,  lid  conico-rostellate  ;  peristome  on  a  short  basal 
membrane.  (T.  XLI,  E.) 

Svti.—Tortula  suberecta  DRUMM.  Muse.  amer.  n.  145  (1828). 

Desmatodon  obliquus  BR.  SCHIMP.  Bry.  eur.  fasc.  18-20,  p.  10,  t.  7  (1843).  SCHIMP. 
Synops.  161  (1860),  2  ed.  187.  DE  NOT.  Epil.  bri.  ital.  575  (1869).  JURATZ.  Laubm. 
oesterr.-ung.  132  (1882).  LESQ.  JAMES  Mosses  N.  Amer.  115  (1884).  HUSN.  Muse. 
gall.  94,  t.  26  (1885). 

Trichostomum  obliquum  C.  MUELL.  Synops.  i,  594  (1849). 


TORTULACE.E.]  277  [Cinclidotus. 

Autoicous;  caespitose,  lurid  green,  stem  short,  almost  simple. 
Leaves  flaccid,  erecto-patent,  lower  ovate-oblong,  upper  broadly  ovato- 
lanceolate,  the  margin  revolute,  except  at  the  faintly  toothed  apex,  nerve 
excurrent  in  a  piliform  arista  ;  cells  at  base  rectangular,  hyaline,  above 
hexagonal,  chlorophyllose,  densely  papillose,  the  marginal  more  trans- 
parent and  forming  a  yellowish  border.  Caps,  on  a  slender  purple  seta, 
cylindraceous,  inclined  and  usually  curved,  fuscescent,  finally  reddish 
brown ;  annulus  simple,  lid  conico-rostellate  ;  peristome  a  short  pale 
basal  tube,  the  teeth  red,  fragile,  scabrous,  obliquate.  Male  infl.  at  base 
of  female,  bracts  i — 3,  thin,  aristate. 
HAB. — Wet  crevices  of  alpine  rocks.  Fr.  7 — 8. 

The  Rev.  J.  Fergusson  informs  me  that  this  species  certainly  occurs  in 
Scotland,  but  as  he  has  not  favoured  me  with  specimens,  I  have  made  the 
drawing  from  a  Norwegian  one. 

It  deviates  from  our  other  species  of  this  section  by  the  shortness  of  the 
tubular  base  of  peristome,  but  stands  next  to  another  Norwegian  species, 
T.  Lauren  (SCHULTZ),  and  also  comes  near  to  T.  (Desmatodon)  latifolia  (HEDW.) 
and  T.  systylia  (BR.  SCH.). 

Subf.  2.  CINCLIDOTE^E. — Tall  aquatic  mosses,  forming  black-green 
mats,  fasciculate-branched.  Leaves  solid,  strong-nerved.  Caps,  immersed, 
at  end  of  primary  shoots.  Per.  a  cancellated  basal  membrane,  with  filiform 
processes  cohering  at  base  by  trabeculae. 

CINCLIDOTUS.     P.  BEAUV. 

Prodr.  p.  28  (1805). 

Cladocarpous,  fixed  to  stones  and  floating  in  water.  Leaves  solid, 
strong-nerved,  bordered.  Fruit  terminating  the  primary  branches, 
immersed ;  calyptra  conico-cucullate ;  peristome  on  a  cancellated 
membrane,  of  16  teeth,  each  divided  into  2—3  slender  filiform  legs.  Der. 
/cty/cXtSwTos  latticed. 

I  have  preferred  this  name  to  the  older  one,  Sekra  of  Adanson,  as  apart 
from  its  barbarous  sound,  the  character  assigned  to  it  would  not  be  suffi- 
cient to  identify  it ;  the  Linnean  specific  name  also  is  in  relation  to  Fontinalis 
antipyretica,  with  which  the  present  has  no  affinity. 

CINCLIDOTUS  FONTINALOIDES  (Hed.)  P.   Beam. 

Dioicous;  in  olive  green  fasciculate  floating  tufts.  Leaves  elon- 
gate-lanceolate, patulous.  Caps,  immersed,  ovate-oblong ;  peristome 
filiform,  twisting  to  the  right.  (T.  XLI,  F.) 

SYN.— Fontinalis  minor,  foliis    triangularibus  minus   complicatis,  capitulis  in   summis  ramulis 
sessilibus  DILL,  in  RAY  Synops.  3  ed.  79  (1724). 


TORTULACE.E.]  278  [Cinclidotus. 

Fontinalis  triangularis  minor  carinata,  e  cymis  capsulifera  DILL.  Hist.  muse.  257,  t.  33,  f.  2 

(1741),  et  Herbar. 
Fontinalis  minor  L.  Sp.  pi.  1107  (1753).     HUDS.  Fl.  angl.  398  (1762).     WITH.  Bot.  arr.  br. 

veg.  ii,  692  (1776).      LIGHTF.  Fl.  scot,  ii,  695  (1777)-      WEBER  Sp.  fl.  goett.  35  (1778). 

HEDW.  Fund.  II,  96  (1781).      ROTH  Fl.  germ.  i,478  (1788).     ABBOT  Fl.  bedf.  231  (1798). 

HULL  Br.  fl.  P.  2,  275  (1799).     SM.  Eng.  Bot.  t.  557. 
Fontinalis  alpina  DICKS.  PI.  crypt,  fasc.  II,  2,  t.  4,  f.  i  (1790). 
Hypnum  fontinaloides  LAMARCK  Enc.  meth.  iii,  164  (1789). 
Trichostomum  fontinaloides  HEDW.   Stirp.  cr.  iii,  36,  t.  14  (1792),  Sp.  muse.   114.      BRID. 

Muse.  rec.  II,  P.  I,  133  (1798),  Sp.  Muse.  I,  243  (1806).     SWARTZ  Muse.  suec.  30  (1799). 

ROEHL.  Moosg.  deutsch.  277  (1800).      SM.  Fl.  brit.  1248  (1804).      TURN.  Muse.  hib.  41 

(1804).     WEB.  MOHR  Bot.  Tasch.  121  (1807).     SCHKUHR  Deutsch.  kr.  gew.  P.  II,  75,  t. 

34  (1810).     SCHWAEG.  Suppl.  I,  P.  I,  160  (1811). 
Cinclidotus  fontinaloides  P.  BEAUV.  Prodr.  52  (1805).     HOOK.  TAYL.  Muse.  brit.  29,  t.  n 

(1818).      FUNCK  Moost.  24,  t.  16   (1821).     BRID.  Bry.  univ.   i,  229  (1827).      HARTM. 

Skand.  fl.    GRAY  Nat.  arr.  br.  pi.  i,  722  (1821).     HOOK.  Fl.  Scot.  P.  2,  127  (1821),  Br.  fl. 

ii,  47  (1833).     HUEBEN.  Muse.  germ.  216  (1833).      MACK.  Fl.  hib.  P.  2,  27  (1836).     DE 

NOT.  Syll.  259  (1838),  Epil.  bri.  ital.  492  (1869).     BR.  SCH.  Bry.  eur.  fasc.  16,  Mon.  9, 

t.  2  (1842).     RABENH.   Deutsch.  kr.  fl.  ii,  8.3,  242  (1848).     WILS.  Bry.  brit.  139,  t.  n 

(1855).      SCHIMP.  Synops.  195  (1860),  2  ed.  236.      BERK.  Handb.  br.  m.  249,  t.  22, 

f.  2  (1863).      MILDE  Bry.  siles.  140  (1869).      HOBK.  Syn.  br.  ra.  74    (1873).      HUSN. 

Mouss.  nord-ouest  88  (1873),  Muse.  gall.  120,  t.  34(1886).     JURATZ.  Laubm.  oesterr.- 

ung.  147  (1882).     LESQ.  JAMES  Mosses  N.  Amer.  134  (1884). 
Trematodon  fontinaloides  ROEHL.  Deutsch.  fl.  2  ed.  iii,  65  (1813). 
Rhacomitrium  fontinaloides  BRID.  Mant.  80  (1819). 
Guembelia  fontinaloides  C.  MUELL.  Synops.  ii,  652  (1851). 
Cinclidotus  minor  LINDB.  De  Tort.  255  (1864). 
Sekra  minor  (L.)  LINDB.  Muse,  scand.  23  (1879). 

Dioicous  ;  stems  3 — 8  in.  long,  crowded  in  soft  olive-green  fasciculate 
tufts,  rooting  on  stones  and  floating,  the  lower  part  setulose  with  the 
persistent  nerves  of  abraded  leaves.  Leaves  elongato-lanc.,  decurrent, 
obtuse  or  very  shortly  apiculate,  unequal,  subflexuose,  patulous  or 
slightly  secund,  twisted  when  dry,  subcarinate,  slightly  toothed  at  apex, 
border  thick  rounded  subterete,  nerve  thick,  plane  above,  prominent  at 
back,  excurrentinamucro ;  basal  cells  small  rectangular,  upper  hexagonal 
opake.  Fertile  branches  short,  suberect,  often  secund,  fruit  immersed, 
lower  perich.  bracts  oblong-ovate,  upper  oblong,  attenuate,  subacute,  the 
nerve  vanishing.  Calyptra  conico-cucullate,  chartaceous  ;  caps,  ovate- 
oblong,  leptodermous,  sulcate  when  dry,  fuscous ;  lid  conic,  slightly 
curved,  half  length  of  capsule;  peristome  purple,  twisting  to  the  right, 
teeth  from  a  narrow  cancellated  basal  membrane,  16,  each  separating 
into  2 — 3  filiform  legs,  anastomosing  at  base  and  adhering  to  the  exserted 
apex  of  columella.  Male  plants  more  slender,  the  infl.  gemmiform, 
collected  into  small  clusters,  bracts  broadly  ovate,  concave,  shortly 
acuminate. 

HAB. — Attached  to  stones   or  wood    in  streams,   especially    in    limestone 
districts  ;  not  uncommon.     Fr.  4 — 5. 

This  genus  stands  between  Tortulaceae  and  Grimmiaceae,  and  is  usually 
associated  with  the  latter,  but  both  in  peristome  and  leaf-structure,  its 
affinity  is  clearly  strongest  with  the  former. 


TORTULACE^.]  279  [Leersia. 

In  Mr.  Hunt's  herbarium  is  a  specimen  of  C.  aquations,  with  the  label 
"  Mourne  mountains,  Co.  Down,  Ireland,  with  C.  fontinaloides,"  but  as  no 
recent  collectors  have  met  with  it,  I  have  not  figured  it,  although  it  is  a 
species  quite  likely  to  occur  ;  it  may  be  readily  distinguished  by  the  leaves, 
which  are  narrowly  linear-lanceolate  and  falcato-secund. 

Subf.  3.  LEERSIE^E.  Plants  growing  in  small  tufts  on  the  ground  or 
on  rocks.  Leaves  spathulate,  basal  cells  fragile,  hyaline,  foraminate,  upper 
with  verruciform  papillae.  Calyptra  large,  cylindric,  rostrate.  Capsule 
cylindric  ;  peristome  none,  single  or  double. 

LEERSIA    Hedw. 

Fund.  muse.  II,  88  (1782). 

Plants  caespitulose,  dichotomous.  Leaves  lingulate  or  spathulate, 
the  basal  cells  rectang.  fragile,  hyaline,  foraminate,  the  upper  chloro- 
phyllose,  papillose.  Calyptra  enclosing  the  whole  caps.,  cylindric  with 
a  styliform  beak  ;  caps,  cylindraceous,  erect  on  a  tall  seta ;  per.  none, 
simple  of  16  teeth  or  double.  Inhabiting  the  ground  and  rocks. — 
Named  in  honour  of  John  Daniel  Leers  of  Herborn  in  Nassau. 

The  fine  mosses  which  constitute  this  genus  are  readily  known  by  their 
large  tubular  calyptra,  which  is  very  persistent,  and  in  falling  takes  the  lid 
with  it.  The  large  opake  leaves  are  not  unlike  those  of  Tortula  subulata,  &c., 
but  are  generally  rufous  at  base,  and  their  upper  cells  are  protuberant  and 
provided  with  large  papillae,  cleft  at  top  into  several  heads.  The  vaginula  is 
oblong  and  generally  crowned  with  an  ochrea  or  saucer-shaped  membrane 
originating  in  the  base  of  the  calyptra,  which  in  the  young  state  is  inflexed, 
and  when  older  and  torn  off,  is  entire,  or  lacerate,  or  fringed  with  ramentaceous 
processes.  The  peristome  when  present  consists  of  red,  slender  teeth 
composed  of  1—4  series  of  cells,  and  the  endostome  of  pairs  of  cilia,  concrete 
above,  joined  at  base  to  a  thin  punctulate  membrane  adherent  at  the 
lower  part  to  the  teeth  of  the  peristome. 

Schreber  in  1791  superseded  Hedwig's  name  by  that  of  Encalypta  and 
Leersia  was  again  used  in  1788  by  Swartz — adopting  a  MSS.  name  of 
Solander's — for  a  genus  of  grasses  which  had  already  in  1776  been  named 
Homalocenchrus  by  Mieg  in  Pollich*'s  Hist.  Plant,  in  Palatinatu ;  it  is  clear 
therefore  that  the  original  name  Leersia  must  be  retained  for  the  genus  of 
mosses.  About  25  species  are  described. 

CLAVIS  TO  THE  SPECIES. 

Capsule  smooth  or  faintly  striolate. 

Calyptra  not  fringed  at  mouth,  peristome  none. 

Calyptra  smooth  at  apex.  alpina. 

—  scabrous  at  apex.  exstinctoria. 

Calyptra  fringed  at  mouth,  peristome  present.  laciniata. 

Capsule  sulcato-striate. 

Plants  short ;  strias  vertical.  rhabdocarpa. 

—  tall ;  striae  twisted  spirally.  contorta. 

Sect.  i.     PSILOTHECA  C.  Muell.     Capsule  smooth  or  faintly  striolate. 


TORTULACE^E.]  280  \Leersia. 

i.    LEERSIA    ALPINA.  (Smith]  Lindb. 

Autoicous  ;  dichotomously  branched.  Leaves  erecto-patent,  sub- 
squarrose,  ovato-lanceolate,  acuminate,  nerve  excurrent  in  a  long  point. 
Caps,  gymnostomous ;  beak  of  calyptra  glabrous.  (T.  XLII,  A.) 

Sy^.— Encalypta  intermedia  FROELICH  MSS.  in  herb.  Wulfen. 

Encalypta  alpina  SMITH  Eng.  Bot.  t.  1419  (1805).  WAHLEN.  Fl.  lapp.  312  (1812),  Fl. 
carpat.  335  (1814),  Fl.  suec.  2  ed.  ii,  790  (1833)  excl.  syn.  LINDB.  in  Act.  soc.  sc. 
fenn.  x,  269  (1872). 

Encalypta  affinis  (non  HEDW.)  SCHWAEG.  Suppl.  I,  P.  I,  58,  t.  16  (1811).  ROEHL. 
Deutsch.  fl.  iii,  53  (1813).  FUNCK  Moost.  12,  t.  7  (1821).  BRID.  Bry.  univ.  i,  143 
(1826). 

Encalypta  ciliata  ft-  alpina  HOOK.  TAYL.  Muse.  brit.  35   (1818).     HOOK.  Fl.  scot.  128 

(1821). 
Encalypta  ciliata  (3.  pilifera  HOOK.  TAYL.  Muse.  br.  2  ed.  63  (1827).  Br.  flora  ii,  18 

(1833)- 
Encalypta  commutata  NEES  HORNSCH.  Bry.  germ,  ii,  P.  I,  46,  t.  15,  f.  4  (1827).  HUEBEN. 

Muse.  germ.   100  (1833).     BR.  SCHIMP.  Bry.  eur.  fasc.  4,  p.  8,  t.  i   (1839).     RABENH. 

Deutsch.  kr.  fl.  ii,  S.  3,  170  (1848).     C.  MUELL.  Synops.  i,  513  (1849).    WILS.  Bry.  brit. 

141,  t.  44  (1849).     SCHIMP.  Synops.  285  (1860),  2  ed.  340.     BERK.   Handb.  br.  m.  246 

(1863).     DE  NOT.   Epil.  bri.  ital.  325  (1869).     MILDE  Bry.  siles.  181  (1869).     HOBK. 

Syn.  br.  m.  74  (1873).  JURATZ.  Laubm.  oesterr.-ung.  213  (1882).    LESQ.  JAMES  Mosses 

N.  Amer.  180  (1884). 

Encalypta  lacera  DE  NOT.  Syllab.  268  (1838).     C.  MUELL.  Synops.  i,  514  (1849). 

E.  caifcasica  RUPR.  in  Bull.  soc.  imp.  de  nat.  Mosc.  1846,  p.  521.     C.  MUELL.  Synops.  i, 

522. 
Lecrsia  alpina  LINDB.  Muse,  scand.  20  (1879). 

Autoicous  ;  in  dull  yellow-green  tufts,  i  in.  high,  dichotomously 
branched,  radiculose.  Lower  leaves  ovato-lanc.,  upper  from  an  erect 
sheathing  base,  erecto-patent  and  subsquarrose,  elongated,  acuminate, 
cuspidate  with  the  excurrent  nerve,  subundulate  above  the  base,  flat  at 
margin;  cells  at  base  lax  rufous,  the  marginal  narrow  and  linear,  forming  a 
yellowish  limb,  above  small,  opake,  but  little  incrassate,  papillose. 
Perich.  bracts  shorter,  ovate ;  seta  longish,  twisted  to  the  right  above, 
purple^  vaginula  thick,  ovoid  ;  cal.  reaching  below  capsule,  glossy,  fus- 
cescent,  with  a  smooth  spadiceous  point,  irregularly  torn  at  the  paler 
base ;  caps,  ovato-cylindraceous,  straight  or  curving,  fuscous,  smooth, 
glossy,  faintly  striolate,  stornata  at  base  numerous,  annulus  narrow,  the 
narrow  mouth  girt  by  a  thin  horizontal  membrane,  peristome  none,  lid 
conic,  longly  rostrate.  Male  infl.  gemmiform,  terminal  on  short  lateral 
branches,  bracts  ovato-lanc.  apiculate,  nerved. 
HAB. — Crevices  of  mountain  rocks  ;  rare.  Fr.  7 — 8. 

Ben  Lawers  (Hooker  and  Gremlle)  \  \  Craigailleach  (Wilson) !  Ingleborough  (Hooker). 
Ben  Ledi  (Holmes  1880)  ! 

Var.  (3.  imberbis  Lindb. 

Plants  tall,  densely  tufted  ;  leaves  with  the  apex  subcucullate  from  the 
incurved  margins,  and  the  nerve  vanishing  at  the  rather  obtuse  point. 
(T.  XLII,  B,  8.) 


TORTULACE.E.]  281  [Leersia. 

HAB. — Ben  Laoigh,  Perthshire  (Holt,  July,  1880)  !  ! 

This  species  is  best  distinguished  by  the  smaller  dense  cells  in  the  upper 
part  of  the  leaf,  which  is  also  more  acuminate  than  in  any  of  our  other 
species. 

2.   LEERSIA  EXSTINCTORIA  (L.)   Leyss. 

Autoicous ;  short,  radiculose.  Leaves  oblong-lane.,  obtuse  or 
apiculate  with  the  excurren.  nerve.  Caps,  cylindric,  smooth  ;  calyptra 
pale,  entire  at  base,  scabrous  at  apex ;  per.  none  or  pale  and  very 
fugacious.  (T.  XLII,  B.) 

SYN. — Muscus  trichoides  minor  pileis  magnis  acutis  MERR.    Pinax  89  (1667).     RAY  Synops. 
2  ed.  324  (1696). 

Adiantum  aureum  perpusillum  foliis  congestis  acutis,  pileolo  extinctorii  figura  RAY  Synops. 

2  ed.  32,  n.  24. 
Bryum  erectis  capitulis,  calyptra  laxa  conica,  foliis  serpylli  pellucidi  angustioribus  DILL. 

Cat.  Giss.  223  (1719),  in  RAY  Synops.  3  ed.  92  (1724). 

Bryum  calyptra  exstinctorii  figura,  minus  DILL.  Hist.  muse.  349*  t.  45,  f.  8  (1741)  et 
Herbar. 

Bryum  exstinctorium  L.  Sp.pl.  1116  (1753);  Syst.  nat.  ii,  701.  HUDS.  Fl.  angl.  405 
(1762).  WEISS  Cr.  goett.  185  (1770).  NECK.  Meth.  muse.  207  (1771).  WITH.  Bot. 
arr.  br.  veg.  ii,  672  (1776).  LIGHTF.  Fl.  scot,  ii,  718  (1777).  WEB.  Spic.  fl.  goett.  98 
(1778).  RELH.  Fl.  cant.  402  (1785).  SM.  Eng.  bot.  t.  558.  Fl.  dan.  t.  IQOI.  ABBOT 
Fl.  bedf.  239  (1798).  HULL  Br.  fl.  P.  2,  258  (1799). 

Leersia  vulgaris  HEDW.  Fund.  II,  88  (1782),  Muse,  frond,  i,  46,  t.  18  (1787).  ROTH 
Fl.  germ,  i,  455  (1788).  TIMM  Fl.  meg.  n.  730  (1788).  SCHRANK  Baiers  fl.  ii,  443 
(1789).  BRID.  Muse.  rec.  II,  P.  I,  51  (1798). 

Leersia  exstinctoria  LEYSSER  Fl.  hal.  n.  1053  (1783).  BROCKM.  Beitr.  kr.  fl.  Mekl.  23 
(1863). 

Mnium  exstinctorium  SWARTZ  Meth.  muse.  365  (1787). 

Encalypta  exstinctoria  SWARTZ  Muse.  suec.  24  (1799).  HARTM.  Skand  fl.  WAHLENB. 
Fl.  upsal.  385  (1820).  BROCKM.  Laubm.  Mekl.  90  (1869). 

Encalypta  vulgaris  HEDW.  Sp.  muse.  t.  60  (1801).  SM.  Fl.  brit.  iii,  1180  (1804).  TURN. 
muse.  hib.  17  (1804).  ROEHL.  Moosg.  deutsch.  89  (1800),  Deutsch.  fl.  iii,  52  (1813), 
Ann.  Wett.  ges.  iii,  115.  P.  BEAUV.  Prodr.  56  (1805).  SCHULTZ  Fl.  starg.  281  (1806). 
WEB.  MOHR  Bot.  Tasch.  106  (1807).  BRID.  Sp.  muse.  I,  88  (1806),  Mant.  28  (1819), 
Bry.  univ.  i,  139  (1826).  SCHWAEG.  Suppl.  I,  P.  I,  56  (1811).  VOIT  Muse.  herb.  20 
(1812).  WAHLEN.  Fl.  lapp.  311  (1812),  Fl.  carp.  335  (1814).  MART.  Fl.  cr.  erl.  115 
(1817).  HOOK.  TAYL.  Muse.  br.  35,  t.  13  (1818).  GRAY  Nat.  arr.  br.pl.  i,  725  (1821). 
HOOK.  Fl.  scot.  P.  2,  128  (1821),  Br.  fl.  ii,  18  (1833).  FUNCK  Moost.  n,  t.  7  (1821). 
NEES  HORNSCH.  Bry  germ,  ii,  P,  I,  32,  t.  14,  f.  r  (1827).  HUEBEN.  Muse.  germ.  98 
(1833).  MACK.  Fl.  hib.  P.  2,  13  (1836).  BR.  SCHIMP.  Bry.  eur.  fasc.  4,  p.  9,  t.  2  (1839). 
DE  NOT.  Syll.  269  (1838),  Epil.  bri.  ital.  324  (1869).  RABENH.  Deutsch.  kr.  fl.  ii,  S.  3, 
169  (1848).  C.  MUELL.  Synops.  i,  516  (1849).  WILS.  Bry.  br.  142,  t.  13  (1855). 
SCHIMP.  Synops.  286  (1860),  2  ed.  341.  BERK.  Handb.  br.  m.  246,  t.  22,  f.  i  (1863). 
MILDE  Bry.  siles  181  (1869).  HOBK.  Syn.  br.  m.  75  (1873).  HUSN.  Mouss.  nord-ouest 
in  (1873).  JURATZ.  Laubm.  oesterr.-ung.  214  (1882).  LESQ.  JAMES  Mosses  N.  Amer. 
181  (1884). 

Encalypta  Orsinii  DE  NOT.  Syllab.  267  (1838). 

Encalypta  leptodon  Var.  exstinctoria  LINDB.  in  Act.  soc.  sc.  fenn.  X,  268  (1872). 

Autoicous;  densely  tufted,  radiculose  at  base,  dark  green,  with 
short  thick  branches.  Leaves  erecto-patent,  when  dry  incurved  and 
subcomplicate,  lingulate,  apiculate  or  obtuse,  subundulate,  nerve  strong, 
reddish,  vanishing  at  or  below  apex  or  excurrent ;  cells  at  mid-base 
more  laxly  rectangular,  very  thin,  at  margin  narrow  and  yellowish. 


TORTULACE^E.J  282  [Lecrsia. 

Perich.  bracts  ovato-lanceolate ;  vaginula  somewhat  contracted  at 
middle.  Calyptra  reaching  neck  of  caps.,  thin,  pale  yellow-green,  equal 
or  lacerate  at  base,  scabrous  at  apex ;  caps,  on  a  red  seta,  ovato-cylindric, 
leptodermous,  when  dry  and  empty  cylindric  and  faintly  striate,  pale 
yellowish  brown,  orange  at  neck  and  mouth ;  ann.  simple,  red,  lid 
straight  with  a  subulate  beak ;  per.  none  or  with  pale  truncate  very 
fugacious  teeth ;  spores  large,  papillose.  Male  infl.  gemmaceous, 
axillar,  bracts  ovate,  convolute,  acuminate,  the  nerve  obsolete. 
HAB. — Walls  covered  with  earth,  banks  and  rocks  ;  not  uncommon.  Fr.  3 — 5. 
VAR.  ft.  pilifera  (Funck). 

Plants  shorter,  leaves  narrower  with  the  nerve  excurrent  in  a  pale 
yellowish  hair. 

SYN. — EncalyptapiliferaFuncK  Crypt,  gew.  fasc.  26,  n.  527,  Flora  i,  255,  Moostasch.  12,  t.  7. 
BRID.  Bry.  univ.  i,  141.     STURM  Deutsch.  fl.  cr.  2,  17.  . 
Enc.  vulgaris  var.  pilfera  HUEB.  Muse.  germ.  99. 

HAB. — Youlgreave  and  Buxton  (Wilson). 

Var.  y.  obtusifolia  (Funck.) 

Stem  erect,  branched  ;  leaves  dilated  at  base,  obtuse,  the  nerve  vanishing. 
SYN. — Encalypta  obtusifolia  FUNCK.  BRID.  Bry.  univ.  i,  766. 

Enc.  vulgaris  var.  obtusa  NEES  HORNSCH.  Bry.  germ,  ii,  P.  I,  35.  HUEB.  Muse.  germ.  98. 
SCHIMP. 

Enc.  vulgaris  var.  mutica  BRID.  Bry.  univ.  i,  141. 

HAB. — Youlgreave  and  Rhuddlan  Castle,  N.  Wales  (Wilson)  \ 

The  peristome  in  this  moss  is  very  thin  and  fragile  and  is  thus  probably 
destroyed  by  adhesion  to  the  lid,  for  its  presence  is  extremely  rare.  The 
dull  paper-like  calyptras  are  the  first  objects  to  direct  attention  to  this 
species,  which  is  more  or  less  generally  distributed,  but  never  occurs  in  great 
quantity. 

3.  LEERSIA  LACINIATA  Hedw. 

Autoicous  ;  branched  ;  leaves  oblong-ligulate,  patulous,  shortly 
acuminate,  margin  revolute  below  middle,  nerve  excurrent.  Caps, 
subcylindric,  smooth  ;  calyptra  with  the  base  contracted  and  bordered 
with  cuneate  lacinise,  nearly  smooth  at  apex.  (T.  XLII,  C.) 

SYN.— Bryum  erectis  longis  et  obtusis  capitulis,  calyptra   laxa  conica,  foliis   serpylli  pellucidi 
latioribus  DILL.  Cat.  Giss.  223  (1719). 

Bryum  calyptra  extinctorii  figura,  majus  et  ramosum  DILL.  Hist.  muse.  350,  t.  45,  f.  9 
(1741)  et  Herbar. 

Bryum  exstinctorium  var.  ft.  L.  Sp.  pi.  1116(1753).  HUDS.  Fl.  angl.  405  (1762).  WEISS 
Cr.  goett.  187  (1770).  NECK.  Meth.  muse.  207  1771).  WITH.  Bot.  arr.  br.  veg.  ii, 
672  (1776).  LIUHTF.  Fl.  scot,  ii,  719  (1777).  WEB.  Spic.  fl.  goett.  99  (1778).  HULL 
Br.  fl.  258  (1799). 

Leersia  laciniata  HEDW.  Fund.  II,  103  (1782). 


TORTULACE.E.]  283  [Leersia. 

Leersia  ciliata  HEDW.  Muse,  frond,  i,  49,  t.  19  (1787).  EHRH.  PI.  crypt,  n.  123.  SCHRANK 
Bayers,  fl.  ii,  443  (1789). 

Leersia  fimbriata  BRID.  Muse.  rec.  II,  P.  I,  53  (1798). 

Encalypta  ciliata  HOFFM.  Deutsch.  fl.  ii,  27  (1795).  SWARTZ  Muse.  suec.  25  (1799).  ROTH 
Fl.  germ,  iii,  P.  I,  153  (1800).  ROEHL.  Moosg.  deutsch.  104  (1800),  Deutsch.  fl.  iii, 
53  (1813).  Ann.  Wett.  ges.  ii,  115.  HEDW.  Sp.  muse.  61  (1801).  SM.  fl.  brit.  iii,  1181 
(1804),  Eng.  Bot.  t.  1418.  TURN.  Muse.  hib.  18  (1804).  Fl.  dan.  t.  1416.  WEB.  MOHR 
Bot.  Tasch.  107  (1807).  SCHKUHR  Deutsch.  kr.  gew.  P.  2,  45,  t.  19  (1810).  SCHWAEG. 
Suppl.  I,  P.  I,  59  (1811).  VOIT  Muse.  herb.  19  (1812).  WAHLENB.  Fl.  lapp.  311  (1812), 
Fl.  carpat.  335  (1814),  Fl.  Upsal.  386  (1820).  HOOK.  TAYL.  Muse.  brit.  35,  t.  13  (1818). 
FUNCK  Moost.  12,  t.  7  (1821).  HOOK.  Fl.  scot.  P.  2,  128  (1821),  Br.  fl.  ii,  18  (1833). 
GRAY  Nat.  arr.  br.  pi.  i,  726  (1821).  NEES  HORNSCH.  Bry.  germ,  ii,  P.  I,  59,  t.  15,  f.  8 
(1827).  HARTM.  Skand.  fl.  HUEBN.  Muse.  germ.  106  (1833).  DE  NOT.  Syllab.  266 
(1838),  Epil.  bri.  ital.  322  (1869).  BRUCH  SCHIMP.  Bry.  eur.  fasc.  4,  p.  10,  t.  3  (1839). 
RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  170  (1848).  C.  MUELL.  Synops.  i,  517  (1849).  WILS. 
Bry.  br.  143,  t.  13  (1855).  SCHIMP.  Synops.  288  (1860),  2  ed.  343.  BERK.  Handb.  br. 
m.  247  (1863).  MILDE  Bry.  siles.  183  (1869).  HOBK.  syn.  br.  m.  75  (1873).  HUSN. 
Mouss.  nord-ouest  in  (1873).  JURATZ.  Laubm.  oesterr.-ung.  217  (1882).  LESQ.  JAMES 
Mosses  N.  Amer.  182  (1884). 

Bryum  ciliare  GMEL.  Syst.  nat.  ii,  1332  (1791).     DICKS.  Cr.  Fasc.  IV,  15  (1801). 

Encalypta  fimbriata  BRID.  Sp.  muse.  I,  89  (1806),  Mant.  30  (1819),  Bry.  univ.  i,  145 
(1826).  ROEHL.  Deutsch.  fl.  iii,  53. 

Encalypta  clausa  WALLR.  Fl.  cr.  germ,  i,  125  (1831). 
Encalypta  laciniata  LINDB.  in  Act.  soc.  sc.  fenn.  X,  269  (1872). 

Autoicous  ;  in  small  lax  pale  green  tufts,  with  short  dichotomous 
innovations.  Leaves  soft,  erecto-patent,  when  dry  complicate  and 
circinato-incurved,  broadly  oblong-ligulate,  carinate-concave,  subundu- 
late  at  margin  and  revolute  at  middle,  strongly  verruculose  ;  nerve 
strong,  pale  yellow,  excurrent  in  a  soft  mucro  or  vanishing  below  the 
pale  apiculus,  cells  above  coarse,  rounded,  at  base  lax,  pellucid,  rufous, 
scarcely  limbate.  Inner  perich.  bracts  thin,  broadly  ovate,  nerved,  about 
as  long  as  the  oblong  vaginula  with  its  tubular  ochrea.  Calyptra  pale 
straw-coloured,  prolonged  below  the  caps.,  the  base  contracted  and 
encircled  by  short  cuneate  laciniae,  connivent  when  dry,  patent  when 
moist,  the  apex  smooth  or  slightly  papillose.  Caps,  on  a  yellow  or  red 
seta,  oblongo-cylindraceous,  at  first  yellow,  finally  rufo-fuscous,  smooth, 
when  dry  slightly  contracted  below  mouth,  annulus  indistinct,  lid 
conico-subulate,  shorter  than  caps.,  peristome  arising  below  orifice, 
small,  of  16  narrowly  lanceolate  red  punctate  teeth,  sometimes  irregular, 
when  dry  horizontally  closing  the  capsule,  patent  when  moist ;  spores 
large,  smooth.  Male  infl.  gemmiform,  in  the  axils  of  the  comal  leaves, 
bracts  thin,  ovate,  apiculate. 

HAB. — On  rocks  in  subalpine  districts,  not  common.     Fr.  6 — 7. 

Ben  Lawers  and  Craig  Ailleach  (Hooker)  \  \  Teesdale  (Spruce)  \  !  Ingleboro  and 
Malham  Tarn  (Nowell  1854)  !  Snowdon  (Wilson).  Loughrigg  Fell,  Rydal  (Wood 
1864)  !  Rannoch  (B.  White  1867)  !  Mardale  (Barnes  1869)  !  Langdon  beck 
(Stabler  1868)  !  Canlochan  (Hunt  1868)  !  !  Whernside  (Lees  and  West  1878)  !  Ben 
Aught,  Clova  (Howse)  !  ! 

Sect.  2.     RHABDOTHECA.     C.  Muell.      Capsule  strongly  sulcato-striate. 


TORTULACE^E.]  284  'Leersia. 

4.    LEERSIA  RHABDOCARPA  (Schwaegr.}  Lindb. 

Autoicous  ;  densely  csespitose.  Leaves  oblongo-lanc.,  rather  acute 
nerve  vanishing  or  excurrent.  Caps,  sub-cylindric,  with  8 — 16  erect 
striae;  cal.  scabrous  at  apex,  per.  of  16  lanceolate  teeth.  (T.  XLII,  D.) 

SYN. — Leersia  vulgaris  ft.  alpina  BRID.  muse.  rec.  II,  P.  I,  53  (1798). 

Encalypta  rhaptocarpa  SCHWAEG.  Suppl.  I,  P.  I,  56,  t.  16  (1811).  ROEHL.  Deutsch. 
fl.  iii,  53  (1813).  FUNCK  Moost.  12,  t.  7  (1821).  GREV.  Scott,  cr.  fl.  t.  163  (1825).  BRID. 
Mant.  29  (1819),  Bry.  univ.  i,  142  (1826).  HOOK.  TAYL.  Muse.  br.  2  ed.  64,  T.  Suppl.  2, 
(1827).  NEES  HORNSCH.  Bry.  germ,  ii,  P.  I,  38,  t.  14,  f.  2  (1827).  HUEBEN.  Muse, 
germ.  102  (1833).  MACK.  Fl.  hib.  P.  2,  13  (1836).  DE  NOT.  Syll.  265  (1838),  Epil. 
bri.  ital.  323  (1869).  BR.  SCHIMP.  Bry.  eur.  fasc.  4,  p.  13,1.  6  (1839).  RABENH.  Deutsch. 
kr.  fl.  ii,  S.  3,  171  (1848).  C.  MUELL.  Synops.  i,  520  (1849).  WILS.  Bry.  br.  144, 
t.  32  (1855).  SCHIMP.  Synops.  287  (1860),  2  ed.  342.  BERK.  Handb.  br.  m.  247  (1863). 
MILDE  Bry.  siles.  182  (1869).  LINDB.  in  Act.  soc.  sc.  fenn.  268  (1872).  HOBK.  Syn. 
br.  m.  75  (1873).  JURATZ.  Laubm.  oesterr.-ung.  215  (1882).  LESQ.  JAMES  Mosses  N. 
Amer.  181  (1884). 

Encalypta  ciliata  y.  rhaptocarpa  HOOK.  TAYL.  Muse.  br.  36  (1818).  GRAY  Nat.  arr.  br. 
pi.  i,  726  (1821). 

Leersia  rhabdocarpa  LINDB.  muse,  scand.  20  (1879). 

Autoicous  ;  densely  tufted  and  radiculose,  resembling L.exstinctoria. 
Leaves  when  wet  erecto-patent,  when  dry  somewhat  twisting,  ovato 
and  oblongo-lanceolate  or  ligulate,  concave  at  base,  flattish,  nerve 
rufescent,  vanishing  at  apex  or  excurrent  in  a  mucro  or  yellowish  hair, 
upper  margin  crenulate  with  papillose  cells,  basal  lax,  hyaline  or 
rufescent,  very  narrow  at  margin.  Inner  perich.  bracts  shorter,  oblong, 
aristate  ;  vaginula  short,  expanded  at  apex  like  a  plate ;  calyptra  straw- 
coloured,  sublacerate  at  base,  scabrous  at  apex ;  caps,  narrowly  ovate 
or  sub-cylindric,  pale  fuscous  with  8 — 16  rufous  erect  striae,  when  dry 
deeply  sulcate,  with  a  hemispherical  hypophysis  ;  annulus  simple,  lid 
convex,  subulate,  shorter  than  caps.  ;  teeth  lanceolate,  remotely  articu- 
late, entire  or  perforated  ;  spores  green,  verruculose.  Male  infl.  lateral, 
bracts  ovate,  shortly  acuminate. 

HAB. — On  the  ground  and  crevices  of  rocks  in  alpine  districts.     Fr.  7 — 8. 

Ben  Bulben,  Sligo  (Mackay).  Ben  Lawers  and  Craigailleach  (Gremlle).  Ingleboro 
(Nowell  1857)  '  •  Largo  Links  (Howie  1864) !  !  Ptarmigan  m.  (Rogers  1876). 

At  first  sight  much  resembling  L.  exstinctoria,  but  easily  separated  by 
the  longitudinally  striate  capsule,  and  presence  of  a  peristome. 


5.  LEERSIA  CONTORTA  (Wulf.)  Lindb. 

Dioicous ;  tall,  densely  tufted.  Leaves  lingulate,  obtuse,  nerve 
scabrous  at  back,  vanishing  at  apex,  cells  strongly  papillose.  Caps, 
cylindric,  deeply  spirally  8-sulcate  ;  cal.  scabrous  at  apex;  per. 
double,  outer  of  16  subulate  teeth,  inner  of  shorter  cilia.  (T.  XLII,  E.) 


ToRTULACEjE.]  285  \Leersia. 

SYN. — Hypnum  saxatile  arcctiim,  ramnlis  teretibus,  foliis  subrottindis  saturate  viridibus   DILL. 
Cat.  Giss.  220  (1719),  Hist.  muse.  335,  t.  43,  f.  71  (1741)  et  Herbar. 

Bryum  contortum  WULF.  in  JACQ.  Coll.  ii,  236,  excl.  syn.  Dill.  (1788). 
Encalypta  grandis  SWARTZ  in  SCHRAD.  Journ.  ii,  172  (1799). 

Encalypta  streptocarpa  HEDW.  Sp.  muse.  62,  t.  10,  f.  10 — 18  (1801).  SM.  Fl.  brit.  iii, 
1182  (1804),  Eng.  Bot.  t.  2163.  BRID.  Sp.  muse.  I,  89  (1806),  Mant.  30  (1819),  Bry. 
univ.  i,  144  (1826).  WEB.  MOHR  Bot.  Tasch.  107  (1807).  SCHKUHR  Deutsch.  kr.  gew. 
P.  II,  45,  t.  29  (1810).  SCHWAEG.  Suppl.  I,  P.  I,  59  (1811).  VOIT  Muse.  Herb.  18 
(1812).  WAHLENB.  Fl.  carp.  335  (1814).  ROEHL.  Deutsch.  fl.iii,  53  (1813),  Ann.  Wett. 
ges.  iii,  116.  MART.  Fl.  cr.  erl.  115  (1817).  HOOK.  TAYL.  Muse.  br.  34,  t.  13  (1818). 
SCHULTZ  Suppl.  fl.  starg.  66  (1819).  FUNCK  Moostasch.  12,  t.  8  (1821).  HOOK.  Fl. 
scot.  P.  II,  128  (1821),  Br.  fl.  ii,  18  (1833).  HARTM.  Skand.  fl.  386.  GRAY  Nat.  arr. 
br.  pi.  i,  725  (1821).  WALK.  ARM.  Disp.  meth.  23  (1825).  NEES  HORNSCH.  Bry. 
germ,  ii,  P.  I,  55,  t.  15,  f.  7  (1827).  HUEBEN.  Muse.  germ.  107  (1833).  MACK.  Fl.hib. 
P.  2,  13  (1836).  DE  NOT.  Syll.  264  (1838),  Epil.  bri.  ital.  321  (1869).  BR.  SCHIMP. 
Bry.  eur.  fasc.  4,  15,  t.  7  (1839).  RABENH.  Deutsch.  kr.  fl.  ii.  S.  3,  172  (1848). 
C.  MUELL.  Synops.  i,  521  (1849).  WILS.  Bry.  br.  145,  t.  13  (1855).  SCHIMP. 
Synops.  292  (1860),  2  ed.  347.  BERK.  Handb.  br.m.  247  (1863).  MILDE  Bry.  siles.  183 
(1869).  HOBK.  Syn.  br.  m.  76  (1873).  HUSN.  Mouss  nord-ouest  112  (1873). 
LESQ.  JAMES  Mosses  N.  Amer.  183  (1884). 

Encalypta  contorta  HOPPE  Bot.  Taschenb.  BROCKM.  Laubm.  Mekl.  91  (1869).  LINDB. 
in  Act.  soc.  sc.  fenn.  X,  268  (1872).  JURATZ.  Laubm.  oesterr.-ung.  219  (1882). 

Leersia  streptocarpa  BROCKMULLER  Beitr.  kr.  fl.  Mekl.  23  (1863). 
Leersia  contorta  LINDB.  Muse,  scand.  19  (1879). 

Dioicous ;  in  large  coarse  tufts,  deep  green  above,  fuscous  and 
densely  radiculose  below,  the  young  shoots  light  green.  Leaves 
patulous,  when  dry  laxly  incumbent  and  incurved,  from  a  clasping 
diaphanous  base,  limbatewith  narrow  cells,  oblongo-lingulate,  muticous, 
the  wings  sometimes  incurved  at  apex  and  subcucullate,  the  cells 
coarsely  rotundate  and  strongly  papillose  ;  nerve  rufous,  prolonged  to 
apex,  scabrous  at  back.  Perich.  bracts  from  an  oblong  concave  base, 
suddenly  acuminate,  convolute,  erect.  Calyptra  very  long,  narrow, 
cylindraceous,  fuscescent,  fimbriato-lacerate  at  mouth,  very  rough  at 
apex ;  caps,  on  a  tall  red  seta,  long,  from  ovate  cylindraceous, 
obliquely  or  sub-spirally  orange-striate,  when  dry,  cylindric,  spirally 
8 — sulcate  ;  lid  clavellate,  orange,  half  length  of  caps.;  annulus  broad, 
double,  rolling  back  ;  teeth  of  per.  half  length  of  caps.,  purple,  filiform, 
erect,  remotely  nodulose,  minutely  papillose ;  endostome  one  half 
shorter  than  peristome,  of  32  yellowish  filiform  cilia  in  pairs,  united  to 
the  middle  to  a  punctulate  membrane  closely  applied  to  the  teeth  ; 
spores  very  small,  green,  smooth.  Male  plant  less  robust,  infl.  terminal 
gemmiform,  bracts  broadly  ovate,  subacuminate. 

HAB. — Rocks,  walls  and  gravelly  banks,  especially  on  limestone.     Fr.  8. 

Not  uncommon  but  very  rarely  fertile  ;  c.  fr.  Youlgreave,  Derby  (Bowman).  Matlock 
(Wilson).  Bolton  Bridge  (Nowell)  !  !  Wall  of  a  bridge  at  Blair  Atholl.  Bridge  by 
Ossian's  hall,  Dunkeld  (Hooker  1815)  !  !  Near  Lough  Bray  (Mackay).  Jackdaw  crag 
quarry,  Tadcaster  (Wesley  1878)  !  ! 


TORTULACE^E.]  286  [Leersia. 

The  largest  of  our  species  and  easily  recognized  by  its  coarse  rigid 
leaves,  opake  with"  stout  papillae.  It  is  extremely  abundant  at  Pitlochry,  but 
is  seldom  seen  in  fruit  in  this  country. 


TAB.  XXVII.  A.  Ephemerum  serratum  (Sydenham,  George).  B.  Eph.  mimitissimum  (Hurst, 
Mitten).  C.  Eph.  intermedium  (Hurst,  Mitten).  D.  Eph.  coharens  (Ireland,  Moore). 
E.  Eph.  stenophyllun  and  ft.  var.  brevifolium  (Mere,  Wilson).  F.  Eph.  recurvifolium 
Sussex,  Davies).  G.  Acaulon  triquetrum  (Sussex,  Davies).  H.  Ac.  muticum  and 
ft.  var.  minus  (Sussex,  Davies).  I,  Phascum  acaulon  (Croydon,  Braithwaite),  ft.  var. 
piliferum  ;  y.  var.  elatum  ;  $.  var  curvisetum.  K.  Phase.  Floerkei  and  ft.  var.  badium 
(Sussex,  Davies). 

TAB.  XXVIII.  A.  Phascum  curvicolle  (Plymouth,  Holmes').  B.  Pottia  recta  (Levens,  Barnes) 
C.  P.  bryoidcs  (Levens,  Barnes),  and  ft.  var.  Thornhillii.  D.  P.  Heimii  (Shoreham, 
Braithwaite).  E.  P.  truncatula  (Chiselhurst,  Braithwaite).  F.  P.  intermedia  (Ches- 
hire, Wilson).  G.  P.  litoralis  (Sussex,  Mitten). 

TAB.  XXIX.  A.  Pottia  lanceolata  (Gravesend,  Braithwaite).  B.  P.  caspitosa  (Arundel, 
Davies).  C.  P.  Starkei  (Sussex,  Davies),  ft.  var.  affinis,  y.  var.  Davallii.  D.  P. 
asperula  (Penzance,  Curnow).  E.  P.  viridi  folia  (Plymouth,  Holmes).  F.  P.  Wilson. 
(Penzance,  Cur  now). 

TAB.  XXX.  A.  Pottia  crinita  (Aberdeen,  Dickie).  B.  P.  latifolia  (Clova,  Fergusson).  C. 
Tortula  pusilla  (Cheshire,  Wilson).  D.  T.  lamellata  (Oxford,  Boswell).  E.  T.  brcvi- 
rostris  (Ashwood  Dale,  George).  F.  T.  stellata  (Oxford,  Boswell).  G.  T.  ericcefolia 
(Oxford,  Boswell). 

TAB.  XXXI.  A.  Tortula  aloides  (Oxford,  Boswell).  B.  T.  atrovirens  (Barmouth,  Holt).  C. 
T.  cuneifolia  (Plymouth,  Holmes).  D.  T.  Vahlii  (Sussex,  Davies).  E.  T.  marginata 
(Shere,  Capron).  F.  T.  canescens  (Sussex,  Jenner).  G.  T.  muralis  (Croydon,  Braith- 
waite), ft.  var.  rupcstris,  y.  var.  tzstiva. 

TAB.  XXXII.  A.  Barbula  mucronata  (Surrey,  Braithwaite).  B.  Tort,  subulata  (Whitby, 
Braithwaite).  C.  T.  angustata  (York,  Spruce).  D.  T.  mutica  (Sussex,  Davies).  E. 
T.  papillosa  (Sussex,  Davies).  F.  T.  Icevipila  (Epsom,  George). 

TAB.  XXXIII.  A.  Tortula  montana  (Conway,  Wilson).  B.  T.  ruralis  (Kent,  Holmes).  C. 
T.  princeps  (Kirriemuir,  Fergusson).  D.  Pleurochcete  squarrosa  (Plymouth,  Holmes). 
E.  Mollia  crispa  (Betchworth,  Braithwaite).  F.  M.  rmilticapsularis  (Appleton,  Wil- 
son). G.  M.  Mittenii  (Hurst,  Mitten). 

TAB.  XXXIV.  A.  Mollia  rostellata  (Sussex,  Davies).  B.  M.  microstoma  (Gravesend,  Braith- 
waite), ft.  var.  obliqua.  C.  M.  squarrosa  (Cheshire,  Wilson).  D.  M.  condensa  (Ply- 
mouth, Holmes).  E.  M.  viridula  (Kent,  Braithwaite),  ft.  var.  amblyodon.  F.  M. 
rutilans  (Sussex,  Davies).  G.  M.  tennis  (Ashley,  Hunt). 

TAB.  XXXV.  A.  Mollia  calcarea  (Monsal-dale,  Holt),  ft.  var.  Viridula.  B.  M.  ceruginosa 
(Ben  Lawers,  Braithwaite).  C.  M.  verticillata  (Bangor,  Wilson).  D.  M.  crispula 
(Ormeshead,  Wilson),  ft.  var.  viridula,  y-  var.  elata,  5.  var.  nigro.viride.  E.  M. 
litoralis  (Penzance,  Curnow). 

TAB.  XXXVI.  A.  Mollia  brahcydontia  (Bristol,  Wilson),  ft.  var.  cophocarpa.  B.  M.  tenuirostris 
(Dolgelly,  Wilson),  ft.  var.  Daldinii,  v.  var.  Holtii.  C.  M.  hibernica  (Killarney,  Holt). 
D.  M.  flavovirens  (Penzance,  Curnow). 

TAB.  XXXVII.  A.  Mollia  nitida  (Plymouth,  Holmes).  B.  M.  inclinata  (Oxford,  Boswell). 
C.  M.  tortuosa  (Killarney,  Holt),  ft.  var.  dicranoidea,  y-  var.  angustifolia,  8.  var. 
fragilifolia.  D.  M.fragilis  (Ben  Laoigh,  Ewing).  E.  Leptodont,  flexifolium  (Witney, 


TAB.  XXXVIII.     A.  Leptod.  gemmascens  (Hurst,  Mitten).      B.  L.  recurvifolium  (Wales, 

C.  Mollia  lutescens  (Glena,  Lindberg).      D.  Barbula  curvirostris  (Wales,  W^'foow),  and 
var.  commutata. 

TAB.    XXXIX.      A.   Barbula  rubella  (Schiehallion,   Braithwaite),    ft-    var.   dentata,   y.  var. 
ruberrima.      B.    B.  lurida    (Wetherby,  WVs/fj).     C.  S.  brevifolia  (Southport,  Hunt). 

D.  B.fallax  (Eskdale,  Braithwaite),  ft.  var.  brevifolia.    E.  £.  w^a  (Malham,  P^^s^) 
j8.  var.  robusta. 


TORTULACE^E.]  287 

TAB.  XL.  A.  Barbula  spadicea  (Bolton  bridge,  Hunt}.  B.  B.  rigidula  (Cliviger,  Now  ell). 
C.  B.  acuta  (Durdham  Downs,  Thwaites).  D.  B.  cylindrica  (Bolton,  Hunt),  ft.  var. 
vinealis.  E.  B.  sinuosa  (Bangor,  Wilson). 

TAB.  XLI.  A.  Barbula  Hornschuchii  (Oxford,  Boswell).  B.  B.  revoluta  (Tring,  Braith. 
watte).  C.  B.  convoluta  (Shirley,  Braithwaite),  (3.  var.  sardoa.  D.  B.  unguiculata 
(Abbey  wood,  Braithwaite).  E.  Tortula  suberecta  (Norway,  Kiaer).  F.  Cinclidotus 
fontinaloldes  (Malham,  Braithwaite). 

TAB.  XLII.  A.  Leersia  alpina  (Ben  Lawers,  Wilson).  B.  Leersia  exstinctoria  (Addington, 
Braithwaite),  /3.  var.  pilifera,  S.  Leersia  alpina  var.  imberbis  C.  L.  laciniata  (Ben 
Lawers,  Braithwaite).  D.  L.  rhabdocarpa  (Largo,  Howie).  E.  L.  contorta  (Blair 
Atholl,  Wilson). 


TORTULACEJi. 


T  XXVII. 


, 


Ephetn.  recur -n folram. 


PhascuTTi   acaulon. 


Ephem.  intermednjm 


Ephem.  cohasrens. 


Acaulon  nmtic\im . 


1., 


Phase.  Floerkei. 


RJlraitkwaite,  iM..  <u.i  itjaL  .E  Carter  sr 


Mijitern  Hi;.-,  iiu/i 


TORTU1ACE/E. 


T  XXVHL 


Phase,  curvicolle. 


Pottra  "bry cades. 


Pottia  Heimn 


].     _,—  a, 

Pottia  tniTicaitula,. 


Pottia  intermedia. 


I I:  it    J 


RBwi.tlrwaxle  clel  iai  naj   £  Carter  sc 


Br  Moss  -Fl. 


TORTULACE^E. 


T  XXIX. 


l 

Pottia  lanceoiata. 


Pottia  csespitossL 


Pottaa-  aisperula. 


Pottia    Starkei. 


PctUa  vindifolia. 


6. 

Pottia  Wiisoni. 


lx 


Hfiratihwtnte  M.ad  not.  E .  Carter  St. 


Moss  -FL 


TORTUJLACE^E. 


TXXX. 


P  ottaa   crini  ta . 


PotUa    latifolia. 


Tortula..  lamella-ta. 


T  crt.  brevirostns 


Tortula  sbellata.. 


Tort,  encaefolia. 


It  liniithvfodt  del,  ad  not.  E  Carter  sc . 


TORTULACELE. 


T  XXXI. 


RBraithwite  ml  nut  ,itl  E  Carter 


XnternSros  imp 


-  HTMoss-Fl 


TORTULACE/E. 


T  XXXTI. 


BTMoss.H. 


TORTULACK/E. 


T   XXXIII. 


Tort,  montana. 


Tort,    rural  is. 


Tort,  pnnceps. 


PI  euro  cliaete     sg  uarr  o  s  a. 


Molli  a  en  sp  a, 


M.  Mittemi. 


Jbfintern  Bros  unp 


-  -BTMoss.-Fl. 


TORTUIwVOLE. 


T  XXXIV. 


Moll    rostellata.. 


Moll,  micro stoma 


Mollia    tortilis 


Mollia      vindxila 


mnt,-  .if/  uni.tlfl    E (\trter  : 


BTMoss-Tl 


TORTULACEJE. 


cac  are  a . 


Moll,   seruginosa. 


lab 


"Moll,    verticillata. 


litoralis 


,ul  nut.  M   £  Carter  sc 


.BrMoss-Fl 


TORTULACEyK. 


T.  XXXVI. 


"MoTHa  "brachvlontia. 


vc  -virems. 


Moll :  a,  ten  ui  re  tin  s . 


/,'   ,ul    li.ii    ,tt-l  .    /:'(', ll-fcr^ 


T  O  R  T  U  1A.CEJE . 


T.  XXXVff 


~          '^  !  \ 

TvTollia  tortuosa 


R  Bnnll,mnt4-  ,i,1  n,il.titl,    E Carter 


Nmtern  Bros  imp 


BrUbss  -El 


T.XXXVDI. 


TOTIULACE/E. 


T.  XXXDC 


" 


1  Tfr 


RJlrtvtJiwaiie  a,l  ,MI  del1    K  Carle 


.\finti-rri  Brcs    'Jlf 


Br.Moss-Fl. 


TORT  U  LACEl^E. 


T.   XL. 


Bar-tula    spadicea 


I 


lal. 


Ba:rb-ula  acaita 


lal 


Bartxila  smuosa 


R Bratfhwnitf  ad  mil  ifl'.    E  <;<;•(.-/ 


SrMoss.  Fl. 


TORTULACE.'E 


T.XLL 


ad  not  del    E  Carter  so 


TXLU. 


WEBERACE^ 


WEBERA.    EHRHART. 
Webera  sessilis   (SCHMID.)  LINDB. 


2QI 


WEBERACE^. 

Plants  very  short,  gregarious,  growing  on  turfy  soil.  Leaves 
lingulate  or  lanceolate,  nerved,  flexuose,  crisped  when  dry,  fragile,  with 
rounded  opaque  cells  in  2 — 3  strata.  Perich.  bracts  larger,  ciliate  or 
serrate,  aristate  with  the  excurrent  nerve,  membranous;  Caps, 
immersed  or  exserted,  subsessile,  ovoid,  oblique,  gibbous ;  calyptra 
conico-mitriform,  entire,  scarce  covering  the  conical  acuminate  lid  ; 
peristome  none,  endostome  a  pale  i6-plicate,  conical  membrane ; 
spores  minute. 

This  small  family  of  5  or  6  species  has  generally  been  united  to 
Buxbaumiaceae,  but  the  only  relationship  to  Buxbaiimia  lies  in  the  similarity 
of  the  capsule  and  endostome,  for  in  leaf  structure  it  comes  very  close  to 
Tortulacea?,  especially  to  the  section  Tortella  of  Mollia.  The  epicarpic 
membrane  is  thick  at  the  mouth  of  the  capsule,  but  all  the  rest  is  thin  and 
flaccid,  and  the  capsule  wall  stands  away  from  the  spore  sac,  being  connected 
with  it  by  short  filaments. 

Ehrhart's  name  must  certainly  be  retained  for  the  genus  and  not 
superseded  by  that  of  Mohr.  Three  years  later  Hedwig  applied  the  name 
Webera  to  another  genus,  comprising  Bartramia  pomiformis,  B.  Halleri  and 
Meesea  trichodes — Fund.  muse.  II,  95  (1782) — and,  apparently  forgetful  of  this, 
he  a  third  time  used  it  as  a  genus  of  mosses  for  Brytim  nutans  and  pyrifoyme 
in  his  Muse,  frond,  i,  (1787)  ;  repeating  this  in  the  Sp.  muscorum  (1801). 
But  in  these  two  latter  works  he  also  founded  a  genus  Pohlia  for  Bryum 
elongatum,  a  congener  of  B.  nutans,  and  Lindberg  has  very  cleverly  settled 
the  difficulty  by  maintaining  the  original  genus  Webeva  of  Ehrhart,  and 
transferring  the  third  genus  of  that  name  to  Pohlia  of  Hedwig. 

WEBERA   EHRHART. 

(Hann.  mag.  1779,  p.  257.) 

The  only  genus  and  therefore  the  character  is  the  same  as  that  of 
the  family. — Der.  After  G.  H.  Weber,  author  of  Spicil.  Fl.  Goettingens. 

WEBEEA  SESSILIS  (Schmid.)  Lindb. 

Dioicous  ;  dwarfish,  gregarious.  Leaves  lingulate,  entire,  with  the 
nerve  vanishing  ;  perich.  bracts  ovato-lanceolate,  laciniato-ciliate,  nerve 
longly  aristate.  (T.  XLIII.) 


WEBERACE^.]  292  [Weber  a. 

SYN. — Sphagnum  acaulon  maximum,  foliis  in  centra  ciliaribus  HALL.  It.  helv.  1739,  p.  83, 
c.  icone  (1740),  Enum.  stirp.  helv.  i,  97  (1742).  DILL.  Hist.  muse.  253,  t.  32,  f.  13 
(1741),  et.  Herbar. 

Buxbaumia  scssilis  SCHMID.  Diss.  de  Buxb.  26,  t.  2  (1758).  HEDW.  Fund,  ii,  96  (1782). 
HOFFM.  Deutsch.  fl.  ii,  21  (1795). 

Phascum  subulatum  Var.  (3.  HUDS.  Fl.  angl.  397  (1762). 

Phascum  subulatum  OEDER  Fl.  dan.  t.  249,  p.p.  (1766). 

Phascum  Halleri  F.  MUELL.  Fl.  fridrichs.  196  (1767).     POLL.  PI.  palat.  iii,  n.  974  (1777). 

Bryum  Halleri  NECK.  Meth.  muse.  233  (1771). 

Phascum  maximum  LIGHTF.  Fl.  scot,  ii,  693  (1777). 

Phascum  montanum  HUDS.  Fl.  angl.  2  ed.  466  (1778). 

Buxbaumia  foliosa  WEBER  Spic.  fl.  gott.  128    (1778).     SWARTZ   Meth.  muse.  33,  t.  4,  f.  2 

(1781),  Muse.  suec.  74,  t.  4,  f.  4  (1799).     L.   Syst.  veg.   14  ed.  925  (1784).     ROTH  Tent. 

fl.  germ,  i,  478   (1788).     WITH.   Bot.  arr.  br.  veg.  3  ed.  iii,  7go'(i796).     HULL  Br.  fl. 

P.    2,    276   (1799).     BRID.  Muse.   rec.   II,    P.    Ill,  150    (1803).     SM.  Eng.  Bot.  t.  329. 

Fl.  brit.  iii,  1148  (1804).     TURN.   Muse.  hib.  104    (1804).     SCHULTZ  Fl.  starg,  n.  355 

(1806).  ROEHL.  Deutsch.  fl.  iii,  120  (1813).    WAHLENB.  Fl.  carp.  363  (1814).    SCHWAEG. 

Suppl.  I,  P.  II,  65  (1816).     HUEBEN.  Muse.  germ.  540  (1833). 

Webera  Diphyscium  EHRH.  Hann.  mag.  1779,  p.  257.     Beitr.  i,  189  (1787). 
Bryum phascoides  JACQ.  Collect,  ii,  220  (1788.) 

Diphyscium  foliosum  MOHR  Obs.  bot.  34  (1803).  WEB.  MOHR  Bot.  Tasch.  377,1.  n, 
f.  i  (1807).  VOIT  Muse.  herb.  112  (1812).  BRID.  Sp.  muse.  Ill,  112  (1817),  Mant.  123 
(1819),  Bry.  univ.  i,  326  (1826).  MART.  Fl.  cr.  erl.  85  (1817).  HOOK.  TAYL.  Muse.  bi. 
16,  t.  8  (1818).  FUNCK  Moost.  37,  t.  24  (1821).  GRAY  Nat.  arr.  br.  pi-  i,  717  (1821). 
HOOK.  Fl.  scot.  P.  II,  124  (1821),  Br.  fl.  ii,  13  (1833),  Fl.  Lond.  HARTM.  Skand.  fl. 
MACK.  Fl.  hib.  P.  2,  12  (1836).  BR.  SCHIMP.  Bry.  eur.  fasc.  i,  t.  2,  et  fasc.  64,  Suppl. 
(1837).  DE  NoT-  Syll.  145  (1838),  Epil.  bri.  ital.  349  (1869).  RABENH.  Deutsch.  kr.  fl. 
ii,  S.  3,  240  (1848).  C.  MUELL.  Synops.  i,  812  (1849).  WILS.  Bry.  brit.  201,  t.  8 
(l855)-  JENs.  Bry.  dan.  t.  8,  f.  40  (1856).  SCHIMP.  Synops.  451  (1860),  2  ed.  547. 
BERK.  Handb.  br.  m.  214,  t.  19,  f.  5  (1863).  MILDE  Bry.  siles.  254  (1869).  HOBK. 
Syn.  br.  m.  99  (1873).  HUSN.  Mouss.  nord-ouest  138  (1873).  JURATZ.  Laubm.  oesterr.- 
ung-  351  (1882).  LESQ.  JAMES  Mosses  N.  Amer.  267  (1844). 

Hymenopogon  heterophyllum  P.  BEAUV.  Prodr.  60  (1805). 
Diphyscium  sessile  LINDB.  in  Oefv.  Vet.  Ak.  foerh.  xx,  303  (1863). 

Webera  sessilis  LINDB.  in  Op.  c.  394,  in  obs.  (1863)  et  xxi,  576,  in  nota  (1864)  ;  in  Not. 
saells.  pro  Fauna  et  fl.  fenn.  foerh.  ix,  157  (1867). 

Dioicous;  brown  or  blackish  green,  in  expanded  tufts.  Stems  very 
short,  radiculose ;  leaves  lingulate,  curled  when  dry,  chlorophyllose, 
thick,  of  three  strata  of  minute  rounded  hexagonal  cells  above,  narrowly 
rectangular  at  base ;  apex  concave,  obtuse,  the  margin  crenulate  with 
projecting  cells,  nerve  vanishing  below  apex.  Perich.  bracts  very  large, 
rufescent  at  base,  ovato-lanc.,  thin  and  membranous  without  chloro- 
phyl,  deeply  serrate  or  lacerate  and  ciliate  at  apex,  the  nerve  excurrent 
in  a  long  roughish  piliform  arista,  cells  quadrate  and  rectangular, 
hyaline,  with  incrassate  transverse  wails.  Caps,  immersed  in  the 
perichaetium,  pale  yellowish-brown,  leptodermous,  ventricosely  ovato- 
conic,  oblique  ;  mouth  small  with  an  annulus  of  a  single  series  of  cells  ; 
lid  conic,  acuminate,  peristome  none  or  represented  by  irregular  pro- 
jecting fragments  of  tissue ;  endbstome  a  white  membrane  twisted  in  a 
cone,  i6-carinato-plicate,  the  ridges  thickened  and  papillose ;  spores 
minute,  smooth,  green. 


WEBERACE^;.]  293  [Webera. 

Male  plants  short,  scattered,  the  infl.  gemmiform,  terminal,  inner 
bracts  ovate,  concave,  nerve  excurrent. 

HAB, — Turfy  banks  and  moist  rocks  in  mountain  districts  ;  not  uncommon. 
Fr.  8. 

Var.  /3.  acutifolia  Lindb. 

Plants   taller,    denser  and  more  branched ;  leaves   longer,    acuminate, 
acute,  arista  of  perich.  bracts  smooth. 

HAB. — With  the    type,    but    more    frequently   in  Ireland,   though   usually 
sterile.     Connemara  c.  fr.  (Moore  1853) !  I     Luggielaw  (Lindberg  1873) ! ! 


TAB.  XLIII. 

Webera  sessilis   (Ben    Lawers,  Braithwaite).      (3.  Var.   acutifolia  (Ireland, 
Lindberg). 

a.  Fertile,  b.  male  plant,  a*.  Fertile  pi.  mag.  i.  Leaf,  i  a.  apex,  i  ab.  areolation 
of  base,  i  x.  transv.  section.  2.  Perich.  bract.  3.  Male  infl.  4.  bract  and  anthe- 
ridia.  5.  Capsule.  6.  Spore  sac.  7.  Calyptra.  8.  Operculum.  9.  Endostome. 


WEBEHACELE. 


T.XT.TTT. 


HBnaJh.wu.tf  (d-  na.1  del .  E.Carter 


.Vrntfin  tins  m,/i. 


SUPPLEMENT. 


ANDEE^A  CRASSINERVIS  Bruch. 

Var.  (3  Huntii  (Limpr.) 

Plants  taller.     Leaves  longer   with   a   narrower   nerve  ;  perich.  bracts 
shorter,  obovate,  obtuse  or  apiculate. 
SYN.— A.  commutata  (non  C.  MUELL.)  LIMPR.  in  61  Jahresb.   der  Schles.  Ges.  221  (1883). 

A.  Huntii  LIMPR.  in  RABENH.  kr.  fl.  2  ed.  band,  iv,  145,  f.  55  (1886). 

HAB. — Loch    Kandor   (Hunt    1871)  !  !     Buttermere   and   Borrowdale    (Hunt 

1871)  !     Styehead  Pass  and  Scawfell  (Baker  1879)  !  ! 

Although  from  the  longer  slender  stems  with  laxer  leaves,  this  has  a 
distinct  appearance,  we  do  not  think  it  has  characters  sufficient  to  separate 
it  from  A .  crassinervis  ;  the  lamina  of  the  leaf  narrows  upward  and  vanishes 
more  gradually  than  in  that  species,  of  which  we  prefer  to  regard  it  as  a 
variety,  but  the  specimens  were  referred  by  Schimper  to  A .  falcata,  A  third 
closely  allied  plant  from  Steiermark,  is  named  by  Lindberg  A.  angustata. 

POLYTRICHACE^:. 

Catharinea  Dixoni  BRAITHW.  MSS.  DIXON  in  Journ.  Bot.,  1885, 
p.  169. 

This  species  must  be  erased  from  the  list,  as  it  proves  to  be  only  a  form 
of  Polytrichum  gracile  with  fewer  lamellae  than  usual. 

LEUCOBRYACE^E. 
2.  LEUCOBRYUM  MINUS  Hamfe. 

Dioicous  ;  resembling  L.  glaucum,  but  much  smaller.  Leaves  very 
dense,  narrower,  erect.  Caps,  oblong,  sub-erect,  nearly  regular,  not 
strumose.  (T.  XLV,  B.) 

SYN. — Bryum    albidum   et  glaucum  fragile    minus,    foliis   erectis,    setis  oblongis  DILL.   Hist. 

muse.  546,  t.  83,  f.  8  (1741)  et  Herbar. 
Dicranum   albidum    BRID.   Muse.   rec.  II,  P.  I,  167  (1798),  Sp.  muse.  I,  205  (1806),  Mant. 

muse.  67  (1819). 
Dicranum  glaucum  ft.  albidum  WEB.  MOHR.  BRID.  Bry.  univ.  i,  409  (1826). 


SUPPLEMENT.]  296 

Lencobryum  minus    HAMPE   MSS.  SULLIV.    Mosses   Un.   St.    24   (1856).     LESQ.   JAMES 
Mosses  N.  Amer.  gi  (1884). 

Leucobryum  vulgare  ft,  minus  HAMPE  in  Linnaa  xiii,  42  (1839).  C.  MUELL.  Synops.  i,  75 

(1849). 

Leucobryum  glaucum  ft,  minus  C.  MUELL.  Linnaa  1844,  p.  687. 
Leucobryum  albidum  LINDB.  in  Oefv.  Vet.  ak.  foerh.  1863. 

Dioicous  ;  in  dense  whitish  tufts,  f  in.  high.  Leaves  very  dense, 
thin,  narrow,  more  acuminate,  erect.  Caps,  obliquely  inclined,  nearly 
regular,  not  strumose. 

HAB. — On   sandy   hillocks  under  beech  trees  in  the  New  Forest,  at  Boldre 
Bridge  and  Holmsley  Station,  Lyndhurst.     (Pi/ard,  April,  1882) !  ! 

This  moss  was  distinguished  as  a  species  by  Dillenius,  and  seems  entitled 
to  rank  as  such  by  its  more  delicate  texture,  and  different  capsule.  Hitherto 
it  has  been  regarded  as  exclusively  American,  and  I  have  seen  no  other 
record  of  its  occurrence  in  Europe. 


DICRANACE.E. 

Subf.  2.  TREMATODONTE&.  Plants  small,  casspitose  ;  leaves  lanc.- 
subulate,  without  enlarged  basal  angular  cells.  Caps,  with  a  long  swollen 
neck,  longer  than  the  capsule  ;  per.  of  16  lanceolate  teeth,  perforated  in  the 
middle  or  cleft ;  sometimes  cleistocarpous. 


TREMATODON  Michx. 

RICH.  Fl.  bor.-Amer.  ii,  289  (1803). 

Plants  short,  csespitant.  Leaves  lane. -subulate,  nerved,  the  cells 
hexagono-rectangular,  perich.  bracts  distinct.  Calyptra  inflato-cucul- 
late,  rostrate;  caps,  on  a  tall  seta,  elliptic  or  oblong,  subcernuous, 
defluent  into  a  long  swollen  neck,  once  or  twice  as  long  as  caps.,  which 
is  oblong  and  gently  curved,  per.  of  16  lanceolate  teeth,  subentire, 
perforated  or  cleft  into  two  unequal  legs. — Der.  rprj^a  a  foramen,  oSovs 
a  tooth. 

i.   TREMATODON  AMBIGUUS  (Hedw.)  Hornsch. 

Autoicous ;  in  small  dense  tufts.  Leaves  from  an  ovate-oblong 
base,  suddenly  lane. -subulate,  nerve  excurrent.  Caps,  subclavate, 
subcernuous,  the  neck  of  equal  length,  teeth  perforated  vertically  or  cleft 
into  two  unequal  legs.  (T.  XLV,  C.) 

SYN. — Dicranum  ambiguum  HEDW.  Muse,  frond,  iii,  87,  t.  36  (1792),  Sp.  muse.  150  (1801). 
BRID.  Muse.  rec.  II,  P.  I,  180  (1798),  Sp.  muse.  I,  222  (1806).  SWARTZ  Muse.  suec.  36 
(1799).  ROTH  Fl.  germ,  iii,  P.  I,  169  (1800).  P.  BEAUV.  Prodr.  53  (1805).  WEB.  MOHR 
Bot.  Tasch.  195  (1807).  STURM  Deutsch.  fl.  II,  8.  SCHWAEG.  Suppl.  I,  P.  I,  194 
1811).  ROEHL.  Deutsch.  fl.  iii,  75  (1813).  MART.  Fl.  cr.  erl.  106  (1817). 


SUPPLEMENT.]  297 

Trematodon  ambiguus  HORNSCH.  Flora  1819,  p.  88 ;  Bry.  germ,  ii,  P.  II,  206,  t.  43,  f.  2 
(1831).  BRID.  Mant.  52  (1819).  FUNCK  Moostach.  20,  t.  19  (1821).  SCHWAEG. 
Suppl.  II,  P.  I,  69  (1823).  HUEBEN.  Muse.  germ.  149  (1833).  DE  NOT.  Syllab.  223 
(1838),  Epil.  bri.  ital.  663  (1869).  HARTM.  Skand.  fl.  BR.  SCHIMP.  Bry.  eur.  fasc. 
29—30,  p.  5,  t.  2  (1846).  RABENH.  Deutch.  kr.  fl.  ii,  S.  3,  135  (1848).  C.  MUELL. 
Synops.  i,  457  (1849).  SCHIMP.  Synops.  67  (1860),  2  ed.  68.  MILDE  Bry.  siles.  56 
(1869).  JURATZ.  Laubm.  oesterr.-ung.  29  (1882).  HOBK.  Syn.  br.  m.  2  ed.  65  (1884). 
LESQ.  JAMES  Mosses  N.  Amer.  63  (1884). 

Trematodon  vulgaris  BRID.  Bry.  univ.  i,  386  (1826). 

Autoicous ;  in  small  dense  tufts,  pale  green  or  fuscescent ;  stems 
short,  branched,  radiculose  at  base.  Leaves  erecto-patent.  flexuose,  from 
a  concave  ovate-oblong  base,  suddenly  lanceolate-subulate,  canaliculate, 
entire ;  nerve  semiterete,  excurrent  in  the  subula,  cells  at  base  narrow 
rectangular,  above  rhombic  or  hexagonal ;  perich.  bracts  much  larger, 
elongate-oblong,  gradually  acuminate,  laxly  areolate  at  base.  Caps,  on 
a  long  flexuose  straw-coloured  seta,  oblong,  straw-coloured  or  orange- 
brown,  the  neck  cylindric,  long  as  capsule,  subarcuate,  tumidly  stru- 
mose,  the  base  abrupt  at  the  inner  side ;  annulus  broad,  lid  conic, 
subulate  rostrate  ;  teeth  confluent  at  base  on  an  exserted  membrane, 
cleft  into  two  unequal  legs,  or  perforated  in  the  middle  line,  red, 
incurved  when  dry.  Male  infl.  terminal  on  a  basal  branch,  bracts 
small,  ovate  convolute,  acuminate,  nearly  nerveless. 

HAD. — Bare  wet  turfy  places  in  subalpine  districts ;  very  rare.     Fr.  7 — 8. 

In  a  path  at  base  of  Schiehallion,  near  Tummel  bridge,  Perthshire   (Braithwaite  and 
Crombie,  1883)  ! ! 

The  species  of  this  beautiful  genus  are  remarkable  for  the  long  neck  to 
the  capsule  which  gives  the  fruit  a  peculiar  club-shaped  appearance.  Only 
a  single  tuft  was  found,  and  that  was  growing  in  the  centre  of  a  patch  of  the 
rosy  red  form  of  Byy um  pattens.  The  genus  Bruchia  also  belongs  to  this  sub- 
family. 

BLINDIA. 
3.  BLINDIA  TRICHODES  (Wils.)  Lindb. 

Dioicous  ;  in  small,  bright  green  tufts.  Leaves  more  or  less  secund, 
from  an  oval  concave  base,  longly  subulate.  Caps,  hemispherical,  with 
short  truncate  teeth.  (T.  XLV,  D.) . 

Svx.—Dicranum  trichodes  WILS.  MSS. 

Blindia  acuta  Var.  trichodes  BRAITHW.  in  Journ.  Bot.  1870,  p.  228. 
Blindia  trichodes  LINDB.  PHILIB.  in  Rev.  bryol.  1884,  p.  90. 

Dioicous  ;  small,  in  bright  green  or  yellowish  green  tufts,  fuscescent 
at  base.  Leaves  more  or  less  secund,  lower  short,  upper  much  longer, 
from  a  shortly  oval  concave  base,  longly  subulate,  the  subula  formed 
entirely  of  the  nerve,  canaliculate,  denticulate  at  apex,  three  times  the 


SUPPLEMENT.]  298 

length  of  limb.  Seta  short  and  pale,  caps,  hemispherical,  greenish 
straw-colour,  when  old  turbinate,  lid  pale,  long  subulate,  per.  bright  red, 
the  teeth  short  truncate,  of  only  3— 4  rectangular  articulations,  smooth, 
sometimes  foraminate.  Male  plants  in  separate  tufts,  much  smaller 
than  female,  bracts  ovato-lanceolate. 
HAB. — Wet  shaly  rocks  ;  sterile. 

Entwistle,  near  Bolton  (Scholcfteld,  1863)!!  Egerton,  Cheshire  (Whitehead,  1865)! 
Astley  chapel,  near  Bury  (Dr.  Wood,  1864)  !  Green's  clough,  Todmorden  (Nowell, 
1867) !  !  Marsden,  near  Burnley  (Whitehead,  1865)  ! !  Bamford  Wood  (Holt,  1878)  !  ! 
Ramsden  clough  and  Gorple  clough,  Todmorden  (Holt,  1880)  ! ! 

Very  close  to  B.  acuta  and  resembling  it  in  areolation,  but  in  the  latter 
the  lamina  narrows  more  gradually  and  runs  up  to  the  middle  of  leaf ; 
the  nerve  is  rounder  and  more  rigid,  and  the  tufts  are  generally  black  at 
base.  It  has  also  been  found  in  Madeira  and  the  Caucasus,  and  with 
fruit  in  the  Riesengebirge,  and  in  Corsica  by  Philibert,  but  these  are  only 
i  the  height  of  British  specimens. 


CAMPYLOPUS. 
CAMPYLOPUS  ATROVIRENS. 

Var.  y.  epilosus  Braithw. 

Plants  more  slender,  with  softer  narrower  more  patent  leaves,  the  attenu- 
ated subula  without  any  hyaline  point. 

HAB.— Dingdong  moor,    Penzance  (Marquand  1883)  !  !      Isle  of  Man  (Holt   1881).     Tyn-y- 
groes  (Holt  1882). 

Another  moss  of  this  genus  from  Jersey,  is  referred  by  Mr.  Boswell  with  a 
?  to  Campylopus  adustus  DE  NOT.  of  which  we  have  no  specimens  for  com- 
parison. We  have  little  doubt  however  that  the  Jersey  plant  is  a  form  of 
C.  introflexus,  with  the  hair-points  very  short  or  altogether  wanting. 

CAMPYLOPUS  SUBULATUS. 
Var.  /?.  elongatus  Bosw. 

In  wide  dense  pale  yellowish-green  tufts.  Stems  tall,  slender  I — 2  in.  long, 
radiculose  at  base.  Leaves  more  distant,  of  thinner  texture,  with  a  more 
elongated  subula. 

SYN. — Campylopus  brevifolius  Var.  elongatus  Bosw.  in  Naturalist  1883,  p.  28. 
HAB. — Banks  of  the  Wye  near  Builth  (Boswell  1883). 

The  aspect  of  this  moss  is  very  different  from  the  ordinary  state,  and  this 
may  be  greatly  due  to  the  locality  in  which  it  was  found,  for  the  stems  show 
3  years  growth  and  are  full  of  fine  sandy  deposit  from  the  river  ;  it  is  probable, 
therefore,  the  elongation  of  the  stem  is  due  to  an  effort  of  the  plant  to  escape 
suffocation. 


SUPPLEMENT.]  299 

CAMPYLOPUS  PARADOXUS. 

This  has  turned  up  in  several  localities,  and  in  such  varied  forms  that  it  is 
clear  it  must  be  reduced  to  a  variety  of  C.  fle.vuosus. 

8.*    DICRANUM  UNDULATUM  Ehrh. 

Dioicous ;  robust,  densely  tomentose.  Leaves  from  a  broad  base, 
lineal-lanceolate,  strongly  undulate,  coarsely  serrate  at  margin  and  in 
two  rows  at  back  of  nerve.  Caps,  aggregate,  oblongo-cylindric, 
arcuate  ;  lid  with  a  long  subulate  beak. 

SYN. — Dicranum  undulahim  EHRH.  PL  crypt,  exsicc.  n.  271  (1792).  STURM.  Deutsch.  Fl.  II. 
10.  VOIT  Muse.  herb.  87  (1812).  MART.  Fl.  cr.  erl.  97  (1817).  HUEBEN.  Muse, 
germ.  239  (1833).  DE  NOT.  Syllab.  211  (1838),  Epil.  bri.  ital.  615  (1869).  BR.  SCH, 
Bry.  eur.  fasc.  37-40,  p.  t.  34-35  (1847).  RABENH.  Deutsch.  kr.  fl.  ii,  S.  3,  148  (1848). 
C.  MUELL.  Synops.  i,  355  (1849).  SCHIMP.  Synops.  94  (1860),  2  ed.  97.  MILDE  Bry. 
siles.  74  (1869).  HUSN.  Mouss.  nord-ouest,  55  (1873).  JURATZ.  Laubm.  oesterr.-ung. 
50  (1882).  LESQ.  JAMES  Mosses  N.  Amer.  76  (1884).  LIMPR.  in  RABENH.  kr.  fl.  2  ed. 
346  (1887). 

Bryum  rugosum  HOFFM.  Deutsch  fl.  ii,  39  (1795). 

Dicranum  rugosum  BRID.  Sp.  muse.  I,  175  (1806),  Mant.  57  (1819),  Bry.  univ.  i,  414(1826). 
ROEHL.  Deutsch.  fl.  iii,  67  (1813). 

Dicranum  poly setum  SWARTZ  Muse.  suec.  34  and  87,  t.  3,  f.  5  (1799).     SCHWAEG.  Suppl.  I, 
P.  I,  165,  t.  41  (1811). 

Dioicous ;  loosely  tufted,  ascending,  glossy,  bright  green  above, 
pale  fuscous  below.  Stems  2 — 10  in.  high,  coated  nearly  to  apex  with 
dense  pale  rufous  tomentum  ;  branches  few,  dichotomous.  Stem  leaves 
squarroso-patulous,  the  terminal  erect,  falcato-secund,  from  a  broad 
oblong  base,  narrowly  lineal-lane.,  more  or  less  plicate,  strongly  undulate 
transversely,  complicato-concave,  the  margin  revolute  below,  coarsely 
and  sharply  serrate  above,  nerve  narrow,  flattened,  vanishing  in  the 
attenuated  apex,  bilamellate  at  back,  the  upper  f  with  two  divergent 
rows  of  coarse  teeth  ;  the  basal  angular  cells  large,  orange,  quadrato- 
hexagonal,  upper  linear,  narrow,  elongated.  Perich.  bracts  very  broad, 
convolute  in  a  lax  cylinder,  prolonged  into  a  ligulate  flexuose  subula, 
coarsely  serrate  above,  the  nerve  obsolete.  Caps,  on  a  pale  red  seta, 
2 — 6  aggregated  in  one  perichaetium,  oblongo-cylindric,  arcuate,  lid 
long  as  caps,  conic  with  a  long  pale  subulate  beak ;  annulus  simple, 
teeth  large,  deep  red.  Male  gemmaceous,  nestling  in  the  tomentum. 

HAB. — Shady  sandy  woods  and  turfy  heaths.     F.  7 — 8. 

Moorland  near  Wolford,  Stour  valley,  Warwick,  sterile  (Bagnall,  May  3Oth,  1887)  !  ! 

It  is  with  great  pleasure  that  at  the  last  moment  I  am  able  to  insert  this 
interesting  discovery  by  my  valued  friend,  Mr.  Bagnall,  for  it  seemed  strange 
indeed  that  a  plant  common  through  all  Eiirope  and  N.  America  should  be 


SUPPLEMENT.]  300 

wanting  here,  yet  its  rarity  with  us  is  certain,  or  so  conspicuous  a  plant 
would  before  this  have  rewarded  our  numerous  collectors.  The  strongly 
undulated  leaves,  and  serrate,  bilamellate  nerve  at  once  distinguish  it.  I 
hope  to  give  the  figure  of  it  in  the  Supplement  to  the  next  volume. 


DICHODONTIUM  PELLUCIDUM. 

Var.  y.  strictum  Braithw. 

Stems  elongated,  densely  tufted,  straight,  slender,  fastigiate.  i£  in.  high. 
Leaves  distant,  very  short,  at  the  middle  suddenly  narrowing  with  incurved 
margins,  and  tapering  upward  into  an  obtuse  scarcely  denticulate  point. 
(T.  XLV,  F.) 

HAB. — Among   short  grass,  Blorenge  mountain,  near  Abergavennv   (Mitten 
1883) ! ! 

The  short  leaves  and  close  straight  stems  give  this  moss  an  aspect  widely 
different  from  that  of  the  type,  with  which  however  it  quite  agrees  in  cell 
structure. 


ONCOPHORUS  (SECT.  RHABDOWEISSIA). 
9.  ONCOPHORTTS   CRENULATUS  (Mitt.)  Braithw. 

Autoicous  ;  in  taller  lax  soft  tufts.  Leaves  patent,  ligulate,  obtuse, 
crenulato-serrate  in  upper  half,  nerve  vanishing  at  apex,  upper  cells 
lax,  subquadrate,  Caps.  oval.  (T.  XLV,  E.) 

SYN. — Rhabdoweissia  denticulata  WILS.  in  Kew  Journ.  Bot.  ix,  293  (1857). 
Didymodon  crenulatus  MITT.  Journ.  Linn.  Soc.  i,  Suppl.  23  (1859). 

Autoicous;  loosely  caespitose,  more  robust  than  One.  crispatus, 
k — i  in.  high,  dull  green,  dichotomous.  Leaves  lax  patent,  flaccid, 
ligulate,  obtuse  or  pointed,  flattish,  recurved  at  apex,  crenulato-serrate 
from  middle  to  apex,  nerve  vanishing  below  the  point,  basal  cells  hyaline, 
elongated,  upper  rounded-quadrate,  sub-obscure  with  the  primordial 
utricle.  Perich.  bracts  similar.  Caps,  on  a  short  yellow  seta,  rufous? 
oval,  sulcate  when  old,  lid  rostrate,  teeth  red,  narrow,  erect  when  dry. 

HAB.— Wet  rocks.     Fr.  6—7. 

Lochgoil  head  and  Ben  Voirlich  (Hunt  1865)  !  !  Beddgelert  (Hunt  1865)  !  !  Abergynalwyn 
(Rogers  1879)  !  !  Pont  Aberglaslyn  (Mitten).  Cwm  Bychan  and  Tyn-y-Groes  (Holt 
1883)!  ! 

This  was  confused  with  O.  crispatus  both  in  description  and  figure,  the 
leaves  are  much  broader  than  in  that  species,  and  the  upper  cells  half  as 
large  again.  The  figures  O.  c.  are  drawn  from  O.  crispatus. 


SUPPLEMENT.]  301 

TORTULACE^. 
3.  ACAULON  MEDITEERANEUM 

Autoicous  ;  resembling  A.  muticum,  but  more  slender,  inner  perich. 
bract  very  large,  convolute,  entire.  Caps,  minutely  apiculate,  spores 
nearly  smooth.  (T.  XII,*  I.) 

SYN. — Acaulon  mediterraneum  LIMPR.  in  RABENH.  krypt.-fl.  von  Deutschl.  4  Band,  180  (1886). 

Autoicous ;  pale  yellowish  green,  in  caespitose  patches ;  plants 
more  slender  and  conical.  Leaves  short  broad,  entire,  nerved  to  apex, 
upper  cells  smaller,  rhombic.  Perich.  bracts  two,  unequal,  innermost 
very  large,  oblong,  convolute  and  enfolding  the  fruit,  with  a  short  flat 
acute  point,  quite  entire  or  with  2 — 3  short  irregular  teeth,  nerved  to 
apex ;  outer  f  as  long,  obovate,  acute,  the  margins  involute.  Caps, 
erect,  reaching  to  middle  of  inner  bract,  globose,  leptodermous,  cas- 
taneous,  minutely  apiculate  ;  spores  nearly  smooth. 

HAB.— Top  of  a  hedge-bank  at  Douglas,  I.  of  Man.     (Holt  Oct.  1886) !  ! 

Although  very  close  to  A.  minus,  this  little  moss  has  a  different  aspect, 
from  the  longer  inner  bract,  completely  wrapped  round  the  fruit,  and 
narrowing  upward,  the  plants  also  are  somewhat  glossy  and  curve  to  one 
side  and  are  taller  than  those  of  A .  muticum. 

MOLLIA   MICROSTOMA. 

Var.  y.  elata  (Scliimp.) 

Elongated,  densely  tufted  ;  caps,  minute,  subglobose,  not  reaching  the 
tops  of  the  innovations. 

Svx.—Hymenostomum  microstomum  c.  datum  BR.  SCH.  Bry.  eur.  SCHIMP.  Synops.     2  ed.  34. 
HAB.— Wet   rocks.     Janets   cave,    Malham   (Holt   1885) !  !      Settle    (Burgess 

1886) ! ! 

Sterile  tufts  i*  in.  high,  apparently  referable  to  this  variety,  though 
it  is  difficult  without  fruit  to  distinguish  from  M.  viridnla  var.  densifolia. 

TAB.   XLV. 

A.  Polytrichum  gracile.  B.  Leucobryum  minus  (New  Forest,  Piffard).  C.  Trematodon 
ambiguus  (Tummel  Bridge,  Braithwaite).  D.  Blindia  trichodes  (Bolton,  Schole -field) . 
E.  Oncophorus  crenulatns  (Loch  Goil,  Hunt).  F.  Dichodontium  pellucidum  var.  strictum 
(Abergavenny,  Mitten). 

a.  Fertile.  c.  sterile  plant.  i.  leaf.  laa.  Areolation  of  apex.  jab.  Do.  of  base. 
2.  Perich.  bracts.  3.  male  infl.  4.  bract  and  antheridia.  5.  capsule.  6.  calyptra. 
8.  peristome.  10.  annulus. 


Er.Moss-FL. 


T.  XLV 


i-VV 

Treina-todcm.  ambig-gns 


O.cl 

Onecrphorus  crenula,tu.s. 


tuL  lUtJ,,  del  JT.  Carter  sc. 


ADDENDA. 


Andrecea  Rothii.     Isle  of  Man  (Holt  1881).     Macgillicuddy's  reeks  (Stewart  and  Holt   1885). 
Var.  hamata.     Injebreck,  I.  of  Man  (Holt  1881). 


—  crassinervis.     Cromaglown  (Stewart  and  Holt  1885). 


Bnxbanmia  aphylla.     Ogden   Clough   (Hanna,    Wood  and    Whitehead).     P.    28   and  29.     For 
paroicous  read  autoicous. 

Georgia  Brownii.     Rocks  by  R.  Aray,  Inverary  (Borrer  1810).    Ben  Laoigh  (Holt  1880).    Hagg 
beck,  Kilton  and  Saltburn  (R.  Barnes  1886). 

Catharinea  crispa.     Staley  brushes  (Whitehead  1859). 

•  angustata.     Wickham  Bishops,  Essex  (Dixon  1884,  St.). 

Polytrichum  aloides  var.  Dicksoni.     Lound  and  Fritton,  Suffolk  (Rev.  E.  N.  Bloomfield).     Dela- 
mere,  Cheshire  (Holt  1880). 

Polytrichum  strictum.     Kinder  Scout  (Whitehead  and  Holt).     Hutchmere,  Cheshire,  I.  of  Man 
and  Cwm  Bychan  (Holt). 

—  commune  var.  fastigiatum.     I.   of  Man    and   Delamere    (Holt).      Harleston    firs, 
Northants  (Dixon). 


var.  minus.  I.  of  Man,  Delamere  and  Hale  moss  (Holt). 


P.  77,  for  T.  XI,  D.  read  T.  XII,  A. 

Pleurldium  alternifoliinn .     Barmouth    (Whitehead).     Hatherley,     Cheshire     (Whitehead    and 
Scholefield). 

Ditrichumhomonialluin.      Joyden's  wood,  Kent  (George).     Halstead   (Holmes).     Strome  ferry 
(Dixon  1883).     Carlingford  Mtn.  Down  (Holt). 

P.  100,  Weissia  zonata  add  NEES  HORNSCH.  Bry.  germ,  ii,  P.  II,  123,  t.  35,  f.  33. 
Ditrichum  subulatum.     Bickleigh  Vale  and  Tamerton  Ffolliot,  Devon  (Holmes). 
Dicranella  crispa.     Ashley  mill  (Holt  1884). 

—  curvata.     I.  of  Man  (Boyd  1886). 

—  heteromalla  ft,  stricta.     Anglesey  Mtn.  Co.  Louth  (Rev.  C.  Waddell  1883). 
sectmda.     Trecrobleen  hill,  W.  Cornwall  (Marquand  1880)  !  ! 

Anisothecium  rubrum   ft.   tenuifolinm.      Larne,  Antrim    (Stewart    1876).      Ryde  (Cockshoft). 

Ashley  mill  (Holt  1883).     Nassington,  Northants  (Dixon  1885). 
£.    callistomnm.       Ashley   mill    and   by    R.    Bollen,    Manchester    (Holt 

1884) !  !     Ashwood  dale  (Holt). 
crispum  ft,  datum.       Stirrup  wood,    c.    fr.    (Whitehead   1859).      Kersal     moor 

(Wild  1879).     Bamford  wood   (Holt  1881).    Cotterall   (Holt  1882).     Hagg  beck  and 

Guisbro'  beck,  Cleveland  (R.  Barnes  1886). 

Seligeria  Donii.    Ashwood  dale,  Ravensdale  and  Monsal  dale  (Holt  1880). 

acutifolia  ft.  loiigiseta.     Ravensdale  and  Taddington  dale  (Holt  1884). 

trifaria.     Castleton,  Derby  (Rogers  and  Cunliffe  1881). 

paucifolia.     Tunnel  wood,  Watford  (Holmes   1883)!  !     Morants  Court  hill  (Jenner). 

Kemsing  and  Boxley  hill,  Maidstone  (Holmes).     Between   Dartford  and  Darenth  wood 
-  (Holmes):     Undercliff,  Folkestone  (Holmes.) 

calcarea.     Taddington  dale,  Derby  (Holt  1882). 


ADDENDA.]  .     304 

Brachydontium   trichodes.      Clogwyn-du-Arrdu   (Holt    1883).       Kilton    woods    and    Raltburn, 

Cleveland  (R.  Barnes  1886)  !  I 

Didymodon  demidatus,  c.  fr.     Tyn-y-groes  (Holt  1885)  !  ! 
Campylopjis  Schwarzii.     Cader  Idris  (Holt  1882).     Adara,  Donegal  (Holt). 

setifolius.     Monk's   dale,   Derby  c.  fr.    (Prof.  Barker    1883).       Tyn-y-groes  (Holt 


1885).     Benan,  Galway  (Holt).     Slieve  Snacht  west  (Moore). 

introflexus.     Gap  of  Dunloe  (Stewart  and  Holt  1885). 

atrovirens  ft.falcatus.     Loch  Coruisk,  Skye  (Dixon  1883). 

flcxnosus  ft.  paludosus.     Boswarva  moor,  Penzance  (Marquand 


Dicranum  molle.     Ben  Laoigh,  Perth  (Ewittg  1885) !  !     Ben  Challum  (Binstead  1885). 

Bergeri.     Graden  moss,  Roxburgh  (Boyd  1872)  !  ! 

spurium.     Roborough  down,  Devon  (Holmes). 

Dicranum  fuscescens  ft.  falcifolium.     Staley  brushes  (Whitehead). 

elongatum.     Summit  of  Hedgehope,  Cheviots  (Hardy),  Ben  Attow,  Ross  (Dixon,  1883). 

Scottii.     Chiddingstone  and  Fisher's  Castle,  Kent  (Holmes).      Mangerton   and  Tore 

cascade  (Holt  and  Stewart,  1885)  '  • 

Dichodontium  flavescens.     R.  Avon  below  Diptford  (Holmes).      Lydford  cascade  (Marquand). 

Hagg  beck,  Kilton  and  Liverton;  Cleveland  (R.  Barnes,  1886). 
Oncophorus  polycarpus.     Dartmoor. 
Bruntoni.     Rusthall   common   and   near    Tunbridge  Wells    (Holmes).      Buckland 

beacon,  Lustleigh    and  Pew   Tor    (Marquand).      Braid    woods,    Edinburgh  (Lawson). 

I.  of  Man  (Holt). 

Ceratodon  conicus.  North  wall  and  Howth,  Dublin  c.  fr.  (Lindberg.  1873)  !  !  Dalwhinnie, 
Inverness,  c.  fr.  (Dixon,  1883)  !  !  Duston  and  Kingsthorpe,  Northants,  c.  fr.  (Dixon, 
1885)  !  ! 

Ephemerum  stenophyllum.  Limpricht  in  Rabenh.  krypt. — fl.  2  ed.  p.  169,  points  out  that  this 
moss  must  stand  as  Eph.  sessile,  the  Phascum  stenophyllum  of  Voit  and  of  the  Bryologia 
germanica  really  belonging  to  Eph.  recurvifolium  ( DICKS.).  BOULAY  muse,  de  Pest  694 
(1872). 

Phascum  Floerkei.     Morant's  court  hill  (Holmes,  1886)  !  !    Cambridge  (Dixon). 

curvicolle.     Morant's   court  hill   and   Westerham   (Jenner).      Greenhithe   (George). 

Folkestone  (Holmes).     Gogmagogs,  Cambridge  (Dixon). 
Pottia  Starkei.     Pembury    Road,    Tunbridge    (Jenner,    1848).      Greenhithe    (George).     Ryde 

(Cockshott,  1885). 

ccespitosa.     Between  Otford  and  Kemsing  (Holmes). 

latifolia.     Glen  Beg,  Perth  (Swing,  1886). 

crinita.     Southwold,  Suffolk  (Dixon). 

Tortula  stellata.  Boxley  hill,  Kent  (Holmes.)  Hyde,  Cheshire  (Scholejield).  Romiley 
(Whitehead). 

ericcefolia.     Greenhithe    and    Dunton    Green,    Kent    (Holmes).       Northampton    and 

Kingsthorpe  (Dixon). 

aloides.       Tunbridge.      Greenhithe    (George).       Folkestone,    Otford    and    Maidstone 

(Holmes).     Saltburn  and  near  Marske  mill,  Cleveland  (R.  Barnes  1886).     Kingsthorpe 
and  Wansford,  Northants  (Rogers). 

cuneifolia.     Hopton  and  Belton  common,  Suffolk  (Eagle). 


canescens.     Radnorshire   (Rev.  J.  Fergusson,  April   1882)  !  !     Glen   Shee,  Clova  (Rev. 

y.  Fergusson,  March  1883) !  !     Turfy  wall-top,  Penlee,  E.  Cornwall  (Rev.  A.  Ley  1887). 

angustata.     Naseby  and  Sibbertoft,  Northants  (H.  V.  Dixon  1880)  !  ! 

papillosa.     Hothfield  Park,    Postling   and    Lympne,    Kent    (Holmes).     Wickham    and 

Witham,  Essex  (Dixon). 
ruralis  ft.    arenicola.      Barbula    ruraliformis   BESCH.     BOULAY    Muse,    de   Test    404. 

HUSN.   Muscol.   gall.   115,^.33.     North   wall,   Dublin    and   Ventry  (Lindbcrg  1873)!! 

Penzance  (Curnow). 
rinceps.     Ben  Evenagh,  Derry  (Stewart  1885). 


Pleurochate  squarrosa.     Deal  (Mitten).     Sandwich  and  New  Romney,  Kent   (Holmes).     Carbi? 
bay,  Cornwall  (Marquand  1883). 


ADDENDA.]  305 

Mollia   turtilis.       Lindberg  points    out    that    Gymnostomum  condensnm    of    Voit,    published 

the  same  year  as  G.   tortile  of  Schwaegrichen,  must  truly  have  priority,  as  the  latter 

author  cites  Voit's  name  as  a  synonym.     The  beautiful  figure  of  Voit  is  also  far  better 

than  that  of  Schwaegrichen. 
—  tennis.     Duston,  Northants  (Dixon).    Kilton,  Liverton  and  Hagg  beck  (R.  Barnes  1886). 

viridula  <5.  dcnsifolia.     Tyn-y-groes  (Holt  1885). 

crispula  c).  nigro-viridis.     Monk's  dale  (Holt  1886). 

litoralis.     Hagg  beck  wood,  Kilton  and  Easington,  Cleveland  (R.  Barnes  1887). 

tenuirostris.     Kintail,  Ross,  c.  fr.  (Dixon  1883). 

flavo-vircns.     Dover  cliff  (Howse).     Deal  and  Romney  marsh  (Holmes). 

inclinata.      Newlyn  cliff  and  Lamarna  (Curnow  1872).     Staddon  heights  (Holmes  1867). 

Peel,  I.  of  Man  (Holt  1884). 
Barbnla  brevifolia.     Lane  near  Rusthall  common  and  Romney  marsh  (Holmes).     Rochester 

(Howse).     Bullingdon  bog,  Witney  (Boswell).     Northampton  (Dixon). 
fallax   y.    brevifolia.      Kemsing  and   Wye,    Kent    (Holmes).       Duston,    Northants 

(Dixon}.     Pepperstock,  Beds.  (Saunders). 
cylindrica.     Great   Glemham,    Suffolk    (Eagle).       Tring  and   Greenhithe    (Holmes). 

Lydford  (Marquand). 

sinuosa.     Sevenoaks,    Brastead,   Otford  and  Hythe  (Holmes).     Bush  mills,   Naseby 

Croughton  and  Houghton,  Northampton  (Dixon). 


INDEX. 


PAGE 

PAGE 

Acaulon  C.M  

187 

fallax  Hedw. 

.  XXXIX. 

264 

mediterraneum  Limpr.  .        .  T.  XII.* 

301 

Var.  brevicaulis 

265 

muticum  (Schreb.)  C.  M.       .  XXVII. 

187 

brevifolia    .         . 

— 

Var.  minus. 

188 

Hornschuchii  Schultz.  . 

XLI. 

271 

triquetrum  (Spruce)  C.  M.     .        — 

1  88 

lurida  (Hsch.)  Lindb.    . 

.XXXIX. 

262 

Andreaea  Ehrh  

4 

mucronata  Brid.   . 

.  XXXII. 

218 

alpina  Sm  I. 

IO 

reflexa  Brid. 

265 

Var.  compacta   . 

ii 

Var.  robusta 

266 

•  flavicans     . 

ii 

revoluta  (Schrad.)  Brid. 

XLI. 

272 

crassinervis  Bruch. 

rigidula  (Hedw.)  Mitt. 

XL. 

267 

Var.  Huntii. 

295 

rubella  (Hoffm.)  Mitt. 

.  XXXIX. 

260 

nivalis  Hook.          ...            II. 

15 

Var.  dentata 

261 

Var.  fuscescens  . 

16 

ruberrima  . 

. 

— 

petrophila  Ehrh.    ...              I. 

6 

sinuosa  (Wils  ) 

XL. 

270 

Var.  homomalla 

8 

spadicea  Mitt. 

. 

266 

acuminata  . 

unguiculata  (Huds.)  Hedw. 

XLI. 

274 

flaccida 



Var.  cuspidata   . 

275 

sylvicola     . 



apiculata  . 

. 

-  — 

gracilis 

9 

microcarpa 

276 

—  alpestris     . 

obtusifolia 

— 

—  sparsifolia  . 



fastigiata  . 

— 

Rothii  W.  M.         .        .        .           II. 

12 

Blindia  Br.  Sch. 

123 

Var.  frigida 

I3 

acuta  (Huds.)  B.  S. 

.      XVII. 

124 

—  hamata 

I4 

caespiticia  (Schw.)  Lindb. 

. 

123 

falcata 

trichodes  (Wils.)  Lindb. 

XLV. 

297 

Anisothecium  Mitt. 

no 

Brachydontium  Bruch 

. 

122 

crispum  (Schreb.)  Lindb.       .        XVI. 
Var.  elatum 

"3 

114 

trichodes  (W.  M.)  Fucrn. 
Buxbaumia  Hall. 

XVII. 

21 

Grevillei  (B.  S.)  Lindb.         .       XVI. 
rubrum  (Huds.)  Lindb. 
Var.  tenuifolium 

"3 
no 
in 

aphylla  L.     . 
indusiata  Brid. 
Campylopus  Brid. 

III. 

22 

23 
127 

tenellum    . 

atrovirens  De  Not. 

XIX. 

135 

callistomum 

Var.  falcatus      . 

— 

rufescens  (Dicks.)  Lindb. 
squarrosum  (Starke)  Lindb. 
Arcbidium  Brid  
alternifolium  (Dicks.)Schimp.        XIV. 

112 
II4 

91 
92 

epilosus      . 
brevipilus  B.  S.     . 
flexuosus  (L.)  Brid. 
Var.  paludosus. 
fragilis  (Dicks.)  B.  S.   . 

.    XVIII. 

298 

136 

132 
133 
128 

Barbula  Hedw  

257 

introflexus  (Hedw.)  Brid. 

XIX. 

135 

acuta  Brid  XL. 

268 

paradoxus  Wils.    . 

.    XVIII. 

133 

brevifolia  (Dicks.)  Lindb.      .  XXXIX. 

262 

pyriformis  (Schultt)  Brid. 

.      XVII. 

128 

Var.  acutlfolia   . 

263 

Schimperi  Milde. 

.    XVIII. 

129 

convoluta  Hedw.  .         .        .       XLI. 

273 

Schwarzii  Sch. 

. 

131 

Var.  Sardoa 

274 

setifolius  Wils. 

. 

134 

curvirostris  (Ehrh.)  Lindb.   XXXVII. 

259 

Shawii  Wils. 

XIX. 

131 

Var.  commutata 

Var.  hamatus.    . 

132 

cylindrica  (Tayl.)  Sch.  .         .         XL. 

269 

subulatus  Sch. 

.   XVIII. 

130 

Var.  vinealis 

270 

Var.  elongatus. 

298 

INDEX.] 


308 


Catharinea  Ehrh. 

angustata  Brid.     . 
crispa  (James) 

Var.  densifolia   . 
undulata  (L.)  W.  M.    . 

Var.  minor 

Ceratodon  Brid 

conicus  (Hampe)  Lindb. 
purpureus  (L.)  Brid.     . 

Cinclidotus  P.  B. 

fontinaloides  (Hedw.)  P.  B. 

DichodontiumScA. 

flavescens  (Dicks.)  Lindb.     . 
pellucidum  (L.)  Sch.     . 

Var.  fagimontanum    . 

strictum 

Dicranella  Sch.    .        .        ..*' . 
cerviculata  (Hedw.)  Scfi. 

Var.  pusilla 
crispa  (Ehrh.)  Sch. 
curvata  (Hedw.)  Sch.    . 
heteromalla  (Dill.)  Sch. 

Var.  stricta 

interrupta 

sericea 

secunda  (Swartz)  Lindb. 
Dicranoweissia     .... 
cirrata  (L.)  Lindb. 
crispula  (Hedw.)  Lindb. 
Dicramun  Hedw. 
asperulum  Mitt. 
Bergeri  Bland. 
Bonjeani  De  Not. 

Var.  juniperifolium    . 

calcareum 

congestum  Brid. 

Var.  flexicaule    . 
elongatum  Schleich. 
falcatum  Hedw. 
flagellare  Hedw. 
fulvellum  (Dicks.)  Sm. 
fuscescens  Turn.  . 

Var.  falcifolium 
longifolium  Ehrh. 

majus  Sm 

molle  Wils 

montanum  Hedw. . 
Sauteri  B.  S. 

Var.  curvulum   . 
schisti  (Gunn.)  Lindb.  . 
scoparium  (L.)  Hedw.  . 

Var.  alpestre      .        .        « 

recurvatum 

turfosum    . 

orthophyllum     . 

paludosum         «  ,     i 


1 

>AGE 

i 

•AGE 

37 

Scottii  Turn. 

XXIII. 

157 

V. 

38 

Starkei  W.  M  .       . 

XX. 

144 

— 

41 

spurium  Hedw. 

XXII. 

151 

42 

uncinatum  (Harv.)  C.  M. 

XXIV. 

160 

— 

39 

undulatum  Ehrh.  . 

299 

40 

viride  (Sull.  Lesq.)  Lindb.     . 

XXIII. 

156 

173 

Didymodon  (Hediv.)     .        .      ~>. 

125 

XXVI. 

175 

denudatus  (Brid.)  Lindb. 

XVII. 

— 

— 

173 

Var.  alpinus       .         .         . 

126 

277 

Ditrichum  Timm. 

96 

XLI. 

flexicaule  (Schleich.)  Hampe. 

XV. 

IOI 

Var.  densum      .        . 



XXIV. 

161 
163 

homomallum  (Hedw.)  Hampe. 
Var.  zonatum    .        .        . 

XIV. 

99 

IOO 

— 

162 

subulatum  (Bruch)  Hampe    . 

— 

163 

tenuifolium  (Schrad.)  Lindb. 

— 

97 

300 

tortile  (Schrad.)  Hampe 

— 

98 

104 

Var.  pusillum     .        . 

•  — 

XVI. 

109 

Ephemerum  Hampe 

182 

~V\7 

cohaerens  (Hedw.)  Hampe     . 

XXVII. 

185 

\V  . 

IO5 

intermedium  Mitt. 



184 

— 

106 

minutissimum  Lindb.    . 



— 

107 

recurvifolium  (Dicks.)  Bonlay 

— 

186 

108 

serratum  (Schrcb.)  Hampe    . 

— 

183 

stenophyllum  (Voit)  Sch. 

— 

185 

— 

Var.  brevifolium         .         . 

1  86 

— 

106 

Fissidens  Hcdiv. 

137 

adiantoides  (L.)  Hedw. 

XII. 

78 

XIX. 

138 

Var.  collinus.      .         .         . 

84A 

— 

139 

bryoides  (L.)  Hedw. 

X. 

71 

140 

Var.  intermedius 

XII.* 

83 

XVII. 

cristatus  Wils. 

84A 

XXII. 

I5° 

Var.  brevifolius  . 

— 

XXL 

149 

Curnowii  Mitt. 

— 

83 

decipiens  De  Not  . 

XL 

76 

150 

exil'isHed  

X. 

67 

XXII. 

152 

exiguus  Sull. 

XII.* 

81 

fontanus  Schimp.  . 

83 

XXIII. 

J54 

incurvus  Starke     . 

X. 

69 

XX. 

143 

Var.  tamarindifolius  . 

XIL* 

— 

XXIII. 

minutulus  Sull.     . 

XII.* 

81 

XIX. 

141 

Orrii  Lindb.  .         . 

X. 

73 

XXII. 

osmundoides  (Swartz)  Hedw. 

XL 

— 



polyphyllus  Wils. 

XII. 

79 

XXIV. 

158 

rivularis  Spruce 

XIL* 

84 

XX. 

rufulus  Br.  Sch. 

XL 

74 



144 

serrulatus  Brid.     .    •     . 

— 

75 

XXIII. 

154 

taxifolius  (L.)  Hedw.     . 

XIL 

77 

XXIV. 

158 

Tequendamensis  Mitt. 

82 

viridulus  (Swartz)  Wahlen.  . 

X. 

70 

XX. 

142 

Georgia  Ehrh  

27 

XXI. 

146 

Brownii  (Dicks.)  C.  M. 

IV. 

30 

pellucida  (L.)  Rabenh. 

— 

28 

148 

alpina  (Sm.)  Lindb. 

XLII. 

280 

— 

Var  imberbis.     .         .         . 

— 

— 

contorta  (Wulf.)  Lindb. 

— 

284 

INDEX. 


309 


exstinctoria  (L.)  Leyss. 

Var.  pilifera.      .        . 

obtusifolia. 

laciniata  Hedw.  . 
rhabdocarpa  (Schw.)  Lindb 

Leptodontium  Hampe. 

flexifolium  (Dicks.)  Hampe 
gemmascens  (Mitt.)  Braithw 
recurvifolium  (Tayl.)  Hampe 

Leucobryum  Hampe  . 
glaucum  (L.)  Sch. 
minus  Hampe 

Mollia  Schrank.   .        .    '    . 
asruginosa  (Sw.)  Lindb. 

Var.  ramosissima 
brachydontia  (Bnich)  Lindb 

Var.  cophocarpa. 
calcarea  (N.  H.)  Lindb. 

Var.  viridula. 
crispa  (Hedw.)  Lindb. 

Var.  aciculata.  . 
crispula  (Brtich)  Lindb. 

Var.  viridula 

elata. 

nigroviridis. 

flavovirens  (Bruch)  Lindb. 
fragilis  (Drum.)  Lindb. 
hibernica  (Mitt.)  Lindb. 
inclinata  (Hed.f.)  Lindb. 
litoralis  (Mitt.)  Lindb. 

Var.  angustifolia. 
lutescens  Lindb.  . 
microstoma  (Hed.)  Lindb. 

Var.  obliqua. 

— elata 

Mittenii  (B.  S.)  Braithw. 
multicapsulare  (Sm.)  Lindb. 
nitida  Lindb. 
rostellata  (Brid.)  Lindb. 
rutilans  (Hed.)  Lindb. 
squarrosa  (N.  H.)  Lindb. 
tenuirostris  (H .  T.)  Lindb. 

Var.  Daldinii.    . 

—  Holtii. 

tenuis  (Schrad.)  Lindb. 
tortilis  (Schwg.)    . 
tortuosa  (L.)  Schrk. 
Var.  dicranoidea 

—  angustifolia 
fragilifolia 

verticillata  (L.)  Lindb. 
viridula  (L.)  Lindb. 
Var.  amblyodon. 

—  gymnostomoides 
densifolia  . 


PAGE 

.        XLII.       28l 
282 

—      282 
-      284 

255 

,  XXXVII.  — 
.XXXVIII.  256 

-  257 

85 

.  XIII.  86 
.  XLV.  295 

228 

.  XXXV.  240 
•  *  241 

.XXXVI.  245 

246 
.  XXXV.  239 

240 

.XXXIII.  231 
.  XXXV.  243 

244 

.XXXVI.  249 

.XXXVII.  254 

.  XXXVI.  248 

.XXXVII.  251 

.   XXXV.  244 

245 

.XXXVIII.  246 
.XXXIV.  234 

301 

.XXXIII.     232 

.XXXVII.  250 
.  XXXIV.  233 

-  238 

-  235 

.  XXXVI.     247 

.  '         248 

.  XXXIV.     239 

—   235 

.XXXVII.    252 

253 

254 

.  XXXV.  241 
.  XXXIV.  236 

237 

238 


Oligotrichum  Lam.  D.  C.     . 
incurvum  (Huds.)  Lindb. 

Var.  laxum.        .        *      '  v 
Oncophorus  Brid. 

Bruntoni  (Sw.)  Lindb. 
crispatus  (Dicks.)  Lindb. 
crenulatus    (Mitt.)    Braithw 
gracilescens  (W.  M.)  Lindb 
polycarpus  (Ehrh.)  Brid. 
striatus  (Schrad.)  Lindb. 
strumifer  (Ehrh.)  Brid. 
virens  (Sw.)  Brid. 

Var.  serratus 
Wahlenbergii  Brid. 

Var.  compactus 

Phascum  L.           .         .         .         , 
acaulon  L 

Var.  piliferum    .        f 

Schreberi  .        ,        , 

—  curvisetum 
curvicolle  Ehrh.     . 
Floerkei  W.  M.    . 

Var.  badium       .        . 
Pleuridium  Brid. 

alternifolium  (Kaulf.)  B.  S. 
axillare  (Dicks.)  Lindb. 

Var.  strictum 
subulatum  (L.)  Rabenh. 
Pleurochsete  Lindb. 

squarrosa  (Brid.)  Lindb. 
Polytrichum  Dill. 
aloides  Hedw. 

Var.  Dicksoni.    . 
alpinum  L. 
attenuatum  Menz. 
commune  L. 
Var.  perigoniale 
minus 

—  fastigiatum 
gracile  Dicks. 
juniperinum  Willd. 
piliferum  Schreb.   . 
sexangulare  Floerke 
strictum  Banks 
subrotundum  Huds. 

Var.  longisetum. 
urnigerum  L. 

Var.  humile. 
Pottia  Ehrh. 

asperula  Mitt. 
bryoides  (Dicks.)  Mitt.  . 

Var.  Thornhillii 
caespitosa  (Bruch)  C.  M. 
crinita  Wils. 
Heimii  (Hedw.)  Fuern.  . 
intermedia  (Turn.)  Fucrn. 
lanceolata  (Hed.)  C.  M. 


PAGE 

42 

V. 

43 

164 

.'      XXVI. 

170 

. 

171 

;.      XLV. 

300 

>.      XXV. 

168 

. 

169 

.     XXVI. 

172 

.      XXV. 

167 

. 

165 

• 

166 

167 

189 

.   XXVII. 

— 

190 

.XXVIII. 

192 

.  XXVII. 

191 

. 

93 

'.        XIV. 

95 

— 

93 

94 

227 

.XXXIII. 

228 

44 

VI. 

46 

47 

. 

49 

VII. 

53 

IX. 

57 

58 

• 

59 

VII. 

52 

.       VIII. 

55 

.       VIII. 

54 

VII. 

5! 

.       VIII. 

56 

VI. 

45 

46 

VI. 

48 

49 

192 

.    XXIX. 

202 

.  XXVIII. 

194 

.    XXIX. 

200 

.      XXX. 

203 

.XXVIII. 

195 

. 

197 

.     XXIX. 

199 

INDEX.] 


310 


PAGE 

] 

?AGE 

latifolia  (Schw.)  C.  M. 

.      XXX. 

204 

canescens  Mont.     . 

.    XXXI. 

216 

litoralis  AIM. 

.XXVIII. 

198 

cuneifolia  (Dicks.)  Roth. 

. 

213 

recta  (With.)  Mitt. 

. 

193 

ericcefolia  (NeeJt.)  Lindb. 

.      XXX. 

210 

Starkei  (Hed.)  C.  M'.     . 

.     XXIX. 

2OO 

la^vipila  (Brid.)  Schw. 

XXXII 

223 

Var.  affinis. 

201 

lamellata  Lindb.    . 

.      XXX. 

208 

—  Davallii.     . 

— 

marginata  (B.  S.)  Spruce 

.     XXXI. 

215 

truncatula  (L.)  Lindb.    . 

XXVIII. 

196 

montana  (Nees)  Lindb. 

.XXXIII. 

224 

viridifolia   Mitt.     . 

.     XXIX. 

202 

muralis  (L.)  Hedw. 

.     XXXI. 

216 

Wilson!  (Hook.)  C.  M.  . 

— 

203 

Var.  rupestris 

217 

Saelania  Lindb. 

. 

176 

aestiva 

218 

cassia  (Vill.)  Lindb.       . 

.     XXVI. 

176 

mutica  Lindb. 

.  XXXII. 

221 

Seligeria  B.  S.      . 

115 

papillosa  Wils. 

— 

222 

acutifolia  Lindb.    . 

XVI. 

118 

princeps  De  Not.  . 

.XXXIII. 

227 

Var.  longiseta    . 

_ 

pusilla  (Hedw.)  Mitt.    . 

.       XXX. 

207 

calcarea  (Dicks.)  B.  S.  . 
Donii  (Sm.)  C.  MuelL   . 
paucifolia  (Dicks.)  Carruth. 
pusilla  (Ehrh.)  B.  S.      . 
setacea  (Wulf.)  Lindb.  . 
trifaria  (Brid.)  Lindb.    . 

.      XVII. 
XVI. 
.     XVII. 
XVI. 
.      XVII. 
XVI. 

120 

116 

119 

"7 

121 

118 

Var.  incana 
ruralis  (L.)  Ehrh. 
Var.  arenicola    . 
stellata  (Schreb.)  Lindb. 
suberecta  (Drumm.)  Lindb. 
subulata  (L.)  Hedw. 

.XXXIII. 

.      XXX. 

XLI. 
.  XXXII. 

225 
226 
209 
276 

219 

Var.  subinermis  . 

2  2O 

Swartzia  Ehrh.     . 

IO2 

Vahlii  (Schultz)  Wils.  . 

.    XXXI. 

214 

inclinata  Ehrh. 

XV. 

103 

Var.  subflaccida          . 

montana  (Lamk.)  Lindb. 

XV. 

102 

Var.  compacta   . 

• 

103 

Trematodon  Michx. 

, 

296 

Tortilla  Hedw.      . 

205 

ambiguus  (Hedw.)  Hornsch 

— 

aloides  (Koch)  De  Not. 

.     XXXI. 

211 

angustata  Wils.     .        . 

.  XXXII. 

221 

Webera  Ehrh. 

atrovirens  (Sm.)  Lindb. 

.    XXXI. 

212 

sessilis  (Schmid.)  Lindb. 

.    XLIII. 

291 

brevirostris  (Hk.  Grev.) 

.      XXX. 

209 

Var.  acutifolia    . 

293 

The  index  to  the  whole  synonymy  will  be  given  at  the  end  of  the  work. 


CLASSIFIED    LIST    OF    SPECIES. 

MUSCI     ACROCARPI. 


I.     SCHISTOCARPI. 

Fam.  i.     ANDRE^EACEjE. 

ANDRE^A  Ehrh 

§   i.  Euandreaa. 

1.  A.  petrophila  Ehrh. 

ft.  homomalla  Schp. 

y.    acuminata  — 

8.    flaccida 

£.    sylvicola 

s-    gracilis 

i].    alpestris  Theden. 

$.  sparsifolia  (Zetterst.) 

2.  A.  alpina  (Dill.}  Sm. 

ft'  compacta  Hook, 
y.    flavicans  — 

3.  A.  crassinervis  Bnich. 

ft.   Huntii  (Limpr.) 

4.  A.  Rothii  W.  M. 

ft.  frigida  (Hueb.) 
y.  hamata  Lindb. 
(L    falcata  (Schimp.) 
§  2..  Chasmocalyx. 

5.  A.  nivalis  Hook. 

ft.  fuscescens  Hook. 

II.     STEGOCARPI. 

A .  A  narthrodontei. 

Fam.  2.     BUXBAUMIACE^;. 

BUXBAUMIA  Hall. 

1.  B.  aphylla  L. 

2.  B.  indusiata  Brid. 

Fam.  3.     GEORGIACE^. 

GEORGIA  Ehrh. 

1.  G.  pellucida(L.)-R0fo»A. 

2.  G.  Brownii  (Dicks.)  C.  M. 

Fam.  4.     POLYTRICHACE^;. 

CATHARINEA  Ehrh. 

1.  C.  angustata  Brid. 


2.  C.  undulata  (L.)  Web.  Mohv. 

ft.  minor  (Hedw.) 

3.  C.  crispa  (James). 

ft.  densifolia  Lindb. 

JOLIGOTRICHUM  Lamk.  D.  C. 

I.  -  incur  vam(Huds.)  Lindb. 

ft.   laxum  Braithw. 

POLYTRICHUM    Dill. 

§   i.  Aloiddla. 

1.  P.  subrotundum  ff«rfs. 

ft.   longisetum  (Hampe). 

2.  P.  aloides  Hedw. 

ft.  Dicksoni  (Turn.) 

§  2..  Pogonatum. 

3.  P.  urnigerum  L. 

ft.  humile  Wahlenb. 

4.  P.  alpinum  L. 

§  3.  Eupolytrichum. 

5.  P.  sexangulare  Floerke. 

6.  P.  gracile  Dtcfo. 

7.  P.  attenuatum  M«M^. 

8.  P.  piliferum  Schreb. 

9.  P.  juniperimim  Willd. 
10.  P.  strictum  Banks. 

II.  P.  commune  L. 

/3.  perigoniale  (Michx.) 

y.    minus  Weiss. 

8.    fastigiatum  (Ly/t). 

B.  ARTHRODONTEI. 

t  Gamophyllea  . 
Fam.  5.     FISSIDENTACE^;. 

FISSIDENS  Hedw. 


1.  F.  exilis 

2.  F.  exiguus  S«M. 

3.  F.  minutulus  S«//. 


3I2 


4.  F.  viridulus  (Swartz)  Wahl. 

5.  F.  incurvus  Starke. 

ft.  tamarindifolius.  (Don). 

6.  F.  Tequendamensis  Mitt. 

7.  F.  bryoides  (L.)  Hedw. 

ft.  intermedius  Ruthe. 

8.  F.  Curnowii  Mitt. 

9.  F.  fontanus  S chimp. 

10.  F.  rivularis  Spruce. 

11.  F.  rufulus  Br.  Sch. 

12.  F.  osmundoides  (Swartz)  Hedw. 

13.  F.  serrulatus  Brid. 

14.  F.  taxifolius(L. )#«*». 

15.  F.  cristatus  Wils. 

/3.  brevifolius  Lindb. 

16.  F.  adiantoides  (L.)  Hedw. 

ft.  collinus  Jlfttf. 

17.  F.  polyphyllus  Wils. 

I  f  Eleutherophyllea. 

Fam.  6.     LEUCOBRYACE^E. 

LEUCOBRYUM  Hampe. 

1.  L.  glaucum  (L.)  Schimp. 

2.  L.  minus  Hampe. 

Fam.  7.     DICRANACE^;. 
§   i.  Ditrichea. 
ARCHIDIUM  Brid. 

1.  A,  alternifolium  (Dicks.)  Sch.  ' 

PLEURIDIUM  Brid. 

1.  P.  axillare  (Dicks.)  Lindb. 

ft.   strictum  (Dicks.) 

2.  P.  subulatum  (L.)  Rabenh. 

3.  P.  alternifolium  (Kaulf.)  Rabenh. 

DITRICHUM  Timm. 
§   i.  Trichodon. 

1.  D.  tenuifolium  (Schrad.)  Lindb. 

§  2.  Euditrichum. 

2.  D.  tortile  (Schrad.}  Hampe. 

ft.  pusillum  (Hedw.) 

3.  D.  homomallum  (Hedw.)  Hampe. 

ft.  zonatum  (Funck). 

4.  D.  subulatum  (Bruch.)  Hampe. 

5.  D.  flexicaule  (Schlcich.)  Hampe. 

ft.  densum  (Br.  Sch.) 
SWARTZIA  Ehrh. 

1.  S.  montana  (Latnk.)  Lindb. 

ft.    compacta  (Hueben.) 

2.  S.  inclinata  Ehrh. 


§  2.  Trematodontces. 
TREMATODON  Michx. 
1.  T.  ambiguus  (Hedw.)  Hornsch. 

§  3.  DicvanellecE. 

DlCRANELLA  Schlttlp. 

1.  D.  crispa  (EArA.)  5^A. 

2.  D.  secunda  (Swartz}  Lindb. 

3.  D.  curvata  (Hedw.}  Sch. 

4.  D.  heteromalla  (Dill.)  Sch. 

ft.  stricta  Sch. 

y.  interrupta  (Hedw.) 

o.  sericea  Sch. 

5.  D.  cerviculata  (Hedw.)  Sch. 

ft.  pusilla  (Hedw.) 


ANISOTHECIUM  Mitt. 


1. 


A.  rubrum  (Huds.)  Lindb. 
ft.  tenuifolium  (Bruch). 
y.  tenellum  (Sch.) 
3.  callistomum  (Dicks.) 

2.  A.  rufescens  (Dicks.)  Lindb. 

3.  A.  GreviUei  (Br.  Sch.)  Lindb. 

4.  A.  crispum  (Schreb.)  Lindb. 

ft.  elatum  (Sch.) 

5.  A.  squarrosum  (Starke)  Lindb. 

§  4.  Seligeriece. 
SELIGERIA  By.  Sch. 

1.  S.  Donii  (S;».)  C.  M. 

2.  S.  pusiUa  (Ehrh.)  Br.  Sch. 

3.  S.  acutifolia  Lindb. 

ft.  longiseta  Lindb. 

4.  S.  trifaria  (Brid.)  Lindb. 

5.  S.  paucifolia  (Dicks.)  Carnith. 

6.  S.  calcarea  (Dicks.)  Br.  Sch. 

7.  S.  setacea  (Wulf.)  Lindb. 

BRACHYDONTIUM  Bruch. 
1.  B.  trichodes(Ptoi.  Mohr}  Fuern. 


§  5. 
BLINDIA  B.  and  S. 

1.  B.  caespiticia  (Schwaeg.)  Lindb. 

2.  B.  trichodes  (Wils.)  Lindb. 

3.  B.  acuta  (Huds.)  Br.  Sch. 

DIDYMODON  (Hedw.)  W.  M. 
1.  D.  denudatus  (Brid.)  Lindb. 
ft.  alpinus  (Sch.) 
CAMPYLOPUS  Brid. 

1.  C.  pyriformis  (Schultz)  Brid. 

2.  C.  fragilis  (Dicks.)  Br.  Sch. 

3.  C.  Schimperi  Milde. 


*QK 

543  Braithwaite 
British 
1QQ7  moss-flora. 
v, 


*QK 
543 
B73b 
1887 
v.l 


V