may al Tea ei re :! cm te Sai} eS a er We ase -. - TRANSACTIONS AND PROCEEDINGS OF THE id | | BOTANICAL SOCIETY. VOL. XV.—PART I. DUPLICAT DU Consiry TEQUE &3" A DE LA BIBLIogi® ATCIRE BOTANICH ; pee = ok q QUE DE a = ens) mts VENDU EN 1999 Die ase ees eo %?- . 4 .. 4 ‘ 4a ~ EDINBURGH: PRINTED FOR THE BOTANICAL SOCIETY. MDCCOLXXXIV. Ss Along with the 2nd Part of “Hepatic Amazonice et Andinex,” completing the work, will be issued a short Intro- duction, mainly geographical, a Synopsis of the genera, an Index, and the remainder of the Plates, about 16 in number. TRANSACTIONS AND PROCKEDINGS OF THE POetANICAL SOCIETY. VOLUME XV. LIBRARY NEW YORE USSIE (eX =" 5 oN Ke SN ‘CATA DE I, DU 7 ee VATCIRE K . IB 37 “ANIQU Le BND 7 RN 1929 EB LIoOTz HG) QUE DE cENavE rae EDINBURGH: PRINTED FOR THE BOTANICAL SOCIETY, MDCCCLXXXIV. . | Rae | VAS / 684-85 a I ow. ee —— ee a ae 7 . _ PRINTED BY NEILL AND COMPANY, EDINBURGH. HEPATIC AMAZONICE ET ANDINE QUAS IN ITINERE SUO PER TRACTUS MONTIUM ET FLUVIORUM AMERICA AQUINOCTIALIS A FLUMINIS AMAZONUM OSTIIS AD MARIS PACIFICI LITORA USQUE, NECNON A CATARACTIS FLUMINIS ORINOCT, CIS HQUATOREM, ADUSQUE FLUVII HUALLAGA CATARACTAS, LAT. 6°—7° AUSTRALI, ANNIS 1849-—1862, DECERPSIT NUPERIUSQUE DESCRIPSIT RICHARD SPRUCE. AUG 7- 1923 CONSPECTUS HEPATICARUM SUBORDINUM, TRIBUUM ET SUBTRIBUUM.,; wera. Susorpo I JUNGERMANIACEA.* Vegetatio foliosa, in perpaucis frondosa. Fructus solitarius pedi- cellatuscapsularis quadrivalvis, rarissime irregulariter ruptus. Elateres sporis interjecti. Andrecia spicata, sepe amentiformia ; antheridia bracteis foliaceis suffulta, solum in paucis frondosis in caule sparsa vel seriata et ebracteata.—-p. 1-556. Tribus Il. JUBULE. Ramificatio ubique lateralis, scilicet ramis distichis, foliis solum lateralibus (nunquam posticis) adjectis, in plerisque infra-axillaribus. Folia semper alterna, incuba, complicato-biloba, lobulo inferiore minore vulgo inflato vel saccato. Folivla, sive folia postica, in omnibus ferme presentia, radicellifera; in paucis nulla (radicellis in tali re in caule biseriatis); in paucissimis duplicata (ie. biseriata). Flores & sepius diandri, in paucis monandri, solum in Myriocolea 4-7-andri. Flores 9 monogynt, vel 1-4-gyni. Perianthium semper presens, liberum, a fronte plus minus compressum, 2—12-angulatum, raro teres, apice constricto breviter tubulare. Calyptra tam a peri- anthio quam a pistillidiis constanter libera. Capsula brevipes globosa, ab apice ad 3 solum 4-valvis, tertid parte inferiore solida, collum sive apophysin (revera pedicelli apicem dilatatum) sistente. Elateres monospiri, truncati, persistentes.—p. 1-308. Tribus Il. JONGERMANIEZ. Ramificatio varia, lateralis, vel ex parte (quoad ramulos floriferos precipue) postica ; raro omnes rami postici, rarissime alii etiam antici. * Caracteres literis italicis impressi majoris momenti sunt. = V1 . CONSPECTUS HEPATICARUM Folia in aliis incuba vel transversa, in aliis succuba, alterna vel opposita, forma valde varia, plerumque subexplanata vel concava, integra vel perszepe fissa, rarius autem complicato-biloba. Foliola aliorum generum constanter przesentia, aliorum perrara nullave. Flores 3 in aliis semper monandri, in aliis oligandri, in perpaucis polyandi. Flores 2 oligo-polygyni ; pistillidia 5-80, libera, vel in fructu calyptre plus minus alte adnata. Perianthium valde varium, complanatum, trigonum vel polygonum, raro perfecte teres, ore hiante vel constricto ; interdum plane vel ad speciem deficiens ; in paucis marsupium carnosum pendulum sistens. Calyptra utplurimum libera, in aliis autem perianthio vel involucro adnata. Capsula globosa, oblonga vel cylindrica, ad basin usque 4-valvis, in paucis- simis irregulariter dehiscens. Hlateres in omnibus sere dispiri, raro monospiri vel 3-4-spiri, decidui, perpauci heteromorphi interdum in capsule fundo apiceve diutius persistentes, demum idem ac normales decidui. —p. 309-556. A. Lluteres normaliter dispiri. a. Ladicelle e foliorun lobulo orte. Subtribus 1. Raputya. Plante grandiusculie, prostrate, dichotome vel laxe pinnatee. Rami omnes laterales, infra-axillares. Folia iucuba, complicato-biloba, lobulo inferiore minore rhizophoro. Foliola nulla. Flores @ 1-8-andri. Perianthium a fronte semper fere compressum, interdum complanatum, ore lato truncato. Capsula tantum non omnium oblongo-cylindrica.—p. 313-325. b. Radicelle e cuule vel e foliolis posticis orte. Subtribus I]. Porettem. Plante elate speciosee. Caules e caudice re- pente radicelloso orti plumeformi-pinnati vel bipinnati, subarhizi, rans omnibus lateralibus intra-axillaribus. Folia incuba complicato- biloba, lobulo inferiore sat minore ligulato. oliola lobulis equi- magna, subinde rhizophora. Flores dioici: ¢ constanter monandri. Flores 2 in ramulo laterali valde abbreviato terminales (i.e. clado- yeni). Perianthium a tronte compressulum, trigonum, angulo tertio postico, 3-10-plicatum, ore laciniolato primum constricto demum hiante vel bilabiato. Calyptra libera. Capsula magna globosa, ad basin usque 4-valvis ; valvulis sepe basin versus incomplete disjunctis, urregu- lariter fissis.—p. 325-334. Subtribus IIL. Partiprex. Plante pro more elate, sepe pulchre colorate, SUBORDINUM, TRIBUUM ET SUBTRIBUUM. Vil albidee, flavicantes roseeeve, interdum sanguinee. Caules plerumque e caudice repente radicelloso, seepe etiam flagellifero, orti, pinnatim vel yage ramosi subarhizi ; rami vel omnes laterales vel alii postici, flore Q autem semper in caule vel in ramo laterali (nunquam postico) longiore brevioreve terminali. Folia incuba, transversa, vel succuba, foliolis (semper presentibus) subequimagna atque conformia, canalicu- lata, rarissime autem complicata, bi-plurifida, seepe eleganter ciliata, vel in lacinias capillares dissoluta. Florescentia in omnibus (Anthelia Juratzkana sola excepta?) dioica. Flores ¢ in succubifoliis mon- andri, in incubifoliis utplurimum diandri. Bractee 9 plurijuge, vel omnes liber, vel intime perianthio—interdum calyptre— adnate. Perianthium (ubi adest) a fronte parum vel vix com- pressum, carinis plicisve 3-10 percursum, raro ecarinatum, ore con- strictum vel truncatum, a bracteis intimis liberum vel in aliis generi- bus iisdem adnatum et obvelatum; interdum nullum. Calyptra libera, vel in aliis speciebus eperiantheriferis bracteis internis ves- tita. Capsula vel globosa valida pluristrata rectivalvis, vel cylin- dracea bistrata tortivalvis, valvulis interdum bifidis. Hlateres tenues dispiri.—p. 335-351. Subtribus IV. TriconantHe&. Plante pusille vel elatiores, e viridi pallescentes, raro luridze vel subrosez. Caules seepius prostrati vel procumbentes, vage vel pinnatim ramosi, aut dichotomi, flagellis posticis subaphyllis seepe adjectis. Rami foliosi laterales, vel alii— interdum omnes—postici ; florifert Q tantuwm non in omnibus postict solum in paucis Cephaloziis terminales ; in Anomoclada autem rami tam foliosi quam floriferi omnes antici. Folia alterna, raro opposita, succuba vel incuba, forma varia, ab apice—sepe lato, truncato—plus minus profunde 2-4-(raro ad 6-) dentata-lobatave, raro perfect integra ; in perpaucis complicata (lobulo postico minore); margine utpluri- mum integerrimo plano vel incurvo (nunquam recurvo). Foliola vel nulla vel parva; raro foliis haud multo minora iisdemque subcon- formia. Flores ramulo postico constantes ; vel (rarius tamen) in ramo laterali vel in ipso caule terminales, ¢ monandri, rarissime diandri. Bractee 9 plerumque trijugee et tristiche, in paucis distiche. Perianthium semper fere elongatum et angustum, trigonum, angulo tertio postico, raro ex angulis intercalatis 4-6-gonum, omnibus angulis exalatis et inermibus; a calyptra et involucro liberum (preter Anomo- clade bracteis intimis leviter adnatum, et Kantie cui marsupium calyptra intus concretum perianthii loco adest). Calyptra plerumque , parva, nisi in Kantia libera. Capsula seepissime oblonga vel eylin- drica, bistrata—in paucis generibus 4—5-strata, valvulis rectis, solum in Kantia contortis. Elateres tenues dispiri.—p. 351-416. Subtribus V. ScaranrompEx. Plante speciosee grandifolix, colore roseo VIL GONSPECTUS HEPATICARUM albido, vel flavido spe insignes. Caulese caudice repente orti, erecti vel devexi, subradicellosi, ramos paucos solum laterales proferentes. Folia alterna transversacomplicato-biloba, lobulo antico minore, margine utplurimum pulchre denticulata ciliatave, interdum etiam lobulata, facie supera nuda vel in aliis lamellosa pilosave. oliola in plurimis nulla, in paucis adsunt sat magna, biloba et incisa. Flores in caule terminales, dioici, raro paroici: ¢ di-polyandri. Bractee Q in plerisque foliis subconformes, magis equilobe. Perianthiwm in typicis emersum; liberum, a fronte compressum, ore truncato seepe complanatum et decurvum, in aliis paucis minus compressum et 5- pluriplicatum; in genere Schistocheila Dum. (= Gottschea Nees.) autem nullum proprium, bracteis 3—4-jugis, caulis apici cavo tumenti adnatis, perianthii vicibus fungentibus. Capsula valida oblonga, interdum prelonga. Elateres dispiri—Subtribus melius forsan pro sequentis sectione habenda, habitu autem peculiari et foliis com- plicatis lobulo antico minore (nee postico ac in Radula, etc.) facile re- cognoscenda.—P. 416-419. Subtribus VI. EprcontantHe&. Plante rarius pusille, seepe elatiores vel robust, e viridi albicantes flavideeve, nune subluride, minus fre- quenter rosexe. Caules vel e caudice radicelloso repente assurgentes, tantum non omnes arhizi; vel prostrati et crebrius radicellosi; vage ramosi vel dichotomi, raro pinnati. am semper fere laterales, e foli- orum axilla media posticave orti, rarissime revera postici, Le. foliolis axillaria. Folia succuba vel transversa (nunquam incuba) alterna vel opposita, sat lata, integra, bifida vel 3-5-fida; margine in pusillis pro more integerrima, in elatioribus perszepe ciliata vel spinoso-dentata, basi antica seepe valide recurva. oliola plerumque nulla vel parva, raro majuscula; in aliis speciebus oppositifoliis (e.g. Lophocoleis, Chiloscyphis et Leioscyphis) utrinque cum folio adjacente in verti- cillum trifolium connata; in Plagiochilis oppositifoliis autem nulla. Flores dioici vel monoici, acrogent, rarissime hypogeni. Bractew. ¢ 1-10-andre. Lractee Q 1-5-jugee, foliis plerumque magis incise, liberee vel in paucis perianthio plus minus alte adnate, vel denique perianthii incomplete monophylli vel plane deficientis vicibus fun- gentes. In generibus quibus marsupium perianthii loco adest bracteze interiores perseepe minute, marsupil os cingentes. Perianthium per- fectum normaliter a latere compressum, in aliis (superne saltem) com- planatum, anceps, apice preelato truncato vel bilabiato, suturis (antico et postico) seepe alatis, in lis autem quibus adsunt foliola majuscula perseepe trigonum, angulo tertio antico; in aliis denique magis inflatum, 3-polygonum, raro teres, microstomum. Capsula seepius plus minus oblongata, pluristrata. Hlateres di- (rarissime mono-) spiri.—p. 419- 523. SUBORDINUM, TRIBUUM ET SUBTRIBUUM. 1X Subtribus VII. Fossomspronte&. Plante foliosz vel sepius frondose, pro more prostrate, radicellosze; in Scalia autem basi rhizomatosé ramosa matrici adfixe, omnino arhize; subdichotome, speciebus frondosis rarlus postice subramosis. Caulis plerumque subplano-convexus, a frondis pagina bene definitus; vel preelatus, cum pagina utrinque con- fusus. Folia (ubi adsunt) succuba, sat lata, seepe carnosula, siccando flaccida. oliola, preter in Scalia, nulla. Frondes lineares vel obo- vate, integerrime vel serrulate, interdum pinnatifide, in Petalophyllo supra lamellose. Flores $ in caulis tota longitudine submarginales ; antheridia 2—dna, foliis viz velata ; in aliis tam foliosis quam frondosis in alveolis epidermidi opertis, utroque caulis latere ordinatis, 2-3na ; vel (in aliis) alveolis apertis monandris bractea minuta incurva suffultis recepta. Pertanthiwm mcomplete (solum in Pallavicinia pertecte) tubulare; in multis autem nullum adest. Calyptra raro parva, pler- umque elongata carnosa, ab involucro et perianthio libera, recepta- culo autem szepe plus minus alte concreta. Pistillida sterilia yel calyptre plus minus alte (interdum solo apici) adnata, vel super caulem seriata, nuda. Capsula in Typicis subglobosa, 2—5-strata, plus minus irregulariter dehiscens ; in § Leptotheceis cylindracea, 1-strata valuulis 4, regularibus, vel solum uno latere dehiscens. Elateres 2-4- (raro 1-) spiri, omnes simul, vel alii paulo tardius deciduii—P. 523- 539. b. Elateres monospiri, utroque fine acutissimi ; pauci autem apicales breves rigidi diutius persistentes. Subtribus VIII. Merrzcerte®. Plante frondose, dichotome vel pin- natim ramos, laciniis linearibus; rami in altero genere (Anewra) omnes laterales, costa lata laxius cellulosa subtus radicellosa, pagina nulla vel perangusta, raro sat lata; in altero generi (Metzgeria) rami rarissime laterales et pinnati, floriferi omnes (interdum etiam eflori- feri) postici, radicellis e costa margineque, subinde etiam e tota super- ficie ortis. Genitalia utriusque sexus in ramuli abbreviati costa disticha ; pistillidia 2-20-juga, astyla; antheridia sepius magis numerosa, rarissime 4-sticha. Perianthium nullum. Calyptra magna clavata, carnosa, in Aneura sepius papillosa, in Metzgeria radicellis hirta. Capsula elongata, ad basin usque 4-valvis, bistrata. Elateres apicales fixi, cum ceteris liberis intexti, in penicillos quatuor supra capsulam apertam porrectt.—p. 539-556. Susorpo II. MARCHANTIACEZ, Frondes plus minus carnose, prostrate, late et indistincte costate, supra venoso-areolate, areolis pro more uniporosis, strato hypoporo x CONSPECTUS HEPATICARUM cavernoso ; dichotome, interdum frondulas posticas edentes ; subtus radicellis prelongis villose, inter radicellas paleis seriatis coloratis plerumque ornate. Ductuli hydragogi capillacei longissimi fasciculati canalem subter costam implentes, deinde per pedunculi canaliculos ad capitulum usque ascendentes. lores in omnibus fere dioici, acrogeni vel epigeni. Caules 3-pollicares validi, e rufo nigrescentes, arcte tripinnati, horizon- taliter stratificati intricative. Folia viridia, «tate fulva rufave dense imbricata patulo-decurva late cordato-ovata fere orbiculata, seepius latiora quam longa ; lobulus minutus, ad caulem ramosque galeatus, cucullatus vel solum cochleatus, oblique divaricatus, ad ramulos clavato-saccatus subrecte reflexus caulique contiguus 5 cellulla mediocres eequilatere, e pariete valde nodoso-incrassato intus 6-10- (seepius 8-) sinuatee, subconformes, inferiores perpaulo majores, Foliola imbricata foliis fere aquimagna orbiculata decurrentia, ipsa basi subcordata, apice emarginata sinu triangulari, dentibus acutis vel subapiculatis, ad axin profunde canaliculata, alis superne valde reflexis. Flores monoici crebi: ? laterales, plerique ramuligeni, pauci ad ramos prinarios, nulli ad caulem, assurgenti-secundi. Bractes sub 5-juge, infine minute equilobe, superiores sensim majores late patentes HOMOTROPANTHA | FRULLANIA. 37 ineequilobee complicate, intime lobo lato subacuto subintegerrimo, lobulo duplo minore bracteolaeeque liberze segmentis acuminatis laciniatis. Perianthia vix emersa ovalia trigona erostria, angulis apicem versus oreque scaberula. Calyptra perianthio vix duplo brevior obovato- pyriformis 2 cell. crassa, demum apice ineequaliter bivalvis, Capsula in pedicello brevi vix emersa, rufa spherica profunde 4-fida, valvis recurvis. Elateres elongati angustiusculi, spiram tenuem laxe torquatam includentes, Andreecia ramigena subglobosa vel late ovoidea, folio axillari: longiora ; bractew plerumque plurijuge confertissime. Ad fl. Uaupés adest forma foliolis valde confertis reniformibus, bractearum lobulis bracteolisque margine undulato-crispis subinteg- errimis. Obs. The female branchlets are decidedly lateral, chiefly on the secondary branches, less frequently on the primary, never on the stem. They often alternate—springing first from one side of the branch, then from the other,—but as they all arch upwards, they seem, at first sight, to be seriate along the upper face of the branch. The leaf covering the base of each branch (leafy or floriferous) is wider than the rest, and more symmetrical, while the lobule is frequently evolute and the interlobule is enlarged (oblong, acute) and subtends the underside of the branch.—This interlobular process is usually quite wanting to normal stem-leaves. The different form of the cauline and ramuline lobules seems to almost break down the difference between F’, replicata and the K. Indian F’, nodulosa Nees. Suscenus IV.—METEORIOPSIS, S. Plante elatz stratificatee rufescentes vel fere atre. Caules pro more penduli longissimi laxe pinnati bipinnatique, ramis breviusculis, apice ad Meteorii (generis Muscorum) instar indefinite crescentes. Folia dissitiuscula, basi profunde cordata convolutivo-amplexantia, sub- triangularia pro more acuminata integerrima opaca ; lobulus 3-8plo brevior cauli appressus (erectus) tenuis cylindricus, rarius evolutus ; cellule parvee seepe subelongate, pariete incrassato. Foliola foliis subduplo breviora anguste gblonga bifida, alis interdum recurvis, Margine ipso autem plano. Flores dioici: @ in ramulo brevissimo insidentes, quasi-laterales. Bractez 3-4-juge, intime foliis plerumque sat longiores, profunde bifidee complicatse inzequilobze, lobis omnibus pro more acuminatis serratis laciniatisve, raro subintegerrimis ; bracteola libera segmentis subulatis. Perianthia trigona longirostria leyvia. Calyptra inferne 4 c. crassa. Andreecia vel ramulo folium axillare subexcedente constantia vel rarius in ramo terminalia, Hab. Ad arborum ramos et.folia necnon ad saxa in sylvis montium tropicalium opacis, ad crinis pulcherrimi instar longe pendula, muscis 38 FRULLANIA. [ mereortopsis simili habitu (Meteoriis, Phyllogoniis, etc.) perseepe consociata ; rarius etiam ad filices. Distr. Species paucee nobis cognitee inter tropicos totius orbis vigent. Tpse in Andium Quitensium et Peruvianorum devexis sylvaticis 4 species solum legi, quarum una, Fr. atrata Sw., a Mexico et ins. Antillarum ad Brasiliam australem dispersa est. Obs. Melius forsan pro subgeneris sequentis sectione habenda, differt autem a Thyopsiellis cladocarpicis caule indefinite elongato, foliis basi utrinque cordatis (nec solum antice semicordatis) caule circumvolutis, et foliolis angustis. The few species composing this group inhabit only the dampest hill- forests in tropical America, growing on rocks and the branches of trees, from which one of them, Jr. atrata Sw., depends in huge masses, sometimes half-a-yard long, and too bulky to be grasped in the arms. Its black-purple hue is often relieved by the admixture of mosses of similar pendulous habit, especially bright-green Meteoria, and silvery or golden Phyllogonia. It is found from the West Indies and Mexico to Southern Brazil and Peru, but I never met with it (nor with any other of the group) in the plains; wherefore I suspect that it has been erroneously indicated as growing on the Amazon and Orinoco. With Meteoriopsis might have been combined the cladocarpous species of the following subgenus (Zhyopsiella) ; the latter, however, differ in the definite stems and consequently more compact habit ; in the semi- cordate leaves (not equably cordate, or auricled on each side of the base) which are not convolute when fresh ; and in the much larger and wider underleaves, with recurved or reyolute margins. Otherwise, along with Meteoriopsis, they might rank as a mere section of Thyopsiella. 27. Fr, atrata.—Atro-rubens longissima laxe subbipinnata. F. cordato- ovata acuminulata acuta, lobulo 4plo breviore tenui, ce. mediis elongatis. Foliola (=folii §) ovali-lanceolata breviter bifida segmentis acutis. Br. intime foliis duplo longiores acuminate subserrate recurve. Per. vix emersa ovato-fusiformia sensim longirostria. 28. Fr, atrosanguinea.— Priori similis, flaccidior, colore saturate sanguineo ; foliis solum acutis—interdum obtusis, cellulis conformibus ; foliolis majoribus ; br. folia vix equantibus haud acuminatis, lobulis ciliato- laciniatis ; per. emersis ex apice lato abrupte longirostribus, differt. 29. Fr. Perwviana.—Pallide viridis. F. cordato-ovata triangularia acuminulata, margine interdum lenissime recurvulo, lobulo 3plo breviore sepe evoluto. Foliola 2plo breviora oblonga ad 3 bifida, segmentis acutis. Br. foliis longiores, lobis inciso-serratis, lobulis 2- plo angustioribus prelongis segmentisque bracteole complicate sublaciniatis. Per. ovali-fusiformia rostello praeelongo solo emersa. 30. Fr. aculeata.—Atro-rubens minus elongata. FF. biauriculato- cordata triangularia setaceo-acuminata, lobulo praeminuto tenui, c. omnibus elongatis, Foliola plus duplo breviora lineari-oblonga ad 4, bifida, segmentis subulato-setaceis. Br. foliis longiores bracteolaque bipartite, segmentis longe setaceo-acuminatis subintegerrimis. Per. immersa triquetro-fusiformia longissime rostrata. 27. FRULLANIA ATRATA (Sw.). Jung. atrata Sw, Prodr, Flor, Ind, occ, 144; Frullania a. Nees, ‘Syn. Hep’, 464. METEORIOPSIS | FRULLANIA. 3 Hab. In Andium Quitensium sylvis montanis, supra montes Tunguragua et Guayrapata precipue, alt. circiter 3000™. ex arborum ramis pendula; in planitie nusquam vidi ; ad flumina Amazonum et Orinoco tamen in ‘Syn. Hep, (per errorem ?) indicata est. Caterum, in montibus totius fere Americe tropic haud raro ocurrit. F 12x°9, lob -3, ¢ d-; ff °75x°35, “75x35 br 25-30; per Zo x foe, Caules longissimi, pedales vel etiam bipedales, capilliformes, laxe symmetrice pinnati et bipinnati, in fasces magnos nigrescentes pendulos coacervati. Folia subimbricata dissitave e rubro atra opaca cauli circumvoluta late cordato-ovata acuminulata apiculatave acuta integerrima interdum repandula; lobulus 4plo brevior cauli contiguus parallelusque tenui-cylindricus ; cellule parvee, mediz subelongate, ceeterze sub- quilaterze, pariete incrassato. Foliola dimidio folio longiora ovali-lanceolata (ex alis recurvis lineari- oblonga videntur) breviter bifida, sinu tenui, segmentis acutis margine recurvis. Flores dioici: @ in ramulo valde abbreviato terminales, quasi laterales. Bractew 3—4-juge, extime parvee, intime foliis caulinis 2plo et ultra longiores, basi erectse, apice plus minus squarroso-recurve liber subserratee complicato-bilobe, lobis oblique lanceolatis acuminatis, lobulis bracteoleque complicate laciniis apice suvuiatis. Inira florem pro more adveniunt folia 1-3-juga minuta normaliter saccato- lobulata. Perianthia vix emersa nigra anguste ovato-fusiformia trigona in rostellum longum subsensim attenuata. Calyptra duplo brevior, brevi- pyriformis albida, infra medium 4 ¢. crassa, apice demum ineequaliter 4-valvis. Pedicelius perianthio vix longior, infra perianthii apicem rima laterali emergens, albiaus opacus, cellulis angustis conformi- bus conflatus. Capsula globosa rufo-badia, profunde 4-valvis, cellulis bistratis, exterioribus latioribus intus nodosis, interioribus fibra spirali carentibus ; elateres capsula vix duplo breviores, valvularum dimidio supero adfixi, late unispiri, demum (capsula evacuata) devexi. Spore magne elateribus plus duplo latiores angulatz rufo-tuberculose. Plante mascule tenuiores. Andreecia ramulo minuto constantia, oblongo- globosa subcompressa folium axillare paulo excedentia; bractew 3—juge. Obs. The 9 flowers are secondary branches of the distantly bipinnate stem, so much shortened that all the leaves on them are (mostly) to be accounted bracts. 28, FRULLANIA ATROSANGUINEA, Tayl. in hb. Jameson. Hab. in monte Pichincha, ubi plantas 9 et ¢ legit beat. JAmEson; ipse in montibus Tunguragua et Guayrapata sterilem solum legi, too, lob 5x15, ¢ g@—iss J 13x85 br 15; per Bax -75, rostellum °35™™. Caules penduli pedales debiles flexuosi, laxe et fere simpliciter pinnati, ramulis perraris, (cum foliis) sanguineo-rubentes, apicibus novellis flavidi. 40 FRULLANIA. | METEORIOPSIS Folia dissita cauli circumvoluta cordato-ovata, acuta apiculata vel sub- obtusa, basi fere symmetrica, auriculis rotundatis, postica submajore e sinu (cauli contiguo) lobulum folio 38ple breviorem erectum clavatum compressulum proferente ; cellule parve subconformes subeequilaterve, pariete incrassato, foliolorum pallide elongatze. Foliola foliis haud multo breviora pallida ovato-lanceolata, subacuta breviter (ad }) bifida, alis recurvulis, segmentis contiguis acutis subplanis. Flores dioici: @ laterales. Bracteze intime foliis caulinis subminores inequilobe, lobo ovali apiculato - acuto, lobulo ovato - lanceolato acuminato ciliato ; bracteola bracteis eequilonga laciniato - ciliata complicato-biloba, lobis lanceolato-subuiatis flexuoso-acuminatis. Perianthia semiemersa obovato-oblonga, subtriplo longiora quam lata, ex apice lato abrupte longirostria, demum trifida. Capsula globosa 4- partita vix emersa. Amenta ¢ ramigena, folio axillari duplo longiora oblonga compressula ; bractew 6-jugee arcte equitantes cymbiformes, lobis subeequalibus semilunato-obovatis ultra medium connatis. Bracteola unaalterave, parva biloba, ad amenti basin adest ; caters bracteole obsolete. A F. atrata certe diversa videtur habitu flaccidiore, colore sanguineo ; foliis majoribus haud acuminatis—interdum obtusis, cellulis mediis haud elongatis ; foliolis longioribus ; bracteis longe brevioribus, lobis haud acuninatis, lobulis ciliato-laciniatis ; preecipue autem perianthio ex apice lato rotundato longirostri. 29. FRULLANIA PERUVIANA, Gottsche. G. L. et.N. ‘Syn. Hep.’ 465. In M. Guayrapurina Andium Peruvianorum, e rupibus arboribusque pendula, necnon in filice repens. “ Peruvia,” ‘Syn. Hepat.’ 1. ¢. #YOx7, “85x 6, lob 33 f* 5x3; 4x23 4x 718s br Lee °85, rostellum 6 ; ¢ gy—-2A5™™- Caules usque ad 12 pollices longi, tenuissimi, in caespites magnos, pallide virides flavidosve pendulos imbricati, laxe bipinnati, ramulis sepe fere capillaceo-attenuatis. Folia dissita suboblique cordato-ovato-triangularia acuminulata apicu- latave acuta, basi antica caulem late transeuntia convolutiva, cterum subplana, vel margine lenissime recurvulo; lobulus 3plo brevior semper fere evolutus subulatus, raro saccatus subeylindricus cauli subcontiguus; cellule minutule subelongate flexuose pellucide, Foliola duplo breviora distantia oblonga (subduplo longiora quam lata) planiuscula, basi vix cordata, apice ad vel ultra 4 bifida, sinu segmen- tisque anguste triangularibus acutis. Flores dioici : 9 ramulo brevissimo constantes, seepe crebri. Bracteze sub 5-jugee, interne foliis sat longiores suberectee profunde biloba com- plicatee, lobis omnibus tenui-acuminatis, anticis lanceolatis subinciso- serratis, lobulis imo longioribus duplo autem angustioribus, seg- mentisque bracteole angustee ad 4 usque bifidee complicate (basi cum altera bractea connate) laciniatis. Perianthia pallida ovali-fusiformia alte obtuse trigona sensim rostrata, rostello praelongo solo emerso. METEORIOPSIS | FRULLANIA. 41 30. FRULLANIA ACULEATA, Tayl.., Lond. Journ. Bot. 1846, p. 407 ; G. L. et N. Syn. Hep. Hab. Andes Quitenses, prope Cuenca, pl. ¢ (JAmEson in hb. Hook.) ; in M. Chimborazo, alt. 1500™, ad ramulos legit R. Spruce pl. 9 cum perianthiis, m. Aug. 1860. In insulis Galapagos legit DaRWwIN. F 18x°7, 16x °6, lob 2-25, c As; f'*-8x°3; br 25-3-:0; per 22x 1D ac Elatiuscula e rubro atra stratificata seepe pendula. Caules 3-6-pollicares tenues fragiles laxe pinnati subbipinnative intricati. Folia laxe imbricata late patula siccando sepius falcato-subsecunda, e basi biauriculato-cordata concavo-amplexante triangularia, in acumen subulato-setaceum flexuosum attenuata ; lobulus sub 8plo brevior tenuis cylindricus cauli appressus basi bifidus ; cellulee 75™™ longe, latitudine dimidio minores, rectangulares rhomboidezve, omnes fere zquales, paucissime basales subrotunde. Foliola plus duplo minora dissita lineari-oblonga ad 4 bifida, segmentis subulato-setaceis, basi perpaulo latiora subcordato - amplexantia, ceeterum subplana. Flores dioici :2 in ramo primario valde abbreviato terminales. Bractez confertze subappresse, intima majuscule libere bracteolaque bipartit, laciniis omnibus subequimagnis longe setaceo-acuminatis integerrimis vel supra basin posticam unidentatis. Perianthia immersa triquetro-fusiformia equilatera longissime rostrata demum apice trifida. “ Andreecia lateralia sessilia oblongo-rotunda ” (Tayl. 1.c.). Planta omnium Frullaniarum quam maxime singularis! aspectu Hypnum elodes potius quam ullam hepaticam referens. Suscenus V.—_THYOPSIELLA, 8. Elata stratificata, procumbens, erecta vel seepe pendula, pinnata 2-3- pinnatave, eleganter thyoidea, rufa pallidave, raro virescens nigres- censve, caule determinato nec indefinite prolongato. Folia imbricata patula, in sicco perseepe convolutiva, concava in plerisque, margine toto incurvulo, in paucis planiora margine (saltem postico) recurvulo, semicordato-ovata-oblongave seepe abrupte apiculata, raro acuminata vel mutica, pro more integerrima ; lobulus cylindraceus cauli subcontiguus et fere semper parallelus—raro parum divergens —szpe evolutus ; cellule plerumque parve, pariete incrassato. Foliola in plerisque dimidium folium subexcedentia, ovali-rotunda (e margine toto recurvo ad speciem spatulata) breviter bifida, apicibus seepius acutis, basi decurrente szpissime utrinque auriculata crispa- taque ; in paucis cladocarpicis majora oblata planioraque, interdum subintegra. Flores omnium dioici: 2 utplurimum in caule vel in ramo longiusculo terminales, in paucis ramulo brevissimo constantes (quasi-laterales). Bractez 3-5-juge bilobe (complicate vel solum concave) pro more acuminatz, lobulis bracteolisque seepissime spinulosis laciniatisve. TRANS. BOT. SOC. EDIN. VOL. XV, F 42 FRULLANIA. [THYOPSIELLA Perianthia plerumque emersa elongata rostellata, vel 3-carinata vel (in paucis) ecarinata cylindrica, in paucissimis pluricarinata, lzevia. Calyptra infra medium 4-6 cell. (rarissime solum 2 cell.) crassa. Capsula globosa. Andrecia ramigena, ramulo brevi compresso-globoso vel oblongo con- stantia ; bracteze 3-6-jugee arcte equitantes subequilobe diandre. Hab. Subgenus revera sylvestre, hominum vestigia pro more effugiens, nullis terris exul, in tropicis montanis sylvestribus valde frequens, in temperatis in planitie quoque degens, arboricolum et saxicolum. Distr, Ipse in America equatoriali 13 vel 14 species, omnes in deyexis Andium sylvaticis inter 330 et 4000", nullam in planitie Amazonica, legi; earum una (Fr. Brasiliensis), valde varians, per Americam tropicam in montibus ubique inventa est, alize paucee jam ante in Nova Granata, Mexico, etc., a Lindigio, Liebmanno aliisque lectz fuerunt ; plereeque tamen nove videntur. Ceeterze plurime species ab auctoribus jam ante descripte in terris tropicis et subtropicis Americz precipue crescunt, aliz autem in Asia et Africa necnon in insulis Oceanicis indigene sunt. In Europa species 3 v. 4 habemus, quarum una, fr. Tamarisct, in tota zona temperata boreali dispersa est. Of all the subgenera of Frullania this is the most widely distributed and the richest in species, of which all have the same somewhat rigid feather-like habit, and convex shining foliage as the common Fr. Tamarisct of our trees and rocks, recalling a branch of Arborvite. They grow in dense depressed patches, usually of a reddish hue—rarely pallid or black- ish—scarcely ever greenish. The plants are rarely shortened to an inch, and sometimes reach 6 or 8 inches in length, and they are regularly and closely bipinnate—rarely simply or triply pinnate. The leaves are mostly semicordato-ovate, more or less concave, especially at the apex, which is usually abruptly apiculate—rarely acuminate or muticous, very rarely serrulate. The small lobule is almost contiguous to the stem throughout its length ; normally it is a slender conico-cylindrical sac, but very often it is evolute and lanceolato-subulate. A minute process (“stylus”) is sometimes interposed between the lobule and the stem, but is oftener obsolete. Leaf-cells small, often subelongate (rhomboidal), with thickened walls, distinctly sinuate within. The underleaves are always longer than half the leaf, broadly oval—very rarely wider and reniform or orbicular, shortly bifid, with the margin in most species strongly recurved all round, often narrowly cordate—or rather sinuato-biauriculate: —at the base, the auricles sometimes projecting laterally (subhastate) ; in one species (fr. bicornistipula) they are nearly as large as the leaves, reniform, nearly entire, but with a slender horn-like process at each angle of the widely retuse apex. The inflorescence in all is dioicous ; the 9 flowers terminal on primary or secondary branches, in a few species quasi-lateral (cladogenous). Bracts in 3 to 5 rows, mostly free, larger than the leaves, acuminate and often dentate or laciniate, especially as to the lobules and bracteoles. Perianth elongate, normally trigonous —unicarinate beneath ; but in a few species it becomes inflated and cylindrical, losing all trace of keels, and at the apex is abruptly narrowed into a long tubular beak. In two S. Brazilian species, the trigonous perianth becomes pluricarinate, by the addition of intermediate keels of slighter elevation. The Thyopsille axe all truly wild plants, and as a rule avoid the THYOPSIELLA | FRULLANIA. 43 proximity of man. Yet they are not so often found buried in the depths of the forest as bordering mountain-streams, where they form a broad horizontal fringe on each side of the twigs of bushes and trees, or creep over and hang in tufts from branches and rocks. On bushy, stony hill-sides in the Andes, and on old lava streams scantily clad with a shrubby vegetation, where they are alternately exposed to a burning sun, and cooled and moistened by clouds that are rarely absent from the mountain-side for many hours together, as well as by the frequent heavy rains, is where they seem to most luxuriate. From the Amazonian plain they are apparently quite absent—unless a few exist near the sea- board, as they do farther north in the Guianas, and to southward in Brazil ; but from the mouth of the Amazon to the base of the Andes I did not meet a single species. In ascending the Andes the cladocarpous species are the first to appear, at about 400 metres, and they ascend no higher than 1600 metres. They are fine large-leaved plants, and at first sight look more like Madothecas than Frullanias. Low bushes of a Pilea, on the western declivity of the conical hill of Lamas, in the Peruvian Andes, are almost completely overrun with Fr. madothecoides S. and a large Lejeunea (L. devoluta 8.); Fr. bicornistipula grows both on the eastern side of the equatorial Andes (cataract of Agoyan, 1600™) and in the red-bark woods of Chimborazo, at 1200", on the western side, The acrocarpous species begin to appear on the slopes of the Andes at about the height where the cladocarpous species disappear, and probably extend upwards to the limit of arborescent vegetation, although I do not seem to have gathered any above 3500 metres. Fr. Brasiliensis (includ- ing its subspecies F’r. cylindrica, and several varieties) is as widely and commonly distributed in the mountainous parts of tropical 8. America as Fr. Tamarisci in Europe, and is still more variable, but always preserves its perfectly smooth cylindrical perianth. Absent from the great plains of the Amazon and Orinoco, it abounds in the middle wooded region of the Andes, on both sides of the chain, and all through the mountains of South Brazil, as well as in the West Indies and Mexico. Along with it, in the Peruvian and Quitenian Andes, grows Fr. strobilantha S.—a beautiful species, with acuminate leaves, and involucres that simulate fir cones, from the large turgid, chaffy, closely-packed bracts with recurved points. I gathered some fourteen species of Thyopsiella in the Andes, but the total number of known species in the world reaches perhaps thrice that ‘number. Fr. Tamarisci occurs throughout the north temperate zone, but scarcely overpasses its limits. Abundant in Europe, it is much rarer in America, where it is partially replaced by an allied species, Wr. Asa- grayana. We have besides it in Europe two or three other species ; N. America and the Atlantic islands furnish a few more ; but the great bulk of the species are tropical, especially S. American and Malayan. A few Cape species have been identified with Indian, but it is doubtful if any Asian and American species be really identical ; and the Austra- lasian species seem all peculiar. I. Crapocarpica.—Flores 2 quasi laterales, ramulo brevissimo constantes. —Forsan melius cum subgenere antecedente (Meteoriopst) conjungende, distant autem species caule determinato, nec indefinite prolongato, et foliolis magnis latis. 31. Fr. bicornistipula.—Elata subtripinnata. F. magna semi-cordato- 44 FRULLANIA. [ THYOPSIELLA oblonga abrupte cuspidata apice subdentata, lobulo minutissimo sepe basi subealearato. Foliola maxima reniformia subintegra apice late retuso ex utroque sinus angulo cilium corniforme proferentia. Br. subequilobe basi ciliatee, lobis lanceolatis acuminatis idem ac bracteole bifidee segmentis inciso-dentatis. Per. imimersa fusiformia tricarinata. 32. Fr. formosa.—Tripinnata. F. arcte imbricata oblique semicordato- oblonga subapiculata, lobulo minuto digitiformi, vel seepe evoluto, c. mediis parvis. Foliola sat magna oblato-orbiculata basi subcor- data, apice ad 4 bifida, segmentis subapiculatis. Br. bracteola- que bifidee ciliato-laciniatee, laciniis crispis interdum iterum lacinulatis. 33. Fr. madothecoides.—Elata bipinnata. F. semicordato-ovata subapicu- lata raro* mutica, lobulo semper evoluto, c. mediis mediocribus. Foliola foliis } breviora oblongo-orbiculata subdecurrentia apice fere ad 1 bifida, segmentis acuminulatis, margine utrinque 1-vel pauci- dentata. Br. spinulosze, bracteola ciliato-laciniata. II. Acrocarpica.—TF lores 2 in ramo longiore, sepe iterwm ramoso, terminales. A. Folia margine postico recurvo, antico incurvo. a. Perianthia apice saltem trigona. 34. Fr. strobilantha.—Elata bi-tripinnata. F. cordato-ovata subacuminata apiculatave, sepe apicem versus serrulata, lobulo parvo, caulino semper evoluto. Foliola $ breviora ovato-oblonga cordato-amplexi- caulia, apice ultra } bifida, laciniis acuminatis acutis recurvis. Br. 3-juge magne ventricoso-concave paleacee subzquilobe, lobis acuminatis interdum apice serrulatis ; bracteola magna orbiculato- ovata, basi turgida, apice breviter bifida, laciniis angustis perseepe integerrimis. Per. vix emersa ovali-fusiformia, supra medium trigona, demum profunde 5-fida, laciniis apice coherentibus. 35. Fr. Beyrichiana.—Bipinnata. F. cordato-ovata apiculata, lobulo majusculo seepius evoluto. Foliola late oblonga ad 4 fere bifida, segmentis acutis, basi utrinque auricula crispa aucta. Br. 3-jugze foliis paulo majores profunde complicato-bilobe, ad sinum 3-laciniate, lobis omnibus tenui-acuminatis ; bracteola oblongo-lanceolata carinata ultra 4 bifida, segmentis sublaciniatis. b. Perianthia cylindrica, omnino ecarinata. 36. Fr. tubiflora.—Humilior arcte bipinnata. F. fere divergentia oblique ovato-lanceolata brevi-acuminata, apice seepe subdenticulata, lobulo parvo raro evoluto, Foliola oblonga basi breviter biauriculata, apice ad } bifida, segmentis acutis. Br. 5-jugze laxe decurvo-secunde, intime magne concave vix ad 4 bifide, subintegerrime, lobis bracteoleque segmentis pungenti-acuminatis. Per. prelonga apice demum. 5-fida. B. Folia toto margine plus minus incurvo, exindeque concava. a. Perianthia normaliter cylindrica ecarinata. 37. Fr. Brasiliensis—Elata subbipinnata. F. semicordato-oblonga, ovatove-oblonga, rotundata apiculata, rarissime mutica, lobulo THYOPSIELLA | FRULLANIA. 45 4plo breviore. Foliola haud duplo breviora late oblonga breviter bifida, segmentis apiculatis, basi utrinque sinuato-auriculata, margine toto valide recurvo. Br. foliis $ longiores subequilobe, lobis subacuminulatis, posticis idem ac bracteole segmentis sub- spinulosis laciniatisve. Per. alte emersa longirostria demum plurifida. b. Perianthia trigona. 38. Fr. closterantha.—Gracilis bipinnata. F, subimbricata divergentia semicordato-ovalia abrupte apiculata, lobulo cauli contiguo vel seepissime evoluto. Foliola majuscula obovato-oblonga breviter bifida, segmentis acutis, basi anguste biauriculata. Br. iis Br. Brasili- ensis subconformes. Per, alte emersa tenui-fusiformia valde obtuse trigona rostellata ore demum 4~-6-fida.—Var. Canelensis. Elata tenuis tripinnata. FF. vix imbricata oblongo-rotunda apiculata, lobulo 3plo breviore fere semper evoluto. Foliola fere duplo breviora late oblonga ad } bifida, segmentis acutis, basi sinuato- biauriculata. Br. foliis longiores, lobis acuminatis, lobulis duplo minoribus bracteoleeque segmentis angustis laciniato-ciliatis. 39. Fr. rigescens—Elata robusta inequaliter 2-3-pinnata. FF, arcte imbricata semicordato-oblongo-rotunda obtusata cum apiculo minuto, auricula antica magna crispa, lobulo minuto seepius evoluto. Foliola majuscula orbiculata, basi parvi-biauriculata, apice ad } bifida, segmentis subapiculatis. Br, confertissimz, lobis longe apiculatis spinulosis, lobulis bracteoleeque magne segmentis longissime flexuoso- laciniatis. Per. alte emersa fusiformia, supra medium obtuse 3—4- gona, sensim rostellata.—Var. mollicula, magis regulariter pinnata, foliis paulo angustioribus, foliolis conformibus, bracteis autem pro more integerrimis, bracteola raro lacinia una alterave aucta ; perianthiis longe tenuioribus triplo longioribus quam latis. 40. Fr. clandestina.—Elata valida 2-3-pinnata. F. subimbricata semi- cordato-orbiculata minute apiculata valde concava, lobulo fere 4plo breviore nunquam evoluto. Foliola magna cordato-orbiculata basi subcrispula, apice emarginata, sinu lato triangulari, segmentis prelatis acutis. 41. Fr. Sabanetica.—Elongata pendula laxe bipinnata. F. subimbricata semicordato-ovato-oblonga subacuta tenui-apiculatave, margine supero involuto, lobulo tenui interdum evoluto. Foliola haud duplo breviora subrectangulari-oblonga ad } bifida, margine basi recurvo. Br. maxime foliis fere triplo longiores subintegerrimz, lobulis bracteoleeque profunde bifidee segmentis tenuissime acuminatis. Per. emersa nigricantia fusiformia trigona, carinis lateralibus devexis. 42, Fr. flexicaulis.—Elata pendula valde flexuosa inzequaliter pinnata. F. subimbricata late cordato-ovata apice valde decurvo rotundata, mutica, lobulo tenui cylindrico-companulato. Foliola ovato-oblonga angulato-repanda, ad } bifida, segmentis acutis, basi obtuse sub- hastata. Br. lobis ovatis obtusatis subintegerrimis, lobulis bracteol- eeque segmentis longe acuminatis crispato-laciniatis. Per. alte emersa nigricantia obovato-oblonga triquetra subtruncata longi- rostria, 43. Fr. hematocysta.—Nigro-sanguinea subpinnata. F. late imbricata late cordato-ovata brevi-acuta subapiculata concava, lobulo majusculo erasse cylindrico paulo divergente. Foliola orbiculata subdecurrentia emarginata, dentibus acutis, margine infero valide recurvo, 46 FRULLANIA. [ THYOPSIELLA 31. FRULLANIA BICORNISTIPULA, Spruce. (Tas. II.) Hab. Andes Quitenses, ad pedem montis Tunguragua juxta fl. Blanco ostia et in montis Chimborazo devexis occidentalibus, alt. 1500™, in arborum ramulis. F23x1:3, 20x11, lob 15-2, ¢ dy; f'* 15x20, 1-4 x0Seeie ae br! 2°25 x1:0; per 2.0 x "75™™, Elata pendula olivaceo-virens rufulave. Caules 3-6-pollicares im- bricati bi-tripimnati, ramis dissitiusculis. Folia imbricata divergentia subplana oblique semicordato-oblonga vel subovata abrupte cuspidata, apicem versus paucidentata, angulata, vel integerrima, basi antica caulem longe transeuntia, postica sinuato-lobulata, margine toto lenissime recurvula; lobulus pre- minutus folio 12-15plo brevior, cauli subcontiguus parallelusque, basi in calcar breve seepe productus ; cellule parvule subelongate opace, pariete incrassato intus 6-sinuato, subequimagne, infime sole cxteris multo majores discoloresque. Foliola imbricata maxima, latiora quam longa, reniformi-orbiculata, rotundata, retusula vel late subemarginata, ex utroque sinus angulo cilium corniforme #™, longum, cellulis 7-8 uniseriatis conflatum, rectum v. curvatum, proferentia, fere planissima, solum juxta basin canaliculatam amplexantem margine recurvula. Flores dioici: 9 crebri, ad ramos primarios, raro ad secundarios, nun- quam ad ipsum caulem, ramulo abbreviato constantes, quasi-laterales. Bracte 5-6-jugze, suberectee conferte, intimeze foliis paulo longiores brevissime connate ad 3 bilobe, lobis lanceolatis acuminatis equilongis, postico angustiore, ipsa basi ciliis paucis longis ornate, dein brevi spatio integree, ad lobos profunde inciso-dentatie ; bracteola longe cuneato-oblonga ultra + bifida, eodem modo ae bractez inciso- dentata basique ciliata ; br. inferiores sensim minores liberze minus dentatee, lobulo tamen evoluto, infima minuta sola nonnunquam saccifera vel etiam ad solum sacculum redacta. Pistillidia 2. Perianthia immersa, inferne rufa apice pallida, fusiformia tricarinata sensim rostellata brevia, demum trifida. Calyptra subglobosa tenuis, dimidio inferiore 2 cell. crassa. Capsula globosa, stratis cellularum duobus conflata. Elateres a medio valvularum ad apicem usque sparsi, persistentes elongati utrinque truncati late unispiri, plerumque nudi, folliculo dissoluto. Sporee maxim, elaterum diametro 4plo latiores, flavee angulatee pulchre rufo-tuberculate, tuberculis humili- bus erebris eequidistantibus. 32. FRULLANIA FORMOSA, Spruce. Hab. Ad pedem Andium Quitensium orientalem, secus fluvium Bom- bonasa, in arborum ramulis. FOX 7, 0b 1D, ¢ ays fe OX efor Loo Elata rufo-badia horizontaliter patula. Caules 3-pollicares tripinnati, frondem triangulari-plumeeformem sistentes. Folia arcte imbricata, subplana, apice decurvula, valde oblique oblonga abrupte acuta interdum minute apiculata, basi antica profunde semicordata (auricula subrotunda); lobulus minutus conico- cylindricus cauli proximus et subparallelus, sepe evolutus lanceo- THYOPSIELLA | FRULLANIA. ; 47 latus canaliculatus, cellule parvee, plures inferiores majores dis- coloresque. Folia ramea ramulinaque longius apiculata, lobulo semper perfecte voluto. Foliola imbricata foliis eequilata, breviora tamen, oblato-orbiculata, ad + bifida, rima angusta, segmentis subapiculatis planiusculis, basi subcordata amplexicaulia margineque ibidem tam recurvo ut spath- ulata videantur. Flores dioici: Q quasi-laterales secus caulis ramorumque primariorum apicem oriundi, crebri, assurgenti-secundi. Bracteze 5-jugze conferte recurvo-patule complicate subequilobe, intime folus $ longiores acuminulatze, bracteolaque bifida toto fere margine pulchre ciliato- _laciniate, laciniis flexuosis aliis iterum lacinulatis ; bracteze exteriores sensim minores pariter laciniatz. Perianthia (valde juvenilia) trigono-prismatica rostellata. Pulcherrima species, Fr. ulotriche Tayl. et Fr. Deppit G. subsimilis, nulli autem arcte affinis. Habitu Wr. replicatam, Nees. magis refert, differt praecipue lobulis erectis nec reflexis. 33 FRULLANIA MADOTHECOIDES, Spruce. Hab. Andes Peruvianos, in monte Lamas, alt. 750™, ad fruticum ramulos. #18 X 1:2, 1°65. 171, lob °6, ¢ aya 5 f 11x 85™, Caules 3-5-pollicares, horizontales pendulive stratificati, bipinati, aliis ramis elongatis, aliis brevissimis foemineis. Folia pallida flavo-virescentia vel etiam albida, solum ramorum apicem versus subrufa, imbricata, subdivergentia, planiuscula, medio parum concava, margine postico toto recurvulo, semicordato-ovata sub- abrupte acuta obtusulave, plerumque brevi-apiculata raromutica, auricula antica oblonga subcircinata ; lobulus cauli contiguus semper evolutus folio triplo brevior subulatus canaliculatus ; cellule medii folii parvulze subelongatee pellucide, basin versus sensim majores intus sinuate, secus marginem minores subeequilateree. Foliola $ minora imbricata oblongo-orbiculata vel subquadrata vix ad medium usque acute bifida, medio margine utrinque grandius- cule 1-2-dentata, segmentis apicis planis acuminulatis integerrimis vel externe angulato-dentatis, basin versus profunde canaliculata marginibus recurvis, basi ipsi utrinque subsinuata parum decur- rentia. Flores dioici : 2 crebri in ramulis abbreviatis ad caulem precipue, rarius ad ramos primarios, terminales. Bracteze 3—5-juge, interiores in- * erescentes recurvo-patulz bipartite, lobo ovato sensim acuminato margine interno basin versus paucilaciniato, raro toto fere spinuloso ; lobulo paulo minore ovato-lanceolato spinuloso bracteola oblonga ad 3 bifida, laciniato-ciliata. Pistillidia 4-longius-cula intra perianthium valde juvenile lageniforme semirecepta. Obs. Stirps pulcherrima, inter Thyopsiellam et Meteoriopsin fere media. Fr. Griffithsiana Tayl. (e Brasilia australi) quoad flores Q cladogenos ete. affinis, folia habet multo minora valde concava, margine toto (basi excepta) recurvulo ; folia suborbiculata basi hastato-cordata, segmentis apicis alisque valide recurvis. Quum nostratis perianthia nondum cog- nita sunt, anne eodem modo plurisulca dubium remanet. 48 FRULLANIA. [ THYOFSIELLA 34. FRULLANIA STROBILANTHA, Spruce. Hab. Andes Quitenses, ad fruticum ramulos secus fluvium Pastasa, infra Banos, alt. circiter 1500" ; Andes Peruvianos, ad arbores et rupes montis’ Campana, alt. 1200-1500™. F15x°8, lob 15-5, cay 5 fl* 10x ‘75 ; br 3-2 longer 5 per 35x 1'5™™. Caules 2-4-pollicares in cespitem densum seepe suberectum_ stratificati, bi-tri-pinnati, seepe plumeformes, ramis subdivergenti-decurvulis. Folia e pallide viridi rufo-badia, interdum albescentia, fere horizontalia, in sicco cauli plus minus circumyoluta, e basi cordata ovata suba- cuminata acutissima sepeque tenui-apiculata, integerrima v. apicem versus serrulata, margine infero toto recurvo, supero anguste in- curvo ; lobulus parvus cauli approximatus et subparallelus, fol. caulinorum semper evolutus lanceolato-subulatus canaliculatus, ramulorum saccatus breviter conico-campanulatus v. subeylindricus ore bifidus ; cellule parvee subelongatze, inferiores mediz longiores discoloresque. Foliola foliis dimidio breviora subimbricata ovato-oblonga, basi lata cor- dato-amplexicaulia, apice ultra 4 acute bifida, laciniis acuminatis acutis recurvo-hamatis, alis recurvis, toto medio carinato-canaliculata. Flores dioici: @ in ramo brevi longioreve terminales, sepe cum in- novatione. Bractes 3-jugze rufo-flavide paleaceze basi ventricoso- concave arcte imbricatee, apice squarroso-recurve, intime folia plusquam duplo excedentes, liber, subzqualiter bilobee, lobis breviuscule tenui-acuminatis integerrimis vel ad acumen serrulatis, interdum supra bracteze basin posticam lacinula aucti ; bracteola magna orbiculato-ovata acuminata, basi turgida, apice breviter bifida, laciniis tenui-subulatis serrulatis vel persepe integerrimis. Perianthia ovali-fusiformia inferne teretia supra medium obtuse trigona acuminata sensim longirostria (rostello solo sepe emergente), demum ab apice profunde 5-fida, laciniis lanceolato-subulatis apice sepe cohzerentibus. Andreecia in planta tenuiore creberrima, oblongo-globosa, folio axillari longiora ; bracteze 4-7-jugee iis Fr. Brasiliensis simillimee. Obs. I at first thought that this might be the true F’r. macrocephala L. et L. in Lehm. nov. et minus cogn. stirp. V., p. 20, but the description in ‘Syn. Hep.’ p. 460 makes no mention of the large turgid chaffy bracts, imbricated so as to resemble a fir-cone ; nor of the fusiform perianth, tapering gradually into a trigonous beak, whose point barely peeps out from the involucre ; nor of the acuminate segments of the underleaves, which in the Synopsis are described simply as “ ovalia, bifida, laciniis revolutis.” 35. FruLtuania Beyricuti, L. et Lindenb. Syn. Hep. 460. Hab, Andes Peruvianos, in M. Guayrapurina, alt. 900™, supra folia emortua filicesque: pl. ? sola, sterilis. Brasilia (Bryricn). Peruvia (Porpria). Silla de Caracas (Mortt2). F11x°75, lob °45, ¢ py 3 f* 8x °55 3 br 15; br* 12x oe Prostrata rufescens. Caules 3-pollicares nigrescentes, bipinnati, ramis late patulis (angulo axillari sub 80°), frondem lanceolatam sistentes. THYOPSIELLA | FRULLANIA. 49 Folia imbricata patenti-decurvula, cordato-ovata ex subacuto apice apiculata, basi valde inzequalia antice longius supra caulem descen- dentia et transeuntia, margine repandulo postico recurvulo; lobulus fere triplo brevior, raro saccatus ovali-cylindricus, plerumque evolutus lanceolato-subulatus; cellule parvule elongate: flexuose subpellucidee, pariete incrassato. Foliola vix $ breviora late oblonga fere ad 4 bifida, sinu segmentisque acutis, basi utrinque in auriculam sinuato-crispam oblongam producta, margine toto anguste recurvo. Flores dioici:?in ramo primario terminales, semper fere innovatione ramosa suffulti. Bracteze conferts suberectze foliis longiores com- plicate ad 4 alt. bilobse; lobi antici lanceolati tenui - acuminati angulati fere integerrimi; lobuli parum minores caudato-acuminati basi laciniis 3 aucti; bracteola libera (bracteis inclusa imbricataque) oblongo-lanceolata complicato-carinata ultra medium bifida segmentis angustis sublaciniatis spinosisve. Fr. tubiflora 8. folia habet magis acuminata, bracteas (in ramo Q incrassato) dissitas homotropas haud caudato-acuminatas. Obs. The leaf subtending a branch is obliquely cordate—the antical auricle being slightly larger than the postical—and the lobule is repre- sented by two narrow lanceolate leaflets, whereof the outer is connate at the very base with the lobe and also with the inner and smaller leaflet : both are internal to the large lobe, or leaf proper. 36. FRULLANIA TUBIFLORA, Spruce. Hab. Andes Quitenses, in valle fluvii Pastasa, loco Antombos, alt. 1500™, ad ramulos, cum Fr. Brasiliensi et strobilantha. F'-9x ‘5, lob -2,¢ g—-sb3 f* 6x4, 4x 2; br 20x14; br™ 1:9 1-25; per 35 x 1.3m™™, Subpusilla, e rufo-purpureo nigrescens. Caules 1} -pollicares arcte bipinnati, ramis brevibus. Folia subimbricata fere divergentia oblique ovato-lanceolata, basi anguste - semicordata, apice sensim vel subabrupte breviter acuminata ibidem- que spe angulata vel subdenticulata, margine supero anguste incurvo, infero recurvo; lobulus plus 4plo brevior cauli parallelus et subcontiguus conico-cylindricus, ore obliquo; cellule fere minutulee elongate flexuoso-rhomboidee, pariete valde incrassato, plures inferi- ores multo majores. Folia ramulina sensim multo minora, eorum lobulo tamen caulinorum eequimagno, apice sepe distincte serrulata. Foliola } minora subimbricata subappressa, oblonga (ramea angustiora) -@ margine toto anguste recurvo ad speciem rectangularia, basi breviter biauriculato-cordata vix sinuata, apice ad vel ultra } sub- obtuse bifida, segmentis acutis. Flores dioici: 9 in ramo superne incrassato terminales; bracteze 5-jugee laxie decurvo-secundee (folia Sendinere haud male simulantes),intime foliis duplo longiores ovatze valde concave vix ad $ bifidee, segmentis haud ~ longe sed acutissime acuminatis repandulis, postico sat minore inzegualiter bilobo vel medio margine spina aucto; bracteola late ovalis ad medium fere bifida, segmentis tenul-acuminatis integerrimis. Perianthia alte emersa, foliis fere 4plo longiora, cylindracea levissima ex apice rotundato rostellata, demum breviter 5-fida. Fr. macrocephala L. et L. perianthia (ac im nostra) ecarinata-ovata vero, nec cylindrica—habet; foliis longe acuminatis primo visu differt. TRANS. BOT. SOC, EDIN. VOL. XV. G 50 FRULLANIA. [ THYOPSIELLA 37. FRULLANIA BRASILIENSIS, Raddi. Crypt. Brasil. in Mem. di Modena, t. xix. Hab. In Andibus Quitensibus et Peruvianis sylvaticis, alt. 1000-2500, sat frequens, ad arborum et fruticum ramos. F 10x ‘6, lob 1°5, ¢ Ao—gy; f'* 65 x 5; br 1°5; per 2°75 x "75™™, Elata rufescens stratificata, procumbens y. ex p. pendula. Caules 3-6- pollicares bipinnati v. pinnatim decompositi. Folia subimbricata, angulo fere recto divergentia, subplana v. caviuscula, e basi obliqua semicordata (auricula antica circinata) oblonga, apice rotundato apiculata; lobulus 4plo brevior cauli contiguus cylindricus, sepe evolutus subulatus canaliculatus ; cellule subminute opace, pariete incrassato, subbasales medize multo majores discolores v. fere concolores. Foliola haud 2plo breviora contigua late oblonga basi sinuato-con- stricta longiuscule auriculato - cordata—vel subsagittata—apice ad 4-4 alt. bifida, segmentis apiculatis cucullato-recurvis, margine toto anguste valide recurvo. Flores dioici: 9 terminales; bracteze 3-4-jugze, intime f. caulinis dimidio majores suberectee parum ineequilobe, acuminulatee vel solum acutee apiculateeve, lobis anticis dente uno alterove spinulosis, lobulis cum bracteola plus minus alte connata parce spinuloso-dentatis lacini- atisve. ; Perianthia bracteas fere duplo superantia, basi rufa apice albido-viridia flavidave, e basi conica cylindracea ecarinata, ex apice turgido rotundato longirostria, demum ore plurifida. Calyptra basin versus 6-cell. crassa, superne sensim tenuior. Capsula globosa exserta. Pedicellus cellulis pluristratis conformibus constans. Amenta, framigena folio axillari longiora compresso-globosa, basi foliis paucis rudimentariis stipata; bracteze propriz sub 6-jugee arctissime equitantes subopposite, fere dolabriformes subturgidee aequilobe, Antheridia bina majuscula tenuissime pedicellata. Bracteole lineares bidentate hinc v. seepe utrinque bracteis connate. Obs. In montibus totius Americ tropicee valde abundat. Fr. Brasili- ensis; in planitiebus mullibi (quantum scio) invenitur. Varietates innumeras cognoscimus; sequentes tres ipse legi. Var. cylindrica (Fr. cylindrica Gotts.) subvar. Lindigii Gotts. Hep. N. Granat. 77. Folia ovata ovatove-oblonga, apice valide decurvo subobtuso minute apiculata. Foliola submajora fere orbiculata. Bractez svepe basi liberze, bracteolaque margine laciniatee. Perianthia apice demum 3-5-fida. Hab. Andes Quit. juxta fl. Pastasa, loco Loca del Rio Verde. Cum exemplaribus Novo-Granatensibus a Lindigio lectis, in herb. amicissimi Lindbergii asservatis, perfecte congruit.— Forma heterocalyx adest perianthiis maturis fructiferisque, aliis ultra bracteas vix emergentibus, apice v. etiam fere a basi obtuse trigonis triplicatisve sensim rostratis, aliis (in eadem stirpe) forma cylindrica elongata normali. Talia perianthia abbreviata pro more in caulis apice corymbose congesta sunt. Var. elegantula 8. Tenella eleganter bipinnata, vel magis elongata ramis paucioribus ineequilongis. Folia semicordato-ovata ovatove-oblonga apice parum decurvo acuta obtusave—nunquam apiculata, Foliola basi perobseure biauriculata. Flores @ ad ramos ramulosque superi- ores terminales, creberrimi; bractearum lobuli bifidi sublaciniati— THYOPSIELLA | FRULLANIA. 51 interdum fere «qualiter 4-fidi; bracteolee segmenta integerrima vel sublaciniata. Perianthia iis F, brasiliensis conformia, apice demum sub 8-fida.—Hab. in montibus Chimborazo et Azuay.—Pro specie propria fere habenda. Var.! robusta 8S. Elata rufo-badia-nigrescensve. Folia submajora apice fere cucullato minutissime apiculata v. sepe mutica. Bractese integerrimz vy. subspinulosze. Perianthia alte emersa fusiformi- cylindrica apicem latum versus obscure trisulea.—Hab. in monte Tunguragua. 38. FRULLANIA CLOSTERANTHA, Spruce. Hab. In fl. Pastasa ripis, ad fl. Verde ostia, alt. 1400™, ramicola. F 8x ‘55, lob °35, ¢ 35, f ramea ‘5, lob 15; f -6x°45,-7x°55; br 146— 2°05; per 4:0 x 1:0™2. Plantz graciles 1}-3-pollicares, facie Ir. Brasiliensis var. elegantule, concinne bipinnate et in frondem latam expansive. Folia subimbricata planiuscula vel concava divergentia, oblique semi- cordato-oblonga-ovaliave, ex abrupto apice apiculata—ramea apiculo longiore cuspidata ; lobulus fere semper explicatus subulatus, raro {ramulorum) conico-cylindricus erectus folio plus triplo brevior ; cellulee parvee, pariete incrassato. Foliola sat magna (=folii {—2) obovato-oblonga, basi anguste hastatim- cordata, margine toto valide recurvo, apice ad 3-4 bifida, segmentis reeurvis apiculato-acutis. Flores dioici: 2 terminales. Bracteze 3-4-jugee arcte imbricata concave, is Fr. Brasiliensis sat similes, intime cuspidato-acuminatee paucispine, lobulo inqualiter bifido; bracteola cum altera bractea leniter connata—vel seepe adnata, nempe intra ejus marginem eidem adfixa— ovali-lanceolata, ad 4 fere bifida, subspinosa, segmentis acuminatis. Perianthia primum subinclusa demum alte emersa, foliis 4-5-plo longiora, tenui-fusiformia, haud teretia sed valde obtuse trigona, apicem sensim rostratum versus magis distincte trisulca, demum ore 4-8-fida. Calyptra plus duplo brevior, inferne cellulis 4—5-stratis conflata. Pedicellus sat longe exsertus, demum (capsula globosa evacuata) deflexus. Obs. Anne eadem ac Fr. triquetra L. et G. Syn. Hep. 780, in Mexico lecta; que tamen nomini male respondet, quum perianthia haud “triquetra” descripta sunt, sed “ovata apice valde attenuata, dorso ad apicem vel sulcata vel obsolete carinata ventre obtuse unicarinata.” Eperianthii forma, caule simpliciter pinnato, ete. diversam speciem censerem.—Fr. Triane G. Hep. Novo-Granat. p. 79—a cl. auctore in- complete descripta—differre videtur foliis breviapiculatis, et bracteis solum apiculatis—nee cuspidato-acuminatis, ac in nostra.—Fr. Bey- richiana, foliis margine postico recurvis—nec toto ambitu incurvis, facile distincta. Var. hylonoma S.—F 1:0x ‘7, lob °3; f -65 x °55, -4x ‘32°; br 13x °45; br’ 1:2 x -6™".—Elatior pendula 3-6-pollicaris tripinnata. Folia majora, brevius apiculata, lobulo pro ratione minore semper fere evoluto. Foliola foliis duplo fere breviora oblonga basi sinuato- biauriculata. Bracteze minores quam in typo, lobulis idem ac bracteolze segmentis laciniato-ciliatis—In monte Abitagua sylvee Canelos, ad arbores, sterilis. 52 FRULLANIA. [ THYOPSIELLA 39. FRULLANIA RIGESCENS, Spruce. Hab. In monte Lamas Andium Peruvie, alt. 750™, inter fruticulos ad terram saxosam. F 12x1-°0, lob 2, ¢ 4-sy; f'* °75x ‘8; br 18-20; per 30x 1-:0™. Elata badia sioaparacrehre rigidula dense suberecte czespitosa. Caules 3-4-pollicares, 2-3-pinnati, ramis ramulisque valde ineequilongis, his seepe decurvo-squarrosis. Folia confertim imbricata semicordato-oblongo-rotunda apice decurvo obtusata minutissime apiculata, auricula antica magna margine crispa; lobulus posticus minutus (lobo 6plo brevior) semper fere evolutus subulatus, rarissime secus ramulornm apicem saccatus conico-cylindricus ; cellule parvee, plurime basin versus majores discolores (,4,"™, flavide). Foliola majuscula imbricata orbiculata, basi abrupte angustata deorsum in auriculas duas parvas producta, apice ad } usque acute bifida, segmentis late ovatis acutis subapiculatisve, margine subrecurvo. Flores dioici : 9 terminales in ramo svepe brevi. Bracteze 5-juge confer- tissime appresse, intimee foliis sub-majores concavee subconnatz vel liberze, lobis ovatis acutis longe apiculatis spinulosis, lobulis (szepe bifidis) ut et segmentis bracteole magne ovate bifidee acuminulatis laciniatis, laciniis longissimis flexuosis. Bracteole exteriores bifidee dein profundissime laciniatze vel potius pinnatifidee. Perianthia alte emersa fusiformia, a basi ultra medium subteretia, superne obtuse 3-4-gona, vel melius 3—4- plicata, sensim in rostellum attenuata (i.e. apice subulata), demum 4-fida. Ramus § interdum elongatus, innovando 2-4-florus. Var. mollicula. Tenuior, mollior, magis zqualiter bipinnata. Folia - laxiora sublongiora. Bracteze pro more integerrime ; bracteola raro lacinia una alterave armata—In monte Campana, Lamas parum distante. FRULLANIA CLANDESTINA (M. et N). Lejeunea clandestina M. et N. Ann. Sc. Nat. (1836); Fruilania el. G. L. et N. Syn. Hep. 457. Hab. Rio Verde (Pastasa) ad frutices, cum F. Brasilienst. Planta ¢ sola. F9x'9, cts; f 75x85; lob f, :25™™, Elata valida e pallido rufescens, 4-5-pollicaris, bi- et sub tri-pinnata. Folia subimbricata oblique semicordato-orbiculata vel-subovato-orbiculata (tam lata quam longa) concava, margine toto incurvulo, apice sub- cucullata minuteque tenui- apiculata ; ; lobulus fere 4plo brevior cauli contiguus parallelus, semper saccatus ovalis; cellule parvee rhom- boideo-oblonge toto ambitu valde incrassate, intus 6-sinuatee, fere vacuze, basin versus paulo majores discoloresque. Lobulus nunquam evolutus, tectus.—Folia ramea longius apiculata, lobulo pro ratione majore ovali-conico ; omnia siccando convolutiva. foliola perpaulo minora oblato-orbiculata, basi lata cordata suberispula non autem sinuata, apice brevi-emarginata, sinu late triangulari obtuso, segmentis prelatis apiculato-acutis sed e margine toto re- curvulo mutica videantur, a basi ad apicem usque late unisulea, as THYOPSIELLA | FRULLANIA. 53 Amenta ¢ ramulo brevi (ad ramos primarios secundariosve) constantia, folio axillari sublongiora ; bracteze 3-5-jugze arcte equitantes navicu- lares subzequaliter bilobze, lobis late semilunatis acuminulato-acutis. Cum descr. F. clandestine Syn. Hep. congruit quoad folia, foliola magna brevissime emarginata, etc.; in illa tamen lobulus interdum evolutus invenitur, quod 1 in nostra nunquam vidi. Quum tamen omnes Frullanie eodem modo plus minus variabiles, vix pro distinctione habendum est. 41. FRULLANIA SABANETICA, Gottsche. Hepat. Novo-Granat. p. 76. Hab. In monte Guayrapata Andium Quitensium, ad ramulos. In Andibus Granatensibus ad Sabaneta a cl. Linpie antea inventa. HAG -75, lob 3, egw 3 f* “75x55 br 3:0; per’ 3-6™™, Ceespitoso-pendula e viridi rufo-atra; caules 3—-6-pollicares laxe bipin- nati. Folia subimbricata ovato-oblonga, basi semicordata, ex subacuto decurvo apice tenui-apiculata, margine supero anguste involuto; lobulus 4plo brevior tenuis cauli subcontiguus fereque parallelus clavato- eylindricus, interdum _ evolutus lanceolatus acuminatus ; ; cellule parvee opacee subelongatze intus conspicue 6-sinuate, inferiores sensim majores. Foliola subdimidio minora subimbricata rectangulayi-oblonga—e media basi canaliculata alisque ibidem recurvis subcuneata videntur—apice triangulari ad } acute bifida, laciniarum margine anguste revoluto. Flores dioici: Q terminales. Bracteze sub 4-jugze distiche subrecurvo- patulee, intime foliis fere triplo longiores liber, lobis anticis tenut- acuminulatis, lobulis ut et bracteolee profunde bifidee segmentis lobis eequilongis tenuissime acuminatis, e margine revoluto canaliculatis, integerrimis vel basin versus unidentatis. Perianthia magna emersa e rufo nigrescentia fusiformi-prismatica trigona compressa, facie antica convexa medio sulcata, angulis lateralibus devexis. Perianthium juvenile basi_ viride, apice ruberrimum, maturum tamen totum nigrescens. Calyptra pyriformis, dimidio infero subeylindrica 6 cellulas crassa, ibidem papillis paucis intus aucta (ad Kantie Trichomanis fere instar), apice demum bi-raro tri- valvis. Pedicellus perianthio subduplo longior. Capsula ad } semi- circumferentize usque fissa; valvulee facie interna papillis inwequi- longis consperse. Cum descriptione cel. Gottschei, 1. c. et preecipue cum dimensionibus datis bene congruit ; solum quoad foliola plante Lindigiane “ ovato- rotunda” paulo differat. 42. FRULLANIA FLEXICAULIS, Spruce. Hab. In Andibus Quitensibus loco non citato (JAMESON), in monte Mulmiél, alt. 3000™, supra frutices vetustos, ipse legi. F 1:1x1-0, 1°2x 1°15, lob :35—°4x ‘15, ¢c AA; f'™ 8x65, 6 x-4; br a L5-1°7, br’ 16X11; per 25x 115, #5 x 2-0mm, Rufo-nigricans badiave, apice virescens, cespitoso-pendula. Caules 3-4- Dt FRULLANIA. [ THYOPSIELLA pollicares penduli, flexuosi, inequaliter pinnati, pinnis brevibus, aliis pinnulatis, floribundi. Volia dissita v. subimbricata valde decurva—siccando convolutiva, late cordato-ovata rotundata, vel fere orbiculata, mutica, repandula, antice caulem late transeuntia ; lobulus cauli contiguus, folio 3plo brevior cylindrico-campanulatus, ore compresso rotundato-bilabiato ; cellule parvee pachydermes subpellucidee, paucee inferiores majores. Foliola paulo breviora, dissita, ovato-vel cuneato-oblonga ad } bifida, rima angusta, segmentis subacutis, subcarinata, alis recurvis, margine ipso subplano repando, basi decurrenti-amplexantia, sinuato-subhas- tata. Flores dioici: 9 terminales. Bracteze 4-jugze, intime foliis sat majores, liberee, lobo ovato rotundato obtusatove concavo integerrimo vel interne unidentato, lobulo angustiore inzequaliter bifido bracteolaeque subrhombee carinats seementis longe acuminatis profunde laciniatis, laciniis tenuibus flexuosis seepe iterum lacinulatis. Perianthia nigrescentia alte emersa, ovali-fusiformia vel subobovata, alte triquetra, ex abrupto subtruncato apice valde longirostria, carinis lateralibus valde devexis. Fr. paradoca, L. et L. (Syn. Hep. 463), quoad bractearum lobulum lacero-ciliatum nostre aflinis, differt lobo antico magno apice acute dentato, et fol. caulinorum lobulis crassis.—Ir. ulotricha, Tayl., Lond. Journ. 1846, p. 405 (Syn. Hep. 780) differt foliis longioribus, oblongo- oyatis et bractearum lobo acuto.—F’r. Deppit, Gottsche, e terris Mexicanis, fronde multo magig, dilatata, pinnis tripinnatis, gaudet ; lobulo multo altiore (=lobi 3, a ubi explanatus invenitur, lobo equialto), lobulis involucri solum serrato-dentatis. 43. FRULLANIA H&MATOCYSTA, Spruce. Hab. Pallatanga Andium Quitensium, alt. 1800™, ad arbores. eS 100 G, iC ae sy? aD ec Cespites depressi lati nigro-sanguinei. Caules 2—3-pollicares stratificati pinnati vel subbipinnati, ramis brevibus inequilongis. Folia late imbricata suboblique late cordato-ovata triangulari-acuta apiculatave, decurvo-concava ; lobulus duplo brevior, crasse cylin- dricus vel subclavatus, ore obliquo cauli subcontiguus, dein angulo sub 30° divergens ; cellulze mediocres equilateree, pariete incrassato, medi intus intense coloratee, ad auriculam anticam minores ecolor- ateque. Foliola contigua dimidio folio longiora orbiculata, basi subdecurrente caulem amplexantia, apice breviter emarginata, dentibus acutis con- niventibus, medio canaliculata, margine inferne valide recurvo. Flores ? A Fr. flexicauli, 8., subaffini, differt foliis acutis, lobulo majore et crassiore, et foliolis duplo fere latioribus. DIASTALOBA | FRULLANIA, 50 Suscenus 6.—DIASTALOBA, S&. Sectio (s. subgenus) Frullaniw, habitu proprio pusillo tenello, preecipueque foliis minus profunde fissis (unde lobulus haud ex ipsa folii basi sed ad folii altitudinis {-} oritur, cauleque seepissime divergit) distincta. Plantz pusillz rufescentes, raro viridulee, arcte repentes, sparse (in F’r. exilt procumbentes substratificatee) pinnate bipinnatzeve, aliis ramulis seepe microphyllis. Folia imbricata tenuia subplana vel caviuscula, ovata (raro semicordata) rotundata vel seepe apiculata integerrima, ab apice ad 3—? bi- (tri-) loba ; lobulus a caule dissitus pro more obliquus, brevi-cylindricus— raro” galeiformis, interlobulo triangulari sepe adjecto; cellule plerumque parve, pariete incrassato, raro paucee inferiores majores in ocellum aggregate. Foliola $ folium subequantia, subplana, seepe angusta, raro rotunda, ad dy. raro ad 3 bifida, segmentis acutis, integerrima. Flores plerumque monoici: @ terminales. Bracteze 2-5-jugee, com- plicatee, ad Scapanie instar distiche patule, apice solo decurvule, increscentes, intime foliis plus duplo longiores, paulo ineequilobee, lobis omnibus szepius acuminatis, lobulis idem ac bracteolee bifidee segmentis plerumque plus minus incisis raro integerrimis. Perianthia pro plantulis magna pyriformia, interdum obcordata, triquetra, rostellata, rarissime (e. carmis lateralibus ut videtur duplicatis) 5-carinata, in uniea sp. pluricarinata. Bractee ¢ 3-4-juge, vel ramulo proprio compresso-globoso tenentes, vel medio ramo foliis consecutive. Hab. In cortice, perseepe alias hepaticas, Frullanias precipue, in- festans. Distr. Species sub 25 cognovimus, in terris tropicis australibusque totis dispersas, unicam (fr. Carolinianam Sull.) in America boreali temperata, nullam in Europa. Ipse "perpaucas legi, alias in sylvis Amazonicis, submaritimis preecipue, alias in Andibus inferioribus, vix supra 1500™ alt. ascendentes. A. Flores monoict. 44, Fr, exilis—Rigidula plumeformi-pinnata. F. imbricata oblique ovata abrupte minute apiculata, lobulo 3-4plo breviore clavato-oblongo dissito cauli subparallelo; c. minute, paucz subbasales magne. Foliola duplo breviora orbiculata fere ad $ bifida. Br. 3-juge, intime lobulis bracteoleeque segmentis acuminatis, basi 1-2 laciniatis. Per. majuscula subpyriformia triquetra abrupte longi- rostria. 45. Fr. compsotera.—Caules debiles pinnati, aliis ramis microphyllis. F. imbricata ovato-rotunda, lobulo triplo breviore distante subobliquo clavato-oblongo, ¢. parvulis. Foliola duplo minora subrotunda angulata fere ad + bifida, segmentis acutis. Br. 5-jugee, intime lobulis subacuminatis basi subdentatis ; bracteola longe oblonga carinata ad 4 bifida, segmentis subacuminatis, integerrima. Per. subemersa pyriformia rotundata longirostria triquetra. 3! FRULLANIA. [ DIASTALOBA | Fr. obcordata.—Parvula tenera pellucida subpinnata. F. arcte imbricata late elliptica suborbiculatave, lobulo distante diagonali clavato papuloso. Folola parva subovata ultra } acute bifida. Br. intimee distiche patulze subineequilobee, lobis apiculatis interdum subserratis ; bracteola profunde bifida integerrima. Per. subemersa obcordata triquetra rostellata.—Brasilia. | 46. Fr. subtilissima.—Gracillima subbipinnata, ramis raro microphyllis. F. subimbricata ovata acuta, lobulo dissito obliquo longe oblongo pellucido-reticulato, ¢. parvis subbasalibus majoribus discoloribus. Foliola plus duplo breviora lanceolato-oblonga ad 4 acute bifida. Br. 3-jugee, intimee lobulis bracteolaque bifida incisis. Per. pro plantula maxirha pyriformia triquetra retusula brevirostria. B. Flores dioice. [ Fr. myosota.—Hook. f. et Tayl. Lond. J. Bot. 1844, 393. Crebre pinnata, pinnis plurimis microphyllis. F. subrotunda valde concava, lobulo clistante parvo brevi-clavato valde obliquo. Foliola cuneato-rotunda ad 4 bifida, segmentis acutis. Br. bijuge integerrime, lobis omnibus cuspidatis. Per. magna pyriformia alte 5-carinata.—Nova Zeelandia. | 47. Fr. duricaulis.—Caules rigidi opaci laxe pinnati. F. prelate orbiculata mutica, lobulo distante brevi-cylindrico obliquo. Foliola angusta lineari-oblonga ad 4 bifida. 44, FRULLANIA EXILIS, Tay]l. Lond. Journ. Bot. 1846, p. 405 ; ‘Syn. Hep.’ 778. Hab. Cirea urbem Pard, variis locis, insula Marajé, etc., nusquam a mari remota, in arboribus, preecipueque palmarum truncis. Guiana anglica (hb. Greville). F 6x°45, lob 15-2, ¢ yzio-dh; fi 38x °4, °25x°25; br 1°2°; per TS x< ga Pusilla rufo-fusea stratificata ; caules 13-pollicares procumbentes crebre pinnati, seepe plumeeformes, ramis breviusculis apice attenuatis, decurvo-subsecundis, siccando julaceis. Folia imbricata (caulina ad 3, ramea ad $ lat. usque) late oblique (vel subsemi-) ovata, basi subcordata, ex apice subobtuso decurvulo minute apiculata ; lobulus 3—4plo brevior a caule dissitus, clavato-oblongus, cauli parallelus v. apice divergens ; cellule: minute et minutissime, pariete valde incrassato, 10-12 inter folii basin et lobuli orificium ceteris multoties majores, centro pellucidie, ocellum sistentes. Foliola foliis subduplo breviora subimbricata orbiculata (ob marginem in- ferum recurvum ad speciem late cuneata), fere ad 4 acute bifida, laciniis divergentibus acuminulatis. Flores monoici: 9 terminales. Bractec sub 3-juge, intime foliis duplo majores subineequilobee, lobis subacuminatis, posticis bracteoleeque ad 4 bifidee segmentis acuminatis basi ipsa 1-2-laciniatis, ceeterum integerrimis. Perianthia pro plantula majuscula subemersa rufa subpyriformia, vel e basi obeconica oblonga, triquetra, abrupte Jongirostria, faciebus omnibus concavis. Calyptra duplo brevior pyriformis tenuiuscula, basin versus 2 cell., medio supero solum 1 cell. crassa, ab apice ad medium usque ineequaliter 4-valvis. DIASTALOBA | FRULLANIA. 57 Amenta ¢ rami apicem mediumve tenentia ; bracteze foliis consecutiva, sensim minores, 3-4-juge, equitantes subsequilobee. Obs. Folium a basi ad }-4 ejus longit., i. e. ad sacculi insertionem usque, plica perangusta (pro lobuli parte basali habenda) auctum. Cellule subpellucidze, utriculo seepe collapso lineari sinuato, medize Ay™™ long, axiales omnes elongate, ceeteree marginem versus multo minores (2>-z40™) subrhombe, ocelli basalis magnz magis pellucidee. 45. FRULLANIA COMPSOTERA, Spruce. Hab. Andes Quitenses, ad fl. Pastasa superiorem, alt. 1500™, in arbusculis, supra alias Frullanias repens. 7x5, lob “2; c 3; f* 35 x °35; br 15 x "75, br 1°25 x °6; per 1:65 x 9; caps “65, elateres *4™™, Pusilla, e viridi rufescens. Caules }-1-pollicares prostrati debiles pinnati, ramulis plus minus microphyllis. Folia imbricata patula decurvula oblique ovato-rotunda mutica, rarissime subacuta, repandula; lobulus a basi ad lobi alt. 4 usque ad plicam angustissimam—medio processum triangularem proferentum, vel non—redactus, dein liber lobo triplo brevior clavato - oblongus incurvus, cauli parallelus vel plerumque suboblique ascendens, subinde evolutus lanceolatus; cellule pleraeque parvulee eequilateree, pariete ad angulos incrassato. .Foliola subimbricata foliis duplo minora subrotunda ad $ fere acute bifida, segmentis acutis, margine angulato-repanda raro utrinque unidentata. Flores monoici: 9 terminales. Bractee 5-juge distiche patule, arcte imbricat, sensim increscentes, intimz foliis duplo longiores com- plicatze ad medium fere bilobee; lobus ovali-lanceolatus acuminulatus subintegerrimus ; lobulus paulo brevior duplo angustior oblique triangulari - lanceolatus subacuminatus basi sepe subdentatus ; bracteola hinc breviter connata, anguste oblonga complicato-carinata ad 4 bifida, segmentis subacuminatis, integerrima vel utrinque 1- dentata. Perianthia subemersa pyriformia apice rotundato longius rostellata triquetra, faciebus lateralibus canaliculatis. Capsula in pedicello perianthio duplo longiore majuscula globosa pallide ruta, valvulis ovali-lanceolatis recurvo - patulis, intus papulosis et ab apice ultra medium elateribus elongatis unispiris obsitis. Amenta gcrebra cauligena, folio caulino duplo breviora, compresso- globosa; bracteze 3-jugee arcte imbricate concave, lobis subsemicir- cularibus ad apicem fere usque connafis. Adsunt bracteole. Fr. gymnotis Mont., proxima, folia habet orbiculata, superiora apiculata; bractearum lobulos serratos. Fr. subtilissima Lindenb. foliis duplo minoribus ovatis interdum sub- acuminulatis ; foliolis multo angustioribus lanceolato-oblongis ; lobulis bractearum incisis serratisve, distat. Frullania myosota Tayl. hb.! (in ins. Auckland, supra Madothecam arctissime repens, ab Hook. f. lecta), nostra aflinis, magis robusta est, valde ramulosa, ramulis plurimis microphyllis, paucis normaliter foliosis apice floriferis (2). Folia pellucida subrotunda valde concava mutica, lobulo parvo brevi-clavato distante valde obliquo. Foliola cuneato- TRANS. BOT, SOC. EDIN., VOL, XY. H 5S FRULLANIA. [ DIASTALOBA rotunda ad 4 acute bifida, segmentis acutis. Flores dioici. Bractez bijuge foliis sat majores, lobo elongato obovato-ligulato, lobulo angustiore, omnibus lobis apice ineurvo cuspidatis; bracteola angusta profunde bifida, segmentis rectis subulatis acuminatis, hinc connata. Perianthia magna pyriformia, basi attenuata, compressula alte 5-carinata, facie antica lata depressa. Obs. The perianth seems to have become 5-angled (from 3-angled) by the duplication of the lateral keels, for all five keels belong to the convex. postical face ; while the broad, plane, or depressed antical face is entirely ecarinate. Fr. myosota is referred by Mitten, in Hooker’s Handbook of the New Zealand Flora, to Fr. ptychantha Mont. The latter is, however, described by himself, and by the authors of the ‘Syn. Hepat.’ to have obovato- cuneate leaves.and a 9-plicate perianth, and must therefore be distinct from the “ Fr. myosota” I had trom Taylor himself. Fr. pentapleura H. f. et T. (Handb. Fl. N. Z. 537) might seem, from the name, to be the same as our Fr, myosota, but is in reality far removed by the semi-orbicular leaf-lobules. 46. FRULLANIA SUBTILISSIMA, Lindenb. Syn. Hep. 443 ; Fr. atrata 6 subtilissima M. et. N. Ann. Se. 1840, p. 333. Hab. Ad fluvii Negro cataractas, in cortice ; etiam ad Caripi, prope Pard, supra Lejewneas repens (R. 8.) Guiana Gallica (LEPRIEUR). F °35x°'25, lob :15, ¢ Aas fi °15x 08; br “8-9 longa; br**. "75 x ‘45 5 per 115x°6; caps °3™™, Gracillima rufeseens, tenui strato arcte repens. Caules pollicares laxe pinnati et subbipinnati, ramis brevibus, raro superne microphyllis. Folia pellucida subimbricata patula decurvula oblique ovata abrupte sub- acuta vel brevissime acuminulata, basi antica dilatata caulem haud transeuntia ; lobulus ad } lobi altitudinis adstans obliquus saccatus elongato-oblongus pulchre reticulatus, processu_ triangulari inter lobulum et caulem plerumque interjecto ; cellule parvee, pariete incrassato intus sinuato, pellucidee, subbasales paulo majores longior- esque coloratee. Foliola plus duplo breviora, caule vix latiora, lanceolata vel rectangulari- oblonga, fere plana, ad 4 acute bifida, segmentis acutis. Flores monoici : 2 incaule ramisque terminales. Bracteee 3-jugee sensim increscentes, intimee foliis plus duplo longiores erecto-patulee compli- catee paulo ultra $ bilobie, lobis oblongis subacuminatis, lobulo paulo minore grosse inciso ; bracteola hine cum bractea connata cuneato- oblonga, ad 4 bifida, segmentis subacuminatis, margine incisa, Perianthia foliis plus triplo longiora rufa pyriformia retusula brevi- rostellata alte acute trigona, demum triloba. Capsula foliis fere equilonga globosa, profunde 4-fida, ad medium usque ab apice elateribus validis obsita. Andrcecia ramulo brevi plerumque constantia. Obs. Ir. subtilissima Syn. Hep. eadem species videretur, descripta est autem “ foliis cordato-ovatis,” “lobulis horizontaliter vel oblique a caule distantibus,” quum in nostra folia basi vix cordata, lobulique etiamsi obliqui nunquam horizontales. Quoad involucrum serratum ete. sat bene conveniunt. DIASTALOPA | FRULLANIA. 59 47, FRULLANIA DURICAULIS, Spruce. Hab. Caripi, prope Pard, in aliis hepaticis supra truncos repens. F +45 x°55, lob “15, ¢ Js 3 fit -2x-1™™, Pusilla purpureo-badia. Caules pollicares validi rigidi opaci (rubri) flexuosi laxe pinnati et subbipinnati, ramis brevibus, nullis micro- . phyllis. Folia dissita vel subimbricata caviuscula oblique suborbiculata, latiora quam longa, mutica, antice caulem transeuntia, vix semicordata, ad # biloba ; lobulus 3-plo brevior obliquus brevi-cylindricus curvulus, processu triangulari inter lobulum et caulem ; cellule fere minutule, inferiores paucee majores discoloresque. Foliola plus duplo breviora, caulo vix latiora, lineari-oblonga ad } bifida, ~ -segmentis erectis subacutis, basi recurva apice incurvantia. Flores haud visi, sine dubio dioici. . Fr. Martiana G. Syn. Hep. 448, nostree ob folia transverse orbiculata similis, differt lobnlis clavatis et foliolis ovatis. Il. JUBULA, Dumort. Jubula Dum. Syll. 36 (1823), § 1.. Jubulotypus, excl. § 2. Ascolobium. Frullania, Raddi; Nees et Syn. Hep. Plante speciose virescentes elatiuscule prostrate implexe et sub- stratificate, dichotome vel pinnatim ramosz. Cellule caulis 8 in diametro, c. corticales sub 32-seriate, facie quadrate vel rectangu- lares, internis vix diverse nisi breviores et opaciores. Folia majus- cula incuba bipartita ; /obus anticus sat latus planus, ad lineam diagonalem super caulem incurrentem insertus, pro more pulchre dentato-spinosus ciliatusve ; /obulus minutus saccatus, a caule spatio sub 5 cell. distans, replicatus patensve, basi externa spina tenui calearatus (in var. inermis), haud raro evolutus lanceolatus acu- minatus; cellule parvule mediocresve subequilatere, ambitu opace, pariete autem tenni. Foldwm axillare (ad rami originem) ex p. caule, ex p. ramo insidens ; lobulus 0 vel (ubi revera adsit) a lobo distans, ramo solo accretus. Foliola duplo breviora, plana, subrotunda, bifida, paucispina integerrimave. Fores monoici: ? innovationibus duabus oppesitis—raro una sola—suffulti. Bractew unijuge com- plicatee ineequilobe, utraque innovationi subflorali adnata, a bracteola bipartita carinata liber. Pistillidia tenuia, perseepe solitaria binave, rarissime 3-4-na. Perianthia trigono-obpyramidata, vix rostellata, ubique inermia. Calyptra napeformis, dimidio infero late tubularis 2 vel 3 cell. crassa, supero abrupte subglobosa tenuis. Pedicellus 60 J UBULA. perianthio subduplo longior, sat crassus, tener, cellulis oppositis bistratis 20-seriatis—axialibus majoribus 4—seriatis (interstitiis crucis figuram ostendentibus), corticalibus parvulis 16-seriatis oblongo- tabulatis conflatus ; apice autem in capsule basin insigniter dilatatus, carnosus pallidus, pedicelli apophysin (forma sphere segmentum) sistens, vertice ipso (7.¢., facie supera) cellulis quadratis pluriseriatis, al lineas diagonales cruciatas ordinatis constans. Capsula globosa, a basi ad + (vel ad 4 fere) semicircumferentiz—sc. ad apophysis apicem usque—integra, deinde quadrivalvis ; valvule rufo-badiz valid recurve, tota fere facie interna (subrugosa) elateriferee ; cellule valvularum bistrate, exteriores tabulate pachydermes, incrassationes validas ad latera monstrantes; c¢. strati interioris multo minores, compress, toto ambitu flavido-incrassate, cavitate pellucida, unde valvule poris magnis perforate videantur. Elateres 50-56 cujusque valvul, prelongi tenuiusculi, basi angusta adfixi, apice lato truncato obtuse quadrato, helice sat valido arctius contorto, folliculo tenuissimo cito dissoluto. Spore elateribus duplo latiores, minute tuberculose. Andrecia ramulis spiceformibus constantia; bractese diandre. Habitatio et Distributio. Species unica, sat variabilis, hucusque cognita in saxis humectatis umbrosis crescit. In Hibernia austro- occidentali clarissima Miss Hurcuins eam primum reperit ; nuperius in Britanniz variis locis, juxta oras occidentales, inventa est, necnon in America boreali, subtropica precipue (Virginia, Carolina, Mexico). Per terras tropicas totas dispersa videretur, rara tamen. Ipse prope Killarney Hibernie etiam ad pedem montis Tunguragua Andium Quitensium legi, » This fine genus is certainly distinct from both Frullania and Lejeunea, and is in some respects intermediate between the two genera. It agrees with Lejewnea in the bracts of the female flower being adnate to sub- floral ramuli (or innovations),—a character not found in any Frullania ; also in the incurrent (not transverse) leaves, whose spinoso-dentate margin quite recals the subgenus Odonto-Lejeunea, and has no parallel in frullania ; nor are there distinct trigones at the cellular angles, as in every Frullania. The pedicel agrees exactly with that of Lejewnea in consisting of two concentric strata of conterminous (not alternate) cells, arranged so as to form a cross on the transverse section of the pedicel (4 axial, and 16 stnaller peripheral series of cells); only the apex of the pedicel is more dilated than in any Lejeunea, shewing a quadrate, plane, or slightly concave surface, traversed by a great number of diagonal lines (the limits of the quadrate cells) crossing at right angles. On the longest diagonals, viz., those joining the basal angles of opposite valves, I have counted in a capsule of inordinate size as many as 32 cells, and they are never fewer than 22; besides a few minute thickened cells set at each angle, like a gusset, with the effect of preventing any rupture of the apophysis below J UBULA. 61 the valves. But in Frullania the cylindrical portion of the pedicel con- sists of four concentric strata of alternating cells (7.e., there are 8 cells on the diameter of a section), and no cruciate arrangement is traceable. Jubula agrees with Frullania in the axillary ramification, the saccate lobule, and the mono-tetragynous @ flowers. It has one character not found in any species of either Frullania or Lejewnea, viz., the presence of an antical elobulate leaf at the insertion of every branch, seated partly on the stem, partly on the branch, corresponding to the similarly posited leaf in Bazzania, Blepharostoma, &c. 1, JuBsuLA HurcHinst& (Hook). Jungermania Hutchinsie, Hook. Brit. Jung. t. 1; Engl. Bot. t. 2480 ; Jubula Hutchinsie Dum. Comm. 212. Hab. per insulas Britannicas, semper fere ad super humectatas. Kzl- larney, variis locis (DS* Hurcuins, Tayior et ipse, &c.) Ballina- hasig prope Cork (W1Lson); Dolgelly, Wales (RALES, WILSON, &c.) ; in spelunca ad oras Dunoon, Argyle (GourLin et Lyon). Ejusdem speciei varietates proveniunt ex America boreali (Mewico, &c.), necnon ex Andibus equatorialibus et insulis Malayanis. F 16x11, 1:1x0°8; lob -25x°1; ¢ Ay —-ss; fl “8x °8, 8x °7, 65x "755 °6x°6; br lob 1°8x 1-0; br'2 16; per 19x95; bro 55™™, Majuscula, leete viridis, prostrata, tegeticulas latas sistens, raro substrati- ficata. Caules 1—3-pollicares, laxe et subflabellatim ramosi, ex parte pinnati, ex parte dichotomi, subgeniculati, ramis 9 sub flore inno- vando furcatis, raro innovatione unilaterali auctis. Folia subimbricata subplana, late oblique ovata, apiculato-acuta cuspi- datave, basi excepta, argute spinoso-dentata, ad marginem anticum precipue, spinis 2-12, pro more brevibus triangulari-acuminatis, interdum lengioribus et ciliiformibus, ad folia ramea paucis raro nullis, basi antica dilatata non autem cordata, caulem haud perfecte obtegentia, postice ad lobuli insertionem sinuata; lobulus a caule spatio 4-5 cellularum dissitus, eidem subparallelus (processulo brevi rarissime interposito) saccatus, brevi-digitiformis, lobo 5-6 plo brevior, basi externa (ore) cilium sub 5 cellulas longum ad calcaris instar deferens, haud raro evolutus subulatus lanceolatusve acuminatus ; cellule parvulee, ad angulos haud (vel lenissime) incrassatee, sub- pellucide, inferiores subelongatze, lobulum versus latiores discolor- esque. Folia inferiora minus, superiora (florem 2 versus) magis dentata. Folia axillaria (se. que ramos subtendunt) subantica, ceteris latiora, magis symmetrica, late subcordato-ovata acuminu- lata, vel integerrima vel subspinosa, lobulo nullo, rarius parvo-denti- formi evoluto. Ad floris 9 dichotomiam nullum folium axillare adest. Foliola subrotunda subplana, basi acute decurrentia, apice ad 3 usque bifida, segmentis cuspidato-acuminatis, conniventibus, margine spinis paucis Jongis ciliata vel inermia. Flores monoici: 2 in ramo terminales, ex innovationibus oppositis sim- plicibus, bracteis basi adnatis, dichotomiales. Bracteze intime foliis sublongiores, profunde bilobe, complicatze, lobis oblique lanceolatis acuminatis spinosis laciniatisve, postico duplo (vel perpaulo) minore ; bracteola fere bipartita carinata, lobis tenuiacuminatis spinosis, Folia 62 J UBULA. bracteis proxima lisdem parum diversa, lobulo majusculo evoluto, &c., conformia, ad quartum par usque; folia tamen quinti paris infra florem lobulo saceato plerumque gaudent. Perianthia foliis duplo longiora, pyriformia, vel potius anguste obpyra- midata, alte tricarinata, faciebus depressis vel antica medio obscure carinulata, apice rotundato-truncato obscure rostellata, demum trifida, ubique leevissima. Amenta ¢ spiculis cauligenis folium collaterale plus minus excedentibus constantia ; bracteze sub 6—jugee, foliis plus duplo breviores, laxiuscule equitantes, late emarginato- pilobz, inferne turgide, lobis subacu- minatis conniventibus, inferiore subminore, integerrimis raro denticu- latis; bracteole parvee oblongie ad $ bifida ; : antheridia bina, JuBULA HutcHinsi& (Hook.) var. PINNATA, S. Hab. in sylva Canelos, ad pedem montis Tunguragua, in saxis humectatis, socio Mnvo rostrato. F 1:2x°85, lob 1-15; ¢ Ao—-as; f' caulina 6x “75, ramea 5 x °455 per 2-4 x 125mm, A planta hibernica typica differt caule stricto, laxe pinnato, pinnis brevibus, fertilibus solis furcatis, colore lurido, &c. Folia basi distinete semicordata superne 6—8-spinosa-ciliatave, spinis sc. pro more 5 ad mar- ginem anticum, | ad posticum, 1 ad apicem; lobulo minuto (duplo minore quam in typo) obovato, ore ecalcarato. F oliola eaulina latiora quam longa. Habitus, e caulibus clongatis strictioribus, certe diversus ; caracteres tamen a ‘typicis parum discrepant. Lobulus minutus ecalcaratus etiam in forma Javaniea, etc., inventus est. Forsan eadem erit ac Fr. ciliata Lg. et Gottsche, Syn. "Hep. 775 (pro varietate Hr, Hutchinsie quoque habenda ?), in Andibus Mere a Moritz lecta; quum tamen cum descrip- tione data minus bene convenit, hoc non ausim asseverare. Var. SULLIVANTH, Spruce. Frullania Hutchinsie Sull. Muse. Allegh. 271. Hab. ad rupes humidas in Carolina et Virginia (SULLIVANT!) Humilis, lurida, subdichotome ramosa. Folia nisi pro apiculo terminali (neque constanter presente) inermia :—raro advenit ad ramorum apicem folium unum alterumve obsolete dentatum; lobulus pro ratione major, inflatus, ecalcaratus. Foliola integerrima.—Vars. Javanica et Mexicana “Syn. Hep., inter hane formam et typum exacte fere medic sunt, foliis nune integerrimis nune paucidentatis ludentibus, lobulo utplurimum ecalcarato. Quare pro speciei valde variabilis varietatibus jure habendas censeo. After repeated examination of numerous forms of J. Hutchinsie, J am compelled to conclude that they constitute but a single very variable species. The most striking varieties are those above described. Its dis- tribution confronts us with a problem not easy of solution. In various localities along the western coasts of England, Wales, Scotland and Ireland it grows in some abundance, and fruits freely. Elsewhere in Europe it has not yet been met with ; but what we regard varieties of the same species exist in the warmer parts of North America, and in regions adjacent to the equator all round the globe. The question then arises LEJEUNEA, 63 whether the British Isles may be its original home, or rather some spot in the torrid zone:—a question into which I have not here space to enter, and J must relegate to a separate memoir the results arrived at by col- lating the parallel instances of a great many other species of plants. III. LEJEUNEA, Libert. Ann. gén. se. phys. (1820); Dumort. Comm. bot. p. 111; G. L. et N. Syn. Hep. p. 308, ex p.—Bryopteris Nees.—Thysananthus Lindenb.—Ptychanthus Nees.—Phragmicoma Dum.—Omphalan- thus Lindenb. et N.—Frullanic sp. Nees. et Mont.—Jungermaniv sp. auctorum. Plante plereeque tenere, pusilla, alize preminut, pauce robusta; pro more tenui strato repentes, ali species autem stratificatee, alia cxspitose et assurgentes penduleve, colore in plurimis pallido, albescente vel flavo-viridulo, interdum autem badio luridove, rarius letevirente, vix unquam rubescente. Cawles teretes, tenuiculi, rarius sat validi, pinnatim ramosi, raro plumeformes, aliquando ex parte (raro ubique) dichotomi, rami omnes infra-axillares, sc. foliorum basi externa contigui. olia alterna complicato-biloba, ad plice basin inferius decurrentia, deinde sursum incurrentia; lobi sat lati vel angusti, anticus major, incubus, ad lineam diagonalem vel fere tectam—rarissime subtransversalem—super caulem incurrens, posti- cus (/.e., lobulus) simili modo insertus, incurvus et ventricosus, raro planus, margine valde vario, integerrimo, plus minus serrulato denticulatove, interdum dentato-spinoso-ciliatove, rarissime laciniato, superficie levissima, vel e cellulis convexis papulosa, interdum muti- culata, raro echinata. Cellule in plerisque subeequilaterze, mediocres parvuleve, aliquando minute, pro m. leptodermes, trigonis angu- laribus raro conspicuis; in paucis speciebus ¢c. majores, ceteris parvis interposite, in ocellum subbasalem, raro in lineam mediam aggregate, in paucissimis per totam paginem equaliter sparse. Foliola in omnibus fere preesentia, in. perpaucis nulla, in divisione priore (Holostipe nob.) integra, in posteriore (Schizostipee nob.) bitida, magnitudine formaque in diversis speciebus valde varia, radicellas pallidas fastigiatas, raro stellatas, a tergo proferentia vel ealva. lores dioici vel monoici (rarissime paroici), Andrecia plerumque ramulis amentiformibus pallidis constantia, haud raro tamen in caule ramove posita, foliis normalibus consecutiva ; bractee 64. LEJEUNEA, subequilobe diandre—rarissimo casu triandre—in paucis autem (Dicranolejeuneis, Drepanolejeuneis et Cololejeuneis) monandre. Rami feminei raro simplices et vel brevissimi vel in aliis speciebus elongati; seepius ramulo infraflorali (innovatione)—vel ramulis duobus oppositis—simplicibus vel iteratim innovando-floriferis, aucti. Bractee foliis caulinis plus minus diverse, planilobulatze, bracteola subequimagna interjecta (in Cololejewnea deficiente) ; bractea intima (saltem) —vel utraque in floribus dichotomialibus—innovationi (ubi adest) adnata, ab axi florifera vix non omnino libera; ubi autem ramus 2 simplex est, bractew plurijugz adveniunt. Perianthium a bracteis liberum, leptoderme, rarissime perfecte teres et subcylindricum, vel compresso-planum, plerumque pyriforme a fronte subcompressum et in aliis trigonum, in aliis 4-5-gonum, in paucis pluricarinatum, angulis carinisve levibus vel vario modo armatis, apice interdum in cornua auriculasve productis, vertice perianthil ipsius pro m. rostello turbulari aucto. Piéstillidiwm constanter solitarium, stylo tenui longe persistente. Calyptra subduplo brevior obovata tenuis, in speciebus robustioribus autem basi constricta subcarnosa, demum apice subregulariter 2—3-valvis, Pedieellus brevis pallidus, ad maturitatem perianthio solum 2—3-plo longior, teres, cellulis stratis duobus concentricis (4 cell. in diametro, 12 v. 16 in longitudine) constans, in sectione transversa cruciformis; cellule leptodermes, axiales 4-seriate majuscule, periphericee minores 12-v, 16-seriate, omnes in stratis ordinibusve horizontalibus (16 v. 20 cujusque ordinis) sdificate, ita ut pedicellus in sicco plerumque nodoso- articulatus, ad nodos geniculatus vel non, evenit; superne autem in capsule basin abrupte dilatatus est, apice ipso (subquadrato) cellulis laxis cruciatis (ad diagonales intervalvulares 12-v. 16-nis) constans. Capsula globosa, eadem fere structura ac. Frullane, pallida tamen, utplurimum tenera, valvulis in dehiscentia recurvis, demum autem (capsula evacuata) tam siccis quam humectatis per- spe in floris Zilii candidi formam conniventibus ; strato interiore albido flavidulove, superficie inequali et ad speciem spongioso, vix ad valyularum basin usque protracto. Elateres a capsule apice ad vel paulo ultra dimidium inserti, persistentes, pro m. pallidi, tenui- cylindrici, apice dilatato quadrato-rotundo ; helice tenui plana, sim- plice, raro bipartita, arctiuscule, vel interdum valde indistincte torta, 20-200 cujusque capsule, Spore magna (diam, y';-9'5"") @ viridi- LEJEUNEA. 65 badiz, globose v. oblong, pressione mutua polyhedre, tuber- culose.* The genus Lejewnea, reconstituted as above, to contain all the strictly monogynous Jubulew, is well distinguished ‘from Frullania by (1) the branches being contiguous to the outer base of the leaves, 7.¢., infra- axillary ; (2) the usually rhomboidal or ovate lobule being either plane or ventricose, but never (as in Frullania) either galeate or “inversely saccate —shaped like a bell or a glove finger—except in the very rare case of the British L. calyptrifolia and 3 or 4 allied tropical species, where the lobule (larger than the lobe !) is lengthened out into the shape of-a hollow horn or club ; (3) the monogynous ? flowers; (4) the innovations, where present, as they are in the great majority of the species, being adnate to the 9 bracts ; (5) the pedicel cruciate on the section, only 4 cells (not 8) across, quasi-articulate when dry and mostly geniculate at the joints. There are other differences of minor importance. Its diagnosis from Jubula I have already indicated under that genus. It is only in the robuster species that the stem of Lejewnea is com- posed of many layers of nearly homogeneous cells, as in Frullania. In nearly all the more delicate species the cortical layer is of wider and more pellucid cells (oval on the section) than the axial layers. Thus, in L. lunulata (Web.) the stem has a distinct cortical layer of about 10 series of large pellucid cells, whereof those of the antical and postical faces are broadest. The inner, or axial cells are thrice as slender, hexagonal on the section, and in 3 concentric layers, so that the whole stem is 8 cells across. In “. leta, L. et L., the stem is only 6 cells across, the large cortical cells 7- or 8-seriate, and the thrice nar- rower interior cells about 30-seriate. These are typical cases. In the very minute species the axial cells are fewer. As the leaves are in all cases an extension of the outermost layer of the stem, or branch, where the cortical cells are larger than the inner, the texture of the leaf also is comparatively lax. While every branch is infrafoliar at its origin, neither the suprajacent leaf nor its collateral underleaf is at all modified by the branch, which may correctly be said to subtend the leaf, instead of the leaf subtending the branch, as in Frullania, Porella, Lepidozxia, and other pinnately-branched genera, where the axillary leaf is distinctly modified. The lowest point of the complicate leaf is the base of the fold. In two of the more conspicuous subgenera, Archilejewnea and Odontolejeunea, each leaf is inserted on the stem on two lines meeting below at an angle, re- sembling a narrow letter V, and diverging but slightly from parallelism to the axis of the stem—the lobule on the lower line, the lobe on the upper, and (although usually much larger) not ascending higher on the stem than the lobule, but at the antical base abruptly dilated and semi- cordate. This indeed is the typical mode of leaf-insertion throughout the genus, with such differences as are induced by the lobule being very much smaller than the lobe, or becoming obsolete, and sometimes by the nearly transversal insertion of the lobe on the stem. The latter character i is, however, very rare, and is never so marked as obtains throughout the genus Frullania, if we except the small subgenus Cololejeunea, where the * De habitatione et distributione Lejeunearum videas post subgenerum descriptiones. TRANS. BOT, SOC, EDIN. VOL. XV, I 66 LEJEUNEA. leaf is inserted on an exceedingly narrow base, the fold is often nearly parallel to the stem, or is not unfrequently flattened out, and the lobule yroper is represented by a marginal tooth some way above the base of the bat or is quite obsolete. The leaves are infinitely more varied in outline than those of Frullania, being in some species broader than long, in others narrow and almost’ subulate ; and although quite entire in more than half the number, yet Jeaves toothed in various ways—sometimes even ciliate or spinose—are frequent ; while in Drepanolejeunea palmifolia, Mart., they are so deeply Jaciniate as to be almost pinnatifid. The smooth surface, prevalent in most Lejeune, becomes scabrous in certain subgenera, and in a few is even echinate or setulose, e.g., in the Cololejewnea calcarea of Europe and its Javanese ally CL venusta, Lac.; also in Trachylejeunea acanthina, Spruce, from the Andes, and 7’r. papillata, Mitt., from New Zealand. It is in the subgenus Odontolejeunea nob., with its large spinoso-dentate leaves, recalling those of a Scapania, that we find the nearest allies of Jubula. Some species, indeed, have leaves so like those of J. Hutchinsie that were it not for the large and nearly flat lobule—as contrasted with the small saceate lobule of Jubula—they might on a merely cursory view be referred to that genus. Other features common to both have been already pointed out. Modifications of the lobule in Lejewnea, although useful for distinguish- ing species, are rarely available as subgeneric or sectional distinctions— for the organ itself is liable to become obsolete in many species, and in all is variable in size—except in the case of the horn-like lobule of L. calyp- trifolia and its allies, and in the subgenus Ceratolejewnea, where the lobules of the two lowest leaves on a branch—rarely of any upper leaves— are swollen out into a large kidney-shaped bag, involving the diminished lobe, and perforated in the centre of the depressed upper face. This curious structure is found to have originated in the lobule having been chosen as the nidus of certain minute insects, whose eggs or larve are occasionally found within the sac; but as it is limited to certain species of the group, where it is a constant feature, while from others it is as con- stantly absent, and in a few it exists in only a limited degree ; as more- over, I have occasionally seen these abnormal sacs in all stages without any occupant, and have noted an initial enlargement of the lobule while both leaf and branch were still so young as to be quite rudimentary ; I cannot doubt that the “utriculi” (as they have been called) have in many cases become inherited, and are as necessary to be taken into account in describing a species as any other part of the plant. This is a parallel case to that of the ant-inhabited sacs of T'ococa and other Melastomacee.* In a few species of Lejewnca the lobule is itself bilobed, but the segment next the stem is very rarely styliform, after the manner of Frullania. The texture of the leaves is thinner and tenderer than in Frullania, and corresponds more to that of Jubula. The cells are mostly subeequi- lateral hexagons (in reality short hexagonal prisms) and of medium size, or rather small ; scarcely ever to be called large, but not unfrequently minute. The leaves of certain species are, however, ocellate near the hase by the interposition of a group of larger cells ; very rarely are similar * IT may have to return to this subject when I come to treat of the probable origin and use of the inflated or saccate leaf-lobes which occur normally in Lejeunea, Frullania, and a few other genera of hepatice, LEJEUNEA. 67 large cells arranged in a beaded line, like the “false nerve” of Frullania Tamarisci ; or, in the subgenus Stictolejewnea, solitary, and scattered over the leaf at equal intervals, as in the dotted leaves of a Hypericum. Tri- gones, so constantly present at the angles of the cells in Frullania, are comparatively rare in Lejeunea. The cells of the lobule are much smaller than those of the lobe immediately overlying them, so that one cell of the latter will sometimes cover 3 to 5 cells of the former. The underleaves are either entire (Holostipe) or bifid (Schizostipw)—a most important difference, dividing the genus into two primary, and for the most part strictly definite groups, each of which includes many natural subgenera. The Holostipe belong almost exclusively to the tropics and southern hemisphere, only a single species (L. Mackazz) reaching our own shores, and two or three others the southern states of N. America. Although far less numerous in species than the Schizostipe, they are divi- sible into several well-marked groups. The underleaves show several other modifications, the principal of which are constant in each subgenus. A small and very natural subgenus, Cololejewnea nobis, has the under- leaves altogether absent, even from the involucres; but tufts of radicles are (or may be) produced at the base of every leaf. A still more remark- able group, consisting of two small subgenera (Diplasiolejeunea and Coluro- lejeunea) has duplicate underleaves, one to each side-leaf. I know of no parallel case in any other genus of hepaticee. Radicles are often copiously developed on the underleaves of all prostrate Lejewnea, especially of those that inhabit living leaves of trees. In Odontolejewnea they spread out in the form of a closely-rayed star, but in most other subgenera they are fascicled, or brush-shaped, and in the robuster species, with assurgent stems, are rarely present except on the creeping caudex. The inflorescence is about equally divided between monoicous and dioicous. It is paroicous in only a very few, chiefly of the robuster, Species; autoicous almost throughout some subgenera that are mainly foliicolous ; dioicous in most species of certain ramicolous subgenera of cespitose habit, and in a few species of several others. The andrcecia in a few subgenera exist solely in the form of minute whitish catkins ; in others they are terminal or medial on the branch or stem, the bracts being continuous with the normal leaves and scarcely differing from them in size, but nearly equilobed, and rather cymbiform than complicate ; in many subgenera, however, both forms co-exist, sometimes on the same plant. The ¢ bracts are diandrous in the great majority of species, the interpolation of a triandrous bract being exceedingly rare ; a few subgenera, however, are constantly monandrous, as already indicated in the generic character, and in one subgenus (Harpalejeunea) the antheridia are either solitary or twin in nearly every species. The antheridia are globose, and the stipes slender; where there are two together, one is larger than the other and overarches it on a longer incurved stalk. The 9 flowers are always terminal on a branch, or (very rarely) on the mainstem. The flowering branch, whether long or short, may be either per- fectly simple, which is the case in comparatively only a few species, or ¢nno- vant, 7.e., continued by an innovation originating immediately beneath the perianth, and in many cases itself again and again innovated and floriferous at each successive apex. The singular feature in Lejewnea is that the iner- most bract is always attached (adnate) to the innovation, and is quite free from the floriferous axis except at the antical basal angle. This kind of 68 LEJEUNEA. inflorescence has usually been considered lateral, in the “Synopsis Hepati- carum” and elsewhere. In reality it is a sort of uniparous, or mono- tropous cyme ; for a very little observation suffices to convince us that the flowering branch terminates with the apical flower, and that its apparent continuation is a lateral branchlet, often taking nearly the same direction. In some cases the innovation (as it truly deserves to be called) diverges considerably, and then its true origin is obvious. Not unfrequently there are two innovations, one adnate to each lateral bract, and thus a dichotomous inflorescence is generated. A simple ? branch is rarely found in the same subgenus as an innovant one, but there are cases where the two types of structure must necessarily stand side by side; where two species agree so nearly in every other respect that they cannot possibly be placed in different subgenera. Such cases exist in the groups I have called Prionolejeunea, Trachylejeunea, and Leptolejeunea. Where innovations are present, the true bracts are mostly reduced to a single pair ; but when absent, the bracts may be considered plurijugous, the lower ones passing insensibly into normal leaves, if the 2 branch be long enough to bear any such. In all cases the bracts are leaves, modified in much the same way as in Frullania, except that they were never united into a cup-like involucre. They are indeed rarely exactly oppo- site, so that although one of the pair may be connate with the intervening bracteole, the other will remain free from it ; and it is only in Drepano- lejeunea and Leptolejeunea that I have seen both bracts commonly so united. The usually pyriform and abruptly rostellate perianth goes through many phases of form, for a full description of which I must refer to the descriptions of the subgenera, some of whose most important characters are drawn from them. Ina few species it is as perfectly flattened as that of Radula ; in a good many others it is much compressed, but with a more or less salient postical keel, or with two or more keels ; in others, we find it keeled also in front, and almost regularly pentagonal; in a few others pluricarinate, and in a very few, perfectly terete and ecari- nate. The keels may be either a simple fold, acute or obtuse, or they (especially the lateral ones) may have a salient wing, which is often toothed, or spinose, or ciliate; and in a good many species they are dilated at the apex into an auricle or an ascending horn. In some species the perianth goes on growing after fruiting, especially at the base (so as to become spuriously stipitate), and assumes a purplish tinge, in which the calyptra participates. The pistillidium is uniformly solitary—a character not known in any other genus of foliose hepaticee, and the slender style is persistent. The calyptra is above half the length of the perianth, and nearly as — wide, obovate or pyriform, thin in texture throughout, or incrassated only at the very shortly tubular base. In dehiscence it is sometimes bivalvular at the apex, and often trivalvular, with one valve narrower than the other two. The pedicel, when full grown, is very little exserted, being only twice or thrice as long as the perianth. It is cylindrical, and is built up of cells in regular horizontal tiers. A transverse section shows 4 large axial cells, each the quadrant of a circle, so that their adjacent walls take the form of a cross; and 12 (or 16) smaller peripheral cells, 3 (or 4) ex- terior to each axial cell. And now we have to note a curious correlation of structure, not easily to be explained. In the Holostipe, or entire- LEJEUNEA. 69 stipuled Lejewnee, the pedicel is 16 cells in length, 7.¢., it consists of 16 superposed tiers of cells; each tier contains 20 cells (4 inner, 16 outer); and the apophysis (the dilated apex of the pedicel) has on its cruciform upper surface 16 pairs of square-headed cells on each diagonal. But in the Schizostipe the pedicel is but 12 cells long; each tier has only 16 cells, and the dilated apex is only 12 cells across. It is true that the Holostipe are, as a rule, more robust than the Schizostipe, and both stems and all appendages consist of more cells ; yet there are a few robust species of the latter which still preserve the same proportions in the pedicel. The numbers given above are the normal ones, and (as in the struc- ture of every other organ) there will be exceptions; but the following are all I have hitherto noted.—In L. robusta, Mitt., one of the largest species of the genus, in the centre of the 4 series of large cruciate cells a row of very slender cells is interposed, thus making the pedicel 5 cells (instead of 4) across, although the peripheral cells are still the normal number, 16. In L. inflewa, Hpe., one of the Schizostipw, stead of the usual 12 rows of peripheral cells, I have once found 13; the odd row of cells interposed between two groups of three rows each. In some of the minuter species one can make out only 10 or 11 tiers of cells in the length ; and in the Holostipw the tiers sometimes fall one or two short of 16; but these aberrations are rare. In the dilated head of the pedicel the number of cells is more apt to vary than in the cylindrical portion; and the cells filling the quadrants between the diagonals are by no means so distinct, or so clearly attributable to the pedicel, as in Jubula. The inner base of the capsule is indeed often partially torn up, when the elaters are released from it, and they in their turn sometimes leave their annulated heads sticking to it. The cells composing the pedicel are all formed before the capsule bursts through the calyptra, after which there is no further addition to their number, and the pedicel attains its full length by the elongation of the cells, so that, from being at first broader than long, they speedily become thrice as long as broad. In this process the end-walls of each tier of cells undergo no change, but the vertical walls are much attenuated and in drying collapse, leaving a nodose articulation, and in the more delicate species a flexure or geniculation, at the top of every tier. In several of the robuster species the cells of the pedicel offer more resistance to lateral shrinkage, and in the dried state the pedicel remains nearly or quite smooth. The capsule is uniformly globose, much paler and tenderer than that of Frullania, and in the smaller species often white when empty. Respecting its structure I have not much to add to what I have already stated in the description of the tribe and genus. It is cloven at maturity into 4 oval-lanceolate valves, down to about 3 of the semi-circumference, rarely to as much as #. The valves are strongly recurved at the moment of dehiscence, and retain that position in a few of the more robust species ; but in the great majority, when the spores are ejected, the valves close again and slightly overlap each other, so as to resemble the petals of a white lily. The outer membrane of the valves consists of large thickish cells, more or less rhombic in general outline, though sometimes 5- or 6-angled, and strongly sinuate within from the nodosely-thickened walls ; except the marginal cells, which are oblongo-quadrate and only half the size of the inner. The endothecium is either whitish or slightly tinged with yellow or brown. It consists of smaller, thinner, more elongate 70 LEJEUNEA. cells, with irregularly thickened walls, in a single stratum, or partly— especially towards the middle of the valves—in two or three strata; and it does not reach down quite to the base of the valves. In all cases the surface is unequally papillose, and as it were, spongy.* The elaters are almost exactly like those of Frullania in form and position, but they vary greatly in number, even in the same subgenus, although apparently constant in each species. In Bryopteris filicna 50 have been counted on a single valve, in Br. diffusa only 30; and some of the minuter Lejewneew have only 6 or 7—some even only 5—on a valve. The included fibre is simple— very rarely bipartite—thin, broad, and rather closely twisted; in a few species, however, of which our L, calearea is one, the most powerful instruments fail to show any twisting, but only an undulation, The Spores are large, globose (;™™ in diameter) or oblongo-globose (34; x 35 or x ay™) , polyhedral by mutual pressure, but losing their angles “when steeped long enough ; the sporoderm tubercu- lose or warty; the nucleus greenish in the fresh state, but turning yellow- brown. Many dioicous and some monoicous species are, when sterile, repro- duced by gemme or “ propagula,” which are round or oval disks (quite like the first growth from the spore of Anthoceros t), springing from one or more mar ginal cells of the leaves, and increasing in size mainly by the bisection of their peripheral cells until they become 6 or more cells broad, when they develop a minute branchlet with a pair of rudimentary leaves from their margin, and drop off, to begin a separate existence. Adventi- tious ramuli are rarer, but are produced occasionally, even in the minutest species, ¢.g., in those of the subgenus Drepanolejeunea, where they spring from the surface of the leaves, or from any part of the branches. They bear very minute leaves, often reduced to the basal sac. The subdivision of this vast genus, whether into so-called genera or into sections, has not hitherto been attempted on the basis of a thorough study and comparison of all the species. The few “genera” separated from it by the authors of the ‘Synopsis’ are like morsels chipped off a block of marble, and reduced to something like symmetry, but leaving the remainder a somewhat rude conglomerate, although it really includes many other well-marked groups—some of them of greater value than those already struck off—and admits of being divided throughout into natural subgenera (or genera, for those who prefer to so re gard | them). I will briefly review the genera carved out of Lejewnea by the authors of the ‘Synopsis,’ premising that all have entire underleaves except the last (Omphalanthus), which comprises both holostipous and_ schizostipous species. Their first genus, Bryopteris—previously proposed by Nees (Hep. Eur. ITI.) asa subgenus of Frullania—is a natural group enough, distinguished by the robust closely-pinnate stems (with subopposite branches) springing from a creeping caudex ; the 9 flowers on very short and perfectly simple ramuli ; the trigono-fusiform perianths ; the very numerous elaters, and other characters. An aberrant member is Br. diffusa, which is dicho- tomous throughout, except that the branches are still pinnulate with the ? flowers as in the type-species, Br. filicina (Hook.), to which the leaves, * Of Archilejeunca nine n. sp. I have noted: Capsula facie interna crebre papillosa, papillis plurimis brevibus, aliis autem in pilum fere elongatis. + Cf. Hofmeister, on the Higher Cryptogamia, Tab. i. LEJEUNEA. 71 perianths, &c., also closely correspond. The Oriental Br. fruticosa, Lg. et G., however, I have been obliged to separate as a distinct subgenus, for the 2 branches are innovant, sometimes forked, and the perianths obcordato-triquetrous, with cristate keels and one or two ridges added on to front and back. A Bryopteris of Nees (Br. spathulistipa), anda few new species, consti- tute the genus Thysananthus, Ldng. in ‘Syn. Hep.’ The character on which it is mainly founded—the fringed keels of the trigonous perianth— is neither very strongly marked nor very constant; but the plants have another and more important character, viz., the presence of flagella—not postical but lateral branches, attenuated and subaphyllous at the decurved and rooting extremity, which brings them into close relationship with a group, consisting of Lejewnea auriculata, Wils. (=Phragmicoma versi- color, Lehm. et Lg.), Phragmicoma humilis, G. (=Phr. repleta, Tayl.), Phr. ligulata, Nees, and a few others, mostly relegated in the ‘Synopsis’ to Phragmicoma, but some to Lejeunea. These all agree with typical Thysananthus in habit, rooting flagella, lingulate leaves, repeatedly and closely innovant inflorescence, and trigonous perianths ; and only differ in the entire underleaves and perianths. To this group I have applied the name Mastigolejewnea, on account of the flagella, which scarcely exist elsewhere in Lejewnea. The next genus is Ptychanthus, comprising several species, all Oriental (chiefly Malayan) except one South American, Ptych. Theobrome, n. sp., found by myself on cacao trees near Guayaquil. Their aspect is almost of Bryopteris, but more laxly pinnate, and with more distant leaves. A more essential difference resides in the 7—10-plicate perianth, and in the branches being at least once—sometimes repeatedly—innovant, and floriferous at each successive apex. Phragmicoma was founded by Dumortier on a solitary species, Junger- mania Mackaw, Hook. As it stands in the ‘Synopsis’ it can only be described as an agglomeration of species of various distinct types, one of which (Mastigolejewnea) I have indicated above. Of the two sections into which the genus is divided in the ‘ Synopsis,’ the first, comprising those few species with a perfectly complanate perianth, such as Phr. Mackait, Phr. Guilleminiana, and Phr. Bongardiana, is truly a natural group ; but one of the characters assigned to it, “ Pedicellus capsule in planta exsic- cata levis,” is no character at all; for the pedicel in these species, as in all other Lejeunee, is built up of horizontal tiers of cells, which are lengthened out at maturity, and the resistance to shrinkage of the lateral walls is merely a difference of degree, leaving the dried pedicel nearly or quite smooth in several of the robuster species, and nodose at the join- ings of the tiers in all the more delicate ones. The definition of “§ 2, Ptychanthoides. Perianthium a latere compressum, carina dorsali una binisque ventralibus instructum. Pedicellus internodiis (post exsicca- tionem) tuberoso-geniculatus ”* is disfigured by two errors ; for the com- pression of the perianth is not lateral but frontal, as in every Lejeunea,— indeed as in all Jubulee ; and the pedicel in some of the species is as smooth as that of Phr. Mackaw. Moreover, the “perianth unicarinate above, bicarinate beneath,” along with roundish entire under leaves, exactly corre- sponds to a number of species that figure in the ‘Synopsis’ not as Phragmicome but as Lejewnew,—such as L. unciloba, Ldng., L. clypeata, Schwein., LZ. Leprieurit, Mont., &e. In Phragmicoma is included a * ‘Syn. Hep.,’ p. 294, 2 LEJEUNEA, group (Acrolejewnea nob.), represented by many Oriental but few Ameri- can species, which has the rare character of the perianth being terminal on the stem, or on long branches, without any subfloral innovation. Another group (Brachiolejeunea nob.) has the terminal ? flower subtended by two opposite innovations, stretching almost horizontally, like a pair of arms, beneath the large pluriplicate perianth, and giving the stem (or branch) the figure of a crucifix. A few species attributed to Phragmi- coma belong more properly to Thysananthus, and others to Ptychanthus. The fifth genus, Omphalanthus, Lg. et N., I would limit to the “31, Amphigastriis indivisis” of the ‘Synopsis, which consists hitherto of but a single species, the Jung. filiformis of Swartz, of which J. geminiflora, Nees in Mart., Fl. Bras., is scarcely even a variety. It is perhaps the most widely distributed of any Lejewnea in the wooded mountains of tropical America, from the West Indies to Chili, but is absent from the Amazonian plain. Although it grows scatteredly, creeping over mosses and partly pensile, and is nowhere abundant, it 1s conspicuous from its long, brown, often nearly simple stems, its very large shield-like stipules, and its rather rigid, ovoid, eplicate perianths. A close ally of this species, although placed far apart from it (in Lejewnea) in the ‘Synopsis,’ is L. ovalis, Lg. et N., Peltolejewnea nob., which has the same slender ser- pentine stems, with very few short subopposite branches, the 9 flowers 1-3 on a very short innovant ramulus, and broad scutate underleaves, so de- current or cut out at their insertion that the actual base is a parabolic or semielliptic line on the stem; but it differs essentially in the acutely 5-gonal long-beaked perianths, those of O. filiformis being very obscurely trigonous when young but terete at maturity, with a depressed apex. The species placed in “3 2, Amphiqustris bifidis” have only a remote affinity with the first. The underleaves, although sometimes nearly equalling the leaves, are bifid at the apex—in only two species, by rare exception, entire—and, instead of being decurrent at the base for half their length, are usually cordate, with free auricles. The very small, tender perianths are not altogether eplicate (as at first described in the ‘ Synopsis’), and, in the young stage at least, are distinctly 5-gonal at the apex. The authors, indeed, found themselves obliged ultimately to admit species with very distinctly angular perianths, eg., O. pterogonius, O. lusorius, &c., and to modify the generic character thus: “ perianthium apice obtuse subplicatum vel quinquangulum.” * The character thus extended would comprise (besides the so-called Omphalantht) nearly all typical Lejewnee with bifid stipules, including our own L. serpyllifolia. The true affinity of the species. of this second section, with minute, closely-set flowers on a wniparous cyme, and usually acuminate leaves, is with many of the Lejewner, 3 Acutifoliw of the ‘Synopsis, with which, therefore, I have combined them to form the subgenus Tacilejewnea. The five genera thus separated from Lejewnea comprise scarcely more than one-sixth of the monogynous Jubulew described in the ‘Synopsis,’ the whole remainder being consigned to Lejewnea, and divided into a number of sections and subsections, a few of which are natural groups, although in most there is a good deal of dislocation, nor do the species always correspond to the sectional character under which they are arranged. Thus, under “ 2 1, Phragmicomoidee, Perianthium a tergo compressum, Ventre convexo, &c.,” is placed No. 1; L. transversalis (Sw.) « «Syn, Hep.,’ Appendix, p. 746, LEJEUNEA. 73 “ perianthiis lateralibus obovato-oblongis dorso concaviusculis ventre con- vexis, margine oreque inciso-ciliatis ;” and under “§ 2, Typice. Perianthium ambitu teretiusculo ventre lateribus tergoque etiam carinatis,” is placed No. 35, L. lunulata (Web.) “ perianthiis lateralibus obovatis compressis ventre obtuse carinatis apice oreque spinuloso-dentatis.” A comparison of the descriptions of the perianths of these two species shows plainly how very near they are to each other. The perianth of L. lunulata is in fact as much compressed as that of L. transversalis, obtusely keeled beneath, and margined with a similar sharply-toothed wing; so that, on placing the perianths side by side, we at once pronounce them to belong to two closely-allied species, as they really do, although there are differ- ences of ramification and foliage amply sufficient to keep them apart. The species of Lejewnea are perhaps the most elegant and delicate of all hepaticee. They abound in the wooded plains and mountains of all tropical countries, but are rare and of few species in the temperate zones ; and they have been so seldom gathered by any one previously conversant with the order, that they have been less generally studied than most others. Careful observation of their habits, aspect, and structure, in their native forests, as well as in the cabinet, has led me to the conclusion that the entire genus is divisible, and ought to be divided, into subgenera. This task I have set myself, and how far or how well I have succeeded in performing it, I must leave to the judgment of others. I can at least claim that all my subgenera are natural groups, and (as nearly as I could make them) of approximately equal value. Some of them, indeed, seem .to me more distinct than most of those separated as “genera” in the Synopsis. I may instance Sfictolejeunea, which, besides the unique character of the leaves and other appendages being beset with pellucid dots, has the flattened urniform perianth dilated at each apical angle into large round auricles, often bordered with white, that give it a remarkable resemblance to the head and ears of that curious Andine rodent, the chinchilla. Odontolejewnea, also, is a very distinct and natural group, of whose affinity to the genus Jubula I have already spoken. Whoever shall carefully study these plants will plainly perceive that several of my subgenera of Lejewnea are equivalent to certain genera of Jungermaniee, of whose right to that rank no one seems to have any doubt: It follows that either some recombination is needed among the latter, or else that the genus Lejewnea should be broken up into several genera. Without venturing to decide this knotty point, I would suggest that although, when the hepaticze of the whole world, or of a notable portion of its surface, are under consideration, a good deal of subdivision may be found requisite ; for a local flora or a limited area, too many genera will tend to produce confusion rather than precision, especially where several of the genera are monotypic; so that, on the whole, it seems desirable to make our genera as comprehensive as possible. For the sake of reconciling both views of the question, I have named all my subgenera by prefixing to the word Lejewnea some characteristic term—thus, Sticto- Lejeunea, from the dotted leaves: Priono-Lejeunea, from the finely serrated leaves; Diplasio-Lejeunea, from the two-ranked stipules, &c. For groups previously separated as genera which I adopt, wholly, or in part, as sub- genera, I have retained only so much of the name as may conveniently be added on to Lejeunea, thus Bryo-Lejeunea for Bryopteris, Thysano-Lejeunea for Thysananthus, &c. This merely for uniformity; but, whether as genera or subgenera, it matters not which name, of each pair of synonyms, is adopted. TRANS. BOT. SOC. DIN. VOL, XV. K 74 LEJEUNE& HOLOSTIP. CONSPECTUS SUBGENERUM. I. LEJEUNEX HOLOSTIP ( foliolis integris). § 1. Caules bast ipsa matrict haustoriis fasciatis v. scopweformibus repentes, pro majore parte autem liberi, assurgentes pendulive, fereque arhizi, vel, in paucis spectebus laxe repentibus, hice illic radvcellost. Folia im plerisque integerrima, in paucis apice dentata. Perianthia varia. A. Folia vel punctata vel lineata (falsinervia). Per. compressa, wpice insigniter biaurita. 1. Sricro-LesEuNEA. F. ete. e cellulis majoribus pellucidis, inter normales subzequidistantibus, punctata. 2. NeuRo-LEsEUNEA. — F. e cellulis majoribus discoloribus uniseriatis (moniliatis) a basi adusque vel ultra medium quasi-nervata. B. F. cellulis omnibus subconformibus, nec punctata nec lineata. a. Rami 2 innovando-floriferi, pro more monotropi, raro primum dichotomi dein monotropr. a. Foliola orbiculata ovaliave dimidio infero in caule decurrentia. 3. PELTO-LEJEUNEA. Per. pentagono-obpyramidata. 4. OMPHALO-LEJEUNEA. Per. fere teretia ecarinataque. a,. Foliola basi sepius angusta inserta, nec decurrentia. * Per. argute 4-5-carinata, carinis rudimentarie alatis scaberulis. 5. ARCHI-LEsEUNEA. F. rotundata foliolaque integerrima,’ lobulo majusculo rhomboideo seepius subplano integerrimo. ** Per, 7-10-carinata levia. 6. Prycuo-Leseunea. Caules elongati laxepinnati, flagellis0. F. acuta foliolaque apice plerumque spinulosa. *k* Per. trigono-prismatica. t Alu rami apice flagellari radicantes. Rami 9 valde confertiflori, monotropr. 7. Mastico-LesEunra. Per. carinisinermia. F. foliolaque integerrima. 7;. THYSANO-LEJEUNEA. Per. carinis spinosa. F, foliolaque apice spinulosa. tt Rami flagelliformes nulli. 8. Denpro-LeseuNEA. Per, obcordato-oblonga triquetra, carinis later- alibus cristatis. Rami ? interdum dichotomi. F. foliolaque apice argute serrata. b. Rami 2 simplicissimi nisbeilag ve} » Bryo-Leseunea. Elata plumeformi-pinnata v. 2-3-pinnata, in unica sp. iteratim dichotoma, semper autem cladocarpica, F. apice acu- minato serrata. Per. fusiformia triquetra inermia. ce. Rami Q simplicissimi sepe elongate. 10. Acro-Leseunna. Vage ramosa. F. conferta obtusa integerrima. Per, v. 4-5-carinata v. 7-10-plicata, inermia. 11. LopHo-Leseunra, » Laxe subpinnata. FF. subimbricata rotundata v. subacuta integerrima. Per. compressa 4-carinata, carinis late alato- cristatis. d, Rami 9 brevissimi, innovatione subflorali minuta stmplice aucti, LEJEUNEZ Ho.Lostir#. faa 12. Puary-LeseuNEA. Elata, badia, serpentino-repens subramosa. F. magna late lingulata integerrima. Per. valde compressa, margine ciliata, facie postica subobscure carinulata, carinis paucispinis inermi- busve. 13. ANopLo-LEJEUNEA. Humilis pallida. Per. vix compressa 5-carinata, omnino inermia. e. Caules ramique fertiles apice simpliciter v. seepius iteratim dichotome (brachiati), flore 9 in axillis, g sepissime hypogyno. 14. Bracuio-LeseuNEA. Per. parum compressa 3-10-carinata inermia. F. fere semper integerrima. 15. Homato-LEeseUuNEA. Per. valde compressa fere planissima, margine inermia. F. utplurimum apice argute dentata. 16. Dicrano-LesEUNEA. Per. compressa, obcordata, margine ciliato- alata, postice convexa inermiaque v. subspinulosa. F. apice dentata. § 2. Caules arctissime repentes, haustoria disciformia e cujusque foliolr bast proferentes. Folia foliolaque swpius toto fere amlnitu argute dentata. Perianthia obcordata valde compressa, dorso convexo levia, margine alato- cristata. 17. Oponto-LEsEUNEA. Foliola apice integra, in 0. L. Peruviana sola seepe biloba. Flores omnium, 0. L. cherophylla excepta, dioici. II. LEJEUNEA SCHIZOSTIP (foliolis bifidis). 21. Foliola folvis alternis tributa. A. Perianthia conpressa, antice ecarinata, postice wnicarinata, apice obcordata, margine sprnulosa. 18. Priono-LeseuNEA. Pusillee. Folia acuta, margine (rarius etiam facie) muricuiata. Foliola parva bifida pro more integerrima, Rami 9 simplices v. innovantes. Flores perseepe monoici. B. Perianthia haud v. minus compressa, postice bicarinata, carina antica conspicua obsoletave ; in paucis turgida omnino ecarinata. a. Perianthia sepissime ad marginem et carinas armata—papillosa, nuri- culata, spinulosave, carinisque interdum apice horizontaliter spiniformi- dilatatis—rarius inermia. Plante pusille minuteve, raro mediocres. Foliola perseepe minuta, raro mediocria, in unica T'rachy-L. acanthina magna. * Foliola vel subrotunda ad medium circiter bifida, seqmentis subacutis ; vel late cuneata obcordato-emarginata-bilobave (in unica Harpa-L. holostipa integra), segmentis rotundatis. 19. Crossoro-LEJEUNEA. Parvule, concinne depresso-ceespitosee mo- noice. Folia supra lobulum divergentia, acuta crenulata facie papu- losa. Foliola 2-plo breviora, seepe utrinque unidentata, ultra $ bifida, segmentis patulis subacuminatis. Rami 9 iteratim innovati ; bracteze complicatee parvilobulate subdenticulate. Perianthia sub- compressa 5-carinata, carinis ala incisa fimbriatis. Br. ¢ minus- cule diandree, 7 6 LEJEUNEH SCHIZOSTIPA. 20. Harpa-Leseunrna. Pusillee minuteve depresso-ceespitose, raniis 0). seepe arcuatis. Folia hamata fornicatave plerumque subacuminata, interdum crenulata subserrulatave, leevia asperave, nonnunq. ocellata, lobulo majusculo turgido ; cellule minutulee leptodermes planie vel conico-prominule. Folola 3-7-plo minora, in aliis obcordato- cuneata, aliis rotunda ad 4 bifida. Fl. monoici vel dioici: Q in ramo brevi terminales, innovatione (plerumque simplice) suffulti ; bracteze lobulate raro complicate: subcrenulatie ; bracteola biloba, vel truncato-retusa. Perianthia seepe pro ratione maxima pyri- formia 5-carinata, carinis sepius scabris vel etiam spinosis. Amen- tula ¢ brevia tenuia; bractece parvie 1-2-andree. Srrepsi-LEJEUNEA. Prioris sectio (?) differt habitu robustiore, foliis apice decurvo-tortilibus; foliolis majoribus dimidium folium equan- tibus; perianthiis latioribus subulato-carinatis levibus; bracteis magnis seepe plurijugis. 21. TrRAacHy-LEJEUNEA. Majusculee prostrate, in vivo pallide aqua replete, in sicco seepe fascidulee, caule valde tenaci colorato pinna- tim ramoso, ramis sepe arcuatis. Folia decurvo-fornicata seepius subacuta celluloso-crenulata-serrulatave, in unica specie spinosa, facie plerumque asperula, in paucis muricato-asperrima, seepe ocellata, lobulo parvo; cellulee mediocres parveeve subpachydermes. Foliola plerumque foliis 2-7-plo minora integerrima Vv. rari i in Tr. L. acanthina foliis fere majora spinosa. Flores omnium fere monoici. Rami 9 brevissimi, in plurimis simplices, in perpaucis innovatione simplice aucti; bractex elons gatee hamate denticulate lobulatze complicatee (vel non); bracteola angusta—raro latior—bre- viter bifida integrave denticulata (in 7’. L. acanthine argute bispin- osa). Perianthia seepe colorata subclavata rotundato-truncata com- pressa, carinis 5 tenuibus vel subulatis papillosis, in paucis speciebus tota facie aspera; in Tr. L. acanthina autem fere rotunda sublevis- sima. Bracteze ¢ paucijneze diandre. ** Holiola bipartita, seymentis setaceis divergentibus (in L. palmifolia erec- tis); raro solum bifida, seymentibus subulatis. 22. DrepaNno-LeEJEUNEA, Pusillee minutieve laxe reptantes. Folia dis- sita decurvo-hamata angusta (2—4-plo longiora quam lata) lanceolata acuminata seepe papulosa raro ocellata, crenulata subspinulosave (in Dr. L. palmifolia paucisque aliis pectinatim laciniata), lobulo fusi- formi turgido; cellule parvee vel subminute subleptodermes. Foliola minuta bipartita, cruribus setaceis, in Dr. L. hamatifolia solum bitida, eruribus subulatis. Flores omnium fere dioici: 2 in ramo_ brevi terminales, innovatione simplice suffulti. Bractee: foliis sat majores, concave (vix complicatée) subsequilobie spinulosee cum bracteola inter- media angusta bifida basi connate. Perianthia 5gono-obpyramidata, carinis raro inermibus plerumque superne spinulosis, apiceque spini- formi quasi-cornutis. Androecia longispica; bractee ad carinam celluloso-moniliatee, monandree. Lepto-LEJEUNEA. _'p usillee tenui strato in maculas seepe orbiculatas erescentes. Folia subdissita plana anguste oblonga rotundata suba- cutave, raro apice 2—3-fida, perseepe oc ellata, lobulo 2-4- -plo breviore subplano; ec. mediocres, pariete subincrassato. Foliola parva bipar- tita, cruribus setaceis (raro ad cell. unicam redactis). Fl. plerumque monoici. Rami 9 brevissimi sepissime simplices, in paucis inno- vatione -simplice aucti; bractese subeequilobie interdum. serrulate, LEJEUNEZ SCHIZOSTIPA. vith cum bracteola bifida alte connatee. Per. obpyramidata 5-carinata, carinis apice truncato-dilatatis subcornutisve. Br. ¢ paucijugie diandree, b. Perianthia swperne 4-5 angula, angulis apice in cornua erecta vel varie patula sepeque prelonga protractis. 24. Cerato-Lejeunea.—Humiles vel sat robusta, seepe dense late depresso- ceespitose lurido-rufee plus minus nitide pro m. vage ramos. Folia paulo imbricata oblique ovata oblongave, apice decurvo (in sicco subinvoluto) varia, superiora seepius acutiora et. haud raro dentata—rarius toto fere margine serrulata—basi sxepius ocellata; lobulus parvus inflatus, ad ramorum basin autem perseepe cum lobo in utriculum magnum convolutus; cell.-parvulee v. fere minutule subplanee. Foliola in pusillis’parva ad § bifida, in elatioribus seepe magna reniformia apice bidentata, fere semper integerrima. FI. monoici v. dioici: 2 terminales, hinc vel utrinque innovati; bractez foliis subsimiles magis dentatee ; bracteola ovalis bifida. Androecia plerumq. ramulo proprio constantia brevi-v. longispica. ce. Perianthia in aliis ecarinata inflata, apice 4-5-cristata-auricula- tave vel inermia ; in alvis superne 4-5-anqulata, angulis levibus papulosisve. Rami 2 innovando-pluriflori, vel (in Macro-Lejeuneis) simplices uniflori.— Plante pallid daccide laxe texte, alice inordinate elongate. Folia seepissime acuta, lobulo perparvo nullove. Foliola magna mediocriave, in perpaucis parva. Bracteze pro m. denticulate. Amenta ¢ lateralia minuta incurva. 25, Taxi-LesEUNEA.—Elatée humilioresve albido-virides pellucide, laxe pinnate, tenui strato repentes penduleeve. F. parum imbricata ovato- triangularia seepe subacuminata raro rotundata, apice serrata inte- gerrimave, lobulo perseepe obsoleto; cellule mediocres majusculeve leptodermes fere vacue. Foliola ;seepe magna raro parvula, basi cordata rotundatave, apice breviter—raro ad vel ultra 4—bifida. Florescentia (im omnibus?) monoica. Flores ? in ramo-iteratim innovando parvifolio seriatim secundi, quasi-laterales, raro ad 2-1 redacti; bracteze lanceolatee pro more denticulate, lobulo parvo nullove; bracteola ovalis bifida raro integra, Perianthia seepe parva pellucida obconica vel pyramidata levia vel apice 4-5-cristulata. § 1. Codonocolea.—Perianthia parva tenerrima obconica ecarinata vel ipso apice carinulas 4-5 (seepe cristatas) ostendentia.—Folia magna seepius apice serrata. Foliola seepe maxima cordato-reniformia, apice levissime emarginata v. etiam integra, raro bifida. § 2. Pyramidocolea.—Perianthia submajora a medio—raro fere a basi— 5-angula, angulis apice ecristatis.—Folia mediocria majusculave, rarius apice subserrata. Foliola foliis 2-3-plo minora, apice ad 3-4 bifida. 26. Macro-LiseunEA.—Tazxi-Lejeunee Codonocolew e perianthiis parvis inflatis apice solum corrugatis aftinis, differt ramis Q simplicibus unifloris innovatione carentibus, florescentia dioita, et foliis acuminatis sepe convolutivis.—Caules interdum inordinate elongati. Foliola maxima cordata. 27. Or1con1o-LEJEUNEA.—Perianthia habet fere Codonocolearum nonnul- larum, fere teretia, apice solo carinata, carinis in auriculam erectam integram v. fissam—y. saltem in umbonem—protractis; mnecnon LEJEUNEA SCHIZOSTIPA. ramos Q utplurimum multifloros ; differt autem statura pusilla foliis ete. in sicco, difficillime emolliendis; foliolis parvis vel minutis; perianthiis pro m. involucro elongato immersis. suberostribus, calyptree stylo alte protruso rostellum simulante. d. Perianthia omnium carinata imermia, sepissime levia, ir paucis ad carinas tuberculosa. * Foliola maxima, raro solum majuscula. 28. Hyaro-LesEuNEA.—Elatee speciose laxe texte tenerrime, valde hygrophore, pallide, in sicco sepe fuscescentes, Inodore, pro m. dense stratiticate, ramificatione varia ex parte dichotoma. Folia sat magna subimbricata semicordata acuta, raro obtusa rotundatave, a lobuli parvuli inflati apice divergentia, seepius celluloso-crenulata, facie subleevia; cellule mediocres convexule, pariete vix incrassato, Foliola seepissime maxima, paucis sp. integra, ‘plerisque apice biden- tata vel breviter bifida. Flores omnium dioici : ? inramo hine vel utrinque innovando szepeque prolifero terminales ; bracteze com- plicato-lobulatee subacuminatze seepius crenulate raro spinulosee ; bracteola obovata emarginata vel subbifida, in unica integra. Peri- anthia pyriformia subcompressa 5-carinata, carinis fere leevibus apice rotundo-prominulis—in unica sp. insigniter auritis. Amenta ¢ spe terminalia brevia; bractez mediocres antheridia bina magna fo- ventes. 29. Evosmo-LrsEUNEA.—Elatiuscule firmiuscule pallide flavideeve suay- eolentes, prostrate: vel pendulie, laxe pinnatim ramose. Folia im- bricata devexula semicordato-oblonga rotundata, rarissime acuta, asperula rarius levia, celluloso-crenulata ; cellulae mediocres par- veeve prominulie euttulatee, pariete ad angulos valde incrassato. Foliola foliis fere aquimagna cordato-remiformia- -orbiculatave, apice breviter bifida bidentatave. Flores omnium fere dioici: 2 im ramo iteratim innovando terminales; bractez complicate angustilobee integerrimie crenulateeve ; bracteola angusta (in unica sp. orbiculata) apice bidentata. Perianthia elongata alte 5-carinata, carinis levibus asperulisve. Bracteze ¢ pauci-plurijuge majuscule diandree. *™ Foliola mediocria parvave, raro minuta. Pycono-LesEUNEA.—Majusculee albicantes pellucidissimee subodore, arcte repentes subramosze. I. confertissima concava semicordato- oblonga rotundata, papulosa, interdum ocellata, lobulo vel mediocri inflato vel preelongo cylindrico-convoluto; cellule subparvee alte prominule, Foliola 2- plo breviora reniformia ad 4 + bifida. Rami 2 innovandi; bracteee longee incurvee complicate: subinaequilobee acuninulate; bracteola lata bidentata vel integra. Perianthia obovata turgida argute 5-carinata. Br. ¢ majuscule pauci-pluri- jugee. PoramMo-LEsJEUNEA.—Majuseule lurid prostrate. Folia subimbri- cata subplana rotundata recte complicata, lobulo majusculo plano, cellulis parvulis, Foliola dimidium folium subeequantia subrotunda ad 3-3 bifida, segmentis acutis. Rami Q breves, innovatione sim- plice nullave suffulti; bractese foliis subconformes. Perianthia 4—5-gona, apice vel truncata vel carinis apice umbonato-prominulis. Br. d majuscule seepe plurijugee, LEJEUNEZ SCHIZOSTIPA. 79 32, Curito-LeseunrA. Humiles depresso-ceespitose varie colorate, in sicco seepe luride rufescentes, eaule vage ramoso perseepe ramis microphyllis pinnulato. Folia nunquam conferta patentissima semi- cordato-oblonga rotundata papulosa, integerrima interdum celluloso- erenulata, lobulo semper preesente 3-4-plo breviore turgido; cellule parvee chlorophyllo copioso subopacie. Foliola 2-4-plo minora subro- tundaad $ bifida, subintegerrima, segmentis acutis. Ramus Q brevior longiorve, in plerisque simplex, in paucis innovatus; bracteze lobu- latee falcato-divergentes incurvee integerrimie; bracteola anguste ovalis breviter bifida v. integra. Perianthia rufa sat compressa, carinis posticis humilibus .obsoletisve spe in unam latam fere confluentibus, demum ore bilabiata. Calyptra aurantiaca. Bractex dg majuscule pauci-plurijuge 33. Eu-LeseuNEA. Mediocres vel pusille, seepius virides vel albicantes, 35 pinnate vel vagee. Folia subimbricata vel dissita, ovata ovaliave obtusa rotundatave, in perpaucis acuta, integerrima vel raro celluloso- erenulata, lobulo seepius parvulo (interdum obsoleto) inflato vel sub- plano; cellule mediocres parvulve, seepius plan pro m. leptodermes, chlorophyllo parco. Foliola raro $ folium excedentia, plerumque 2-3-plo (in sp. pusillis 4-7-plo) minora, ad 3-5 (rarius ad ? usque) fissa, segmentis pro m. subacutis, nunquam late obtusatis. Flores omnium fere monoici: @ terminales, innovatione (simplice vel pro- lifera) suffulti; bracteze foliis angustiores complicate, lobulo parvo nullove, integerrime ; bracteola plerumque angusta brevissime vel ad 4 usque bifida. Perianthia plus minus pyriformia compressula— in paucis magis compressa obcordatayue—5 carinata, carimis raro per- acutis, semper inermibus, levissimis vel perraro tuberculosis, An- dreecia semper fere ramulo tenui constantia, raro terminalia; bractez parvule raro plurijugee. 34. Micro-LreseunEA. Eu-Lejeuneis Microstipis similes, minutiores. Folia minuta dissita integerrima vel celluloso-crenulata lobulo vel majusculo 4 folium equante (nunc obsoleto) vel lobo fere zqui- magno, cum eodem ad conch instar convoluto; cellule parvee minutzve (,-75"™™) sepe opacule. Foliola preeminuta profunde bifida, segmentis subulatis. Flores in omnibus fere dioici: 9 ter- minales innovati. Perianthia Hu-Lejeunce. 22. Foliola nulla; haustoria cuique folio tribute. . Coto-LEJEUNEA. 1. Physocolea, perianthiis turgidis argute 5-carinatis, rarissime fere ecarinatis.—Plantz pusille preminuteve fragiles vage v. raro pinnatim ramosee, caule ramisque ad foliorum insertionem geniculato-flexuosis. Folia dissita, basi perbrevi fere trans- versa, subrotunda et vel solum concava (nec complicata) lobulo vix ullo, vel margine postico toto fere incurvo conchoidea; in paucis angustiora acuminataque, lobulo mediocri normali; facie seepius papulosa rarissime muriculata; cellule parvee lepto- dermes pro m. obtuse (raro acute) prominule. Flores omnium fere monoici. Rami ? innovati; bracteze laxe foliis vix di- verse, raro complicate. Br. ¢ monandre, in unica C. L. calcarea interdum diandre. 80 LEJEUNEZ SCHIZOSTIPA. 2. Leptocolea, perianthiis valde compressis seepe obcordatis, postice convexis subobsolete 2-carinatis—Plante pusille, grandifolize autem, seepe rufescentes. Folia planiora sublingueeformia, normaliter parvilobulata. Bracteze foliis multo minores com- plicatie, altera minuta cequiloba. § 3. Foliola duplicata, i.e., ewique folvo tributa. 36. Drenasto-LeseuNEA. Pusillee grandifoliz rufescentes fragiles seepe- que tenuissime. Folia plana, insertione peraugusta, dein oblongo- rotunda, infra medium complicata, plica margine bidentata vel subulata-unidentata. Foliola cuneata bifida-partitave. Bractec parvee complicatee subsequilobee. Perianthia oblonga preealte 5-cari- nata. : 37. Coturo-LesEUNEA. A priore differt foliorum lobo inferiore (nec superiore) majore, apiceque in clavam cornuve convoluto-elongato. Bracteze minute integre seepe retusee. Perianthia campaniformia 5-carinata, carinis apice brevicornibus. Preeter hos caracteres essentiales, liceat adducere alios, minus constantes quidem, utiles autem pro subgeneribus Schizostipis discriminandis. Plante elatiores sepeque grandifolie sunt Euosmo-Lejeunee, Hygro- Lejeune, plereeque Taxi-Lejeunee et Macro-Lejeunee, nonnullee Cerato-Lejeune et Potamo-Lejeunece. Pl. statura mediana: Trachy-Lejeunez, Cheilo- Lejeune, Pycno-Lejeunee, nonnulle Taxi-Lejeunee, Eu-Lejeunee et Cerato-Lejeune, pauce Colo-Lejeunee. Pl. pusille: omnes fere Priono-Lejeunee, plures Eu-Lejeunez, Cheilo- Lejeune, Otigonio-Lejeuneze, Lepto-Lejeunez, Colo-Lejeunese, Dip- lasio-Lejeuneve, paucee Harpa-Lejeunee. Pl. exiqgue minuteve: plereeque Drepano-Lejeunee, Harpa-Lejeunee, Micro-Lejeuneve, paucee Colo-Lejeunee. Folia acuta in Priono-Lejeunea, Drepano-Lejeunea, Crossoto-Lejeunea, in plerisque Harpa-Lejeuneis, Trachy-Lejeuneis, Cerato-Lejeuneis, Taxi-Lejeuneis, in nonnullis Macro-Lejeuneis, Otigonio-Lejeuneis et in paucis Eu-Lejeuneis ; obtusata rotundatave in ceteris fere omnibus. Folia bracteeque apice saltem denticulata serrulatave, vel margine toto fere celluloso-muriculata, in plerisque Priono-Lejeuneis, Trachy-Lejeuneis, Drepano-Lejeuneis, Cerato-Lejeuneis, Taxi-Lejeuneis, et im non- nullis Crossoto-Lejeuneis, Harpa-Lejeuneis, Lepto-Lejeuneis, Macro- Lejeuneis et Otigonio-Lejeuneis; in Trachy-Lejeunea acanthina spinosa, in Drepano-Lejeuncis nonnullis pectinatim laciniata. Folia bracteaque integerrima (vy. solum obscurius celluloso-crenulata) in plerisque Pyeno-Lejeuneis, Potamo-Lejeuneis, Cheilo-Lejeuneis, Eu- Lejenneis, Micro-Lejeuneis et Colo-Lejeuneis, Diplasio-Lejeuneis et Coluro-Lejeuneis, seepeque in Hygro-Lejeuneis et Euosmo-Lejeuneis. Folia luxe texta, cellulis mediocribus v. etiam majusculis—raro parvulis— pro m. leptodermibus, in omnibus Hygro-Lejeuneis, Taxi-Lejeuneis, Macro-Lejeuneis, Otigonio-Uejeuneis, Coluro-Lejeuneis, in plerisque Lepto-Lejeuneis et Eu-Lejeuneis. Folia reti spissiori, e cellulis vel minutis. vel pachydermibus, interdumve magis chlorophyllosis, in ceteris fere omnibus Schizostipis invenimus. Folia plus minus aspera, e cellulis obtuse, acute, v. etiam setoso-pro- minulis, habemus in Trachy-Lejeuneis et Pycno-Lejeuneis, in non- LEJEUNEA SCHIZOSTIPA. 81 nullis Priono-Lejeuneis, Crossoto-Lejeuneis, Harpa-Lejeuneis, Cheilo- Lejeuneis (gradu minore), in paucis Drepano-Lejeuneis, Enosmo- Lejeuneis et Colo-Lejeuneis. In ceteris fere omnibus levia sunt, vel e cellulis' convexulis leniter papulosa. Foliola maxima (interdum foliis superficie equimagna v. etiam majora) in plerisque Hygro-Lejeuneis. Taxi-Lejeuneis codonocoleis, Macro- Lejeuneis, in nonnullis Cerato-Lejeuneis et in Trachy-Lejeunea acanthina. In ceteris mediocria, parva minutave. Foliola, quamvis normaliter bifida, in paucissimis speciebus integra inveni- untur, sc. in Harpa-Lejeunea holostipa, in Hygro-Lejeunce. speciebus 3, in 2 Taxi-Lejewneis et in Cerato-Lejeunea unica. Bracteole integree minus infrequentes sunt, sc. in paucis Cheilo-Lejeuneis, Harpa- Lejeuneis, Hygro-Lejeuneis et Taxi-Lejeuneis. Rami } simplicissimi (s. cladocarpici), sine ulla innovatione, invenimus in Cheilo-Lejeuneis fere omnibus, in omnibus Macro-Lejeuneis (sub- genere speciebus paupere), in plerisque Trachy-Lejeuneis et Lepto- Lejeuneis, in multis Priono-Lejeuneis et in Potamo-Lejewnea poly- stachya. Tales rami haud semper perbreves sunt, e contrario in Cheilo-Lejeunea folia plurijuga infra florem terminalem haud raro ostendunt. In ceterum subgenerum speciebus omnibus adveniunt flores 2 in ramo brevi longioreve (rarius-in ipso caule) terminales, innovationem e basi proferentes simplicem vy. in plurimis iteratim innovando-proliferam. In Taxi-Lejeuneis rami 9 sunt parvifolii iteratim innovati, floribus confertis seriatim secundis ad speciem lateralibus. Bractee + constanter monandre in Drepano-Lejeunea et Colo-Lejeunea, in ceteris omnibus Schizostipis diandre nonnisi raro casu monandree, rarissime triandre. Suscenus I.—STICTO-LEJEUNEA, S. Plante elat, pulcherrime, e viridi albicantes fulveeve, corticola et rami- cole, seepe ultra matricem horizontaliter porrectes pendulve, in planum pinnate bipinnateve, seepe eleganter plumeformes, caule rufo nigrescenteve tenaci cellularum stratis plurimis conflato, foliis ceeterisque appendiculis e cellulis majoribus pellucidis inter normales sparsis ad speciem ocellatis porosisve. Folia sat magna imbricata subplana semicordato-oblonga rotundata inte- gerrima, lobulo preeminuto involuto sepe decurvo-corniformi ; cel- lula minutule firme licet leptodermes, trigonis nullis, subpellucide, inferiores elongate; ocelli ubique intervallis subeequalibus dissiti: omnes cellulze parum chlorophyllosz. Foliola imbricata, foliis zquimagna sed oblata, reniformia integerrima. Flores dioici: @ ad caulem v. ramum primarium, in ramulo brevissimo, foliis solum unijugis minutis infra florem stipato, terminales, inno- vatione brevi parvifolia simplice suffulti. Bracteze foliis fere duplo minores, complicato-bilobe, altera (interior) major, lobis inequalibus, altera minor, obcordata, lobis equalibus; bracteola obovata. Perianthia foliis caulinis sabeequimagna urniformia valde compressa apice profunde biloba, lobis (auriculisve) spathulato-rotundis planis exalatis, seepe scarioso-marginatis, postice humiliter obtuse unicari- nata, capsula emissa bilabiata. TRANS. BOT. SOC. EDIN. VOL. XV. L 82 SrTicto-LEJEUNEA. Andrecia vel ramulum totum folio caulino sublongiorem, vel rami pri- marii apicem tenentia; bracteze 6-10-jugze arcte imbricate equaliter biloba. ; Inter Lejeuneas insignis, *solumque cum Platy-Lejeunea, e fl. 2 later- alibus, innovatione simplice suffultis, necnon bractea altera equiloba comparari potest; differt vero hee colore badio; caule flaccido pauci- rameo; foliis, etc. epunctatis; sed preecipue perianthiis margine ciliato- cristatis, apice exauriculatis. Revera Neuro-Lejeunee (quam videas) multo magis affinis est. Hab. In fruticum ramis, in sylvis opacis, secus rivulos preecipue. Distr. In sylva Amazonica fere tota, in Andibus humilioribus Peru- vianis et Aiquatorialibus, cordillere tam orientalis quam occidentalis, ipse legi. In tota America tropica, ab insulis Antillanis per Braziliam ad Chili usque, reperta est.—Stirpes mere Americane, in Oriente nondum vise. 1. Sticto-LEJEUNEA SQUAMATA, Jung. squamata Willd. in Web. Prodr. 33. Lejeunea s. Nees, G. L. et N. Syn. Heb. 322. Hab. in fruticum ramulis secus rivulos, rarius in arborum cortice, per Andium: orientalium radices, nusquam supra 600 m. ascendens: locis Tarapoto, fl. Bombonasa, Pastasa, etc.; in planitie (quoad formam per- fectam) rarior: fl. Negro juxta montem Cocuz (inter Braziliam et Venezuelam litem), ete. F 1:2x°85, 1:1 ‘8, ‘8x °6; lob 1—*125; ¢ 3; f'* ‘8x12; bractew lob *8x°55; br 65x ‘55; per 1:05 x ‘9, auricule °35 x °5; caps *35™™. Elata, pallide viridis, albescens, raro rufescens, procumbens stratificata. Caules e caucdice repente fere liberi, arcte plumeeformi-pinnati et sub- bipinnati, ramis alternis, frondem 2-3 pollices longam, } poll. latam, ambitu lanceolatam, efformantes. Folia late imbricata subplana, tenuia, pellucido-punctata, patula, semi- cordato-ovata v. ovato-oblonga rotundata, basi antica caulem late transeuntia, postica sinuato-lobulata; lobulus minutus foliis 10-plo brevior ovoideus convolutus, sinu decurvus itaque quasi corni- formis, apice (occulto) acuto acuminulatove; cellule minutule sub- pellucide leptodermes, subeequilatere, inferivres subelongate. Inter cellulas normales interpositee sunt alice duplo majores —pellucide, annulo chlorophylli opaco in ambitu—ad ocellorum instar, cellulis normalibus 4 v. pluribus dissite, per totum folium sequaliter sparse. Eodem modo foliola, bracteze perianthiaque ocellata sunt. Foliola imbricata foliis eequimagna sed transversa, dimidio latiora quam longa, cordato-reniformia, apice lato recurva. Flores dioici: 9 quasi-laterales, in ramo primario secundariove brevis- simo terminales, innovatione simplice pro more brevi (foliis sub 5- jugis) suffulti. Folia rami ? infrafloralia minuta unijuga orbiculata. Bractez foliis multo minores complicate; interna (innovationi adnata) bipartita; lobis obovatis rotundatis, inferiore duplo breviore angus- tioreque, externa duplo minor obcordata, paulo ultra } emarginata, lobis subeequalibus semiobovatis. - Srrcro-LEJEUNEA. ; 83 Perianthia foliis rameis submajora caulinis vix «quimagna urniformia valde compressa, apice profunde obcordato-biloba, rostello perbrevi in sinu, lobis in auriculas spatulato-rotundas reniformesve, planas sed non alatas, albo-marginatas dilatatis, postice carina parum ele- vata percursa. Calyptra pyriformis tenuis, cellulis unistratis con- flata, ad perianthii sinum attingens, demumn inequaliter trifida. Capsula globosa (emersa mihi non visa). _ Piante ¢ cum @ mixtie, paulo tenuiores magisque ramos. Amenta ramulum totum, v. rami primarii.apicem tenentia. Bractez sub 10- jugee, foliis duplo minores, julaceo-subimbricatze, eymbiformi-com- plicatee, obtuse, ad } fissee, equilobe, antheridia bina foventes. Adest bracteola obovata duabus bracteis infimis adscripta, bractez autem superiores bracteolis omnino carent. Obs. Folia ad 4-4 lat. imbricata, tenuia et quasi vitrea, subopaca tamen, apice albido-scariosa. Rami seepe tam conferti ut folia ramorum vicinorum contigua vy. subimbricata fiunt. Caules tenaces rufescentes subcompresso- teretes, cellulas sub 12 in sectionis diametro monstrantes; cellule sub- conformes elongatie, corticales coloratee opacee magis chlorophyllosex, interiores pellucide. The normal arrangement of the 2 flowers is as follows:—From the outer base of the lowest leaf in the interval between two consecutive branches on the same side of the stem springs a 9 branch, abbreviated to a single pair of minute leaves and their accompanying foliole—all of which are suborbicular and entire—below the involucre. Adnate to the inner and larger bract, and diverging at a small angle from the axis of the 9 flower, grows out a slender innovation, bearing usually only 5 pairs of ‘small leaves, but sometimes more elongate. The form above-described, which 1 consider the perfect state of the plant, is the var. y Neesii of G. L. et N. in Syn. Hep. Their var. & is the following :— Var. macrior (= « Willdenoviana et «* ocellulata Syn. Hep.) differt a typo statura minore; caule minus regulariter pinnato; ramis sepe plurimis consecutivis abbreviatis floriferisque; foliis etc. minoribus, caulinis fere elobulatis, lobulo rameorum magis distincto, in situ corniformi, arte explanato quadrato-rotundo.—Hab. prope Pard et act fl. Negro superiorem. 2. Sticto-LEJEUNEA KunzEANA, Gottsche. Tas. III. L, squamata W. 8B Kunzeana G. in Syn. Hep. 322. Hab. in M. Chimborazo radicibus occidentalibus, e ramis pendula, alt. 1000m.—In Peruvia et Chili legit. cl. Pépric. #13x°8; lob 15; cA; f*% 8x1:1-12; per 15x1-2™™. AS. L. squamata, valde affini, diversa videtur caracteribus sequentibus. Elatior, 6-9 pollicaris, e pallide viridi fulva. Caules, e caudice repente subdiviso, a matrice liberi, nigri, in planum ramosi, bipinnati, ramis ramulisque dissitis frondem laxam nec plumeformem efformantes. Folia parum (ad }-3 lat. solum) imbricata, oblonga (nec ovata) basi antica alte semicordata; lobulus convolutus lageniformis, deflexus, cauli contiguus parallelusque (ad Frullanie replicate instar). [Lobulus L. squamate decurvus est, sed a linea horizontali parum divergit 84 Sricto-LEJEUNEA. cornuque simulat.] Cellule multo majores, ocelli tamen minus con- spicui nec tam symmetrice disposita ac L. squamate. Foliola fere conveniunt, lateribus tamen incurva, [nee apice recurva ut in L. squamata]. Perianthia longiora sunt, auriculis valde dilatatis pulchre albo-marginatis, contigiis vel etiam paulo imbricantibus. Obs. The branches and branchlets are several pairs of leaves apart, which leaves room for from 2 to 4 fertile ramuli between two consecutive branches; whereas in L. sguamata more than one is never seen. ‘The ? flowers are found on the primary branches more frequently than on the- stem, but in L. sqwamata are wholly confined to the latter. Suscenus Il.—NEHURO-LEJEUNEA, BS. A Sticto-Lejeunea differt statura humilore foliis foliolisque minoribus ; caule flexuoso minus regulariter pinnato; foliis divergentibus, e cellulis axialibus magnis pellucidis moniliatis, falsinerviis (nee tota superficie punctatis, sicut in Sticto-Lejeunea), lobulo sat conspicuo recto; foliolis minoribus late cuneatis; floribus 9 in ramo longiore terminalibus (dichotomialibus); bracteis foliis submajoribus, fere conformibus ; peri- anthiis cuneatis obcordato-bilobis (auriculis oblongis complanatis anguste alatis), valde compressis, facie antica planis, postica bicarinatis, carinis subalatis. Sticto-Lejeunea folia habet tota superficie punctata, flores 9 quasi- laterales (cladogenos), bracteas minutas, alteram earum equilobam, peri- anthium postice obtuse unicarinatum, margine carinisque exalatum ; itaque pro subgenere distincto habendam censeo, Hab. In arborum truncis vetustis, perseepe muscis filicibusque irre- pentes. Distr. Species hujusce subgeneris adhue cognite habitant: 1. L. catenu- lata Nees, in America septentrionali, super Hymenophyllum ciliatwm et Neckeram abietinam, Hook.; 2. L. Breuteliz, Gottsche, in Antillis; 3. L. seminervis, Spruce, ad fl. Negro in Brasilia boreali. 1. NEURO-LEJEUNEA SEMINERVIS, Spruce. Hab. In sylvis fl. Negro superioris ad truncos vetustos; prope S. Gabriel et S. Carlos frequens. F 55 x 35; lob 15; ¢ Ay; ff 25x °25, 25 x 3; br ‘65% 455 br'* 55x45; per *9 x 65, 1-2 « ‘gum, Plante latissime effusee intricate, rufo-badia, lurid v. olivaceo-nigres- centes. Caules 14-pollicares procumbentes flexuosi confertim pinnati y. bipinnati, ramis invequilongis sepe brevibus, fertilibus pro more dichotomis. Folia arcte imbricata, angulo recto v. majore divergentia, decurva, falcata, oblique (vy. semi-) ovato-oblonga rotundata integerrima, a basi ad 4 long. usque cellulis magnis uniseriatis vittata, vitta angulum sub 70° cum caule efformante, basin versus sinuato-lobulata ; lobulus folio 3-4-plo breyior oyalis inflatus, margine incurvo, apice in dentem Nevuro-LEJEUNEA. 85 linearem acutum involuto producto; cellule minute subsequilaterse guttulate, subchlorophyllose, limitibus sat validis, trigonis nullis, inferiores submajores oblongo-hexagon, vittee cellule ceteris col- lateralibus 23-plo majores ovales pellucide. Foliola contigua v. imbricatula, foliis duplo et ultra breviora, rotundo- cuneata plana, lobulos vix perfecte obvelantia. Flores dioici: 2 in innovationum dichotomia terminales—innovationibus raro solitariis, vix unquam proliferis. Bracteze foliis submajores, eadem fere forma, lobulo tamen explanato parvo ligulato diagonali ; bracteola subquadrata, angulis rotundatis, v. obovata. Perianthia alte emersa, seepe maxima, foliis plus duplo longiora com- pressa, obcordato-cuneata, apice profundissime emarginata v. potius biloba, lobis auriculisve rectis, late oblongis rotundatis complanatis rudimentarie alatis, obsolete rostellata, postice bicarimata, carinis humilibus interrupte subalatis conniventibus et in perianthii smum apicalem confluentibus. Plantz ¢ cum 2 mixtée, tenuiores, magis ramos. Amenta v. ramulo cauligeno constantia v. rami apice (rarius medio) posita; bracteze 4-6-jugee majuscule subrotund subeequaliter complicato-bilobe, L. catenulata, Nees. (Syn. Hep. 323) folia habet apice eroso-denticulata ; foliola minora (“foliis triplo saltem minora”); innovationes semper uni- laterales ; perianthia duplo minora (“ lin. vix longiora”), tam lata quam 1 ; ) 1 onga. Obs. At S. Carlos Lej. seminervis encircles trees of 1 to 2 feet in dia- meter from the ground up to a great height, so that they look as if wrapped in dingy brown cloth. Susaenus II].—PELTO-LEJEUNEA, 8. Omphalo-Lejeunee certe peraflinis, tenuior tamen, fere capillacea, tenerior, colore pallido. Rami (seepe suboppositi) magis dissitiflori. Folia dissita, caule valde convolutiva, oblique ovata pro more acuta; lobu- lus eo Omphalo-Lejeuneze haud absimilis, plicee angulo tamen acu- tiore; cellule 4 minores, papuloso-prominule, trigonis nullis. Foliola, qualia O. Lejeune, cauli semiadnata, longiora tamen, anguste ovalia, planioraque. Florescentia utriusque sexus fere eadem ac Omphalo-L. Bractezee 2 foliis duplo breviores acuminate apice denticulate; bracteola apice bifida. Perianthia alte acute 5-gona longirostria— Ultimo caractere, pree aliis, ab O. Lejewnea distinguenda. Habitu Taxi-Lejewnee Pyramidanthe satis accedit, caules autem ceespitoso- penduli; folia firmiora, cellulis subduplo minoribus subopacis papu- losis; foliola perfecte integra dimidio infero cauli adnata; florescentia dioica, et perianthia valida alte 5-carinata, caracteres subgenericos amplos suppetunt. Hab. In montibus sylvaticis e ramulis pendula. . Distr. In Andibus Quitensibus (Chimborazo et Guayrapata) etiam in Columbianis (Merida), alt. 1200-3000 m., unica species mihi cognita rarius occurrit. 86 PELTO-LEJEUNEA. 1. PeLto-LEJEUNEA OVALIS, L. et G. Syn. Hep. 754. Hab. Ex arborum ramulis pendula,in montibus Andium SSLGIA NDE. SS Chimborazo et Guayrapata, alt. 1200-3000 m. F10x°6, lob 3; f"%8x5; cab; Or. lob 5; per 1:1x°6, 1°25 x -gmm, Ciespites densi pallidi penduli. Caules 3-6-pollicares filiformes debiles pinnati parum radicellosi; rami breves distantes, alterni v. suboppo- siti, seepe floribus 9 innovando-secundis quasi-pinnulati. Folia vix imbricata primum erecto-patula dein decurvo-convolutiva, basi longissima sublongitudinali inserta (7.e. antice preelonge decurrentia), semicordato- -ovata, acutata vel leniter acuminata acuta (in var. obtu- sata), e cellulis prominulis tuberculata margineque repandula; lobulus 3-plo brevior subrhombeus trapezoideusve anguste saceatus, plica angulum 30°-40° cum caule efformante, recta parum convexa, superne planiuseulus y. apice subacuto plus minus involuto; cellule minu- tule, firmes, subzequilateree, incrassatee, trigonis antem nullis, solum centro pellucidee, ambitu chlorophyllo opacze, inferiores sensim elon- catee flexuosze, omnes fere extus convexo-prominule. Foliola foliis fere equimagna subcontigua elliptica dimidio inferiore cauli adnata, basi utrinque rotundata, vel hine semicordata illine rotundata, plana v. lateribus recurva. Flores dioici. Rami 9 1-2-, v. 8- (raro 4-) flores paulo dissiti, revera ter- minales, ex innovationibus brevibus apice floriferis—rarissime ex parte dichotomis—ad speciem laterales, seriatimque secundi. Bracteze erectee appressee foliis caulinis duplo minores, ovato-lanceolate subacuminatze apicem versus erosulze denticulatzeve, lobulo perangusto adnato nullove; bracteola oblonga.v. obovato-lanceolata apice brevi- ter bifida, segmentis acutis obtusisve. Perianthia foliis subequilonga pyriformia—vel a basi brevi obconica obovata—apice obtusato longirostria, alie acuteque 5-gona, opaca, firma. Pl. ¢ simpliciores. Andreecia spiculis pallidis cauligenis, rectis vel sub- circinatis, f. canlinum subsuperantibus, constantia; bracteze foliis 4-5-plo minores 3-5-jugie, raro plures, laxiuscule equitantes, saccatee y. potius galeiformes, ore emarginate v. integra, antheridia bina magna brevi-pedicellata foventia; bracteolee ovales vix decurrentes. Var. obtusata.—In M. Guayrapata; etiam in Chimborazo, sed rara. iP Tb x-6b: 0b 763 f' 7 Tilo x 6s ropa, : Forma major fuscidula, caulibus seepe subsimplicibus. Folia longiora obtusata—raro etiam rotundata—lobulo majore. Foliola elongata ovali-lingueeformia. Suzaenus LV.—OMPHALO-LEJEUNLEA. arias, Ldng. et Nees, Syn. Hep. 308, pro parte; Phragmicoma, Mont. Cent. I1.; Lejewnea, Mont. in @’Orbigny Voy. Plante elatze flaccidee flexuiose, prostratee penduleeve, flavescentes, parum ramos, ramis seepe suboppositis, caule apice elongato vermiculari, OMPHALO-LEJEUNEA. 87 Folia subconterta erecto-patula valde decurvo-concava—interdum caule subconvolutiva, suborbiculata integerrima; lobulus majusculus sub- rhombeus caule incurrens subsaccatus, apice brevi incurvo; cellule parvulx plans pachydermes, trigonis maximis, centro pellucidee. Foliola foliis eequimagna orbiculata, “paulo latiora quam longa, dimidio inferiore cauli adnata, valde recurvo-concava. Flores dioici: ? ad ramos breves innovatos seriatim secundi, seepeve soli- tarii. Bractese foliis minores, lobulo parvo obsoletove; bracteola foliolis subangustior, emarginata. Perianthia paulo emersa, pyriformi-cylindrica, inflata ecarinata—juniora tamen obscure trigona—apice rotundato depresso demum 3—pluri- fida, laciniis inflexis. Andrecia spicam brevem cauligenam sistentia; bractece 6-juge, raro plures, parve, ultra medium bifidee subsequilobe. Hab. In saxis arborumque ramulis. Distr, Hujus subgeneris unica species cognita Americana est, per tropicos novi mundi late distributa, nullibi vulgaris; montes humiliores diligit, supra 2000™. vix ascendit, in planitiem rarissime descendit. 1. OmpHaLo-LEJEUNEA FILIFORMIS (Sw. Prodr. p. 144, sub Jung.) Omphalanthus filiformis, N. et O. geminiflorus N. Hab. In saxis arborumque ramulis Andium Orientalium tam Peruvian- orum quam AZquatoriensium (M. Campana, Fl. Pastasa super, &c.) vix ad 2000 m. alt. usque; in planitie rara (caput fl. PROTO): Orel dab “25 5 ¢ gs 5 f'* 10173, 9x105; br. lob 8x6; br "6 xD “per 13x 6, "75 x 6; amenta g 10-—1:'7™. Plante age Sokal hen pallid vy. flavidee, opacie, prostrate pendu- leve seepe in stratum densum protensz, in sicco interdum rufo- badize; caules flexuosi flaccidi parum ramosi, raro pinnati, ramis pro more brevibus alternis v. per paria approximatis. Folia late imbricata erecto-patula, basi media (ad plicam) acute decur- rentia—plica angulum x icordato- orbiculata vel-oblongo-rotunda, ex apice et margine postico valde decurvis cochleato-concava, a basi ad } subrecte complicata; lobulus eaule incurrens ovato-rhombeus subsaccatus, margine transverso in- flexo, raro plano,-medio unidentato (dente lobuli apicem sistente); cellule parvule subconformes, guttulate pachydermes, trigonis maximis, centro pellucide, chlorophyllo in annulum sinuosum con- gesto, fere planissimze, minute asperule. Foliola late imbricata, foliis eequimagna, oblato-orbiculata, e margine late recurvo convexa, ‘dimidio inferiore cauli adnata, facie interna, supra hilum rhiziniferum externum, profunde foveolata, rhizinis validis fasciatis. Fl. dioici: Q ad ramos perbreves, seepe oppositos, innovandos, seriatim secundi, 2 v. 3, v. haud raro solitarii. Bracteze foliis minores, dimidio inferiore complicatze, lobo obovato rotundato, lobulo angusto lineari-rhomboideo vy. obsoleto; bracteola longe brevior obovata orbiculatave, e margine infero recurvo spathulata, apice retusa v. triangulari- emarginata. Perianthia foliis breviora longiorave inflata, fere teretia parum compressa sordide rufa, opaca, strato cellulularam tamen unico constantia 88 OMPHALO- LEJEUNEFA. obscurissime trigona, pyriformia, vel a basi obconica subcylindrica, apice rotundato. depresso, centro minute perforata, demum 3-pluri- fida, Jaciniis inflexis. Calyptra paulo brevior pyriformis, apice sub- regulariter 4-fida. Amenta ¢ in planta propria cauligena, crebra, globosa, oblonga v. spicata; bracteze 2-10-jugee foliis 2- plo et ultra minores, subconferte basi turgidissimee, profunde bifidee, lobis subeequalibus ovato-triangulari- bus obtusis. Inter Omphalanthum Jjiliformem, Sw. et O. gemini- florum, M. et N., nullum discrimen invenio. Flores 2 ad ramum brevissimum 1—2-vel 3-ni in una et eadem stirpe; ex innovationibus oppositis interdum dichotomiales. Suscenus V.—ARCHLLEJEUNEA, Spruce. Plantie sat elatee speciosse rufescentes, raro subluride viridesve, in sicco tam forma quam colore parum mutate, ramicole et corticola, czas- pites v. plagulas dilatatas sistentes, raro aliis hepaticis muscisque consociate. Caudex longe repens, caules pro more assurgentes, v. ultra matricem (seepe fruticis ramulum) patulos stratificatosque v. pendulos, vage—rara subpinnatim—ramosos, ramis plerumque paucis inequilongis, in pl. 9 iteratim innovando-elongatis, raro dichotomis, subarhizos proferens. Folia magna (‘75-2°25"™)—in unica specie (clypeata) parvula—imbricata, subrotunda v. sepissime oblonga sublingueformia, valde obtusa Seas , nunquam acuta, integerrima ; lobulus majusculus (=folii 44) subrhomboideus, acutus, apiculatus, ‘bidentulusve, margine (raro fotus) planus integerrimus, ad carinam subinflatus, neque vero sac- catus; cellule parvule mediocresve, raro majuscule, subconformes, leptodermes, v. pariete ad angulos subincrassato, pellucide, solum ambitu opacee. Foliola foliis subeequilata, breviora tamen, orbiculata v. reniformia, basi exciso-amplexantia v. cordata, integerrima, haustoria scopeformia rarissiine proferentia. Flores dioici, in paucis monoici: 9 in ramo iteratim innovando-prolifero terminales, rarissime (in speciebus paucis monoicis) e caulis apice dichotomo, florescentiam magnam, 9 vel ¢, in furca gerente, ad brachia monotrope innovanda seriatim secundi. Bractev foliis parum diversee, integerrime ; bracteola integra v. aliarum sp. breviter bifida. Perianthia emersa pyriformia pellucida, ex apice rotundato retusove (nunquam obcordato) rostellata subcompressa 4 (—5)-quetra—raris- sime antice posticeque 2-3-carinulata—carinis raro levissimis, plerumque ala rudimentaria interrupte limbatis v. saltem exas- peratis—nunquam tamen denticulatis ciliatisve. Andreecia rami apicem mediumve tenentia; bractese pro more plurijuge foliis paulo minores subineequilobe, diandree. [ Brachio-Lejeunca ab Archi-Lejeunea differt: ramificatione in plantis fertilibus tota fere dichotoma, in sterilibus seepe laxe pinnata; foliis sepe acutis, lobuli saccatt margine ‘transverso cren ulato ; folrolis seepe insigniter decurrentibus; florescentva normali paroica et cautoic a; bracteis denticulatis ; : perianthiis vi aro subse squaliter 4—5-gonis seepius 7-10- ~plicatis, carinis plicisve omnibus sublevissimis. | ARCHI-LEJEUNEA. 89 Hab. In arborum cortice ramisque. Species humiliores interdum ad arbores pomiferas ; majores in sylvis, priecipue fl. Negro humilioribus, valde copiosze, in plagas prelatas horizontales ad fruticum ramulos diffusze, e colore rufo necnon statura elatiore insignes, raro aliis Lejeuneis commixte. A. L. Lepriewrit semper riparia palustrisve, interdum arborum ramis irrigatis adnata et ex p. fluitans. Distr. Per Americam tropicam ab insulis Antillis ad Peruviam austra- lem usque ; preprimis in sylva Amazonica (ubi 9 species legi) abundat. In Andibus humilioribus, vix supra 600™ ascendens, provenit A. L. florentissima, S.; alteras duas species, L. porelloides, 8. et L. crispisti- pula, §., alt. 1000™, semel vidi. Ex America septentrionali unicam speciem (L. clypeata, Schwein.) habemus. Alize paucie species adveniunt in insulis Antillis et Brasilia, quarum 2 (vel plures) etiam in Africa australi habitant. Singula species Asiatica etiam in Brasilia et Peruvia lecta est. Potissimam subgeneris expansionem in America australi esse ex his plane patet. § 1. MonorRoPELLA: ramis 2 monotrope tnnovandis ; florescentia (in L, Lepriewrti excepta) dioica ; perianthii carinis pro more scabris. A. Dioice, rufescentes. F. basi semicordata. a. Bracteola distincte bifida. 1. A. L. porelloides. Elata. F. maxima elongata lingueformia recte complicata. Foliola suborbiculata. Br. foliis subbreviores ; bracteola elliptica ad 4 bifida. Per. vix emersa longe 4gono-obpyraimidata, facie antica 1-3 carinulata, postica 2 carinata, margine carinisque posticis angustissime alato-repanda. 2. A. L. unciloba. Pr. minor. F. late oblonga sinuato-complicata. Foliola oblata reniformi-orbiculata valde recurvo-cochleata, Br. foliis longi- ores; bracteola obovata breviter bifida. Per. emersa pyriformia 4-carinata, carinis levibus v. subasperis. 3. A. L. badia, F. semicordato-ovato-oblonga, lobulo magno. Foliola late cuneato-orbiculata. Br. foliis equilonge ; bracteola magna lanceolato-oblonga apice angusto brevissime bifida. Per. subim- mersa cuneato-pyriformia compressula postice alte bicarinata, margine carinisque rugulosis. aa. Bracteola wpice lato rotundata emarginatave. 4. A. L. recurvans. F. laxe imbricata oblonga, margine antico late re- curvo, subrecte complicata, lobulo magno (=f. 4) inflato. Foliola suborbiculata recurvo-cochleata, Bracteola obovata subacute emargi- nata. Per. emersa pyriformi-oblonga compressula 5-carinata, carinis asperulis. 5. A. L. crispistipula, F. late imbricata ovato-elliptica subplana profunde sinuato-complicata, lobulo plus duplo breviore subplano. Foliola reniformia margine sinuato-crispa. Bracteola ligulato-oblonga obtuse subemarginata. Per. alte emersa pyriformia compressa, postice 3- carinata, antice 1-3-carinulata, subleevissima. 6. A. L. rufa. F. confertissima semicordato-orbiculata, obliqua et oblata, lobulo 3-plo breviore subplano. Foliola majuscula reniformia fere duplo latiora quam longa, apice valde recurva. Bracteola prelate cuneata rotundato-truntata. Per. subemersa cuneata compressula acute 4-carinata (facie antica carinulata), carinis obsolete tuberculosis.. TRANS. BOT. SOC. EDIN. VOL. XV. M 90) ARCHI-LEJEUNEA. Bb. Monoice, pallida lurideve. F. bast haud semicordata. 7. A. L. Lepricurti. Elata lurido-viridis F. subcontigua falcato- oblonga, lobulo 5-plo breviore subplano, Foliola oblato-orbiculata. Br. foliis minores; bracteola obovato-oblonga rotundata. Per. alte emersa pyriformia, apice depressa, subcompressa 5-carinata, carinis seabris. + A. L. clypeata. Pusilla albido-viridis. F. subimbricata semiovata celluloso-crenulata, lobulo 3-plo breviore subplano. Foliola quadrato- rotunda. Br. foliis majores; bracteola rectangulari-oblonga retusula: Per. late obovata rotundata, antice leviter 1-, postice alte 2-3-carinata, carinis scabris. [America bor. ]. § 2. DIBRACHIELLA: ramis 2 pro more apice primum ditropis (brachiatis) dein monotrope*innovandis; floribus monotcis; perianthiv carinis levisst- mMUs, 8. A. L. florentissiina. Foliorum lobulus lobo plus 2-plo brevior. Foliola lobulis «equilonga subrotunda. Per. pyritormia longirostria. 9. A. L. Criigeri. ¥. Jobulus lobo 5-plo brevior. — Foliola foliis 3-4-plo minora subreniformia. Per. brevirostria. 1. ARcHI-LEJEUNEA PORELLOIDES, Spruce. Hab. In sylvis tl Negro et Uaupes, preecipue in sylvis humilioribus “caatingas” dictis, ad fruticum ramulos; frequens in San Carlos vicinia. In Andibus Peruviz, alt. circiter 1000™, rara. F295 x 125; lob °75x°5; ¢ sys [7 13x13, 10x 1-25; br 20ebr 270x105 per 2:0X 0:8™™. Elatarufo-badia. Caudex in matrice seepe longissime repéns, pedalis, caules 2-6-pollicares liberos assurgentes pendulosve—vel perseepe horizon- taliter patulos—substratificatos, vage vel subpinnatim ramosos, ramis ineequilongis interdum iteratim innovando-proliferis, proferens. Folia maxima confertim imbricata, horizontalia vel decurvo-secunda, plana, siccando fere immutata, e basi semicordata oblique elongato- ovato-oblonga, sublingueformia, rotundata obtusatave, margine antico plano, postico supra medium apiceque recurvo basin versus incurvo; lobulus 3-plo brevior ovato-rhomboideus acutus applanatus (nec inflatus); cellule mediocres vel majuscule, versus mediam basin ampliores, lobuli tamen minutule ceteris 2-3-plo minores, omnes subsequilaterie, pariete subincrassato, facie interna subrotunde, minute sinuatee autem, granis chlorophyll paucis. Foliola tenera subplana late imbricata, foliis equilata subduplo breviora, lobulos tegentia, orbiculata—in formis minoribus sepe basi subquad- rata subcuneatave—apice rotunda retusulave, margine recurvula, a basi ad medium fere usque impresso-canaliculata. Flores dioici; 9 in ramo innovando-monotropo—rarissime dichotomo-— terminales. Bractez foliis caulinis subbreviores lobo ligulato obtu- sato, lobulo paulo breviore dimidio fere angustiore subappresso tri- angulari-lanceolato vel late subulato; bracteola aquilonga elliptica vel elliptico-lanceolata ad 4 anguste bifida, segmentis subobtusis, acutis vel raro subacuminatis, seepe tortellis—Folola infrafloralia 2 vel 3 pro more emarginata. Perianthia bracteis subeequilonga, raro longiora, pyriformia (potius longe tetragono-obpyramidata), 24-plo longiora quam lata, subcompressi, ex apice retuso brevirostria, facie antica apicem versus humiliter 1- ARCHI-LEJEUNEA. 9] (raro 3-) carinulata, postice alte bicarinata, carinis marginalibus posticisque angustissime alatis repandisque vel subtuberculatis. Andreecia in planta tenuiore magisque ramosd, terminalia vel medium ramum tenentia, julacea; bracteze sub 10-jugie foliis consecutive sed duplo minores, inflate, parum inequilobe, diandree. Var. longiflora, Spruce, minor, magis compacta, sepius subdichotoma. Folia breviora. Foliola fere duplo minora cuneato-orbiculata. Peri- anthia pro ratione majora emersa obovato-oblonga vel obpyramidata, angulis repando-cristulatis, facie antica superne 3-carinulata ; alia magis elongata, fere lineari-oblonga, carina anticé singula, pentagono- prismatica.—Ad fl. Negro, juxta S. Gabriel et S. Carlos. Var. andina, Spruce, perianthiis haud raro postice asymmetrice 1-carinatis, sc. vel altera carina obsolet& vel carinis 2 posticis approximatis in unam latam dorso subplanam quasi confluentibus.—In M. Campana et Guayrapurina, corticola. 2. ArcuiI-LEJEUNEA UNCILOBA, Lindenb. Syn. Hep. 331. Hab. In arborum vetustarum cortice, raro in ramulis, secus flum. Amazonum (Pard, Santarem, Obidos, etc.); necnon per totum fl. Negro (S. Gabriel, S. Carlos, etc.). Eandem speciem habuerunt cl. auctores “Syn. Hep.” e Brasilia, Peruvia et Mexico (necnon e C. Bonz Spei ?). F'1-0x0°8, 1:05 x °75; lob 35x °3, 3x -25; ¢ Jy; fi 6x9, 6x "75, woawos.un 2b: per 1:5 x 1-0, 1:5 x 75 Procerula depresso-ceespitosa substratificata flavida vel rufo-badia. Caudex in cortice longe repens, caules subliberos 1—-2-pollicares vage ramosos —interdum decompositos—flaccidos proferens. Folia confertim imbricata planiuscula vel seepius decurvo-concava, solum basi antica recurvula, late semicordato-oblonga, rotundata, subabrupte sinuato-complicata ; lobulus triplo brevior ovali-rhombeus acutus apiculatusve appressus fere planissimus; cellule parvulee subcon- formes pellucide, pariete ad angulos precipue incrassato, intus plus minus distincte plurisinuate, chlorophyllo in annulum congesto. Foliola imbricata, 4 folium superantia, dimidio latiora quam longa, lobu- los totos obvelantia, oblato-orbiculata reniformiave, basi excavato- amplexantia, e margine toto recurvo cochleata. Flores dioici: 2 terminales, cum innovatione (raro prolifera). Bracteze folia excedentes, ad 3 usque bifida, lobo oblongo rotundato, lobulo seepe v1x breviore, angustiore tamen, acuto vel acuminulato; bracteola obovata breviter acute bifida. Perianthia foliis dimidio longiora, pyriformia, rostellata, compressa, antice depressa apicemque versus interdum 1-carinulata, postice bicarinata, carinis levissimis vel obsolete tuberculosis, raro magis asperis, demum apice 3-4-fida; cellule superiores pulchre guttulate, longitudinaliter seriatze, quasi moniliate. Calyptra totum perianthium replens, pyriformis, apice subzequaliter 4-fida, valvula quart& ceeteris sublatiore (valvulis 2 connatis constante). Andreecia in ramis basilaria, media, apicaliave, spicata; bracteze foliis sensim minores 6-20-jugie; antheridia bina magna, altero longius stipitato. Plantula in terris Amazonicis late dispersa, sat variabilis, Forma 92 ARCHI-LEJEUNEA. grandiolia adest juxta Obidos et ad fl. Caipuraé, lobulo margine supero rotundato, apice in supremis foliis apiculato-acuto, in inferioribus autem solum abrupte acuto vel etiam rotundato.—Altera forma, e fl. Uaupes, foliola hic majora lobulos obvelantia, illic per intervalla minora lobulorum apices haud attingentia, habet. Ad Manaos fl. Negro advenit forma pusilla, lobulis seepe diminutis, foliolis magnitudine variis; altera ad Para, in Mastigobryo repens, elongata, foliolis minoribus, lobulos raro obtegentibus.—Forme insigniores sunt : Var. intermedia, floribunda. Lobulus dimidium folium fere zequans foliolis parvulis raro obvelatus, acutus nec apiculatus. Perianthia postice distincte bicarinata, carinis approximatis inferne ol)tusis—quasi in unicam latam confluentibus—solum apicem versus magis argutis; margine plus minus scaberula, interdum grosse subserrata.—Cuript, prope Pard, in cortice. Var. unicarinata. Lobulus parvus, folio 4-5-plo brevior, acutus. Peri- anthia magis compressa, apice rotundata vel obcordata, carinis posticis parum prominulis sepissime in unicam obtusam coalitis, margine sub- leevissima.—Pard, in cortice. 3. ARCHI-LEJEUNEA BADIA, Spruce. Hab. Ad ramulos foliaque viva in “ caatingas” fluvii Uaupes. F 155 x10, 18x 1:05; lob 55°35, °7x ‘5s ¢ aes fl -7 K-75, “8x15; br. lob 18x “7-8; br'® 20x 1-05; per 1°95 x 1-05™™, Elatiuscula, badia. Caules 1-14-pollicares, e caudice longe repente, ultra matricem horizontaliter patuli, ramosi, substratificati, ramis confertis iteratim proliferis monotropis. Folia dense (ultra $ lat.) imbricata, semicordato-ovato-oblonga, sublingue- formia, apice decurvo obtusata—raro subacuta rotundatave, margine antico late recurva, postico subrecte complicata ; lobulus magnus = folii 2, vel (raro) dimidium fere folium equans, planiusculus, semi- ovato-rhomboideus apiculato-acutus, minime foliolo proximo obve- latus sed ultra ejus orbem longe protensus; cellule subparvule pellucids subconformes, pariete ad angulos et media latera insigniter incrassato. Foliola dimidio folio subeequilonga late cuneato-orbiculata-reniformiave recurvo-convexa, ad basin profunde foveolata—nec longe canaliculata qualia in affinibus, Flores dioici: 9 terminales, innovatione prolifera suffulti. Bracteze foliis equilonge, erectee, ad # vel fere ad basin usque complicato-bitide, lobis lanceolatis acutis, superiore plus minus acuminulato, inferiore paulo breviore duplo angustiore longe tenui-acuminato; bracteola imo longior, perianthium subsuperans, lanceolato-oblonga, apice angusto incurvulo brevissime (ad 4) acute bifida, segmentis acuminu- latis. Perianthia subimmersa, cuneato-pyriformia, compressula retusa subrostel- lata, antice depressa obscure carinulata, postice alte bicarinata (carinis subapproximatis), angulis omnibus rugulosis. Archi-L. recurvans, §., priori e foliorum margine antico recurvo aftinis, tenerior, colore clariore, est; differt etiam foliis laxe imbricatis, lobulo majore, cellulis submajoribus; sed preecipue bracteola multo minore apice Jato solum emarginato, et perianthio emerso. From the base of the fold, which is the lowest point of the leaf, the ARCHI-LEJEUNEA. 93 base (or insertion) of the lobe and lobule is along two nearly contiguous lines parallel to the axis of the stem, on whose surface they ascend to nearly an equal height, the lobe very slightly higher than the lobule. 4, ArcHI-LEJEUNEA RECURVANS, Spruce. Hab. Per fl. Negro totum ad arbuscularum ramulos foliaque, praecipue in sylvis “caatingas” circa S. Gabriel et S. Carlos. Fi4x°-9; lob -7x°4); cy; f'* 6x7; br. lob 15x75 br'* 12x65 per I Gpaccp a. Pallide rufa. Caudices longe repentes caules subramosos szepe prolifero- innovatos horizontaliter ultra matricem patulos stratificatosque pro- ferentes. Folia laxe imbricata, patula, sicca subtortilia nec autem decurvo-secunda nec convolutiva, tenuia pellucida, semicordato-oblonga ovatove-ob- longa, obtusa vel rotundata, a basi ad medium usque complicata, biloba, margine ad lobuli apicem vix (vel non) subsinuata, margine antico toto late recurva; lobulus magnus = folii $, ovato-rhomboideus, inflatus, et vel totus involutus vel ad plicam ventricosus margine tamen subplanus, apice longiusculo acutus vel seepissime incurvo-apiculatus ; cellule mediocres subsquilatere pellucide, margine lato subopaco cincta, fere vacuee, inferiores sensim multo majores pellucidioresque. Foliola lobos vix dimidios velantia, foliis duplo et ultra breviora, sub- contigua, rarius subimbricata, reniformi-orbiculata (sed e margine toto recurvo subrotunda videntur) perpaulo latiora quam longa, basi excavato-amplexantia minime autem cordata. Flores dioici: 9 terminales, innovatione (seepe monotropo-innovando- prolifera) suffulti. Bractes foliis perpaulo longiores profunde com- plicato-bilobze, lobo oblique ovali acuto obtusove, lobulo 3-plo minore lanceolato subacuminato; bracteola obovata emarginata, sinu apici- busque subacutis, margine repando. Perianthia emersa, pyriformi-oblonga retusula brevi-rostellata, compres- sula, antice depressa—raro apicem versus carinulata—postice acute bicarinata, carinis omnibus subalato-asperulis = pellucida, cellulis vix elongatis conflata. A L. uneiloba Lindenb. certe distincta, preecipue foliis longioribus laxioribus pellucidioribus, margine supero recurvo-subsquarrosis, siccando subsquarrosis subtortilibus, lobulo duplo fere majore inflato; bracteola solum emarginata; demum perianthii carinis semper exasperatis. 5. ARCHI-LEJEUNEA CRISPISTIPULA, Spruce. In arborum vetustarum cortice secus fluvios Negro et Uaupés, locis Vana- uaca, S. Gabriel, Panuré, &e.; in M. Campana Andium Peruviano- rum. F 8x6; lob -3x‘13; ¢ gy; f™ *4x°6; br. lob 115x°4; bre Ox*75 : pero xX ge™. Tenella rufula laxe czespitosa. Caules e caudice repente assurgentes parce et subfastigiatim ramosi, pollicares. Folia late imbricata ovato-elliptica rotundata subplana, basi antica dila- tata vix semicordata, integerrima subrepanda, paulo intra medium profunde abrupte sinuato-complicata, plica recta; lobulus $ folium vix equans, subplanus lineari-rhomboideus v. fere rectangularis, mar- gine interno cauli parallelo, apice acuto apiculatove; cellule parvule 94 ARCHI-LEJEUNEA. eequilatero-hexagone, inferiores sensim submajores, marginalesminores quadrate. Foliola subimbricata, foliis 2-plo breviora, Jobulos haud perfecte obte- gentia, reniformia, basi excavato-amplexantia, margine pulchre sin- uato-crispa. Flores dioici: 9 terminales, innovatione semel prolifera suffulti. Bracteze foliis dimidio longiores, ad % bilobze, lobis ligulato-oblongis obtusis rotundatisve, postico subduplo minore; bracteola obovato-oblonga retusa v. obtuse emarginata, margine subcrispula. Perianthia foliis caulinis fere duplo longiora pyriformia subrostellata compressa, postice 3-carinulata, antice humilius 1-3-carinulata, carinis marginibusque sublevissimis. Planta ¢ illi L. uncilobe sat similis, minor tamen, tenerior, magis con- cinna. Androecia spiceeformia, in summo (raro medio) ramo posita, elongata; bracteze 8-12-jugée, equitantes ventricosée fere ad medium usque bilobee, lobis obtusatis, postico paulo angustiore. Sectio perianthii junioris supra medium facta, monstrat 3 carinas posticas subapproximatas, carinula inter has et marginales utrinque inter- posita; in facie antica carinulam unicam vel sepius 3 minus distinctas ; ex quibus, carinis marginalibus altioribus adjectis, perianthium 8-10- carinatum plicatumve evadit. 6. ArcH1-LEJEUNEA RUFA, Spruce. Hab, Ad fl. Amazonum prope Santarem et Obidos, in cortice vivo. F'-9x1°0; lob 3x25; ¢ po-zy; f'* 55x10; br 1:25; br’ 1-25x1-2; per ico xegun Mediocris rufescens effusa. Caules repentes, in plagule margine elongati, distanter breviter ramosi, czeterl pollicares apice assurgentes parce ramosi, unifariam innovati. Folia confertissima subdeeurva valde oblique semicordato-orbiculata, latiora quam longa, antice caulem late transeuntia, postice sinuato- complicata; lobulus=folii 4 (ramorum=f.2) rhomboideus subplanus acuminulatus; cellule parve equilateree subpellucide inferiores submajores. ; Foliola imbricata reniformia, fere duplo latiora quam longa, margine supero valde recurva. a Flores dioici: 9 terminales, innovatione spe prolifera suffulti ; folia sub- floralia sensim majora, foliolisque rotundioribus; bracteze proprize foliis caulinis fere dimidio longiores obovato-oblongée obtusee, lobulo subbreviore acuto; bracteola eequilonga prelate cuneata, angulis rotundatis, integra. Perianthia subemergentia f. caulino 4 longiora cuneata, apice rotundato- truncato-subretusove tenui-rostellata, postice alte bicarinata, antice l-carinulata, margine carinisque obsolete tuberculosis.— Perianthia sectione trapezoidea, facie antica medio elevata (carinulata), posticd fere equilata planissima, angulis omnibus peracutis. unciloba differt foliis densissimis, latioribus quam longis; foliolis - 4d. : ee te hy ao prelate reniformibus; bracteola apice truncato integra (nec bifida) ; demum perianthio breviore magis cuneato quam pyriformi. 7. ArcHI-LEJEUNEA LEepRIEURI, Mont. ? In G. L. et N. Syn. Hep. 319; A. L. potamophila, Spruce, Mst. (1854). ARCHI-LEJEUNEA. 95 Hab. In arborum radicibus ramisque inundatis, ad fluminis Amazonum tributarios boreales, fl. Negro et Casiquiari preecipue, frequens. Planta revera riparia, imo interdum subfluitans. In sylvis palustri- bus Guian Gallic invenit LEPRIEUR. 7a 55 lob 152; cD: f@ 3x35; br 6; br 63 per 12x 7mm. Elata sordide viridis, lurida seepeque limo obruta, prostrata parum strati- ficata. Caules 2—4-pollicares, ramificatione crebra sed irregular, raro pinnata vel subbipinnata. Folia parum imbricata vel solum contigua, apice dissita, subplana, mar- gine supero incurva, falcato-oblonga rotundata (forma fere eorum Omalie trichomanoidis), recte complicata; lobulus 5-plo brevior—in- terdum minutus, linearis subplanus, basi supra caulem incurrens, sinu in lobum sensim abiens ; cellule parvulz subconformes leptodermes, chlorophyllo copioso in annulum congesto subopace, medio pel- lucidee. Foliola dissita, foliis 2-plo minora, oblato-orbiculata-obovatave. Flores monoici: 9 in ramo spe brevi terminales, innovatione simplice proliferave suffulti. Bracteze foliis minores, lobo anguste obovato rotundato, lobulo duplo breviore rhomboideo acuto, vel minore et oblique triangulari; bracteola obovato-oblonga rotundata integra. Perianthia foliis duplo fere longiora, turbinata pyriformiave, apice depresso rostellata, subcompressa, 5-carinata—rarissime postice 3-cari- nata, antice leviter 2-carinulata, carinis omnibus subalatis asperulis- que. Calyptra perianthium fere implens, ovalis, apice inzequaliter 3-valvis, infra medium incrassata cellulis 2-3-stratis constans. Pedi- cellus obscure noduloso-constrictus haud geniculatus. Capsula globosa; elateres preelongi valvulas fere aquantes. Andrecia polyphylla, medium ramum spe tenentia; bracteze foliis con- secutive, paulo breviores, subinzequaliter complicate, concave, apice bilobe. Obs. Cum L. Leprieurii, Mont. descriptione 1. c. haud exacte convenit —quoad staturam nostratis majorem et folia falcata praecipne—eandem speciem tamen censeo.—Forsan etiam eadem est L. parviflora, Nees, a cl. Martio ad flumen Amazonum lecta, cui tamen adscripta sunt folia ovato- oblonga, lobulo minuto triangulari subnullove; ceeterum nostra minime “parviflora” est, quum perianthia longitudinem 11™™, attingunt. L. clypeata, Schwein. (Virginia, Sullivant M. Allegh. no. 262) nostrz aflinis, differt statura pusilla; colore albido-viridi; foliis minoribus semi- ovatis obscure subfalcatis; foliolis longioribus quam latis; bracteis g paucijugis. Specimina L. Lepriewrit pulcherrima, ramis foliisque Randie Ruizir ex parte adnata, ex parte libera et in aquis fluitantia, ad fluv. Casiqui- ari legi; alia in ipsa terra inundata vigebant. Itaque in schedis meis hance speciem primum appellavi Lejeuwnea potamophila, Mst. 8, ARCHI-LEJEUNEA FLORENTISSIMA, Spruce. Hab. Ad fruticum ramos, in planitie Amazonica rarior (Caripi prope Parad); in Andium radicibus, precipue secus rivulos, magis frequens (Tarapoto, etc.); etiam ad fl. Ventanas prope Guayaquil, in Theo- bromate). 96 ARCHI-LEJEUNEA. F 10x °75, ‘9x °65; lob’4x°4;¢ 35; br 75; br'* 6x°4; per 10x°6; cal pat Pusilla virescens, siccando flavida raro rufula. Caules e candice repente suberecti 1-14 pollices longi parce (raro symmetrice) bipinnati, ramique primarii iteratim innovando-proliferi, monotropi—raro primum dichotomi, florescentia maxima, ¢ vel @, in axilla, brachiis monotropis. Folia subimbricata subplana, oblique oblonga ovatove-oblonga, szepe fal- cata, obtusata rotundatave, medium versus sinuato-complicata ; lobulus 4 folium fere eequans ovalis, in situ tam convoluto-inflatus ut fere linearis videatur, apice incurvo-bidentatus, dente supero lon- giore subulato, vel (in var.) muticus; cellule parvule pellucide, pariete ad angulos incrassato, chlorophyllo parco, inferiores sensim muinores. . Foliola foliis plus duplo breviora dissita subrotunda, interdum retusula, plus minus recurva vel etiam squarrosa. Flores monoici: Q creberrimi ad ramos innovando-proliferos terminales, quasi seriatim secundi. Bracteee foliis subbreviores ligulato-oblongee obtuse, lobulo longe minore plano apice sublingulato, interdum ad dentem oblique triangularem acutum redacto ; bracteola ovalis apice repandula. Perianthia foliis subequilonga, pyriformia subcompressa longe rostellata alte 5-carinata, carinis levissimis vel rarissime rudimentarie alatis, antica humiliore, demum apice 4-fida, valvulis cuspidatis. Calyptra paulo brevior pyriformis, brevistipitata, tenuis (solum ipsa basi cellulis bistratis conflata), demum apice equaliter trivalvis, longistyla. Pedicellus paulo exsertus, siccando obscure noduloso-constrictus haud geniculatus. Capsula globosa albida profunde 4-fida, valvis recurvis ; elateres pauci longiusculi prope valvularum apicem, juxta margines preecipue, inserti. Andreecia vel terminalia vel ad caulem inferiorem lateralia, longispica julacea; bracteze plurijugze foliis caulinis sensim subminores, laxius- cule complicato-turgide, breviter bifidee, lobo superiore paulo majore. Var. «. monotropa, caule apice simplice—rarissime furcato—flore 9 magno terminal, ceeteris floribus 2 ad ramos innovando-monotropos, fl. ¢ in jisdem ramis terminalibus ; foliorum lobulo apice bidentato—raro unidentato muticove.—Perianthia ad ramorum innovationes interdum tam numerosa quam foliorum juga, seepe autem dimidio solum numero sunt.*.—Tarapoto, ad frutices secus rivulos ; Caripi, prope Para, ad arbores pomiferas.— Var. f. calliandra, caule elatiore, apice furcato-cymoso, spica mascula maxima erecta in furca; foliis magis falcatis, lobulo apice in folium transeunte sine ullo dente terminali; perianthiis elongatis tenui- pyriformibus.—Prope Guayaquil, ad fluvios Ventanas et Daule, in cortice. * Capsula hujus var. in notulis meis sic descripta est. Valvule } capsule semicircumiferentie sequantes, lanceolate recurvule. Cellule strati exterioris tesselate, subrhombee, parietibus valvule marginibus subparallelis (nisi mar- ginales minores subquadrate) ad angulos columnis validis fulcitis, membrana secundaria valde sinuosa; cellule interiores subequimagne crebre papillose, papillis plurimis brevibus, aliis autem in pilum fere elongatis. Elateres pauci, subapicales, valvulis subequilongi, angusti, apice in annulum obtuse quad- ratum dilatati, helice simplice pertenui arctiuscule contorta. Spore magne tuberculose, ARCHI-LEJEUNEA. 97 Obs. The Para plant is the same as that from eastern Peru, and differs from that of Guayaquil, at the western foot of the Andes, in the leaf- lobule having an incurved tooth at the apex, and mostly an adjacent smaller tooth on the upper margin; and in the terminal (or axial) flower on the main stem being usually 2, while the end of each branch bears a short ¢ spike, beyond the two, three, or more 9 flowers that are set along the branch. But many plants of both forms are purely female, without any male spike. Montagne’s figure of his L. Aubertana in Sagra’s History of Cuba, t. xix. f, 3, is not unlike our plant, but the leaves are said to be subrotund. 9, ARCHI-LEJEUNEA Crucert, Lindenb. In G. L. et N. Syn. Hep. 319. Hab. Pard, in cortice (R. 8. 1849). In insula Trinidad invenit CRUGER. Pe 7oax55, lob “15,0 3; f* 2x3, 25°35; br 6; br'* “6x 353. per ai tec Mediocris, rufescens ; caules pollicares, parum ramosi, Folia contigua vel subimbricata, late patula fere divergentia, oblique oblonga rotundata, basi antica subdilatata obscure semicordata, postica subsinuato-complicata ; lobulus 5-plo brevior semiovato-rhombeus inflatus, sinu brevi, apice subobtuso plerumque incurvo occultoque ; cellule subzequilateree pellucidee, annulo opaco cinctze, mediz 3™™. Foliola 3-4-plo minora orbiculato-reniformia subsquarrose patentia. Fl. monoici: 2 in ramo homotropo-innovando terminales ; bractez foliis minores ovales subacute fere ad basin usque bifid, lobulo parvo lineari v. sublanceolato; bracteola anguste oblonga retusula. Perianthia alte emersa foliis subdimidio longiora, pyriformi-oblonga, duplo et ultra longiora quam lata, apice rotundato brevi-rostellata, antice earinulata, postice alte bicarinata, subleevissima. Andreecia caulem ramosve terminantia seepe longispica; bracteze majus- cule (foliis caulinis sensim minores) complicate, basi ventricose, apice breviter bilobz, lobis obtusatis subineequalibus. L. florentissima habet lobulum dimidium fere folium zequantem ; foliola duplo fere majora, tam longa quam lata, &c. Suspeenus VL—P7TYCHO-LEJEUNEA. Plante ramicole erectze penduleve virides, siccando seepe pulchre flavee. Caules 3—4-pollicares, caudice brevi repente orti, laxe pinnati—raro ex parte dichotomi—laxifolii, arhizi; rami semel pluriesve innovati, 1—pluriflori, fceminei, innovatione apicali tamen sepissime mascula; flagella nulla. Folia subplana, siccando fere immutata, elongata, acuta apiceque seepissime serrulata spinulosave, raro integerrima, parvilobulata ; cellule medi- ocres parvuleve leptodermes chlorophyllosz zquilateree oblongeve. Foliola foliis duplo breviora quadrato-rotunda subreniformiave, apice truncato retusove spinuloso v. integerrimo, Flores monoici: Q ad speciem in ramis laterales—revera in innova- tionibus successivis terminales—raro dichotomiales. Bractez foliis minores angustiores, lobulo sublongiore, serrulats rarissime integer- rime, bracteola integra v. breviter bifida. TRANS. BOT. SOC. EDIN. VOL. XV. N 98 PrycHo-LEJEUNEA. Perianthia emersa oblonga obsolete rostellata compressula, 7—10-plicata, plicis obtusis (primum, ut videtur trigona): in speciebus orientalibus omnibus zqualiter symmetriceque 8- v. 10-plicata. Amenta ¢ longispica, bracteis majusculis. Hab. et Distr. Unicam speciem americanam cognitam prope Guayaquil ad Theobrome truncos legi; ceeteree 6-vel plures insulis Malayanis, rarius Indiz peninsula, incolee. Ptychanthus, Nees, Hep. Eur. III. p. 211; Syn. Hep. 289. Mastigo-Lejeunea, 3 Thysano-Lejeunea, differt caule firmiore valde denst- folio, raro equaliter pinnato, aliis ramis decurvis flagellaribus ; foliis e margine late incurvo faleatis, siccundo caule cireumvolutis ; cellulis minu- tulis insigniter incrassutis; foliolis plus minus cuneatis, apice lato lunu- latim exciso spinulosis ; fl. 9 juxta caulis ramorumque apicem innovantem confertis ; bracters foliis majoribus serratis spinosisve ; perianthis triquetro- prismaticis, carinis ala serrulata laciniatave auctis.—Unica species Ameri- cana, M. L. plicata Spruce, perianthiis 6-8-plicatis ad Ptycho-L. accedit ; ceteris caracteribus autem recedit: se. ramificatione vaga, aliis ramis flagellaribus; foliis subfalcatis valde obtusis; dioicis; bracteis integer- rimis. Ptycho-Lejeunea Theobrome. Autoica et paroica, elata dichotoma; rami spicis ¢ pinnulati. F. semicordato-ovata subobtusa, superiora subapiculata, lobulo minutissimo. Foliola duplo breviora sub- cordato-rotundo-quadrata, subtruncata, fere integerrima. Bracteze fl. 2 foliis plus duplo breviores, lobis acutis, raro apice 2-3-dentatis, inferiore longe minore. Per. oblonga obtuse 7—9-plicata. + Ptycho-Lejeunea suleata (Ptychanthus sulcatus Nees). _Robusta pinnata ; rami vel simplices (seepeque apice masculi) vel dichotomi, flore ? sterili in furea, altero flore plerumque fertili ad quemque ramulum (ultra florem recte innovando-continuum). FF. semicordato-ovato- oblonga ex subrotundo apice apiculato-acuta repandula integerrima, lobulo 4-5-plo breviore apice cum lobo acuminato-conflnente. F's duplo breviora orbiculari-reniformia, apice recurvulo subretusa re- pandulave. Br. ultra $ complicato-bilobe acute, lobulo lineari- rhomboideo. Per. a basi conicé rectangulari-oblonga, subcompressa, 10-plicata.—J ava. + Ptycho-Lejeunea Javanica (Ptychanthus Javanicus Nees). Robusta pin- nata; rami seepe decurvi, in sicco subcircinati. F. semicordato- ovato-oblonga sensim acuminata acuta, apicem versus dentato-ser- rulata-spinulosave, toto margine leniter incurvo, lobulo minuto subinfllato, FI! vix duplo minora subquadrato-orbiculata, basi sub- cordata, apice rotundo-truncato toto crebre spinuloso. Br. foliis subeontormes, duplo fere breviores. Per. oblongo-turbinata, alte 10-carinulata.—Java, Sumatra, &e. F19x1:1, lob -25, ¢ do; f'@ "L:0'x 1°05. 67, 115s per lds bes Var. Moluccensis (= Ptychanthus Molucccensis Lac.) F. magis abrupte subacuminata; minus arvute dentata, margine postico toto involuto (lobulo obsoleto) antico plano,.—Celebes, &c. Var. intermedia (Ptychanthus intermedius G.). F. solum acuta sub- serrulata, lobulata (idem ac in typo). F'!* haud diversa, nisi pro apice solum denticulato.— Java, Prycuo-LEJEUNEA. J9 t+ Ptycho-Lejeunea semirepanda(Phragmicomasemirepanda Nees). Robusta, ex p. dichotoma. F. suboblique semicordato-oblonga, acuta acuminu- latave, superne dentata subspinosave (ramorum raro integerrima), lobulo 5-plo minore subovato inflato. F' recurva, obovato-orbiculata, apice rotundato-truncato repanda vel denticulata. Flores Q dicho- tomiales; br. foliis sublongiores, acute, superne dentato-serratze, lobo semiobovato, lobulo duplo breviore lineari. Per. obovato-oblonga compressa 8-plicata.—Java. 1. PrycHo-LEJEUNEA THEOBROMA&, Spruce. Hab. ad fluvium Ventanas prope Guayaquil, in Theobrome ramis. F18xX1°3, 2°0X 1-2 (ramea), lob 2, ¢ dg 5 f° x7; br lob 14°75 per 16x73 br gf -6™™, Elata pallide viridis. Caules 3--4-pollicares suberecti iteratim dichotomi, ex parte spicis masculis pinnulati, steriles tamen laxe pinnati. Folia subimbricata semicordato-ovata, basin versus latiora, superne sensim angustata, apice decurvo subobtusa, abrupte acuta vel superiora subapiculata, integerrima vel terminalia apice angulata, margine postico subincurva basique minutissime complicata, plica angusta folio 10-plo fere breviore; cellule parvulee paulo elongate, omnes fere subconformes, Folia caulina breviora latioraque, ramea longiora. Foliola dissita, vel superiora contigua, foliis 25-plo breviora, rotundo- quadrata, basi subcordata, apice lato subtruncato repandula, a basi ad medium late sulcata. Flores monoici: 9 cymosi, nempe flore majore in caulis apice furcato terminali, floribus 1-3 utrinque ad innovationes oppositas (brachiatas) seriatim secundis. Bracteze foliis plus duplo breviores, ad basin fere bilobee, lobis lingueeformi-lanceolatis plus minus acutis, raro apice 2-3-dentatis, inferiore longe minore angustioreque; bracteola ovata late emarginata vel breviter bifida, vel apice inzequaliter 3-dentata, complicata recurva. Perianthia emersa viridia oblonga, sectione obtuse trigona, facie antica biplicata, lateralibus uni-biplicatis (unde perianthia 7-9-plicata evadunt) laevissima vix rostellata. Capsula globosa. Andreecia vel ramulis cauligenis constantia, longispica, vel ramos foemineos terminantia; bracteze 10-plurijugze foliis triplo breviores equitantes complicato-bilobz, parum inflate, lobulo postico angus- tiore. Ramuli interdum solum ex parte masculi; foliis inferioribus superioribusve caulinis conformibus. Raro flos foemineus cum suo perianthio ramulum masculum terminat (florescentia paroica !). L. florentissime §. subaftinis, triplo elatior est; folia foliolaque duplo majora, illa plerumque acuta, lobulo fere obsoleto, haee subquadrata basique subcordata; perianthia (pro foliorum ratione) longe minora, oblonga (nec obovata,) pluriplicata. Andreecia nunquam in caule terminalia speciosaque (ac in L. florentissima) videntur. Cum Ptychanthis veris orientalibus habitu, ramificatione laxe pinnata textura, etc. bene convenit; a plerisque differt foliis foliolisque integer- rimis (dum in Pt, Javanica; Moluccensi, etc. superne argute dentata sunt), quo caractere tamen Pt. sulcatus N. (e Java) equaliter gaudet. Distinguenda hee ultima foliis ex rotundo apice integris: foliolis lati- 100 PrycuHo-LEJEUNEA. oribus quam longis; bracteolis apice integris; periauthiis equaliter 10- plicatis. Flores Q Ptychanthi Javanict (zeque ace Pt. Moluccensis, intermediique, que mere prioris varietates videntur) in ramo brevi terminales, inno- vatione simplice mascula suffulti; P#. sudcate autem in ramo primum furcato, dein alternatim innovando positi sunt, eodem fere modo ac in nostra Ptycho-Lejeunea Theobrome. Suscenus VII. MASTIGO-LEJEUNEA, 8. Phragmicoma Syn. Hep. p.p.; Thysananthus N. Syn. Hep. Elatiuscula, late depresso-czespitosa, apice virescens, inferne fulva fusces- censve. Caudex longe repens denudatus subramosus, seepe multi- caulis. Caules 1-3-pollicares validi assurgentes parum ramosi, vel subregulariter pinnati; alii rami apice florentes, innovando-prolongati; alit (pauci) flagellares parvifolit decurvt radicantes. Folia mediocria (0°9-1'7™™ longa) conferta, humida distiche pectinatim patula, sicca pro more decurvo-convoluta, plus minus lingueeformia, apice triangulari subacuta obtusave—raro rotundata vel apiculata, e margine toto postico (apice excepto) late incurvo subfalcata, seepeque ad speciem ligulata; lobulus 3-4-plo brevior, lineari-rectangularis rhomboideusve subinflatus, margine plano integerrimo, apice acuto bidentellove; cellule plerumque parvee minutuleeve pariete Incrassato utriculo sepe constricto, subopace pellucideve, inferiores majores magisque elongate. Foliola foliis paulo (raro duplo) breviora, plerumque sublongiora quam lata, cuneata—basi angusta, apice dilatata—retusa vel late emarginata, integerrima vel apicem versus subdenticulata. Flores monoici vel dioici: 2 in eaule ramove, apice iteratim monotrope innovato, terminales, ad speciem seriatim secundi, conferti—inter- dum creberrimi—rarissime dichotomiales. Bractez foliis subeequales, acutiores, integerrime vel serrulatie, lobulo in aliis obcordato-bifidulo; bracteola angustior, emarginata vel breviter bifida. Perianthia sepius emersa, prismatico-triquetra, pyriformia obovatave, raro linearia, apice obtuse truncato rostellata, carinis vel nudis vel plus minus alatis, ala in paucis latiuscula et laciniata vel ciliata, in unica duplicata; rarissime, plicis ad latera interpositis, 7-10-pli- cata-carinatave. Calyptra perianthio sat brevior rufa firmiuscula, clavato-pyriformis, ab apice ultra medium in valvulas 3, quarum duas sublatiores ovales, tertiam lanceolatam, dehiscens. Capsula subglobosa ultra dimidium quadrivalvis; valvule pallide rufz re- curvulz facie interna papillosa et ab apice ad } longit. elateribus tenuibus unispiris, apice dilatato-truncatis, sparse obsite. Pedicellus perianthio parum longior, ex ejusdem carina postica apice hiante ex- trusus, pallidus crassus, cellulis majusculis cylindricis collateralibus 21-seriatis (5 in diametro, axialibus uniseriatis) conflatus, siccando ad cellularum apices nodoso prominulus, ad internodos constrictus, quasi-articulatus, non autem geniculatus. Obs, This subgenus divides naturally into two sections, viz. :— lL. ‘LriGono-LiseuNEA (= Phragmicome pays, “Syn. Hep.”). 2. Trysano-Lusnunna (= Vhysananthus Lindenb. et “Syn. Hep.”) MAstiGo-LEJEUNEA. 101 These agree in habit; in the almost constant-presence of flagella ; in the closely-set leaves, which are lingulate or ligulate—or at least appear so from a wide incurvation of their postical margin ; in the cuneate, retuso-truncate or emarginate underleaves ; in the repeatedly innovant 9 stems or branches, and in the trigonous perianth. But in Thysano-Lejeunea the leaves and underleaves are often. finely denti- culate or spinulose, and the triquetrous perianths spinose at the winged edges; whereas in Trigono-Lejeunea, leaves, underleaves and perianths are quite entire. These are the only tangible differences, except a slightly closer texture in Thysano-Lejeunea, and they can scarcely be regarded as more than sectional. If, however, for the sake of retaining the name Thysananthus, which has already been applied by Lindenberg to one of these groups, we prefer to regard each group sub-generic, then our first section will stand as Mastigo-Lejeunea proper. Mastico-LesEUNEA normalis. (sive T'rigono-Lejewned), Hab. In arborum cortice, raro in saxis; planitiem diligit, neque in montes nisi humiliores ascendit. Distr. Tres species in regione Amazonica et Subandina degunt, qua- rum una, M. L. awriculata (Wils.) in planitie solum ad fl. Amazonum ripas observavi; in Andium Peruvie radicibus paulo frequentior est ; per orbem terrarum autem in terris tropicis et subtropicis late distributa est, primum in America boreali extratropica a cl. DRUMMOND inventa ; ex Indiz orientalis diversis locis, sub nom. Phragmicome. versicoloris Lehm. et Lg., lectam habemus. Ceeteras duas species ad fl. Negro et Orinoco legi, Alize paucee species in regione paleotropica crescunt, e9., Phragmicoma humilis Gottsche et Phragm. ligulate. Kurz. A. Perianthia triquetra, faciebus levibus vel raro carinuld und alterdve percursis. 1. M. L. auriculata, Monoica. Caules parce innovando-floriferi. — F. abrupte acuta obtusave. Br. lobo subacuto, lobulo sepius rotundato. Per. emersa pyriformia tenuirostria. [M. L. humilis (G.) Dioica? Caules subpinnati, ramis seepe dichotomis. F. obtusata raro abrupte subacuta. Br. lobulo retuso subobeordatove. Per. emersa obovato-oblonga, alte triquetra vel (carinula postico- laterali adject&) asymmetrice 4-carinata.—Java.—A M. L. wuriculata wore separanda. | 2. M. L. innovans. Monoica. Caules creberrime innovandi, fl. 2 con- fertissimis. F. apice semicirculari rotundata. Br. lobo rotundato, lobulo obeordato. Per immersa obcordato-obovata triquetra, faciebus leevibus. [|M. L. ligulata (N.; L. et Ldng.) Dioica, Caules inferne pirnati, superne 102 MastiGo-LEJEUNEA. bis terve dichotomi, floribus 2 in dichotomiis necnon ad brachia monotrope innovanda. F. ligulata obtusa vel ‘abrupte subacutas lobo sepe subapiculato. Br. lobulo in apicem lanceolatum longe protracto. Per, tricarinata, levia, facie antica unisulea.—Pulo Penang. Banca.) B. Per obscurius trigona, carinulis utraque facie adjectis 7-10-plicata. 3. M. L. plicatiflora. Dioica. F. oblongo-lingueformia subfalcata ob- tusissima. Br, lobis angustis obtusis. 1. Mastico-LEJEUNEA AURICULATA, Wils., in Drummond’s Mosses of S.S8., No. 170. Phragmicoma versicolor, L. et L. Syn. Hep. 297. Hab. In sylva Amazonica, prope Santarem et Obidos, super cortices, etiam prope Pard et in Andibus Peruvianis ad alt. 800™ usque. F 1:05 x ‘8, °9x°7, lob °3, ¢ gs—ps 3 f* 6x ‘5, “75x 65 ; br. 10; br'* 8x 76s perdb x <75™™. Late laxiuscule ceespitosa, inferne olivacea fuscave, surculorum apice tamen semper ascendentes, basin versus denudati et subfastigiatim ramosi, ramique superne prolifero-elongati. Adsunt etiam stolones pauci flagelliformes parvifolii apice decurvo radicantes. Folia dense imbricata, ad Bazzaniz instar distiche deflexa, suboblique semicordato-ovata (e margine infero toto incurvo subtalcata) apice triangulari subobtusa v. abrupte acuta, complicato-biloba, ad lobuli sinum spe crispata; lobulus 3-plo brevior linearis v. dimidiato- ovatus, apice brevi acuto sepius obliquo, involutus v. fere explan- atus; cellule superiores minutule, inferiores sensim majores, omnes subrhombeee incrassatee subopace. Foliola foliis dimidio breviora late cuneato-oblonga, retusula, tota longi- tudine insigniter canaliculata. Flores monoici: Q@ secus ramorum apicem seriatim secundi—revera in ramo iteratim innovando-prolifero terminales. Bracteze foliis sub- wequales, lobo ovali subacuto recurvulo, lobulo 2-plo breviore rhom- boideo rotundato rarissime emarginato; bracteola obovato-oblonga emarginata carinata. Perianthia folia plus minus superantia pyriformia triquetra tenui-rostel- lata, carinis leevissimis—rarissime ale fragmentis asperulis—postica interdum duplicata. Calyptra obovata tenuis, perianthio satminor. Capsula globosa subdepressa,—Perianthia aliquando utraque facie varinulé und alterave aucta, de modo ut ad L. plicatifloram accedit species. Andreecia in rami primarii medio apiceve posita; bractew pro more pluri- juge laxiuscule. Specimina Drummondiana archetypa (Mosses of 8. 8. 170) a nostris laud discrepant nisi statura paulo minore et perianthiis brevioribus ultra bracteas vix emersis. L. 248 hb. (Santarem) eadem est, in hac tamen lobulus margine supero vepe angulato-2—3-crenulatus invenitur. Var. virens (Mastigo-L. virens, Mst, hb. L. 502). In Andibus Peruvi- anis humilioribus sat frequens, vix supra 800™ alt. ascendens, locis Tara- poto, Tavalosos, Mt. Guayrapurina, etc.; necnon in palme trunco ad fluvium Guama prope Pard.—Forma insignis, vix pro specie propria habenda, differt a typo; statura majore; foliis margine supero magis MASTIGO-LEJEUNEA. 103 incurvo-appressis, lobulo bidentulo; foliolis oblatis reniformibus; bracte- arum lobulo subrotundo emarginato; perianthii carinis fere constanter alatis—ala 2-5 cellulas lata.—Folia inferiora plerumque rotundata, supe- riora apice triangulari obtusata rarius abrupte subacuta; lobulus sepe semiovalis, utrinque sensim angustata, sinu preelato obliquo, plica ultra lobulum verum transeunte. Foliola seepe late obcordato-cuneata—vel fere obcordato-reniformia, alis late recurvis. Inter formas hujusce speciei probabiliter enumeranda est Phragmicoma teretiuscula, L. et G., Syn. Hep. 745 (Gottsche, Mex. Leverm. 175) que vix differt nisi foliis sublongioribus. Phr. iuliformis Nees Syn. Hep. 298, plane valde aftinis est, si non eadem. Phragmicoma repleta, Tayl.! Mst. (Madras: Wight in hb. Hook.—speci- mina ab ipso Lindenbergio ad Phr. versicolorem L. et G. redacta) eadem certe videtur ac Phr. humilis, Gotts.! (Java: hb. Lindberg). Heee autem vix differt a Lejeunea auriculata nisi statura minore, lobulo foliorum in- curvo-apiculato, perianthiisque preealte triquetris. In omnibus formis, jam supra memoratis, caules vidimus ad ramos novellos pulchre virides, basin versus plus minus fuscescentes. 2. Mastico-LEJEUNEA INNOVANS, SPRUCE. Hab. Ad arborum truncos propre Panuré fl. Uaupes. #V25% 9; lob *5X°25; cs f* 75x75; br. lob 1°6 x -75, lobul 1-1 x°7; bria 1°3 X °6 3 per 1:25 x *75™™, Elatiuscula badia procumbens. Caules 2-pollicares implexi vage ramosi, ramique iteratim (ad 10ies) innovando-proliferi, innovationibus mono- (raro hetero-)tropis pauci-confertifoliis 2—3-floris ; alii rami apice attenuato decurvo radicantes. Folia densa, patula, concava siccando haud arcte (vel vix) convolutiva, falcata late semicordato-ovato-oblonga insigniter rotundata—apice semicirculari, basi subdecurrentia, margine postico late sinuato- incurva, complicato-biloba (plica ultra lobum protracta); lobulus folio 24-plo brevior, semiovato-rhomboideus-rectangularisve acutus, medio margine unidentatus, solum ad plicam inflatus, ceeterum planus appressus; cellulee minutule subrhombez, incrassate, pulchre pel- lucidze, inferiores sensim majores. Foliola imbricata, } folium superantia, late rotundo-cuneata-obovatave, retusula, repandula integerrima, a basi ultra medium canaliculata. Flores monoici: 2 creberrimi, seriatim secundi, terminales,—ex inno- vationibus quasi-laterales. Bracteze foliis majores recurvo-falcate, ad 2} bilobze; lobus oblique obovato-ovalis rotundatus incurvo- canaliculatus; lobulus fere eequilatus, dimidio brevior, subrotundus vy. late oblongus, subrevolutus, apice lato insigniter obcordato-emar- ginatus: bracteola obovato-lanceolata oblongave, duplo longior quam lata, retusula, marginibus plus minus revolutis. Perianthia subimmersa obovata triquetra, apice subobcordato brevissime rostellata, carinis valde compressis exalatis, raro obsolete alato- repandis. Capsula globosa 4-partita vix exserta. Amenta ¢ ramulis propriis constantia, folio caulino plus minus longiora, plerumque 2 v. 3 ad cujusque innovationis primariz basin fasciculata, polyphylla, julacea, decurva; bracteze parvee usque ad 20-jugee. The stems and branches sometimes mnovate as often as ten times, each 104 Mastico-LEJEUNEA. innovation diverging slightly from the direction of the one preceding. In reality the innovations are double that number—cor more—for each main innovation has 2 (rarely 3) perianths at the apex, So near as often to touch each other; yet each upper perianth terminates an additional innovation, so short that it has only a single pair of leaves below the tlower. The calyptra in this and other allied species is rufous, clavato-pyriform, of firmish substance, and splits for the emission of the capsule regularly into 3 valves, whereof two are broader and oval, the third lanceolate; they are all obtuse, and are separate to or below the middle of the calyp- tra. This plainly indicates that the calyptra originates in the union of a pair of leaves, with their intervening foliole, precisely as the perianth does. 3.- MAstigo-LEJEUNEA PLICATIFLORA, Spruce. Hab. In arborum cortice ramulisque, in sylvis fl. Negro humilioribus precipue (San Carlos) etiam ad fl. Orinoco cataractas (Maypures), rarius ad saxa prope Tarapoto Andium Peruvie. F 145x°85, 1:2x8, 1:0x°6; lob 3x°15; ¢ AA; f* 6x ‘65, “6x “75, 4x °45; br 1°55 br 1°-4x1°0; per 15x 9, 15x -75™™. Late prostrato-czespitosa, vix stratificata, rufo- vel fusco-badia, apice vire- scens. Caules, e caudice longe repente subdiviso, 2-3-pollicares tenuiusculi horizontales pendulive vage ramosi, ramis pro more brevibus sepe prolifero-elongatis, raro dichoto mis, interdum assur- gentibus, aliis deflexis, subaphy llis microphyllisve, radicantibus. Folia plus minus imbricata, angulo recto divergentia, subdeflexa, siccando convoluta raro patentia e marginis postici inflexione subfalcata, ob- longo-ovatove-lingueformia, obtusa rotundatave, subrecte compli- eato-biloba ; lobulus 4-plo brevior ovato-rhomboideus subacutus, ad plicam inflatus, ceterum planus appressus, margine interno (siniis) cauli parallelo; cellule parvulz subopacze subelongatee thombeo- hexagon pachydermes, subbasales medi laxiores pellucidioresque. Foliola subduplo breviora, imbricata, subrotunda, v. cuneato-rotunda, raro reniformia, apice reflexo retusa obcordatave, margine basi re- curva, a basi ad 4 alt. canaliculato-impressa. Flores dioici: Q terminales, raro e dichotomia, innovatione pleramque unilaterali prolifera suffulti, Bractes foliis longiores, ultra # bifidee, lobo oblongo-lanceolato-ligulatove obtuso, lobulo subconformi duplo breviore ; bracteola magna late oblonga retusa emarginatave. Perianthia vix emergentia, pyriformia ‘oblongave, rotundato-truneata obsolete rostellata subcompressa, utraque facie 2-3-carinata, carinis marginibusque sublevibus raro rudimentarie alato-rugosis. Andreecia medio caule ramove posita; bracteze plurijuge foliis consecu- tiva paulo breviores confertioresque, subsequaliter bilobz basi turgide, diandre. Perianthia normaliter apicem versus 10-plicata, plica tamen una alte- rave laterali aliquando obsoleta, 7—-9-plicata fiunt. E plica media postica ceteris subvalidiore, perianthium in sectione trigonum evadit; ex quo, - necnon e foliis linguzformibus opacis, lobulo rhomboideo margine plano appresso; foliolis retusis, basi brevi insertis (unde facile solutis) affini- tatem aliquam cum Thysano-Lejeunea patet, majorem autem cum Mastigo- Lejeunea, e.g. cum M. L. auriculata (Wils.). Ad S. C arlos del Rio N egro adest var. tenuissima, elongata, subdicho- Mastico-LEJEUNEA. 105 toma, foliis oblique ovalibus plerisque rotundatis, foliolis late emarginatis repandulis. Phragmicoma ligulata, Kurz! (in ins. Banca a Kurz lecta) valde affinis est, foliolaque fere exacte conformia. Folia autem duplo longiora quam lata, ligulata, interdum subacuta; bracteola angustior carinato-complicata eroso- repandula, Perianthia nondum vidi, sec. cl. Lindenberg autem tricarinata sunt, caeterum eplicata. Suspcenus VII.*—THYSANO-LEJEUNEA. Sive Mastigo-Lejeunea, § Thysano-Lejeunea = Thysananthus, Linden. Sp. Hep. = Bryopteris, Sp. Nees. Hab. Ad arborum humiliorum przecipue truncos ramosque in terris calidis eequinoctialibus. Instr. Th. L. amazonica, S., per totam planitiem Amazonicam fere tri- vialis, habitationum viciniam diligit, in montes nusquam ascendit, neque ad Andium pedem oceidentalem visa fuit. Th. L. dissoptera, Spruce (Thysananthus comosus, Syn. Hep. quoad stirpem Americanam) solum e Guiana anglica possidemus. Tertiam speciem, Th. L. ptero- bryoides, 8., haud sine dubio hue relatam, quum plantam masculam solum vidi, ad Andium pedem orientalem inven. Quarta species, e descriptione videretur, Lejeunea cognata, Nees, e Brasilia allata, mihi adhuc ignota.—In regionibus paleotropicis multo magis nume- rose videntur species, quarum ipse examinavi Thysananthus comosus, Lindenb.! (typus), Th. spathulistipus, Ldng., convolutus Ldng., reni- lobus, G.: omnes insulis Malayanis incolas ; alizeque paucz orientales enumerantur.—Tres species Novo- Zelandicas, a cel. Taylor ad Thy- sananthum adscriptas, e descriptionibus vix congeneres censerem. Obs. This group has few representatives in equatorial America, but one species, Th. L. amazonica, is perhaps more frequent than any other Lejewnea on the Amazon and its tributaries, where it occurs as a weed on old Cala- bash and other trees, planted near dwellings. I thought, at first it might be a form of Thysananthus comosus, Lindenb., but having now examined in Hooker’s herbarium the original specimens on which. “that species was founded, I find it quite distinct. Lindenberg’s “ species,” indeed, com- bines the characters of two distinct species—the one American, from Guiana, the other Asiatic, from Pulo Penang and New Guinea. A careful study of Hooker’s specimens has convinced me that the eastern plant, Th. L. comosa, Ldng. vera, is a different species from the western, which I call Th. L. dissoptera, n. sp. (See below, after Th. L. amazonica.) The eastern tropics would seem far richer in species of Thysano-Lejewnea than the western. All the oriental agree with the American species in habit and texture ; in the form and armature of the perianth ; the crowded leaves and flowers ; the very acute and usually toothed leaf-points ; and the cuneate emarginato-truncate under-leaves, usually toothed upwards. Th. L. spathulistipa differs from all the American species in having the 9 branches usually dichotomous. A. Caules elati, pro more laxe inequaliter pinnati. Folia foliolaque con- ferta, apice minute serrulata vel integerrima ; cellule subplane. TRANS. BOT. SOC. EDIN. VOL. XY. oO 106 THYSANO-LEJEUNEA. Thysano-Lejeunea amazonica—Monoica. F. ovato-lingueeformia, pun- genti-acuta subapiculatave. Foliola duplo breviora, late cuneato- obovata emarginato-truncata ; angulis subapiculatis, margine supero subserrato. Br. lobo acuminulato subserrato, lobulo ligulato acuto apice denticulato; bracteola superne serrulata, breviter. bifida, seg- mentis acuminulatis. Per. sublineari-prismatica, carinis apicem suba-. latis denticulatisque, 2. Th. L. dissoptera. Dioica? Fox 5; lob3; ¢3,; f* 6x35, 5x3; br “8x -4; br 65x ? 453 per 19x 1:2, 15 x 1-2, 12 x 10mm, Elata ceespitosa erecta pendulave rufu-badia-fulvave. Caules 2—4-polli- cares flaccidi pinnati, ramis distantibus superioribus iteratim dicho- tomis. Folia contigua vel subimbricata, a basi turgid plieaté suberecta patentia, semicordato-ovata, seepe fere dimidiata vel subtriangularia, apice valde decurvo (in siceo convoluto) argute 3-vel paucidentata; lobulus subtriplo brevior ovatus, convexo-siccatus, margine unidentato api- ceque triangulari incurvus ; cellule parvulee equilateree, pariete ad anculos (rarius etiam ad media latera) incrassato, utriculo perseepe collapso, pellucide. Foliola foliis vix duplo breviora, oblonga rotundata retusulave, decur- rentia, media basi dorso mammillé, interdum glutinosa, raro radi- cellas fasciculatas, proferente, preedita, alis recurvis. Flores monoici: 9 dichotomiales (primum terminales, innovationibus 140 DICRANO-LEJEUNEA. duabus valde rudimentariis suffulti). Bractez foliis subbreviores plane lanceolate, altera elobulata, altera lobulo dentiformi inflexo aucta, bracteolaque oblonga supra medium dentato-spinos-cilia- teeve. Perianthia foliis longiora, basi anguste cuneata plus minus elongata, dein obovata, apice obcordata medio mammillata, compressa, margine alata, ala supra medium laciniato-ciliata, sine ciliis 1-4 cell. lata ; ciliis utrinque 7-10, 4-8 cell. longis, inferne c. 2, superne 1, latis, varie hamatis; antice subplana, postice convexo-carinata (revera obtuse bicarinata, carinis approximatis superne conniventibus) api- ceque vel nudo vel cilio uno alterove auctis. Calyptra pyriformis tenuis. Capsula globosa. Antheridia in ramorum @ foliorum precipue superiorum axillis solitaria magna globosa longistipitata. Folia (s. bractez) czteris foliis caulinis haud diversa vel solum basi paulo magis ventricosa. In the lobules, and sometimes in the perianth, are occasionally found from 1 to 3 orbicular lens-shaped bodies the size of the antheridia but whitish and opaque. They have a minute marginal umbo, but no stalk. 2. DIcRANO-LEJEUNEA HYPOACANTHA, Spruce. Hab. In sylvis Andium Quitensium occidentalibus ad Pallatanga, alt. 2000 m.: ramicola. F 11x °8; lob 25; css; f* 5x35; br 10x ‘5; br'*10x'6; per 15x 1-0™™, (ciliis tnclusis). L. azillari affinis, differt colore virescente; foliis abrupte acutis obtusisve apicem versus (raro toto fere margine) inzequaliter serratis (dentibus 5-8), plica cum margine postico fere recte continua, lobulo angustiore integerrimo in lobum sensim transeunte; foliolis subminoribus; in- vationibus florum @ interdum solitariis nec oppositis; preecipue autem perianthiis basi brevissime angustatis, margine fere a basi longiciliatis, postice bicarinatis, carinis (vel saltem altera) ala inciso- ciliata auctis. Obs. The perianth furnished with two winged and ciliated keels at the back makes this plant seem, at first sight, very different from L. axillaris, whose perianth has only one broad and usually unarmed keel underneath; but in reality this one keel arises from the confluence, in mature and postmature perianths, of two obtuse keels, standing not very widely apart below and uniting above, a little below the apex of the perianth, where they are usually armed with a single spine or cilium; and (very rarely indeed) one of these keels will have two or three additional subapical spines.—The narrower and less saccate lobules may arise from the fact that hypogynous antheridia are much rarer in L. hypoacantha, although the inflorescence is the same as in L. avillaris. A form of the latter from Mt. Azuay, with normal perianths, has the leaf-lobule almost as in L. hypoacantha, but the marginal teeth are fewer, larger, and sharper. 3. DickRANO-LEJEUNEA CILIATIFLORA, Spruce. Hab. In monte Tunguragua, alt. 2400" super arborum ramulos. F1:4x°2, lob 3, ep; f@ °75 x 85; br 1:°25x ‘9; bra 11x11; per 21x 1°44™m, Badia, sat robusta; caules 1-2-pollicares, basi sola matrici adfixi, dein DICcRANO-LEJEUNFA. 141 liberi, patuli pendulive, distanter pinnati, ramis brevibus semel vel iteratim prolifero-dichotomis. Folia paulo (vix ad }) imbricata, subdivergentia, late suboblique semicor- dato-ovata, subtriangularia, apice decurvo apiculato-acuta ibidemque pauei-serrulata vel integerrima, supra basin posticam valde sinuato- complicata; lobulus 5-plo brevior, decurrens saccatus oblique com- presso-obconicus, margine transverso subplano sinum versus grosse bidenticulatus; cellulz subpellucidie, chlorophyllo in annulum con- gesto, subconformes, mediocres, folii apicem et marginem anticum versus minores, subbasales laxiores. Foliola imbricata dimidium folium parum excedentia, orbiculata, paulo latiora quam longa, alis a media basi (ubi radicelle affixee sunt) longé supra caulem decurrentibus, basi ipsa rotundatis cordatisve, mnargine supero recurvula. Flores monoici: 2 in dichotomia terminales; bracteze foliis subbreviores appressze, sese late imbricantes, ovales (fere symmetrice) acute su- perne plus minus serrulate subspinuloszeve [lobulo ad processum minutum subulatum, 4 cellulas longum 1-2-cell. latum, lobo basi intra marginem adnatum, redactu]; bracteola orbiculata subspathulata medio concaya alis plus minus recurvula, integerrima. Perianthia alté emersa, foliis canlinis multo longiora, obcordato-pyriformi- oblonga rostellata, antice profunde unisulca, postice alte obtuse 1- carinata, margine al&é supra medium (raro feré ab ipsa basi) crebre breviuscule ciliata cincta, carina postica levi. (Ala sine cilis 3 cell. lata; cilia 3-6 ¢. longa, basi 2 c. superne 1 c. lata). Flores autoici et paroici; andreecia vel in ramulo subflorali terminalia, vel infra bracteas floris 2 posita; bracteze ¢ paucijugze, foliis vix diverse, solum lobulo turgidiore. Antheridia solitaria magna. Pulchra species! a L. Cipaconea Gottsche (in N. Granata lecta) diversis- sima. L. Mexicana Lindenb. Syn. H. 325, subsimilis folia habet acumi- nata semper integerrima, et perianthia parum armata. 4, DIcRANO-LEJEUNEA CIRCINNATA, Spruce. Hab. Tunguragua, ad terram inter Ericeas, alt. 2500™. 1g Cespites elati densissimi, pallidi badiive, siccando fuscescentes; caules 3-6-pollicares, suberecti, flexuosi, arcte fastigiati, parce pinnati, ramis brevibus alternis dissitis, fertilibus furcatis. Folia tenuia tenera imbricata, e basi semierecta, angulo recto’ diver- gentia, valde devoluta, circinnatave, semicordato-ovato-oblonga, sub- triangularia, acuta, superiora acuminulata, sepe apiculata v. apiee denticulis 3-5 serrulata, infra medium sinuato-complicata; lobulus folio plus duplo brevior, ovalis, compresso-saccatus, subplanus, basi longitudinali cauli incurrens, margine obliquo integerrimo y. seepius (sinum versus) denticulo cellulam unicam opacam sistente auctus; cellule mediocres pellucidz intus annulo chlorophylli tenui cincte, membrana secundaria conspicua, trigonis majusculis. Foliola foliis subzequimagna imbricata reniformi-orbiculata, media basi altiuscule excavata (decurrentia), ad latera valde incurva caulem 142 DICRANO-LEJEUNEA, amplexantia basique rotundata plicato-crispa, apice lato tamen angus- tissime recurvula, margine toto cellulis parvis quadratis limbata, anculata integerrima. Fl. dioici: 9 terminales, e rami dichotomia. Bracteze foliis longiores, ad 2 usque complicato-bilobee, ad carinam rectam ala fere semicirculari auctze; lobi oblique lanceolati acuminulati superne sparse denticu- lati; lobuli duplo breviores angustioresque rhomboidei acuti; bracteola bracteis paulo brevior, ovalis, apice rotundato grosse serrata. Perianthia vix emersa obovata subobcordata obscure rostellata fere com- planata, postice parum convexa inermia, margine infra apicem ciliis paucis (utrinque 4-6), minutis, 3-4 c. longis, sparse obsita. Adyeniunt in altero cespite plant graciliores magis ramose, aliis ramis brevioribus julaceis, foliis lobulo turgidiore instruetis, antheridiis autem orbatis, anne igitur masculze? Suscexus XVII.—ODONTO-LEJEUNEA, S. Plante speciosee, sat elatee v. pusillee, prostrate et radicellis suis, in haustoria disciformia radiatis, arcte repentes, flaccidze rufo-badiz, raro in pusillis albicantes, vage ramos, raro subpinnate, ramis ineequi- longis interdum assurgentibus. Folia magna—in speciebusetiam pusillisseepe majuscula—O'5—2:0™™ longa, laxiuscule imbricata, plana undulatave, in sicco seepissime recurva, in paucis crispata, subdimidiata subfalcata, paulo longiora quam lata, in majoribus pro m. late obtusa, in pusillis saepe subacuminata, mar- gine toto (v. ex parte) argute spinoso-dentata, vel saltem (in pusillis) muricato-serrulata; lobulus=fohi }—4, raro minutus, rarissime sub- obsoletus, subplanus raro involutus, margine v. integerrimo v. den- ticulato, dentibus interdum cellula unica opaca terminatis; cellule mediocres y. parvule (j:—3;"™™) subeconformes subplanie, pariete ad angulos interdum etiam ad media latera incrassato. Foliola foliis 2-8-plo minora, seepius orbiculata, apice rotundato integra, raro emarginato-truncata, in unica L. Peruviana integra sepiusque bifida in eadem stirpe, fere semper dentata, in paucis utrinque sagit- ato-hastatove-spinosa, haustoria disciformia basi proferentia. Flores dioici—in unica sp. monoici: ; 9 in caule ramove terminales, inno- vatione (seepe prolifera) suffulti. Bracteze foliis minores angustiores, lobulo minuto nullove; bracteola lata apice rotundata, raro subemar- ginata—solum in L. Peruviana interdum bifida; omnes ad foliorum instar seepissime dentate. Perianthia plus minus alte emersa, cuneata v. obtriangularia, apice lato fere semper profunde obcordata—raro solum truncata retusave—ros- tellata, valde compressa, postice lata unicarinata, margine toto vel saltem dimidio supero alata, ala vel spinoso-dentata vel (in pusillis) denticulata spinulosave. Amenta ¢ ramulum totum vel ejus apicem solum tenentia, tenuiuscula ; bractee pauci-plurijugee laxiusculee diandree. Hab. In arborum preecipueque Palmarum humiliorum foliis vivis, spe etiam in filicibus, vix unquam in corticibus saxisque. OpoNtTO-LEJEUNEBA. 143 Distr. In sylvis Amazonicis et Andinis ad alt. 2500™ usque sat fre- quenter occurrunt, speciesque 10 legi; aliz in insulis Antillis et Guiana invent sunt; nulla species (quantum scio) Asiatica adest, 1 autem Africana (L. tortuosa L. et L.) et 1 (L. Sieberiana G.) in Mauritii insula. A. Foliola integra—in unica specie truncato-emarginata. § Folia margine dentibus magnis paucis, sinubus pro more lunulatis, armata. Bractew subelobulate. a. Foliola basi cordata sagittatave, margine plerumque dentata.—Plante: elatiores. a’. Flores dioict. 1. Udonto-L. lunulata. Rufo-badia flaccida siccando crispa vage ramosa. F. semiovata subfaleata rotundata—raro spinoso-acuta—toto ambitu spinoso-dentata, dentibus posticis paucioribus (sub 4) majoribus, sinubus valde excisis, margine postico incurva basinque versus com- plicata; lobulus 3--5-plo minor ovato-quadratus, ad plicam convexo- saccatus, margine plano, apice subintegerrimo. Foliola f. 3-4-plo minora orbiculata basi subcordata vel rudimentarie hastata, apice denticulata basin versus spinulosa. Br. f. duplo minores ovato- ovales acutz dentate basi obsolete complicate; bracteola late ellip- tica dentata. Per f. subbreviora obcordata brevissime rostellata, toto margine late alata, ala crebre inciso-spinosa. Andr. longispica. Var. angustiflora, subminor, valde innovando-prolifera, foliis magis equidentatis, perianthiis preelongis apice parum emarginatis. 2. Odonto-L. caleorata. Subpinnatim ramosa siccando crispa. F. diver- gentia subdimidiato-ovato-oblonga rotundata, superiora subacuta, margine fere toto sub:equaliter serrato-vel spinuloso-dentata, sin- uato-complicata, plica recta transversa folio 4-plo breviore; lobulus subplanus appressus tectus ovato-trapezoideus apice acuminulatus vel exciso-2-3-dentatus. Foliola subduplo breviora cuneato-rotunda, basi prelonge sagittata margine toto dentata spinosave. Br. foliis multo minores ovate acute spinulose basi minute sinuato-compli- eatee ; bracteola subrotunda spinulosa. Per. alte emersa cuneato- oblonga, truncato-rotundata vix obcordata, longirostria, rostello apice spinuloso, margine late alata, ala arcte ciliato-spinosa, 3. Odonto-L. rhomalea. Robusta inequaliter ramosa, aliis ramis assur- gentibus, siccando crispatissima. F. arete imbricata rotundata, margine toto equaliter spinuloso-denticulata sinuato-complicata ; lobulus 3-plo brevior triangulari-ovatus subacutus crenulatus, crenulis cellulam unicam opacam sistentibus. Foliola plus duplo breviora cuneato-reniformia apice lato integerrima, basi utrinque minus longe sagittata spinoso-paucidentataque. a’, Flores monoict. 4. Odonto-L. cherophylla. Majuscula inzequaliter bipinnata. F. laxe im- bricata patentia oblique ovata rotundata dentata subrecte complicata; lobulus fere 3-plo brevior decurrenti-saccatus, apice plano 3-dentato. Foliola f. vix 3-plo minora cordato-orbiculata integerrima v, subden- ticulata. Br. parvee ovales acute dentate obsolete lobulate; bracteola ovali-rotunda valde concava integerrima. Per. f. vix breviora cuneato-oblonga subemarginata, postice altiuscule carinata, margine (basi excepta) ala angusta spinuloso-denticulata cincta. b. Foliola basi rotundata decurrentiave, integerrima. Species humiliores, grandifolie tamen, omnes drovce. 144 ODONTO-LEJEUNEA. 5. Odonto-L. 10-dentata. Rufo-badia subpinnata. F. subcontigua oblongo- rotunda antice apiceque argute spinuloso-dentata, dentibus sub 10, lobulo nullo y. perparvo. Foliola 3-plo minora subspathulato- rotunda. Br. laxee foliis vix diverse; bracteola oblonga truncato- rotundata. Per foliis dimidio longiora obcordato-triangularia, margine superiore alata, ala spinis longis utrinque 8-10 armata. 6. Odonto-L. hapalochroa. Pallida tenerrima subramosa. F, late semiovato- oblonga rotundata, superne angulato-dentata, dentibus paucis (sub 5) recte complicata, lobulo 3-plo breviore incurvo. Foliola 3-plo_bre- viora orbiculata. Br. foliis minores semiobovate denticulate elobu- late ; bracteola obovato-rotunda. Per. cuneata truncata retusulave, apicem versus alata, ala utrinque 3-laciniata. 22. Folia angustiora e cellulis marginalibus prominulis muricato-serru- lata, nunquam valide dentata. Bractew (altera saltem) lobulate. Plante pusille dioice. 7. Odonto-L. Surinamensis, Albescens crebre subpinnata eequaliter foliosa. F. imbricata semicordato-ovata falcata abrupte acuta minute denti- culata et (ramea precipue) muricato-serrulata, lobulo 4-5-plo breviore inflato. Foliola 3-plo minora squarroso-recurva orbiculato-reniformia integerrima. Br, f. breviores semiobovato-lanceolats acute serru- latee parvi-lobulate, bracteola obovato-rotunda retusula, Per. longe obcordato-obconica valde compressa, margine superne complanato spinulosa vel fere inermia. 8. Odonto-L. stachyclada. Rufo-badia vage ramosa, aliis ramis brevibus aliis elongatis parvi-confertifoliis. F. subcontigua plana subfalcata semioblonga vel semicordato-ovato-oblonga acuta obtusave raro acuminulata, badio-marginata, submuriculato-denticulata v. fere in- tegerrima, lobulo minuto involuto; ramorum spiceeformium minora conferta ovato-lanceolata magis denticulata. Foliola 4-5-plo minora reniformia vel subquadrata rotundato-truncata, raro obcordata, in- tegerrima. Br. foliis subminores ovales acutée serrulatee, altera lobu- lata; bracteola obovato-obcordatove-orbiculata. Per. emersa cuneata late truncata, margine supero paucispinulosa v. subinermia. 9. Odonto-L. truncatula. Rufo-badia czespitosa, subpinnatim ramosa, ramis apice circinatis. F. subimbricata decurvo-falcata semiovato- lanceolata acuta acuminulatave argute muricato-serrulata, lobulo plus duplo breviore convoluto. Foliola inferiora parva, superiora increscentia 4 fol. subeequantia, squarrosa, subquadrata, apice lato exciso-truncata integerrima vel secus flores 9 denticulata. Br. foliis subeequales spinulose, altera elobulata; bracteola suborbiculata cochleata integerrima. Per. obcordato-spatulata profunde emargi- nata, margine subintegerrima, B. Foliola pro more distincte bifida. 10. Odonto-L. Peruviana. Dioica rufo-badia, longe repens subbipinnata. F. subimbricata subfalcato-semiovata rotundata subacutave, margine antico apiceque spinuloso-denticulata, lobulo triplo minore trans- verso ovato-trapezoideo inflato. Foliola inferiora parva, superiora inerescentia orbiculata recurvo-cochleata denticulata, ad 4-4 (raro ad 4 usque) bifida, rarissime integra, Br. foliis multo minores lance- olate serrulatee brevilobulate; bracteola ovalis denticulata bifida in- ODONTO-LEJEUNEA. 145 tegrave. Per. obcordato-triangularia valde compressa supra medium anguste serrulato-alata. Andr. longispica, 1. OponTO-LEJEUNEA LUNULATA, Web. Jung. lunulata, Web. Prodr. 33. Lejeunea 1. G. L. et N. Syn. Hep. 336. Hab. In sylva Amazonica, ad folia viva, haud infrequens; Tawaté prope Parad ; San Carlos et San Gabriel fi. Negro, etc. Per Americam tropicam sylvis calidis dispersa, a Mexico et Antillis ad Brasiliam australem. F1-4x°9, lob 3, cs; f'* 55 x 6, 35x35; br 75; br? "7 x ‘5; per 115 x 1:05 (spinis inclusis) 1-1 x -9™™, Majuscula rufo-badia arcte repens, siccando e foliis recurvis valde crispa. Caules $—2-pollicares vage ramosi. Folia subimbricata plana vel seepius subtortilia crispulave, semiovata acinaciformia plerumque rotundata, toto ambitu grossiuscule spinoso- dentata—dentibus posticis paucis, sub 4, sinubus latis profundis, medio precipue, anticis crebrioribus minoribus—margine postico in- curva basinque versus complicata; lobulus 5-plo brevior subquadra- tus ovatusve subsaccatus (ad plicam rotundatus), margine applanatus sinumque versus vel truncatus vel obsolete dentatus vel denique sensim in lobum majorem transiens; cellule mediocres subconformes equilateree pellucide. Foliola foliis 3-4-plo breviora orbiculata, basi breviter sinuato-decurrentia, rarissime cordata vel rudimentarie hastata sagittatave, margine pauci- denticulata, plana vel recurvo-convexa. Flores dioici: 9 in ramo terminales, innovatione spe prolifera suffulti. Bracteze foliis duplo minores ovato-ovales acutze dentatee, basi minute inflexe vel non; bracteola late elliptica, medio concava, margine ex- planata dentata. Perianthia foliis caulinis subbreviora, late obcordata, brevissime rostel- lata, compressa, postice obtuse carinata, toto margine late alata, al& crebre spinosa incis&ve, spinis exclusis 5 cellulas lata. Andreecia ramum totum vel solum ejus. apicem tenentia; bracteze pluri- jug laxiusculz, ovate, a basi ad # alt. convoluto-complicatee, mar- gine dentate, Jobulo in lobum sensi transeunte. Obs. The postical margin of the leaves has usually only four teeth, and the gap between the second and third tooth is so wide and deep— extending to nearly one-third the length of the leaf—that it looks as if a piece had been cut out artificially. Var. angustiflora (Odonto-L. angustiflora, 8. Mst.). A typo differt ramis pluries innovando-proliferis; foliis duplo fere brevioribus (*85 x *6™™.) oblique oblongo-subrotundis subacutis obtusisve magis equaliter dentatis, lobulo haud saccato (plica transversa); bracteis lanceolatis erebre argute spinulosis; perianthiis foliis duplo fere longioribus (1°5 x -9™™) anguste obovato-oblongis retusis subemarginatisve. Ad fl. Bombonasa. Obs. The fertile branches, although short, innovate many times, there being only a pair of leaves between two consecutive ? flowers, which stand alternately right and left of the branch, TRANS. BOT. SOC. EDIN. VOL. XV. TE 146 ODONTO-LEJEUNEA. 2. OponTo-LEJEUNEA CALCARATA, Mont. (?) Phragmicoma calearata, Mont. Ann. Sc. Nat., 1843, p. 261 (2); Lejeunea lunulata y calearata, Syn. Hep. 326. Odonto-Lejeunea chelidonura, Spruce Mst, Tab. In sylva Amazonica, precipue secus fluvios Negro et Bombonasa, in foliis vivis, raro in cortice. In Andibus ad 1200™, alt. ascendit supra M. Campana. F 14x 1-25, lob ‘6 altus, 35 latus (ad plicam), c 33; f'* °85x ‘8 (calcaria 35); br 95 br’? -75x°8; per 1°35 x 1:05™™. Majuscula rufo-badia prostrata arcte adrepens, Caules 1-2-pollicares vage ramosi, vel in plagule ambitu distanter subpinnati, plerumque sparsi, raro in densum stratum intexti. Folia magna ad + lat. imbricata, angulo recto divergentia, subplana— siccando sepe recurvo-crispula, late oblique ovata oblongave, fere dimidiata, apice rotundata vel superiora acutiuscula, margine toto, basi antica lata caulem transeunte excepta, argute serrato-vel spinuloso- dentata, dentibus «equidistantibus, 2 supra plice apicem ceteris seepe majoribus, margine infero a medio incurva basinque versus sinuato- complicata; lobulus plus 2-plo brevior subplanus et appressus anguste ovato-trapezoideus, basi (i.e. plicé) recta subtransversd, axi cauli parallel, acuminulatus ssepeque apice 1-vel pauci-dentatus; cellule majuscule subconformes hexagons, trigonis ad angulos conspicuis. Foliola foliis vix duplo minora cuneato-orbiculata, toto margine distanter dentata spinosave—quasi polygona, angulis in dentem productis— basi profunde sagittato- (rarius hastato-) bifida, se. utrinque in calcar prelongum acuminatum deorsum protracta. Flores dioici: Q in ramis primariis terminales, innovatione simplice pro- liferave suffulti. Bractez foliis longe breviores ovate ovalesve acute spinulos, basi ipsa anguste sinuato-complicate (vix lobulate); bracteola subrotunda concava spinulosa. Perianthia folium caulinum subzequantia, cuneato-oblonga truncata—vix obeordata, longirostria (rostello apice spinuloso), valde compressa, antice depressa, postice obtuse carinata, margine fere a basi late alata, ala superne arcte spinoso-serrata-ciliatave (sine spinis 3-5- cellulas lata). Andrecia ramos terminantia spiceeformia; bracteze plurijuge haud con- fertz, foliis 2-3-plo minores, ovales, acute serrate, ad 4 bifidee, lobulo arcte involuto anguste fusiformi antheridia bina fovente. Ad rivulum Cauapuna prope 8. Carlos, in foliis, formam legi minorem, magis ramosam, pinnatam sterilem, foliis equaliter argute dentatis, lobulo rhombeo; foliolis profunde (fere inciso-) dentatis, calearibus baseos pre- longis, c#eterum foliolum subeequantibus, rectis vel paulo divergentibus. Juxta fl. Bombonasa, in folio, aderat forma elata, tripollicaris, rufo- fulva, inequaliter pinnata bipinnataque, foliis magnis magis divergenti- bus; perianthiis crebris pro planta parvulis, apice demum bilabiatis, labio postico subinde ad carinam hiante. Eodem loco, in cortice, aderat altera forma, vage ramosa, foliis fere tam Jatis quam longis, semicordato-ovato-rotundis, minus argute dentatis ; foliolis prelatis margine polygonis—angulis submuticis—solum basin versus paucispinis, calcaribus prelongis margine interno (juxta caulem) dente reflexo auetis; perianthiis parvis folia haud excedentibus; cum OpoNTO-LEJEUNEA. 147 descriptione Montagnei, lc., “foliis suborbiculatis, amphigastriis basi utrinque spinoso-dentatis cweterum integerrimis,” sat bene convenit. Odonto-L. calearata, in omnibus suis formis, ab Odonto-L. lunulata mihi distincta videtur foliolis magnis argute dentatis bast sagittatis ; lobulis multo altioribus quam latis; perianthiis apice fere truncatis, rostello longo ore fimbriato mucronatis. Obs. I have never seen an authentic specimen of Montagne’s Lejeunea calearata, and as he himself in the ‘Sylloge’—his latest work—concurred with the authors of the ‘Synopsis’ in regarding it a mere variety of L. lunulata, | am doubtful if the plant above described be the same. My plant I believe perfectly distinct from L. lunulata, especially by the sagittate under-leaves, produced at each basal angle into a long sharp spur, or spine, and not unlike a swallow’s tail, or the tailed wings of a Papilio, whence the name I gave it many years ago, Lejewnea chelidonura. 3. ODONTO-LEJEUNEA RHOMALEA, Spruce. Hab. In sylva Canelos, ad Rio Verde fl. Pastasa affluentem, alt. 1400 m., in ramulis. F20x16,1:8x15; lobuls plica ‘6—5, alt °75-6; f"* 85 x 1:1; ¢ 3A—™. Robusta rufo-badia, in sicco valde crispa. Caules 2-3-pollicares repentes, ramos inzequilongos subdivisos, alios assurgentes, edentes. Folia arcte (ad 2 lat.) imbricata semicordato-ovata rotundata margine toto serrato-vel spinuloso-denticulata, basi antica caulem transeuntia, sinuato-complicata, plica recta transversa folio plus 3-plo breviore; lobulus planissimus subobliquus triangulari-ovatus, angulato-crenatus, crenulis 4 v. 5 cellulam unicam opacam sistentibus; cellulz mediocres equilatere, versus folii medium basinque majores. Foliola foliis plus duplo breviora, a basi cuneata sagittata reniformia, apice lato undulato-crispo integerrima, basin versus spinuloso-dentata, dentibus utrinque 4-5, infimo magno. Foliola caulis ramorumque repentium discum radicellarum magnum gerunt, ramorum assur- gentium tamen arhiza sunt. Ceteris affinibus robustior, siccando crispatissima, foliis maximis latis- sime imbricatis haud falcatis, lobulo toto margine distanter crenulato (nee apice solo 2-3-dentato, ac in L. lunulata) et foliolis apice preelato crispo integerrimis solumque prope basin dentatis, facile distincta species videtur. JL. calcarata folia habet laxius imbricata fere dimidiata, lobulo eodem fere ac L. lunulate, et foliola rotunda basi longius sagittata margine toto spinosa. 4. ODonTO-LEJEUNEA CHEZROPHYLLA, Spruce. Hab. Andes Peruvianos et Quitenses: Tarapoto, in foliis vivis, necnon in Bryo-Lejeunea diffusa repens, alt. 600; Tunguragua, in arborum foliis, alt. 2100™, F13x1°0; lob 5; ¢ dy; f'*-55x°55; br’* -9x°65; per 1:2 x ‘gam, Prostrata, sat robusta, rufo-badia, siccando crispa. Caules bipollicares, ineequaliter bipinnati, plus minus intricati.. Folia laxiuscule imbricata, angulo 60°-80° patentia, late oblique ovata rotundata, basi antic& lata caulem obtegentia, convexa, subcrispula, margine circumcirca fere dentata, postico valide late decurva basinque 148 ODONTO- LEJEUNEA. versus complicata; lobulus folio triplo fere brevior, saccatus decur- rens, subovatus, apice plano rotundato exciso-tridentatus (dentibus cellula unica opaca szepe apiculatis); cellule parvule subconformes pellucide. Foliola foliis vix triplo minora, orbiculata, basi cordata, auriculis parvis sinuato-reflexis rotundis, margine integerrima vel obsolete denti- culata. Flores monoici: 9 in ramis terminales, innovatione brevi rarius iterum florifera suffulti. Bracteze foliis longe breviores, ovales acutee den- tatee, basi postica minute inflexee vel non; bracteola ovali-rotunda suborbiculatave, concavissima, margine toto late recurvo integer- rimo. Perianthia emersa, f. caulinis vix breviora, cuneato-oblonga, subobcordata, compressa, brevirostria, postice altiuscule obtuse carinata, margine ab apice ad ? longit. usque anguste alata, ala spinuloso-denticulata, (sine dentibus 3 cellulas lata), rostello integro. Andreecia ad caulem et ramos lateralia, spiceeformia, folio collaterali sub- equilonga ; bracteze sub 6-jugee, subineequilobe ; lobulo = lobi 2, involuto-inflato; lobo subacuminato, acuto rariusve obtuso, integer- rimo; antheridia bina. A beautiful and very distinct plant—apparently the only monoicous species among the Odonto-Lejeunew. The leaves are so widely incurved at the postical margin, especially towards the apex, that they become almost funnel-shaped. 5. ODonTO-LEJEUNEA 10-DENTATA, Spruce, Hab. Ad fl. Bombonasa in sylva Canelos, alt. 600", in Iriartew pinna; Chimborazo, alt. 1200™, in filice. F -85x°6, lob 1; ¢ dy; f'* 25°25; br 8; bre 55x °35; per 12x 10mm, Pusilla rufa prostrata. Caules pollicares subpinnatim ramosi, ramis brevibus. Folia pro plantula magna paululum imbricata subplana suboblique oblongo-obovatove-rotunda, margine antico apiceque argute spinu- loso-dentata, dentibus sub 10, 3 vy. 4 cellulas longis, basi 2 v. 3 cel- lulas latis, postico integerrima raro minute 1—2-spinulosa, basi seepius levissime vel obsolete inflexa; lobulus (quando raro adest) parvus ovatus subinflatus, apice vel mutico transeunte vel apiculato-acuto; cellule majusculee subconformes pellucidee. Foliola plus triplo minora, distantia ovali-rotunda, paulo longiora quam lata, e basi decurrente subspathulata, integerrima. Flores dioici: 2 in ramo innovando-prolifero terminales (ad speciem laterales). Bracteze foliis parum diverse, basi parvilobulate (vel altera non); bracteola foliolis duplo major oblonga vel ligulato- oblonga truncato-rotundata subretusave integerrima. Perianthia foliis dimidio longiora obcordato-triangularia, angulis apicis rotundatis, rostello brevi in sinu, valde compressa, postice late con- vexo-carinata, margine supra medium alata, ala 2-3 cellulas lata longispina, spinis utrinque 8-10 sub 5 cell. longis, subulatis seepe hamatis. Plauta pulchella, est quasi L. uwnulata nana, ab illa tamen distinctis- ODONTO-LEJEUNEA. 149 sima. Odonto-L. hapalochroa certe distat statura minore, textura tener- rima; foliis lobulo majusculo auctis paucidentatis; perianthiis truncatis, utraque ala solum 3-spinosa. 6. OponTO-LEJEUNEA HAPALOCHROA, Spruce. Hab. Andes Peruvianos, in M. Guayrapurina, supra filices, alt. 900™, F'1-0x°8, lob °3, ¢ sh—sty 5 f'* °85 x 35; br “755 per 11x °9™™ (spinis in- clusis). Pusilla pallida tenerrima, Caules vix ~ poll. longi parce divergenti- ramosi. Folia magna pellucida contigua vel subimbricata, late semiovato-oblone» rotundata, supra medium angulato-dentata, dentibus paucis (sub 5) dissitis, basi postica recte complicata; lobulus lobo ter brevior angustus incurvus inflatusve, apice triangulari obtuso; cellule mediocres zquilaterse leptodermes, inferiores sensim majores. Foliola foliis triplo fere breviora distantia suborbiculata integerrima, basin versus haustorium radicellarum disciforme gerentia. Flores dioici: ? terminales, cum innovatione. Bracteze appresse foliis minores semiobovate apice denticulatz, lobulo 0; bracteola obovato- rotunda. Perianthia f. caulina parum excedentia cuneata truncata retusulave brevi- rostria valde compressa, antice subplana, postice carinata, margine supra medium alata, ala utrinque 3-spinosa vel potius 3-laciniata. 7. OponTo-LEJEUNEA SURINAMENSIS, Mont. Ann. Sc. Nat. XV., 110; G. L. et N. Syn. Hep. 329. Hab. F\. Bombonasa, in filice et palmarum pinnis necnon in saxis irri- guis; Fl. Uaupés, in Marantacee folio. In Surinamo lesit Sprirz- GERBER. F 6x °43, 5x35, 4x°B, lob 125—l, ¢ gk; ft 2x 25, 15x 25; br 4; i 3D x “25.: per °6 x “35™™, Pusilla albescens. Caules {-pollicares repentes crebre pinnati et subbi- pinnati, ramis assurgenti-arcuatis. Folia imbricata semicordato-ovata dimidiata, apice decurvo oblique ab- rupte acuta, margine antico rotundato toto, postico subrecto solum apicem versus muricato-serrulata, prope basin involuto-complicata ; lobulus 4-plo brevior subhorizontalis ovatus inflatus exciso-acutus ; cellule parvee pellucidee eequilateree, inferiores laxiores, subapicales multo minores et conico-subprominule, Foliola subdissita, foliis triplo minora, squarroso-recuryva, orbiculato-reni- formia integerrima, basi discum radicellarum magnum ferentia, apice rotundata (nec retusa). Flores dioici: 2 in ramo terminales, innovatione suffulti. Bractes foliis breviores semiobovato-lanceolate acutze, Iobulo 4~5-plo breviore angusto; bracteola obovato-rotunda interdum retusula. Perianthia f. caulinis eequilonga, anguste obcordato-obconica, valde eom- pressa, antice subdepressa, postice late obtuse carinata, auriculis apicis profunde emarginati subrotundis complanatis margine spinu- losis vel subinermibus, rostello e sinu brevissimo, Andrecia longispica, ramulum totum vel saltem ejus majorem partem 150 OpDONTO-LEJEUNEA. tenentia. Bracteze plurijuge, contigue vel subdissite, foliis 4-plo breviores subrotundo-inflate carinate apice breviter subinzequaliter bilobe, diandree. Colore albo, foliis minoribus acutis crebre denticulatis, areolatione longe densiore, etc. etc., a L. hapalochroa longe distat. Folia caulina aliquando paucidentata, fere integerrima; ramea contra arcte muricato-serrulata.—Carinee perianthii postica revera due sunt, basi late dissitee, superne sensim conniventes et in sinum apicis obcor- dati confluentes, ita ut carinam unicam latam sistere viderentur. Ad saxa fl. Bombonasa irrigata advenit forma robusta dense depresso- cxspitosa, longe simplicior; foliis magis elongatis interdum subobtusis ; ceeterum cum ‘ty po congruit. 8. OpontTO-LEJEUNEA STACHYCLADA, Spruce. Hab. In sylva Amazonica secus fluvios Negro, Uaupés, Aripecuré, ete., in arborum palmarumque foliis preecipueque in filicibus; juxta Mandos in cortice. F 5x ‘33, lob O75—'1, ¢ 35; f'@ *1 x15; br 45 K-25; br’ °35 x 35 ; per 6 x “4, °5 x °4mm, Pusilla rufo-badia laxe repens. Caules 4-}-pollicares vage vel pinnatim ramosi, aliis ramis brevibus, aliis elongatis parvi-confertifoliis spicam mentientibus. Folia caulina subcontigua fere planissima semicordato-ovato-oblonga, vel sublanceolata, acuta, rarius acuminulata obtusave, margine preecipue antico distanter denticulata serrulatave, inferiora subintegerrima, badio-marginata, recte complicata—interdum ad plicee apicem in dentem ad speciem protracta; lobulus minutus folio 5-7-plo brevior subovatus subinflatus; cellule mediocres pellucidee, ambitu late opacee, marginales subprominule opaciores. Folia ramorum elonga- torum spiceeformium minora conferta ovato-lanceolata argutius den- ticulata. Foliola foliis 3-5-plo breviora, reniformia subquadratave, rotundato- truncata retusulave, rarius obcordata. Flores dioici: 9 terminales, innovatione brevi suffulti. Bracteze foliis subminores ovales vel ovali-lancealatz acutze, vel serrulate vel grosse pauciserratee, altera elobulata, altera (innovationi adnata) lobulata ad basin fere fissa, lobulo triplo minore lanceolato; bracteola subob- cordato-orbiculata concava integerrima. Perianthia subemersa, cuneata vel obtriangularia, apice lato truncata, margine supra medium paucispinulosa vel haud raro subinermia. Andrecia brevispica, vel ramulum cauligenum sistentia, vel in ramo ter- minalia; bracteze sub 5—jugze contignee compresso- -subglobose. Obs. Lobulus foliorum variabilis aliorum ramorum interdum folio solum 4-plo brevior. 9. ODONTO-LEJEUNEA TRUNCATULA, Spruce. Hab. In Andium Quitensium radicibus, alt. circiter 1200™.: Mapéto, in sylva Canelos, ad arbores inter muscos (¢); Chimborazo, in filice (? ), sociis Odonto-L. surinamenst ae Lejewnets. F ‘65 x ‘4, ‘6 x °45; lob ‘30-25; ¢ 7y—7ay; f' 28x '35; br 65; br'4 35 x °4; per -75'% "6; <6 x60: Pusilla dense caspitosa rufo-badia. Caules semipollicares basi fasciculato-, OpDONTO-LEJEUNEA. 151 ramosi, dein assurgentes subpinnati, ramis brevibus paucifoliis apice circinato-decurvis. Folia subimbricata patula decurvo-faleata semiovata vel semiovato- lanceolata, subacinaciformia, abrupte acuta acuminulatave, margine antico toto argute muricato-serrulata, postico, apice serrulato excepto, integerrima, infra medium sinuato-lobulata; lobulus 2-3-plo brevior, in situ anguste convolutus, subcylindricus fusiformisve, explanatus autem subrotundus, integerrimus; cellule parvule pellucidee, pariete ad angulos incrassato, inferiores submajores. Foliola plus duplo breviora, squarroso-recurva, subquadrata (paulo latiora quam longa) apice lato emarginato-truncata, angulis sinuque (per- brevi) pro more acutis, basi rotundata, margine integerrima ; superiora autem, florem ? versus increscentia, denticulata vel subspinulosa, suprema (i.e. bracteola) fere semper integerrima, Flores dioici: @ terminales, innovatione suffulti. Bractezee muricato- spinulosz, inzequilonge, altera libera foliis zequalis oblique obovato- lanceolata acuta, lobulo minuto lineari-rhomboideo aucta, altera duplo brevior lanceolata elobulata innovationi adnata; bracteola suborbiculata cochleato-concava repanda integerrima. Perianthia obcordato-spathulata, sinu apicali profundissimo, valde com- pressa, postice parum convexa, opaca, margine subincrassato in- tegerrima. Andreecia (juniora) apicalia, plerumque brevispica; bractez laxiuscule, subineequilobee, lobulo subacuto. Cum L. Surinamensi intricata crescit, difficile extricanda, facilius dis- tinguenda: colore badio; caule minus ramoso; ramis validioribus; foliis crebrius setuloso-ciliatis; foliolis squarrosis semper emarginatis, superiori- bus denticulatis; perianthiis apice inermibus, nec subspinulosis.—L. con- vecistipa, Gotts., differt foliis acuminatis, foliolis rotundis, perianthiis apice denticulatis.—L. truncatula L. peruviane e longinquo atfinis ! 10. OponTo-LEJEUNEA PERuVIANA, L. et Ldbg. Nov. et minus cogn. stirp. Pug. v. (1833) 18; G. L. et N. Syn. Hep. 339. Hab. Per totam sylvam Amazonicam, ad arborum precipue palmarum folia, frequens ; in Andium radicibus orientalibus vix supra 600, alt. ascendit. F caulina 1°4x ‘8, ramea 1:0 x °65, “75x °6; lob 4-45; ¢ 3h; fl 5x 65, ena, One 75 <5: bri “6 x 35, per 95x -7, “9x -8E™. Elata rufo-badia late arcte repens. Caules 1-2-pollicares subbipinnati, ramis crebris pro more brevibus, validi, strato corticali cellulis magnis ovali-cylindricis 7-seriatis, stratis internis duobus e cellulis 2-3-plo angustioribus elongatis, constantes. Folia subimbricata subfalcata semiovata—interdum basi semicordata apice decurvo rotundata vel oblique subacuta, margine antico apiceque spinuloso-denticulata (caulina obsolete, ramea argutius, insuperque margine celluloso-muriculata), postico integerrima incurvula infraque medium sinuato-complicata, ad sinum spe in dentem ad speciem devexa; lobulus subtriplo minor transversus ovato-trapezoideus in- flato-saccatus apice in folium sensim transiens; cellule mediocres equilaterzee pellucidee, marginem anticum apicemque versus multo minores, pauce supra basin sat majores interdum in ocellum aggregate. 152 OpontTO-LEJEUNEA. Foliola caulina remota foliis fere 5-plo minora orbiculata denticulata, apice ad 3-} emarginato-bifida, raro integra; ramea multo majora, superiora folio adjecto sepe perpaulo minora, argutius denticulata fere ad 4 bifida; ommia ex alis recurvis cochleata, haustorium dis- coideum parvum pallidum gerentia. Flores dioici: 9 in ramo spe brevi terminales, innovatione simplice suffulti. Bracteze foliis multo minores lanceolate serrulatz basi breviter complicate, lobulo lineari-rhomboideo; bracteola ovalis sub- bifida integrave denticulata (in fl. sterili ad $ bifida.) Perianthia emersa obcordato-triangularia valde compressa, supra depressa subtus convexo-carinata vel solum gibba, margine supra medium peranguste alata serrulataque. Andreecia longispica ramulo tenui constantia; bracteee minute subcon- tiguie arcte complicate solum basi ventricose. Foliorum lobulus medio seepe in literee S formam sinuatus, Var. megalostipa, rufa planissima siccando hand crispata, foliolis (superiori- bus preecipue) foliis paulo minoribus ad 4 bifidis.—Hab, ad fl. Bom- bonasa et Uaupés. Ad eandem speciem pertinere videntur DL. foliorwm, Nees in Syn. Hep. 326, et L. Chitonia, Tayl. in L. et L. op. supra cit. Pug. vill. (Syn. Hep. 339) Supgenus XVITI.—PRIONO-LEJEUNEA, S. Plante pusilla, seepe albicantes, prostratie v. laxe reptantes. Caules vage v. subpinnatim ramosi, ramis pro more paucis. Folia parva parum imbricata decurvula sepissime acuta acuminatave, e cellulis marginalibus conicis crenwlata serrulatave, interdum facie muriculata; lobulus 2-6-plo minor inflatus, rarius obsoletus; cellule gy—sip™™, plerumque parvule, pellucide, pariete ad angulos subin- crassato, marginales (raro omnes fere) conice, subbasales seepe multo majores. Foliola parva minutave subrotunda fere semper integerrima, in pluribus adusque (in paucis ultra) medium bifida; radicella fasciatae peni- cillateeve—nunquam in discum radiantes. Flores in plurimis monoici, in paucis dioici, Rami 9 in aliis sp. brevis- simii simplices, in aliisinnovantes. Bractez foliis plerumque minores parvilobulatee, argutius denticulate spinuloseeve; bracteola bifida. Perianthia iis Odonto-Lejeunee sat similia, sc. obcordata compressa postice obtuse l-carinata, rarius tamen alata, plerumque margine solum muricato-spinulosa. Andreecia ramulo tenui cauligeno constantia, raro terminalia; bractes parvulee 2—20-jugee diandre. Obs. Odonto-L. Peruviana nexum cum Priono-Lejeunea preebet, differt autem statura elatiore; foliis magnis seepe argute dentatis; foliolis den- tatis, aliis bilobis, aliis solum emarginatis v, etiam (sed rarissime) in- tegris. Hab. In arborum foliis, ramis truncisque, sepe supra alias hepaticas repentes; planitiem et montes humiliores diligentes, PRIONO-LEJEUNEA. 153 Distr. Species 16 vel plures cognovimus, omnes mere tropico-Ameri- canas (nisi LZ. microdonta G. etiam in insula Hawaii inventa), in insulis Antillis, Venezuela, Guiana et Amazonia frequentiores, in Brasilive Peru- vieeque austrinis (ut videtur) rariores. Ipse in sylva Amazonica et in Andibus orientalibus—vix supra 1200™ ascendentes — bo 10 species legi. A. Rami Q brevissimi simplicissimi. a. Llores dioict. . Priono-L. fabroniefolia, Elongata parum ramosa flavescens. F. sub- contigua planiuscula ovata tenuicuspidata margine toto argute muricato-spinulosa, seepius elobulata. Foliola 4-plo minora bipar- tita, laciniis ovato-lanceolatis acuminulatis. Br. foliis minores acuminate spinulosve; bracteola lanceolata ultra 4 bifida, segmentis acuminatis, subserrulata. Per. obcordato-cuneata compressa, postice l-carinata, margine tenui superne muricato-denticulata. . Priono-L. muricato-serrulata. Pusilla, caule filiformi paucirameo. F. dissita lanceolata subacuta muricato-serrulata, lobulo mediocri inflatu nullove. Foliola 6-plo breviora profunde bifida, segmentis acutis. Br. foliis sublongiores acutilobze ; bracteola ad $ bifida obovato- lanceolata. aa. Flores monoice. 3. Priono-L. recurvula. Pusilla flava laxe ramosa. F. contigua semi- ovato-lanceolata apice decurvo tortili acuminulata, margine recurvulo argute muricato-serrulata, facie levia, sinuato-complicata, lobulo 3-plo breviore inflato. Foliola f. 3-plo breviora oblongo-rotunda ad 4 bifida, segmentis acuminulatis. Br. foliis equales muricato-serru- late, lobo falcato-lanceolato subacuminato; bracteola cuneato-lanceo- lata ad } bifida. Per. emersa cuneata compresso-plana apice lato retuso muricato-spinulosa. Andr. brevispica. . Priono-L. denticulata. Submajor pallide flavescens inzequaliter sub- bipinnata. F. subimbricata decurva semicordato-ovata acuminulata muricato-denticulata apiceque subserrulata valde sinuato-complicata, lobulo 5-plo breviore inflato. Foliola 2-4-ple breviora suborbiculata ultra 3 bifida segmentis subacuminatis. Br. f. minores acute muri- cato-serrulate; bracteola obovato-lanceolata ad 4 bifida serrulata. Per. foliis caulinis sublongiora obcordato-spatulata valde compressa postice convexo- (raro acute) carinata, profunde emarginata, margine superne muriculato-dentata v. subspinulosa. Andr. siepe longi- spica. 5. Priono-L. temnantha. Pusilla albida subfasciculatim ramosa, ramis arcuantibus. F. subimbricata fornicata late oblique] ovata acuta argute muricato-serrulata, lobulo 3-plo breviore. Foliola 4—6-plo breviora subrotunda ultra 4 bifida, segmentis acutis. Br. foliis sub- longiores iis L. recurvule fere conformes. Per f. fere 2-plo longiora cuneata recte truncata subretusave, margine superne muricata setulosave, postice altius carinata. Andr. brevispica, B. Rami Q semel v. iteratim innovando-elongati. b. Flores monotct. 6. Priono-L. microdonta. Pallide viridis vage subpinnata. F. sub- imbricata decurva, interdum subfaleata, oblique ovata rotundata raro TRANS. BOT. SOC. EDIN. VOL. XV. U 154 PRIONO-LEJEUNEA. subacuta, levia v. apicem versus muriculata, celluloso-crenulata- serrulatave, ocellata, subsinuato-complicata, lobulo 4-plo breviore inflato. Foliola sub 5-plo minora ovali-rotunda ad $ bifida. Br. f. minores serrulate profunde bilobee, lobo semilanceolato obtuso; bracteola obovato-lanceolata brevissime bifida. Per. f. sublongiora, cuneata retusa v. obcordata, postice convexo-carinata, margine superne muriculata. Andr. sepius brevispica. Priono-L. macrocardia. Priori proxima. F. parva planiuscula semi- ovato-rotunda subacuta rotundatave margine muriculata facie levia, exocellata, sinuato-complicata, lobulo turgido. Foliola 5-plo minora orbiculata ad } bifida. Br. iis prioris subconformes. Per. magna foliis fere 3- plo longiora cuneata apice profundiuscule emarginata, margine supra medium spinulosa. Andr. brevispica. 8. Priono-L. leptocardia. Pusilla pallida pellucida tenera subpinnata. F. magna planiuscula fere semicircularia subacuta rotundatave, facie fere tota margineque argute celluloso-muriculata, recte compli- cata, lobulo majus sculo y. obsoleto. Foliola 4- plo minora subrotunda paulo ultra 3 bifida. Br. foliis minores muricato-denticulate, sub- elobulats; bracteola ovali-lanceolata ad 3 bifida. Per. foliis sub- longiora obcordato-cuneata fere complanata, margine supra medium ala 3-4 ¢. lata serrulata aucto. “J bb. Flores dioict. 9. Priono-L. scaberula. Pusilla pallida pauciramosa. F. divergentia concava oblique ovata rotundata rarius subacuta, cellulis prominulis facie asperula margineque erosa serrulatave, valde sinuato-compli- cata, lobulo 3-plo breviore saccato, Foliola superiora } folii zquantia rhombeo-rotunda paulo ultra $ bifida. Br. f. sublongiores muricato- serrulate obovate concave parvilobulate ; bracteola obovato-rhom- boidea ad } bifida. 10. Priono-L. asperrima. Minuta viridis fragilis subramosa. F, sub- erecta obovato-rotunda subconcava, margine toto faciebusque e cellulis alte acute prominulis asperrima, sinuato- complicata, lobulo 3 f. fere equante turgido, Foliola minuta bipartita, cruribus subu- lato-acuminatis. Br. magne asperrime ad 3 bilobe vix complicate, lobo oblique obovato subacuto, lobulo parvo; bracteola ovali-ligulata ad 4 bifida, segmentis acutis, (Videas etiam Priono-L. muricato-serrulata ad 3 A.) 1. PrioNo-LEJEUNEA FABRONIZFOLIA, Spruce. Hab. In M. Campana, ad saxa, sterilis; Chimborazo, in arborum foliis, cam aliis Lejeuneis, fertilis; alt. circiter 13 300™, viget. F 5x ‘35; ¢ py; f 13; br-lobus °4 x °2, 55x ‘25; br'* 35 x 15, 4x °16; per "75 x 5™™, Prostrata, flavescens. Caules subpollicares fastigiati, subsimplices v. per- yp aulo ramosi, tenues, flexuosi. Folia subcontigna, fere plana, suboblique ovata ten margine toto argute muricato-serrulata-spinnlosave, pleraque elobulata, lobulo tamen (quando presente) brevi subovato inflato; cellule parvee sub- wquilaterw, paucee subbasales duplo majores fere in orbem disposite. PrIONO-LEJEUNEA. 155 Foliola distantia foliis 4-plo minora bipartita, laciniis subdivergentibus ovato-lanceolatis acuminulatis, integerrima. Flores dioici: 9 in ramo brevissimo terminales, foliis parvis 1-2-jugis infra bracteas suffulti, innovatione nulla. Bractew foliis minores ultra medium bifidee; lobus oblique lanceolatus acuminulatus spinuloso- serrulatus; lobulus rhomboideus acuminatus lobo duplo angustior; bracteola lanceolata, vel anguste obovato-lanceolata, ad 4 vel fere ad medium bifida, segmentis acuminatis, parum serrulata. Perianthia emersa obcordato-cuneata, compressa, margine tenui supra medium inzqualiter muricato-denticulata, postice altiuscule obtuse unicarinata. Folia in pl. Campanensi subduplo serrilata—L. mucronata Lac. in “Syn. Hepat. Javanicarum” (in mantissa ad finem), e Venezuela, nostra ob “folia ovata denticulata piliformi-mucronata” proxima, differt foliis dorso tuberculosis, foliolis denticulato-ciliatis. 2. PRioNo-LEJEUNEA MURICATO-SERRULATA, Spruce. Hab. In cortice vetusto, supra alias Lejewneas repens, ad fluvium Ramos flumini Amazonum tributarium, etiam ad Tauaé prope Para. F 3x15, lob -08, ¢ gy; fi 05; br -4; br 35 x -15™™, Pusilla pallide rufula prostrata; caules pollicares filiformes parce vage ramosi. Folia dissita erecto-patentia oblique lanceolata—interdum anguste ovalia obovatave—abrupte acuta, rarius obtusa, toto margine muricato- serrulata ; lobulus 4-plo brevior—aliorum ramorum solum 2-plo brevior, aliorum obsoletus—subovatus, basi turgidus, margine inflexo subtransverso, apice acuto; cellule minutule subelongatze, pellucide, ambitu subopace, pariete incrassato, planes convexwve, subapicales tamen marginalesque alte conico-prominule. Foliola distantia minuta, foliis 6-plo minora, subrotunda, profunde bifida, sinu lato sepe lunulari, segmentis lato-subulatis acutis. Flores dioici: ? in ramo brevissimo, folio singulo parvo folioloque infra bracteas stipato, terminales, innovatione nulla, vel rarissime brevi simplice, suffulti. Braztez folia subexcedentes complicato-bilobe, lobis lanceolatis acutis, inferiore duplo minore; bracteola obovato- lanceolata, ad 3 bifida, rima angusta, segmentis acutis. Obs. This very distinct species affords the only example I have met with of a normally determinate short female axis becoming occasionally (but very rarely) indeterminate, by putting forth an innovation beneath the flower, I did not succeed in finding perianths nor male plants. 3. PRioNo-LEJEUNEA RECURVULA, Spruce. Hab. In fl. Negro sylvis juxta S. Gabriel, in cortice. F -4x°3, lob "13, ¢ fy: f™ °125x°'1; br 4; br’* 35 x °15; per “6 x °5™™, Pusilla, flava, subrufescens, prostrata; caules centimetrum longi, laxe ramosi. Folia contigua, falcato-subdivergentia, semiovato-lanceolata, apice decurvo tortili acuminulata cuspidatave, margine anguste recurvula, iInequa- liter muricato-serrulata, raro hie illic spinulosa, a basi ad 4 alt. cum lobulo connata, carina convexa obtusa, ad lobuli apicem valde sinuata ; 156 PRIONO-LEJEUNEA. lobulus 3-plo minor ovatus inflatus exciso-acutus; cellule parvule (inferiores majores), valide incrassate, pellucidee, annulo chlorophylli angusto, marginales conice, ceeteree planze. Foliola distantia triplo minora oblongo- rotunda ad medium acute bifida, segmentis acuminulatis. Flores monoici: @ ramulo perbrevi constantes, innovatione nulla. Bracteze 1-jugie foliis eequales faleato-lanceolatee subacuminatee muri- cato-serrulatee, lobulo duplo minore angusto lineari-rhomboideo acuto; bracteola cuneato-lanceolata ad 4 acute bifida, serrulata. Perianthia emersa cuneata v. obtriangularia, retusa, subobcordata (obscure rostellata) conipressa, margine complanata, apice lato muricato- spinulosa. Amenta ¢ folium caulinum vix zequantia; bracteze paryule 2-6-juge. Species pulchra distinctissima, colore rufulo, foliis minoribus angusti- oribus acumine longiore tortili, margine toto recurvulo, argutius muricato- spinulosis, lobulo majore ; foliolis angustioribus ;_ perl nanthiis demum magis spinulosis. 4, PrioNo-LEJEUNEA DENTICULATA, Web. Jung. denticulata Web. Prodr. 30; G. L. et N. Syn. Hep. 337. Hab. In sylvis fi. Negro, Uaupés, Casiquiart, etc. frequens, in cortice ramulisque, rarius in foliis vivis, semper fere super alias Lejeuneas vel Plagiochilas parasitans; ad pedem occidentalem montis Chimbo- razo, alt. 1000". In insulis Antillanis sat frequens videtur. F *65 x “45, °5 x 38, lob “1-15; ¢ Dy 3 f* “3x 3, 25x 26, 15 xb aemeoos mer 6D xX Gem. Mediocris, pallida, subflavida, tenuis. Caules pollicares filiformes flexuosi ineequaliter pinnati et subbipinnati, arcte repentes, intricati, ramis elongatis seepe subliberis arcuantibus. Radicellze vel fasciatee vel in haustorium scopreforme patentes, apice nodoso-ramosze. Folia parum (ad } lat.) imbricata, decurva, raro subplana, semicordato- ovata subi rbrupte brevi-acuminulata acuta, apicem versus erosula v. subserrulata, margine toto e cellulis prominulis muricato-denticulata, valide sinuato-complicata, supra sinum divergentia; lobulus folio sub 5-plo brevior ovatus inflatus, apice brevi incurvo, raro obsoletus; cellule parvee subsaequales, solum inferiores sensim majores, mar- cinales conicee, ceeterae convexe v. fere plane, omnes pariete ad angulos incrassato. Foliola dissita, foliis 2-4-plo minora, suborbiculata, ultra 4 acute bifida, segmentis acutis subacuminatisve, integerrima. Flores monoici: 9 in ramo brevissimo, foliis parvis unijugis nullisve, folioloque unico infra florem stipato, terminales. Bracteze foliis sat minores, complicato-bilobe, lobo oblongo acuto, lobulo longe minore rhomboideo; bracteola tenuis obovato-lanceolata ad 4 acute bifida; omnes margine muriculatee apiceque interdum serrulate. Perianthia f. caulinis sublongiora obcordato-cuneata-spathulatave, valde compressa, antice depressa postice convexo-carinata, apice profunde emarginata brevi-rostellata, margine supra medium sparse muricu- lato-dentata, interdum dente longiore hic illic interposito subspinu- losa, carina postica leevi rarissime aspera. Andrucia tenui ramulo constantia; bracteee 4-12-jugee foliis plus duplo PRIONO-LEJEUNFA. 157 . minores confertee ovoideo-cymbiformes subinequilobe, ad carinam obtusam pellucide tubercnlose, diandree. Var. subintegerrima: tenuis laxifolia; foliis seepe elobulatis, e cellulis obtusioribus margine solum crenulatis vel integerrimis; perianthiis apice minus conspicue emarginatis. L. decora Tayl. ! in hb. Hook., ex insula Dominica, vix differt nisi bracteis spinulosis, perianthiisque superne pauci-longispinis. 5. PRIoNO-LEJEUNEA TEMNANTHA, Spruce. Hab. M. Guayrapurina, in cortice vetusto, cum Lophocolea muricata, F 35 x -25, lob 13, c ay; f 08x 08, 06x06; br lob 5x °25: br’ -4x per GO xa Pusilla, albida, dein rufescens. Caules 6° longi, subfasciculatim ramosi, ramique spe arcuati. Folia subimbricata fornicato-decurva, basi ad lobuli altitudem usque insigniter constricta, deinde abrupte antice dilatata, late oblique ovata (subdimidiata), sensim abrupteve acuta, margine toto, basi constricta excepta, e cellulis prominulis argute muriculata; lobulus triplo fere brevior; cellule parvulz subconformes subincrassate pellucidz, marginales superioresque conico-prominule. Foliola distantia 4—6-plo breviora, subrotunda, paulo ultra medium bifida, segmentis acutis. Flores monoici; 2 ramulo brevi, sine ulla innovatione, constantes. Bractez interne foliis sublongiores, profunde bifidee, subcomplicate, lobo faleato-lanceolato acuto muriculato-serrato, lobulo multo minore lineari; bracteola cuneato-lanceolata ad 4 bifida, segmentis acutis, serrulata. Perianthia f. caulina fere 2-plo excedentia viridia rufave cuneata, apice fere recte truncata, v. subretusa, raro subobcordata, erostria, margine supra medium muricata setulosave, facie postica alte obtuse unica- rinata. Calyptra paulo minor tenuis apice inequaliter 4-fida. Andreecia ramulo folium axillare sublongiore constantia; bracteze medi- ocres sub 4-jugze. Statura humiliore, foliis solum acutis, margine muriculatis—nec acuminatis subserratis ; foliolis duplo minoribus ; perianthiisque angus- tioribus, haud apice profunde emarginato-bilobis, a L. denticulata certe differt. 6. Priono-LEJEUNEA MICRODONTA, Gottsche. in Syn. Hep. 337. Hab. In sylvis flum. Amazonum primum legit cel. Martius ; ipse ad fl. Negro superiorem in filicibus (in T’richomane elegante et trichoideo preecipue), ad fl. Uaupés in formicarnm nidis, prope Pard supra alias hepaticas in truncis prostratis repentem. Fide cl. auctorum “Syn. Hepat.” etiam insule §. Vincentis et Hawaii incola est. F ‘6x °5, °5 x °42, lob 15-125, c. medie 34, marginales J;; f'* 125-1; br °55; br’* 4x ‘25; per “8x ‘5; amenta g1°3, br g 08™™, Pallide viridis prostrata intricata. Caules 1-1}-pollicares teneri yage vel subpinnatim ramosi. 158 PRIONO-LEJEUNEA. Folia subimbricata patulo-decurva, seepius divergentia, interdum falcata, oblique vel subsemi-ovata rotundata, rarius apice triangulari obtusa subacutave, basi ipsa angusta, dein antice abrupte truncato-dilatata (sed non semicordata) subsinuato-complicata, margine e cellulis pro- minulis serrulato crenulatove; lobulus folio 4-plo brevior ovatus vel semiovatus inflatus, margine inflexo horizontali, apice acuto; cel- lulke mediocres hexagonée, marginales duplo minores quadratze et conico-prominule, basales 5-8 (in seriebus duabus) ceteris multo majores elongate pellucidee ocellum sistentes. Foliola foliis 4-plo minora ovali-rotunda ad 4 bifida, sinu segmentisque subacutis. Flores monoici: Q in ramo perbrevi terminales, innovatione—sepe , raro @—suffulti. Bracteze foliis minores ad 4 bilobee, lobo semi- obovato-lanceolato obtuso, lobulo angusto rhomboideo vel subrec- taneulari; bracteola obovato-lanceolata brevissime (ad 1) bifida, seg- mentis contiguis acutis. Perianthia altiuscule emersa, obcordato-cuneata, e smu parum profundo brevissime rostellata, compressa, antice subplana, postice late con- vexo-carinata, margine complanato supra medium apiceque Imeequa- liter celluloso-serrulata-crenulata-erosulave, demum bilabiata. Amenta ¢ vel ramulo tenui folium caulinum superante constantia, vel in ramis terminalia; bractese 3-7-jugee minute laxiuscule. Species valde variabilis, foliis nune margine fere levissimis, nunc ser- rulatis erenulatisve, basin versus distincte (vel vix) ocellatis; perianthiis margine vel argute vel obsolete muricato-serrulatis, rarius setosis vel subspinulosis. Ad S. Carlos, in Trichomane sp., legi formam foliis argutius serrulatis indistincte ocellatis; perianthiis subrecte truncatis, vix retusis—minime obcordatis, superne argute crebre muricato-serrulatis, muricibus cellula unica elongate cenica subulatave constantibus, raro 2 v. 3 cell. longis; andreeciis longispicis (bracteis 6—10-jugis). Altera forma ad S. Carlos, supra muscos repens, folia habuit rufa, facie superiore plus minus celluloso-muriculata ; perianthia apice subobcordato crebre spinulosa. 7. Priono-LEJEUNEA MACROCARDIA, Spruce. Hab. In M. Campana, Andiam Peruvize, in cortice vetusto. F -35 x °3, lob 13, c A—A;; br -2; per 1:0 x 5™™. 55 50 Pusilla pallida dein fuscidula, L. micredonte et leptocardie valde affinis, sed differt: foliis multo mimoribus, latioribus, semiovato-rotundis, basi dilatatis subsemicordatis, apice abrupte acutis obtusisve raro rotundatis, obliquis (margine postico tamen rotundato, nee subrecto vel concavo ac in illis), subplanis celluloso-serrulatis, ad lobuli tur- gidi subsaccati apicem magis sinuatis; cellule, marginalibus conicis exceptis, subplanze, incrassate, Foliola minuta, foliis 5-plo mimora, caule vix latiora, orbiculata, ad 3 bifida. Flores monoici: 9 in ramulo brevissimo terminales, innovatione (seepe ¢@) suffulti. Bractese parvee profunde bilebee, lobo faleato semiovali muricato-denticulato, lobulo parvo lineari; bracteola obovato-lanceo- lata ad 4 fere bifida, PRIONO-LEJEUNEA. 159 Perianthia pro plantula magna, foliis fere triplo longiora, anguste obcor- dato-cuneata, apice profundiuscule emarginata brevirostria, margine supra medium inzqualiter spinulosa, spinulis 3-4 cell. longis basi 1-3 cell. latis, antice subplana, postice obtuse unicarinata con- vexave, Andreecia rami apicem—raro totum—tenentia; bracteze 4-6 juge. L. leptocardia folia habet duplo longiora, pro ratione angustiora, facie insigniter muriculata ; foliola duplo majora ovali-rotunda; perianthia tamen breviora foliis caulinis perpaulo longiora, distincte alata, minus profunde emarginata—Anne pro L. microdonte varietate habenda L. macrocardia 2? Statura minor, foliola minuta, preecipue autem perianthia magna distincte obcordata margine valide spinulosa vetant. 8. PRIONO-LEJEUNEA LEPTOCARDIA, Spruce. Hab. Andes Peruvianos, in M. Guayrapurina, supra filices, in M. Cam- pana ad cortices; in M. Chimborazo in tilice, cum aliis Priono- Lejeuneis implexa. F -65 x ‘50, lob -2, c Ay; ff °15x°'15; br 5-6; br’ -4 x -25, ‘3x18; per "7x5, BX .55mm, Pusilla pallida tenera pellucida, Caules j-pollicares prostrati pinnatim subramosi. Folia pro plantula magna subimbricata, late semiovata, fere semicircularia, abrupte acuta, obtusa, rotundatave, a basi constricta sublongitudinali antice valde dilatata, utraque facie (basin versus except4) margineque toto (basi postica excepta) argute celluloso-muriculata, infra medium recte complicata, plica subhorizontali; lobulus 3-plo minor semi- ovatus inflatus, apice occulto, interdum obsoletus; cellule parvule subequilaterze conico-prominul, basin versus tamen longiores sub- plane. Foliola foliis 4-plo minora, caule parum latiora, ovali-rotunda, ad vel paulo ultra medium bifida, subintegerrima. Flores monoici; @ in ramo perbrevi longioreve terminales, innovatione sepe ¢ vel 9—raro neutra—suffulti. Bracteze foliis minores ob- lique anguste spathulate obtusze muricato-denticulate, elobulatee vel altera parvilobulata; bracteola brevior ovali-lanceolata, ad medium bifida, rima angusta, segmentis acutatis. Perianthia altiuscule emersa anguste obcordato-cuneata, valde compressa, postice obscure unicarinata, supra medium ala pellucida 3-4 cell. lata serrulata crenulatave utrinque marginata, exindeque ad speciem spathulata. Andreecia brevia vel subelongata, ramulum totum sgepius tenentia; brac- teze sub 6-jugee—raro longe numerosiores usque ad 20-jugee. Ab hae certe differt L. microdonta foliis levibus sinuato-complicatis, lobulo subbreviore turgidiore; bracteis distincte labulatis; bracteola solum ad 3-4 bifida; perianthio postice altius carinato, apice parum emarginato, margine solum muriculato spinulosove (nec alato). 9. PRioNo-LEJEUNEA? SCABERULA, Spruce. Hab. Ad. fl. Negro juxta Marabitanas (pl. 2), fl. Uaupés ad Panuré (pl. ¢); in cortice vivo, aliis Lejeuneis immixta. 160 PrRIONO-LEJEUNEA. F -4x-35, lob 125; ¢ py—de; fis 2°15, “15 x°15;. br “bs br ox 95mm, Pusilla pallida prostrata. Caules }-}-pollicares tenues flexuosi pauci- Tame, Folia parum imbricata ad insertionem insigniter constricta (quasi-stipi- tata), ad Jobuli carinam semierecta, dein abrupte divergentia, decurvo- concava oblique late ovata, rotundata, obtusa, vel abrupte subacuta, celluloso-erosa-serrulatave, facie externa asperula, infra medium valde sinuato-complicata—margine supra sinum valde rotundato; lobulus folio 3-plo fere brevior, saccatus oblique ovatus, margine involuto; cellule parvule guttulate, pariete incrassato, nisi pro annulo chloro- phylli angusto pellucida, marginales superioresque acute, cater obtuse conico-prominule. Foliola inferiora dissita, superiora contigua increscentia, foliis duplo breviora, rhombeo-rotunda, paulo ultra } acute bifida, segmentis acutis. Flores dioici: 2 in caule ramove innovando-prolifero terminales. Bractece foliis sublongiores, suberectee obovate concavee, basi lobulo parvo lineari auctee; bracteola obovato-rhomboidea, ad } bifida, segmentis acutis, margine supero angulato: omnes muricato-serrulate. Peri- anthia ... . Andreecia ramulo duplum folium caulinum equante crasse julaceo con- stantia; bracteze foliis duplo minores 5—-8-jugze turgidee. Species dubice affinitatis, dum perianthia incognita restant, inter Priono- Lijeuneas, Trachy-Lejeuncas et Crossoto-Lejeuneas vacillans. 10. Priono-LEJEUNEA? ASPERRIMA, Spruce. Hab. Tauat propre Pard, in trunco putrido, supra alias Lejewneas repens; ex aliis locis sylvee Amazonicee pauca specimina simili modo para- sitantia—semper foeminea steriliaque—carpsl. F 25°18, lob ‘1, ¢ gy 3 f'% ‘4-5 c. longa ; br 5; br'* -40--45 x -2™™., Minuta viridis prostrata, radicellis longis (paucis ad cujusque folioli basin) patentibus v. subfasciatis adfixa ; caules 4 pollicares filiformes vage pauciramei fragiles. Folia dissita subcontiguave, suberecta (axi a caule parum divergente) obovato-rotunda vel, ad lobuli apicem constricta, spathulata, medium versus profunde sinuato-complicata, subconcava, margine toto insig- niter muricato-serrulata, facie asperrima ; lobulus dimidium folium fere «equans, extus rotundatus, saccatus, late semiovatus vel fere hemisphericus, margine fere transverso incurvo apice occulto; celluls minutulz subpellucidée extus alte conico-prominule, pauce versus folii basin subplanee. Foliola minuta bipartita, cruribus conniventibus divergentibusve subu- lato-acuminatis, basi 2-3 cellulas latis, integerrima, levia. Fl. dioici: 9 terminales, innovatione suffulti. Bracteaee magne, foliis duplo longiores, patulee, apice incurvee, oblique obovate ovalesve, subacute, ad medium bifida, vix complicate, asperrima, lobulo parvo apice lanceolato; bracteola parum brevior ovali-ligulata ad 4 acute bifida, segmentis acutis. Plautula pulcherrima, quoad foliola bicrura Drepano-Lejeuneis similis; (op) a PRIONO-LUEJEUNEA. 1 guoad folia valde diversa, Priono-Lejeuneis et Trachy-Lejeuneis magis propingua; forsan pro subgenere proprio habenda. + Prrono-LeJEUNEA SCHIMPERI, Gottsche in hb. Schimp. Hab. Mexico (Hb. Schimper, sine nomine collectoris). Depresso-ceespitosa albicans pellucida, magn. L. microdonte. Caules pollicares procumbentes elongati laxe pinnatim ramosi. Folia subimbricata tenuia tenera oblique semicordato-ovata subfalcata rotundata, rarius solum obtusa, decurvo-concava, e cellulis proni- nulis crenulata, vel caulina fere integerrima; lobulus 3-plo minor ovoideus turgidus; cellule majuscule, inferiores sensim majores, convexulz, ocello nullo. Feliola duplo minora rhombea ad 4 biloba, segmentis subacutis, medio margine utrinque interdum in dentem prominula. F]. dioici: 2 terminales, innovatione (seepe prolifera) suffulti. Bractez foliis 2-plo majores fornicatee, lobulo lobo duplo minore explicato, crenulate; bracteola vix brevior, foliolis subconformis. Perianthia emersa, obcordato-triangularia compressula incurva, subtus late unicarinata (e carinis 2 in unam lanceolatam confluentibus), margine complanato ineequaliter spinulosa setulosave. Andreecia cylindracea; bracteze haud conferte, majuscule, 2-andre. Suspcenus XIX.—CROSSOTO-LEJEUNEA, 8. Plante late depresso-ceespitosee parvule concinne amene-vel albido- virides, siccande tam forma quam colore fere immutatz. Caules sub- pinnati, ramis ascendentibus rectiusculis. Folia parum imbricata, supra plicam brevem divergentia, oblonga v. subovata, apice decurvo tortili acuta acuminatave celluloso-crenu- lata seepeque apice subdenticulata, facie subpapulosa; lobulus parvus inflatus, rarius obsoletus; cellule convexule interdum verruculose, pariete subincrassato, mediz diametro 4,—45™™. Foliola subsquarrose patula dissita foliis 2—(raro 3-) plo breviora cuneata v. suborbiculata, crenulata, ad 4—# bifida, sinu spe lato obtuso, segmentis acutis acuminatisve, nonnunquam utrinque medio uni- dentata. Flores monoici, ramo 2 innovando-prolifero homotropo. _Bractez folia subeequantes, integerrime y. seepius denticulate, complicate parvilo- bulatz; bracteola ovali-lanceolata ad j-} bifida, segmentis acumi- natis, denticulata spinulosave. Perianthia pyriformia subcompressa 4—5-carinata, carinis superne ald inciso-serrata spinulosdve fimbriatis. Amenta ¢ ramulo tenui cauligeno constantia, bracteis 3-6 jugis. Hab. In arborum truncis, tam vivis quam putrescentibus, im ramulis frequens, nunquam in foliis; per totam planitiem, in montibus nullibi visa. Distr. Species sub 6 nobis cognitz omnes neotropice, insulis Antillis, Guiana et Amazonia incole; quarum 3 (duas novas) ipse legi. L. Boryana Mont., antea ins. Dominica lecta, sylve Amazonice plurima loca habitat. TRANS. BOT. SOC. HDIN. VOL, XV. e 162 CrossoTo-LEJEUNEA. A. Monotce. Foliola profunde (ad 3) bifida, segmentis subdivergentibus. 1. C.-L. Boryana. F. semicordato-elliptica valide sinuato-complicata, lobulo 4-plo breviore turgido, cellulis papulosis minute verruculosis scaberula. Folola utrinque valide unidentata. Br. lobulo=}lobum. Per. subcompressa 5-carinata, carinis superne alatis, ala arete inciso- serrata-spinosave. 2. C.-L. paucispina. F. ovato-oblonga recte complicata, lobulo parvo sepe obsoleto, levissima. Foliola utrinque sepius edentata. Br. lobulo lobo 5-plo breviore. Per. magis compressa 4 carinata, carinis apice peranguste alatis spinisque paucis valde deciduis armatis. B. Dioice. Foliola vix ad & bifida, segymentis incurvis. 3. U.-L. torticuspis. F. oblonga subacuta, lobulo parvulo turgido. Foliola oblato-orbiculata. 1. Crossoto-LEJEUNEA Boryana, Mont. Hab. In sylva Amazonica tota, secus fl. Negro pracipue, frequens, in truncis vetustis cariosisve, interdum etiam in radicibus emetsis; in montibus nullibi visa. In insulis Antillis. F 5x ‘25, lob *18, ¢ 75, basales 3; f'* 3x °3, 25x °25; br 6; brie -5x 3; per ‘65 x “4mm, Pusilla viridis vel albido-viricis, dense depresso-czespitosa. Caules 4-1- pollicares prostrati, subpinnatim ramosi, interdum decompositi, ramis assurgentibus. Folia laxe imbricata vel solwia contigua, fragilia, divergentia, oblique semicordato-elliptica, apice sinuato-decurvo tortilive acuta vel suba- cuminulata—inferiora interdum obtusa—celluloso-crenulata, alia superne obsolete denticulata, facie (ad sacculum precipue) papu- losa, margine postico infra medium profundissime sinuata dein com- plicata; lobulus folio 4-plo brevior ovatus saccato-inflatus exciso- acutus raro obsoletus; cellule parvule, pellucide guttulate, con- vexule et minute verruculosee, pariete subincrassato, marginem anticum versus minores, ad et infra medium duplo majores pellu- cidioresque. Foliola foliis vix duplo breviora, subdissita, squarroso-patentia, late cuneata, profunde (ad #) bifida, sinu lato triangulari vel lunulari, laciniis subangustis acuminatis, extrorsum utrinque valide 1-dentata, interdum subcrenulata Flores monoici: @ in ramo seepe brevi, innovando-elongato, raro tamen iterum florifero, terminales. Bractez foliis sublongiores patulze bilobe, lobis acuminulatis inteyerrimis vel denticulatis, antico lanceolato, postico subduplo minore trapezoideo vel obtriangulari ; bracteola appressa ovali-lanceolata ad medium fere bifida, segmen- tis acuminatis, denticulata vel subspinulosa. Perianthia subemersa, pyriformia vel obpyramidata, subecompressa, ex apice subretuso rostellata, 5-carinata, carinis superne late alatis, ala crebre spinosa vel inciso-serrata. Andreecia ramulo brevi, folio collaterali eequilongo, constantia; bractez 3-5-juge, laxiuscule, foliis caulinis subduplo minores. Yar. concinna. Folia magis conferta, ad } lat. imbricata, siccando valide deeurva, magis acuminulata, margine supero haud raro dente une CrossoTo-LEJEUNEA. 163 alterove majusculo aucta. Foliola subimbricata, laciniis extus valide unidentatis—quasi ineequaliter bilobis—margine eroso-subden- ticulata. Perianthia contra minus armata sunt.—Hab. Fl. Uaupés. 2. CrossoTo-LEJEUNEA PAUCISPINA, Spruce, Hab. Fl. Negro, in truncis putridis ad S. Gabriel et riv. Cauapuna; in arborum ramulis ad fl. Bombonasa. F “75x °5; lob 2-08; cay; f' °3x °35, 3 x °25, 25 x 25; br. lob “6 x °25; br ae 253) per 1-0 x “5™™, Tenella viridis, interdum pallida v. subolivacea late repens. Caules 1-2- pollicares debiles pinnati et subbipinnati, seepe valde intricati, ramis inequilongis. Folia parum imbricata subplana oblique ovato-oblonga abrupte acuta acuminulatave rarius minute apiculata, obtusa, rotunda- tave, integerrima vel lenissime celluloso-crenulata apiceque eroso- denticulata, subrecte complicata; lobulus parvus, folio 4-10-plo brevior basi decurrens quadratus (sed e margine incurvo ovoideus) seepe subobsoletus; cellulee mediocres subzequilateree leptodermes, centro pellucidee, ambitu opacee, plane, marginales autem ceteris multo minores interdum subprominule. Foliola dissita, } folium vix equantia late cordato-orbiculata profunde (ad #) bifida, segmentis subdivergentibus acuminatis, utrinque medio margine 1-dentata v. seepissime integerrima. Flores monoici: 2 in ramo brevi, seepe iteratim prolifero (subtrifloro), terminales. Bractez foliis subbreviores oblique lanceolata: margine antico denticulate v. seepe grosse 3-dentatee, lobulo 5-plo breviore rhombeo lingueeformive; bracteola minor oblonga v. ovali-lanceolata ad 4 bifida, segmentis acuminatis. Perianthia foliis longiora obconico-pyriformia sat compressa, apice obcor- dato brevirostria, antice depressa postice bicarinata, margine carinis- que apice subalatis parce spinosa, spinis valde deciduis, Andrecia brevispica cauligena, folio breviora v. sublongiora; bractez 3-6-jugee parvee. Var. rufescens : foliis omnibus distincte lobulatis; perianthiis longioribus subclavatis; andreeciis seepe elongatis.—Ad fl. Bombonasa. A L. Boryana certe differt caule longiore regulariter pinnato ; foliis parvilobulatis ad lobuli apicem vix sinuatis, cellulis leptodermibus; foliolis orbiculatis; perianthiis multo minus cristatis. 3. Crossoro-LEJEUNEA TORTICUSPIS, Spruce, Hab. In fl. Negro sylvis, ad S. Gabriel, aliis hepaticis irrepens; secus riv. Taruma, ad arborum ramulos; pl. ? sola sterilis. F 65x45, 6x °4; lob “1-15; ¢ gy; fl 3x 35, 2x °3; br. lob “5mm, Pallida, siccando rufo-fusca, prostrata. Caules 1-2-pollicares flexuosi pinnatim ramosi, intexti. Folia subimbricata, a basi plicata patente, subdivaricata, oblique late oblonga ovatove-oblonga, interdum basi subsemicordata, apice de- curvo tortili subacuta, raro apiculata v. rotundata (ramea longiora acutioraque), margine fere toto celluloso-crenulata, apicem versus angulata v. subdenticulata; lobulus 4-6-plo brevior decurrenti-sac- 164 CrossoTo-LEJEUNEA. catus turgide ovatus apice inflexo occulto; cellule parvul pellucida cuttulate, pariete parum incrassato, marginales obtuse v. acute pro- minule, ceeterzee subplane. Foliola dissita subsquarrosa foliis 2-3-plo breviora, oblato-orbiculata subcordata, apice incuryo fere ad } bifida, segmentis acutis acuminu- latisve, subcrenulata. Flores dioici: 9 in ramo terminales, innovatione suffulti. Bracteze foliis breviores, erecta, undulato-crispze, ad 4 complicato-bilobe, grosse denticulate v. subspinulosz, lobis lanceolatis subacuminatis sub- zquilongis, inferiore duplo angustiore ; bracteola aquilonga ovali- lanceolata ad 3—-} bifida, segmentis incurvo-tortilibus acuminulatis, denticulata. Forsan a L. tnvoluta G. Syn. Hep. 350, diversa, cui adsunt folia “ ovato- acuminata,” braetearum lobuli breviores truncati, et bracteola utrinque bracteis connata. Species heece dus transitum ad Strepsi-Lejeuneam et Harpa-Lejeuneam prebent. Suspcenus XX.—HARPA-LEJEUNEA, &. Plantee pusille pallide virides, post siccationem difficillime emollite, depresso-ceespitosee. Caules tenues, tenaces tamen nec facile rupti, arete repentes, vage v. subpinnatim ramosi, ramis seepe assurgentibus apice decurvis. Folia laxiuscula seepissime divergentia hamataque v. saltem fornicato- concaya (solum in L. spinulzflora subplana) oblique ovata, longiora quam lata, plus minus acuminata, raro obtusa rotundatave, integer- rima v. celluloso-crenulata serrulatave, leevia, v. cellulis (superioribus precipue) obtuse acuteve prominulis exasperata, lobulo majusculo turgido, rarissime obsoleto, aucta; cellule parvee v. etiam preeminute (go-aym™) seepius leptodermes, subpellucide, in aliis speciebus pauce suprabasales ceeteris majores subvacue ocellum sistentes. Foliola minuta foliis 3 -7-plo minora, vel (in Cardiostipis) cuneata obeor- dato-emarginata bifidave, segmentis rotundatis, vel (in Cyclostipis) rotunda, ad } bifida, segmentis acutis obtusisve—in unica sp. integra. Flores in Cardiostipis omnibus dioici, in Cyclostipis plurimis monoici: 9 in ramo brevi terminales, innovatione plerumque simplice, raro iterum innovante, suffulti, rarissime dichotomiales. Bracteze lobu- late, raro complicate, solum concave carinateque (in Cardiostipis ad carinam alatee) integerrime v. celluloso-crenulate-serrulateve, rarissime denticulate; bracteola angusta biloba—in paucis sublatior et truncato-retusa-emarginatave. Perianthia seepe pro plantula maxima, 2-3-plo longiora quam lata, pler- umque pyriformia, parum compressa, 5-carinata, carinis levibus v. celluloso-scabris, in paucis spinoso-alatis, brevirostria. Andrecia amentulis cauligenis folium proximum subsuperantibus con- stantia, rarissime in ramis terminalia; bracteze seepius paucijugee parve, 1-2-andre, Hab. In sylvis opacis humidis, tam planitiei quam montium, in cortice, rarius in foliis vivis et in truncis putridis, fere constanter aliis hepaticis, Frullaniis et Lejeuneis preecipue, irrepentes. HarpPA-LEJEUNEA. 165 Distr. Per totam sylvam Amazonicam adusque juga Andium subal- pina (alt. 3000™.) obvize, nusquam copiose, e minutie facile praetervise. Species 20 legi (13 Cyclostipas, 5 Cardiostipas, 2 Strepsi-Lejeuneas).— L. ovata Tayl., species Europea unica, idem ac congeneres Austro- Americane, in Frullaniis seepe parasitans—nune autem rupestris—in- venitur. E tota America tropica et australi, ad Cap. Horn usque, aliz plurimze species descripte sunt, se. L. stricta L. et G., L. semiscabrida G., L. Leiboldiana G., L. Raddiana Lindenb., L. Schlimiana G., L. Neesia Mont. ete. Ex Asia tam continentali quam insulari nullam (quantum scio) speciem tenemus; paucas tamen ex insulis Mascarenis, se. L. Deles- sertt Mont., L. conformis Mont., L. trichomanoides M. et N., et ex ins. Auckland 2, nempe L. latitans H. f. et T. et L. Mimosa Tayl. §$ 1. CarptostIPa, foliolis cuneato-obcordatis-bifidisve, angulis segmentisve obtusissimis. Flores omnium dioici. Bractee m omnibus, L. pilitera ex- cepta, ad carinam alate. A. Foliola apice solum retusa emarginatave. 1. H.-L. diaphana. Pallida pellucidissima. F. subimbricata late semi- ovata obtusata valde fornicata; lobulus 2-3-plo brevior turgidis- simus; ¢. parvule subprominule. Foliola foliis 3-4-plo breviora cuneato-rotunda retusa. Br. hamato-incurve acute lobulate vix complicate, ad carinam angustissime alate; bracteola ligulata sub- emarginata. Per. obovato-oblonga rotundata longirostria, alte 5-cari- nata. 2. H.-L. Cinchone. F. subimbricata arcuata semiovalia obtusa suba- eutave valde sinuato-complicata; lobulus fere 3-plo brevior ovato- fusiformis; ¢. parve plane. Foliola foliis 5-plo breviora cuneato- reniformia retuso-emarginata. Rami @ sepe dichotomi. Br. maxime erectz subcomplicate, ad carinam alate, lobo subacuto, lobulo paulo minore seepe emarginato; bracteola obovato-oblonga subtruncata. Per. alte emersa pyriformia argute 5-carinata, carinis peranguste alatis apiceque spinis 2 y. 3 armatis. | H.-L. ovata. F. subimbricata hamata falcato-lanceolata—rarius ovato- lanceolata—sensim acutata subpapulosa, basin versus parvi-ocellata sinuato-complicata; lobulus fere 3-plo brevior turgide ovoideus papu- losus; cellule minutule subopace. Foliola 5-plo minora prelate obcordato-triangularia, sinu lato angulisque obtusis. Br. foliis 4 longiores incurvee complicate ad carinam subalate, lobo lanceolato acuto, lobulo breviore obtuso; bracteola obovato-cuneata fere ad 4 emarginato-bifida, segmentis rotundatis.—Europa. | [ H.-L. parasitica. Est quasi L. ovate forma minor. F. planiora ovato- triangularia acuminata acuta, ocellata, subrecte complicata; lobulus major, + folium excedens, ovato-fusiformis. Foliola is L. ovate fere conformia.—Amer. Austr. ad Cap. Horn]. 3. H.-L. ancistrodes. Pellucida flaccida. F. imbricata falcato-divergentia ovali-lanceolata acuminata acuta, acumine uncinato, obscure crenu- lata, ocellata, valde sinuato-complicata; lobulus 4 folium fere eequans anguste ovoideus ; cellule parvule. Foliola foliis 2$-plo minora late obcordato-cuneata carinata, sinu lunulari, angulis obtusatis. Fl. @ dichotomiales. Br. foliis fere duplo longiores incurve com- plicate, ad carinam anguste alate, lobo acuminato, lobulo minore obtusato y. apice bifido; bracteola basi utrinque cum bracteis con- 166 HaArpPA-LEJEUNEA. nata, cuneato-oblonga ad 1—} acute bifida, segmentis obtusatis. Per. vix emersa obovata alte 5-carinata apice depresso brevirostria, carinis parcissime papulosis. B. Foliola ad } usque biloba. 4. H.-L. tenuicuspis. Viridis vel coerulescens. F. dissita hamata diver- gentia, valde oblique ovato-lanceolata cuspidato-acuminata, vix sub- crenulata, ocellata, valde sinuato-complcata ; lobulus plus 3-plo brevior turaidus raro obsoletus; cell. minutule subprominule. Foliola minuta, f. 8-plo breviora, late obovata subacute biloba, lobis rotundatis divergentibus. Br. parum incurvee foliis 4 majores com- plicate, ad carinam obscure alate acuminate, lobulo obovato- oblongo exciso-truncato; bracteola obovato- lanceolata emarginato-biloba, lobis rotundatis. . 5. H.-L. pilifera. Pallida pellucida. F. subimbricata planiora oblique ovata, ex apice acuto piliformi-cuspidata, ocellata, valde sinuato-com- plicata; lobulus 4-plo brevior saccatus; cell. minute. Foliola foliis 6-plo minora subrotunda subacute biloba, lobis rotundatis. Br. foliis } majores subincurvee complicate exalatie, lobo ovali cuspidato medio margine antico unidentato, lobulo minore apice dentato; bracteola ligulato- oblonga, ad 4 bifida, sinu segmentisque acutis, subdenticu- lata. 32. Cyctostipa, foliolis suborbiculatis, ad $ bifidis, segmentis acutis rarius obtusis; in unica sp. integris. Br. exalate. A. Foliola perfecte integra. 6. H.-L. holostipa. Dioica, minuta. F. subdissita fere erecta obovata fornicato-concava; lobulus magnus (=4 folii) turgidus fere hemi- sphzericus; cellule preminutee,. Foliola 3-4-plo minora 8-10. lata. Bracteola obcordato-orbiculata cochleata. Per. subturbinata turgida acute 5-carinata leevissima, B. Foliola usque (v. fere) ad medium bifida. Fl. dioict. Per. levia inermiaque. H.-L. megalantha. Minuta. F. distantia suberecta oblonga rotundata v. subacuta, celluloso-crenulata, subsinuato- -complicata; lobulus =4 folii turgide saccatus; ¢. parve subplanse, marginales prominule. Foliola 4- -plo minora subrotunda segmentis acutis. Br. foliis duplo majores, lobis obovatis subapiculatis subdenticulatis, postico paulo minore; bracteola spatulato-ligulata ad } bifida, segmentis acuminu- latis, utrinque l-dentata. Per. maxima obovata turgida alte 5- carinata leevia. 8. H.-L. galeata. ¥. caduca subimbricata tenerrima galeato-concava oblique semicordato-ovata obtusa raro subacuta valde sinuato-com- plicata; lobulus sub 4-plo brevior inflatus; ec. parvulee subplane. Br. foliis 4 breviores fragiles, lobo late oblong integerrimo, lobulo parvo ; bracteola lanceolato- oblonga ad 4 bifida, Per, alte emersa obconico-pyriformia, supra medium argute 5-carinata. Amenta d minuta lateralia. b. Fl. monoict. Perianthii carine e cellulis prominulis tuberculose muriculateve, in aliis speciebus spinis armate. 9. H.-L. erectifolia. Minuta. F. subcontigua erecta oblonga basi apice- que rotundata recte complicata; lobulus = 4 folii inflatirs apiculatus; 10. Ve 13. 14. 15. 16. WES HaArRpPA-LEJEUNEA. 167 cellule preminute convexule. Foliola 3-plo minora ovali-orbicu- lata, segmentis subacutis. Br. foliis majores, lobo obovato; bracteola obovata breviter bifida, segmentis obtusis. Per. maxima pyriformia compressa 5-carinata levia. Andr. terminalia. H.-L. subspatulata. F. subimbricata fornicata, a basi angusta spatu- lata rotundata obtusave crenulata, valide sinuato-complicata; lobu- lus 3-plo brevior saccatus ; c. mediocres, marginalibus exceptis sub- plane. Foliola 6-plo minora, segmentis subacutis. Br. foliis 4 longiores eroso-serrulatz, lobo semiobovato; bracteola late oblonga ad ¢ bifida. Per. subimmersa, pyriformi-oblonga superne 5-carinata, carinis papulosis apice prominulis. H.-L. gomphocalyx. F. divergentia late semiovata abrupte acuta crenulata sinuato-complicata; lobulus 4-5-plo minor saccatus: c. parve, subapicales marginalesque prominule, cetere plane. Br. foliis minores, lobo lanceolato acuto ; bracteola lineari-cuneata ad 4 bifida, segmentis subacutis. Per. alte emersa lineari-prismatica com- pressa 5-carinata, carinis crebre papillosis. H.-L. trachygona. F. ovata subacuminata subcrenulata sinuato- complicata; lobulus 4-plo brevior inflatus, foliorum inferiorum sub- obsoletus; c. parve, marginalibus exceptis, subplanz. Foliola 5-plo minora obovato-rotunda, segmentis subobtusis. Br. foliis subminores, lobo lanceolato; bracteola cuneato-lanceolata ad } bifida, segmentis subobtusis. Per. alte emersa pyriformia compressula 5-carinata, carinis compressis crebre papillosis muriculatisve. H.-L. asprella. F. prelate semiovata acuta, facie margineque muri- culata, valde sinuato-complicata; lobulus 4-plo brevior inflatus; cellule parvulz conico-prominule. Foliola 6-7-plo minora subro- tunda, segmentis subacutis. Br. foliis subminores vix complicate, lobo obovato-lanceolato; bractecla longe cuneata bifida. Per. alte emersa clavato-pyriformia tota facie supra medium crebre acute muriculata. H.-L. diversicuspis. F. supra lobulum erectum hemisphericum 2-4- plo breviorem (ad ramos interdum obsoletum) divaricata late ovata obtusata raro acuta, pulchre reticulata submarginata, supra medium erenulata; c. parve pellucide. Foliola 4-plo minora, segmentis acutis. Br. foliis equilongz, lobo ovali acuto; bracteola angusta cuneato-lanceolata ad 4 bifida, segmentis acutis. Per. emersa pyri- formia compressula, carinis rudimentarie alatis inequaliter crenu- latis. H.-L. paratropa. FF. divergentia late ovata abrupte acuminata acuta vix crenulata valde sinuato-complicata; lobulus 3-plo brevior decurrens saccatus; ¢c. subparve. Foliola 4-plo breviora cuneato- obovata vix ad 4 bifida, segmentis obtusis. Br. foliis minores, lobo obovato-lanceolato acuto; bracteola cuneato-ligulata vix ad 4 bifida, segmentis subobtusis. Per. alte emersa clavata alte carinata, earinis tuberculosis apice paucispinulosis. H.-L. spinuliflora. F. longe distantia subplana oblonga sepius ro- tundata, obsolete lobulata; c. subparve plane. Foliola foliis €-7- plo minora oblonga, segmentis late subulatis. Br. foliis subequales, lobo obovato-lanceolato; bracteola oblongo-ligulata breviter bifida, segmentis acutis. Per. emersa pyriformia subcompressa, carinis spinis hamatis armatis. H.-L. acanthogona. F. e lobuli parvi (folio 6-plo brevioris) saccati apice divergentia, late semieordato-ovata, obtusa subacutave; 168 Harpa-LEJEUNEA. lobulus 6-plo brevior v. obsoletus; ce. mediz mediocres, omnes subplane. Foliola 7-plo minora, segmentis subacutis. Bracteze foliis 2-plo minores vix complicate, lobo ovali acuto; brac- teola anguste oblonga vix ad 4 bifida. Per. alte emersa cylindrico- oblonga compressula supra medium 5-carinata, carinis spinoso- cristatis. 18. H.-L. blepharogona. FF. patula late semicordato-ovata rotundata sinuato-complheata; lobulus plus 3-plo brevior semiovato-rhombeus; c. parve subplanz. Foliola 3-plo minora ovato-orbiculata, seg- mentis falcato-lanceolatis subobtusis. Br. foliis subminores sub- denticulatz, lobo obovato rotundato ; bracteola cuneato-lanceolata ad + bifida, segmentis subacutis. Per. emersa obovata turgida pre- alte 5-carinata, carinis ciliato-spinosis. § 3. SrrepsI-LEJEUNEA, fere pro subgenere peculiari habenda, a ceteris Harpa-Lejeuneis differt habitu robustiore ; colore flavido ; folvis apice acu- minato decurvo-tortilt subdenticulatis, cellulis validioribus, pariete insigniter incrassato ; foliolis multo majoribus, dimidium folium equantibus; andreciis conspicuis, bracteis magnis, sepe plurijugis. Flores monoici. 19. H.-L. inflexa. F. pellucida, c. mediis—3,™". Foliola sinu depresso, segmentis subacutis. Amenta ¢ longispica. 20. H.-L. Gabrielensis. F. opaca, c. gs. Foliola plana, segmentis obtu- satis. Amenta ¢ brevispica. ae 1, Harpa-LEJEUNEA DIAPHANA, Spruce. Hab. Ad fluvium Bombonasa, alt. 400™, in folio vivo, cum Frullania Beyrichiana. F 55x °4,°4x°3; lob 15; ep,5 f@°18x'13; br -75x 55; br* box 2: per fo x sum. Pusilla pallida pellucidissima reptans. Caules } poll. longi vage ramosi, ramis superne sensim parvifoliis. Folia subimbricata—ramulorum seepe dissita—late semiovata obtusata insigniter fornicata; lobulus triplo (foliorum rameorum vix duplo) brevior ovoideus turgidissimus, neque ad plicam deorsum saccatus vero iterum inflexus loboque appressus; cellule parvule equilatere leptodermes convexul valde diaphane, chlorophyllo parcissimo. Foliola dissita, foliis caulinis 3-4-plo breviora, appressa, cuneato-rotunda retusa. Flores dioici: Q terminales, innovatione-suffulti. Bracteve foliis dimidio longiores falcato-decurvee subacutz, carinatee—vix complicatee—cari- nayue angustissime alate; lobo oblique ovali; lobulo vix duplo breviore, 3-5-plo angustiore, tota fere longitudine lobo connato, apice solo in dentem brevem extante; bracteola brevior angusta ligu- lata, apice recurvo retusa emarginatave. ; Perianthia vix emersa pellucida obovato-oblonga subcompressa alte 5-cari- nata, ex apice rotundato longius rostellata. Pulchra species cum nulla alia confundenda; foliolorum forma, necnon bracteis alato-carinatis, cam Harpa-Lejeuneis Cardiostipis plane collo- canda. HARPA-LEJEUNEA. 169 2. Harpa-LEesEuNEA CincHon#, Nees. Syn. Hep. 342. Hab. In M. Tunguragua, alt. 2000-2500m., corticola. In cortice Peru- viano (Pauckert in hb. Hampe). F ‘4x28 (sine lobulo) x ‘35 (cum lob.) ; lob 15; ¢ dy; f™ 08x12; br (lob) *8 x °4; br'* 5x °35 per 1:2 x -5™™, Pusilla pallida dense stratificata subcaespitosaque. Caules pollicares, basi subdenudata repentes, dein arcuato-assurgentes, foliosi, vage ramosi seepe decompositi, ramis tamen paucis, dissitis, aliis dichotomis. 1 olia laxe imbricata, basi assurgentia, apice devexa, sacculo basali ademto semiovalia v. semicircularia, subacuta vel seepius obtusa, margine antico rotundato basi semicordato, postico ab apice fere ad % long. usque recto horizontali, dein valde sinuato et in sacculum ovato- fusiformem, apice brevi (lobulo vero) acuto occulto patenteve, con- voluto ; cellule parvee pellucide guttulate subincrassate plane, chlorophyllo in sieco annulari. Foliola distantia, foliis 5-plo minora, subplana, late cuneato-obovata reniformiave (latiora quam longa) late retuso-emarginata, angulis rotundatis. Flores dioici: in ramorum dichotomiis, raro innovatione solitaria suf- fulti. Bracteze maxims, foliis 2-plo majores, erect, dimudiato- ovales, altera acuta altera obtusa, ad $ complicato-bilobe, ad plicam anguste alate, lobulo } breviore angustioreque rotundato szepe mar- ginato; bracteola bracteis longe brevior obovato-oblonga rotundato- truncata repandula subplana. Perianthia emersa, f. caulinis 3-plo longiora pyriformia, v. fusiformia (basi attenuata), ab ipsa basi argute pentagona—vel potius pentap- tera—angulis alé angust&é 2. crass limbatis, apiceque spinis 2 v. 3 subulatis recurvulis (cornua simulantibus) armatis. Calyptra magna tenuis. Planta pulchella, ex habitu et floribus dichotomialibus ad Hygro- Lejeuneam catinuliferam plane accedens, ceteris caracteribus valde diversa. 3. HAarpA-LEJEUNEA ANCISTRODES, Spruce. (Tas. V.) Hab. Quisapincha, prope Ambato; etiam super montem Tunguragua, alt. 3000™., in arboribus vetustis, supra Lejeuneam catinuliferam repeus. Wa xcco0, 100 “2, ¢ A> f'* 2x23) br lob “9x5; br “Tox; per ee as Pusilla pallide viridis fragilis flaccida; caules {-pollicares prostrati pin- natim subramosi, ramis ¢ furcatis. Folia tenerrima pellucida imbricata, falcato-divergentia, oblique ovali- lanceolata acuminata acuta, acumine decuryo-uncinato, caulem antice late transeuntia, integerrima vix obscure celluloso-crenulata, valde sinuato-complicata; lobulus $ folium fere equans, anguste ovatus inflatus acutus, apice tamen seepissime involuto; cellule parvule leptodermes, chlorophyllo parco in annulum congesto, paucee (4-6) basin versus duplo majores vacue in ocellum plerumque aggregate. Foliola subcontigua dissitave, foliis 2}-plo breviora, late obcordato-cuneata, subcarinata, sinu lato lunulari, angulis obtusatis. TRANS. BOT. SOC, EDIN. VOL, XV. Mi 170 HARPA-LEJEUNEA. Fl. dioici: 2 terminales, innovationibus 2 oppositis suffulti. Bractee foliis fere duplo longiores, patule decurvee, paulo ultra medium complicato-bilobee, ad carinam_peranguste alate, ad sinum devexe; lobi antici oblique lanceolati subacuminati acuti subintegerrimi; lobuli paulo breviores, sat angustiores, rhomboidei obtusati, alter sublatior seepe bilobus; bracteola paulo brevior, bast utrinque connata, cuneato-oblonga ab apice ad 1-4 alt. acute emarginato- biloba, seg- mentis obtusatis, Perianthia vix emersa, obovata, alte 5-carinata, apice depresso brevi- rostellata, carinis apice rotundato-prominulis papillaque una alterave vix scaberulis. Andrecia cauligena, f. caulino equilonga, compresso-globosa ; bracteze 2-3-jugee majusculee. L. stricta L. et G. (Syn. Hep. 756) nostra certe proxima, differre videtur caule stricto} foliis minus decurvis ovatis acuminatis; foliolis minutis; perianthiis brevioribus.—L. ovata Tayl. (a qua vix distincta videtur L. stricta) a L. uncinata diversa est foliis validicribus opacis, apice breviore vix acuminato, lobulo minore sed turgidiore, cellulis dimidio minoribus, ocello minore (2 cell. constante); foliolis duplo minoribus oblatis; bracteis conformibus duplo fere minoribus, basi utrinque cum bracteola connatis; innovatione floris feeminei unilaterali. 4, HARPA-LEJEUNEA TENUICUSPIS, Spruce. Hab. In arborum truncis fl. Negro inundatis, seepe cum aliis Lejewneis immixta: pl. Q sterilis. FAx% 2+ lob 125; © dys f °05%°07 3 br. 0b 6x25 5 bre 4 eee Pusilla, viridis, eee ecerulescens, siccando sublurida. Caules 4- pollicares, vage ramosi, ramis seepe elongatis flaccidis. Folia dissita, patula, apice insigniter hamato- ‘deeurva, valde oblique ovato- lanceolata cuspidato- -acuminata, cuspide sub 5 cell. longa, le. (basi 2c.) lata, repanda, integerrima v. parum celluloso-crenulata, basin versus (sub lobuli margine) ocellata, a basi (cum lobulo) saccata extus valde convexa semierecta, abrupte divergentia; lobulus plus 3-plo brevior late semiovoideus turgidus, margine inflexo parum obliquo, apice acuto occulto, raro obsoletus; cellule minutule vix paulo incrassatie subprominulee ambitu opacie, ocelli 2 v. 3c. cellule ceteris duplo majores vacue. Foliola minuta foliis 8-plo breviora, oblato-obovata, ad 4 fere subacute biloba, lobis divergentibus rotundatis. Flores dioici: @ in ramo seepissime perbrevi—raro longiore—terminales. innovatione unilaterali brevi simplice suffulti. Bracteze erecto-patule, subplane (parum incurvee) ad } complicato-bilobee, celluloso-crenu- late, obiter subdenticulatee, ad carinam acutam vix rudimentarie alatee, lobo longe oblique lanceolato subacuminato raro subcuspidato acuto, lobulo fere duplo breviore obovato-oblongo exciso-truncato ; bracteola sat brevior, obovato-lanceolata emarginato- biloba, sinu sub- acuto, apicibus rotundatis. Harpa-LEJEUNEA PILIFERA, Spruce. Hab. In sylva Amazonica, hic illic in cortice, rara vel ob minutie preeter- visa, semper aliis hepaticis, Lejewneis preecipue, irrepens : Caript prope HARPA-LEJEUNEA. 171 Parad; 8S. Carlos del Rio Negro; Marona-yacu prope Tarapoto, alt. 600™,, in Bryo-Lejeunea diffusa. F 4X °2, cuspis "1-125, lob *1, ¢ gy; f* 07 x:07; br. lobus ‘6 x -3™™. 60 % Pusilla pallida pellucida, Caules }-pollicares, vage vel subpinnatim ramosi, arcte repentes. Folia vix ad lobulum usque imbricata, subplana vel decurva, oblique ovata, basi lata vix semicordata, ex apice acuto longe_piliformi- cuspidata (cuspide 7 v. 8 cellulas longa) supra basin valide sinuato- complicata; lobulus 4-plo brevior, ovatus saccatus, margine apiceque involutus; cellule minutulee subconformes leptodermes, fere vacuz, 2 v. 3 inferiores (sub lobuli margine) czeteris duplo majores ocellum sistentes. Foliola distantia minuta, foliis 6-plo minora, subrotunda, medio 6 cellulas lata, apice subacute bifida, segmentis rotundatis. Flores dioici: @ in ramo brevi terminales, cum innovatione simplice. Bractez foliis dimidio majores, seepe incurvee, ad 4 complicato- bilobxe ; lobo antico oblique ovali plus minus cuspidato, medio margine antico sepius unidentato, rarius etiam subdenticulato ; lobulo duplo breviore angustioreque, apice vel spinuloso-tridentato vel acuminato et varie subdentato; bracteola brevior ligulato-oblonga ad } bifida, sinu segmentisque acutis, margine repando vel sub- denticulato. L. L. Delessertii Mont., Dominicensis Mont., Owaihiensis Gottsch. et cuspidata Gottsch., omnes ut videretur nostre aftines, foliola habent multo majora, in L. cuspidata etiam acutiloba. 6. Harpa-LEJEUNEA HOLOSTIPA, Spruce. Hab. Pard, in cortice, supra Frullaniam ewxilem Tayl. aliasque hepaticas repens; etiam ad Caripi aliisque locis flam. Amazonum ostiis prox- imis. F 3x2, 25x18; lob 125; c¢ dy; fl 08x 08; br 4x °3; br! -25 x25; mer O° Xs, Minuta, viridis, laxe effusa. Caules }~}-pollicares tenues flexuosi, in matrice paralleli, subsimplices v. parce vageque ramosi. Folia subdissita fere erecta (axi 4 caule parum divergente) assurgentia fornicato-concava obovata, rotundata, dimidio inferiore toto cum lobulo in sacculum magnum valde turgidum (fere hemisphzricum), margine involutum, convoluta, dimidio superiore (lobulo ademto) fere orbiculata, cochleata; cellule preminute leptodermes con- vexulee, ambitu opacee, centro pellucide. Foliola foliis 3-4-plo minora, distantia, rotunda integra, 8-10 cellulas lata. Flores dioici: @ in ramo terminales, innovatione simplice suffulti. Bractez foliis majores obovato-rotundze concave, ad ? bifidee, lobulo parvo lineari explanato; bracteola bracteis brevior obcordato-orbicu- lata cochleato-concaya. Perianthia emersa obovata subturbinata, vix compressa, in rostellum sub- sensim angustata, acute 5-carinata, leevissima. Andrcecia in ramis plerumque terminalia, raro basilaria; bracteze pauci- (sub 4-) juge, foliis caulinis imo majores, oblique ovato-rotund com- plicate turgidee apice subeequilobe. 172 HARPA-LEJEUNEA. Foliolis perfecte integris a ceteris omnibus sui subgeneris distinctis- sima.—Brachio-Lejeunee laxifolie, Tayl. ex longinquo subaftinis—Melius forsan, cum H. L. erectifolia et megalantha, inter Micro-Lejewneas mili- taverit. Harpa-LEJEUNEA MEGALANTHA, Spruce. Hab. S. Carlos del Rio Negro, in arbore vetusta, supra alias Lejewneas repens. F-25915, -25x:195, lob °125, ¢ 3; f™ *05; br (expluata) OK 4s br’ -4x°2 5 per 6 x ‘35, °55 x ‘25™™, Minuta pallida ; caules }-pollicares, filiformes, vage ramosi, implexi. Folia longe distantia suberecta (axi a caule "paulo divergente) oblonga obovatave rotundata, obtusa, vel abrupte acuta, basi rotundat fo-saccata, margine celluloso-crenata, medio subsinuato-complicata ; lobulus i dimidium folium) fere hemisphzericus, margine incurvo tamen suboliquo, turgidus, apice plerumque occulto, vel. conspicuo et exciso; cellule subconformes, parvie, pellucide, marginales papuloso-promi- nulz. Folia ramea nune elobulata, nune (in ramis elongatis) ad sacculum basilarem solum fere radacta. Foliola minuta folio 5-plo minora, caule haud latiora, subrotunda, ad medium subacute bifida. Flores dioici: Q terminales, innovatione (plerumque simplice) suffulti; bracteze maxim, foliis duplo majores, divergentes, obovate sub- apiculato- -acute et sepius hic illie angulato-denticulate, breviter (ad 4) bifidee parum complicates, lobulo “plus minus breviore angus- re jue; bracteola spathulato-ligulata ad 7 solum bifida, segmentis patulis acuminulato-acutis, saepe utringue j-dentata, Perianthia magna, foliis plus 2-plo majora, pellucida fuscidula, pyri- formia, vix compressa, alte 5-carinata, carinis sublzevissimis, rostello obsoleto. Aflinis L. erectifolie cui tamen sunt flores monoici; folia exacte erecta, cellulis preminutis opacis; foliola dimidio majora; bractearum minorum lobus obtusus integerrimus ; bracteola obovata obtusiloba integerrima, et perianthia sat compressa. 8. Harpa-LEJEUNEA GALEATA, Spruce. Hab. In M. Campana Andium Peruvianorum, ad saxa, alt. 1200™; etiam in M. Chimborazo, ad corticem. F6 x5, 5x55 lob 183 ¢ gy; f* 15; br 4; per 13x°b, xe Poses e pallide viridi olivacea, plagas latas densas efformans. Caules 1-pollicares flexuosi tenaces pinnatim ramosi subprostrati valde Pplece basin versus, e foliis caducis v. eorum Icbulis solis relictis, plus minus denudati. Folia subimbricata assurgentia—caulina seepe squarrosa—basi angusta subtransversé inserta, unde facile soluta, fornicato-concava v, potius galeata, tenerrima, pellucida; valde oblique semicordato-ovata, apice deflexo obtusa rotundatave, raro subac muta, antice caulem late trans- euntia, basi postica valde sinuato- complicata, lobulo sub 4-plo bre vir ovato inflato, dente apicali conspicuo; f. ramea caulinis seepe 2-plo minora; cellule parvulee subaequimagne subplane. HaArpa-LEJEUNEA. 173 Foliola foliis fere 4-plo minora, subrotunda, vix ad 4 usque bifida, seg- - mentis acutis subobtusisve. Flores dioici: 2 in ramo brevissimo terminales, innovatione brevi sim- plice suffulti. Bracteze foliis $ breviores, fragiles, late oblonge, lobulo parvo plano; bracteola lanceolato-oblonga ad 4 bifida. Perianthia alte emersa, foliis duplo longiora, obconico-pyriformia—demum elongata, clavata, quasi-stipitata—brevirostellata, supra medium alte argute 6-carinata, carinis complanatis leevissimis. Andrecia cauligena, folium collaterale subeequantia, bracteis 3-4-jugis. Plantula singularis, e foliis arcuatis galeatis, basi valde constrictis ibidemque seepe ad sacculum solum redactis, unde spatulata viderentur. 9. Harpa-LEJEUNEA ERECTIFOLIA, Spruce. Hab. F\. Uaupés, in arborum ramis, supra Archi-Lejeuneam porelloidem repens ; etiam ad fl. Negro in Radula pseudostachya. F -25 x -125, lob -125, c 3; f'* 075; br -325; per “6 x °35, “75 x 35mm, Minuta pallide viridis prostrata Caules }-pollicares tenuissimi vage vel pinnatim ramosi. Folia contigua vel subdissita, fere longitudinaliter inserta, erecta (axi majore cauli parallela) oblonga, utroque fine rotundata (margine postico antico duplo fere longiore), recte complicato-biloba, ad cari- nam moniliato-papulosa; lobulus cztero folio subzequilatus, duplo brevior, inflatus, margine involuto, apice exciso-apiculato porrecto v. occulto; cellule minutissimz conformes opacee leptodermes guttu- latze papuloso-prominule. Foliola foliis triplo minora, valde diaphana, ovali-orbiculata, ad 4 bifida, sinu segmentisque subacutis. Flores monoici: @ in ramo brevi terminales, innovatione suffulti. Bractez foliis majores obovatze obtuse, lobulo duplo breviore line- ari-rhomboideo acuto; bracteola obovata breviter bifida, segmentis obtusis. Perianthia pro plantula maxima, foliis triplo longiora, pyriformia subcompressa, postice bicarinata, antice apicem versus leviter cari- nulata, carinis repandis levibus—demum (fructu emisso) basi elon- gata, subinfundibulata. Calyptra rufa ovali-fusiformis stipitata. Capsula globosa pallida. Andreecia in ramis terminalia, spicata; bracteze 3-5-juge subrotunde, cellulis prominulis scabree, submuriculate. Plantula facile distincta, affinitate inter Harpa-Lejeuneas et Micro- Lejeuneas media, melius forsan cum his collocata. Facie et magnitudine L. holostipa simillima est, cui tamen adsunt foliola perfecte integra, folia obovata, perianthia alte 5-carinata, etc. Planta Negrensis lobulum apiculo longiore recto donatum habet. 10. HArpA-LEJEUNEA SUBSPATHULATA, Spruce. Hab. In Andium Quitensium radicibus, juxta fluv. Bombonasa, in cortice. F -45 x°3 x ‘2, lob 18, ¢ 35; f* 075; br -65x-4; br -35x°3; per "5X 25mm, Pusilla albescens, siccando fuscidula. Caules semipollicares repentes 174 HARPA-LEJEUNEA. subpinnatim ramosi, ramis confertis assurgenti-arcuatis subeespi- tosis. Folia subimbricata assurgentia, dein fornicato-decurva, ex angusta basi obovata spathulatave, rotundata obtusatave, celluloso - crenulata (varius-serrulata), infra medium valide sinuato-complicata; lobulus folio vix triplo brevior semiovatus saccatus, margine obliquo invo- lato, apice abscondito; cellule mediocres subpellucide, inferiores sensim majores longioresque, submarginales sole in conum obtusum acutumve prominule, Foliola foliis 6-plo breviora, subrotunda, ad } bifida, sinu segmentisque subacutis. Flores monoici: ? in ramo perbrevi—raro longiore, vel in ipso caule terminales, innovatione simplice suffulti. Bracteze foliis caulinis dimidio majores, ab apice ad ? alt. bilobee, complicate vel sepe non, muricato-erosule, lobo semiobovato vel semispathulato acuto vel obtuso, lobulo angustiusculo lanceolato; bracteola duplo fere minor, late oblonga, ad 4 bifida, sinu latiusculo subacuto, Perianthia subimmersa, anguste pyriformi-oblonga, supra medium 5- carinata, carinis papuloso-cristulatis, apice umbonato-prominulis— quasi rudimentarie cornutis. Amenta ¢ ramulo foliis caulinis longiore constantia; bracteze plerumque 5-jugee, raro pluri-(10—20-) jugie. Foliis paulo densioribus, parum divergentibus, seepe assurgenti-subse- cundis, valde concavis, rotundatis obtusatisve, crenulatis; bracteis maxi- mis; perianthiis parvis subimmersis; androeeciis longispicis; etc., a L. tenuistipula plerisque aliis ejusdem subgeneris differt. 11. Harpa-LEJEUNEA GOMPHOCALYX, Spruce. Hab. Ad fluvium Negro, supra fl. Casiquiart ostia, in cortice. F 5x °4,°4x 35, lob. 1, ¢ po—gy; f *08x.08; br -4; br’ 35x15; per 1:0 x 3mm, Albida vel pallide viridis, siccando fuscescens, flaccida prostrata. Caules semipollicares teneri ineequaliter pinnati vel subbipinnati, ramis as- surgentibus arcuatis. Folia paululum imbricata, supra plicam basalem semiverticalem diver- geutia, valde decurvo-fornicata, late oblique semiovata abrupte acuta, margine toto celluloso-creuulata; lobulus folio 4-5-plo minor, de- currens, inflatus, ad plicam convexus, margine (ex involutione) transverso, apice occulto; cellule parvee subsequilatere pellucida, marginales obtuse prominul, caeterse subplanie, vel pauce superi- ores convexulze, ocello nullo. Foliola minuta, foliis 5-6-plo breviora, rotunda cuneatove-rotunda, ad medium bifida, segmentis obtusis. Flores monoici: ¢ in ramulo brevi terminales, innovatione simplice suffulti. Bractece foliis minores appressee ultra medium bifid, lobo oblique lanceolato acuto, lobulo lineari apice subulato; bracteola lineari-cuneata ad 4 bifida, segmentis acutis obtusisve. Perianthia alte emersa, foliis caulinis duplo longiora, lineari-prismatica vel subclavata rotundato-truncata brevirostria, compressa 5-carinata, carinis crebre papillosis. Andreecia ramulo brevi, folio caulino equilongo, constantia; bractese 3—- 4-juge. HARPA-LEJEUNEA, nA Ab hae distat Harpa-L. trachygona textura firmiore (minime flaccida) ; foliis caulinis subelobulatis, rameis subacuminatis, minus distincte crenu- latis; perianthiis brevioribus (pyriformibus nec claviformibus), carinis altioribus asperrimis. 12. Harpa-LEJEUNEA TRACHYGONA, Spruce. Hab. In monte Pingullu, supra pagum Tavalosos Andium Peruvianorum, in cortice. ; F 4x °3, ‘43 x °35, lob -1 v. 0,¢ Ay; f'@ 08x :08; br. lob 35x :15; br@ one HeT, (OO) Xx OL. Pusilla czespitoso-procumbens, ex olivaceo-viridi rufula; caules }-polli- cares flexuosi Ineequaliter pinnati, ramis seepe arcuatis. Folia parum imbricata late patula apice decurvula (ramorum fornicata) oblique ovata acuta subacuminatave repandula celluloso-subcrenu- lata, caulina basi obscurissime complicata (vel non), ramea caulinaque superiora plerumque abrupte sinuato-complicata; lobulus folio 3—4- plo brevior subovatus extus rotundatus; cellule subconformes parvee pellucidee leptodermes, Foliola distantia, minuta, foliis 5-plo minora obovato-rotunda fere ad medium bifida, segmentis subobtusis. Flores monoici: @ in ramo perbrevi terminales, innovatione simplice suffulti. Bracteze foliis subminores, appressee, ad medium bifide, acute, lobo lanceolato, lobulo parvo lineari-lanceolato; bracteola cuneato-lanceolata, 3-plo longior quam lata, ad } acute bifida, seg- mentis acutis. Perianthia alte emersa, foliis dimidio majora, pyriformia, compressula, pellucida, brevi-rostellata, 5-carinata, carinis compressis crebre muri- culatis papillosisve. Amenta ¢ cauligena, folio caulino equilonga; bractez 4-jugee, mediocres, 1-2-andre. 13. HARPA-LEJEUNEA ASPRELLA, Spruce. (Tas. V.) Hab. In M. Guayrapurina, Andium Peruvie super truncos putridos. BF -4X% 35; lob 1; ¢ 45; fi 06; br 385; per “6 x *25™™, Pusilla, albescens, late dense czespitosa. Caudex repens matrici arcte adfixus, caules 1—4-poll. fastigiato-caespitosos arcuantes parum ramosos, raro subpinnatos, edens. Folia subimbricata valde hamato-decurva a basi angusta prelate semi- ovata acuta, facie margineque celluloso-echinata-denticulataque, basin versus valde sinuato-complicata, lobulo 4-plo breviore ovato inflato; cellule parvule zequilateree, omnes fere insigniter conico-prominule, marginales anticze sensim minores, subbasales submajores planio- resque. Foliola minuta foliis 6-7-plo breviora patula subrotunda ad 4 bifida sub- acuta. Flores monoici: @ terminales, cum innovatione. LBractez foliis sub- minores bilobe, raro complicate, lobo obovato-lanceolato, lobulo parvo lineari; bracteola elongato-cuneata bifida. Perianthia alte emersa, f. caulinis dimidio longiora, anguste clavato- pyriformia, seepe subfusiformia, i.e. apicem versus in rostellum brevem sensim attenuata, tota facie supra medium, ad carinas precipue, crebre acute muriculata. 176 HARPA-LEJEUNEA. Andreecia subcylindrica tenuia ; bracteze 3-6-jugze ; antheridia solitaria binave (altero minore). Pulchra species, L. subspatulate §. affinis, valde distincta tamen, pree- cipue perianthiis ex involucro parvo alte emersis, foliisque asperrimis.— A L. tenuistipula L. et G. certe distare videtur foliis facie fere tota echinatis, cellulis submajoribus; foliolis preeminutis; perianthiis angus- tioribus valde exasperatis. L. semiscabrida G. in Hep. N.-Granat. 60, habet folia subapiculata, solum dimidio supero echinata; foliola obcuneata extus utrinque unidentata, 14. Harpa-LEJEUNEA DIVERSICUSPIS, Spruce. Hab. Ad fluvii Negro cataractas, in cortice, cum aliis Lejewnets intricata. F -3x°3, °3x°‘25, lob ‘08-12, ¢ 4-35; foliola -07—08; br 3; br'4 25 x 125 ; per 45x25, +5 x 33mm, Minuta pallida, siecando fuscidula, dense czespitoso-repens. Caules 3-} pollicis longi tenues fragiles subramosi, ramis Inzequilongis. Folia parum imbricata valde obliqua, a plica basali suberecté divergentia, late ovata obtusa vel abrupte acuta, raro leviter acuminulata, inter- dum rotundata, repanda, superne celluloso-crenulata integerrimave, pulchre pellucido-reticulata, infra medium profundissime sinuato- complicata; lobulus folio 2-4-plo brevior subhemispheericus, margine transverso involuto; cellule pellucida parvee subpachydermes, mar- ginales minores subquadrate subopacze. Foliola distantia, foliis 4-plo minora, subrotunda, ad medium bifida, segmentis acutis. Flores monoici; Q in ramo primum brevi, demum innovando-elongato, terminales. Bracteze foliis equilongee ad #2 bilobe, lobo oblique ovali acuto, lobulo oblongo learive; bracteola angusta cuneato- lanceolata ad 4 acute bifida, segmentis erectis acutis. Perianthia foliis majora emersa pyriformia compressula 5-carinata, carinis papillosis interdum rudimentarie alatis. Andreecia cauligena, folinm collaterale subexcedentia; bracteze 3-4-jugee turgidie, foliis duplo breviores. Folia, nisi pro lobulo turgidissimo, seepe fere plana, alia apice hamata, caulina fere semper lobulata, ramulina lobulo nune ad pliculam planam redacto, nune magno folio vix duplo minore. A L. paratropa S. certe distincta est minutie; foliis plus minus obtusis —nunquam distinete acuminatis; perianthiis brevioribus (haud clavatis), carinis superne scabridis sed non spinulosis; preecipue autem foliolorum segmentis acutis. 15. Harpa-LEJEUNEA PARATROPA, Spruce. Hab. In M. Campana Andium Peruvianorum, cum L. galeata aliisque Lejeuneis, in cortice. F 4x °35, lob 125-15, ¢ pg; f'* ‘1x :075; br °3; brit 25 «O85 ner “6'x 25mm, Pusilla olivaceo-viridis, post siccationem valde flaccida. Caules prostrati intrivati, 4-1-poll. longi. tenues flexuosi, vage pinnatimve ramosi. Folia contigua dissitave, a basi semierecta divergentia, late oblique ovata abrupte acuminata acuta, obscure celluloso-crenulata valde Harpa-LEJEUNEA. V7 sinuato-complicata; lobulus subtriplo brevior saccato-decurrens sub- ovatus convolutus, apice occulto; cellule subparvee pellucide, infe- riores sensim majores. Foliola foliis 4-plo minora cuneato-obovata vix ad medium usque bifida, segmentis obtusis patulis. Flores monoici; 9 in ramo brevissimo terminales, innovatione simplice suffulti. Bracteze foliis minores, oblique obovato-lanceolatze acute, ad medium bifidee, lobulo angusto lineari; bracteola foliolis duplo major, cuneato-ligulata vix ad medium bifida, seementis subobtusis. Perianthia alte emersa, foliis caulinis dimidio longiora, clavata, brevi- rostria compressula anguste 5-carinata, carinis papuloso-scaberulis, aliquando (nec constanter) apice pauci-spinulosis. Andreecia ramulo brevi cauligeno, folio subsequilongo, constantia, ovato- oblonga; bracteze parvule sub 4-jugee. A L. galeata, S.—seepe in eodem ceespite vigente—distincta florescentia monoica; foliis acute subacuminatis subcrenulatis, et perianthiis apice scabris spinulosisve. 16. HARPA-LEJEUNEA SPINULIFLORA, Spruce. In fluvii Casiquiari ripis, supra Lejeuneas (L. Sagreanam aliasque) in cortice repens. sae ax VO, Cae: fF 05; br? 3 x"1; per 6 x 25mm Pusilla pallide fuscidula. Caules 3-pollicares filiformes parce et subpin- natim ramosi, aliis ramis elongatis. Folia longe distantia, angulo 70° patentia, subplana, oblique oblonga obovatave plerumque rotundata, basi obsoletissime complicata; cel- lule parvulee pellucidz subconformes. Foliola minutissima, foliis 6-7-plo breviora, latitudine caulem haud ex- cedentia, oblonga, ad $ bifida, segmentis late subulatis (3 cellulas longis basique latis). Flores dioici (?}—@ in ramo brevi terminales, innovatione suffulti. Bracteze foliis subzequales, oblique obovato-lanceolate vix ad medium bifidee, parvilobulate ; bracteola oblongo-ligulata breviter bifida, sinu segmentisque acutis. Perianthia bracteis dimidio longiora, pyriformia rotundata subretusave rostellata, antice 1-carinulata, postice 2-carinata, margine carinisque spinoso-cristata, spinis hamatis 3-4 cellulas longis, basi 1-2 cell. latis, valde decidius. Andreecia haud visa. Obs. Inter congeneres paulo aberrans est, e foliis planis rotundatis; perianthiis spinosis autem Harpa-L. blepharogone aliisque plane ac- cedit. 17. Harpa-LEJEUNEA ACANTHOGONA, Spruce. Hab. In M. Tunguragua, supra truncos putrescentes. F 6 x °35; lob 1; c. medi@ gos; f'* 08; br -3; br'*-3 x 15; per “75 x 35 (spints inclusis)™™. Pusilla, olivaceo-viridis, prostrata, intricata. Caules 2-3™ longi flexuosi laxe cellulosi, tenaces tamen, laxe pinnati, pinnis subsimplicibus. Folia subcontigua, e basi brevi saccaté semierecta subdivergentia, decurvo- concava, alia planiuscula, late oblique semicordato-ovata subtri- TRANS. BOT. SOC. EDIN. VOL. XV. Z 178 HARPA-LEJEUNEA. angularia, abrupte acuta obtusave raro obtusata, ad lobuli junctionem subsinuata; lobulus 6-plo brevior saccatus, margine sinuato-incurvo subtransverso, haud raro subobsoletus; cellule mediz medioeres, inferiores sensim majores, submarginales multo minores, omnes sub- eequilateree subincrassatee parum chlorophyllose fere planissimee. F. ramea duplo fere minora. Foliola minuta, foliis 7-plo minora, orbiculata, ad medium bifida, sinu segmentisque subacutis. Flores monoici: 2 in ramo brevissimo terminales, innovatione brevi longioreve suffulti. Bracteze parvie, foliis 2-plo minores, appresse, bilobe vix complicate, lobo oblique ovali acuto, vix ad medium usque cum lobulo lineari-lanceolato connato; bracteola libera anguste oblonga, vix ad $ usque acute bifida. Perianthia alte emersa, foliis caulinis longiora, cylindrico-oblonga superne parum latiora, compressula, supra medium 5-carinata, carinis spinoso- cristatis-alatisve, apice breyi-rostellata. Amenta ¢ cauligena, f. caulino subequilonga, tenuia; bracteze 5-6-juge minutulee. L. paratropa, 8. (e M. Campana), subsimilis, folia habet multo minora valde sinuato-complicata acuminata, lobulo pro ratione duplo majore; foliola majora cuneato-obovata haud ad 4 bifida, segmentis obtusis ; denique perianthia clavata, carinis solum scaberulis v. (rarissime) pauci- Spls. L. diversicuspis (e fl. Negro), foliola fere eadem ac L. acanthogone habet; folia tamen duplo minora, ad lobuli apicem profundissime sinuata, lobulo majore fere hemispheerico; bracteas foliis equimagnas; perianthia pyri- formia ad carinas solum submuricata. 18. Harpa-LEJEUNEA BLEPHAROGONA, Spruce. Hab. In monte Azuay, alt. 3000", in arborum ramulis, supra Tayloriam laciniatam S. repens. F 5 x°4, lob +15; ¢ A-Fo3 f% 18x15; br 4; br’? -4x-2; per “75x 4mm (sine cilits); cilia 15™™ vel 8 c. longa. Pusilla virescens; caules 4-4 pollicares, ineequaliter subpinnatim ramosi. Folia dissita, superiora autem ramulinaque subimbricata patula decur- vulo-concava, late oblique semicordato-ovata rotundata, sinuato- complicata; lobulus rhombeus apiculato-acutus, inflatus et e marginis inflexione ovoideus; cellule parvee vix incrassatee subopace, sub- plane, inferiores sensim majores, Foliola foliis 3-plo minora ovato-orbiculata ad v. paulo ultra 4 bifida, sinu obtuso, segmentis falcato-lanceolatis subobtusis. Flores monoici: 9in ramulo perbrevi, foliis 0-1l-jugis stipato, imnova- tione simplice tamen aucto, terminales. Bractewe foliis subminores laxe complicato-bilobie, subdenticulatie, lobo obovato-rotundo, lobulo duplo minore subquadrato; bracteola cuneato-lanceolata, ad 4 bifida, segmentis subacuminatis acutis. Perianthia majuscula emersa obovata, subpellucida, ex apice retuso brevi- rostellata, prealte 5-carinata, carinis ciliato-spinosis, ciliis ad 8 ¢. longis, inferne 2 ¢. latis. Amenta ¢ lateralia, folio caulino breviora; bracteee sub 3-juge. L. acwithogona (¢ Tunguragua) differt statura majore; foliis sub- HARPA-LEJEUNEA. 179 majoribus pro more subacutis, lobulo minore; foliolis minutis (plus duplo minoribus); bracteis subintegerrimis, angustioribus, lobulo lineari- lanceolato; demum perianthiis angustioribus subcylindricis, solum supra medium carinatis, carinis ala in spinas latiusculas incisa auctis. 19. StREPSI-LEJEUNEA INFLEXA, Hampe. in Lehm. Pug. vil, p. 22. Syn. Hep. 350. Hab. In fl. Negro sylvis, ad fructicum ramulos, necnon ad arborum radices irrigatas, rarius in cortice vetusto. Etiam in Surinamo et Antillis. F:55x°4; lob ‘1-15; ¢ Aas; f :25-3; br 55; brie 5x5, 5x45; Deieo x OT. Majuscula mediocrisve, e pallide viridi flavescens, late eifusa denseque subceespitosa. Caules pollicares pinnati bipinnatique, ramis assur- gentibus inequilongis aliis polyphyllis. Folia ad lat. $v. ultra imbricata, subdivergentia, semicordato-ovata, apice decurvo tortili acutata acuminatave, papulosa, margine celluloso- repanda angulataque, superiora interdum apice grosse subdenticulata, margine postico subrecto solum ad lobuli apicem sinuato; lobulus folio 4-5-plo brevior rhomboideus triangularisve subacutus inflatus, mar- gine parum incurvo; cellule parvee guttulate pellucide alte convexo- prominul, pariete incrassato, trigonis conspicuis, intus 6-sinuatee ambituque anguste opace. Foliola contigua aut subimbricata, foliis subduplo breviora, basi brevi inserta (unde facile soluta), orbiculata, angulata, ad 4-5 bifida, sinu valde obtuso depresso, segmentis subacutis incurvis, raro radicelli- fera. Flores monoici; Q in ramis longiusculis—interdum in ipso caule— terminales, innovatione simplice, rarius iterum innovando-prolifera, suffulti. Bracteze foliis subeequales, paulo augustiores, subincurve, acuminate, grosse repandee v, subdenticulatee, ultra ? bilobee, parum complicate, lobulo angusto apice lineari obtuso; bracteola majuscula orbiculata v. late elliptica incurva, apice ad + solum obtuse bifida, seementis acuminulatis conniventibus. Perianthia majuscula foliis dimidio longiora pyriformia compressula rostellata acute 5-carinata, carinis rudimentarie alatis undulatis repandulisque subleevibus. Andreecia magna crebra, rami apicem vel totum fere tenentia; bractece pluri- (ad 15-) juga, majusculze, foliis paulo minores, ad § fissae, fere equilobee, turgide papulose erosula. Ramum ¢ vidi supra andree- cium denuo ramosum, aliis ramulis masculis, aliis normaliter foli- osis. 20. StrePsI-LEJEUNEA GABRIELENSIS, Spruce. Hab. S. Gabriel, fluvii Negro, in cortice. L. inflece similis et forsan ejusdem varietas; differt autem statura subminore ; foliorum cellulis minoribus (,4-45"™") opacis; foliolis sub- minoribus fere planis, segmentis obtusatis; bracteola angustiore ad 4 acute bifida; perianthio minore fere turbinato subobtuse 5-carinato; amentis ¢ multo brevioribus folio caulino paulo longioribus, bracteis solum 3-5-jugis laxiusculis; (bracteola 9 38 x *28™™), 180 TRACHY-LEJEUNEA. Suscenus XXI.—TRACHY-LEJEUNEA, 8. Plant robustiuscule, raro pusille, albicantes, siccando sepe fuscescentes, pro more dense stratificatee, in vivo semper aqua replete, post sicca- tionem haud facile emolliende. Caules prostrati pinnati bipinnative, valde tenaces, interdum purpurei sanguineive; rami ineequilongi, seepe assurgentes dein apice attenuato decurvi. Folia imbricata, plerumque pellucida, decurvo-fornicata longiora quam lata, seepius subacuta obtusave, rarius rotundata v. subacuminata, nonnunq. in eadem stirpe varia, margine e cellulis prominulis crenu- lata serrulatave, in unica sp. apice spinosa, facie raro sublevia, pler- umque asperula, in paucis muricato-asperrima, basin versus recte vel sinuato-complicata ; lobulus sub 4-plo brevior, raro subobsoletus; cellule in plurimis mediocres (;—3™™ diam.), in paucis parve— subbasales seepe duplo majores ocellum sistentes—pro more obtuse, rarius acute, in 7. L. papillata subulato-prominule, pariete plus minus incrassato, chlorophyllo haud copioso. Foliola subrotunda in pluribus parva minutave, foliis 3-7-plo minora, in paucis $ folium subequantia, integerrima vel rarius spinulosa— in unica foliis imo majora spinosaque—in omnibus levissima, ad 4-3} (raro ultra) bifida, segmentis acutis. Radicellee patentes valide apice nodoso-ramose. Flores in omnibus—T7. L. acanthina excepta—monoici. Fl. 2 ramo bre- vissimo constantes, innovatione in plurimis nulla, in perpaucis brevi simplice suffulti. Bracteze folis longiores, angustee, lobulatie, seepe faleatee hamateeque, plerumque muricato-serrulate denticulate- que—raro spinulosee; bracteola libera lineari-cuneata v. ovalis—raro orbiculata—rima angusta ad 4—} (raro ultra) bifida, interdum integra, seepe denticulata, in L. acanthina argute subduplo-spinosa. Perianthia (nonnunq.-rufula vy. etiam sanguinea) seepe angusta, clavato- pyriformia rotnndato-truncata rostellata, plus minus compressa 5-cari- nata, carinis tenuibus tuberculosis papillosis v. muriculatis, interdum subalatis, in paucis sp. tota facie exasperata; in 7. L. acanthina autem fere rotunda sublaevissima. Amenta ¢ ramulum brevem cauligenum, rarius rami longioris apicem solum tenentia; bracteze 38-6 juge parvee diandree, Cheilo-Lejeunea differt precipue cellulis chlorophyllosis subopacis, minus et nunquam acute prominulis; foliis semper rotundatis; bracteis integerrimis ; perianthiis compressis incurvis, demum bilabiatis, carina antica subnulla, posticis seepe humillimis, nunquam exasperatis. Harpa-Lejeunea distincta est minutie, caule breviore tenuiore minus pinnato, ramis 2 constanter innovatis; foliis perseepe acuminatis, lobulo majusculo, cellulis duplo minoribus; bracteis rarissime denticulatis; peri- anthiis interdum ad carinas spinoso-alatis. Hab. In truncis prostratis putrescentibus, in saxis vel in ipsa terra quartzosa, raro in cortice vivo vel in filicibus ; in planitierum sylvis humidis vulgate, in montibus rarissimee. Distr. In sylva Amazonica, ad il. Negro, Uaupés et Casiquiari praecipne, valde frequentes conspicuzeque, paucis speciebus autem constantes; unica species in Andibus Peruvianis, alt. circiter 1000™ viget. Ipse 6 species legi, omnes (ut videtur) novas. Ceeterze species eidem subgeneri refer- TRACHY-LEJEUNEA. 181 end perpauce videntur, nisi e descriptionibus difficillime recognoscende; 2 in ‘Syn. Hep.’ definitas haud sine dubio citare ausim, se. L. oblongifolia L. et G., in cortice Cinchone lecta, et L. oculata G. ex insula Hawai. L. papillata Mitt. autem, species Novo-Zelandica pulcherrima, certe huc referenda, nostre T. L. acanthine peraftinis. A. Ramus 2 simplex. a. Foliola maxima, foliis imo majora, spinosa. 1. T. L. acanthina. Dioica. F. arcte imbricata ovalia acuminulata, facie insigniter tuberculosa, margine celluloso-erosa apiceque pauci- spina. Foliola cordato-orbiculata ultra } biloba. Bracteola foliolis subconformis subduplo spinosa. Per. fere orbicularis subacuta valde compressa alte 5-carinata fere levissima. b. Foliola dimidium foliwm subexcedentia. 2. T. L. asperiflora. Robusta seepe ceespitosa. F. parum imbricata falcato-divergentia semioblonga, apice decurvo rotundata v. subacuta, papulosa, lobulo sub 4-plo breviore. Foliola subcordato-rotunda ad vel ultra 4 bifida. Br. foliis longiores parum complicate inequi- lobe; bracteola ovalis ad } anguste bifida, segmentis acuminulatis. Per. emersa clavato-pyriformia 5-gona, tota facie cellulis prominulis exasperata, c. Foliola folits 2-5-plo minora. [T. L. papillata. F. subcontigua semiovato-lanceolata subobtusa margine facieque cellulis subulato-prominulis asperrima, lobulo plus duplo breviore levi. Foliola 4 folio subminora ovalia ad 4 bifida subspinu- losa tenuissima levissima. Bracteola ovali-lanceolata breviter biloba spinulosa. Per. alte emersa pyriformi-oblonga, basi excepta, tota facie setulosa, alte 5-carinata.—N. Zelandia.] 3. T. L. pellucidissima. F. late semiovata rotundata, interdum subacuta, erosula serrulatave, basi ocellata, lobulo 4-plo breviore. Foliola 3-4-plo breviora ovalia ultra 4 bifida utrinque sepe 1-dentata. Br. oblong muricato-serrulate anguste lobulat; bractecla oblonga apice bidentula. Per. subemersa pyriformi-oblonga subcompressa 5-carinata, carinis scaberulis interdum peranguste alatis. 4. T. L. pandurantha. Caules validi rufi pinnati, ramis arcuatis, F. semiovato-oblonga sepius obtusata ocellata eroso-denticulata facie leviuscula, lobulo 5-plo breviore. Foliola lobulis eequilonga sub- rotundata vix ad 4 bifida. Br. denticulatee, lobulo duplo breviore ; bracteola ovalis obtusa integra v. bidentata. Per. vix emersa pyri- formia compressula, ante apicem latum constricta, alte 5-carinata, carinis alatis denticulatis. B. Ramus 2 innovatione auctus. 5. T. L. Aquarius. Priori similis, arctius pinnata, ramis seepe parvifoliis, foemineis innovatis. F. acutiora—ramea subacuminata—apice ser- rulata, facie muricato-aspera. Per. magna alte emersa clavato-pyri- formia, inferne teretia, superne compressa alteque 5-carinata, carinis subalatis, tota facie aspera. 6. T. L. immersa. F. ovata subacuta angulata crenulataque, lobulo 0. Foliola 3} folium vix equantia orbiculata ad } bifida. Br, foliis multo longiores lanceolate crenulats denticulateeque minute lobu- 182 TRACHY-LEJEUNEA latee; bracteola oblonga subacuta integra minute denticulata. Per. immersa pytiformi-oblonga supra medium 5-carinata, carinis papil- losis. 1, TRACHY-LEJEUNEA ACANTHINA, Spruce. (Tas. VI.) Hab. In Andium Peruvianorum montibus humilioribus circa oppidum Tarapoto, alt. pease supra saxa et truncos prostratos. F 6x °35, lob 153; ¢ fe3 f*°5x'5; br 9; br’ “65x °7 5 per boxeboaes Plant procumbentes, dense implexo-ceespitosze, albicantes, in sicco inter- dum fuscescentes. Caules 3-}-pollicares flexuosi ineequaliter sub- pinnati, basi sola radicelliferi, ramis assurgentibus arcuatis. Folia opaca, dense imbricata, late patula fere divergentia, apice fornicato- decurva, oblique ovalia oblongave acuminulata, apice inzequaliter dentato-spimosa, v. inciso-2-3- -dentata, dentibus cuspidatis, basin versus sinuato-complcata, facie tuberculoso-aspera, margine toto celluloso-erosa; lobulus 4-plo brevior ovatus inflatus, apice exciso- acutus; cellule parvulz subopace parum elongate, insigniter papu- loso-prominule, ad angulos valde incrassate, trigonis maximis, chlorophyllo parco cum cystis oleiferis curvulis anguste ovalibus raro subrotundis—in sicco interdum absorptis dispersisve—mixto. Foliola imbricata foliis parum breviora, latiora tamen superficieque foliis etiam majora, cordato-orbiculata, ultra 3 biloba, lobis acutatis; mar- gine toto externo dentato-spinosa, spinis utrinque sub 5, integerrimis vel szepe denticulatis. Flores dioici: 2 in ramo brevi longioreve terminales, innovatione nulla suffulti. Bracteze foliis dimidio longiores ad 4 complicato-bilobe, falcato-decurvee, lobo oblique ligulato-oblongo acuminato apice spinu- loso, lobulo parvo subulato spinuloso; bracteola foliolis paulo major, conformis, fere ad $ biloba, lobis tenui-acuminulatis, subduplo inciso- spinosa-ciliatave. Perianthia bracteola paulo minora, fere orbiculata, utroque fine subacuta, apice brevi-rostellata, basi paulo magis angustata, valde compressa, alte tamen 5-plicato-carinata, carinis ‘fere levissimis solum e cellula hic illic prominula repandulis. Amenta ¢ ramulum, folio caulino duplo longiorem, v. totum vy. ejus apicem solum tenentia, ovoidea; bractese 2— 4. -jugee, equitantes, cymbi- formi-complicatie, fere ‘add bilob, lobis dimicdiato-ovatis, antico sensim acuminato serrulato, postico + breviore triangulari-apiculato, anthe- ridia bina in gremio foventes. Obs. Notabilis est Trachy-Lejeunea acanthina ob perianthia fere levis- sia inermiaque foliis asperrimis spinosis nupta. Foliolis maximis spinosis differt a ceteris omnibus Trachy-Lejeuners. Omnium specierum nostre proxima, quanquam abunde distincta, est L. papillata Mitt. in Hook. f. Handb. Fl. N, Zealand, p. 533, cujus descriptionem videas ad pedem.* * Lejeunea papillata Mitt. 1. c. (N. Zealand, ad filicum frondes: SrncLamn! in hb. Hook.)—Pusilla tenella, Z. ovata Tayl. paulo major. Caules semi- pollicares vage ramosi, ramis pro more brevibus. Folia subcontigua dimidiato- ovato-lanceolata falcata obtusa vel abrupte subacuta, margine facieque externa tota fere insigniter setoso-papillosa, sinuato-complicata; lobulus lobo plus duplo brevior ovali-fusiformis lwvissimus; cellule parvule extus subulato-prominule, paucwe subbasales laxiores subplane, lobuli autem minores planissime. Foliola 4 folium vix equantia, ovalia ad medium bifida, segmentis acutis, margine TRACHY-LEJEUNEA. 183 Primo visu inter Priono-Lejeuneas collocanda, sed perianthia postice distincte acuteque bicarinata vetant.—Priono-L. mucronata Lacoste. (in Venezuela lecta) nostre ob folia muriculata subafhinis; foliis abrupte tenui-apiculatis, foliolis ovatis profunde bifidis solum denticulatis, et (pre aliis) perianthiis obcordatis postice 1l-carinatis margine ciliatis, differt.—Priono-L. denticulata Sw., ob ramulos Q haud innovatos, folia subacuminata denticulata facie asperula paulo accedit; statura tamen lhumili, foliolis integerrimis, et perianthiis obcordatis compresso-subplanis margine serrato-alatis, longius distat.—Odonto-L. Peruviana Lindenb. foliola habet seepe magna bifida serrataque, fere ac in nostra, structura tamen cellularum, ramo ? prolifero, forma perianthii, etc, recedit. Lophocolea fulvella Tayl. (sub Chiloscypho) e Cap. Horn, et L. Gayana Mont. (sub Chiloseypho) e Chili, quoad habitum, folia foliolaque dentata, cum nostra Lejewnea singulari modo congruunt, generice tametsi longe distant. 2. TRACHY-LEJEUNEA ASPERIFLORA, Spruce. (Tas. VII.) Hab. In sylvis humilioribus fluvii Negro prope S. Carlos, et fl. Uaupes juxta Panuré, in terra arenosa inter filices (Schizwas aliasque) qua- rum stipitibus irrepit. F ‘6 x °5, lob 15 x 125, ¢ pas; f'* 35 x°4; br. lob. aut 65 x°3; bra 55 x oo, per 8 x30; 10x °4™™, Pallida, sat robusta, prostrata vel haud raro eczespitoso-erecta, Caules 1- 2-pollicares flexuosi parum ramosi, seepe ramulis ? pinnulati, radi- cellis suis flabellatis arcte repentes vel inter se adhzerentes. Folia subimbricata falcato-subdivergentia, apice decurvo hamata, semi- cordato-ovato-oblonga rotundata, rarius abrupte obtusa vel sub- acuta, margine eroso-repanda, basin versus recte vel subsinuato-com- plicata; lobulus 4-plo brevior ovato-rhombeus inflatus, apice acuto incurvo; cellule parvule prominule valde pellucide, ambitu anguste opacie, sinuoso-hexagone, pariete ad angulos insigniter incrassato. Foliola foliis vix duplo breviora, contigua vel subdissita, subcordato- rotunda, paulo latiora quam longa, ad medium—raro ultra—bifida, sinu triangulari, segmentis acutis, carinata, seepe squarroso-patentia, margine repandulo. Flores monoici: ¢ in ramo brevissimo, basi foliis parvis solum unijugis stipato, terminales. Bractez foliis sublongiores valde falcatze involu- teeque ad 4 bifidee (nec semper complicate), lobo ligulato-oblongo ob- tusato, lobulo duplo breviore anguste lanceolato acuto; bracteola ovalis ad } bifida, segmentis acuminulatis contiguis forticatisve. Perianthia majuscula, basi a bracteis demum subremota, clavata abrupte subacuta—rarius rotundata—obscure rostellata, subcompressa, 5- gona, tota facie (ad angulos praecipue) cellulis alte prominulis exas- perata, demum apice 2—5-valvia. Calyptra dimidio brevior pyri- formis apice demum bivalvis. Andreecia ramulo cauligeno sistentia, vel in ramo longiore—raro in ipso eroso-spinulosa, ceeterum levissima, tenuissima fere vitrea. Flores monoici: @ in ramo brevissimo terminales, innovatione nulla. Bractez foliis minores oblique ovales ineequilobe ; bracteola ovali-lanceolata apice breviter biloba: omnes spinulose. Perianthia alte emersa pyriformi-oblonga, basi conica levi excepta setulosa, alte 5-carinata, carinis compressis apice rotundato-truncatis, Amenta g ramum brevem terminantia; bractex paucijuge majuscule turgid sublieves. 184 TRACHY-LEJEUNEA. caule—terminalia, longispica; bracteze 5-12-jugze majuscule turgide diandrz laxe imbricate. Species insignis distinctissima, nisi pro perianthiis subzequaliter 5- gonis scabris inter Cheilo-Lejeuneas militaverit. 3. TRACHY-LEJEUNEA PELLUCIDISSIMA, Spruce. Hab. In cortice vetusto semiputrido juxta S. Carlos del Rio Negro, pre- cipue secus rivulum Cauvapuna frequens; etiam ad Marabitanas, et in fl. Caipura (fl. Trombetas tributarii) ripis. F6x°5, lob *15—2, ¢ d-dh: fl 15x °125, 2°15; br “75; br'* 6x 35; per °8 x 5mm, Albescens tenera valde pellucida laxe depresso-ceespitosa. Caules in . matrice arcte repentes, sepe subparalleli, inferne subpinnati, apice longe simplices, ,aliis ramis assurgentibus apiceque decurvo radi- cantibus. Folia subimbricata decurvo-patula late semiovata rotundata, obtusa, vel abrupte subacuta, facie tuberculosa muriculatave, margine postico recto vel concavo integerrima, antico rotundato. apiceque minute muricato-denticulata, basi suabdecurrente complicata; lobulus 3-4-plo brevior ovato-fusifurmis inflatus, apice brevi involuto; cellule mediocres valde pellucide fere vacue, granis chlorophylli perpaucis sparsis, raro in annulum incompletum angustum congestis, pariete ad angulos vix minute incrassato, conico-prominule obtusee—mar- einales autem multo minores et acute, basales 6-8, cellulis mediis duplo longiores, in ocellum aggregatee. Foliola dissita, foliis 3-4- plo breviora, ‘ovalia rhombeave, ultra dimidinm acute bifida, seomentis angustiusculis subacuminatis, margine suberoso, medio utrinque szepius obtuse unidentata. Flores monoici: 9 in ramo brevissimo, basi foliis parvis unijugis (raro pluribus) stipato, terminales. Bracteve foliis longiores, falcata, ad $ complicato-bilobe, lobo oblique semiovali subacuto muricato-serru- lato, plica triplo angustiore lineari-rhomboidea, apice libero (ae. lobulo) lanceolato; bracteola oblonga brevissime bifida, interdum integra. Perianthia foliis longiora pyriformi-oblonga vel subclavata, compressula, apice rotundato-truncato obsolete rostellata, antice 1—carinata, pos- tice alte 2-carinata, carinis muricato-asperis, interdum supra medium anguste alatis. Amenta ¢ crebra, elongata, ramuluin totum vel ejus apicem solum sis- tentia; bracteze 4 L0-jugee majuscule turgidee. famus fertilis rarissime parum elongatus invenitur, ramulumque minutum, foliis 2-3-jugis vestitum—interdum masculum—profert. Ra- mulus autem iste pro innovatione nullomodo habendus, quam ab in- volucro foliis 1-2-jugis dissitus est. 9. TracHy-LEJEUNEA PANDURANTHA, Spruce. Hab. In a Negro, Uaupés, ete. sylvis, supra truncos putridos, frequens. F 75x ‘55, lob °15; ¢ py; f °15 x15; br 1:0.x«°7%5 br? “75. xi:5; per’ Bbnx 55, “83x °7 ath tobusta, flavida, prostrata, late denseque stratificata, semper aqua repleta. TRACHY-LEJEUNEA. 185 Caules 2-pollicares, intricati, flexuosi, rufi purpureive, validi, tenaces, strato corticali e cellulis 7-seriatis magnis oblongo-quadratis pellu- cidis, stratis 2 v. 3 interioribus e cellulis multo angustioribus, conflati, inzequaliter pinnati, ramis arcuato-flexuosis seepe apice attenuatis. Folia rigidiuscula, paulo (vix ad 7 lat.) imbricata semiovata-oblonga sub- falcata, apice decurvo v. fere involuto rotundata obtusatave—ramo- rum interdum subacuta, facie subleevissima, margine fere toto minute eroso-denticulata, basi antica dilatata sed non semicordata, postice subrecte complicata, plicd fere recta v. parum convexd, sensim in folium abiens; cellule mediocres pellucida, hand incrassatie, sub- conformes, paucis (3-6) ad folii mediam basin ceteris duplo majori- bus in ocellum congestis, subplane, solum marginales obtuse acuteve prominulee. Foliola minuta, caule haud latiora, foliis 5-plo breviora, subrotunda, vix ad 4 usque anguste bifida, segmentis acutis integerrimis. Flores monoici: @ in ramo brevissimo, foliis sub 2-paribus (infimis minutis) vestito, terminales, innovatione nulla suffulti. Bracteze foliis majores, faleatee, incurvo-concavie, eroso-denticulatee, lobo valde oblique ovali obtuso, lobulo 4-plo angustiore sub 2-plo breviore acuto acuminulatove; bracteola brevior ovalis obtusa, apice vel integra vel seepius brevissime anguste bifida. Perianthia vix emersa, f. caulinis tamen sublongiora—demum elongata— rufa sanguineave, pyriformia compressula paulo infra apicem latum rotundato-truncatum subconstricta, adeo panduriformia, alte 5-cari- nata, carinis alé 4—5-cellulas lata, apice muricato-denticulata, tota fere longitudine auctis, marginalibus valde devexis. Andreecia cauligena, foliis sublongiora tenuia; bractese 4—6-juge parvee vix contiguze compresso-subglobosee turgide apice subineequaliter bi- lobee. Trachy-L. pellucidissima differt teneritate, pelluciditate, ramificatione sparsiore ; foliis brevioribus fere planis, facie plus minus scabris; foliolis solum 3-4-plo (nec 5-plo) minoribus, ultra $ bifidis; perianthiis infra apicem haud constrictis, carinis peranguste (vel seepe non) alatis. 7'r.-L. Aquarius ramo fertili innovato et foliis asperrimis longius distat. 5. TrRacHy-LEJEUNEA AQUARIUS, Spruce. Hab. In sylvis precipue humilioribus ad flumen Negro superius vulgata, ubi ad truncos semiputridos plagas magnas densas albidas, semper aqua repletas, efformat. F 55x °45, lob -15; ¢ 4; f'% 125-15; br 8-10; br 45x33; per ES xno, Caules 3-pollicares procumbentes intricati rufescentes, validi tenacissimi, haud facile rupti, strato corticali e cellulis magnis pellucidis 7-seriatis, stratis internis 3 v. 4e cellulis multoties angustioribus, conflati, arcte pinnati, ramis seepe parvifoliis eleganter decurvis. Folia confertiuscule imbricata, late dimidiato-ovata subfaleata, apice devoluta, caulina abrupte oblique subacuta, ramea acutata v. subacu- minata, omnia e cellulis prominulis facie muriculata, margine den- ticulata apiceve serrulata, caulina recte, ramea sinuato-complicata, lobulo 4-plo breviore convoluto-inflato; cellule: parvee, (subapicales minute,) cuttulate, extus conics, paucee suprabasales magne elon- gate in ocellum coacervate, omnes parietibus subincrassatis. Foliola minuta foliis sub 4-plo minora, subrotunda, ad medium bifida. TRANS. BOT. SOC. EDIN. VOL, XV. 2A 186 TRACHY-LEJEUNEA. Flores monoici: @ in ramo brevissimo terminales, innovatione simplice parvifolia, seepe arcuata, interdum apice mascula, suffulti. Bracteze foliis fere duplo longiores, vix ad 4 biloba concavee (haud com- plicatee), valde decurvee devoluteeve acutee, facie externa valde exas- peratee apice subdenticulate, lobo obovato-ovali, lobulo multo minore angustiore lanceolato linearive; bracteola duplo fere brevior obovato- lanceolata brevissime bifida, seementis obtusis, denticulata. Perianthia magna f. caulinis fere triplo longiora, rufa sanguineave clavato- pyriformia apice lato subtruncata, facie ab ipsa basi e cellulis magnis sy is™™.) tuberculoso-aspera, inferne fere teretia, superne sat com- pressa alte 5-carinata, carinis tenuibus, vel alatis, vel non, asperulis. Amenta ¢ sat robusta cauligena, folia caulina 2-plo superantia, alia in ramulo longiore terminalia; bracteze 5-10-jugee, cymbiformes, fere ad 4 bilobe, lobis anguste ovatis subobtusis, inferiore paulo breviore angustioreque; antheridia bina, 6. Tracuy-LEJEUNEA IMMERSA, Spruce. Hab. Yurimaguas, fluvii Et ee in cortice. F 6x°5, 65x °52, ¢ sya f 25x33 br 1:0x°4; br’ 6x4; per 6 x -3mm. Pallide viridis siccando fuscidula, prostrata, plagas circumscriptas efficiens; caules pollicares flaccidi sat ramosi, ramis implexis subassurgenti- bus. Folia subimbricata oblique ovata abrupte subacuta raro subapiculata, angulata vel erosula, celluloso-crenulata, basi obsolete complcata (lobulo 0); cellule majusculee pellucidee subelongatee. Foliola dissita dimidio folio minora orbiculata, paulo latiora quam longa, ad medium bifida, sinu segmentisque acutis, integerrima, subcon- cava. Fl. monoict; Q terminales, cum innovatione simplice; bracteze foliis multo longiores, suberectee, oblique lanceolatee, contortee, celluloso-crenu- latee et subdenticulatee vel etiam subincisie, prope basin complicate, plicAé minuté lineari apice subulaté; bracteola minor (folia caulina cequans) oblonga vel subrotunda abrupte acuta rotundatave ttegra, plus minus denticulata. Perianthia inclusa pyzifor mi-oblonga subretusa rostellata vix compressula, supra medium 5-carinata, carinis papilloso-cristulatis. an a 6 cauligena, folio zquilonga breviorave ; bracteae mediocres O-Juge. A L. pellucidissima differt ramis foemineis innovatis, foliis elobulatis, cellulis submajoribus, foliolis fere duplo majoribus, bracteis magis denti- culatis incisisve, bracteola denticulata, et perianthiis ad carinas insigniter papilloso- (muriculatove-) cristulatis. Suncenus XXII.—DREPANO-LEJEUNEA, 5. Plante pusille minuteve, virescentes fulveeve, in aliis hepaticis (pree- cipue Lejewneis) laxe reptantes, spe vix perceptibiles, raro in plagu- Jas densiores intricatee. Caules tenues sed tenaciusculi, laxe pinnatim vel swpius vage ramosi. DRrEPANO-LEJEUNEA. 187 Folia dissita, primum assurgentia dein apice valide decurvo-hamata, elongata, 2-4-plo longiora quam lata, pro more oblique lanceolata acuminata acuta—raro latiora ovataque—lobulo ovato-fusiformi tur- gido (raro obsoleto) aucta, margine (antico preecipue) spinulosa erenu- latave, in paucis speciebus insigniter pectinatim laciniata, levia papulosave; cellule parvee vel fere minute subconformes—raro paucee subbasales majores ocellum sistentes—pellucide, pariete vix incras- sato. Foliola minuta, in sp. Austro-Americanis a basi integra brevissima cuneata biparita, cruribus 3-5 cellulas longis late divergentibus (in unica L. palmata erectis); in L. hamatifolia, Europea, solum bifida, basi integra altiore, cruribus brevioribus. Flores dioici, in perpaucis monoici: 9 in ramo brevi terminales, innova- tione simplice suffulti—in unica L. campanulata in caule ramove iteratim innovando-florifero. Bracteze foliis longiores seepeque multo latiores bilobee concave, vix complicates, lobis parum ineequalibus spinulosis; bracteola angusta seepe subovalis spinulosa, ad }—% bifida, segmentis acuminatis, pro more cum bracteis altiuscule connata, Perianthia ssepius emersa 5-gono-obpyramidata, rostellata, carinis in per- paucis inermibus, in plurimis superne spinulosis apiceque in cornu breve subhorizontale pungens dilatatis. Andreecia longispica; bracteze majusculee contiguee rotundo-naviculares subeequilobee, ad carinam e cellulis exstantibus pulchre moniliato- papulosee, monandre. Hab. Species Amazonicz et Andinz in foliis vivis, filicibus, et licheni- bus repens, necon alias hepaticas infestans, nunquam in cortice; species unica Kuropzea autem in fruticum cortice et in rupibus crescit. Distr. In America eequatoriali 8 species legi, quarum 6 Andium juga sylvatica, alt. 1000-3000™ habitant, 2 solum in planitie visee, earumque 1 (L. palmifolia N.) in sylvis flum. Amazonum borealibus, super truncos prostratos, ad arborem pedem, etc. viget, semper autem caulibus suis tenacibus implexo-ramosis, foliorumque laciniis uncinatis, alias Lejewneas, Bazzanias, etc. arcte amplectens, imove denique exstirpans. Altera species amazonica est L. capulata Tayl.! (quam nullo modo a planta Taylori originali, in Oware Africze lecta, distinguere possum): probabiliter inter “L. hamatifolie vars.” ‘Synopseos Hepat.’ jam enumerata. L. hamati- folia Hook. vera autem, Europe occidentalis, ins. Britannicarum preci- pue, incola, nusquam in America mihi obvia fuit. LZ. inchoata Meissn., ex ins. Antillis, certe eidem subgeneri pertinere videtur; alize species sunt L. Ternatensis G., tenuis N., tridactyla G., trematodes N., dactylophora N., muricata G., insulis Malayanis et Oceanicis indigenz, plereeque L. paliifolie arcte affines. § 1. Folia margine antico pectinatim incisa. 1. Drepano-L. palmifolia. Dioica: Per. urceolata 5-carinata, carinis apice rotundo-prominulis, tota facie cellulis prominulis papulosa, ceeterum inermia. § 2. F. solum spinuloso-denticulata v. subintegerrima. A. Perianthia perfecte inermia. Drepano-L. anoplantha. Dioica. F. hamata semilanceolata acuminata 188 DREPANO-LEJEUNEA. celluloso-crenulata, facie papulosa. Per. vix emersa turgide obovata brevirostria, ad carinas subpapulosa. B. Perianthii carine superne spinis, ciliis denticulisve armata, v. saltem apice tr cornu subulatum porrecte (i.e. unispine). a. Flores monovet. 3. D.-L. longirostris. F. hamata semilanceolata acuminata obtuse spinu- loso-denticulata subpapulosa. Per. emersa, obovata sensim prelonge rostrata, alte 5-carinata, carinis apice dilatato subulato paucispinis, demum apice in valvulas 5 erectas fissa. b. Flores divict. 4, D.-L. capulata. Minuta. F. distantia hamata ovato-subulata apicu- lato-acuminata, margine antico spinulis paucis nullisve, postico medio spina maxima deversa armata, cellulis subplanis. Per. emersa obpyramidata recte truncata brevirostria, carinis 5 altis apice in cornu acuminatum ciliatum porrectis. 5. D.-L. lichenicola. F. iis pr. similia, magis spinuloso-denticulata. Per. subimmersa rotundo-obovata brevirostria 5-gona, angulis parum prominulis subdenticulatis apice in cornua brevi-triangularia dila- tatis. 6. D.-L. infundibulata. F. fere plana semiovata triangulariave acuta muricato-subserrulata. Per. maxima clavata brevirostria—demum (ore hiante) infundibulata—supra medium 5-carinata, carinis in subulam latam peracutam subhorizontalem apice dilatatis, caeterum inermibus. D.-L. campanulata. F. subplana hamatave anguste lanceolata acumi- nata subdenticulata, ad lobuli apicem subspinulosa. Per, vix emersa urceolata humiliter 5-carinata, carinis apice 2-3 spinis, demum (ore hiante recurvo 12—15-dentato) companulata, 8. D.-L. planiuscula. F. subplana ovato-lanceolata subacuminata spinu- loso-denticulata. Per. subemersa urceolata, apice truncato clauso brevirostria, preealte 5-carinata, carinis superne in alam paucilacinia- tam dilatatis, [D.-L. hamatifolia ab omnibus prioribus differt foliolis solum bifidis (nec bipartitis), obtriangularibus, sinu apicis lato sublunulato, lobis brevi- subulatis basi 3c. (raro solum 2 ¢.) latis. F. iis L. capulate et lichenicole subsimilia, apice minus attenuata, spina posticd carentia, margine antico rude 3-4 dentata. Per. prxelonga pyriformia sensim brevirostria, acute 5-gona, carinis superne setoso-spinosove-alatis. —Britannia, &e. | ~ 1. DrEPANO-LEJEUNEA PALMIFOLIA, Nees. In Mart. Fl. Bras. I. 1, 366. Syn. Hep. 347. Hab. Ad flumen Amazonum fere totum, praecipueque secus ejus tribu- tarios boreales, fl. Negro, Uaupés, Casiquiari, ete., in truncis decisis, ad arborum pedem in rupibus, ete., semper fere supra alias Hepaticas (Pazzanias, Micropterygia, ete.) vel muscos repens. Cel. Martius primum invenit. F -4x°'3; lob ‘125; ¢ py; f' 08; br ‘5; bria 45x °25, 85x ‘25; per 6x omm, Pusilla, fulva rufescensve, prostrata, in tegeticulam densam intricata. Caules pollicares, parce et subpinnatim ramosi, tenues sed tenaces. DREPANO-LEJEUNEA. 189 Folia dissita, a basi assurgente hamato-decurva, falcato-dimidiata, semi- ovata, in acumen late subulatum acutum sensim angustata, margine postico (concavo) integerrima, antico profunde inciso-ciliata—quasi pectinata—ciliis 5-10, mediis longioribus caulique parallelis (ramu- lorum tenuiorum nonnunguam ad dentem unicum magnum redactis), sinuato-complicata; lobulus folio 3-plo brevior, semiovatus turgidus, dente apicali incurvo abscondito; cellule parvule, subconformes (ocellis nullis) paulo elongatz subpapulosse, vix incrassatee, pellu- cide et fere vacuze.—In planta viva cellule foliorum paucee—soli- tarize vel lineatee—dense chlorophyllose, ceteris cellulis vacuis. Foliola minuta, basin fere adusque bipartita, laciniis subulato-setaceis, 4-5 cellulis (plerumque uniseriatis) constantibus, erectis, parallelis. Flores dioici: ? in ramo brevi terminales, innovatione simplice suffulti. Bractez, fl. sterilium incurvo-conniventes, fl. fertilium suberecte, obovate, foliis submajores, ad 4 subineequaliter bifidee, vix compli- cate, seementis tenui-acuminatis laciniatis—fere pinnatifidis—laciniis subulatis subhorizontalibus ; bracteola oblongo-lanceolata, ad 4-5 bifida, profunde laciniata, lobis valde attenuatis. Perianthia foliis dimidio longiora suburceolata (a basi conica ovato- oblonga) subretusa, rostellata, supra medium 5-carinata, carinis apice rotundo-prominulis, 2 posticis (v. omnibus) apice abrupte dilatatis, alas auriculasve fingentibus, tota facie papulosa, ad carinarum apicem cellulis pellucidis extantibus moniliata. Amenta ¢ terminalia elongata julacea; bracteze ad 20-jugee imbricata subzequaliter complicatze cymbiformes, lobis semiovatis acuminatis, ad carinam celluloso-moniliatee. 2. DREPANO-LEJEUNEA ANOPLANTHA, Spruce. Hab. In M. Campana, supra Lej. porelloidem S. repens. S. Gabriel et S. Carlos del Rio Negro; necnon ad fl. Vaupés ripas in truncis vetustis. F -35 x ‘1; lob *125; ¢ AG; f™ 1; br °4; brit 35 x°2; per “4x 3mm, Pusilla fulva dense prostrato-ceespitosa. Caules 4—}-pollicares laxe pinnati v. subfasciculato-ramosi, ramique seepe elongati. Folia dissita assurgenti-subsecunda, apice deorsum hamata, suberecta (axi cauli fere parallelé) anguste semilanceolata acuminata acuta, facie papulosa, margine celluloso-crenulata, sinuato-complicata; lobulus 3-plo brevior ovato-rotundus, e convolutione ovato-fusiformis, tur- gidus, margine inflexo cum caule angulum 45° efformante, apice obtuse recte prominulo ; cellule parvee pellucida subconformes. Foliola fere 4-plo breviora, appressa, cuneata, bipartita, cruribus 3-4 c¢. longis, basi 2, superne 1 ¢., latis, angulo subacuto divergentibus, basi folioli integra 2 cell. alta. Fl. dioici: @ in ramo seepe perbrevi, terminales, innovatione simplice suffulti. Bracteze foliis paulo longiores, multo latiores (arte ex- planatze snubrotunde), antice posticeque (mediante bracteola) basi connate, conniventi-concavee, vix ad 4 biloba, lobis haud complicatis, ovali-lanceolatis acuminatis pauci-spinulosis, lobulis perpaulo mino- ribus, altero breviore mutico; bracteola ovali-cuneata, ad 4—$ bifida, seomentis subacuminatis subspinulosis. Perianthia vix emersa turgide obovata altiuscule 5-carinata brevi-rostel- lata inermia, fere leevissima, solum ad carinas subpapulosa. Amenta ¢ terminalia; bractez paucijugee majuscule rotundo-galeiformes 190 DREPANO-LEJEUNEA, compressulz ore truncato vix bifidule, ad carinam cellulis ex- stantibus pellucidis uniseriatis quasi moniliatee. Planta Uaupensis ¢ folia habet tenui-acuminata minus papulosa ; bracteas sublongiores (‘5™™), 3. DREPANO-LEJEUNEA LONGIROSTRIS, Spruce. Hab. In M. Tunguragua, supra filices (Hymenophylla) repens, alt. 2400™. fF ‘4x 1S. = 35 lob “153 Cc wb fi ‘08; br ‘4; per “65 x4 ane inclusis), rostellum *15™™, Pusilla rufo-badia. Caules } poll. vage v. subpinnatim ramosi, ramis seepe ascendentibus, raro aliis superne parvfoliis. Folia subdissita pleraque assurgenti-subsecunda apice deorsum valide hamata, alia tamen (latiora) planiora solum apice decurvula, dimi- diato-lanceolata sensim acuminata acuta, margine (sepe valide re- curvo) spinuloso-denticulata, dentibus obtusiusculis ineequalibus, uno alterove supra lobuli sinum czeteris seepius submajore, subpapulosa ; lobulus fere 3-plo brevior ovoideus turgidus apice acuto occulto ; cellule parvulee parum elongate vix incrassatee parum chlorophyl- losee, suprabasales longiores vix autem in ocellum aggregate. Foliola minuta foliis 5-plo breviora bipartita, basi 2-8 ¢. alta, segmentis divergentibus 4-5 c. longis, basi 2 ¢., apice le. latis, radicellis in haustorium peltatum szepissime colligatis. Fl. monoici: @ in ramo sepe perbrevi terminales, cum innovatione simplice. Bracteze foliis caulinis subzequales utrinque alte connate, suberectee, ineequaliter bilobee, lobo subulato, lobulo subquadrato bifido, spinoso-denticulatee; bracteola brevior subrectangularis ad 4 bifida, segmentis subacuminatis. Perianthia altiuscule emersa obovato-obpyramidata, alte 5-carinata, carinis sub apice horizontaliter dilatato subulato paucispinis, supra carinas in rostellum prelongum validum elongata, denum_ 5-fida valvulis tamen (cum rostelli laciniis lmnearibus) fere erectis. Andrcecia ramos terminantia; bracteee pauci-plurijugee majusculee com- plicato-naviculares, biloba, lobo anteriore submajore cuspide aucto, ad carinam plus minus cellulis pellucidis moniliate. 4, DREPANO-LEJEUNEA CAPULATA, Tayl. In Lond. Journ. Bot. 1846, p. 394. Hab. Ad fl. Negro et Uaupés, in arborum foliis, imo in plantis herbaceis (e.g. in Dithyrocarpi sp.), seepe alias Lejeuneas infestans, #25 x 07, °2x°1, lob “1-12; ¢ Fy-do 3 (f"" 3c. longa;) br 3; per °35-"4 x 3mm (sine spins). Minuta viridis effusa. Caules }-} poll. parum ramosi, raro subpinnati, ramis paucis elongatis. Folia distantia patula assurgentia apice valide hamata, ovato-subulata acuminata, apice tenui cellulas 3 uniseriatas constante, basi cum lobulo (duplo breviore, fere eequilato) in sacculum ovoideum apice obtuse prominulum convoluta, margine postico ad lobuli apicem spina maxima swepe deorstum spectante armata, caeterum subintegge- rimo, antico pauci-(sub 3-) spinuloso integerrimove, haud raro expla- DrREPANO-LEJEUNEA. 191 nata, v. (lobulo obsoleto) cuneato-lanceolata fere ad medium usque bi-tridentata, dente spinave media longiore; cellule minute, ob- longo-5-6-gon, subplanze, subpellucidee. Foliola minuta, bipartita, cruribus subulatis 3-4 ¢. longis subdivergen- tibus. Fl. dioici: Q in ramo brevi terminales, innovatione simplice suffulti. Bractez foliis majores erectze altiuscule connate bilobee laxe compli- cate, ciliate v. saltem spinulose, lobo acuminato, lobulo truncato- bi-tri-ciliato; bracteola vix ad medium bifida, segmentis subacumin- atis, oblonga. Perianthia emersa, f. caulinis fere duplo longiora, obpyramidata late recte truncata brevi-rostellata, alte 5-carinata, carinis apice in cor- nua triangulari-acuminata ciliata—raro solum spinulosa—horizon- taliter dilatata. Andreecia terminalia, interdum longispica; bracteze subcontigua majus- culee rotundo-naviculares, carina celluloso-moniliatee. E. foliis “ singulari dente spinoso prope lobulum ad instar siee manu- brii armatis” certe eadem ac L. capulata Tayl., in Oware Africee a PALISOT lecta, videtur. De bracteis involucri ciliatis tamen cl. auctor mentionem haud fecit. 5. DrepaNo-LEJEUNEA LICHENICOLA, Spruce. Hab. In M. Guayrapata, super lichenes (Stictas) repens. Facie, magnitudineque D.-L. capulate aliisque sat similis, diversa tamen caracteribus sequentibus.—Folia hamata, supra basin inflato-lobula- tam late falcato-subulata, apice tenui acuta, margine inequaliter spinoso-denticulata, dente supra-lobulari ceteris majore (ut in plurimis congeneribus) ; cellule subplanz subelongatze, ocelliformes pro more nullew.—Foliolorum crura latissime divaricata 3-4 c¢. longa.—F lores dioici.—Perianthia subimmersa rotundo-obovata-urce- olatave brevissime rostellata, 5-gona, angulis parum prominulis sub- denticulatis, apice tamen in cornua brevi-triangularia acuta parum assurgentia dilatata. 6. DrRePANO-LEJEUNEA INFUNDIBULATA, Spruce. Hab. Chimborazo, in folio, cum aliis Lejewneis intexta. F 4x °25; lob 125; ¢ g4-A5; f :08; br -45; per 8 x -38™™, Pusilla, pallida, tenuis. Caules }-pollicares prostrati subramosi. Folia subdissita, fere plana, apice decurvula, a basi constricta abrupte dilatata, dimidiato-ovata—caulina latiora subtriangularia—subacu- minata v. solum acuta, hic illic muricato-serrulata, dente supra- lobulari interdum majore, subsinuato-complicata ; lobulus plus 3-plo brevior ovato-oblongus turgidus exciso-acutus; cellule minutule leptodermes fere vacuz parum elongate, ocelliformes nulle, Foliola minuta bipartita, cruribus setaceis 2-4 ¢. longis seepe valde divaricatis. Flores dioici; 2 in ramo brevi terminales, cum innovatione. Bractez foliis vix majores suberecte alte connate, ad } bilobe ; lobo lanceo- lato acuiminato, lobulo brevi truncato-bidentello, spinuloso-subser- rate; bracteola fere ad } bifida. Perianthia maxima, f. caulinis 2-plo longiora, clavata—demum (ore fisso, 192 DREPANO-LEJEUNEA, paululum hiante) infundibuliformia—basi angusta, supra medium 5- carinata, carinis superne in subulam latam peracutam fere hori- zontaliter dilatatis, rostello breviusculo. Capsula paulo exserta, L. campanulata foliis latis subplanis affinis, differt perianthio multo breviore turgido urceolato, carinis apice spinis armatis, Anne eadem ac “ L. tenuis Nees” (S. H. 390, n. 199) quoad plantam Guianensem? A, L. tenui, typica, Javanica, tamen distincta videtur, 7. DrEPANO-LEJEUNEA CAMPANULATA, Spruce. Hab. In M. Tunguragua, Chimborazo et Azuay, alt. 3000, super filices et arborum folia repens, seepe cum ge ee ee admixta, F5x°15, 4°08; lob °10-15; cb; f' 07; br ‘55; per 5 x -25™m, Pusilla pallida fulvave ; caules 4 eee ae valde intricato-ramosi, laxe pinnati et bipinnati, radicellosi, Folia dissita assurgentia, plus minus hamata v. solum apice decurvula, oblique anguste Janceolata sensim acuminata acuta subdenticulata, ad lobuli apicem subspinulosa, raro fere integerrima, margine plano v. recurvulo, subsinuato-complicata ; lobulus sub 4-plo brevior ovoideus turgidus exciso-acutus ; cellule parvee minutulzeve oblongo- hexagon subpellucide haud incrassate, marginalibus exceptis sub- planz, pauce inferiores majores vacuee, sparsee vel in ocellum agere- gate. Foliola 7-plo minora bipartita, segmentis angulo recto divergentibus subulato-setaceis breviusculis (3-4 ¢. longis). Flores dioici: @Q in ramo brevissimo, innovatione simplice suffulti ; raro in ipso caule (velin ramo) iterum prolifero, terminales. Bracteze erecto-hamatee, utrinque alte connate, foliis subeequilongse, Ineequa- liter ultra medium bilobee, subspinulos: e, lobo lanceolato-subulato acuto, lobulo subquadrato apice bidentato; bracteola angusta ad 4 bifida, segmentis acutis. Perianthia vix emersa urceolata tenuia pellucida, minus alte 5-carinata, carinis apice 2-3-spinosis, demum—vel szepius ab initio—ore hiante recurvo inciso 12-15-dentato, companulata. Plante ¢ cum @ intexte, vix extricabiles. Androecia in ramis termin- alia; bracteze seepius plurijugee majuscule contiguee naviculares apice bifidee; lobis subacutis, antico paulo majore, ad carinam cellulis pellucidis extantibus muriculate, L. longirostris certe distineta erit: colore saturate rufo; foliis sublatiori- bus magis spinulosis valde hamatis, cellulis submajoribus; preecipue autem peri: anthiis longioribus longissime rostratis, carinis infra rostellum hori- zoutaliter dilatatis spinosisque, fructu egresso, fere clausis, rostello autem 5-fido, laciniis linearibus suberectis. 8. DrEPANO-LEJEUNEA PLANIUSCULA, Spruce. Hab. In M. Tunguragua, Guayrapata, Campana, ete., super arborum folia, lichenes, etc., seepe aliis Lejeunets consociata. F 5x3, lob 1-125; ¢ go—pg; f' °125; br 5; brit 45x °15 5 per -6 x *55™™ (lis inclusis) ). Pusilla, pallida viridisve; caules } poll. prostrati pinnatim ramosi, ramis assurventibus, aliis apice sensim minutifoliis. a DREPANO-LEJEUNEA. 19: Le% Folia dissita patentia dimidiato-ovato-lanceolata lanceolatave subacumi- nata acuta inequaliter spinuloso-denticulata, raro subintegerrima, pleraque subplana, pauca deorsum subhamata, subrecte complicata ; lobulus 4-5-plo brevior ovoideus inflatus, acuminulato-acutus; cel- lule minutule subeequilaterze leptodermes, marginalibus exceptis subplane, inferiores sensim longiores pauce (nullave) majores vacuee ocelliformes. Foliola 4-plo breviora bipartita, cruribus subulato-setaceis 4-5 ¢. longis angulo preelato, seepe 180°, divaricatis, Flores dioici: @ in ramo persxpe brevi termiinales, cum innovatione simplice. Bractez foliis subzequales, erectz, fere libere, biloba, vix complicate, subspinulose, lobo subulato-acuminato, lobulo multo breviore apice bidentato; bracteola angusta fere linearis apice bifida. Perianthia subemersa urceolata praalte 5-carinata, apice lato recte trun- cato clauso brevissime rostellata, carinis apice dilatatis alaque pauci- laciniata auctis. Andreecia terminalia seepe polyphylla; bracteze rotundo-naviculares sub= equaliter complicate: submtticee, ad carinam pellucido-muricate. L. inchoata Meissn. (Syn. H. 343) descripta est “foliis divergentibus sursumque Yersis,” .. . “amphigastriis ovato-triangularibus;” ceterum nostrati tam similis quod eandem speciem esse fere censerem. Obs. At Baiios, at the foot of Tunguragua, I gathered a form beset with a thick coating of adventitious ramuli, arising either from the leaves or (rarely) from the branches. They bear leaves redticed almost. entirely to the basal sac, beyond which the lobe projects as a small triangular denti- form limb.—The flagelliform branches of the normal state bear small pellucid ovate acute leaves almost or quite destitute of basal sac. Suscenus XXIIL—LEPTO-LEJEUNEA, S. Pisilla, matrici arctissime adherens, planissima, pallide viridis flavidave raro fuscidula; Caules }-1 poll. longi, sape in orbem radiati, pinna- tim ramosi. Folia horizontalia, dissita contigtiave, siccando immutata v. recurvo-crispa, pro more anguste oblonga, 2-3-plo longiora quam lata, rotundata, rarius subacuta, rarissime 2—3-cuspidata, integerrima v. rarissime hic illic paucidenticulata, recte complicata; lobulus 2-4-plo brevior rhom- boidevis subplanus interdum obsoletus; cellule mediocres, pariete subincrassato vel non; inferiores paucs perseepe duplo majores in ocellum irregularem ageregatie. Foliola parva bipartita, basi brevissime late cuneata, segmentis setaceis divergentibus, elongatis—raro basi altiora, cruribus ad cellulam unicam redactis. Flores monocici; in paticis dioici: 9 in ramo brevissimo terminales—quasi- laterales, innovatione in perpaucis brevi simptice, in plurimis nulla, suffulti. Bracteze foliis subequimagnee parum inequilobee, seepius obtuse, integerrimee vel serrulatee, cum bracteola lanceolata bifida alte connate. ‘ ; Perianthia emersa obpyramidato-5-carinata, carinis apice dilatato trun- TRANS, BOT. SOC. EDIN. VOL. XV. 238 194 LEPTOU-LEJEUNEA. catis—interdum in cornu subulatum subhorizontale protractis, leevibus v. apice scabris. Andrecia ramulum totum vy. ejus apicem solum tenentia; bractez 3-6-jugee foliis paulo minores laxiusculz, diandrie. Hab, fere constanter foliicola, in arboribus, raro etiam in herbis fili- cibusque; rarissime in ramulorum cortice. In planitie abundant, in mon- tibus humilioribus rariores, altioribus omnino exules. Distr. In sylva Amazonica, rarius etiam in Andium devexis tam occi- dentalibus quam orientalibus, paulo supra 1000™ ascendentes, 6 species legi, quarum 3 novas; ceterum L. elliptica L. et L. per Americam tropi- cam late dispersa est; L. polyrhiza Nees et crucianella Tayl. jam antea in Guiana Gallica et Anglica invente fuerunt. E regione paleotropica habemus L. vitrea Nees (Java, Manila, etc.) et L. elliptica (ex insulis oceanicis et Ceylon). §1. Rami 2 simplices. A. Flores monoict. 1. L.-L. elliptica. F. oblongo-lanceolata obtusa v. subacuta basi parvi- ocellata ; cellule leptodermes. Foliolum infraaflorale parvulum cuneatum integrum. Br. cuneate ad } bifidee. Perianthia breviter obpyramidata, carinis truncato-cornutis integerrimis, 2. L.-L. exocellata. F. obovato-lanceolata exocellata ; cellule pariete subincrassato. Foliolum infraflorale majusculum truncato-bicuspi- datum, Br. late lineares breviter bifide. B. Flores dioici. 3. L.-L. ligulata. F. ligulato-oblonga fere 3-plo longiora quam lata. Foliolum infraflorale magnum pentagonum truncato-biapiculatum. Per. clavato-pyriformia, carinis apice in cornu subulatum dilatatis. § 2. Rami 2 innovatione brevi simplice auctt. 4, L.-L. polyrhiza. F. in sicco flavida rhomboideo-oblonga basin versus plerumque grandi-ocellata. Per. urceolata 5 carinata, carinis superne alzformibus, apice truncato (angulo externo peracuto) subspinulosis. § 3. Fl. 2 ignoti. 5. L.-L. crucianella. F. rhomboidea apice 3-cuspidata. Foliola bipartita, cruribus setaceis, altero seepe obsoleto. 6. L.-L. trigonostipa. F. lanceolata acuta obsolete denticulata, ocellata. Foliola obtriangularia apice przlato truncato minute biapiculata. 1. Lepro-LEJEUNEA ELLIPTICA (L. et L.) Jung. elliptica L. et Lg. in Lehm. Pug. V, 13; Lejewnea e. Syn. Hep. 403. Hab. In sylvis fl. Negro, ad arborum folia, frequens, precipue juxta cataractas.—Per Americam tropicam dispersa videtur, F -35x‘18; lob 1v0; ¢ 4; f* 32; br 3-35; dr'* 35x85 per 35 x25; br f 15mm, Late effusa, tenuissima, pallide viridis, sicceando subfuscescens difficillime emollitura, Caules arcte repentes }-}-pollicares laxe pinnati, LEPTO- LEJEUNEA. 195 Folia dissita subplana oblique oblongo-lanceolata (long.=2 lat.) v. sub- rhomboidea, obtusa v. subacuta, exocellata v. sepius ocello parvo subbasali quasi-perforata, recte complicata ; lobulus 3-plo brevior subrectangularis acutus subinflatus; cellule subparve valde lepto- dermes fere vacux, marginales paulo minores subquadratz, inferiores sensim submajores, una alterave ceteris duplo majore ocellum sistente. Foliola bipartita, basi integra brevissima cuneata; crura setacea tenuis- sima 3c. longa subdivergentia. Flores monoici: Q in ramo brevissimo terminales, innovatione nulla. Folium infraflorale unicum parvum subrotundum, foliolum par- vulum cuneatum integerrimum. Bractee f. caulinis subsequilongee cuneate ad } bifidee, lobis triangularibus acutis, postico subminore; bracteola basi utrinque connata linearis v. subeuneata breviter bifida, segmentis acutis: omnes integerrime. Perianthia vix emersa obpyramidata brevissime rostellata, 5-carinata, carinis superne sensim dilatatis apice truncatis acutis integerrimis. Andreecia ramulo cauligeno sistentia, raro ramum terminantia; bractez sub 3-juge laxiuscule foliis plus duplo breviores ovoideo-rotund subeequilobe. 2. Lepto-LEJEUNEA EXOCELLATA, Spruce. Hab. Andes Peruviz ad Tarapoto, in foliis vivis. F -45x°25, lob “1 v.03; ¢ ge; fl ‘1; br. 3; per °5x‘3; andrecia 4-5 x 4mm, Pusilla pallida in sieco subfuscescens, tenera, in maculas circumscriptas prostrata. Caules }-}-pollicares arcte repentes pinnatim ramosi. Folia dissita pellucida plana suboblique ovali-vel obovato-lanceolata sub- acuta, rarius obtusata, exocellata; lobulus rectus parvus rhomboideus incurvus, interdum obsoletus; cellule subparvee hexagonze, marginales quadratze, subobscuree, intus sinuatze, parietibus subincrassatis, paucee subbasales .ceteris sensim submajores neque in ocellum aggregate, omnes subplanz. Foliola distantia bipartita, disco radicellifero cum cruribus subulato- setaceis 4 cell. longis divergentibus constantia. Flores monoici: @ im ramo simplice brevissimo, folio unico parvo rotundo folioloque majusculo 5-gono-rotundo, apice lato truncato bicuspidato, stipato, terminales. Bracteze foliis $ breviores ligulatze v. lato-lineares subplanze (nec complicate) bracteolaque conformis basi connata apice breviter bifidze, segmentis erectis linearibus obtusis, integerrime. Perianthia emersa f. caulinis sublongiora obpyramidato-pyriformia, szepe ineurva, 5-carinata, vix rostellata, carinis superne sensim dilatatis, apice lato subhorizontaliter truncatis v. 2 posticis in cornua brevis- sima porrectis, sublzevissimis. Andreecia cauligena, pro plantula magna, ovato-globosa, compressa ; bracteze subtrijugee confertze foliis fere eequimagnze obtuse complicate eequilobze, brevissime bifidze, lobis dimidiisve fere semicircularibus obtusis ; antheridia bina magna, _ Alia specimina ex eodem loco bracteas habent magis profunde bifidas lobis subineequalibus, bracteola subacuta. 196 Lrepro-LEJEUNEA. Forsan pro var. L, elliptice habenda, differt autem statura submajore, foliis interdum basi angustatis (i.e. obovato-lanceolatis), constanter exo-= eellatis, cellulis obscurioribus subpachydermibus, jfoiiole infraflorala con- spicuo pentagono bicuspidato, perianthio majore, bracteis perangustis, 3. Lepto-LEJEUNEA LIGULATA, Spruce. Hab. In sylva Amazonica haud infrequens, circa 8. Gabriel fluvii Negro preecipue, raro fertilis. f’-4x +15, lob ‘1, o g™™; fi 3-4 cellulas longa; br 353; per 8x ‘*35™™. Pusilla arcte repens viridis, siccando fusca nigrescensve, haud facile emol- lienda. Caules in orbem diametro pollicarem radiati, subbipinnati, ramis sparsis, raro intricatis, Folia distantia patentia plana, siccando recurvo-crispula, ligulato-oblonga- lanceolatave, triplo fere longiora quam lata, obtusata, subrecte com- plicata; lobulus 4-plo brevior ovato-fusiformis inflatus; cellulee par- vulz subconformes 4-6-gonee, parum elongate pellucids (fuscidule tamen), chlorophyllo parco, pariete ad angulos et media latera sub- incrassato, Foliola distantia minuta bipartita, eruribus divaricatis subulato-setaceis 3-4 cellulas longis, basi 2 cell. latis. Flores dicici: .2 in ramo perbrevi, foliis minutis unijugis (vel unico) cum foliolo magne diftormi, stipato, terminales, innovatione nulla. Bractez foliis caulinis subbreviores, obovate ad 4 bilobe, lobis obtusatis, postico paulo angustiore; bracteola utrinque cum bracteis altiuscule connata lanceolata ad } bifida, segmentis acuminulatis. Foliolum infraflorale (sive bracteola exterior) caulinis valde diversum, dimidium folium excedens, orbiculari-pentagonum, apice truncato- biapiculatum, textura firma subopaca. Perianthia alte emersa clavato-pyriformia, superne 5-carinata, carinis in cornua breviuscule subulato-acuminata patentia protractis, A L. polyrhize floribus dioicis, ramo 9 haud innovato, foliis lohulatis exocellatis, cornibus perianthii patentibus, bene distincta, 4, Lepro-LEJEUNEA POLYRHIZA, Nees, In G. L, et N. Syn. Hep. 403, Hab. In sylva Amazonica, precipue ad fl, Negro superiorem, frequens, foliicola; etiam in Guiana Gallica., f 35 x "2, 23x15; ¢ Bh—dg; fi ‘15; br. lob. 35; br -35 x°13; per “4x Boman, Pusilla, viridis, siccando flavida, sat facile emotlitura, arcte repens. Caules 4-4 poilicares, pinnati et bipinnati, rami crebri—szepe eodem numero ac folia caulina—ramulique paucifolii, foliis ad singulum rainulum 8-5-juvis, Folia contigua patula (angulo axiali 70°) swbassurgentia, rhomboideo- eblonga subacuta v. seepius obtusata, plana, margine autem recurvulo repando opaco, ocellata; lobulus seepissime 0, ramorum rariu praesens, 4 folio paulo brevior, Hineari-rhomboideus apiculato-acutua subplanus; cellulase medize parvule pellucidee vix incrassatee, 2-1¢ inferioves duplo rmajores v sparse y. seepius in lineam maculamoO _ Lepro- LEJEUNEA, 197 eollectee, marginales autem mediis 4 minores opacee; omnes parum prominule. Foliola bipartita: crura divaricata, fere horizontalia, setacea, cellulas 4-6 uniseriatas (basi sola biseriatas) longa, ramorum breviora minus divergentia. Radicellee in discum radiate, seepe in mucum solute. Flores monoici: ? in ramo brevi, foliis 1-2-jugis vestito, raro longiore, terminales, innovatione brevi (foliis 2-3-jugis stipatis) suffulti. Foliolum inftraflorale ovale, ultra $ bifidum, segmentis acuminatis. Bractez foliis equilong serrulate, cum bracteola zquilonga lanceo- lata, ad 4 bifida, segmentis acuminatis, alte connate, bilobze sub- complicate, lobo ovali obtuso acutove, lobulo paulo breviore duplo angustiore apice bidentulo. Perianthia paulo emersa late obpyramidato-urceolata vix compressa 5- carinata, carinis superne aleeformi-dilatatis truncatis apiceque triangu- lari acuto v. subacuminato papillosis spinulosisve, apice ipsius peri- anthii conum humillimum sistente. : Andreecia ramos terminantia; bracteze sub 3-jugze laxiusculz foliis sensim minores cymbiformes inzequaliter bilobe. Ad 8. Gabriel advenit altera forma foliis minus conspicue ocellatis, margine pellucente vix recurvulo celluloso-erosulo, androeciis lateralibus. 5. Lepto-LEJEUNEA CRUCIANELLA, Tay]. In Lond, Journ. Bot. (1846), p. 293. G. L. et N. Syn. Nep. 757. Hab. Mandos, ad fl. Negro ostia, in arborum foliis et filicibus repens. Demerara, in Redule sp. repens (fide Taylor). F “18 x “08, Joh -07™™, Minuta viridis, siccando fuscidula. Caules 4-pollicares arcte repentes laxe subpinnati. Folia dissita rhomboidea vel rectangulari-oblonga, apice plerumque 3- cuspidata, dente medio triangulari-acuminato vel late subulato, antico seepe obsoleto, recte complicata (vel non); lobulus vix triplo brevior rhomboideus planus vel convoluto-subinflatus, persepe _ _ nullus; cellulz parvulze subconformes subelongate. Foliola bi-(raro uni-) crura, interdum obsoleta; cruribus subulato- setaceis 4 cell. longis. Flores dioici: 2 non aderant. Andreecia in ramis terminalia subju- lacea; bracteze 3-5-jugee, foliis paulo breviores oyoidez mutica, 6. Lepro-LEJEUNEA TRIGONOSTIPA, Spruce. Hab. Chimborazo, in arboris folio, aliis Lejewneis immixta, F 55 x ‘25, lob -18; ¢ 3™™. Pusilla tenuis flaccida, pallida, siccando fuscidula, Caules 4-pollicares prostrati laxe pinnati. Folia dissita patula fere plana lanceolata acuta hie illic cellula exstante erenulata denticulatave, recte complicata; lobulus 3-plo brevior, solum ad plicam inflatus, ovalis truncatus apiculato-acutus; cellule leptodermes, vix chlorophylliferee, paucee (sub 8) basin versus ezeteris longiores, vacuze, szepe in series 2 contiguas lineares congeste, Folicla minuta obtriangularia apice prelate truncato utrinque cellula unica parva apiculata, radicellifere—seepe tam foliola quam radi- cellz in mucum soluta. 198 LEptTo-LEJEUNEA. Amenta ¢ f. caulino duplo longiora; bracteze laxe julaceo-imbricate sub 6-juge subrotundo-saccatee compresse. Foliis L. stenophylle L. et G. Syn. Hep. 769, sat similis, foliolis longe diversa, Suscenus XXIV.—CHRATO-LEJEUNEA, 8S. Plants pusilla vel sat robust, colore lurido scepissime insignes, nitidze tamen interdumque quasi vernicosee, rufescentes, rufo-badize vel fere nigre, rarissime pallidee vel virescentes, post siccationem facile aqua saturandie, citoque iterum exsiccande, ceespites depressos, szepe latis- simos denseque stratificatos efticientes. Caules prostrati, vix unquam suberecti, ramis autem in paucis speciebus assurgentibus; sat validi, inzequaliter (raro symmetrice) pinnatim ramosi. Folia contigua vel seepius subimbricata, nunquam densa, apice plus minus decurva, in sicco insigniter fornicata involutave, oblique ovata ob- longave, aliorum specierum dimidiata subfalcataque, inferiora seepius obtusa rotundatave, superiora seepe subacuta, raro acuminata, apice v. integerrima v. (sepeque in eadem specie) dentata, raro toto fere margine serrulata, basi plerumque cellulis paucis magnis ocellata; exter cellule subparvee pellucidee, pariete fere semper tenui fusci- dulo; lobulus parvus minutusve inflatus, raro obsoletus, foliorum rameorum tamen 2 infimorum szpe maximus, imo totum folium in utriculum reniformem facie supera perforatum involvens. Foliola in pusillis parva, foliis caulinis 3-6-plo breviora, subrotunda, ad 4 bifida, in elatioribus cordato-ovata-reniformiave, folii dimidium v. totum sequantia, apice pro more breviter bifida bidentatave, in omnibus integerrima vel rarissime utrinque 1-dentata (in L. Brasilienst, quam nondum vidi, “ denticulata” dicuntur). Flores in aliis monoici, in aliis dioici. Ramus ? brevis longiorve—nun- quam ad florem solum redactus—plerumque uniflorus, semper tamen innovatione, vel unilaterali vel duabus oppositis, auctus. Br. erectze foliis subsimiles, plerumque acutiores magisque dentate, lobulo ma- jore explanato; bracteola plus minus late ovalis bifida. Perianthia pro more emersa, urni-vel pyriformia vel obconica, 4- (raro 5-) carinata, carinis plerumque humilibus, seepe papulosis, ultra perianthii apicem truncatum brevi-rostellatum fere constanter in cornua breviora longiorave—interdum longissima—varie patula, protractis. Capsula subglobosa. Andreecia fere semper ramulo proprio constantia, raro terminalia, brevi- raro longi-spica; bracteze in paucis minutee, in plurimis majuscule. Hab. et Distr. In sylvis Amazonicis umbrosissimis, preecipue ripariis, valde frequens, ad arborum corticem, ramulos et folia viva, ad truncos inundatos (raro ad putrescentes) saxaque, plagas seepe preelatas, inter- dum pro aspectu funereo insignes, efficiens. In Andium montes humiliores raro et sporadice ascendit; in sylva Canelos autem, alt. 1000-1500 m. species duas pulchras, ut videtur novas, reperi; in M. Chimborazo, eadem altitudine, speciem singularem, L. spinosam Gottsche, antea in insulis Antillanis inventam, legi. In tota America tropica abundare videntur species, in céeteris terris tropicis tamen multo rariores.—Bene dicunt cl. auctores ‘Synopseos Hepat.’ “Plante hujus sectionis inter se maxime congruz difficillime sunt CERATO-LEJEUNEA. 199 dignoscende.” In sylvis Amazonicis formas innumeras maxima copia legi, easdemque iteratim examinavi, inter fere omnes tamen limites specificos mihi satisfaciendos frustra queesivii—E speciebus circiter 17 autem a meipso lectis 12 nove videntur. Obs. Cum hoc subgenere congruit pro majore parte Lejeunea § 3 Cera- tanthe Syn. Hep. p. 395 et seq. A. Foliola parva, foliis caulinis 3-6-plo minora, subrotunda, nunquam cordata.—Plantz pro more pusille, rufo-badiz, raro pallidze, nunquam nigricantes. a. Flores monoict. a. Caules symmetrice pinnati bipinnative. Folia siccando margine valide incurva exindeque ad speciem dissita. Utriculi magni erebri. Andrecia tenuispica, bracters minutes laxiusculis. 1. C.-L. plumula. Folia faleato-divergentia, semiovata; superiora ramea- que subacuta, margineque fere toto argute serrulata, basi ocellata. Foliola foliis caulinis 6-plo breviora ovalia ad $ bifida. Bracteze serrulate; bracteola ligulato-oblonga breviter bifida subintegerrima. Perianthia parva subturbinata obscure 4-gona longicornia, cornibus erectis linearibus compressis. 2. C.-L. megalophysa. A pr. differt foliis omnibus paucidenticulatis in- tegerrimisve, exocellatis ; foliois duplo majoribus; bracteola ovali- orbiculata; perianthii argute carinati cornibus perbrevibus patentis- simis. ay. Caules inequaliter pinnatim vel vage ramosi. Folia siccando apice valide decurva devolutave. Utriculi nulli, vel perrart parvique. Br. & majuscule confertiuscule. 3. C.-L. cubensis. Caules subbipinnati, ramis assurgentibus. F. subfalcata divergentia fornicata dimidiato-ovata abrupte acuta, apice denticulata, basi ocellata, lobulo majusculo turgido. Foliola 3-plo breviora sub- orbiculata ad 3 bifida, segmentis acutis. Br. serrulate; bracteola lanceolata ad 4 fissa. Perianthia pyriformia 4-carinata, cornibus brevissimis erectis obtusis. Andreecia longispica.—Var. guianensis, foliis planioribus seepe obtusatis integerrimis, lobulo interdum obso- leto, br. seepe integerrimis. 4. C.-L. rigidula, Caules elongati in planum laxe pinnati. F. obliqua (non prorsus dimidiata) acuta obtusave apice subserrulata, lobulo minuto obsoletove, obscure ocellata. Foliola 3-4-plo minora ovali- rotunda ad 4 fissa. Br. subserrulate; bracteola ovali-rotunda ad 4 fissa. Per. obconico-oblonga, 4-carinata, cornibus patentissimis tenui- usculis czteri perianthii dimidium vix equantibus. Andr, medi- ocria. aa. Flores diotci. 5. C.-L. commixta. Caules subelongati subbipinnati. F. subcontigua planiuscula oblique ovata obtusata integerrima planiuscula ocellata, lobulo 4-plo breviore conspicuo. Foliola vix 3-plo breviora ovali- rotunda ad 4 bifida. Br. subintegerrime; bracteola lanceolata ad 4 bifida. Per. obovato-oblonga, carinis valde pellucido-tuberculosis, cornibus perbrevibus late patulis. 6. C.-L. monticola. Caules czespitosi suberecti parum ramosi. F. iis L. cubensis var. guianensis similia, Foliola ovato-rhombea ultra $ bifida, 200 CERATO-LEJEUNEA. seomentis peracutis. Br. majores. Per. majora urceolata, corni- bus brevi-conicis compressis fere horizontalibus. Andr. brevispica plerumgq, terminalia. 7. C.-L. luteola. Albido-lutescens tenera, caule brevi repente paulo ramoso, F. oblique semicordato-ovata obtusata subintegerrima, lobulo inflato. Br. acute superne subserratee; bracteola subovalis breviter bifida, utrinque bracteis connata. & C.-L. caducifolia. Pusilla rufescens, caule vage ramoso ramisque tenuibus e foliis deciduissimis plus minus denudatis. F. subcontigua late semiovato-oblonga falcata, apice rotundo obttisove, margine re- pando celluloso-crenulato, ocellata; cellule minutule. Foliola 4—5-plo breviora ovali-rotunda, seepe utrinque 1-dentata, ultra $ bifida. Ramus 9 sepe innovando-florifer. Br. integerrimee. Per. obovata truncata 4-5-gona, ecornia. B. Foliola pro more magna, + folium subequantia, nonnunquam maxima, foliis viz minora, sepe cordata, haud raro rentformia.—Plante robustiores, rufo-ferrugine-badizeve, aliz nigricantes. Fl 2 frequenter dichoto- iniales. b. Flores monoict. 9. C.-L. Coarina. Rufo-badia, caule elongato vage ramoso. F. semi- cordato-oblonga seepius rotundata integerrima, raro apice subdenti- culata, exocellata, lobuloinflato. Foliolainferiora parvula, superiora foliis duplo (v. perpaulo) minora cordato-orbiculata ad 4 bifida. Br. foliis minores, subacute seepius integerrimee; bracteola ovali-orbicu- lata ad 3 bifida. Per. alte emersa clavato-oblonga truncata, supra medium 4-carinata, cornibus vel O vel brevissimis triangularibus patulis. Andr. f. contiguo paulo longiora. 10. C.-L. variabilis. Ruto-badia raro nigricans. Caules insequaliter pin- nati et subbipinnati. F. late semicordato-ovata abrupte acuta inte- cerrima, lobulo inflato, ocello nullo, Foliola increscentia, superiora foliis vix duplo breviora, interdum sequimagna, cordato-ovata oblata ad 4 bifida, segmentis acutis. Br. f. breviores subacutee seepius den- ticulatee; bracteola ovalis vel suborbiculata ad 4 bifida, segmentis acuminatis. Per. obconica superne 4-5 carinata, cornibus elongatis subulatis patentibus., Andr. f. contiguo subequilonga—Var, sub- serrata, f. apice serrulatis, lobulo seepe obsoleto, bracteis subspinu- losis, perianthiis hrevioribus.—Var. saproxylophila, f. apice serrulatis, foliolis maximis, ad } alt. solum bifidis, br. acuminulatis inciso- serratis, per. cornibus fere horizontalibus. 11. C.-L. rufo-pellucida. Rufa insigniter pellucida, F. dimidiata sub- divergentia, apice abrupte acuto argute v. subduplo serrulata, exocel- lata, lobulo inflato, Foliola superiora 4 f. superantia. Bracteze acuminulate argute serrulate, Per. obpyramidato-cylindrica, cor- nibus longis late patentibus, Andr. longispica. bb. Flores dioici. 12. 0.-L. fuliginosa. Nigro-fusca. Caules elongati laxe subpinnati. F. inferiora dissita ligulato-oblonga, superiora subimbricata oblique ovato-oblonga rotundata, raro subacuta, exocellata. Foliola=4 fol. raro majora, orbiculato-ovata ad 4 bifida, segmentis acutis. 13. O.-L. hylophila. Olivaceo-rufa. Cates vage ramosi vel ex p. dicho- tomi. F. subimbricata decurvo-concava subdivergentia, late semi- ovata rotundata subacutave integerrima exocellata, lobulo parvo CERATO-LEJEUNEA. 201 saceato. Foliola variabilia foliis fere aquimagna vel rarius 2-3-plo minora, sinu baseos profundo, apice ad {—} bifida, segmentis subacutis. Br. serrulatz acute, v. altera obtusa; bracteola ovalis rotundave breviter bifida serrulata. Per. elongata obeonico-cylindracea, cornibus longis suberectis Andr. breviuscala.—Var. subdenticulata, foliis apice 2—3-denticulatis, foliolis subminoribus. 14. C.-L. microrhegma. Rufo-fusca. Caules paulo ramosi. F. patentis- sima subfalcata subsemicordato-oblonga, apice rotundato serrulata, exocellata, decurrenti-lobulata. Foliola foliis seequimagna insigniter cordato-reniformia, apice rima brevissima solum 4 ¢. alta bidentula. Fl. 2 innovatione unilaterali. Br. spinulosz, lobulo obtuso; brac- teola ovalis apice bidentata basi constricta. Per. oblonga, cornibus preelongis suberectis. 15. C.-L. maritima. Rufo-badia, dense depresso-ceespitosa. F. oblique semiovato-oblonga, apice seepius obtuso serrulata. Foliola subduplo breviora, superiora valde oblata reniformia, basi rotundata (nec cor- data), apice breviter bifida, segmentis acuminatis, Andr. longi- spica. 16. C.-L. platyceras. Rufa. Caules inequaliter pinnati. F. late di- midiato-ovata subacuminata acuta, margine fere toto argute dentato- serrata, parviocellata, lobulo saccato. Foliola 2-8-plo minora orbi- culata ultra 4 bifida, segmentis acuminulatis, serrulata. Br. acute crebre spinuloso-serrate; bracteola ovali-lanceolata fere ad } bifida serrulata. Per. urniformia, carinis 4 papulosis, cornibus patulis brevibus latis plerumque subevolutis ore hiante crenatis. Andr. brevispica seepe terminalia. 17. C.-L. spinosa. Rufa, fragilis. Caules prelongi parce ramosi. F. oblique semicordato-ovata subulato-acuminata acuta, margine postico apiceque spinuloso-serrata, lobulo minuto, exocellata. Foliola f. duplo breviora ovata ultra 4 bifida, segmentis tenui-acuminatis. Br. acuminate ciliato-spinos ; bracteola ovata profunde bifida, seg- mentis longissime acuminatis, integerrima. 1. CeRATO-LEJEUNEA PLUMULA, Spruce. Hab. M. Guayrapurina Andium Peruv., ad filices (alt. 1000 m.); fl. Negro et Uaupés in arborum foliis ; e rarioribus. F ‘85 x°6 ; lob 13; ¢ dy; f'* 15x "12; br 55; per 55x °4; br J -1™™ Rufo-fuseca prostrata arcte repens. Caules 3-1 pollicares, pulchre plumeeformi-pinnati raro subbipinnati. Folia subimbricata falcata divergentia dimidiato-ovata obtusata v. abrupte acuta, basi antica dilatata subsemicordata, margine postico recto v. concavo in caulinis integerrima, antico rotundato supra medium apiceque angulata subdenticulatave, ramea tamen (caulinis duplo minora) margine fere toto argute serrulata, sinuato-compli- cata; lobulus parvus folio caulino 6-plo brevior ovatus inflatus exciso-acutus; cellule mediz parvulz, versns folii marginem anticum minores, versus posticum et inferiores majores, 3-6 prope basin ceteris duplo longiores in lineam ocellumve dispositee. Utriculi magni ad ramorum basin frequenter adsunt, globoso-reniformes, facie interna subimpressi centroque perforati. Foliola minuta foliis caulinis fere 6-plo breviora ovalia ad 4 bifida, laciniis acutis. TRANS. BOT. SOC. EDIN., VOL. XV. 2¢C 202 CERATO-LEJEUNEA. Flores monoici: 2 in ramo brevissimo terminales, innovatione simplice suffulti. Bracteze foliis dimidio breviores complicato-bilobe, lobo obovato apice serrulato, lobulo subbreviore angustioreque lanceolato; bracteola ligulato-oblonga breviter bifida subintegerrima. Perianthia parva vix emersa badia obovata subturbinatave obscure 4-angula, demum fere teretia; apice in cornua 4, reliquo perianthio vix breviora, linearia, ligulata clavatave obtusata compressa erecta v. conniventia, porrecta. Andreecia ramulo tenui constantia ; bractese 4-6-juge minute subdissite naviculares dorso papulosie. Forma riparia, illa preecipue e S. Carlos, minus eleganter pinnata; folia tam caulina quam ramea argute serrata, basi vittata, ocellatave. L. Splitgerberiana, Mont. (in Guiana lecta) caule bipinnatim decom- posito, foliis semtcircularibus viridi-hyalinis, et perianthio obconico corni- bus reflewis, a nostra distincta, ceeterum haud absimilis. 2. CERATO-LEJEUNEA MEGALOPHYSA, Spruce. Hab. Ad. fl. Negro cataractas et fl. Uaupés, in palmarum arborumque foliis. L. plumule colore rufo, caule arcte pinnato, florescentiaque monoica convenit, differt ceteris caracteribus. Folia late dimidiato-ovata abrupte acuta obtusave, apicem versus paucidenticulata, vel caulina subintegerrima, subrecte lobulata, lobulo minuto, cellulis inferiori- bus sensim majoribus, ocello proprio nullo. Foliola is L. plumule duplo majora, =} folii, vix ultra § bifida. Bractez pauciserrulate; bracteola ovali-orbiculata breviter bifida, Perianthia oblongo- urniformia minute rostellata, alte argute 4-5-carinata, carinis apice in cornua perbrevia patentissima subacuta vel truncato-denticulata dilatatis.—Utriculi magni crebri.—Folia qualia L. plumule insig- niter incurvo-canaliculata, unde planta crispula evadit, post sicca- tionem preecipue. . 3. CeRATO-LEJEUNEA CUBENSIS, Mont. Hist. physic. etc. de Cuba, 481, t. 18, f. 2. Hab. Per totum flumen Negro, in arborum truncis ramulisque, raro in rupibus. F 45x °35; lob ‘15; ¢ per ‘55 x *35™™, — Jy 3 fle 15 x15; br. lob 55 x ‘33; br'# 4x 2; Pusilla, caespitosa, e viridi rufula, sicca flavida. Caules 4—3-pollicares pro- strati ineequaliter subbipinnati, ramis brevibus assurgentibus arcuatis. Folia imbricata decurvo-fornicata subfalcata dimidiato-ovata oblique abrupte acuta, margine antico apice denticulata raro subintegerrima, subsinuato-complicata ; lobulus triplo brevior sat conspicuus sub- transversus semiovatus turgidus, rarissime ad plicam redactus obsoletusve; cellule fere minutulz pellucidee ambitu anguste opace, 1-4 prope folii basin duplo longiores primum materia grumosa obscuratee, demum vacue. Utriculi nulli vel rarissimi. Foliola dissita folio 3-plo breviora suborbiculata, ad vel paulo ultra } bifida, segmentis acutis. CERATO-LEJEUNEA. 203 Flores monoici; @ in ramo brevi longioreve terminales, innovatione simplice suffulti. Bracteze foliis sublongiores, ad ? bifida, compli- cate, acute, subserrulate v. grosse serrate, raro fere integerrime, lobis obovato-lanceolatis, inferiore breviore angustioreque ; bracteola lanceolata ad 4 bifida, segmentis acutis, integerrima. Perianthia vix emersa pyriformia subcompressa, marginibus acute carinatis, postice ventricosa obscure bicarinulata, apice in 3 v. 4 umbones cornuaye brevissima erecta obtusa producta, demum 3—4-fida. Capsula spheerica. Andreecia pro more longispica, ramum totum—raro ejus apicem solum— tenentia, julacea ; bracteze 4-10-jugze sat magne imbricatee. Prope Mandos fluminis Negro, in arboribus humilibus planitiei arenosi “Umirisil” dicti, advenit forma pulchella dense ceespitoso-stratificata, foliolis late ovalibus apicibus acuminatis. The ocellus near the base of each leaf consists normally of 2 (rarely more) enlarged cells, covered on their under surface with a grumous greenish waxy mass, which is easily removable and finally falls away, leaving the cells scariose, pellucid and nearly empty. It therefore pro- bably exudes from the cells, but whether it is a fungous growth, ora morbid state of the chlorophyl I am unable to say. Var. guianensis N. et Mont. (sp.), Mont. in Ann. Se. Nat. 1840. Hab, Pard, ad arborum truncos, cum Frullania exili Tayl., necnon per fl. Negro sylvas. Pro L. Cubensis var. habenda; differt autem caule longiori, szepe pollicari, in planum fere ramoso; foliis planioribus rotundatis obtusatisve raro subacutis, fere constanter mtegerrimis, lobulo 4-plo breviore haud raro obsoleto; foliolis foliis 4-plo minoribus; ramis ? seepe iteratim innovatis; bracteis integerrimis raro serrulatis ; perianthii cornibus perbrevibus quidem paulo distinctioribus quam in typo. —L. Martiana Gottsche, Syn. Hep. probabiliter pro L. quianensis forma habenda. 4, CERATO-LEJEUNEA RIGIDULA, Nees et Mont. Ann. Se. Nat. 1840; G. L. et N. Syn. Hep. 371. Hab. In fl. Negro sylvis, adarborum truncos, ramulos foliaque viva, necnon in palmarum foliis, nunquam in truncis putrescentibus. Guiana Gallica (Leprieur). F-7x°5, 6x 43, D5 x°4; lob “1; ¢ Jays fl 215; br 6; br -4x 35; per “75 x°4 (lat. infra cornua) 4™™, Rufo-badia prostrata. Caules 2-pollicares tenues flexuosi laxe pinnati, ramis planis, raro subbipinnati, Folia parum imbricata subfalcata oblique semiovato-oblonga, apice ob- lique acuto obtusove subserrulata raro integerrima, subrecte com- plicata; lobulus minutus ovatus inflatus interdum obsoletus; cel- Tule parvulee pellucid, 5 v. 6 basin versus majores ocellum indis- tinctum efformantes. Utriculi rari. Foliola foliis 3-4-plo minora ovali-rotunda ad $-bifida, seementis acutis. Flores monoici: ? in ramo innovando terminales. Bracteze foliis subze- quales subserrulatie, lobis acutis obtusisve, inferiore duplo minore; bracteola ovali-rotunda ad } fissa. 204 CERATO-LEJEUNEA, Perianthia subemersa obconico-oblonga 4-carinata-cornutaque, carinis papulosis in ztate subobsoletis, cornibus tenuiusculis late patenti- bus interdum fere squarrosis longitudine variis semper tamen czetero perianthio duplo brevioribus. Andreecia cauligena mediocria; bracteze sub 5-juge. Cerato-Lejeunee Cubensis, quoad foliola parva huic similis, differt caule longiore fere in planum ramoso; foliis planioribus obliquis, vix autem dimidiatis, raro subocellatis; sed preecipue perianthii elongati cornibus sat longioribus patentibusque, Foliola magnitudine valde varia, aliorum ramorum duplo minora, nunquam tamev magna qualia in L. variabili, ete. Specimina Guianensia ex herb. Montagnei minime rigida sunt, post siccationem tamen difliciliter emollitura.—L. ceratantha M. et N., nisi pro foliis densis, vix diversa videretur. 5. CERATO-LEJEUNEA COMMIXTA, Spruce, Hab. Tarapoto, in Bryo-Lejeunea fruticosa Tayl. repens, cum L. plumula Spruce mixta. F 55x°4, lob 15; ¢ fe; fle 2153 per 6x 35™™, Rufo-badia, intricata, parum stratificata. Caules 4-1 poll. longi, in planum ramosi, arcte subbipinnati, ramis inzequilongis. Folia subcontigua oblique ovata (vix dimidiata) obtusata rotundatave integerrima planiuscula, basi antica dilatata non autem semicordata, ocello distincto cellulis 2-6 majoribus scariosis constante; lobulus vix 4-plo brevior conspicuus ovato-quadratus inflatus subsaccatus; cellule L. rigidula. Foliola vix triplo breviora ovali-rotunda ad $ bifida, segmentis acutis. Flores dioici; 2 in ramo brevi terminales, mnovatione simplice suffulti. Bractee foliis subeequilonge ultra 5 bifida, lobo anguste obovato- lanceolato obtuso, integerrimo, interdum apice angulato, lobulo paulo angustiore dimidio breviore lanceolato acuto; bracteola lanceolata ad + bifida carinata, segmentis acutatis, integerrima. Perianthia parum emersa obovato-oblonga 4-carinata-cornutaque, carinis e cellulis extantibus pulchre pellucido-tuberculosis, cornibus per- brevibus late patentibus. Cerato-Lejeunca plumula, mixta, foliis dimidiatis falcatis, apice acutis et argute serrulatis, facile distincta.—C.-L. rigidula floribus monoicis; lobulis foliolisque subminoribus, his orbiculatis; perianthia cornibus fere brevi- oribus erecto-patentibus, diversa est.—C.-L. luteola colore pallido, tene- ritate; caule multo minus ramoso; bracteis acutis serrulatis; bracteola ovali breviter bifida grosse serrata, differt. 6. CERATO-LEJEUNEA MONTICOLA, Spruce. Hab. In Andium Peruviee monte Guayrapurina, ad cortices vetustas, Cum L. Cubensi Mont. convenit statura pusilla, foliolis parvis (=folii #-4) &c., differt florescentia dioica et caracteribus sequentibus. Caules a basi brevi prostrata suberecti caspitosi parum ramosi. Folia angulo 60° patentia (nec divergentia) subdimidiata, margine postico recto basi recte complicata, lobulo parvo obsoletove, apice abrupte CERATO-LEJEUNEA. 205 acuta subintegerrima. Foliola ovato-rhombea ultra 4 bifida, seg- mentis peracutis. Bracteee iis L. Cubensis multo majores, *7™™ longee; bracteola “6x °3™™. Perianthia majora, ‘9x ‘6™" urceolata com- pressa apice late truncato rostellata, 4 carinata, brevicornia, cornibus brevi-conicis compressis, apice rotundatis, late fere horizontaliter patulis. Androecia seepius terminalia brevia ovoidea, bracteis 3-5- jugis majusculis. 7. CerATO-LEJEUNEA LUTEOLA, S, Hab. 8S. Carlos fl. Negro, in cortice vetusto: planta ? sola, sterilis. ease tob 1s 6a: f “15 x15; br “75; br"6 x“35e™. Ex albido lutescens vix rufula prostrata stratificata, pellucida tenera. A L. rigidula, affini, differt teneritate, colore pallido, florescentia dioica, caule brevi 4-pollicari repente paulo ramoso, ramis spe elongatis. Folia subimbricata arcuato-concava oblique subsemicor- dato-ovata rotundata obtusatave repanda integerrima, superiora raro apice obsolete denticulata; lobulus parvus inflatus; cellule subpar- vule fere vacue, pariete ad angulos subincrassato ; ocelli nulli, Bractez foliis submajores acutee superne parce grosse serrulatz, lobo ovali, lobulo breviore lanceolato ; bracteola subovalis breviter bifida apice grosse subserrata v. fere eequaliter 4-fida, utrinque cum bracteis connata. 8, CeRATO-LEJEUNEA CADUCIFOLIA, Spruce, Hab. Manaos, supra fluminis Negro ostia, in cortice. F' -42,x-35 ; lob 075-15 ; cp; f'*°1x:1; br. lobus 6x ‘2; br's 3x15; per “45 x ‘25mm, Pusilla, rufescens, plagas latas densiusculas formans. Caules }-pollicares vage ramosi implexi, ramique tenues flexuosi, e foliis deciduissimis— foliolis solis, rarius etiam lobulis, persistentibus—ex parte denudati. Folia subhorizontalia contigua vel parum imbricata, late semicordato- oblonga, falcata, apice rotundato obtusove recurvula, margine undu- lato-repanda insuperque celluloso-subcrenulata, basin versus cellulis 1-3 magnis ocellata; lobulus folio 3-6-plo brevior ovatus inflatus exciso-acutus, persepe deficiens; cellule fere minutule, iis ceeterum Cerato-Lejeunearum minores, subpellucide. Utriculi null. Foliola distantia, foliis 4—5-plo minora ovato-rotunda vel subrhombea, medio margine utrinque angulata v. raro unidentata, apice ultra medium bifida, seg¢mentis subacutis. Flores dioici: 9 in ramo spe iteratim innovando-florifero terminales. Bracteze foliis longiores complicato-bilobe, lobis planis lanceolatis acutatis integerrimis, postico subminore; bracteola paulo minor ob- longa vix ad 4 bifida, sinu segmentisque acutis. Perianthia foliis caulinis subequilonga obovata truncata brevi-rostellata 4-5-gona, ecornia. Ab omnibus affinibus facile distincta ! 9, Cerato-LeJEuNEA Coarina, Gottsche. Syn. Hep. 395. Hab. Ad rupes fluminis Negro cataractarum humectatas, necon ad arborum ramulos rivuli Cawapuna inundatos. (R. 8. 1853.) Ad fl. Coare ostia, flum. Amazonum afiluentis, legit cl. Marrrus. 206 CERATO-LEJEUNEA, F 65 x ‘5, lob *125, c Ass; f'* 3 x °4,°35 x 45, -4 x °55 (in var.); br 55; br? “b X40 per LO Kae: Rufo-badia late prostrato-stratificata. Caules 2-3 pollicares vage ramosi, in parte inferiore amentis ¢ sepe pinnulati. Folia subimbricata patula semicordato-oblonga, apice decurvo subobliquo rotundata obtusatave, integerrima, basi subrecte complicata; lobulus 5-plo brevior ovatus inflatus; cellule parve pellucide, parietibus fuscidulis, Utriculi nulli vel perrari. Foliola dissita vel contigua, foliis duplo breviora (in ramis fertilibus seepe 4-plo breviora) cordato-orbiculata, paulo latiora quam longa, ad vel paulo ultra + fissa, segmentis erectis acutis. Flores monoici: 9 in ramo brevi terminales, innovatione simplice, raro prolifera, suffulti: rarissime e dichotomia. Bracteze foliis minores ultra medium bifida, lobo oblique obovato lanceolatove subacuto, lobulo rhomboideo; bracteola ovali-orbiculata ad 4 bifida, segmentis acutis seepe imbricatis; omnes repandule integerrime. Perianthia altiuscule emersa, foliis dimidio longiora, clavato-oblonga pyriformiave, supra medium 4-carinata, carinis apice vel recte trun- catis vel seepius in cornua rudimentaria horizontalia triangularia dilatatis. Amenta ¢ crebra cauligena, folium vicinum paulo superantia; bractese sub 5-jugee mediocres. Obs. In iisdem locis advenit altera forma, megalostipa, foliolis folia fere equantibus; foliis apice valde decurvo-concavis, interdum apice subden- ticulatis; perianthiis apice lato recte truncatis ecornibus, vel carinis later- alibus brevissime cornutis. In Syn. Hep. 1. ¢. perianthia (probabiliter juvenilia) ‘ ventricosa ” descripta sunt. 10. CERATO-LEJEUNEA VARIABILIS, Lindenb. Syn. Hep. 399. Hab. In sylva Amazonica tota, preecipue juxta fl. Negro ripas, in arborum truncis, ramis, foliis, necnon in radicibus inundatis, etiam in filicibus etc., in saxis et in truncis putridis rarior; in Andibus vix ad alt. 1000m. attingit. F 85x65, ‘8x ‘6; lob ‘1-125; ¢ a; f* 5x °6, °45x'5 3. br "5s per 1°2x°45 3 cornua °254™m, Majuscula rufo-badia, seepe sublurida, raro nigrescens, pro more dense stratificata. Caules 14-3-pollicares prostrati insequaliter pinnati et subbipinnati. Folia imbricata late semicordato-ovata, interdum ovato-oblonga, apice decurvo abrupte acuta—v. inferiora rotundata—repandula integer- rima; lobulus minutus folio 6-8-plo minor inflatus; cellule sub- parvulz eequilaterze pellucide, inferiores sensim majores, ocello nullo. Utriculi adsunt. Foliola inferiora parva dissita, superiora increscentia subimbricata dimi- dium folium plus minus superantia, cordato-ovata, seepius oblata, ad } acute bifida, segmentis acutis. Flores monoici: Q in ramo terminales, innovatione unilaterali—raro duabus oppositis—suffulti. Bracteze foliis sat breviores profunde complicato-bifidee denticulate, raro subintegerrime, lobis subacutis, inferiore fere duplo breviore; bracteola ovalis v. fere orbiculata ad 4 bifida, segmentis acuminulatis, interdum serrulata. ° CERATO-LEJEUNEA. 207 Perianthia emersa obconica supra medium 4- (5-) carinata, carinis in cornua plus minus elongata—semper cétero perianthio breviora subulata, obtusa acutave, plus minus patentia, stricta recurvulave, porrecta. Andreecia folio caulino subeequilonga v. parum longiora; bracteae 3-5- (raro 6-) jugee majuscule subimbricate. Ad fl. Negra cataractas in rupibus advenit forma caulibus elongatis parallelis, ramulis ¢ et spe arcte pinnulatis. Cum eadem, necnon ad fl. Orinoco cataractas, legi formam megalostipam, foliolis folia fere eequantibus cordato-orbiculato-ovatis—vix unquam sub- reniformibus.—Huice valde similis est L. cornuta Lindenb.! in hb. Hook., e Guiana, Syn. Hep. 399, differt autem foliis ocellatis, perianthii corni- bus longis perfecte erectis. “L. cornuta” ejusd.! hb, Hook., ex ins. 8, Vincentis, aliena est, dioica, foliorum lobulis omnibus insigniter inflatis. Var. subserrata, 8. In iisdem locis ac typus habitat, Differt foliis minoribus apice serrulatis (55 x *43™™), lobulo seepe ad plicam minutam redacto vel etiam obsoleto ; cellulis minoribus (,;—;5™™); bracteis magis serratis v. etiam spinulosis ; perianthiis seepe immersis. Var. saproxylophila, 8. A typo differt foliis apice serrulatis semper sub- acutis; foliolis maximis folia superficie equantibus apice ad + solum bifidis ; bracteis acuminulatis inciso-serrulatis, bracteola latior quam longa spinulosa fere ad }-bifida, segmentis acuminulatis ; perianthii cornibus fere horizontaliter patulis. A var. subserrata diversa iisdem caracteribus insuperque foliis cellulisque majoribus, lobulo semper distincto inflato. Hab. ad fl. Uaupés et M. Guayrapurina, in truncis putridis——Primo visu species distincta videretur, quum tamen in typo, necnon in var. swbserrata, foliola ad eandem stirpem nune majora nunc minora inveniuntur, foliaque apice nunc argute serrata nunc fere integerrima, omnes pro unica specie valde vari- abili habendas censeo.—In omnibus formis frequenter adsunt utriculi magni, ad ramorum basin bini oppositi; constant folio in sacculum concheformem reniformemve, facie supera depressum perforatumque, omnino convoluto.—In vars., magis frequentur quam in typo, flores dichotomiales inveniuntur, ramulis novellis interdum apice iterum floriferis furcatisque. 11. Cerato-LEJEUNEA RUFO-PELLUCIDA, Spruce. Hab. Ad San Carlos del Rio Negro, in arborum foliis, rarius in cortice et in truncis putridis. cso 6, “OS x5; o ay; f 45x65, 25%°3; br 555, br’ 45x 3 ; per “75x °3™™ (lat. nfra cornua mensa). Rufa sat robusta prostrata. Caules 1-2-pollicares pinnati et inzequaliter subbipinnati, ramis omnibus planis. Folia pulchre pellucida subimbricata subdivergentia, semicordato-ovata, falcato-dimidiata, margine postico recto vel seepe subconcavo, apice obliquo abrupte acuta, rarius rotundata, et plus minus argute— interdum subduplo—serrulata, basi sinuato-complicata ; lobulus 4-6-plo brevior semper inflatus transversus semiovatus; cellule 208 CERATO-LEJEUNEA. parvule pellucid, prope basin sensim multo majores sed non in ocellum congeste. Utriculi magni ad ramorum basin sepe adve- niunt. ; Foliola subimbricata dimidium folium pro more superantia—in aliis ramulis autem foliis 3-plo breviora, cordato-reniformia ad 4-4 bifida, rima 8 cellulas alta, segmentis apiculato-acutis, integerrima, supe- riora raro denticulo uno alterove armata. Flores monoici: ¢ in ramo_ brevi terminales, innovatione simplice suffulti. Bracteze foliis $ breviores bipartite argute serrulate, lobo ovali acuminulato, lobulo multo minore lanceolato; bracteola ovalis serrulata ad 4 fissa. Perianthia emersa obpyramidato-cylindrica longicornia, cornibus tenuius- culis cylindrico-subulatis strictis recurvulisve late patentibus. Andreecia crebra longispica ramulum totum, vel seepius rami longioris apicem, tenentia ; bracteze ad 12-jugee mediocres laxe imbricatze. A L. variabili var. subserrata habitu et pelluciditate primo visu diversa, ab eadem tamen egre definienda foliis apice argute subduplo serratis, lobulo semper inflato ; foliolorum segmentis apiculatis ; perian- thiis subcylindricis; andreeciis longispicis.—L. brasiliensis G. (ad flum. Amazonum a cl. Martio lecta, a me pretervisa) differre videtur foliis subacuminatis apice spinulosis; foliolis minus profunde cordatis distincte denticulatis serrulatisve, et perianthiis latioribus. Forsan utraque pro forma ejusdem speciei habenda. 12, CeraTo-LEJEUNEA FULIGINOSA, Spruce. Hab, Ad fl. Negro et Uaupés cataractas, in arborum truncis et rupibus inundatis: semper sterilis et, ut videtur, mere mascula. F 75x ‘55; lob 15; czy; f'* °35 x 35™™, Prostrata nigro-fusca, fere fuliginosa, in plagas latas tenues extensa. Caules 2-pollicares paralleli inzequaliter subpinnati. Folia horizontalia patentia, inferiora dissita ligulato-oblonga, superiora subimbricata oblique ovato-oblonga subconcava, rotundata, oblique truncata, v. raro subacuta angulatave, basi subquadrata, margine repanda, sinuato-complicata; lobulus folio 5-plo brevior, ovatus inflatus; cellule subparvee, basin et marginem posticum versus majores pallidioresque, ocello tamen nullo. Folia cujusque rami duo infima seepe in utriculum reniformem, juxta caulem orificium lineare ovaleve mostrantem, omnino convoluta. Foliola subdissita dimidium folium subsequantia orbiculato-ovata, in- feriora minora ad 4, superiora submajora contigua vix ultra 4, bifida, sinu segmentisque acutis. Var. megalostipa, foliolis maximis, foliis vix minoribus, late ovato-orbi- culatis, basi indistincte cordatis, apice breviuscule bifidis—Ad saxa cataractarum humectatan—Cum eadem crescit altera forma foliolis inferioribus parvis, superioribus majoribus solum 4 folium sub- ceequantibus. A L. variabili differt colore nigrescente ; floribus dioicis ; foliis pro ratione longioribus, oblongis raro subovatis; foliolis ovato-orbiculatis, nunquam reniformibus, vix unquam cordatis. L. hylophila, pro florescentia dioica nostree similis, folia habet rufe- scentia, ovata; foliola profunde cordata, apice breviter bifida. CERATO-LEJEUNEA. 209 13, CERATO-LEJEUNEA HYLOPHILA, Spruce. Hab. In sylva Amazonica haud infrequens, ad truncos vetustos et folia viva; Pardé ; lacum Quiriquiry fluvii Trombetas ; ad tluvios Negro et Uaupes, &e. (Trombetas). F' ‘5x +4; lob 1-08; c Ay; f'* 385 x °55; br 65; br'* “6x "4; per ‘9x 3-4; cornua °3™™, (Uaupes). F 8x °65, "7x °65; lob 1; ¢ gy; fie 5x6, °25x'2; br “75; Geib -6; per 1-1 x -6™™, Dense caspitoso-procumbens, ex olivaceo rufescens badiave. Caules 1-1}-pollicares vage ramosi, interdum subdichotomi. Folia subimbricata subdivergentia decurvo-concava late semiovata (fere dimidiata, haud tamen falcata) apice obliquo rotundata—ramea superiora subacuta—integerrima, exocellata, valde sinuato-complicata; lobulus parvus, folio 5-8-plo brevior, saccatus, nunquam obsoletus; cellulz subparvee subpellucide. Utriculi nulli vel perrari. Foliola imbricata contiguave, foliis fere aquimagna—rarius 2-3-plo minora—latiora quam longa, cordato-reniformia, vel prelate cordato- ovata, basi profunde excisa, apice late rotundato ad }—+ bifida, seg- mentis contiguis acutis v. subobtusis, rima vix perceptibili: inferiora semper minora, superiora sensim increscentia, Flores dioici: 2 in ramo terminales, interdum dichotomiales, innovationi- bus simplicibus, vel altera iterum prolifero-dichotoma. Bracteze foliis sublongiores suberectze complicato-bipartitee apiculato-acutee—raro altera obtusa—subserrulatee, lobis lanceolatis, eequilongis, vel in- feriore breviore semperque angustiore ; bracteola ovalis vel fere rotunda, ad 1—} bifida, serrulata, segmentis apiculato-acutis. Perianthia foliis tere duplo longiora, obconico-cylindracea, 4~5-carinata, carinis papulosis in cornua sat elongata, pungentia vel subobtusa, erecta vel erecto-patentia protractis. Amenta ¢ cauligena, folium contiguum subsuperantia; bracteze sub 4- (raro ad 8-) juge majuscule galeiformes, apice subrostrate bi- fideeque. Var. subdenticulata, foliis apice subacutis integerrimis v. rarius 2--3-den- ticulatis; foliolis subminoribus semper autem cordatis, perianthii cornibus interdum magis patentibus.—S. Carlos et S. Gabriel, in arborum foliis; Obidos et Panuré, in truncis. Probabiliter inter “ LZ. variabilis” formas a cl. auct. Synopseos Hep. inclusa, certe tamen diversa floresc. dioica, &e. L. cornuta Lindenb! e specim. ab ipso, monoica est, ideoque aliena. 14, CeRaTO-LEJEUNEA MICRORHEGMA, Spruce. (Tas. VIII.) Hab. In sylva Canelos, e ramulis pendula, alt. 1000m. F 8x °65, ‘7x °6; lob 08-1; ¢ 3.4; f'* -95x°6, °75x°5; br. lob “75x 45; br’* -6x°4; per 1:0 x4 (lat. infra cornua)™™. Elata, rufo-fusca nigricansve, flaccida. Caules 2-3-pollicares, fere nigri, paulo ramosi, ramis seepe brevibus. Folia subimbricata patentissima subfaleata, late oblique oblonga v. ovato- oblonga, basi truncato-semicordata, apice valide decurvo rotundato serrulata, decurrenti-lobulata; lobulus minutus plus minus tur- TRANS. BOT. SOC. EDIN. VOL, XV. 2D 210 CERATO-LEJEUNEA. gidus ; cellule parvule pellucidee, inferiores sensim submajores, ocello nullo. Utriculi adsunt. Foliola foliis zquimagna, oblata tamen, insigniter cordato-reniformia, sinu baseos profundo, apice emarginato-bidentula, sinu solum 4 cel- lulas alto, angusto, dentibus cellula unica apiculatis, e margine toto incurvo concava. Flores dioici: 2 in ramo brevissimo terminales, innovatione simplice suffulti. Bracteze foliis subzequilongee suberectze profunde compli- cato-bilobze, spinulosz, lobo obovato-lanceolato acuto, lobulo 2-3-plo breviore oblongo obtuso; bracteola utrinque subconnata ovalis brevis- sime bifidula, basi breviter constricta quasi-stipitata. Periauthia emersa oblonga 4-5-gona longicornia; cornibus cztero peri- anthio vix brevioribus suberectis angustiuseulis. E foliolis con¢avis—nec convexis—apice fere integris, a plurimis Cerato- Lejeunets aberrat, L. hylophile et L. variabila var. saprowylophilee pro- xima, 15. CeRATO-LEJEUNEA MARITIMA, Spruce. Hab. Caripi, prope fluvii Pardé ostia, in rupibus maritimis, rarius in truncis vetustis vicinis, plagas maximas densas efficiens. Planta mascula solum visa. F -65x°45; lob *1; cay; fl* 35x °5, 3x °55, -25 x 25, 15 x ‘155m, Rufo-badia, L. hylophile subsimilis, diversa ut videretur caracteribus sequentibus. #'olia semiovato-oblonga, obliqua sed vix dimidiata, obtusa, raro subacuta, apice serrulata v. saltem angulata; lobulo parvo ovato, aliorum: ramorum subgloboso turgidiore, rarissime obsoleto. Utriculi proprii nulli. Foliola foliis sub 2-plo minora, superiora szepe fere duplo latiora quam longa, breviter bifida, seg- mentis acuminulatis, bast rotundata nec profunde cordata (qualia in L. hylophila). In aliis ramis—vel etiam ‘in ejusdem rami apice elongato—aliquando adveniunt foliola longe minora, orbiculata, rima paulo profundiore. Andrecia crebra longispica, sat robusta, bracteis circiter 10-jugis. Cerato-L. platyceras certe distincta erit foliis acuminatis magis serratis, foliolis profunde bifidis nunquam reniformibus. Densely-stratified to the depth of half an inch, or even an inch, and absorbing moisture like a sponge. 16. Cerato-LEJEUNEA PLATYCERAS, Spruce. Hab. In valle fl. Pastasa infra Banos, alt. 1500™., ad ramulos cum Frul- laniis, = ¢d ; in sylva ee in cortice, pl. 2 sterilis. FQ x ‘65, ‘7 x 55; lob 15-1 As f* 3x ‘3, 25 x ‘3, ‘2x 25; br “9x 55; brta 65 x: ars "per 10x 45 eu 75™™ cornibus inelusis). Robusta rufa prostrata. Caules 14-2-pollicares pinnati, flexuosi intricati, ramis brevibus inwqualibus. Polia subimbricata patentia late dimidiato-ovata, subsemicordata, apice decurvo subacuminata vel solum acuta, margine postico recto supra medium, antico fere toto apic eque, argute dent ito-serrata-spinulosave, subrecte complicata; lobulus minutus folio 6-7-plo brevior inflatus, aliorum Yamorum major saccatus et ad folia infima interdum in i CERATO-LEJEUNEA. PAS : utriculum majusculum dilatatus; cellule parvule pellncide, 2v. plures exteris duplo majores juxta folii basin in lineam occellumve congeste. Foliola dissita foliis 2-3-plo, in pl. 2 spe 4-plo minora, suboblato- orbiculata, adusque v. paulo ultra 4 bifida, segmentis acuminulato- acutis, sinu lato acuto, margine supra medium pauciserrulato raro integerrimo. Flores dioici: 9 in ramo brevi terminales, innovatione simplice suffulti. Bractez foliis zquilong bipartite, lobis lanceolatis acutis, crebre spinuloso-serratis, inferiore duplo angustiore et subbreviore; brac- teola minor ovali-lanceolata fere ad 4 bifida, serrulata, segmentis acuminulatis, basi utrinque cum bracteis connata. Perianthia subemersa urniformia subcompressa alte 4-carinata, carinis papulosis apice in cornua lata brevia recurvulo-patula—rarissime clausa oblonga compressa—plerumque plus minus evoluta, obconica, ore hiante inzequaliter lobulata crenatave, dilatatis. Andreecia in ramis terminalia, vel ramulum totum tenentia, robusta; bractez 5-jugze, foliis 2-plo breviores, imbricatze turgide. L. Filaria Tayl., ad Esmeralda a cl. JAMESON lecta, quoad folia valide dentato-serrata et foliorum segmenta acuminata nostree similis, differt foliis “rotundis obtusis.” L. Brasiliensis Gottsche, Syn. Hep. 398, facie et foliolis subserratis nostre similis, certe distincta est foliis solum apicem versus serrato- spinulosis ; foliolis magnis ad } solum bifidis, et perianthiis longicornibus. L. platyceras, quoad caules pinnatos et folia argute serrata L. plumule haud dissimilis, differt floribus dioicis ; lobulis plerisque inflatis (parvis tamen); foliolis multo majoribus subserratis; perianthii cornibus patulis plerumque evolutis, etc. Obs, Utricles—not very large—are present at the base of a few of the branches, but their place seems to be mostly supplied by several (rarely all) of the leaf-lobules on certain branches becoming more turgid, although not longer, than in the normal state. Any tenants these sacs may have contained have disappeared from my specimens. 17. CERATO-LEJEUNEA SPINOSA, Gottsche. G. L. et N. Syn. Hep. 402. Hab. in M. Chimborazo, alt. 1500™,in arborum truncis et e ramulis pendula, sociis Taxi-Lejeunets, Plagiochila bursata, etc. In insulis Antillis primum inyenta fuit. F 1:35 x ‘8; lob 15; ¢ de; f* °6x°45; br. lob 10x °5; br’? -85 x 4mm, Rufa, fragilis, aliis muscis arcte adherens. Caules 3-4-pollicares, sub- flexuosi, parce ramosi v. fere simplices. Folia subimbricata patentia, obliqua v. subdimidiata, semicordato-ovata acuminata acuta, margine antico 1-2-dentata, postico spinuloso- dentata-serratave, dentibus inequalibus, apicali pralongo subulato, basi minute sinuato-lobulata, lobulo folio 9-plo breviore saccato compresso-obconico margine transverso inflexo obscure denticulato; cellule subzequilaterze subparvule pellucidz, versus folii basin posticam duplo majores, versus Marginem anticum multo minores.— Lobulus foliorum rameorum e lobi majoris ratione caulinis major, duo infimi seepe magni involuto-inflati dimidium folium tenentes. 217, CERATO-LEJEUNEA. Foliola subdistantia foliis duplo breviora ovata ultra } bifida, segmentis tenui-acuminatis, margine recurvulo integerrima. Flores dioici: in ramulis breviusculis terminales, innovatione simplice suffulti. Bractez foliis breviores bipartite, lobo ovato-lanceolato acuminato ciliato-spinoso, lobulo subbreviore multo angustiore lan- ceolato acuminato, (vel altero truncato-bispinoso) subintegerrimo ; bracteola ovata profunde bifida, segmentis longissime acuminatis, integerrima. Perianthia haud vidi, sec. cl. Gottsche le. sunt clavato-urneformia 4- cornia, cornibus magnis latis compressis. Suncenus XXV.—TAXI-LEJEUNEA, 8. Omphalanthus N. et Ldng. Syn. Hep. ex p.; Lejeunea Mont., Syn. Hep. ex p. Plante grandiusculze, strato tenui late repentes, albido-virides—nunquam rufulz fusceeve—laxe texte pellucide. Caules tenues flaccidi laxe pinnati subsimplicesve, primum repeutes dein seepe penduli apiceque indefinite evoluti ; rami 2 parvi-paucifolii iteratim innovandi, flori- bus secundis confertis onusti. Folia laxe imbricata contiguave, majuscula vel magna, in Codonocoleis circiter 1-2 (-9-1°6)™™, in Pyramidocoleis ‘8 (-6-1'1)™™ longa, tenera subplana, plus minus ovato-triangularia, pro more acuta subacu- minatave, in paucis rotundata, apice serrata integerrimave, lobulo basali minuto vel seepissime nullo; cellule mediocres (44—37™™) vel etiam majusculee (;5-4™™), leptodermes, endochromio parco pellu- cidie, plane vel marginales convex. Foliola mediocria, magna, vel etiam maxima—vix unquam parvula—in paucis folio equimagna vel imo submajora—integerrima vel solum celluloso-crenulata, breviter, raro ultra medium, bifida, rarissime integra. Flores omnium fere monoici*: Q ad ramulos innovatos terminales, quasi-seriati; bracteze pro more parva lanceolate seepissime denticu- latee, lobulo parvo nullove; bracteola ovalis bifida bidentatave raro integra. Perianthia pro more parva pellucida obconica vel obpyramidata, angusta, vix compressula, vel omnino ecarinata vel apice solo—vel denique fere a basi—5-carinata, plerumque rostellata, leevia vel ad carinarum apicem cristulata. Amenta ¢# lateralia, folio caulino breviora, seepe minuta, tenuia, oligo- phylla, incurva. MRarissime adveniunt amenta longiora in ramis terminalia. In sectiones duas dividenda est Taxi-Lejeunea, sc. 1. Codonocolea, perianthiis parvis tenerrimis obconicis et, vel omnino ecarinatis inermibusque, vel ipso apice carinas 5 (seepe cristatas) osten- dentibus,—Folia magna seepius apice serrata; cellule interdum majuscule, ad 4" long. Foliola seepe maxima, ipsis foliis submajora, aliarum * Taxi-Lejeunee omnes, quarum fructus adhue cognovimus, monoice sunt. In perpaucis speciebus, cum Pyramidocoleis ex habitu simili hie collocatis, flores alterius sextis et perianthia ignota remanent. TAxI-LEJEUNEA. 213 specierum autem sat minora; fere semper oblata, reniformia, basi pro- funde cordata, apice levissime emarginata, raro profundius fissa, rarissime integra. 2. Pyramidocolea, perianthiis majoribus, foliis caulinis subeequilongis, fere a basi, vel saltem supra medium 5-angulatis-carinatisve, angulis vel Jevissimis vel solum papulosis—nunquam cristatis.—Folia mediocria majusculave, apice integerrima rarius subserrata. Foliola foliis 2-3-plo minora, basi vel rotundata vel subcordata, apice ad 4-3 (raro brevius) bifida. Hab, Codonocolee (Omphalanthi ‘Syn. Hep.’ ex p., valde diversee autem ab O. filiformi, quem pro subgeneris Omphalo-Lejewnew typo habui) ad arborum ramulos et folia viva, necnon ad filices, raro in cortice, montes tropicales sylvaticos ad alt. 2000™™ usque habitant, in planitie rarissime. Pyramidocolee (Lejeunee Acutifolie ‘Syn. Hep.’ ex p.) in truncis vetustis, seepe aliis hepaticis et muscis consociate, raro in ramulis, foliis, vel filici- bus, interdum in saxis vel in ipsa terra, vigent; planitiem sylvaticam et montes inferiores amant, paucee alt. 2000™ superantes, Distr. Codonocoleew sub 16 adhue descripte omnes neotropice videntur nisi L. wmbilicata Nees, e Java, et L. gracilipes Tayl., ex ins. Oceanicis. In Andibus Quitensibus 4 species legi (7. L. Chimborazensis, nova) quarum 7. L. sulphurea L. et L. etiam in planitie ad fluvios Bombonasa et Negro crescit: in ins. Antillis vulgata videtur. Pyramidocolearum species in libris definite sub 10, omnes (L. lumbricoides N., Javanica, excepta) neotropice, pleraeeque Mexican et Columbian, inter quas nominare liceat (haud sine dubio, ob speciminum defectum) L. acutangula N., L. Caraccensis Lindng., L. Beyrichiw Lndng., L. Gottscheana Lndne., L. assimilis L. et G., L. tenera Sw! Ipse in terris Amazonicis et Andinis 9 species legi, omnes (ut videtur) novas, alias autem probabiliter cum Lejeuneis jam (incomplete ?) descriptis confusas, § 1. CoDONOCOLEA. A. Per. apice ipso pentagona, angulis spinosis cristulatisve. 1. T.-L. Chimborazensis. F. semicordato-ovata apiculata apicem versus spinulosa, laxe reticulata, lobulo 0. Foliola foliis fere duplo breviora cordato-ovato-rotunda, inferiora integra, superiora apice rima sub 5 cell. alta bidentula. Perianthia cylindrico-campanulata superne obtuse 5-gona, angulis apice bispinosis. 2. T.-L. pterogonia. F. ovato-triangularia subapiculata apice subserru- lata, minutissime lobulata. Foliola foliis eequimagna orbiculata pro- funde cordata, auriculis forficatis, apice ad 4-} bifida. Per. longe infundibulata teretia, apice pentagona, angulis laciniato-alatis, B. Per. ecarinata ecristataque, apice corrugato-inflexa. a. Foliola apice bidentula, 3. T.-L. sulphurea, F. semicordato-triangularia apiculata, supra medium celluloso-crenulata, subelobulata. Foliola foliis } breviora cordato- orbiculata undulata, dentibus apicis 5c. altis. Br. serrulatae; brac- teola obovata ad } bifida. Per. obconico-clavata levia.— Var. ? pusilla, F. acuminulata subcrenulata, apice subserrulata. Foliola foliis fere duplo breviora cordato-subreniformia, latiora quam longa. 4. T.-L. renistipula. F. magna subdivergentia ovato-triangularia sub- acuminata crenulata, apice dentato-serrata, margine postico crispata, 214 TAXI-LEJEUNEA. minute lobulata, laxe texta. Foliola foliis imo majora cordato-reni- formia, dentibus apicis 4-5c. altis. Br. perianthiaque fere 7. L. sulphuree. b. Foliola ad 3 bifida. [ T.-L. leioscypha, G. F. late ovata abrupte apiculata integerrima parvi- lobulata. Foliola vix minora profunde cordato-orbiculata, laciniis apicis erecto-forficatis. Br. minutee bere. Per. minuta obconica reticulata, apice depresso plicatula.—Mezico. ] [T.-L.? wmbilicata, N. F. late semicordato-ovato-oblonga fornicata, apice decurvo rotundata, lobulo 4-plo breviore, cellulis parvulis. Foliola minora cordato-reniformia, laciniis patulis, Br. foliis parum minores vix complicate, cum bracteola altiuscule connate. Per. longe pyri- formi-obconica subcompresso-teretia, apice depresso vix corrugato minute mammillata.—Anne melius inter Hygro-Lejeuneas collocanda ? —Java. } @ 2. PYRAMIDOCOLEA. A. Monoice. a. Foliola brevissime bifida. 5. Taxi-L. dictyocalyx. F. acuminulata integerrima subelobulata. Foliola 2-3-plo minora, latiora quam longa, basi profunde cordata, apice ad 4} bifida. Br. subserratee. Per. subemersa clavato-oblonga alte 5-carinata pulchre reticulata. b. Foliola ad 4-3 usque (raro ultra) bifida. * Folia obtusata rotundatave bractewque integerrima. 6. Taxi-L. crebriflora. F. subcontigua oblique subfaleato-oblonga sub- elobulata. J 3-4-plo breviora ad vel paulo ultra 3 bifida. Br. lanceolate obtusata elobulate; bracteola late lgulata breviter bifida. Per. obpyramidato-clavata supra medium 5-carinata, carinis subpapulosis apice lato truncato-rotundatis.—Var. arenicola, aliis foliis subobovatis; bracteola ovali ad 4 bifida.—Var. minutiflora, br. tam 9 quam ¢ minutis; bracteola 2 cuneato-oblonga ad 4 bifida. 7. Taxi-L. tenax, Caules sat robusti tenaces. F. magna tortilia semi- cordato-ovata (raro subacuta); lobulus 5-6-plo brevior inflatus. Foliola plus 3-plo breviora suborbiculata ad 4 bifida, segmentis acutis obtusisve. Br. foliis duplo minores. [Taxi-L. tenera Sw.! Tota planta tenera fragilis. F. magna plana late oblique ovata, lobulo obsoleto. Foliola plus 2-plo breviora, segmentis acutis. Br. foliis multoties minores.—Jamaica.] ** Folia, precipueque bractee, acuta acuminatave, apice perseepe subserrulata. 8. Taxi-L. macrorhyncha, Caules decompositi. F. abrupte acuta raro rotundata, integerrima v. solum celluloso-subcrenulata, elobulata. Foliola 4-plo breviora paulo ultra $ bifida. Br. integerrimee, lobulo parvo vel 0; bracteola lanceolata ad ¢ bifida. Per. emersa pyri- formia longirostria. 9. Tuxi-L. obtusangula. Parce ramosa, F. prelate semicordato-ovata acuta, apice raro subdenticulata, lobulo 5-plo breviore inflato. Foliola 4 folio majora cordato-orbiculata ultra 4 bifida. Br. sub- 10. ike 13. 14. TAXI-LEJEUNEA. 215 denticulatae, lobulatee; bracteola obovata ad 4 bifida. Per. clavato- oblonga rotundata apicem versus 5-gona demum fere leevia. Tan-L. florida. Pinnatim ramosa floribunda. F. subimbricata patentia late ovata subabrupte acuminulata integerrima, lobulo obsoleto. Foliola 2-plo minora ovato-orbiculata fere ad 4 bifida, Br. integerrime elobulate ; bracteola obovata, emarginato-bifida. Per. obovato- obconica, superne acute 5-carinata. Taxi-L. asthenica. Elongata pinnatim ramosa. F. tenuia late semi- cordato-ovato-triangularia acuminulata, apice v. acuta v. argute 3-dentata, lobulo obsoleto. Foliola sub 3- -plo breviora late orbicu- lata ultra 4 bifida. Br. foliis breviores serrulate spinuloseve lobu- latee (vel non); bracteola oblonga ad } bifida. Per. clavato-oblonga alte 5-carinata. Taxi-L. Bombonasensis. Elongata bipinnata. F. tenera vix contigua late semicordato-ovata, alia subacuminata, alia obtusa, integerrima, lobulo obsoleto. Foliola foliis plus duplo minora orbiculata ultra 4 bifida. Br. foliis breviores angulatze minute lobulate, antice sub- comnate } practeola obovato-lanceolata ad 4 bifida. Per. clavato- pyriformia retusula supra medium 5- carinata. Taxi-L. implera. Elongata vage decomposita. F. subimbricata late semicordato-ovata subacuta, integerrima vel apice angulato-denticu- lata, lobulo ad plicam minutam (raro subinflatam) redacto, Foliola 2-3-plo minora paulo latiora quam longa ad 4 bifida. Br. foliis sublongiores anguste lobulate subdenticulate; bracteola oblonga ad 4 1 bifida seepe utrinque 1- -dentata. Per. clavato- oblonga supra medium 5-carinata, carinis apice rotundo-prominulis. —Var.! calliandra. F. seepe latiora magis imbricata. Foliola paulo ultra 4 fissa. Br. grosse serrate. Per. fere a basi carinata, carinis superne compressis alezeformibus subpapulosis. Andr. seepe preelonga, br. 20-jugis. —Var.! retiflora. F. magna rotundata v. superiora obtusa (nunquam acuta), lobulo minutissimo. Foliola fere 3-plo minora fere ad 3 bifida. Br. foliis breviores subdenticulate. Per. breviuscula obconica reticulato-pellucida altiuscule 5-carinata, carinis apice prominulis. B. Dioice (speciebus monoicis haud certe affines). Taxi-L.?2 Tapajosensis. Albicans elongata subpinnata. F. apice rotundata subintegerrima, marginata, lobulo plo minore plano. Foliola 2-plo breviora elliptico- orbiculata fere ad ? bifida. Br. foliis minores integerrime, lobulo majusculo ; bracteola oblonga ad 4 bifida. Taxi-L.? Paraensis. Subpinnata. F. flaccida semicordato-ovata acuta erosula, lobulo 8-plo breviore subinilato, | c. pariete incrassato. Foliola 24-plo minora oblato-orbiculata ad 4 bifida. Br. andreecii paucijugze. 1. Tax1-LEJEUNEA CHIMBORAZENSIS, Spruce. Hab. In montis Chimborazo sylvaticis, ad filices, alt. 1500™, Bao lO; 7 ue x 85, 85 x "75; c. medie +4, basales J, marginem anti- cum versus 3; br -9x°3; per “8x °3™, Pallide viridis, siccando flavicans, prostrata et ultra matricem in tegeti- culam horizontalem pendulamve protensa. Caules 2-3- -pollicares 216 . TAXI- LEJEUNEA. arcte pinnati validiusculi, apice indefinite prolongati, alii ramulis floriferis (tam ¢ quam @ ) crebris bipinnati. Folia paululum imbricata plana, basi longitudinali decurrente inserta, semicordato-ovata, subtriangularia, apiculato-acuta—superiora rame- aque plus minus acuminata—apicem versus subspinuloso-denticu- lata, dentibus 3-9 (raro 0), tenuia pellucida, basi elobulata; cellule leptodermes fere vacue subelongate, mediz majuscule, mediam basin versus magne, submarginales sensim minores. Foliola contigua vel. parum imbricata, dimidium folium paulo super- antia, cordato-rotunda-ovatave, inferiora apice rotundata itegra, superiora caulina acuta seepeque minutissime bidentula, rima solum 5 celluias alta; ramulorum fertilium autem duplo minora apiceque distincte breviter bifida. Flores monoici: 2 crebi, 3-6 ad quemque ramum seriatim secundi, quasi laterales, revera terminales, cymosi, ramo iteratim innovando (monotropo) insidentes. Bracteze foliis plus dimidio breviores lan- ceolatee ligulateeve acuminate subintegerrime, seepe* basi antica connate; bracteola tamen libera late ligulata ad 4 i bifida, segmentis acuminulatis, Perianthia parva subimmersa cylindrico-campanulata, triplo fere longiora quam lata, inferne teretia, superne obtuse pentagona, angulis apice bispinosis (spinis rectis vel varie curvis), perianthii ipsius apice truncato, depresso vel parum elevato, demum trifido vel irregulariter rupto. Amenta ¢ minutissima scorpioidea, folio caulino collaterali multoties breviora; bracteze sub 6-jugze orbiculatee concave, apice biloba, an- theridiis binatis. Lejeunea debilis Mont.! (Omphalanthus d. L. et Lg.), e specimine authen- tico in herb. Hook., certe distincta, caule flaccido; foliis lobulo distincto parvo inflato auctis, apice solum angulatis vel paucidentatis ; foliolis foliis vix minoribus (aquilatis sed perpaulo brevoribus), apice ad } usque fissis. 2. TAxI-LEJEUNEA PTEROGONIA L. et L. Tungermania pterogonia L. et L. in Lehm. nov. ete. pugill. VI. 1834. p. 44. Syn. Hep. p. 306. Hab. Andes Peruvianos in M. Campana, Quitenses ad fl. Pastasa (alt. 1400"); utrobique e ramis pendula. Antea in Mexico et Peruvia inventa est; vidi etiam specimina ad Caldas Brasiliz a cl. G. A. Lind- berg lecta. F 11x 1-0, ¢ gy-vky ft V1 x11, 10x 1-0; br °7 x °3; per ‘9x 35mm, Elata alieeyiniiis tenui strato repens dein dependens. Caules 6-polli- cares, interrupte pinnati vel subsimplices, flexuosi, ramis pro more brevibus. Folia subimbricata preelate ovata vel ovato-triangularia acuta apiculatave, apicem versus pauciserrnlata (dentibus sub 4), basi antica late semiccrdata (auricula rotundo-circinata), postica minutissime lobu- lata; cellulae mediz mediocres, basin posticam versus majores, sub- marginales multo minores, omnes leptodermes subplane. Foliola foliis a quimagna orbieul: ata, basi profundissime cordata, auriculis rotundis forficato-imbricatis, apice rima perangusta subobtusa ad 1_1 alt. fissa, segmentis acutis. TAXI-LEJEUNEA. Pail Flores monoici: 9 in ramulis microphyllis, simplicibus vel pinnulatis, seriatim secundi quasi-laterales. Bractez foliis caulinis sat minores, forma varie, oblong vel ovato-lanceolatee superne plus minus serrate; bracteola oblonga ad + bifida pauciserrulata. Perianthia folio caulino breviora tubiformia vel anguste infundibuli- formia, inferne teretia, apice pentagona, angulis alatis, alis apice in cornua laciniato-ciliatove-cristata porrectis. Sectio perianthii juve- nilis transversa media subovalis, distincte obtuse pentagona. Obs. The leaves and underleaves on the fertile branchlets are only one- third the size of those on the stem, but of similar form, and there is only a single row of them below the flower on each innovation. 3. TAXxI-LEJEUNEA SULPHUREA, L. et L. Jungermania sulphurea Lehm, et L. in Lehm. nov. etc. Pug. V. (1833) p. 14. Lejewnea s. Syn. Hep. 307. Hab. Ad pedem Andium Quitensium secus fl. Bombonasa, in ramulis supra muscos repens, etiam ad folia viva. F10x9—8, ¢c 3; f* ‘7x ‘7; br “8x3; per 1:0 x ‘55, -9 x “65mm, Pallide viridis, siccando interdum flavicans, prostrata pendulaque, tenuis flaccida pellucida. Caules 3-pollicares intricati subpinnati, ramis brevibus szepe fcemineis. Folia subimbricata, basi lata longitudinali inserta, semicordato-ovato- triangularia, rotundata vel ex obtuso apiculata, medio supero cellu- loso-crenulata-serrulatave, apice distincte serrulata, dentibus ine- qualibus sub 7, basi postica minutissime inflexa, vel non; cellule majuscule equilaterze vel suboblong leptodermes, basin versus sen- sim laxiores, marginales superiores prominule. Foliola foliis + breviora subimbricata, raro subdissita, cordato-orbiculata undulata, rim& brevissima 5 cellulas solum alta apice bidentula, dentibus contiguis forficatisve acutis. Flores monoici: Rami ¢ breves parvifolii innovando-pauciflori. Brac- tex foliis 1 breviores lanceolatze acute serrulate elobulat, vel altera parvilolobulata; bracteola obovata repanda serrulatave apice biden- tata, raro integra. Perianthia foliis caulinis vix breviora, (duplo fere longiora quam lata) obeonico-campanulata—rarius clavata vel subcylindrica—eplicata, apice dilatato corrugato-inflexa demum lacero-lobulata. Capsula parva globosa. ; Amenta ¢ ad caulem, raro etiam ad ramos, foliis obtecta iisdemque multo breviora, decurvo-circinata; bracteze minute 3-5-juge. Obs. In plagule ambitu rami arcte bipinnati parvifolii, florescentiis erebris, masculis precipue, onusti interdum videntur. In talibus ramis folia multo minora angustiora subacuminata et validius dentata sunt, ita ut, si non e caule typice folioso plane orta fuissent, ad speciem alienam pertinere viderentur. Var. subintegristipula, minor, ditissime florifera, floribus 2 sepe in caulis ipsius apice innovando terminales, interdum fl. ¢ mixtis vel alter- nantibus; foliis subabrupte acuminulatis; foliolis paulo latioribus quam longis, aliis perfecte integris, aliis rima 4 cell. alta bidentulis—Ad fl. Negro cataractas, in cortice, cum aliis Lejeuneis. TRANS, BOT. SOC. EDIN. VOL. XY. 25 218 TAXI-LEJEUNEA. 4, Taxt-LEJEUNFA RENISTIPULA, Lindenb. G. L. et N. Syn. Hep., 308. : Hab. In sylva Canelos, ad ramulos. F 1:6 x 1:25; lob .08; c. med. }-sb, marg. Je; f* 121-4, 1°25 1°6; br 12% 4, °8x"°35; br" 10x 6; “8x "5: per 11 4b Pallide viridis pellucida tenuis, majuscula. Caules 3-6-pollicares, strati- ficati, vage vel pinnatim divisi, ramis stepe innovando-floribundis, Folia caulina magna (ramorum, precipue fertilium, duplo minora) ad 4 imbricata, longitudinaliter inserta, patulo-divergentia, planissima, suboblique ovato-triangularia acuta vel subacuminata, apice dentato- serrata, dentibus 3-5, toto margine celluloso-crenulata, basi antica semicordata, margine postico a basi ad medium usque crispata et subincurva ‘(rugis sub 3), basi ipsa minutissime complicata, plica folio 20-plo breviori subquadrata plana; cellule majuscule pellucide subequilaterze, marginales mediis triplo minores pulchre promi- nule. Foliola imbricata magna, foliis etiam majora, paulo oblata, cordato-orbi- culata reniformiave, subplana, auriculis baseos tamen medio uni- plicatis, apice rotundato subretusove minutissime bidentula, rima solum 4-5 cellulas alta, dentibus conniventibus, margine toto pulchre celluloso-crenulata. Flores monoici: in ramis iteratim proliferis seriati, assurgenti-secundi conferti (ad 5-6 cujusque rami); bractez erectee foliis caulinis sub- duplo minores, variabiles tamen, alteraque duorum semper breviore, anguste lanceolatee subacuminatee supra medium subserratee, a basi ad 4 alt. anguste complicatee, plica lineari acuta; bracteola obovata ad 4 (vel vix) bifida, segmentis acutis, apice dentato-serrata integerri- mave. Perianthia subemersa albida tenera clavata, teretia, apice rotundato sub- corrugata, 24-plo longiora quam lata, demum clavato-campanulata, apice rupta plurifida, segmentis inflexis vel seepe deciduis. Andrecia ad caulem, folio longe breviora, ovoidea, bracteis arcte imbri- catis mediocribus cymbiformibus. Melius pro Taxi-L. sulphuree varietate crispifolia grandistipula, quam pro specie propria habenda. 5. Taxi-LEJEUNEA DICTYOCALYX, Spruce. Hab. Tunguragua, in arborum vetustarum cortice, alt. 2300, F 11x93 10°75, lob 1, ¢ ay; jf °55x°65, 4x5; br Sh x4 Bre °8 x ‘6, per 1:0 x *46™™. Pallide viridis flaccida, strato tenui effusa. Canles pollicares parum divisi subpinnati. Folia paulo (ad }) imbricata, angulo 70° adscendentia, e basi longitudi- nali, late semicordato-ovata subabrupte acuminulata acuta, acumine breviusculo vel foliorum superiorum longiore decurvulo, integerrima, basi anticé caulem late transeuntia, posticé angustissime inflexo- complicata (vel vix); cellulee mediocres pellucide fere vacue, Foliola dissita, foliis 2-plo (inferiora sub 3-plo) minora, profunde cordata, oblato-ovata vel suborbiculata, apice rima brevi (ad }-4 alt.) fissa, segmentis apiculato-acutis conniventibus, alis recurvis, TAXI-LEJEUNEA. 219 Flores monoici; ? terminales, cum innovatione simplice, raro in ramo prolifero seriati. Bracteze erectee foliis subbreviores lanceolatze acuminulatz subserrate vel fere integerrime, ad medium bifida, lobulo perangusto apice lanceolato; bracteola late oblonga rotundata brevissime (raro ad 4 usque) bifida, apicibus acutis. Perianthia foliis caulinis subzequilonga clavato-oblonga rotundato-trun- cata brevi-rostellata, fere a basi alte 5-carinata—paulo compressa, pellucida reticulata leevissima. Amenta ¢ folio caulino duplo breyiora, incurva; braeteze sub 5-jugex minute pallide. Taxi-L. obtusangula, huic habitu persimilis, differt foliis subminoribus, solum acutis (nee acuminatis) distincte lobulatis; foliolis magis profunde (ultra 4) et valde obtuse bifidis; perianthiis minus alte carinatis supra medium constrictis. Taxi-L. florida, foliis minoribus vix semicordatis; foliolis minime pro- funde cordatis, apice fere ad mediwm bifidis ; bracteis integerrimis et peri- anthii carinis papulosis differt. 6. Tax1-LEJEUNEA CREBRIFLORA, Spruce. Hab. 8. Gabriel fluvii Negro, in arborum foliis. F 10x75, 11x °85, ¢ sh—ds 3 flt 35x °45; br “6 X°75 per 85x 35™™, Late laxe repens pallida tenerrima crebre florifera, Caules pollicares et longiores bipinnati. Folia subcontigua, longitudinaliter fere inserta, oblique subfalcato-oblonga rotundata, basi minutissime inflexa; cellulee mediocres cequilatere, ad marginem posticum basinque majores, omnes valde diaphane. Folia ramea longe minora. Foliola dissita foliis 3-plo breviora oblato-orbiculata, ad vel ultra dimi- dium bifida, sinu triangulari, apicibus acutis. Flores monoici: 9 in ramulis iteratim innovatis seriatim secundi. Bracteze foliis } breviores, ligulato-lanceolate elobulate; bracteola late ligu- lata breviter bifida. Perianthia foliis caulinis breviora, subemersa, obpyramidato-clavata com- pressula, supra medium (vel fere a basi) alte 5-carinata, carinis sub- lzevissimis apice lato truncatis, rostello perbrevi. Andreecia ramulo tenui incuryo, folio collaterali subbreviore, constantia; bracteze 4—9-jugze parvee cito marcescentes. Var. arenicola. Folia minora seepius dissita, basi longe decurrente omnino elobulata, cellulis submajoribus.—In fluminis Orinoco arena, infra Esmeralda. Var. minutiflora. Foliola foliis 4-plo breviora. Bracteze fl. 2 minute parvilobulate. Perianthia carinis apice rotundato-truncatis. An- dreecia minuta, bracteis 2-jugis—Ad S. Gabriel, cum typo, in Gym- nopteridis fronde. Taxi-L. impleca 8. a priori distat caule crassiore ; foliis duplo fere minoribus, basi latioribus, apice angustioribus seepius subacutis, arctius reticulatis; foliolis vix ultra } bifidis; perianthiis brevioribus minus alte carinatis, carinis apice rotundo-prominulis (nec truncatis). 220 TAXI-LEJEUNEFA. i 7. TAXI-LEJEUNEA TENAX, Spruce. Hab. Caripi, prope Pard, in saxis maritimis, sterilis. F' 11x -95; lob 2; ¢gh3 f 35 x85; br-65;. br’? “6 xem Late depresso-cespitosa, viridis, siccando flavescens. Caules intricati, 2-pollicares tenaces, subcompressi, strato corticali cellularum majorum sectione compressarum pellucidarum, stratisque 2 v. 3 concentricis cellularum 3-plo angustiorum, constantes, vage ramosi, ramis valde inzequilongis, rarius subpinnati, pinnis interdum floriferis. Folia subimbricata dissitave plana v. seepius decurvula, haud raro torta, late semicordato-ovata, rotundata obtusave, rarius subacuta, integer- rima, basi minute complicata; lobulus 5-6-plo brevior involutus, nunquam obsoletus ; cellulase mediocres subpellucidze leptodermes, solum ad angulos parum incrassate, inferiores majores, submargin- ales plures multo minores. Foliola foliis plus 3-plo breviora suborbiculata, ad medium bifida, segmentis acutis v. obtusis, seepissime radicellifera. Flores monoici (steriles solum visi): 9 in ramo brevi semel bisve inno- vando-prolifero terminales (quasi seriatim secundi). Bractez foliis fere duplo minores, forma varie, plerumque altera latior oblique ovata obtusa, altera lanceolata acuta, lobulo angusto lineari pler- umque aucte; bracteola ovali-lanceolata vix ad medium usque bifida ; omnes bractez integerrime. Amenta ¢ lateralia, folio caulino breviora, oblongo-subglobosa ; bracteze 2-3-jugee majusculz. L. tenera, Sw.! Prodr. Fl. Ind. Occid. (ex ipso in hb. Hook.) fragilis est, nostra tenuior ; foliis sparsioribus, tam latis quam longis, obsolete lobulatis ; foliolis dimidio majoribus ; bracteis longe minoribus ; habitu tamen et foliis magnis valde similis. 8. TaxI-LEJEUNEA MACRORHYNCHA, Spruce. Ilab. Tavalosos Andium Peruvianorum, alt. 800", in filice. KF 6x°4, 6x45, ¢ gh; f™°125 «125-175 ; br 5x12; brit 4x 155 per *65 x °35, rostellum *1™™, Pusilla tenuis viridis arete repens intricata. Caules $—? pollicis longi, inordinatim decompositi, ramis brevibus. Folia subimbricata contiguave, basi laté longitudinali subdecurrente inserta, oblique ovata abrupte acuta apiculatave—raro obtusa rotun- datave—integerrima vel celluloso-subcrenulata, elobulata; cellule mediocres parum elongate convexule pellucidissime. Foliola foliis 4-plo breviora distantia subrotunda, ad vel infra medium bifida, segmentis ovato-lanceolatis acutis. Flores monoici: 9crebri, in ramo brevissimo terminales, innovatione iteratim prolifera vel simplice suffulti. Bracteze foliis breviores sub- erectze anguste lanceolate acute, basi parvi-lobulatee (vel altera non) ; bracteola lanceolata breviter (ad +) bifida, segmentis acutis, tenuis- Sima. Perianthia foliis sublongiora clavato-oblonga vel pyriformia longirostria subcompressa 5-carinata, carinis apice rotundis vix prominulis obscure subpapulosis, demum 4-fida, lobis cuspidatis. Amenta @ lateralia folio collaterali saepius longe breviora; bractesw 1-3- (raro usque ad 5-) juge, TAXI-LEJEUNEA. 220 Obs.—The ? branches are rarely uniflorous—very mostly they are repeatedly floriferous, one or two pairs only of leaves intervening between two consecutive flowers. This character, and the usually acute leaves, have induced me to place the species in Tawi-Lejewnea rather than in Hu-Lejeunea, to which its humble stature assimilates it. 9. Tax1-LEJEUNEA OBTUSANGULA, Spruce. Hab. Ad fluvium Guamd, prope Pard, in palmarum truncis. #87, lob “15, ¢ p53 f'* 45% 55; br “75; br -6x-5, 6x°43 per HEI 4b, 10x “452, Prostrata, matteolas latas sistens, pallide viridis, ad ramos rufescens. Caules 1—-2-pollicares parce vage ramosi. Folia inferiora subdissita, superiora ad 4 lat. imbricata majoraque, patentia plano-decurvula, longitudinaliter inserta, praelate semicor- dato-ovata, subabrupte acuta, integerrima vel rarius apice angulata subdenticulatave, basi antica caulem late transeuntia, postica recte complicata; lobulus folio 5-plo minor semiovatus inflatus apice incurvus; cellule mediocres plane pellucidie, marginales convexulz. Foliola imbricata dimidium folium superantia (inferiora minora dissita), cordato-orbiculata-subovatave, paulo latiora quam longa, ultra 4 obtuse bifida, sinu fundo lato lunulari, segmentis acutis inequi- longis. Flores monoici: @ rari, in ramo brevi terminales, innovatione simplice —raro iterum florifera—suffulti. Bracteze foliis minores, erect lanceolatze acute crispulee, obtuse denticulatee integerrimeeve, a basi ad $ alt. lobulo lineari auctze; bracteola obovata ad 4 acute bifida, segmentis acutis, ' Perianthia emersa, foliis caulinis longiora, clavato-oblonga, supra medium constricta, apice dilatato rotundata, inferne teretia apicem versus 5-gona, angulis vix carinatis, demum apice fissa totaque fere longi- tudine teretia. Andreecia brevia tenuia; bracteze paucijugee. Quoad ramum @ plerumque uniflorum inter Hu-Lejeuneam et Tazi- Lejeuneam exacte media est. Taxi-L. asthenica, specie aftinis, foliis obsolete lobulatis; foliolis minoribus haud cordatis, sinu apicis acuto; ramis ? multifloris, etc., distincta est. 10. Taxi-LEJEUNEA FLORIDA, Spruce. Hab. In valle Leito Andium Quitensium, ad arbores, alt. 2500™. F8x°‘7, ¢ dey; f'* 35x °4; br 55x °3; per “8x 38mm, Tenella ceespitosa saturate viridis valde floribunda. Caules subsemi- pollicares procumbentes implexi, pinnati vel subbipinnati, ramis superioribus confertis, inferioribus sparsis. Folia parum imbricata, ad angulum 50°—60° patentia, subplana, oblique late ovata subabrupte acuminulata acuta, basi antica dilatata caulem paulo transeuntia, postica decurrente lobulo 0 vel obsoletissimo; cellulze mediocres leptodermes pellucide. Foliola foliis duplo minora ovato-orbiculata ad medium fere bifida, sinu triangulari subobtuso, segmentis acutis, basi rotundata vel obscure cordata. 222 TAXI-LEJEUNEA. Flores monoici; @ ad ramulos microphyllos seriatim secundi, pauci (1-3) ad quemque ramulum. Bractez foliis dimidio breviores erecté oblong vel semiobovate apiculate obtuszeve, lobulo nullo vel minutissimo; bracteola obovata emarginato-bifida. Perianthia subemersa obconica clavatave minute rostellata, alte 5- carinata, carinis papulosis; primum ab ipsa basi carinata, demum turgescentia fere teretia, solum apicem versus 5-carinata, carinis apice rotundatis nec prominulis. Amenta ¢ lateralia, folio caulino collaterali breviora, oblongo-rotunda, bracteis 3-jugis majusculis, vel longiora, bracteis 5-jugis. Foliis, bracteis bracteolisque, omnibus integerrimis, a plerisque Tas- Lejeuneis diftert. 11. TaxI-LEJEUNEA ASTHENICA, Spruce. Hab. S. Carlos del Rio Negro, in “ caatingas,” ad arborum truncos ramos- que; Tarapoto, secus rivulos, supra alias hepaticas repens, alt 600™. Fe8x°8, “75x 68, ¢ fy; f™ 3x35, *2x-2, 15x15; br “7x35 per O94, *7 x Bee. Pallida pellucida flaccida, repens, ex parte pendula. Caules 1-3-polli- cares tenuissimi pinnatim ramosi, ramis pro more brevibus. Folia contigua vel paulo imbricata, angulo 70° patentia, plana vel de- euryo-secunda, longitudinaliter inserta, late semicordato-ovata apice decurvo acuminulata acuta vel sepius 2-3-dentata, basi obsolete lobulata; cellule: mediocres pellucidze subconformes. Foliola inferiora parva distantia, foliis 5-plo minora, superiora solum 24-plo minora, cordato-orbiculata, ad medium fere bifida, sinu seg- mentisque acutis. Flores monoici: 2 in ramis ramulisque homotropo-innovandis seriatim secundi. Bracteze foliis subminores oblongo-lanceolatz, apice trifidee vel subspinulose, basi lobulo minuto inflexo digitiformi aucte; bracteola oblonga ad 4 bifida paucidentata. Perianthia subemersa subcylindrica vel anguste obconico-pyriformia, medio supero 5-carinata, carinis minus altis apice rotundato-subpro- minulis, minute rostellata. Andreecia folio caulino longe breviora; bracteee minutw sub 3-jugee. 12. Taxi-LEJEUNEA BoMBONASENSIS, Spruce. Hab. Ad pedem Andium Quitensium, secus fluvium Bombonasa, in cor- tice. F 9x9; ¢ py; fit 4x °4; br 8; br’* "75 x °35; per 65-75 x “3m™. Late laxe repens, tenella virescens. Caules bipollicares tenues bipinnati; rami invequilongi seepe florescentiis Q et ¢ pinnulati. Folia contigua vel subdissita, fere longitudinaliter inserta subplana, late suboblique semicordato-ovata, subacuta obtusave, alia leviter acumi- nata, basi postica lenissime incurva vel omnino eplicata; cellule mediocres eequilaterze subpellucide. Poliola distantia, foliis plus duplo minora, orbiculata ultra medium bifida, segmentis subacutis. Flores monoici: 9 ad ramos ramulosque abbreviatos terminales, basi innoyationem plus minus iteratim floriferam proferentes (unde TAXI-LEJEUNEFA. 275 laterales et seriatim secundi viderentur). Bracteze foliis subbreviores lanceolate obsolete denticulate angulateve, antice brevi spatio seepe connate, lobulo minuto quadrato; bracteola obovato-lanceolata vel subrhomboidea ad medium bifida, segmentis acutis. Perianthia vix emersa clavato-pyriformia retusula obscure rostellata, in- ferne teretia supra medium 5-carinata, leevia, post capsulam emersam basi seepe elongata quasi-stipitata. Andreecia ad ramos sparsa brevia spiceeformia recta; bractese 3-6-jugze. Anne inter Tazi-L. implexe varietates enumeranda? Differt autem foliis majoribus latioribus; foliolis praecipueque bracteolis magis profunde fissis. 13. TaxI-LEJEUNEA IMPLEXA, Spruce. Hab. In arborum cortice ad fluvii Negro cataractas, necnon secus fl. Huallaga juxta Yurimaguas et Tarapoto. Peapeiolu x 6, € sx; f'* "3X30, “2x "2; br. “7; per “15 x30. Pallide viridis tenera prostrata. Caules 1-2-pollicares subpinnatim decompositi implexi. Folia subimbricata plana, oblique vel fere longitudinaliter inserta, late semicordato-ovata abrupte acuta vel subacuminulata—raro rotun- data—integerrima vel apice angulari-denticulata, basi decurrente angustissime inflexa, lobulo minuto inffato vel subnullo ; cellule parvule subconformes eequilatere pellucidee. Foliola sub 3-plo breviora orbiculata (suboblata) ad 4 acute bifida, seg- mentis acutis. Flores monoici: 2 ad ramulos microphyllos seriatim secundi (revera in innovationibus perbrevibus successivis terminales). Bractez foliis subeequilonge lanceolatze subacuminate subdenticulate, anguste lobulatee vel non; bracteola libera oblonga vel cuneato-lanceolata ad 4 anguste bifida, segmentis subacuminatis, utrinque uni-pauci- denticulata. Perianthia subemersa clavato-oblonga brevirostria vix compressula, superne altiuscule 5-carinata, carinis apice rotundo-prominulis sub- leevibus. Amenta ¢ lateralia, folio collaterali plus minus breviora—rarissime in ramo terminalia—tenuia deflexa; bracteze 5-8-jugz parvee. Var.? callistachya 8. Folia seepe latiora densiora. Foliola paulo ultra i fissa. Flores 9 sepius in ramis normalibus, iteratim proliferis—rarius in ramulis parvifoliis—positi. Bracteze undulatez parce grosse serrate. Perianthia fere a basi carinata, carinis superne insigniter compressis ala- formibus interdum papulosis. Andreecia nonnulla valde longispica, bracteis ad 20-jugis— Ad fl. Negro cataractas cum typo. Var.? retiflora S. Major albescens. Folia apice rotundata, superiora interdum solum obtusa—nunquam acuta. Perianthia obconica altiuscule 5-carinata pellucido-reticulata. Bractez integerrime vel grosse subdenti- culatzee—Ad Yurimaguas juxta fl. Huallaga. 14. Taxi-LEJEUNEA TAPAJOSENSIS, Spruce. Hab. Ad fluminum Amazonum et Tapajos confluentiam, in ramorum cortice. Hepa op, lob 1, ¢as3 7 “4x35; br. b; br 4K 25o™. Albescens tenuis arcte repens. Caules 2-pollicares subpinnatim ramosi, ramis brevibus, subparalleli, 224 TAXI-LEJEUNEA. Folia paulo imbricata late semicordato-ovato-oblonga, rotundata integer- rima, raro subangulata, margine toto cellulis parvis quadratis limbata, basi brevissime inflexa, plica folio 7-plo breviore rhomboidea acuta plana vel subinvoluta; cellule ;5™™ pellucide, inferiores sub- majores. Foliola foliis duplo breviora orbiculata vel late elliptica, profunde (fere ad 2) bifida, sinu segmentisque subacutis, cellulis lis foliorum duplo minoribus. Flores dioici: ? ad ramos monotropo-innovandos (raro parvifolios) seriati, pauci (sub 2); bracteze (juniores), foliis longe minores ovales obtusze profunde bifide, lobulo lingueeformi acuto; bracteola minor oblonga ad 4 acute bifida, apicibus acutis. Perianthia deerant. Foliolis fere bipartitis distincta. Forsan Hygro-Lejewnea erit. 15. TAxI-LEJEUNEA PARAENSIS, Spruce. Hab. Caripi prope Para, in arboris vetustz cortice. F “75 X°6; 85 X°715 5.lob “1.¢ ay gf" “3 Ks00" Elatiuscula, prostrata pallide viridis; caules 1—14-pollicares intricati paulo subpinnatimque ramosi. Folia flaccidula subdecurva subimbricata, oblique semicordato-ovata, apice vix obliquo sensim brevi-acuta, basi subrecte complicata, lobulus folio fere 8-plo brevior, foliorum caulinorum ad pliculam angustam re- dactus, ramorum subinflatus; cellule ..™™, subpellucide, annulo angusto opaco cinctee, parietibus incrassatis, convexo-prominule (unde folia margine celluloso-erosula). Foliola foliis 24-plo minora, orbiculata, paulo latiora quam longa, ad medium bifida, segmentis subacutis. Fl. dioici, Andreecia (rudimentaria) cauligena, minutula, bracteis pauci- jugis. Suscenus XX VIL—MACRO-LEJEUNEA, 8. Subgenus, Taxi-Lejeuneis Codonocoleis e perianthiis parvis inflatis ecarin- atis, apice solo corrugatis, affine, differt ramulis 9 simplicissimis unifloris et florescentia dioica.—Caules interdum inordinate elongati, flaccidi simplices pinnative, seepe florescentiis pinnulati. Folia pler- umque convolutiva acuminataque, raro obtusa. Foliola persepe maxima cordata. Cellule mediocres parvuleeve vix incrassate. Hab. et Distr. Ad arborum truncos, ramulos foliaque, etiam ad saxa, in montibus tropicis sylvaticis, ad alt. 3500™ usque. Species 4 hucusque cognite sunt, se. L. pallescens Mitt. et L. apiculata Spruce, ex Andibus Quitensibus et Peruvianis; L. lineata L. et G. ex Antillis (etiam ex ins. Borboniz 2); et L. prominula Gotts. ex Andibus Columbiz. 1. Macro-L. pallescens. Prelonga pallida. F. dissita erecto-patentia con- volutiva semicordato-ovata acuminulata integerrima, raro apice sub- denticulata, lobulo triplo breviore inflato y. obsoleto. Foliola foliis fere wquimagna, breviora, late cordato-ovata ad 4 bifida, segmentis erectis acuminulatis. Br. foliis plus duplo minores subzequilobze serrate; bracteola cuneato-lanceolata vix ad 4 bifida. Macro-LEJEUNEA. 225 2. Macro-L.subsimplex. Sordide viridis flavidave. F. subimbricata diver- gentia subplana semicordato-ovata ex rotundo apiculata celluloso- crenulata, lobulo 6-plo breviore inflato. Foliola eequimagna cordato- reniformia ultra } bifida, segmentis acuminatis. Br. foliis sub- breviores subeequilobe integerrime ; bracteola obovata vix ad 4 bifida. [Macro-L. lineata. Sordide flavida. F. subimbricata divergentia falcata cordato-lingulata obtusa, lobulo parvulo valde ventricoso fere glo- boso. Foliola plus duplo breviora ovato-rotunda ad 4 bifida, seg- mentis acutis. Br. foliis longiores valde falcatse anguste lobulate ; bracteola solum emarginata. Per. cylindrica subcompressa ecarinata apice quadrangula.—Ins. Antillis. ] 1. Macro-LEJEUNEA PALLESCENS, Mitt. ! In Hook. Journ. Bot. (1851), p. 360. Hub. Andes Quitenses in montibus Guayrapata, Tunguragua, ete., in mM. Azuay fertilis, ex arborum ramis pendula.—In herb. Hook. adest, prope Quito a JAMESON lecta. F 16x°7, 1:0x°6; ¢ pay; fl 1:0x°9, 6x6; br 5-6 longe; per , x Pallide viridis flavidave flaccidissima substratificata; caules 4—9-poll. longi tenues subsimplices, raro subpinnatim ramosi, ramis dissitis inzequilongis, aliis brevissimis floriferis, Q vel ¢. Folia dissita v. vix imbricata, tenuia, erecto-patula, convolutiva, basi longe decurrentia oblique semicordato-ovata, subabrupte acuminulata acuta integerrima v. apice angulata raro subdenticulata, basin versus sinuato- complicata; lobulus lobo 3-plo brevior, v. minutus, raro obsoletus, ovato-rhombeus inflatus, apice acuto inflexo raro explanato; cellule mediocres parvulve, leptodermes zequilaterze pellucide, fere planis- simee, inferiores sensim majores. Foliola subimbricata foliis sat breviora seepe autem latiora cordato-ovata ad y. paulo ultra } bifida, segmentis acutis acuminulatisve parallelis v. forficatis, auriculis baseos majusculis subimbricatis v. recurvis, lateribus insigniter incurvis. Flores dioici: 9 cauligeni ramigenique minuti, f. caulino breviores, inno- vatione nulla suffulti; bracteze bijugee, exteriores minute, interiores foliis plus duplo minores, vix ad 4 usque bilobee, lobis ovali-lanceo- latis acutis serratis, inferiore subangustiore; bracteola cuneato-lan- ceolata, fere ad 4 bifida, segmentis subacuminatis, serrulata, hinc cum bractea basi connata. Perianthia f. caulinis subduplo breviora, obconico-pyriformia, inflata levissima, apice rotundato-depresso obscurissime 4—5-umbonulato, ore minuto, rostello nullo. Calyptra vix brevior tenuis, apice irregu- lariter rupta. Capsula globosa. Amenta ¢ in planta propria robustiore (!) cauligena, f. caulinis sub- longiora decurva albida; bracteze 6-10-jugee parvee subconfertee valde concave bilobze, lobis subeequalibus ovatis obtusis. Bracteole ovales apice bifidee. The 9 flowers are terminal on very short ramuli, which never innovate, and have only oue pair of minute leaves (or bracts) below the involucre proper. These ramuli are often pretty copiously TRANS, BOT. SOC. EDIN, VOL. XV. 2F o~) 226 Macro-LEJEUNEA. scattered along the stem and branches; they spread horizontally and distichously, and thus differ essentially from the multiflorous 9 branches of Taxi-Lejeunea, 2, Macro-LEJEUNEA SUESIMPLEX, Mont. Ann, des Sciences Nat, (1843). Hab. Andes Peruvianos, in mentibus Tarapotensibus, ad saxa. #65 x 55; lob +1; ¢ ay; f'* °55x°7; br 55; br -5 x -35™m, Prostrata substratificata, sordide flavida viridisve; canles 2-3-pollicares parum ramosi, flaccidi, ramique elongati, simplices v. floribus ? pinnulati, supra 3 cellulas lati, Folia subimbrieata, a basi brevi semierectA saccat4, abrupte divergentia, subplana, late oblique semicordato-ovata, ex apice inequilatero- rotundato (margine postieo convexiore) subabrupte apiculata acuta, apiculo 3-4e, longo, basi 2-3c. lato, margine toto celluloso-crenulata, antice sub apice denticulo sepe aucto; lobulus folio 6-plo brevior inflatus margine transverso inflexo, apice occulto; cellule mediocres ad angulos perpaulo inerassate, granis chlorophylli oblongis in annu- lum angustum opacum congestis, ceeterum pellucide, simum versus subelongatie, Foliola cordato-reniformia, auriculis baseos majusculis, apice vix ultra 4 bifida, segmentis contiguis acuminatis, Flores dioici: ramuli 9 simplicissimi laterales, folia caulina perpaulo excedentes, foliis infra-foralibus minutis 1- (raro 2-8-) jugis. Brac- tee propriz foliis subbreviores acute integerrime, lobis lanceolatis, postico paulo breyiore duplo angustiore; bracteola obovata vix ad 4 bifida, In monte Campana inveni formam tenuiorem magis et subpinnato- ramosam, foliis angustioribus, foliolis duplo minoribus suborbiculatis; quoad flores @ ceterosque cataracteres typo supradescripto omnino con- formem, Mensura partium sequitur: F ‘65 x °45, lob 1; ¢ #5; fi? 3x °3, 385 x 135mm, L. pallescenti et subsimplict plane aftinis est L. lineata L. et Lg.! (in hb. Hook,—ex insula S. Christophori) quoad florescentias laterales sim- licissimas et perianthia leyia ecarinata; differt foliis falcatis obtusis, ishals fere globaso,—In ‘Synopsi Hep.’ L. subsimplea descripta fuit folias omnino elobulatis, unde eandem esse ac meam Andinam primum non recognovi; postea autem in Exsiceatis Antillanis Cl. Husnoti eandem vidi, Gottscheo nominatam, foliis lobulatis cet, char, plante Andinze perfecte conformem, Suscenus XXVII,—OTIGONIO-LEJEUNEA, 8 Plantul perianthiis fere teretibus, apice solo carinatis, carinisque in alam auriculamve, integram vel fissam, ultra perianthium recte productis; necnon e foliis laxe textis, seepe elobulatis ad T'aai-Lejewneas Codonocoleas accedere viderentur; yalde diverse autem statura pusilla, foliis ete. post OTIGONIO- LEJEUNEA. 220 siccationem tardissime emollituris, foliolis parvis, interdum minutis, ramis 2 haud parvifoliis (quamvis seepe multifloris tanquam in Taz7- Lejeunets), perianthiis pro more immersis.—Hu-Lejeuneis Parvistipulis quoad vegetationis organa majorem. similitudinem habent; perianthiis levibus apice solo carinato-auriculatis, calyptrz stylo protruso ad spe- ciem longirostratis (rostello vero subnullo), longius divergunt.—0O. L. 5-umbonata, pro perianthii carinis superne distinctioribus, apice autem solum in umbones prominulis, ab 0.-Lejewneis typicis recedit; specimina tamen aquam tardissime imbibunt, czterisque caracteribus omnino cum O.-Lejeunets convenit. Huic peraflinis est Hu-Lejeunea Tarapotensis, nex- umque inter Hu-Lejeuneas et Otigonio-Lejeuneas bene prebet.—Quoad perianthium apice 3-5-cornntum-auriculatumve affinitatem aliquantulam cum Cerato-Lejewnea monstrat; auriculz autem semper plane, nec con- volute (quales in C.-Lejeunea) sunt. Cerato-Lejewnea differt insuper statura majore, colore lurido, textura firmiore, presentia foliorum in utriculum magnum convolutorum, denique perianthiis. Hab. et Distr. In sylvis tropicis densis ad truncos vetustos preecipueque ad putrescentes. Extra sylvam Amazonicam—ubi 5 species rarius et sporadice occurrunt, in Andibus supra 500™ alt: haud ascendentes— nullibi quantum scio inyente. 1. 0.-L. xiphotis. Dioica? F. rotundata raro subacuta, lobulata sub- crenulata. Foliola fere 4-plo breviora ultra 3 bifida, segmentis acuminulatis. Br. foliis submajores subzequilobz acute crenulato- serrulate; bracteola ovalis fere ad 4 bifida. Per, subimmersa pel- lucida ovalia, carinulis apicis in auriculas erectas lanceolatas ple- rumque integras productis. 2. O.-L. schizotis. Monoica. F. majuscula, omnia rotundata integer- rima, pleraque elobulata. Foliola 5-7-plo minora ad 4 bifida, seg- mentis acutis. Br. foliis multo minores inzquilobz; bracteola ligulata ad } bifida. Per. emersa pyriformia, apice 4-5-carinato- auriculata, auriculis 2-3-laciniatis conniventibus. 3. 0.-L. acanthotis. Dioica, F. semicordato-ovata subacuta suberenulata lobulata. Foliola 3-plo breviora ad 4 bifida, segmentis subacuminatis. Br. foliis majores inzquilobe grosse serrulate; bracteola ovali- lanceolata subserrulata ad 4 bifida, segmentis tenui-acuminatis. Per. immersa clayato-pyriformia carinata, apice in auriculas 3 y. 4 erectas ligulatas (summo apice 3-spinulosas) producta. 4. 0.-L. cyrtotis. Monoica. FF. rotundata, ramea subacuta, elobulata. Foliola plus 3-plo minora ad 3 bifida, segmentissubobtusis. Br, foliis zequilong integerrimz, altera elobulata; bracteola ovalis breviter bifida. Per. immersa clavato-cylindrica, carinis apicis in cornua brevi-subulata porrectis. 5. 0.-L. 5-wmbonata. Monoica. F. abrupte acuta, inferiora rotundata, sepissime elobulata. Foliola subtriplo minora ad $ bifida. Br. foliis longiores crenulatze subserratz parvilobulat; bracteola obovato- lanceolata bidentata. Per. immersa pyriformi-oblonga supra medium 5-carinata, carinis apice in cornua (umbonesve) brevissima obtusa porrectis. 1. Or1conto-LEJEUNEA XIPHOTIS, Spruce. Hab. Tauat, prope Pard, in cortice. F -38 x30, lob 09, css; f'* ‘1x 125; br. lobus “4x15; br'* *4%-25; per aX °25™™, 228 OTIGONIO-LEJEUNEA. Pusilla pallida repens, aliis Lejewnets intricata. Caules semipollicares vage subramosi, apice seepe longe simplices. Folia subimbricata subdecurvo-concava, basi angusta inserta, late dimi- diato-ovata, vel cuneato-obovata, rotundata—raro abrupte acuta, parum celluloso-crenulata, margine postico supra lobulum recto vel subconcavo basin versus recte vel subsinuato-complicata; lobulus folio 4-plo brevior turgide ovoideus, sinu excisulo, apice seepius occulto; cellule parvule zquilatere pellucida. Foliola distantia, foliis 4-plo fere breviora, subrotunda, ultra medium acute bifida, sinu lato, segmentis subdivergentibus acutis acuminu- latisve. Flores dioici (?): Q in ramo brevissimo terminales, innovatione suffulti. Bractez foliis sublongiores, perianthium obtegentes, ad % compli- cato-bilobe, angulate et celluloso-crenulatee—raro etiam hic illic subdenticulatee, lobis lanceolatis acutis subaequalibus vel inferiore angustiore; bracteola ovalis vel longe obovata, vix ad medium anguste bifida, segmentis acuminulatis. Perianthia subimmersa parva pellucida, ovalia ovatave, subteretia, solum apicem versus 4—5-carinata, carinis apice in auriculas lanceolatas linea- resve, integras vel 2-3-fidas erecto-conniventes protractis; infra auriculas constricta, apice pertusa erostria. Calyptra pyriformis capsule zequilonga, stylum e perianthii orificio ultra auriculas exser- tui apice gerens. 2. OTIGONIO-LEJEUNEA SCHIZOTIS, Spruce. Hab. In fl. Negro et Uaupés ripis, ad truncos inundatos etiam ad pro- stratos putrescentes. F7x°5, c. sh; f 1x07, 15x 1; br -5; br’? 4x °13; per 65 x 35; br d 1-"15™™, Pusilla viridis in stratum tenue effusa. Caules 3—}-pollicares, repentes, sat ramosi vel etiam decompositi, ramis paucifoliis. Folia contigua vel parum imbricata, assurgentia plana longitudinaliter inserta, oblique oblonga, vel (basi subdilatata) ovato-oblonga rotun- data elobulata, alia subfaleata; cellule mediocres, centro pellucida ambitu opacze, inferiores sensim majores. Foliola distantia, cauli appressa eodemque vix latiora, foliis 5-7-plo minora, ovata, ad 4 bitida, segmentis lanceolatis acutis. Flores monoici: @ in ramo seepe iteratim innovando-prolifero terminales. Bracteze f. caulinis multo minores, ab apice ad 4 solum bifide, dein complicate ; lobo ligulato-oblongo rotundato-truncato, lobulo lineari- rhomboideo apice libero triangulari-lanceolato acuto; bracteola ligu- lata breviter (ad 4—} alt.) acute bifida, segmentis acutis, Perianthia f, caulinis subeequilonga, pyriformia teretia, solum apicem versus 5-carinata, carinis 4 (vel omnibus) apice cristato-auriculatis, cornutisve, cristé in lacinias 2 vel 3 subulatas conniventes fiss4, rarius subulé unicé constante, vertice convexo perforata (orificio minuto vix tubulari), stylo fructus maturati pralongo alte protruso ad speciem rostellata. Amenta ¢ crebra ramulo tenui constantia, plerumque folio collaterali longiora; bractew 5-7-jugw minute (foliis 5-plo brevieres), com- presso-galeformes, apice acuminato-subrostrato seepius integra. OTIGONIO-LEJEUNEA. 229 3. OTIGONIO-LEJEUNEA ACANTHOTIS, Spruce. Hab. San Carlos del Rio Negro, in cortice. F 55x 5, 55x °5; lob.-125, ¢ 2; f'* ‘2x °25, 18x °18; br. lobus -8 x “35; eee ex 4; per “7 x -25™™. Pusilla prostrata pallide viridis. Caules }-pollicares bipinnatim sub- ramosi intricati. Folia subimbricata subplana horizontaliter patula, obscure falcata, semi- cordato-ovata abrupte subacuta, margine plus minus celluloso- erosula apiceque seepe angulata denticulatave, basi sinuato-compli- cata; lobulus 5-plo fere brevior late semiovatus inflatus, margine ineurvo ; cellule parvule pellucidissime, pariete trigonis parvis subinerassato, inferiores longiores latioresque vix autem in ocellum aggregate. Foliola distantia, foliis triplo minora, orbiculata, ad medium bifida, segmentis subacuminatis, acutis. Flores dioici: 2 terminales, innovatione simplice proliferave suffulti. Bractez foliis majores complicato-bipartite, lobis lanceolatis acutis grosse serrulatis, inferiore paulo (vel duplo) minore; bracteola ovali- lanceolata, ad 4 bifida, segmentis tenui-acuminatis, serrulata vel subintegerrima. Perianthia bracteis immersa, clavato-pyriformia teretia (ecarinata), apice in auriculas 3 vel 4 erectas ligulatas (apice divaricato-3-spinulosas) protracta. Calyptra perianthium replens, pyriformis, stylo protruso coronata. Otigonio-L. xiphotis differt foliis dimidio minoribus concavis integer- rimis basi angustis (nec semicordatis); foliolis minoribus magis profunde bifidis; bracteis duplo minoribus integerrimis; perianthiis ovalibus apice carinatis, carinis in auriculas lanceolatas pro more integras protractis. 4, OTIGONIO-LEJEUNEA CYRTOTIS, Spruce. Hab. Ad fl. Cauapuna, fluvio Negro tributarium, in truncis prostratis. F “75x °65, “75x °5; lob 0; em. sh; f' 2°15; br °75 x35; br abaro)-8 Per. OX 50, 79 X icon, Otigonto-L. xiphotis perafiinis, differt caracteribus sequentibus. Pallidior, tenerrima minus ramosa. Folia ovato-oblonga rotundata, ramea superiora spe obtusa subacutave; cellule submajores (medi majusculz, margines versus mediocres) leptodermes ambitu anguste opace. Foliola submajora ovali-rotunda orbiculatave ad 4 bifida, segmentis acutis obtusisve. Fl. ? in ramo brevissimo terminales, innovatione parva sumplice foliosa, v. persepe g, sutfulti; bractez longiores, ligulato-lanceolats plerumque acute, altera elubulata, altera lobulo perangusto lineari a basi ad medium aucta; bracteola longe brevior ovalis apice breviter bifida. Perianthia immersa (demum, basi elongata, subemersa) clavato-cylindrica compressula truncata brevi-rostellata, subteretia, solum apice ipso 4-5-carinata, carinis in cornua brevi-subulata porrectis, fructu egresso aperta, obeonica, ore 10-dentata. Amenta ¢ f. caulino breviora tenuia, seepe in ramulo dimidio inferiore nudo terminalia; bracteze 4—5-jugee parvee subconfertee—In ramulis raro adyeniunt folia lobulo brevi aucta. OTIGONIO-LEJEUNEA. ho © ( : Je , ss X # Joo re? Gee cas es ‘ Te, \ . ! / / NN al eer pO aches meee! AL GLE Rhy ay ~ ‘; P, R Braithwatte ad mat. del. ERULLAN LA BEGORNIS TIPU LA. ¥ Huth Litht Edint = . . ae. e a ~~ ay as “ é [a ; . wv , 9! ren Ae oo : 7 a ~~ ot iA ae a a eet i¥ =! Co DI gee, SY ee eee ae 7) LYVALV SIM 17] Z wy Wa FA Fs = Ae Os A iors NEL BS ssa i A CIR EL NE eg RL eli RMP ES rar MEU ARt YL atiage yh, TF FVM TR Tah RT NPS us PUTAS EY \ ; #1 , ci 4 ( * it » co ae TRANSACTIONS AND PROCEEDINGS OF THE BOTANICAL SOCIETY. VOL, XV.—PART II. oon SAwNNIT YAZ 7 -l x 1; br'9 x 9, 1°70 x 10; per 4:5 x “6b; caps 1:25 X ‘5™m, Laxe cespitosa, e pallide viridi rufescens. Caules 1-2-pollicares suberecti pendulive flexuosi pinnati; rami decurvo-subsecundi, subdichotome divisi, ramulis sepe divergentibus, caulesque viminei rigiduli apice subattenuati non autem flagellares nec radicelliferi. Folia distantia minuta, quadrato-subrotunda incurvo-concava ad medium 3-4 fida, laciniis suberectis subulatis subobtusis, mediis sublon- gioribus; cellule parvee quadrato-6-gonz subchlorophyllose. Foliola distantia paulo minora subplana quadrata ad medium 4-fida, segmentis contiguis subulatis obtusis digitiformibus. Flores dioici: 9 postici; bracteze 3-jugze appresse, intime foliis 6-8plo longiores orbiculate valde concave, apice 3-4-apiculate, margine hic illic subspinulose. Perianthia alte emersa, bracteis 5plo longiora, lineari-fusiformia obtuse trigona apicem versus profunde 3-sulcata, ore constricto subinteg- errima, cellularum stratis 2 conflata. Capsula 3}plo brevior, cylin- drico-oblonga rufo-badia. _E foliorum minutie caules ramique primo visu denudati videntur. Species affines distinguende: L. microphylla Hook. foliis palmato- quadripartitis; L. patens Ldnbg. foliis patenti-divergentibus cuneatis quadripartitis ; L. trichodes Nees, nostrati aflinissima caule arhizo et foliis inequaliter quadrifidis (minus profunde tamen), differt caule regulariter pinnatim ramoso; bracteis longilaciniatis; perianthiis brevioribus pyra- midatis; denique florescentia monoica. 362 LEPIDOZIA, 4, LEPIDOZIA CHSPITOSA, Spruce. Hab, Ad arborum vetustarum truncos in monte Tunguragua, alt. 2500™, et in sylva Canelos. Fx °45 5 ¢ ge 3 f* 35x35; br 8-10; per 45x 5m, Virescens humilis dense czespitosa. Caules pollicares tenues suberecti pinnati; rami decurvo-secundi, breviusculi, alii apice tenui flagel- lari ; stolones postici (perrari) foliosi ramosique, nullo aphyllo. Folia confertiuscula, basi late patentia, supra medium incurvo-erecta, cuneato-subquadrata, basin anticam versus rotundato-dilatata, mar- gine repandula, paulo ultra 3 quadrifida, laciniis subeequimagnis subulatis acutis subacuminatisve ; cellule parvee subopace, limitibus pellucidis haud incrassatis, cuticula minute tuberculosa. Foliola perpaulo minora 4- (raro solum 3-) fida, laciniis iis foliorum sub- minoribus. Flores dioici: foem. postici. Bracteze perianthio arcte appresse, tristichee, suborbiculate concave, apice breviter 2-3-fidule, margine hic illic spinulose, 4-5-juge, extime minute, sequuntur 3 vel 6 foliis majores, intimee paulo minores sunt, omnes bractec firmz pellucidee rectangu- lari-areolate. Perianthia maxima anguste fusiformi-tubulosa (9plo longiora quam lata) incurva subteretia, apice constricto solo leniter trisulca, denique breviter trifida, substantia firma, 3-4 cellulas crassa. Pl. mase. tenuior. Amenta ramulum posticum incurvum sistentia, laxe julacea albida. Bractez foliis rameis equimagnee late orbiculatee concave apice breviter bidentata, margine hic illic repande; brac- teolee duplo angustiores ovales apice bidentate. Species heecce in m. Tunguragua sat frequens facie aliquantum varia- bilis est, nune viridissima brevis rigidula arcte pinnata; nunc pallida tenera; in sylva Canelos longior et tenuior, muscis seepe consociata, in- venitur. A L. reptante certe diversa florescentia dioica, habitu firmiore ; caule magis plumoso, flagellis posticis nullis; foliis minoribus ultra 4 fissis, laciniis angustioribus, cellulis duplo fere minoribus ; perianthiis elongatis perangustis crassioribus. 5, LEPIDOZIA DENDRITICA, Spruce. Hab. In monte Tunguragua, ad arborum pedem, alt. 2500", sterilis; etiam in sylva Canelos, alt. 1500™. F. caulina ‘8x7, ramea 6x'4; € ay; f caulina 6x45, ramen 45 x 35mm, Mediocris czespitosa viridis. Caules bipollicares suberecti tripinnati dendroidei, rammis omnibus decurvulis, aliis breviusculis crassis, aliis attenuatis et valde parvifoliis. Folia caulina subcontigua cucullato-concava valde oblique ovato-triangu- laria, margine antico plus duplo longiore rotundato basi integerrimo vel 1-3-spinuloso, postico recto basi spinis 1 vel 2 aucto, vix “ultra 4 quadrifida, laciniis subulatis acutis incur vis; cellule parve. F. ramea imbricata minus asymmetrica, ad 4 quadrifida, laciniis acu- minatis porrectis, hine vel utrinque basi subbispina. Foliola subminora subquadrata, ad 4 quadrifida, laciniis anguste subulatis vix acutis, basi hine vel utringue paucispina. LEPIDOZIA. 363 L. tncurvata Ldnb. certe distat caule simpliciore, foliis distantibus sub- quadratis fere symmetricis, basi integerrimis; L. truncatella Nees. (ex Africa Australi) csule elongato laxe bipinnato, foliis omnibus imbricatis magis profunde fissis hine solum basi subspinosis, foliolis multo minoribus ; L. cespitosa (nobis) statura duplo minore, foliis minus obliquis, et preecipue foliolis ultra $ fissis basi inermibus. 6. LEPIDOZIA MACROCOLEA, Spruce. Hab. Andes Quitenses, ad terram et arborum truncos m** Tunguragua. F 6x °6, °4%°4; cas; f™ 6x6, 4x °4; br 15x13; per 65x10; caps 1°6 x *5™™, Elata saturate viridis late czespitosa, Caules erecti tenues 14-6 poll. apice circinati incrassati, laxe bipinnati, pinnis breviusculis pinnu- lisque (paucis, 1-4) pendulis. Folia parvula, incurvo-concava, caulina dissita, ramea subimbricata, sub- _quadrato-ovata ultra medium 4-fida, laciniis subulato-acuminatis repandis, sinubus obtusis, basi utrinque subhastatim dilatata, anticeque (raro etiam postice) spinis 1-8, seepe hamatis, aucta, vel interdum quasi 5-6-fida; cellule parvee subincrassate pellucide fere vacuze. Foliola foliis vix minora quadrata, magis profunde 4-fida, basi utrinque 1-3-spinosa. ; Flores dioici: 2 postici; bracteze 3-4-jugse, concave appresse, intime foliis 3-plo majores ovato-orbiculares apice obsolete 4-spinz, czetero margine hic illic denticulate vel subspinulose. Perianthia maxima, } pollicis longa, f. caulina 12plo excedentia, ovato- subulata incurva, superne profunde 3-sulea obtuse 3-gona, ore sub- integerrima, substantia valida, e cellularum stratis 4 conflata, apicem versus ipsaque basi tenuiora solum 1-2 cell. crassa. L. truncatella Nees, L. et G. Sp. Hep. no. 23, t. 8, Cap. Bone Spei indigena, quoad folia basi antica subspinosa nostre aflinis, minus regu- lariter ramosa est; foliis imbricatis ad 4-4 solum fissis, laciniis latioribus; foliolis duplo minoribus solum ad 4 usque fissis. 7. LEPIDOZIA TENUICULA, Spruce. Hab. In M. Tunguragua, ad arborum truncos. Hose ees f "4X30, “aX “2m, Ceespitosa suberecta flaccida pallide viridis. Caules 3-pollicares tenues laxe pinnati et subbipinnati, ramis brevibus decurvulis distichis vel subsecundis. Folia caulina dissita, oblique ovata, margine antico posticum duplo excedente basique semicordato-dilatato spina longa armato vel bi- spinuloso, ultra dimidium 4-fida, laciniis subulatis acuminatis acutis basi 3 (raro 4) cellulas latis; cellule parvule pellucide subquadrate v. parum oblongatze, pariete subincrassato, Foliola foliis minora incurvula 4-fida, laciniis lineari-subulatis obtusis, utraque basi obtuse 1—2-dentata. Folia axillaria ovata acuminata breviter bifida, segmentis subulatis conniventibus, basi utrinque bispinosa. Folia foliolaque ramea minora magis profunde fissa, laciniis solum tribus. Huic affinis est L. chordulifera Tayl., longe tamen tenuior. 364 LEPIDOZIA. 8, LEPIDOZIA SERPENS, Spruce. Hab. In M. Tunguragua supra Porellam arboream repens: pl. ¢ sola observata. F -35 longa; f 15; c 2-3,™™. Pusilla pallida sparsa. Caules $-pollicares tenues vage laxe subbipin- nati, prostrati, radicelliferi, flagellis nullis. Folia dissita patenti-incurva incuba (fere transversa) cuneata, ad ? usque 3-fida (raro 2-4-fida), pagina basali 4c.alta, segmentis subulatis acuminatis, basi 3—-4c. latis, antico longiore. Foliola duplo breviora lato-cuneata, ultra medium 3-4-fida, segmentis subrectis basi 2c. latis. Amenta ¢ cauligena, oblonga, virescentia; bracteze arcte imbricate 5-jugze, foliis fere majores, suborbiculate, breviter acute bidentate, con- cavissime, monandre. L. capillaris (Sw.) L. et G. Spec. Hep. 69, t. 11, f 1, differt foliis majoribus, laciniis obtusiusculis basi solum 2 (raro 3) cellulas latis; foliolis folia fere squantibus; bracteis ¢ subcomplicatis, 2-3-fidis, grosse subdenticulatis. L. fusifera S. folia habet imbricata, lacintis sublinearibus haud acuminatis; foliola majora ad basin fere usque 3-partita; cellulas minores. 9, LEPIDOZIA FUSIFERA, Spruce. Hab. in declivibus umbrosis montium Campana et Guayrapurina, alt. 1000", in Andibus Peruvianis. F +25 x °125; ¢ 35; f@ br. inter. 13 x “753 per 2°4 x “7mm, Pusilla depresso-ceespitosa viridis olivaceave. Caules pollicares pro- cumbentes, basi subaphylli subdivisi radicelliferique, deinde laxe pinnati et bipinnati, intricati. Flagella postica subaphylla radi- cantia in medio caule raro obvia. Folia transversa, imbricata, late patula tamen, oblonga concava 3-4- partita (limbo basali integro 2-8 cellulas alto); laciniis lineari- subulatis, 7-10 cell. longis, 2 cell. (apice 1 solam cellulam) latis, antici tamen ceteris angustiore divergenti-erectaé; cellule minutule quadrate, pariete validiusculo, intus ambitu opace. Foliola subminora, angustiora, ad basin fere usque 3-(raro 2-)partita ; laciniis capillaceis erectis appressis, cellulis 8 vel paucioribus uni- seriatis constantibus. Flores dioici: 9 ramulo proprio postico constantes. Bractez sub 3-juge, magne, intime foliis 5plo longiores, ovatee concave appressee, apice recurvulo subacuminato brevissime 2-3-fide, margine subdenticulatee, Perianthia bracteas duplo superantia, e cellulis rectangulari-oblongis unistratis conflata, superne obtuse trigona et tri-vel sexsulca, ore sensim constricto plurilaciniata, laciniis subulato-attenuatis flexuosis. Amenta ¢ ramulo postico incurvo constantia; bractese 5-10-juge, foliis paulo minores, conferte, assurgenti-secundse, ovate: concavee bilobae— rarius apice ineequaliter 4-dentatee—basi antica bispinose, antheridia magna solitaria in gremio foventes. Bracteole parvee decidue. L. capillaris Sw., foliis minus profunde (solum ad 4-#) fissis, laciniis strictionibus; foliolis 3-vel seepe 4-partitis, laciniis lanceolato-subulatis ; bracteis apice laciniato-ciliatis ; perianthiis minus longe ciliatis, diversa.— L. gronatensis, Gottsche in Hep. Novogranat. 45, subaflinis, differt LEPIDOZIA. 365 florescentia monoica; ramificatione vaga ; foliis solum 2-3-partitis, la- ciniis lanceolatis; ete. Obs. In consequence of the exactly transversal insertion of the leaves, and their concavity, they are in reality neither succubous nor incubous. Each leaf lies partly over and partly under the next upper leaf, when the stem or branch is laid flat; but stands exactly underneath it (like one cup under another) when the stem or branch is set upright. 10. LEPIDOZIA AMAZONICA, Spruce. Hab. in solo rubro subquarzoso, sub fruticum umbra, ad Mandos, fl. Negro ostiis proxima: rara et solum sterilis. HAD: 6 as JF 08™™. Minuta badia prostrata intricata. Caules }-pollicares pauciramei—raro subpinnati, basi rhizomatosi flexuosi divisi subaphylli interdum postice flagelliferi; rami laterales basi subnudi. Folia transversa confertiuscula, late patentia tamen, apice incurvula, cune- ata 3-partita; cruribus subulatis obtusis, 2 lateralibus majoribus dimidio infero 2 cellulas, supero 1 cellulam latis, crure antico breviore et angustiore cauli parallelo et subappresso; cellule minutule rectangulares vel subquadratz tuberculis asperate. Limbus folii basalis ad crura longiora 2 cellulas, antice tamen 1 cellulam solam, latus; crura lateralia 6—7cell. longa. Foliola duplo breviora caule velata, bipartita, cruribus 1 cell. latis, altero duplo fere breviore. Rhizina vix ulla nisi pauca ad caulis basin rhizomatosam. Obs. The underleaves are contiguous at the base, on the side of the longer segment, to the adjacent leaf, but distant from the leaf on the opposite side of the stem. L. capillaris Sw. has the leaves three times as long, less deeply cloven, and (like the underleaves) often 4-cleft; besides, like nearly all other tropical Lepidoziew, it is a mountain plant. L. amazonica is the only species known to me which descends very nearly to the sea-level within the tropics. It is scarcely necessary to add that our L. setacea seems abundantly distinct in the pinnate or bipinnate stems, the less deeply cloven leaves (only to within 3-5 cells of the base), the segments wider upwards, and the symmetrical 3-4-cleft underleaves. 11. LEPIDOZ!A CHETOPHYLLA, Spruce. Telaranea chetophylla Spruce Mst noy. gen. Hab. in terra nuda humida sylvarum, rarius in truncis putridis, secus fluvios Negro, Casiquiari, Aripecuré, etc.; in Andibus Peruvianis rarior est, et in montibus Campana, etc. vix supra 1500™ alt. ascendit ; in m. Tunguragua et Chimborazo Andium Quitensium alt. 2500™ attingit. F-25—4™™ longa; cz, ; f'*1-2; br. int. 1:0; per 15 x ‘5; caps ‘5 x °3™™, Pusilla, e viridi albescens cinereave, pellucida, prostrata intricata. Caules repentes, pollicares, sat validi, compressuli, strato corticali cellulis 8-10-serlatis magnis oblongis convexulis pellucidis, nucleo cellulis pormseriatis multo angustioribus subopacis (7 in caulis diametro ongiore, 4-5 in breviore) constante, vage, vel in cespitis ambitu pinnatim ramosi; rami breves laterales, rarissime adveniunt etiam 366 LEPIDOZIA. postici, simplices vel interdum subdivisi, foliosi [flagellis aphyllis terraqne radicantibus nullis]. Folia transversalia, dissita, ad basin usque 3-partita, ramea subcontigua vel etiam conferta 2-3-partita; crura infima basi ad cellularum basalium 4 altitudinem solum connata, setacea, recta divergentiave, cellulis uniseriatis (vel ipsa basi biseriatis) constantia; cellule majuscule cylindrice, vix duplo longiores quam lata, subleevissimee, chlorophyllo parcissimo demum ad cellule extremitates coacervato. F. axillaria (que sc. rami axillam obtendunt) preelonga, semper fere unicrura, subulato-setacea. Foliola latitudine caulis, dimidia longitudine folorum, vel minora, 2-(raro 3-) partita, cruribus erecto-incurvis cellulis tribus con- stantibus setaceis, basi radicellifera. Flores monoici:.? ramo brevi postico constantes, innovatione nulla suffulti. Bracteze 3-5-seriate, tristichee; intime foliis triplo majores, 3-5-partite ; crura basi in limbum 2 vel 3 cellulas altum coalita, deinde subulata, inferne 2 vel 3 cellulas, superne 1 solam cellulam lata, vel laciniato-ciliata, vel bi-trifurca, vel solum basi unidentata. Perianthia magna, foliis 4-6-plo longiora, fusiformi-subulata, inferne subteretia, supra medium obtuse trigona et triplicata, ore constricto longiciliata, ciliis 12-18. Calyptra duplo brevior, tenuis ovalis, basi et paulo altius pistillidiis sterilibus (sub 9) obsita, demum bilabiatim rupta. Capsula magna subcylindrico-oblonga nigro-purpurea, ab ipsa basi 4-valvis. Elateres longiusculi bispiri utrinque attenuati. Sporz minute leves diametro elaterum latitudinem zquantes. Amenta ¢ ramum lateralem totum, vel sepius ejus apicem solum tenentia; bracteee sub 5-jugee, monandre, assurgenti-conniventes, ceeterum foliis vix diverse. Obs. Folia insertione revera transversa, nihilominus quoad imbri- cationem potius “succuba” quam “incuba” dicenda. Lepidozia nematodes (Gottsch. sub Jungermania, in Wright’s ‘Hepaticze Cubenses ’—haud L. nemoides Tayl., L. et Gottsch. Spec. Hep. tab 10)— nostre valde aflinis, diversa videtur flacciditate ; caule tereti 4-5-cell. lato; foliolis minutis solum 2c. longis; perianthio majore, superne dilatato, ore 24-ciliato. Species istee ad Arachniopsin nostram accedunt, quoad habitum filamen- tosum, &c., fereque pro genere proprio (Telaranea nob. herb.) habende. Differt Arachniopsis ramis omnibus posticis, foliorum cruribus inter se omnino liberis—interdum solitariis—foliolis nullis; itaque ad Cephaloztam proxime accedit, dum Telaranca a Lepidozia wegrius separanda. XII. BAZZANIA, Gray. Nat. Arr. Brit. pl. (1821). Pleuroschisma Dum. Recueil. (1835). Mastigolryum Nees. Syn. Hep. (1845). Caulis validus subteres, a fronte compressulus, iteratim furcatus (dichotomus), angulo fureze—in una et eadem specie sat constante— inter 30° et 100° ludente, seepe recto, vel plus minus acuto, raro obtuso (in B. divaricata, e. g.). Rami postici vel brevissimi et floriferi, vel seepe prelongi microphylli et radicellosi. Cellule BAZZANIA. 367 caulis pluristrate, corticales internis conformes, magis opace, iis foliorum inferioribus sat similes nisi subminores. Folia incuba, alterna, in paucis opposita, basi plus minus imbricata, apice pro m. dissita, decurva, interdum (in sicco precipue) secunda, semper obliqua, plerumque falcata, subduplo longiora quam lata, a basi semicordato-ovata sensim angustata, in dimidio supero subligulata, apice plano semper fere truncato-tridentata—casu rariore 4-dentata vel subintegra—in perpaucis zqualiter bidentata, vel (in aliis speciebus) inzequaliter biloba; margine in plerisque integerrimo, in paucis basi postica spinoso dentatove. Axis folii margini postico propior, vitta cellularum majorum elongatarum, in seriebus 6-12-dispositarum, notata; cetere cellule parve subzquilatere guttulate, plerumque sublevissime, pariete ad angulos insigniter incrassato. oliuwm dichotomiale anticum, ceteris longius, ovato- subulatum integrum. Joliola ubique presentia, foliis subduplo— raro 3-4-plo—breviora, caule sat latiora, appressa, plerumque sub- rotundo-quadrata, raro longiora, apice truncato persepe 4-crenata- incisulave, raro subintegerrima, margine integerrima vel subdentata ; in aliis speciebus basi cordata, auriculis interdum spinis armatis. Flagella subzequifoliata ; folia minuta tristicha ovata concava, apice bidentula, rarius solum apiculata tridentulave, juxta basin radicellas longas pallidas proferentia. JJores dioici, utriusque sexus cladogeni, ramulis posticis constantes. Bractee Q 3-5-juge, intime majores (foliis autem seepe subbreviores) arcte imbricatz concave, orbiculatie ovateve, rarius ovato-lanceolate, apice saltem lobulate, laciniatze, ciliateeve, subscariose, cellulis majusculis elongatis 4-6-gonis sub- vacuis constantes. Pistillidia 10-16. Perianthia ovato-subulata fusiformiave, 3—4-plo longiora quam lata preter ad basin subcarnosam leptodermia, primum ab ipsa basi tricarinata, carinis latis, sulea exaratis, exinde quasi 6-plicata, posterius—fructu maturato repleta, carinisque fere obliteratis—interdum subteretia, solum apice con- stricto trigona; ore in statu perfectiore ciliis longis, 12-15, peni- cellata. Calyptra perianthio duplo brevior pyriformis vel cylindrico- oblonga, basi quasi-stipitata 3-strata, pistillidiis sterilibus obsita, superne 2-strata. Capsula calyptra duplo brevior, oblonga, sub- cylindrica, sub 5-strata; cellule stratorum 4 exteriorum columnis parietalibus fulcite, extimi duplo majores tesselate, intimi (quinti) fibris semiannularibus notate. Hlateres tenues subobtusi, sporis minutis duplo angustiores. Amenta 3 folio postico axillaria, brevia incurva; bractee 5-raro ad 10-juge, ovate concave vel subcom- 368 BAZZANIA. plicato-convolutze, apice truncate, bifidee, bispinoseeve, raro integre ; antheridia bina longistipitata, raro solitaria. Hab. Loca umbrosa, in sylvis montium preecipue, ad saxa, arborum truncos et ramos, necnon in truncis prostratis et putrescentibus, rarius in ipsa terra, plagas preelatas sistens, seepe super alias hepaticas. muscosque flagellis suis validis radicantibus reptans. Distr. Per orbem terrarum ; in zona temperata boreali speciebus solum 2 (ut videtur) constans; inter tropicos et in zona temperata australi, in Australasia pre aliis, formes numerosissimee—forsan ad species sane haud permultas referende—invente sunt. Ipse in sylvis Andium et flum, Amazonum species circiter 19 legi. Obs. Folia nunquam (ad Micropterygii instar) complicata, margine postico autem (nisi ipsa basi, ubi recurvula) leniter incurvula. In speciebus foliis apice ineequaliter bifidulis donatis (sc. B. anisostoma, inequilatera, &c.) heee incurvatio tali modo augetur ut folia canaliculata evadunt, itaque ad Micropterygium sensim accedunt. The species of this genus are a standing puzzle to hepaticologists. They are all so alike in habit and in their more obvious characters that a casual observer would unhesitatingly refer them to the same genus; but when we try to define the species, we find it difficult to assign them positive limits. Out of the wealth of material I amassed in the forests of the Amazon and Andes I could easily frame double the number of “species” here recorded. The forms I have grouped under the name Bazzania bidens, for instance, might seem to other observers equivalent to 3 or 4 distinct species; but when I find West Indian forms differing slightly froin all these, but (like them) showing no character that I could account specific, I have concluded to let them stand as varieties of a single species. —Several Oriental species with opposite leaves are known, but only a single American, B. Peruviana (Nees.), which, singularly enough, I never gathered, nor have I been able to see a genuine specimen of it. § 1. Folia apice bidentata. 1. B. bidens (L. et L.) Subpusilla flavida rufulave. Folia parvula laxiuscula semiovato-lanceolata lineariave, dentibus apicis brevius- culis acutis. F!* 4 plo breviora subquadrata, apice 4-crenata-denti- culatave, interdum subintegra. Per. tenuia, tota longitudine trigona,, ore ciliolata—Var. vittata 8S. Folia breviora semiovata, cellulis mediis discoloribus distincte vittata—Var.? dissodonta 8. F. semi- ovato-ligulata, dentibus longis acuminatis, F!* solum duplo breviora, apice grosse 4-dentata, vel 4-fida, margine interdum utrinque 1-2- spina. [Potius species propria.|—Var. heterodonta 8. F. tridentata cum aliis normaliter bidentatis admixta. F"™ sursum crescentia, superiora late cuneato-quadrata longidentata. § 2. Folia apice tridentata, raro etiam in eadem stirpe 2-vel 4-dentata, rarissime (¢ dentibus lateralibus obsoletis) apice subintegra. A. Foliola parva, foliis 2-5plo minora, basi haud (vel via) cordata. EF. basi vntegerrima. to 8. 10. 10 BAZZANIA. 369 B. phyllobola 8. Pusilla tenuis parce divergenti-dichotoma, e foliis caducis pro p. nuda. F. parvula distantia ligulata, apice _ tri- bidentata, d. acutis; ¢. subeequimagne. FF! foliis 4plo breviora, apice subtridenticulata. Br. interiores foliis longe majores, apice profunde 3-4-laciniate. Per. paulo emersa, ovato-fusiforma, a basi ipsa fere trigona, ore 6-plicato breviciliato. Br. ¢ monandre. B. decidua 8. Mediocris tenuis parce et acute dichotoma. F. dis- tantia caduca, semiovato-trapezoidea, apice argute tridentata; c. mediane lateralibus paulo majores. F!* duplo minora auadrato- oblonga, apice crenulata. Br. intime foliis breviores, apice 2-3- ciliolatze. B. diversicuspis 8S. Mediocris parce dichotoma. F. majuscula subim- bricata subfalcata semiovato-lingulata subvittata, apice vel acuta (unidentata) vel subtridentata. F'* 3-4plo breviora quadrata, retusa vel obsolete crenulata. B. brasiliensis (N.). Mediocris, flavida vel virescens. F. subimbricata subfaleata oblique ovato-ligulata evittata, apice profunde 3-dentata, d. subacuminatis. F triplo minora, quadrata, apice truncato mutica vel 4-6-denticulata. Br. intimz apice 2-3-(media 4-) laciniatz. Per. ovato-subulata trigona. B. aurescens S. Mediocris viridi-aurea. F. subcontigua oblique obeuneato-ligulata subfaleata evittata, apice trifida, segmentis angustis cuspidulatis. EF" 2iplo breviora cuneata, apice sub 4- crenata, utroque margine 2-3-crenata. B. leptostipa S. Majuscula fulva acute dichotoma. F. (decidua) magna contigua subfalcata, apice 3-dentata, d. brevibus peracutis, basi antica $ caulem imbricantia. F'* vix triplo minora, appressa tenuissima quadrato-oblonga, apice vix crenulata. Br. foliis subz- quilonge, intime ovato-lanceolatz, apice trilaciniate. Per. 5plo longiora quam lata, anguste ovato-fusiformia, trigona, apice constricto sexfida. : B. viridissima 8. _Robusta iteratim divaricato-dichotoma. F. magna imbricata falcata longe semicordato-ovato-ligulata, apice argute 3-4- dentata, d. triangularibus peracutis, medio submajore, basi antica caulem transeuntia. F™ triplo fere minora, rotundo-quadrata, apice irregulariter 3-4-crenata, basi vix subcordata, vel semi- cordata. B. teretiuscula (Ll. et G.) Mediocris stratificata fulva anguste dichotoma (angulo 20°-40°) ; ramis apice hamatis, in sicco e foliis devolutis teretiusculis. F. majuscula subimbricata subfalcata semi- cordato-ovato-lanceolata, apice breviter 2-3-dentata, raro 1-dentata, basi caulem obtegentia. F'* dimidio folio subminora, quadrato- oblonga, apice sub 4-crenata. B. planiuscula (G. et L.) Mediocris fuscidula subdichotoma, F. sat magna subimbricata divergentia subfaleata semicordato-ligulata, apice argute trifida, d. anguste triangularibus peracutis, interdum denticulo armatis. F'* 3 folio subminora, quadrato-oblonga, apice truncato 4-crenata. B. Chimborazensis 8. Elata flavo-viridis laxe stratificata, angulo vix recto dichotoma. F. magna subimbricata falcata, semicordato-ovato- oblonga, margine supero subdenticulata, apice serrato-3-dentata, d. breviusculis apiculatis ; c. mediz pluriseriatz pallidee, ceeteris duplo majores. F* plus duplo breviora quadrato-rotunda, basi breviter subcordata, toto margine varie crenata erosulaque. 370 BAZZANIA, B. Foliola magna, foliis solum (vel viz) duplo breviora, basi biauriculato- cordata. b. Auricule foliolorum prom. termes. F. basi plerumque inermia, in paucis subdentata. 12. B. flavicans 8. Mediocris tenera parce dichotoma. F. magna sub- imbricata ovato-ligulata, apice trifidula, d. triangularibus, supero longiore, basi antica caulem subtranseuntia, postica crispula; c. medi lateralibus sensim duplo et ultra majores, trigonis maximis. F® duplo breviora, apice obsolete 3-4-crenata, basi breviter cordata. 13. B. Vincentina (L. et L.) Elata fulva vel olivaceo-viridis pluries dichotoma stratificata. F. magna parum falcata semicordato-ovato- ligulata, apice tridentata, d. brevibus subapiculatis, medio dente multo majore ; basi antica caulem transeuntia, postica crispula, axin versus cellulis elongatis vittata. F'* duplo breviora suborbiculata, toto margine late crenata, auriculis baseos majusculis oblongis. Br. int. foliis sat breviores. Per. plus minus emersa fusiformia, apice ciliata.—Var. macrophylla §. foliis prelongis (8), per. maximis (4x 1™™).—Var. submutica 8. foliis apice vel triangularibus vel trun- catis et obsolete dentatis. 14. B. robusta 8. Elata rigida dense stratificata iteratim dichotoma erebre flagellifera. F. magna confertissima, recentia et sicca decurvo- secunda, falcata, oblique cordato-lingulata, apice angusto 3-(4-) dentata, sinubus rotundatis, dentibus acutissimis subinde denticu- latis ; basi antica caulem obtegentia, postica crispula ét eroso-denti- culata. F* triplo fere breviora, oblato-orbiculata, toto margine crenulato-repanda, auriculis subrotundis crispulis. Per. semiemersa ovato-subulata ore longiciliata. 15. B. heteroclada S. Elata albido-viridis stratificata, caule tenuiusculo peranguste dichotomo, stolones posticos foliosos et ramulosos— rarius flagellares—edens. IF. magna conferta secunda valde falcata, e basi ovali triangulari-ligulata, basi antica caulem obtegentia, postica dilatata 2-4-spina denticulatave, apice grosse 3-dentata, d. acutis. F' duplo minora quadrato-oblonga, apice breviter 4-fida, auriculis baseos planis decurrentibus. 16. B. humifusa 8. Mediocris rufula reptans subacute dichotoma. F. majuscula subimbricata longe semicordato-triangularia apice argute 3-dentata, d. lato-subulatis subapiculatis, basi antica caulem obte- gentia, medio lativittata, trigonis cellularum maximis. F! duplo minora subquadrata, apice 4-crenata, auriculis baseos rotundo- oblongis faleato-conniventibus. b,. Awricule foliolorum spinose. Folia basi spinis armata. 17. B. ancistrodes S. Mediocris rufula dense stratificata iteratim dicho- toma. F. imbricata, valde oblique ovato-ligulata, falcata, apice breviter 3-dentata, dentibus acutis (altero ssepe obsoleto), basi antica caulem transeuntia, postica longe decurrente 2-3-spina, F* duplo breviora rectangulari-oblonga, apice subcrenulata, auriculis baseos magnis falcato-conniventibus paucispinis. 18. B. spinigera S. Unumilis pallida fragilis subdichotoma. F. majus- cula arcte imbricata cordato-ovato-ligulata, valde gibboso-falcata et ineequilatera, apice 3-4-dentata, d. patulis peracutis, basi antica caulem vix obtegentia, postica dilatata subspinosa ciliataque. F® 3 folio — BAZZANIA, Big! majora ovato-oblonga, apice rotundato-truncato varie dentata, basi protunde cordata spinosa. 19. B. acanthostipa S. Elata flavida semel bisve fureata. F. subimbri- cata tenera distiche patula subfalcata, valde oblique semicordato- ovato-ligulata, basi antica caulem transeuntia, postica ampliata 4-spina. F!* 25plo breviora, cordato-quadrata 4-crenata, utroque margine 1-2-dentata, auriculis baseos conniventibus crispis 2—4-- spinis. 1, BAzZANIA BIDENS Gottsch. et Lindenb. Mastigobryum bidens, G. et L. Spec. Hepat. 87, t. 15. Hab. Panuré fluvii Uaupés; Mandos et San Carlos fluvii Negro; Para flum. Amazonum ; etiam (var. vittata) in sylvis occidentalibus montis Chimborazo. In truncis vetustis cariosisve et in terra arenosa umbrosa viget. E Guiana Gallica habuerunt Montagne et Linden- berg. F'-85 x °38 (apice x 15); csy-73 f ‘2 x °25, 18 x 18; br. intime ie 0o; per 2:5 xX -Go™™, Tenuis, flavida rufulave, in plagas latas tenues prostrata. Caules 2-3- pollicares flexuosi, crebre flagelliferi, parum dichotomi, angulo dichotomiali subdivergente. Folia parvula alterna subcontigua vel subimbricata, subdeflexa’ parum falcata, semiovato-lanceolata-lineariave, repanda, apice angustiusculo subacute bidentata, dentibus peracutis suberectis, margine postico fere recto, antico basi rotundato caulem vero haud obtegente; cellule pellucide (trigonis magnis) medize paulo majores vix tamen vittam efformantes. Foliola distantia, foliis plus 4plo breviora, caule haud latiora, subqua- drata, apice plus minus 4-crenata-denticulatave, dentibus haud raro obsoletis. Flores dioici: Bracteze ? paleaceze appresste 3-4-jugee, concave, laxe areolate; extime minute subrotunde, laterales bi-(media 3-) dentate ; interiores majores ovate apice extimis conformes; intimze f.caulinis longiores ovato-oblongee, laterales apice bilaciniatee, media (major!) trilaciniata, lacinulis lateralibus seepe adjectis, czetero margine subdenticulato. Perianthia foliis triplo longiora, anguste ovato-fusiformia unistrata, ab ipsa basi trigona, apice breviter lacinulato-ciliata. Calyptra solum basi tubulari subcarnosa, cxeterum tenuis. Capsula anguste oblonga. Andreecia spiculas posticas incurvas pallidas, solitarias binasve, sistentes; bractez sub 5-juge concavee, apice bifide, seementis bidentellis vel iterum bifidis. Antheridia solitaria, rarius bina, Bracteole per- anguste oblongze truncate, superne subcrenulate. Var. vittata, foliis brevibus semiovatis, distincte vittatis, vitta cellulis majoribus flavidis 5-6-seriatis constante, paulo ante apicem evan- escente, foliolis parvis appressis obsolete dentatis. In M. Chim- borazo, cum B. Chimborazenst mixta. Ad B. divaricatam N. (Sp. Hep. Mastig. t. 5) accedit. Var. dissodonta S. (Bazzania dissodonta Spruce in Mst.). Folia subfaleata semiovato-ligulata longius bidentata, dentibus triangu- laribus acuminato-acutis. Foliola duplo majora quam in B. bidente typico, apice grosse 4-dentata, quasi bis bifidula, interdum ad medium fere usque 4-fida (raro solum 3-dentata), dentibus sub- BY ie BAZZANIA. acuminatis, margine utrinque 1-2-spina nudave. Folia sepissime decurvo-secunda rigidula persistentia, quando autem subexplanata inveniuntur tune valde caduca. In M. Campana Andium Peruvi- anorum. (F!*-4 x °35™m), Var. heterodonta S. A priori quoad folia—nisi rarissime tridentata—vix differt ; foliola tamen caulis apicem versus sensim crescunt, superiora late cuneato-quadrata longidentata. In M. Guayrapurina Andium Peruvianorum. Obs, Figura Mastigobryi bidentis, in Spec. Hep. t. xv, folia monstrat paulo longiora quam in nostra (typica) sine aliis differentiis. Forma longifolia quoque in insula Guadalupa legit. cl. Husnot. .2. BAZZANIA PHYLLOBOLA, Spruce. Hab. in M. Guayrapurina Andium Peruvize, ad arborum radices. F°9 x °3,°9 x °35; 3,7 ; f@ 2 x 2; br 15 x “75; per 2:0 x 6mm, Pusilla laxe stratificata fuscidula. Caules 2-3-pollicares intricati tenues flexuosi parce dichotomi (angulo lato) flagelliferi, e foliis caducis- simis seepe fere denudati. Folia distantia late patentia parum decurvula suboblique ligulata, apice truncato (interdum sublatiore quam basis !) tri-bidentata, dentibus subeequalibus acutis, sinubus subacutis ; cellule parve subeequimagne quadrato-hexagone, pariete parum incrassato. Foliola plus 4plo breviora, distantia, cauli equilata appressa, rotundo- quadrata, apice subtridenticulata. Flores dioici: 2 postici. Bracteze paleacece tenuissimz arcte appresse, intime folvis longe majores ovate acuminate complicato-concave, apice in lacinias, 3-4 preelongas erectas dissolute, margine subdenticulate. Perianthia emersa tenuia, foliis caulinis plus duplo longiora ovato- fusiformia, a basi fere obtuse trigona, ore constricto 6-plicato brevi- ciliata, demum plurilaciniata. Calyptra carnosa, paulo supra basin 3 cell. crassa. Amenta ¢ foliis lateralibus sublongiora julaceo-trigona incurva; bractez prelate ovate convoluto-concave, apice’ anguste truncato 4~— (3-) dentate, subinde bis bifidule, antheridia solitaria magna foventes ; bracteolze minores trifidee vacuee. Forma foliorum, apice (nec basi) magis lata, et foliolis duplo minoribus a B. dissodonta facile distincta species. 3. BAZZANIA DECIDUA, Spruce. Hab. in monte Tunguragua, ad arborum truncos. F1:0 x ‘6; c. media 3, laterales 72; f'* °5 x °4; br. int, °75 x °35™™, Czespites magni rufo-badii, apice virescentes, aules 3-4-pollicares tenues parce dichotomi, angulo furcarum acuto, sub 45°, Folia deciduissima distantia, decurvula dimidiato-ovato-trapezoidea, haud falcata, basi antica subsemicordata caulem haud obtegentia, apice oblique truncato acute tridentata, dentibus acutis ineequalibus, antico seepius majore; cellule subconformes (medianz perpaulo majores) subzequilaterse, subpellucide, ad angulos preecipue incrassate, Foliola dissita, quadrato-oblonga, foliis duplo minora, apice obscure 3-4-crenulata vel solum repando-retusa, Flores dioici: 9 ovato-fusiformes, Bracteee sub 9, arcte appressee, BAZZANIA. 373 intime foliis } breviores, ovato-lanceolate concave, apice 2—3-cilio- late vel bifidule; cellule majuscule rectangulari-4—5-v. 6-gonie, vacuee. Ceetera haud visa, Cum hac congruit B. phyllobola S.quoad folia decidua, differt autem foliis duplo angustioribus, basi haud cordatis ; foliolis plus duplo minoribus ; bracteis duplo majoribus. B. tridens Nees. distincta est foliis subimbricatis brevidentatis et foliolis minutis. 4. BAZZANIA DIVERSICUSPIS, Spruce. Hab. Tauat, prope Para, supra filices repens. F16x°7, 13x °65; ¢ ss; f% “4x °4, “4x 35mm, Viridis, prostrata, laxa; caules 2-3-pollicares nigrescentes parce dicho- tomi, flagelliferi. Folia subdecidua subimbricata decurva subfaleata oblique semiovato- lingulata apice abrupte acuta v. subtridenticulata, dentibus lateralibus subobsoletis, raro rotundata, basi antica vix semicordata caulem sub- obtegentia, margine postico concavo; cellule subincrassatse, sub- pellucidze (ambitu interno subopac), medianz a basi ad dimidium folium duplo majores subelongatze vittam indistinctam efformantes. Foliola 3-4-plo breviora, quadrata, vel quadrato-oblonga, retusa v. obsolete 3—4-crenulata, basi hine cum folii basi contigua (vix connata). B. tenera L. et G., quoad foliorum apicem diversiformem nostrze similis, certe diversa erit foliis multo minoribus brevioribusque. Cf. Spec. Hep. Way ts 1: 5. BAZZANIA BRASILIENSIS (Nees). Mastigobrywm brasiliense G. et Lindenb. Sp. Hep. 85 t. 15. Hab. in Brasilia media et australi (Martius). In sylva Amazonica haud infrequens, secus fluvios Negro et Uaupés pracipue (R.s. 1849- 1855) ; perianthia autem rarissima. F 16x °6 (x 3-35 apice); c Js; f* 5 x °4, 5K 45mm, Mediocris, flavida vel virescens, strato tenui procumbens. Caules 2-3-pollicares dichotomi ; flagella creberrima, foliis minutis ovatis ovato-lanceolatisve integris apiceve 2—3-dentatis tristichis distantibus vestita, apice subaphyllo radicantia. Raro advenit ramus posticus furcatus normaliter foliosus. Folia subimbricata decurvula oblique ovato-ligulata subfalcata, utroque margine (basi anticd rotundaté dimidium caulem obtegente excepta) fere recta, repandula, evittata, apice oblique truncato profunde 3-(raro 4-) dentata, dentibus acutis subacuminatis, sinubus acutis obtusisve ; cellulee mediocres pellucidee incrassatze, medianze perpaulo sensimque majores subelongate. Foliola triplo minora, contigua vel subimbricata, quadrata vel oblongo- quadrata, apice truncato vel mutica, vel 4-crenata-denticulatave, vel 6-denticulata, denticulis alternis minoribus. Flores dioici: @ ramulo brevi postico sistentes. Bractezee 4—5-jugse appressee ovatee 2-3-fidee, laciniis subulatis, subciliolatee; bracteola intima bis bifida vel plurilaciniata, laciniis ciliiformibus. Perianthium emersum ovato-subulatum, subfusiforme, trigonum (apice in specimine jam disruptum). Calyptra inferne 2 v. 3 cellulas crassa, apice tenuis. TRANS. BOT. SOC. EDIN. VOL. XV. hese 374 BAZZANIA. 6. BAZZANIA AURESCENS Spruce. Hab. in declivibus saxosis umbrosis montis Guayrapurina Andium Peruvianorum. F'16 x °65 (apice x °3 -'35); ¢ ah-ds 3 f% 65 x ‘65™™, Mediocris, viridi-aurea, ceespitosa-stratificata. Caules tenues rufi flexuosi parum et subacute dichotomi. Folia contigua vel basi sola imbricatula, angulo fere recto divergentia, oblique obcuneato-ligulata, paululum falcata et decurvula, apice truncato trifida, dentibus rectis anguste triangularibus cuspidulatis, raro subdenticulatis, medio seepe submajore, basi antica rotundata (haud semicordata) } caulem velantia, margine repandula, basi postica vix subanrpliata, medio evittata; cellule concolores subpellucide valide incrassate, medic lateralibus sensim paulo majores, omnes euttulate et quasi-moniliate. Foliola dissita foliis 24plo breviora, cuneata vel late euneato-quadrata— subinde subrotunda—apice truncato sub 4-crenata, crenulis rotundatis seepeque apiculatis, margine utrinque grosse 2-3-crenata, basi excisa ‘aro hine deorsum in dentem producta. A Bb. brasiliensi, cui proxima, distat foliis sparsioribus, dentibus longi- oribus cuspidulatis; foliolis submajoribus, utroque latere grosse crenatis ; erenulis apicis magnis plerumque apiculatis. LB. humifusa §. foliis eadem longitudine, apice in dentes 3 longos fissis, B. aurescente congruit; differt tamen foliis basi amploribus, antice caulem obtegentibus, vittatis; foliolis submajoribus basi cordato-biauriculatis, margine laterali haud crenatis. , Obs. The trigones at the angles of the cells are sometimes almost as large as the cells themselves; and the lumen (or cavity) of each cell being subcontiguous to that of the cell at each end of it, but widely separated from the lumen of the collateral cells, causes the cells to resemble strings of minute oblong pearls, alternating with rows of smaller, angular and yellowish beads (the trigones). 7. BAZZANIA LEPTOSTIPA Spruce. ITab. In M. Chimborazo, in eodem cespite ae B. Chimborazensis 8. F 2:0 x 1-0, ¢ dy, ok, ds, f% 175 x 65, br 2°0 x 1:0 per 4:0 x 0°8™™, Fulva, laxe stratificata, pendula; caules 2-3-pollicares badii acute dichotomi flagelliferi, seepe ob folia decidua ex parte denudatt. Yolia decidua, contigua, perpaulo imbricata, subdivergentia, patula v. decurvo-subsecunda, subfalcata, oblique ovato-ligulata, apice truncato 3-dentata, dentibus brevibus peracutis v. apiculatis, sinubus pleramque obtusis, basi anticé vix semicordata } caulem imbricantia, postica vix dilatata deewrrentia; cellule subpellucidee incrassatee, interiores pluriseriata sensim multo majores, concolores tamen nec vittam discolorem efformantes. Foliola subdissita appressa tenuissima, foliis vix 3plo breviora; quadrato- oblonga apice truncato vix obscure crenulata basi utrinque brevissime decurrentia, cellulis tenuibus oblongis reticulata. Flores dioici: 9 postici, bracteae suberectse concave, intima foliis wquilongee v. subbreviores, ovato-lanceolatie, tenues, rectangulari-reti- culate, apice trifidee, segmentis tenui-subulatis. Perianthia foliis subduplo longiora, 5plo longiora quam lata, anguste BAZZANIA. 375 ovato-fusiformia, trigona (demum, fructu repleta, fere teretia) apice constricto 6-fida vix ciliolata. B. Brasiliensis, huic affinis, differt foliis subminoribus persistentibus ; basi sat angustioribus nec decurrentibus, apice magis profunde _fissis; foliolis minoribus patelis validioribus apice magis distincte crenatis ; bracteis plurifidis, laciniis ciliolatis. 8. BAZZANIA VIRIDISSIMA, Spruce, Hab. In monte Campana, ad saxa. F' 2:3 x 1-0 (apice x 0°5); ¢ ss—7 ; f 8x -85™™. “2. oOo Robusta, viridissima, prostrata stratificata; caules 2-3-pollicares pluries (divaricato-) dichotomi flagelliferi. Folia imbricata (basi ad 4 lat.) parum decurva, falcata, subdivergentia, longe et oblique ovato-lgulata, apice oblique trunecato argute 3-(4-) dentata, dentibus triangularibus peracutis subapiculatisve, medio szepe submajore, basi antic& profunde semicordata caulem transeuntia, postica perpaulo rotundato-dilatata integerrima (haud crispula), czetero margine repandula. Cellule mediz lateralibus plus duplo mnajores Vix vittam formantes. Foliola triplo fere minora, rotundo-quadrata, apice truncato irregulariter 3—4-crenata-denticulatave, margine subintegerrima, basi obscure cordata, v. semicordata, hine in auriculam parvam rotundam pro- ducta, illinc solum breviter decurrentia. Fl. dioici: amenta ¢ sola habui. B. Brasilensis, affinis, habet folia dimidio minora, basi angustiora (nec semicordata), flavida, pellucida, cellulis lateralibus majoribus ; foliola multo minora, longiora quanv lata, basi minime subcordata; habitus quoque valde diversus est. 9. BAzZANIA TERETIUSCULA (Lindenb. et G.). Mastigobrywm teretiusculum L. et G. Spec. Hep. no. 49, t. 20. Hab. In M. Tunguragua, ad arborum truncos (R. 8.); Mexico (Lirs- MANN). F15x-75; ¢ Aa; f 65x 55mm, Mediocris, dense stratificata, fulva, apice virescens. Caules 3—4-pollicares tenuiusculi anguste dichotomi (angulo 20°-40°); rami apice spe hamati, siccando e foliis devolutis teretiusculi ; flagella erebra. Folia subimbricata decurvo-subsecunda—in sicco devoluta—subfaleata, semicordato-ovato-lanceolata, sublinguzeformia, apice oblique trun- cato breviter 2—3-dentata, dente postico seepius minore infraiipicali, raro apice lanceolata (i.e. solum unidentata), subcanaliculata, repan- dula, basi antica caulem obtegentia, medio evittata ; cellule pachy- dermes pellucide convexule, mediz sensim majores nec in fal- sinervum disposite. Foliola subcontigua, 5 folio subminora, quadrato-oblonga, apice truncato sub 4-crenata, basi excisa, margine repandula. Obs. Stirps Mexicana subminor est, foliorum dentibus magis acutis, vix autem specifice diversa. B. tridens (Nees ; L. et G. Spec. Hep. t. 14) Javanica, certe diversa est foliis planioribus angustioribus et foliolis minutis. 376 BAZZANIA. 10, BAZZANIA PLANIUSCULA (G, et Lindenb.). Mastigobryum planiusculum G. et L, Spec. Hep. 63 t. 12. Hab, Andes Peruvianos, in M. Campana, cum B. ancistrode ; in M. Guay- rapurina, B. bidente aliisque Bazzaniis implexa. E Mexico attulit LIEBMANN. F'1°8x°8 (apice x *4); ¢ de—-ds—ays f* “7 x 65, 6 x 6; br 1°3 x °6™™, 2 Mediocris fuscidula prostrata. Caules 2-3-pollicares, parce dichotomi, flagellis crebris validis reptantes. Folia (basi ad 4 latitudinis) subimbricata, plus minus decurva vel fere plana, angulo subrecto divergentia, subfalcata, a basi amplore antice semicordata postice paulo rotundata fere ligulata, vel ovato-ligulata, apice subobliquo argute trifida; dentibus anguste triangularibus acutis subacuminatisve, eequimagnis vel medio majore, haud raro hinc denticulo armatis ; cellule: subopacie, medize sensim submajores, lateralibus tamen concolores nec in vittam ordinatie. Foliola vix triplo minora subquadrata, apice 4-vel szepe 6-fida, dentibus hamatis cuspidatis, raro muticis, margine utrinque 1-—2-crenata, crenulis rotundatis acutisve, basi vix brevissime cordata. Flores dioici. Bractes ? erecto-patule tenerz pellucide, intime foliis sat breviores ovato-lanceolate, trifidee, laciniis erectis subulato- ee subdenticulatis. >. Chimborazensis, huic aftinis, folia habet submajora, minus ligulata d 7 ? me sat latiora, dentibus apicis brevioribus, margine superne subdenticu- lato; foliola valde irregulariter fissa, ex. p. crenata, ex p. incisula. 11. BAzzANIA CHIMBORAZENSIS, Spruce. FHlab. ad arborum ramos in monte Chimborazo. F2ROxD15 oak 4-5); c. medic gs, laterales 35; ft °9x "75, 8x 75; brlel: pera ox ole, Elata, ex see pendula, flavo-viridis laxe stratificata. Caules 3-4- pollicares dichotomi (angulo vix recto) crebre flagelliferi. Folia subimbricata, falcata, parum decurva, semicordato-ovato-oblonga subtriangulariave, apice truncato serrato-tridentata, dentibus brevi- usculis triangularibus apiculatis, inferiore seepe minore, margine apicem versus apiceque erosula subdenticulatave, basi antica caulem obtegentia, posticd paulo dilatata; cellulie pellucidie parvee ad angulos incrassatee, medic pluriseriatie pallidie ceteris duplo ma- jores. Foliola contigua foliis plus duplo breviora quadrato-rotunda oblongave basi breviter subcordata, toto margine varie crenata incisulave insuperque minute erosula. Flores dioici: foem. postici. Bractew foliis minores tener pellucidie, intime ovatee apice in cilia longiuscula fissee. Perianthia foliis haud duplo longiora lanceolato-fusiformia, supra medium obtuse trigona, angulis canaliculatis, ore constricto subciliato, Mastigobrywm uncigerum Nees. Hep. Jav.; L. et G. Spec. Hep. 112, t. 19, differt foliis duplo brevioribus, dimidio supero linearibus, apice minus argute 3(-2)-dentatis, ceeterum integerrimis, cellulis omnibus subsequalibus. BAZZANIA. 377 11. BAZZANIA FLAVICANS, Spruce. Hab. In M. Tunguragua, ad arbores. F 21x11 (x ‘55 apice); cAs—sy—ays f 1:0 x9, 1:05 1:05™™. Mediocris stratificata flavicans tenera; caules 2-3-pollicares parce dichotomi, decurvi, flagelliferi. Folia subimbricata plus minus decurva vel fere plana, siccando immutata, faleata, oblique ovato-ligulata, apice oblique truncato trifidula, dentibus acutis triangularibus supero spe longiore, basi antica caulem paulo transeuntia, posticd inflexo-crispula vix subdilatata ; cellule pellucide, medize sensim multo majores haud in vittam dispositee, incrassatee, trigonis maximis. Foliola duplo breviora, subimbricata, utrinque a foliis libera, rotundo- quadrata, apice truncato obsolete 3-4-crenata, margine integerrima vel obscure subcrenata, basi breviter cordata, auriculis rotundis haud conniventibus. A B. stolonifera Sw. certe diversa foliis haud decurrentibus et foliolis basi cordatis. 13. BazzANtaA VINCENTINA (Lehm. et L.) Jungermania Vincentina L. et L. Pug. PL IV; Mastigobryuwm Vine. G. L. et N. Syn. Hep. 226; Sp. Hep. 71, t. 13. Hab. Andes Quitenses, ad arborum truncos et e ramis pendula in sylva _, Canelos juxta fl. Pastasa’ (alt. 1500™) etiam in M. Tunguragua, alt. 2500™: Rr. s.; ad fl. Napo (Jamuson).*,Ex insula Sti Vincentii et Bolivia habuerunt cl. auctores Synopseos. F 25 x1:5 (apice x°8); c. media gy, laterales J3-s5; f! 1°25 x 1°25; br IGE per 2:9) x, lam Elata, valida, fulva vel olivaceo-viridis, prostrata stratificata. Caules 3-9-pollicares badii nigrescentesve, ter quaterve dichotomi (angulo 60°-90°), crebre flagelliferi. Folia magna subplana, rarius decurva, subdivergentia, basi ad 4-4 lat. imbricata, apice dissita, subfalcata vel fere recta, semicordato-ovato- ligulata—caulina sepe latiora et subtriangularia, margine antico inferne. rotundato caulem transeuntia, postico subrecto ipsa basi crispula, apice rotundato-truncato tridentata, dentibus brevibus sub- apiculato-acutis, medio dente multo majore triangulari, sinubus lunatis vel subacutis; cellule laterales parve pellucide guttulate, ad angulos incrassate, subeequilateree, medianz (subocto-seriatee) 2-3-plo longiores nervum latum fingentes. Foliola foliis duplo breviora, caule triplo latiora, imbricata subplana sub- orbiculata—alia quadrato-rotunda—basi cordata, auriculis oblongis subrectis vel conniventibus, toto margine late (sub 8-) crenata, vel solum repanda. Flores dioici. Bractee 2 primum patule demum perianthio adpresse, scariose. elongato-reticulate, intime foliis dimidio—interdum duplo —hbreviores, ovate: acuminate apice plus minus lacinulato-ciliate subinde bilobee. Perianthia involucrum subduplo superantia, fusiformia, obtuse 3-plicata, demum ore 6-fida, laciniis apice vel piliformibus vel in cilia pauca brevia erecta fissis; basin versus 2-3-strata, supra medium unistrata. Calyptra duplo brevior basi 3-strata, superne 2-1-strata. Capsula oblongo-subcylindrica. 378 BAZZANIA. Amenta ¢ postica, foliolo sublongiore suffulta, iIncurva crassa ovato- oblonga trigona; bracteze confertissimee 5—8-jugee orbiculate valde concave emarginate retuseve, diandrie; bracteolee subconformes, integree vel apice rotundato erosule. Var. macrophylla S. Folia elongata (3:°0x 1:8™™). Bracteze pro ratione breviores, ovato-orbiculatee. Perianthia maxima (4'0 x 1:0™™),—Ad fluvium Napo legit JAMESON. Var. submutica 8. Folia apice triangulari-truncata, vel bis retusula, vel denique obsolete 3—4-angulato-dentata. Foliola magna (1°65 x 1°65™™"), auriculis baseos faleatis seepe imbricatis. Perianthia maxima (4°0 x 1°5™™),—In sylva Canelos (8. 8.) Obs. Folia basi postica crispata plerumque integerrima, rarius dente brevi uno alterove armata.— Foliola B. Vincentine in exemplaribus meipso lectse, et quoque in Antillanis a cl. Husnor basi distincte cordata; in ‘Spec. Hepat.’ descriptione “e basi cordata amplexic- auli” dicta sunt, quod tamen figurze tabulze citatze minime monstrant. 14. BazzANIA ROBUSTA, Spruce. Hab. Ad fluvios Negro, Uaupés et Casiquiart, in sylvis preecipue humili- oribus, super truncos vetustos rupesque necnon ad arbuscularum ramulos. F 2°5 x 1:25 (apice x *35-"4); c. mediw 35, laterales 35; f ‘9x°7, °9x°85; br’2'0s per 3'S xX 0'9™™. Robusta rigida rufescens dense stratificata. Caules 4-pollicares, iteratim dichotomi, crebre flagelliferi ; rami siccando uncinati, Folia arctissime imbricata, alterna vel (rarius) subopposita, decurvo- secunda, falcata, valde oblique cordato-lingulata, apice angustius- culo truncato argute tridentata, dente medio paulo majore—raro 4-dentata, dente quarto infra-apicali—sinubus rotundatis, dentibus acutissimis interdum denticulatis, basi anticaé gibba caulem exacte obtegentia, postica subampliata parum recurvo-crispula et eroso- denticulata; cellule pellucidz intus 6-sinuate, pariete flavido ad angulos valde incrassato, medize majuscule Jateralibus sensim minoribus fere concolores. Folium dichotomiale integrum, e cordato- ovata basi sensim acuminatum. Folia flagelloram minuta ovata, apice 2~3-dentata, basi externa raro radicellifera, Foliola triplo fere breviora, imbricata, oblongo-ovatove-orbiculata, toto margine crenulato-repanda-erosulave, raro apice magis distincte tricrenata, basi cordata, auriculis subrotundis conniventibus margine sinuato-crispulis integerrimis. Flores dioici. Bracteee 9 subappressee, intima foliis subbreviores ovato- lanceolatee acuminate, apice in cilia erecta dissolute, concavee tenerrime. Perianthia foliis dimidio longiora, tenuia, plus 4-plo longiora quam lata, ovato-subulata, a basi fere trigono-plicata, ore constricto ciliis longis sub 15 in penicillum congestis ornata. Calyptra duplo brevior cylindrico-oblonga, basi quasi-stipitata ibidemque pistillidiis ster- ilibus cireumdata. Capsula calyptra duplo brevior, oblonga, sub- cylindrica. Elateres tenues subobtusi dispiri, sporis minutis sub- duplo angustiores. BAZZANIA. 379 15. BAZZANIA HETEROCLADA, Spruce. Hab. in monte Guayrapurina, Andium Peruvie, ubi in declivibus umbrosis ad rupes arborumque pedem plagas latas densissimas efformat. F 2:0x1:2 (bast) X°65 (sinu) x35 (apice); ¢ So—sy; f' 9x75 br. int Ong maa. Albido-viridis dein rufula, stratificata, procumbens vel suberecta. Caules 3-4-pollicares tenuiusculi anguste dichotomi (angulo sub 30°) ; necnon ramos posticos (e foliorum axilla ortos) foliosos floriferosque —flagella propria autem paucissima, brevia arcuata microphylla sub- radicellosa—proferentes. Folia conferta late imbricata, apice dissita, decurvo-secunda, valde falcata, e basi lata ovali sinuato-angustata, triangulari-ligulata, apice truncato grosse tridentata, dentibus brevi-subulatis acutis, basi antica sub- semicordata caulem obtegentia; margine postico incurvo, basi valde ampliata tamen recurvulo, sinuque grosse 2—4-spinoso vel solum denticulato ; cellule parve pellucids valde incrassate, medianz haud duplo majores in laterales sensim decrescentes (neque nervum fingentes). Folium axillare ceteris longius, ovato-subulatum in- tegrum. Foliola foliis duplo minova imbricata, quadrato-oblonga, apice breviter 4-fida, dentibus rotundatis acutisve, margine undulato utrinque medium versus in dentem angulumve prominulo; basi subcordata, auriculis mediocribus decurrentibus integerrimis. Flores dioici: @ crebri, subinde in folioli axilla binati. Bractez arcte imbricate 4-juge tenuissime, intime foliis equilonge, ovato- lanceolatze acutatse anguste bifidee (media, 7. e. bracteola, trifida) eroso- ciliolata ; bracteze exteriores sensim minores, apice recurvule. Perianthia (valde juvenilia) 6-plicata, ore 12-laciniata, laciniis subciliatis. B. spinigera S. differt dentibus foliorum apicalibus divaricatis ; foliolis basi spinoso-auriculatis. B. Gottscheana Lindenb. (quoad stolones foliosos nostre similis) folia habet inferne angustiora et inermia; foliola apice subintegerrima. 16. BAZzZANIA HUMIFUSA, Spruce. Hab. M. Campana Peruvis, in declivibus humidis ad terram sub fruti- culorum umbra, socio Sphagno Perwviano, sterilis. F 1°7 x°85 (apice) x°3); ¢ dy—gk; f™ “7x ‘7, °85 x “75™™, Rufula reptans stratificata. Caules 3-pollicares tenuiusculi parce dichotomi, angulo subacuto, flagellis perraris. Folia subimbricata subdeflexa, vix faleata, parum obliqua, longe semi- cordato-triangularia, apice angusto oblique truncato argute 3-dentata, dentibus lato-subulatis subapiculatis (supero paulo minore), basi antica caulem obtegentia, postica rotundata angulatave, raro in dentem obtusum porrecta; cellule pellucidze incrassate, trigonis maximis, laterales parvee, median plus duplo longiores pluri- (sub 12-) seriate. Foliola foliis duplo minora subcontigua subquadrata, apice 4 crenata, basi cordata, auriculis rotundo-oblongis falcatis conniyentibus, raro hine prope basin unidentata. 380 BAZZANIA. Var. olivacea. Folia interdum bidentata, normalibus tridentatis inter- posita, basi postica juxta caulem in auriculam parvam rotundatam vel unispinam protracta; foliolis seepe solum 3-dentatis——F' 1:25 x °6 (apice X*125-25); ¢ oy-A; f 55x ‘5™™,—In eodem loco, cum Aneurts mixta. Mastigobryum Hookeri Ldng. (Spec. Hep. 77, t. 14) valde simile videretur ; folia tamen habet majora, minus longe dentata, et foliola apice grosse 4-6-incisa. In var. olivacea folia ramorum superiorum omnia fere bidentata seepe videntur ; ab omnibus? ormis autem B. bidentis facile distincta est foliis dimidio longioribus foliolisque basi distincte cordatis. 17. BAZZANIA ANCISTRODES, Spruce. Hab. in monte Campana Andium Peruvie, ad rupes. F149 x 1:2 (apice x °4); ¢. inferiores 3, later. et super. Jg-2y; f% “9 x °6, ix Gow Mediocris rufula dense stratificata. Caules 2—3-pollicares, pluries dicho- tomi, angulo bifurcationis vario, flagellis paucis. Folia basi ad dimidium fere imbricata, apice dissita, insigniter falcata, valde oblique ovato-ligulata, apice oblique truncato breviter 3-den- tata, dentibus triangularibus acutis, uno alterove spe obsoleto, basi antica semicordata caulem subtranseuntia, posticé anguste ampliata longe decurrentia juxta caulem perseepe 2-3-spina, caeterum integ- errima repandula vel ad sinum subdenticulata; cellule pellucidee valde incrassatee, medize pluriseriate lateralibus sensim majores nec in vittam dispositee. Foliola foliis duplo breviora inbricata rectangulari-ovatove-oblonga. apice rotundato truncato crenulata repandave, margine subintegerrima, basi profunde cordata, auriculis falcatis conniventi-contiguis-imbri- catisve paucispinis, raro externe hastatim unispinis. Flores dioici: B. spinigera 8. huie certe peraflinis, differt foliis subbrevioribus valde gibboso-falcatis, dentibus apicis longioribus divergentibus, auricula postica magis spinosa; foliolis apice grosse bis bifidis (nec solum obsolete crenulatis). B. acanthostipa S.(e M. Campana) distincta habitu robustiore, colore flavido, foliorwm dentibus apiculatis ; foliolis tam latis quam longis, apice alte 4-crenatis, toto margine auriculisque spinosis. Mastigobryum arcuatum G. et L. Spee. Hep. 61, t. 12, quoad habitum, folia conferta uncinata, ete. nostree simile, differt foliis haud decurrentibus at basi gibbis; foliolis minus profunde cordatis basi integerrimis.—M. stoloniferum (Sw.), foliis decurrentibus ac in nostra, distincta est tam foliis quam foliolis integerrimis, his basi vix cordatis. 18, BAZZANIA SPINIGERA, Spruce. Hab. in sylva Amazonica prope fl. Negro ostia, in rivali Tarwmd ripis ; etiam ad Panuré fl. Uaupés, ad arborum radices in sylvis humi- lioribus. F 16 x 11 bast (x °4 apice); f% ‘9 x 65; ¢ 7y™. Subhumilis, pallide flavo-viridis, fragilis, stratificata. Caules 1}-2- pollicares, parce dichotomi (angulo vix recto) flagelliferi. BAZZANIA, 381 Folia arcte (ultra } lat.) imbricata, parum decurvula, ovato-cordatove- ligulata, insigniter gibboso-faleata, valde inzquilatera, apice 3- (raro 4-) dentata, dentibus subineequalibus subdivergentibus peracutis, sinubus plus minus obtusis, basi antic& caulem vix exacte obtegentia, posticé valde rotundato-ampliata ibidemque paucispina, juxta caulem seepe 2-3-ciliata, angulo externo haud raro bastatim unispina ; ceetero margine undulato-repanda, postico (basi excepta) late incurva ; cellulee parvule pellucidé, pariete valde incrassato, trigonis seepe dimidiam cellulam excedentibus, guttulate, convexuli, inferiores mediz sensim majores subelongatz haud tamen in vittam dispositie. Foliola 4 folium excedentia, ovato-oblonga, apice rotundato-truncato varia, seepius bis bidentata, dentibus obtusis, acutis, apiculatis acuminatisve, basi profunde cordata spinisque paucis armata, inter- dum subhastata, juxta caulem sepe utrinque in spinam longam, cum spina contraria cruciatam, protracta, ceetero margine repanda vel subcrenata. Flores dioici. Bracteze 9 erecto-patule, foliis breviores, apice bifidee et ciliato-fimbriatz. B. robusta 8., ad eundem fluvium Uaupés lecta, differt foliis validis multo longioribus—vix autem latioribus—minus abrupte falcatis, basi postica minus lata solum eroso-denticulatis ; foliolis (pro foliis) breviori- bus, toto margine crenato-repandulis, auriculis baseos suborbiculatis integerrimis. Duz species, in Andibus Peruvianis lect, a B. spinigera differunt : B. acanthostipa 8. foliis magis elongatis, foliolis (pro ratione) minoribus quadratis ; 2. B. heteroclada 8. foliis majoribus, foliolis quadrato-oblongis basi inermibus. 19. BAZZANIA ACANTHOSTIPA, Spruce. Hab. Andes Peruvianos in M. Campana, ad saxa, aliis Bazzaniis con- sociata. F2:0 x 1°15, 2°2x 1:2; c. media infertores 35, laterales py; f' °85 x ‘85mm, Elata, erecta procumbensve, stratificata, pallide flavida. Caules 6-8- pollicares simplices vel semel bisve dichotomi, flagelliferi. Folia tenera distiche patula, parum decurvula, basi ad 4 lat. imbricata, subfaleata, valde oblique semicordato-ovato-lingulata, apice oblique truncato subacute tridentata, dentibus triangularibus apiculatis, basi antica caulem transeuntia, postico amplata ibidemque recurvula 4- spina, spina infima longiore supra caulem protracta; cellule pel- lucidee, trigonis maximis, mediz inferiores elongate lateralibus sensim duplo longiores nervum indistincte fingentes. Foliola 24plo breviora subcontigua cordato-quadrata, apice rotundato truncatove acute 4-crenata, crenulis oblongis rotundatis vel abrupte apiculatis, margine utrinque grosse 1—2-dentata, raro imermia, basi cordato-biauriculata, auriculis conniventibus imbricatis oblongis recurvo-crispis vario modo 2—4-spinis. B. spinigera diversa est foliis brevioribus insigniter arcuato-falcatis ; foliolis pro ratione multo majoribus, margine laterali integerrimis ; B. heteroclada statura humiliore, ramis posticis seepe foliosis ramulosisque, neque solum flagelliformibus ; foliis confertis apice longidentatis ; foliolis basi integerrimis decurrentibus, vix cordatis, MICROPTERYGIUM. ee] OO bo XIV. MICROPTERYGIUM, Lindenb. N. et G. Syn. Hep. Genus, habitu distinctissimum, ab affinibus Bazzania et Lepidozia fructificatione sola eegre dignoscendum, congruit enim florescentiis hypogenis czterisque caracteribus, nec differt nisi bracteis ? cari- natis, perianthiis ore longissime ciliatis, capsula prelonga cylindracea bistrata, et floribus ¢ constantermonandris. Quoad ramificationem autem foliaque differentias maximi momenti ostendit. Plante subpusillze in cespites magnos depressos crescunt. Caules plume- formi-imbricati, a caudice repente subaphyllo radicelloso orti, arcuantes, laxe pinnati ; rami laterales, foliis exacte axillares, cum foliis devexi; adveniunt etiam rami postici, perseepe ad flagella radicantia redacti, interdum ad caulis instar pinnati et foliosi. Folia incuba, equitanti-imbricata vel subdissita, celluloso-denticulata vel apice serrulata, profunde complicato-biloba, lobis fere vel usque ad apicem connatis, superiore majore, sutura cum inferiore longe intramarginali (unde folia ad carinam late alata evadunt). Rete pro m. densissimum, e cellulis conico-prominulis verruculosis exaspera- tum; solum in M. letophyllo laxius, cellulis subplanis levibus. Foliola ubique presentia, foliis 2-10plo minora, angusta vel sub- rotunda, apice 3-4-dentata-spinulosave. Hab. In sylvis calidis opacis ad truncos prostratos cariosos, rarius ad saxa vel ad arbores vetustas. Distr, Genus pulcherrimum solum in America tropica, equatoriali precipue, in die cognitum. In sylvis fluminis Amazonum et in Andium orientalium radicibus valde abundat. Species autem per- paucas cognovimus, in libris confusas et inextricabiles. Mzerop- terygium vulgare Nees in Syn, Hep. et in Spec. Hepat. Lg. et G. species plane composita est. Specimina sub nom. ‘“ Micropt. vulgare” a beato Montagne mecum communicata, pro typo Jung. Pterygophylli Martii (an recte?) habui. Jung. cymbifolia Lehm. et Lg., e Guadalupa allata, (ad Novum Eboracum per errorem indicata) mihi adhuce ignota restat. Obs. Mastigobrya 3, a cl. Lindenberg et Gottsche in opere suo prestan- tissimo ‘ Species Hepaticarum ’ descripta, se. M. anzsostomum L. et L, (e Nova Zelandia) ; M. inequilaterum L. et L. et M. echinatum G. (ex India orientali), ad Micropterygium e longinquo accedunt: foliis canaliculatis, apice ineequaliter bilobis, facie asperis, necnon foliolis apice trifidis ; distinetee autem foliis minime complicatis, perianthiis ipso ore solum denticulatis, &e., &e. Easdem pro genere proprio, a Mastigobryo (i.e. Bazzania) bene distincto, rite habendas censeo. MICROPTERYGIUM. 383 1. M. parvistipulum. Parum ramosa, ramis oligophyllis. F. equitantia, ad basin fere usque complicata ; lamina superior triplo longior quam lata, ovato-lanceolata oblique acuta subserrulata, facie aspera; 1. inferior duplo angustior, lanceolata; ala laminz inferiori similis eequilonga, minus lata; cellule preminute, in conum truncatum asperulum prominule. F!* foliis 10plo breviora, cuneato-rotunda, apice 3—4-dentata integerrimave. -Perianthia trigona albida, ore longiciliata. 2. M. Pterigophyllum. Vage ramosa, ramis polyphyllis. F. vix imbri- cata, ad basin fere usque complicata, serrulata, aspera ; 1. sup. duplo longior quam lata, sublingulata acutata ; 1. inf. vix duplo angustior, acuminata ; ala angustiuscula, longe supra folii basin desinens ; c¢. minutulz prominule et asperule. F'* foliis plus duplo breviora, suborbiculata serrulata, apice argute 3-dentata. Per. superne alte 3-carinata, ore longissime ciliata. 3. M. angustistipulum. Laxe pinnata, pinnis longiusculis. F. equi- tantia repanda asperula ; 1. sup. subduplo longior quam lata, ovato- oblonga, truncato-obtusata ; 1. inf. superiore plus duplo angustior, paulo brevior; ala lamin inferiori subequilata; ¢. praeminute prominulz asperule. F!* foliis vix duplo breviora, angusta, ovato- lanceolata, apice spinoso-2—4-dentata, raro integra. 4, M. leiophyllum. lLaxe pinnata, pinnis pro m. brevibus. F. subequi- tantia subleevissima, apice truncato pauciserrata, ovato-oblonga, solum in dimidio supero complicata ; 1. inferior alaque 1. superiore plus triplo angustiores ; ¢. parvee planiusculz pellucide. F'* foliis duplo breviora, ligulato-oblonga, apice 3—-4-spinulosa. Per. omnium maxima, linearia, obtuse trigona, ore longiuscule ciliata. 1. MICROPTERYGIUM PARVISTIPULUM, Spruce. Hab. in truncis prostratis cariosis ubique sylvarum ad fluv. Negro et Uaupés ripas, in nemore arenoso Umirisdl dicto prope Manaos preecipue, frequens. F. lam, sup “75 x ‘25, inf 7 x 15, ala 1™™ lata, c ,; f'* 07 x 08; bractez 1°35 x ‘4-5 ; per 3:0 x 0°5, caps 1°0 x *B5™™. Pallide viridis, late czespitoso-procumbens. Caules 2™ longi, basi sub- aphylli radicellosi, dein arcuantes, folia distantia parva ovata acuminata alato-carinata gerentes. Rami laterales pauci, 3™™ longi, suberecti, plumeeformi-arcuati, ambitu. (cum foliis sub 15-jugis) lineari-lanceolati ; postici perpauci flagellares. Folia equitanti-imbricata planiuscula, leniter decurvula, angulo axillari sub 70° patentia; lamella superior oblique ovato-lanceolata, triplo longior quam lata, oblique acuta, basi semicordata, margine distanter serrulata necnon cellulis prominulis valde crenulata erosulaque, faciebus asperrima ; 1. inferior basi vix brevior, apice cum superiore contermina, lanceolata acutata, basi rotundata; ala lamelle inf. equilonga, angustior tamen; cellule preminute pachydermes angulato-rotundee-oblongeeve, in conum truncatum asperulum alte prominulz, carinam versus majores rectangulares. Foliola preeminuta, foliis 10plo breviora, caulivix zequilata, cuneato-rotunda, apice irregulariter 3-4-dentata raro subintegerrima, pro m. arhiza. Flores dioici: ramulus ? e caulis facie inferiore ortus, brevissimus, basi radicellis villosus. Bracteze 6, biseriate, appressee, 3 exteriores minute, interiores foliis duplo fere longiores, anguste ovato-oblonge, MICROPTERYGIUM. oo fora) TSS carinate, apice angusto bifidule longiciliateeque, ceetero margine distanter ciliolate, reti laxo elongato levi nonnisi apicem versus asperulo. Perianthia magna, ramis foliosis subeequilonga, albida lineari-subulata trigona, ore in cilia prelonga flexuosa pluritida, reti superne asperulo, inferne levi et valde elongato. Calyptra duplo brevior tenuissima, demum irregulariter rupta. Capsula magna cylindrico-oblonga. Amenta ¢ breviuseula incurva albida; bracteee 5-8-juge conferte pellucide ovato-cymbiformes, acumine breviusculo tenui spe bidentulo, margine hic illic denticulato. Antheridia solitaria. 2. MicropreryaiuM PrERYGOPHULLUM (Mart.) Jungermania Pterygophyllum Nees in Mart. Fl. Bras. icon. t. 19; Micropterygium vulgare Nees, Lg. et G. Syn. Hep. p.p. Hab. ad truncos putrescentes in monte Guayrapurina Andium Peruvize. Guiana gallica (Montagne, hb.) F. lamina sup. 6 x°3, inf 5 x°18, ala -4x°08; f 25x25; ¢ gh-2 br. intima 16x ‘55; per 35x °55, cilia 4-7 longa; cal 1°35 x °55 caps 1:0 X35™™, Pallide viridis ceespitoso-procumbens, plagas magnas laxas formans. Caudex breviter repens subdivisus, radicellosus subaphyllus, caules pollicares assurgenti-arcuantes et flagella radicantia edens. Caules vage insequaliter ramosi; rami laterales pro more polyphylli, raro ramulosi; postici vel tota longitudine, vel basi sola radicelliferi, superne foliosi interdum ramulosi. Radicelle fasciculate, sub 6 (4-12) in quoque fasciculo, e foliis minutis (squameformibus) tristichis ortie. Folia subdissita vel parum imbricata, late patentia, supra subtusque convexula, e cellulis prominulis scaberulis exasperata; lamella superior trapezoideo-lanceolata-lingulatave sensim acutata, margine supero rectiusculo solum basin versus late rotundato vel etiam sub- semicordato ; 1. inferior apice cum superiore contermina, basi sub- brevior, medio vix duplo angustior, lanceolata acuminata serrulata ; ala folio 4-plo fere angustior, longe supra basin desinens ; cellule minutule subpellucidee, rotundo-quadratie-hexagoneve, facie alte convexee coniceve, minute tuberculosee. Foliola subcontigua, foliis plus duplo breviora, suborbiculata concava, apice incisulo-3-dentata, toto margine subserrulata. Flores dioici: 2 ramulo brevissimo postico, basi polyrhizo, e caudice vel spe e caule folioso orto, constantes. Bractez 6, biseriatee appressee ; intima (postica) foliis caulinis triplo fere longior, oblonga acuminata, triplo longior quam lata, tenuissima, carinata, apice in cilia 3-4 pree- longa dissoluta, ceetero margine subciliata, reti elongato pelluci- dissimo ; bractea secunda sublatior firmiorque, minus ciliata; br. tertia paulo minor ; bractez seriei exterioris multo minores, extima minuta. Perianthia magna, involucrum plus duplo superantia, lineari-trigona subulato-acuminata superne alte plicato-tricarinata, apice connivente in cilia longissima ($™™") soluta, cellulis angustis, triplo longioribus quam. latis, fere vacuis, planis sed minutissime asperulis, conflata. Pistillidia ad 15 vidi: sterilia demum calyptree basiadnata. Calyptra perianthio triplo fere brevior, pyriformis pallida tenuis, cellulis uni- stratis ineequilateris 4-7-gonis constans, demum apice fisso bilabiata. MICROPTERYGIUM. 385 Pedicellus validus brevis. Capsula magna cylindraceo-oblonga, triplo fere longior quam lata. Amenta ¢ in planta propria, ramum posticum breviorem longioremve terminantia, circinnata, julacea ; braceteze ad 12-jugee, imbricate, subrotund, cymbiformi-complicatze (arte explicate paulo latiores quam long), acuminulate bidentuleve, subdenticulate, valde pellucidee. Bracteolee oblongo-rotundze bifidulee ubique obvie. Specimina subnom. “Micropterygium vulgare Nees,” acel. Montagne recepta, ad hancce speciem spectant. Folia e cellulis alte et subacute conicis asperrima, toto margine serrulata et celluloso-erosa. Foliola quadrato-rotunda, apice subtridentata, valde celluloso-serrulata, ramorum tenuiorum oblonga ovaliave, bifidula. Perianthia omnino eadem ac in nostra. In M. Campana aderat forma dense late czespitosa, ex albido-viridi tufula; foliis confertis laxe complicatis cymbiformi-concavis abrupte acutis, lamella inferiore latiore, ovato-lanceolata, ala breviore, cellulis supra subtusque in conum truncatum verruculosum alte prominulis. (M. Campanense Mst.) 3. MICROPTERYGIUM ANGUSTISTIPULUM, Spruce. Hab. ad saxa in M. Campana ceterisyue Andibus Peruvianis inferioribus, alt. circiter 1000™. F. lobus *6 x °33, lobulus 5 x °15, ala ‘5 x °125, ¢ <4, ; foliola °35 x 15mm, Ceespitosa pallide rufula. Caules vix pollicares, basi brevi repentes, dein assurgentes et arcuato-decurvi, vage vel laxepinnatim ramosi, ramique (seepius elongati) subzequifoliati, solum basi apiceque subparvifolii ; hic illic, basin versus preecipue, rarius e medio tergo apiceve, flagella pallida tenuia flexuosa centimetrum longa, primo visu aphylla sed radicellosa, proferentes. Alia flagella autem apice normaliter foliosa interdumque ramulosa. Folia pulchre disticha, eequitanti-subimbricata, arcte complicata ; lobus (s. lamina superior) duplo fere longior quam latus, oblique ovato- oblongus vel subrhomboideus, truncato-obtusatus, basi dilatatus subinde subsemicordatus, margine e cellularum tuberculis minutis- sime asperulo, superne angulato-repando rarius grosse subdenticulato ; lobulus (s. lamina inferior) dimidio lobo subangustior, eidem margine suo inferiore adnatus, haud tamen ad lobi ipsum marginem sed paulo intra (sicuti limbus alave lobulum superstet), paulo ante folii apicem sensim vel subabrupte desinens, margine superiore scaberulo repando ; ala semilunari-lineari-lanceolata, lobulo subaquilata. Cellule pree- minute, subguttulate, subquadratee rhombezve (medium folii versus distincte subhexagonze) parum prominule, tota superficie crebre minute tuberculose, unde folia asperula evadunt.—Folia flagellorum foliolaque minuta, subequimagna, distantia, squameformia, apice vel integra vel digitatim fissa ; radicellz (seepius 8), omnibus foliis adjectie, 4-10-fasciculate, filiformes, pallide. Foliola dimidio folio sublongiora, concava, subappressa, vix imbricatula, ovato-ovalive-lanceolata, apice spinoso-bidentula vel 3-4-dentata, raro integra et acuminata. Flores dioici: 9 subbasales, ramulo brevi sistentes (imperfecti solum visi). M. Pterygophyllum, huic proxima, differt foliis foliolisque toto margine 386 MICROPTERYGIUM. serrulatis, foliorum ala duplo angustiore basi longe breviore, foliolis paulo brevioribus suborbiculatis (nec lanceolatis). 4, MIcROPTERYGIUM LEIOPHYLLUM, Spruce, Hab. per planitiem Amazonicam valde frequens, in sylvis primevis umbrosis ad saxa et arborum truncos tam vivos quam prostratos et putrescentes ; locis (Brasiliw) Caripi, Mandos, Taruma, S. Gabriel, fl. Uaupés, &c.; (Venezuele) Cocti, S. Carlos, &e. In Andibus orientalibus rarior est et vix supra 900™ ascendit. F'°85 x -43, lamina inf. "4x °25; fl" 4x 183 ¢ 3p 5 br. nt 15x °555 per 4:5 x°*75; caps ‘75x °3™™, Pallide viridis pellucida, in plagas latas laxiusculas extensa. Caules 3-4 ™ longi, validi, 8 cell. diametro, 20 cell. circiter circumferentia, arcuato-reptantes, intricati, basi subaphylli et flagelliferi, dein dis- tanter parvifolii laxepinnatim ramosi. Rami distantes, laterales simplices erecti, apice decurvi (in sicco circinati) oligo-(raro_poly-) phylli; postici pauciores, plerumque flagellares rufescentes flexuosi parce radicellosi, alii autem foliosi iterum ramulosi. Folia subimbricata decurvulo-secunda sublevissima, oblique ovato- oblonga, apice subrecte-rotundatove-truncato pauciserrato-dentata (dentibus 4-7), ceetero margine repandula integerrima, dimidio inferiore subplana vel caviuscula, superiore laxe et valde ineequaliter complieata; lamina postica folio duplo brevior, plus triplo angustior, semilanceolata, apicem versus 2-3-denticulata; ala laminz subcon- formis, integerrima; cellule parvee (pro genere majusculz) pellucide, subpachydermes, planiuscule, subrhombe, carinam versus longiores et rectangulares vel subhexagonze, endochromio parco. Foliola foliis duplo breviora, contigua, erecta, subconcava, ligulato- oblonga, apice 3—4-spinulosa, raro radicellifera. Flores dioici: 9 rari, in ramo brevissimo postico terminales. Bractese 9, tristichee, appressee ; exteriores minutissime ; intima foliis 3plo fere longior, ligulato-oblonga, apice profunde inciso-ciliata, ciliis sub 4 latiusculis flexuosis subciliolatis, caetero margine subciliolata ; bractese duse proxime sequentes sensim minores, latiores, minus incisee: omnes tenues pellucidee obtuse carmatze. Perianthia maxima, bracteis triplo longiora, linearia obtuse trigona incurva levissima, apice subconstricto in cilia longiuscula torta soluta; cellulee anguste rectangulares. Calyptra plus duplo brevior, tenuis. Capsula elongato-oblonga bistrata; cellule strati exterioris oblongo-quadratie, pariete trabeculato, interiores fibris semiannulari- bus intus fulcite. Elateres longi, laxe dispiri, folliculo tenuissimo. Spore minute, diametro elateribus subminores, leves. Andrwcia tenuispica, varie posita, plerumque ramulum posticum totum, vcl ejus apicem solum tenentia, rarius in ramis lateralibus terminalia. Bracteze ad 10-jugee, parvee tenerrimee conferte: assurgenti-secundee orbiculatee concavissime eroso-denticulate, inferiores mutica, supe- riores acuminate. Antheridia solitaria globosa, in stipite equilongo. Bracteolee longitudine bractearum, lanceolate, utroque fine acu- minatie. Ad S. Gubriel fluvii Negro, in sylvis humilioribus ad arborum radices, advenit forma luxurians, densa, seepe bipinnata ; ramiis foliisque planioribus, his magis serrvatis, dentibus ad dimidium folium fere descendentibus ; MICROPTERYGIUM. 387 foliolis ovalibus apice argute 3-4-spinis. Ad hane forman spectare videtur “ Mier. vulgare” Spec. Hepat. quoad jig. 4. tabule 21, foliolis apice autem 4-ciliatis. XV. MYTILOPSIS, Spruce. Nov. gen. in tractatu “De Cephalozia” (a. 1882). Caudex brevis prostratus subdivisus rhizomatosus, cawles lineari- frondiformes arcuantes, subsimplices vel paucirameos edens, ramis omnibus hypogenis, aliis flagellaribus. Folia perfecte plano-disticha complicato-carinata subequivalvia, margine parum hiantia, valvulis lamellisve ad apicem usque accretis, carina superne angustissime alata ; cellule praminut pachydermes verruculose. Foliola caulina omnino nulla. ores cladogeni: ¢ amentiformes, bractee mon- andre. Bractee floris 9 2—3-jugze, tristiche, intime foliis sub- longiores, tenuissimz, obtuse complicate: bifidee subciliatee. Peri- anthium liberum elongatum leptoderme, inferne 4-(rarius 3-)angulum, apice 6-8-plicatum, ore longiciliatum. Calyptra libera tenuis. Capsula oblongo-cylindrica bistrata, cellulis internis vacuis. Elateres dispiri. Sporce tuberculose. Hab. et Distr. Unicam speciem adhuc cognitam locis cavis Andium orientalium Peruvie inveni. A Micropterygio distincta erit Mytilopsis defectu foliolorum, foliis eequaliter complicatis, structura perianthu, &e. &e. 1. MYTILOPSIS ALBIFRONS, Spruce (TAB. xiv.). Hab. in montibus Andium Peruvianorum orientalium, alt. circiter 1000 metra supra mare, haud infrequens, locis cavis umbrosis ubi ad folia emortua saxaque ceespites latos eflicit. Fructum rarissimum nonnisi ad fluvii Cumbasa caput reperi. Caules $-15™ longi, (cum foliis) 1:2™™ lati; f. lob. 65 x ‘3, ¢ 4; br “75 ee; bE 9 Xd; per 2°0 x 0°6,) 1°35 x 0°55 cal 1-0-8; caps 8! x 5; elat 25mm, Ceespitosa, albescens, albido-viridis, raro roseo picta, opaca, in sicco fulva, rigidiuscula et fragilis. Caudex prostratus flexuosus divisus rhizo- matosus et radicellosus, caules assurgentes erectosve, apice decurvulos, foliosos, solum basi brevi spatio subaphyllos, fertiles (eum foliis 20- 27-jugis) frondem lineari-lanceolatam, steriles (cum foliis sub 40- jugis) linearem, sistentes, pancirameos edens. Rami omnes postici, alii breves ad florescentiam redacti; alii flagelliformes, folia minuta et radicellas gerentes, alii normaliter foliosi. Folia perfecte disticha, transversa, arcte complicata, marginibus parum hiantia, contigua vel subequitantia, arte explanata cordato-oblonga; lamellz lineari-rhomboide, fere equimagne, paulo ante apicem grosse unidentate, toto margine eroso-repandie et minute verruculosie; anterior dimidio inferiore posteriorem perpaulo superans et in alam perangustam (1-8 cell, latam) repandam ultra carinam protracta ; MYTILOPSIS. Oo io 2) io 2) cellule preminute subrotunde, intus 6-sinuate, carinam versus oblongo-hexagonz, omnes convexul, minute tuberculosze, pariete incrassato, trigonis magnis. Folia caulina apice valde fissilia, raro revera subbifida. F. flagellorum minuta cochleata bifida. Foliola caulina omnino nulla. Flores dioici postici: 9 e caudice, rarius e caule orti, interdum fasci- culato-2-3-ni. Bractez tristiche, bi-trijugee, 3 interiores foliis sublongiores, tenuissimz, ovate, obtuse complicato-concavee, ad $ bifida, segmentis tenui-acuminulatis, superne subciliate, reti laxiore elongato rectangulo et rhomboideo-hexagono vacuo; intima (brac- teola) paulo longior, ad } fissa, inciso-ciliata. Bracteze exteriores multo minores, late oblique ovate concave, apice integre bifidulzeve. Perianthia bracteas plus duplo excedentia, tenuia, anguste pyramidato- fusiformia,*inferne obtuse 3-vel seepius 4-gona, apicem versus 6-8- plicata, ore conniventi-clauso ciliis longis flexuosis fimbriata, textura bractearum. Calyptra paulo brevior ovalis tenuis. Capsula oblongo- cylindrica, vix duplo longior quam lata, pallide badia, bistrata ; cellule ad parietes laterales trabeculis paucis fulcite, strati interioris _ fibra semiannulari carentes. Elateres longiuscul, laxe dispiri, subacuti. Spore globose, elaterum diametro, tuberculose. Andrecia amenta tenuia postica arcuata sistentia; bractesze pauce orbiculate concave, apice bidentes, monandre. Obs. The branches spring from the middle of the under face of the stem. The leaves veil the stem with their cordate base both at front and at back, and their bases imbricate those of the opposite side of the stem ; so that the branches also are veiled at their insertion by the leaf-bases on both sides, but are not axillary to them as the pinnate branches of Micropterygium are. The @ branches, usually shortened down to the flower alone, are sometimes elongate and flagelliform, radicellose except at the flowering apex. XVI. CEPHALOZIA, Dum. emend. Recueil d’Obs. sur les Jung. (1835). Trigonanthus Spruce, Ann. and Mag. Nat. Hist. (1849). Jungermanie sp. Syn. Hep.* Plante e prothaliio lineari filiformive, interdum ramoso, orte, pro more pusillze minuteve, raro majuscule, foliose—in unica specie frondosee—radicellosze, subramosz, ramis omnibus hypogenis (e facie caulis inferiore ortis), nisi in aliis speciebus subgeneris Cephalozielle quibus accedunt rami pauci (rarissime omnes) laterales. Folia succuba, in paucis subtransversa, sat lata, plus minus concava, vel subcomplicata, in plerisque subsequaliter biloba, in paucis integra, margine incurvulo—nullibi reflexo—integerrimo, rarius denticulato, Foliola foliis minora, in plerisque speciebus ex parte vel omnino nulla, ad florescentias autem semper presentia. lores dioici vel monoici (autoici, raro paroici); ¢ monandri, in amentis posticis, * Conf. etiam tractatum ‘On Cephalozia. Rich. Spruce, 1882.’ CEPHALOZIA. 389 rarius in spicis terminalibus, positi. loves 9 in plurimis speciebus cladogeni, in perpaucis normaliter acrogeni, in aliis situ vario nunc terminales nunc postici. Bractew in capitulum congestz, tristiche, sepissime trijugee, bi- (dein 3-4-) lobse, inter se (saltem intime) sepe connate, a periantho tamen libere. Pistillidia 20, raro pauciora. Perianthiwm elongatum trigono-prismaticum (in subgenere Cephaloziella 3-6-gonum), ore truncato constricto varie fisso denti- culatove, raro integerrimo. Calyptra parvula, basi pistillidiis sterilibus circumdata. Capsula oblonga, ab ipsa basi quadrivalvis, bistrata, cellulis strati interioris fibris semiannularibus fulcitis: pedicello elongato tenui, cellulis in longitudine sub 60-seriatis conflato, suffulta. Hlateres dispiri decidui. Spore minute. Hab. Loca umbrosa et subhumida in sylvis et rivulorum ripis planitiei et montium humiliorum, ad terram, saxa, et preprimis ad truncos putrescentes. Loca aperta fugiunt, turbariis et sphagnetis exceptis, ubi inter muscos hygrophilos nidulant. Nullo climate nisi frigidissimo exules, species perpauce alpinz vel arctice in die cognite. Dist. In zonis temperatis, boreali precipue, magis frequenter adveniunt Hucephalozie et Cephalozielle ; sub equatore paucee species, isteeyue propriz, inveniuntur. Proto-Cephalozias, Pteropst- ellas et Alobiellas solum ex America tropica possidemus. Zoopsis habet tres species, alteram Amazonicam, alteras duas Australasicas et Malayanas. Odontoschismatis paucze species bene cognite cos- mopulitanz fere videntur, nullis terris nisi australioribus deficientes. Subgenus I. PROTO-CEPHALOZIA, Spruce, op. cit. (1882). Caulis nullus, nisi axiculus floris feminei brevissimus, ex ipso prothallio ortus. ractee foliacez tristiche profunde bilobe. Perianthia trigona, ore in 6 lacinias longas fissa. Andrecia in prothallii ramis nematoideis terminalia, spicata, bracteis minutis monandris. 1. CEPHALOZIA EPHEMEROIDES, Spruce. (Tab. XV.) In sylvis fluvii Negro superioris, locis 8. Carlos et Catanacunami, ad terram umbrosam. Filamenta ‘8—-1°6™™ longa, eorundem cellule 73-3 longe, 7™™ late; br. Q 1°75, cellule ;5-1; per 2°5; caps 3 x °18™™. Minuta albescens acaulis, facie Ephemert equinoctialis Spruce. Protonema ceespitosum, filamentis confervoideis suberectis fastigiatis subdicho- tome ramosis constans. Cellule filamentorum uniserlatee—rarissime basin versus biseriate—vix duplo longiores quam late, pellucide TRANS. BOT, SOC. EDIN. VOL. XV. 24 390 CEPHALOZIA, | PROTO-CEPHALOZIA. chlorophyllose. E filamentorum fasciculi basi oritur flos ? ; alia filamenta apice in amenta ¢ abeunt: florescentia igitur monoica. Bracte floris 2 trijugee tristichee confertz suberecta, intime majuscule bifidee-partiteeve integerrime, lamina basali ovata, laciniis subulatis apice fere capillaribus ; bracteola bracteis equilonga, magis profunde fissa ; cellulee magne tenues pellucide lineari-hexagone-parallelo- grammeve. Bracteze exteriores sensiin minores, conformes. Perianthia bracteas solum dimidio superantia, pellucida, trigono-subulata incurva, ore (tam sterilium quam fertilium) profunde (ad }-$) sexfida, laciniis tenuibus flexuosis capillaceo-acuminatis. Capsula parvula oblonga. Andreecia bracteis foemineis plus duplo breviora tenuia recurva ; bractez sub 10-jugee minute incurvo-secunde ovate bifidee monandre. Subgenus II. PTEROPSIELLA, Spruce. Pteropsiella Spruce in Journ. Bot. (1876). Plant sat robuste, pro filicula, Metzgerta vel Pallavicinia quadam facile preetervisee. Caulis validns, utrinque prelate alatus, revera frondi- formis, serpentinus, facie infera ramos alios trondosos, alios flagelliformes, alios floriferos proferens, folia autem nulla parte preter ad florescentias ostendens. Bracteew @ folia tristicha profunde bifida sistentes. Pert- anthium prelongum lineari-subulatum trigonum, leptoderme, _ ore 6-laciniatum. Calyptra parva tenuis. Capsula oblongo-cylindrica ceeteraque omnino Cephaloziw. Andrecia amentiformia, postica, raro in ipso caule terminalia; bractece monandree. 2. CEPHALOZIA FRONDIFORMIS, Spruce. (Tab. XVI.) Pteropsiella frondiformis S. in Journ. Bot. 1876. Hab. in aggeribus umbrosis, rivulorum ripis, truncis semiputridis, fructibus lignosis decisis, etc., ad fluvios Negro, Uaupés et Casiquiari, frequens, prope pagum San Carlos preecipue. Cellule frondis 3, -35°™, bractearum Wo" longe. Bractee intime 1:3 x °8; per 3°8x°7; cal 9x°6; caps “(5x'3; amenta g 15-20; br g “3 x <6) Frondes 1-2-pollicares olivaceo-virides prostrate: plance serpentine, ramos paucos posticos frondiformes simplices—raro iterum ramosos— edentes, basi ad solam costam redacte, deinde in laminam tenuem lato-linearem—hic illic constrictam adeoque inzequilatam—apice angustatam, dilatatee ; subtus per intervalla radicellas breves fasci- culatas, necnon flagella aphylla radicellis hirta demittentes. Caulis (costave) validus semicylindricus, supra planus 2-3-cellulas latus. Cellule caulis corticales 9-seriatee brevi-cylindricee subcompressee pellucidee, interna 2-3-plo angustiores sub 20-seriatee subopacee. Pagina frondis latitudine inaequalis, plerumque utrinque 4-6- cellulas lata, hie illic ad 12 cell. usque lata, margine crenulato-erosa ;. cellule majuscule elongato-4—6-gonze, in seriebus angulum 70° cum costa formantibus dispositee, pellucida, fere vacuee, leptodermes, in ztate subincrassate, marginales longe minores. Flores dioici: @ ramulo perbrevi, facie costee postica orlundo, sursum curvato, constantes. Bracteze 3-stiche, 3-4-jugee; intima multo PTEROPSIELLA. | CEPHALOZIA. 391 majores liberze pallid pellucide elongato-areolate ovate, ultra medium bifid, laciniis tenuiacuminatis denticulatis spinulosisve ; bracteole bracteis conformes, dimidio minores vel fere eequimagne. Perianthia bracteas triplo superantia, incurva elongata lineari-subulata triquetro-prismatica, ore constricto 6-fida, laciniis capillaceo-acumi- natis subspinulosis. Calyptra perianthio 4-plo brevior ovalis tenuis. Capsula oblongo-cylindracea, ad basin usque 4-valvis, bistrata ; cellule exteriores tesselatee, columnis parietalibus hic illic fulcite, interiores fibris semiannularibus dissitis notatee. Elateres brevius- culi subobtusi dispiri, nonnulli basales ceteris breviores obtusati. Sporze globose, elateribus eequilatee, minute tuberculosee. Amenta ¢ postica—raro in frondis ipsius apice terminales—olivaceo- viridia, julacea; bracteze 10-20-juge, conferte assurgenti-secunde rectangulari-cuneatze breviter bifidee, segmentis frequenter in cornua brevia porrectis, concave monandre. Bracteolee pro more (nec semper) adjectse sunt: parvee, quadrate bidentate, dentibus cellula 1-2 constantibus.—Plantz monoice raro adveniunt. This species is fond of growing on the decaying bark of old or prostrate trees. Luxuriant specimens were gathered on fallen pods of Parivoa excelsa. I found it once intermixed with male plants of C. integrifolia, from which its olive-green catkins at once distinguished it; C. integrifolia having them white, besides a distinctly leafy stem. The radicles originate in tubercles (of one or two cells) placed here and there on the underside of the costa; but even the tubercles are not developed unless radicles be needed for attaching the frond at that point. In the male spikes a few more cells are sometimes added on to these tubercles, which thus become underleaves, or bracteoles. The fronds, whether primary or secondary, often root also at the attenuated point. Subgenus III. ZOOPSIS, Hook, fil. (genus). Crypt. bot. Antarct. Voy. p. 55 (1846); Lindberg, Journ. Linn. Soc. (May 1872). R.S. in tract. cit. (1882). Plante minut prostrate cladocarpice, caule angusto frondiformi ad speciem (haud revera) aphyllo, laxe corticato, subradicelloso, paucirameo. Folia preminuta, sublongitudinaliter inserta 1-2-loba, lobis basi cellula singula (raro bina) magna constantibus, apice vel muticis vel cellula tenui unguiformi apiculatis. Foliola subnulla. Bractew foliis longe majores tristiche bipartite, laciniis subulatis. Perianthia pro plantula maxima, distincte trigona vel fere teretia, apice constricto profunde laciniato. Capsula etc. omnino Cephalozic. 3. CEPHALOZIA MONODACTYLA, Spruce. In sylvis ad fluvii Negro cataractas, in terra nuda, preecipue ad cumulos a vermibus magnis suffossos; necnon in Lepidozia chetophylla parasitans. Rami 1-1°5™™ longi. Folia yg™™ longa. Caulis 75™™ latus. Cellule corticales, necnon foliares inferiores Jo, superiores 25™™. Bracteze int. 3-4; perianthia 1:0 x -2™™, Minutissima virescens, strato tenui effusa. Caules 5-10™™ longi fili- formes flexuosi, parum et substellatim ramosi, trigono-prismatici (supra plani, subtus carinati), cellularum seriebus 5 conflati ; cellule corticales vacue pellucidee, antice biseriate magne spheric (pres- 392 CEPHALOZIA. [zoopsis, sione mutua angulatee) postice biseriate anguste rectangulari- oblong, axiales uniseriate tenuissimee chlorophyllose subopace. Rami omnes caulis facie postica orti, alii flagellares radicellosi subaphylh. Folia cellulis caulis binis dissita, distiche patentia, insertione exacte longitudinalia, cellulis solum 2, suprapositis (rarissime 1 vel 3) con- stantia; cellule pellucide parce chlorophyllose, inferior magna truncato-conica, superior 4plo minor incurva unguiformis, basi constricta. Flores monoici: @ postici (ramulo brevissimo constantes). Bractez 1-2-juge 3-stichee, perianthio subtriplo breviores, liberee connateve, profunde bipartite, sinu obtuso, laciniis subulatis elongato-cellulosis. Perianthia pro plantula maxima, foliis caulinis 16plo majora (!) trigono- subulata, ore profunde 6-fida, laciniis ciliiformibus. Calyptra parva tenuis. Capsula oblenga. Rami ¢ ceteris ramis eequilongi, assurgentes: bracteze plurijuge secunde confertee suberectze subulate, cellulis 5-6 constantes, integre bifideeve, monandre. Bracteolas nullas vidi. Obs. The leaves never want the terminal minute hooked cell, which is very mostly imposed on a truncato-conical cell of four times the size, these two cells constituting the entire leaf. But sometimes there are two (in lieu of only one) basal cells, and then the leaf becomes subulate. This brings it into relation with C. micromera, whose leaves (consisting of about ten cells) sometimes lose one of the two apical teeth, and thus from bifid they become entire and subulate; but in other respects, and especially in the inflorescence and the structure of the stem, they stand widely apart. The long filiform leaves, or leaf-crura, of Arachniopsis forbid the placing of C. monodactyla in that genus, although it obviously approaches it. Subgenus IV. ALOBIELLA, Spruce, op. cit. (1882). Plante mediocres albicantes, facie (nisi pro foliis succubis) magis Kantie quam Cephalozie. Caulis postice ramosus, ramique foliosi—raro flagellares. Folia fere longitudinalia, distiche patula, plana, integra— vel alia integra, alia apice bidentella—laxe pellucide reticulata ; cellule majuscule magneve, subrectangulares, duplo longiores quam late. Foliola aliis speciebus prsentia, parvula, integra et bifida. Flores 9 cladogeni; in unica specie acrogeni. bractee profunde bifide ; in unica C. acroseypha solum breviter 2—4-fide. Perianthia elongata, ab ipsa basi trigona, ore breviuscule fissa. Andracia vel spicata vel ad amenta postica redacta. § 1. Foliola nulla. 4. U. integrifolia. Dioica cladocarpa albicans nitens prostrata flagellifera. Folia fere longitudinalia subcontiguaoblonga rotundatasubtruncatave, rarissime apice bidentella, cellulis magnis oblongis. Br. bipartite, laciniis subulato-attenuatis. Per. alte emersa_lineari-subulata trigona, ore breviter trifida, segmentis apice 2—3-ciliatis. 5. ©. macella. Monoica, facie C. bicuspidate formis macrioribus valde similis, distincta foliis planis ovato-triangularibus-trapezoideisve, apice rotundatis, retusis, oblique acutis (i.e. unidentatis) vel deni ue truncato-bidentatis, cellulis elongatis; bracteis bifidis, segmentis longe subulatis; per. ore breviuscule trifidis, segmentis 2-3-ciliatis. ALOBIELLA. | CEPHALOZIA. 393 § 2. Foliola foliis adjecta. 6. C. acroscypha. Dioica acrocarpa pusilla tenerrima prostrata flagellifera. Folia subimbricata subplana ovato-oblonga-lanceolatave obtusata— raro retusa vel apice 2-3-crenata—cellulis majusculis elongatis. Foliola parva—superiora increscentia—subulata integra bifidave. Br. emarginato-2—-4-fide. Per. obtuse trigona, ore breviter 3-6-fida edentula. 7. Husnoti. Dioica cladocarpa, a basi procumbente flagellifera erecta ; ramis fastigiatis, apice in sicco sepe hamatis. F. contigua patula plana lanceolata subacuta—rarissime bidentula, cellulis majusculis elongatis. F'* duplo breviora, linearia, ultra $ bifida. Br. carinate, ad } bifid, subdenticulate. Per, triquetro-prismatica, ore setulosa. 4, CEPHALOZIA INTEGRIFOLIA, Spruce. Hab. In sylvis umbrosis fluvii Negro, supra cataractas, et fluvii Uaupés ubi in truncis prostratis putrescentibus, rarius ad aggeres umbrosos inter muscos, viget; etiam in Andibus Peruvianis super M. Cam- pana, alt. 1000™. F -4x°3 (in pil. sterili *8x°5); cellule ¥—)5; br 16x'6; per 25x 4, 30 xX 5", Majuscula albido-viridis, margaritaceo-nitens, strato tenui late effusa. Caules 14-pollicares prostrati tenues subramosi, supra subplani, subtus conyexi, strato corticali pellucido induti; cellule corticales 9-10-seriate compresso-cylindrice, interne 10-12-seriate triplo angustiores, sectione zequilateree. Rami omnes postici, alii flagelli- formes subaphylli radicelliferi. Folia vel dissita, vel subimbricata, vel szpissime valvatim contigua, longitudinaliter, vel (basi antica longius decurrentia) parum oblique inserta, oblonga rhomboideave, apice rotundata vel suboblique trun- cata, rarissime rudimentarie bidentata; inferiora superioraque sepe sensim minora (unde rami elongato-lanceolati fiunt); cellule magne oblongo-hexagonz leptodermes pellucide. Flores dioici: ¢ postici, ramo brevi constantes. Bractee 3-4-juge, intime variabiles, foliis 2-4plo longiores, lanceolate, ad 4 bipartite, basin versus angulatze, laciniis a basi late subulata longe sensimque attenuatis. Perianthia bracteas alte superantia, lineari-subulata-lanceolatave, trigona, ore breviuscule trifida, segmentis bi-trifidis, laciniis ciliiformibus inequalibus. Capsula oblongo-cylindracea, duplo longior quam lata. Amenta ¢ ramulo parvo constantia, albida, raro rami foliosi basin apicemve tenentia; bractee plurijuge conferte assurgenti-secunde parvee subquadrate emarginate, utroque apice cellula unica magna seepe apiculate, monandre. Obs. Plante foliis ex parte in frondem pinnatifidam plus minus alte connatis rarissime adveniunt.—Folium incubwin inter normalia succuba interpositum aliquando invenitur. Ceterum, nostra plantula, quoad aspectum, Calypogeiam (Kantiam) potius quam Cephaloziam refert. 5. CEPHALOZIA MACELLA, Spruce. Hab. In sylva Amazonica, prope Santarem, ad fl. Tapajoz ostia, super ligna putrescentia in palude; etiam ad San Carlos del Rio Negro. 394 CEPHALOZIA. [ ALOBIELLA. F 30x20, °25x'15; ¢ >;-yy; br 10x35; per 23x35; andrecia 18; br ¢ 3™ Magnitudine C. bicuspidate, viridis, albicansve, tenuis, tenerrima, pro- strata laxe intricata. Caules pollicares flexuosi ramosi radicellosi, raro flagelliferi, inferne, vel hic illic, suabaphylli. Folia subcontigua explanata oblique ovato-triangularia-trapezoideave, apice vel oblique acuta (ie. unidentata), vel rotundata, vel retusa, vel denique truncato-bidentata; cellule majuscule leptodermes elongate, rectangulari-hexagonz, subchlorophyllose. Flores monoici: @ postici, ramo brevi triquetro constantes. Bractez 3-juge, foliis 3-4plo longiores, intime ultra medium acute biloba, segmentis longe subulatis acutis integerrimis. Perianthia prelonga, foliis caulinis 8plo longiora, angusta fere linearia, ab ipsa basi trigono-prismatica, ore breviuscule trifida, segmentis in cilia 2 vel 3 fissis. Andrecia ramum totum vel ex parte tenentia; bractez foliis subequi- long vel sat minores, plurijugee, conferte, assurgenti-secunde, ad 4 fere bifida, sinu acuto obtusove, segmentis subulatis erectis. 6. CEPHALOZIA ACROSCYPHA, Spruce. Hab. Andes Peruvianos, in declivibus arenosis umbrosis montis Guay- rapurina, socia Cephalozia Husnoti (G.). F 35x18; ¢ 33 ft 2x08; br 8x °55; per 12x°4; cal 35; caps GI n ox Laon Pusilla pallida tenerrima; caules 3-pollicares prostrati, hic radicellis fasciculatis, illic flagellis albidis, matrici adfixi, divaricato-subramosi, ramis posticis. Folia subimbricata late patula subplana, pellucida, ovato-oblonga-lance- olatave obtusata, raro retusula apiceve 2-3-crenata ; cellule majus- cule elongate subrectangulares, limitibus validis non autem incras- satis, intus annulo endochromii perangusto cincte, subplane. Foliola foliis fere duplo breviora subulata lineariave 4-5 c. longa, 1-3 ¢. lata, interdum bifida, haud raro amorpha obsoletave; superiora tamen increscentia sic uti in floris @ vicinia foliis solum paulo minora evadunt. Fl. dioici: Q in caule ramove elongato terminales, innovatione nulla suffulti; bracteze sub 3-jugee, exteriores in folia caulina normalia sensim transeuntes, intimz foliis 2plo longiores quadrato-oblonge apice inequaliter emarginato-bifide-quadrifideve; bracteola aqui- magna conformis magis symmetrica, cum bracteis subconnata liberave. ~ —- Pistillidia 20. Perianthia, alte emersa, foliis 3-4plo longiora, 3plo longiora quam lata, lineari-oblonga obtuse obscureque trigona, ore vix subconstricto, 3-4 fida, segmentis brevibus inzequilongis obtusulis. Calyptra 4plo fere minor pyriformis tenerrima, swpe basi cireumscissa et cum capsula in pedicello longo alte exserta. Capsula calyptra vix brevior, oblonga vel oblongo-globosa, vix longior quam lata, ad basin usque 4-valvis. Amenta pl. ¢ caulis ramive apicem tenentia; bracteee plurijuge, foliis paulo minores, magis erectze, a basi ad medium lobulo antico angusto ineari inflexo aucte, l-andre. Bracteola adsunt. Obs. Perianthium superne trigonum, angulo tertio postico nec antico ac in Jungermania; basi et perpaulo altius 3-2 cell. crassum, superne tenue. ALOBIELLA. | CEPHALOZIA. 395 7. CepHatozia Husnott (Gottsche). Jungermania Husnoti G. in Husnot. Hep. Antillarum Exsice. (1868). J. lancifolia nob. in hb. (1855). Hab. In M. Guayrapurina Andium Peruvie ad vias cavas, alt. 1000™ (R. 8. Julio, 1855). Ins. Martiniea (Husnot. pl. ¢). F -8x°3 (18 cellulas longa, 14 lata); ¢ Js—sh longe, 7, late; f* -4x°1, 35 X ‘1; per 1:0 x *5™™ (juvenilia). Late czespitosa flavo-viridis pellucida. Caules 3-pollicares, basi ipsa aphylla radicantes, dein decumbentes foliosi radicellosique, demum ascendentes suberective arhizi, flagella tamen valida e parte inferiore demittentes, vage subfastigiatim, raro subpinnatim v. flabellatim Tramosi, ramique siccando szepe apice incurvo-circinati, omnes (quoad insertionem) postici. Caulis parum compressus, fere teres; stratum corticale e cellulis 8-seriatis magnis pellucidis; cellule interne sub 8-seriatee angustiores, in caulis sectione annulos indistinctos efformantes. Folia plurijuga, paulo imbricata vel solummodo contigua, subassurgentia (siccando seepe inflexo-secunda), patula (axi angulum sub 70° cum caule efformante) oblique inserta, succuba, suboblique lanceolata subacuta, integra integerrimaque, repanda, rarissime apice biden- tula; cellule majusculee, duplo longiores quam latze, fere parallelo- gramme, planz, subleptodermes, parum chlorophyllose. Foliola foliis duplo breviora, linearia, caule angustiora, appressa, integra v. sepissime ultra medium bifida, laciniis erectis subulatis ineequi- longis. Flores dioici: Q ramulo brevi postico constantes. Bractez sub 5-jugee, extimz minut squamiformes, intimee foliis sublongiores, liber v. seepius inter se alte connate, ad 4 bifid, laxe complicate carinate, laciniis lanceolatis acutis recurvulis, medio margine utrinque angu- latze v. grosse subdenticulate; bracteola bracteis subzequalis minus complicata. Br. externze sensim minores, ovate, integrze, bifidulzeve, arcte imbricatze. Perianthia (valde juvenilia) triquetro-prismatica ore truncato subsetulosa. Pistillidia plurima (20++). Species maxime singularis, perbella, facie fere Schistostege ! Subgenus V. HU-CEPHALOZIA, Spruce, op. cit, (1882). Plante mediocres, raro pusille vel robustze, virescentes, rarius fulvee lurideve, interdum roseo pictee, Caulis plerumque mollis et fragilis, rarius rigidulus, in planum simplex vel rarissime: furcatus, postice plus minus ramosus, in paucis flagellifer. olia oblique inserta, seepe sat magna et lata, concava vel laxe complicata, margine integerrima, apice bifida; cellule pro m. majuscule, pellucidz, quadrato-hexagonz quadra- teve, sublevissimz. oliola (paucis sp. normalia) parva, integra bifidave. Flores dioici vel monoici, 2 in aliis speciebus constanter cladogeni, in aliis nunc clado-nune acrogeni; vel omnes fere acrogeni nec raro in ipso caule terminales. Bractew intime sat magne, 2—4-fidee, integerrime vel perszepe dentate, spinulose inciseeve. Perianthia fusiformia—interdum fere linearia—trigono-prismatica, ore constricto denticulata, setulosa, ciliata vel laciniata. Capsula plus minus oblonga, ceteraque ac in 396 CEPHALOZIA. [ EU-CEPHALOZIA. prioribus subgeneribus. Andrecia spicata vel amentiformia, varie posita ; rarissime tamen hypogyna, bracteis ¢ scil. florem femineum proxime sequentibus. § Foliola caulina presentia. 8. C.micromera. Dioica cladocarpa minuta prostrata flagellifera. Caulis plano-convexus, cellulis corticis 6-seriatis, internis 4-seriatis, con- flatus, subramosus. F. subimbricata cuneato-quadrata ad $ acute bifida vel integra; segmentis subacuminatis, antico minore (sepe deficiente). #4 ad tuberculum cellulé unica, vel 2 collateralibus, constantem redacta. Br. bipartite, laciniis lanceolato-subulatis, altera interdum obsoleta. Per. magna ovato-subulata obtuse trigona, ore in lacinias tenui-subulatas profunde fissa. 9. C. Serra. Dioica cladocarpa eflagellifera. Caulis plano-convexus, cellulis corticalibus 6-seriatis, internis 5-seriatis, conflatus, sub- ramosus. F. contigua plana ovato-quadrata breviter bifida, sinu acuto Iunatove, apicibus rectis acutis. F' foliis 3plo breviora oblato-quadrata emarginato-truncata. Br. ultra $ bifidee, laciniis lato- subulatis. Per. magna subulata superne obtuse tricarinata, ore 6-fida, laciniis capillaceo-acuminatis. § 2. Foliola (preter ad florescentias) normaliter nulla. 10. C. Crossii7. Monoica, formis C. bicuspidate tenellis primo visu sat similis, diversa autem flagellorum defectu; foliis angustioribus ultra 3 bifidis, laciniis lanceolatis tenuiacuminatis; preesertim perianthio ore ciliis 7-8 cellulas longis insigniter fimbriato. ll. C. forficata. Dioica, C. conniventi Dicks. proxima, distincta foliorum sinu orbiculari, segmentis falcato-incurvis apice tenui fortficatis ; bracteis solum bilobis, liberis; perianthio cylindrico tereti, apice solo obsolete 3-vel 6-plicato, ore longiciliato; denique florescentia. 8. CEPHALOZIA MICROMERA, Spruce. Hab. San Carlos del Rio Negro, in terra umbrosa humida. Rami 1-2™™ longi; f 15x'1; c gk; br ‘5-7; per 1x4; caps 35x “alisjah Minuta prostrata viridis; caules 3-4™™" longi, intricato-ramosi, interdum subpinnati, radicellosi, parum flagelliferi, saepe autem apice elongati vermiculares dissitifolii vel fere nudi; supra plani vel concavi, subtus convexi; cellulis corticis 6-seriatis majusculis pellucidis, axis 4-seriatis parvis subopacis. Folia subimbricata contiguave, basi obliqua (angulo sub 45°) inserta, subpatentia, cuneato-quadrata, ad medium acute bifida, segmentis subacuminatis acutis, antico minore, seepe minuto, vel omnino nullo (quando folium triangulare acuminatum evadit); cellule subglobosa vel parum elongate, mediocres, cujusque folii circiter decem. Foliola ad tuberculum rhizinophorum, cellula unicé (raro 2) constans, redacta. Flores dioici: 9 ramulo brevissimo constantes. Bractee trijuge tris- tichz, intimz foliis 4plo longiores erecto-appressee bipartite, segmentis lanceolato-subulatis integerrimis; una alterave bractea (postica precipue) sepe integra, nec bifida. Perianthia alte emersa tenera ovato-subulata obtuse trigona incurva, EU-CEPHALOZIA. | CEPHALOZIA. 397 ore parum constricto 6-laciniata, laciniis subulato-attenuatis. Capsula 5plo brevior, anguste ovalis. Amenta ¢ ramum totum tenentia; bractez plurijuge, foliis equi- magne, magis conferte, erectiores, segmentis longioribus ; bracteole rudimentariz. C. monodactyla S., foliis minutissimis, ad cellulas 2 (raro 3) redactis ; eaule cellulis solum 5- (nec 10-)seriatis conflato ; denique florescentia monoica differt.—C. pygmea S., florescentia monoica ; foliis distantibus, semper profunde bifidis, segmentis subulatis; cellulis duplo vel fere triplo minoribus ; bracteis denticulatis spinulosisve bene distincta. 9. CEPHALOZIA SERRA, Spruce. Hab. Panuré fluvii Uaupes, supra ligna in humidis ; etiam ad fl. Negro cataractas in “ caatingas.” Sx 3; f* 1 x 125; c 3 Or. mt. 15 x 15; per 30 x -5™™, Cespites lati implexi, e viridi olivacei. Caules prostrati semipollicares vage ramosi, ramique semicylindrici, supra plani 2 cellulas lati. Stratum corticale caulis e cellulis 6-seriatis majusculis pellucidis formatum, seriebus nempe 2 anticis, 4 posticis; cellule interne minores, in series 5 longitudinales disposite. Folia longitudinaliter inserta, plana, exacte contigua v. perpaulo imbricata (itaque frondem continuam margine serratam simulant), ovato- quadrata, 7 cellulas longa, 8 cellulas lata, breviter bifida, sinu acuto lunulatove, apicibus rectis acutis ; cellule subzquilatere, 6-gone v. subquadrate. Foliola parva subsquarrosa, foliis 3plo breviora, oblato-quadrata emar- ginato-truncata, seepe ad limbum vix conspicuum redacta vel etiam obsoleta. Flores dioici : rami ? breves basi dense radicellosi. Bracteze sub 3-jugze, intime (2 laterales) foliis 5plo majores, appressee, cuneate, ultra medium bifid, laciniis lato-subulatis, integerrimz vel utrinque medio margine angulate, elongate cellulose ; intermedia (bracteola) paulo brevior ; br. 3 extimze minute emarginate ; 3 mediz magni- tudine formaque intermediz. Perianthia bracteis duplo longiora, subulata v. fere linearia, saepe hamata, superne obtuse triplicata, ore 6-fida, laciniis capillaceo- acuminatis. Capsula oblonga, vix duplo longior quam lata. Plante g amenta ramos fere totos occupantia; bractee plurijuge, foliis concolores, vix minores, subtransverse, conferte, secunde, monandre, subquadrate, sinu triangulari fere ad medium bifid, concave, nonulle lobulo antico dentiformi aucte, monandre v. sepissime vacue. Adveniunt etiam (sed rarius) amenta postica parva albida, bracteis paucijugis teneris monandris. 10. CEPHALOZIA CrRossit, Spruce. Hab. Andes Bogotenses, in rivuli arena juxta Popayan. Legit Ros. Cross, a. 1877. Ejusdem Cephaloziw, ut videtur, caules perpaucos steriles, cum Jungermania heteracria S. mixtos, prope Tarapoto, a. 1856, legi. Formis C. bicuspidate L. minoribus sat similis differt stolonibus nun- quam aphyllis et radicantibus; foliis angustioribus ultra 4 bifidis, segmentis lanceolatis sensim tenui-acuminatis—vel antico angustiore 398 CEPHALOZIA. [nU-CEPHALOZIA, subulato, cellulis paulo angustioribus, 3,-35™™ longis ; bracteis semper solum bifidis fere integerrimis; perianthiis lineari-oblongis obtuse trigono- prismaticis, ore truncato hiante vel subconnivente longiciliatis, ciltis ad 7-8 cellulas longis ; capsula breviore, oblonga vix subcylindrica. Cxespites densi intricati olivaceo-virides. Rami fertiles interdum elon- gati. Flores monoici: androecia medio caule ramove posita, foliis caulinis consecutiva, lis C. bicuspidate conformia. 11. CEPHALOZIA FORFICATA, Spruce. Hab. In Andibus Peruvianis, alt. 1000-1300™, in ipsa terra supra M. Campana, in lignis putridis M. Guayrapurina. F ‘55 x °5 (basi) x *4 (ad sinum); ¢ sy-q53 br 8 x 6; per 2°0-2°5 x 65, cilia, 52". Pusilla pallide viridis prostrata, post siccationem difficillime emollitura. Caules pollicares flexuosi vage subramosi radicellosi eflagellares, compressi biconvexi, sectione ovali; cellule 3-strate, extime (corticales) sub 8-seriatee, interiores duplo angustiores, strati sub- corticalis 8-vel 7-seriatee, axiales circiter 5-seriate. Folia basi lata fere longitudinali inserta, antice decurrentia, contigua vel leniter imbricatula, patula plana, suboblique oblongo-rhombeove- rotunda, apice ad } altitudinis usque emarginato-bidentata, sinu lunari vel sepius orbiculari, dentibus falcato-conniventibus, apice tenui peracuto conniventi-contiguis vel etiam forficato-imbricatis ; cellule majuscule subzequilaterze crassiusculee leptodermes, fere vacue, marginales (anticee preecipue) ceteris submajores, apicales minute conice. Flores divici: @ in ramo perbrevi terminales. Bracteze trijugee tri- stichee, intimze multo majores, folia caulina dimidio excedentes, sub- appresse, liber, oblong, ultra medium bilobie, segmentis sensim acuminatis, laterales hinc, media (bracteola) utrinque medio margine dente obtuso auctee. Perianthia alte emersa, bracteas triplo superantia, cylindrico-tubulosa, apice solo obsolete 3-vel 6-plicata, ore abrupte constricto longiciliata ; ciliis longitudine foliorum caulinorum, cellulis 3 vel 4 uniseriatis linearibus, constantibus. Andreecia rami medium apicemve tenentia; bracteze foliis subminores plurijugie erecto-appressee concavo-canaliculatee ad medium bifide, segmentis subacuminatis, monandre. Adveniunt plerumque bracteole parva, lineares amorpheeve, cellulis sub 6 biseriatis con- stantes. Jung. Sandvicensis Mont. (=J. crassifolia L. et G.) differt a C. forficata rigiditate, foliis ad 4 usque bilobis, lobis tenui-acuminatis pungentibus fere constanter strictis (nec conniventibus) ; perianthiis brevioribus tota fere longitudine obtuse trigonis, ore 12-ciliatis. “ Jungermania connivens Dicks.” (in Hookeri icone: Brit. Jung, tab. 15) cum nostra convenit perianthio longiciliato et foliorum sinu late lunulari ; insigniter discrepat autem florescentia monoica; bracteis connatis et digitatim $-5-fidis, et perianthiis anguste obovatis ; necnon foliorum segmentis (dentibusve} latioribus apice conniventibus nunquam tamen contiguis nec forficatis. Jungermania multiflora Spruce. (= J. connivens Dicks.” auctorum omnium fere recentiorum) folia habet minora, magis orbiculata, sinu CEPHALOZIELLA. | CEPHALOZIA. 399 obtuso raro lunulari, segmentis conniventibus suberectisve, latioribus (antico basi 2—3-cell., postico 3-5-cell. lato), cellulis paulo minoribus ; bracteas foliis 3-4-plo majores sepe in excipulum alte connatas ; perianthia lineari-oblonga, ore solumdenticulata setulosave, setulis 1 vel 2 cellulas parvas constantibus. Subgenus VI. CEPHALOZIELLA, Spruce, in op. cit. Plante pusille minutve, seepe supra muscos, vel alias hepaticas reptantes. Caulis pro plantula seepissime validus, cellulis corticalibus internis homomorphis, basi in plerisque subrhizomatosus, flagellis autem orbatus; rami foliost in omnibus fere postici, in perpaucis ex parte—in paucissimis normaliter—laterales. Folia inferiora succuba, superiora magis conferta et transversa, caulis latitudinem raro excedentia, perseepe cuneata, ad vel ultra 4 bifida, carinata, segmentis vel subcomplicatis vel divergentibus, integerrima subdenticulatave, raro spinulosa; cellule parve vel minute (diam. 4;—75™™) subquadrate. oliola (ubi adsunt) parva, integra bifidave, seepe in una et eadem specie nunc preesentia nunc obsoleta. lores 2 perseepe in ipso caule terminales, in aliis sp. cladogeni vel situ variabili. Bractew sat magne, tristiche, bilobze, lobis in plerisque denticulatis spinulosisve, laterales perseepe cum postica in cyathum alte connate. Perianthia plerumque angusta, acute prismatica, carinis raro solum 3, sepius 3, 4, vel 5 (raro etiam 6) in eadem specie, ore denticulato raro mutico. Capsula oblongo-globosa. Andrecia ipsius caulis, ramive majoris, partem sistentia, medialia apicaliave, bracteis foliis consecutivis haud minoribus, rarissime ad ramulum tenuem amentiformen redacta. 12. CEPHALOZIA PYGMA, Spruce. Hab. Andes Peruvianos in M. Campana, ad terram umbrosam, alt. 1200. F -1—125™™ longa, bast 4 cell. lata; ¢ A>y—-dy; br °3; per 8x 2mm, Minuta fuscidula prostrata; caules 4™™ longi, vage subramosi, tenues opaci flexuosi parum radicellosi, flagellis nullis. Folia distantia, a basi plus minus obliqua v. fere transversa, subsquar- rose patula, plana, cuneata, profunde bifida, sinu acuto (30°-40°), eruribus subulatis subacutis basi 2 cell., apice 1 cell., latis, integer- rima; cellulz minute subparallelogramme subchlorophyllose, lepto- dermes. Foliola nulla, nisi ad involuera. Flores monoici: 9 ramulo brevi tristiche folioso constantes, seepe e rami 6 facie postica orti, haud raro fasciculato-2-3ni; bracteze 3-jugee liber v. sepius alte coalitee, intime foliis fere 3plo longiores, ad dimidium solum bifid, laciniis acuminatis recurvis, subdenticulate. Perianthia alte emersa, magna, lineari-trigona, 4plo longiora quam lata, ore subconstricto setoso-denticulatia demum breviter 6-fida. Amenta ¢ caulis ramive apicem mediumve tenentia; bracteze foliis con- tinue, iisdem similes, paulo breviores latioresque, plurijuge, assur- genti-imbricatee suberectze conduplicato-concave, monandre; brac- teolis minutis subulatis adjectis, Raro advenit amentum ¢ ad ramulum parvum redactum, Var. spinuliflora 8. Folia sublatiora, lobo antico basi seepe 4 cellulas, postico 3 cell., lato, integerrima vel dente uno alterove obtuso armata. Bractee ad 4 usque connate, spinuloso-serrate, viridissimee.—In sylva Amazonica, ad fl. Uaupés, in Lejewnea porelloide parasitans. 400 CEPHALOZIA. [ opONTOSCHISMA. Obs. A C. divaricata certe distat minutie, florescentia monoica, foliorum segmentis perangustis, etc. Subgenus VII. ODONTOSCHISMA, Dumort. (genus). Recueil, (1835); Lindberg, Not. F. et F. Fennica (1874) ; Spruce, Journ. Bot. (1876) et Tract. de Cephalozia (1882). Plante sat robust, virides luridesve, interdum rosez, raro albide, in plagas latas unistratas arcte intricatas effusee, vel super muscos palustres reptantes iisdemque persepe in cespitem densum implexe. Caules validi subteretes, vel prostrati vel per saltus arcuantes et a matrice liberi, ad nodos descendentes ope flagellorum radicantes; ramis foliosis posticis, cauli conformibus. Cellule in caulis diametro sub 8, corticales 20-22- seriate internis conformes et concolores. Folia basi diagonali vel fere longitudinali inserta, late ovata vel suborbiculata rotundata, retusa, vel rarius emarginata, pro m. concava et integerrima; cellule mediocres— minutule, equilatere, cuticula plerumque scaberula. oliola vel nulla vel minuta et rara. Flores 2 cladogeni; bractew tristiche, bifide, raro 3-4-fide. Perianthia magna angusta, ore ciliata denticulatave, interdum clausa et rima lateralidehiscentia. Capsula cylindrico-oblonga caeteraque omnia Hucephalozie. Andrecia amentis parvis albidis posticis constantia, rarissime robustiora et terminalia. § 1. Flores dioict. 13. C. Sphagni. Dioica, caule elongato subzequifoliato, ope flagellorum arcuato-radicante, ramis gemmiparis nullis. F. patula vel secunda, ovato-rotunda-oblongave, rotundata retusulave subconcava opacula, cellulis mediocribus. F!* nulla vel perrara, minuta ovata integra bifidave. 14. C. denudata. Priori proxima, subminor. Caulis basi subaphyllus, rhizomatosus, flagella villosissima demittens, deinde subramosus, ramique alii arcuati, utroque fine parvifolii, alii erecti superne sensim minutifolii et gemmipari. F. late ovata subpellucida. F'* ubique obvia, ad ramos gemmiparos superne increscentia, late ovalia integer- rima v. subdenticulata. § 2. Flores monoict. 15. (. obcordata. Humilis cladocarpa eflagellifera, caule elongato pro- strato subramoso. F. parva, fere longitudinalia, subcontigua plani- uscula obcordato-rotunda, cellulis minutulis. Andreecia postica amentiforma, subramosa, axi primaria sola mascula, aliis ramulis femineis, aliis neutris. 13. CEPHALOZIA SpHAGNI (Dicks.), Spruce. Jungermania Sphagni Dicks. Crypt. Brit. (1785); Hook. Brit. Jung. t. 33, ex p.—Sphagnoecetis communis v. vegetior Nees in Syn. Hep.— Odontoschisma Sphagni (Dicks.) Dum.; Lindberg Not. Soc. F, Fl. Fenn. (1874); Spruce, Journ. Bot. (1876). Hab. In ericetis turbariis totius Europze Americzeque borealis temperate, Sphagnis et precipue Lencobryo glauco irrepens. In sylvis um- brosis humilioribus fl. Amazonum, precipue secus ejus tributarios ODONTOSCHISMA. | CEPHALOZIA. 401 boreales, Rio Negro, Trombetas, &c., necnon per totam regionem graniticam fluminum Orinoco, Casiquiari, Uaupes, &c., ad arborum pedem radicesque exsertas, raro ad truncos putrescentes, seepe aliis hepaticis muscisque consociata easdemve infestans. egoueeGs, “Ox "7 3 6 ge 3 Or. mnt. “8x 35, 11 x"bs per 23x "7, 2:5 x5, 2°0x°4; cal 1:0x°5 ; caps. valv 8x ‘25-3; br g 4x -Q™™ Prostrata, in plagas latas tenues effusa, vel super muscos palustres reptans, viridis, albescens roseave. Caules pollicares longioresque, tota fere longitudine zquifoliati, basi ipsa radicellis sepeque flagellis radi- cantes, postea sursum arcuantes matriceque liberi, flagello demisso (raro 2 v. 3) iterum iterumque radicantes arcuantesque ; e facie postica ramos equifoliatos, seepe subdivisos, paucos—parvifolios gemmiparos nullos—emittentes ; caeterum plus minus radicelliferi, raro arhizi. Flagella sat valida alba flexuosa omnino aphylla, radicellis trichoideis sparse densiusve vestita. Folia arcte (ad 4) imbricata, plus minus patentia vel seepe assurgenti- secunda, basi subobliqua, longitudinali fere, inserta, antice perpaulo decurrentia, suboblique ovato-rotunda vel late ovato-oblonga, rotun- data raro truncato-retusula, e margine toto incurvulo subconcava, cellulis incrassatis marginata, integerrima ; cellulze mediocres rotundo- hexagonee v. subquadratee, ad angulos incrassatz, minutissime verru- culos, ex endochromio copioso opace, solum ipso centro pellucide, foliorum vetustorum evacuate. Foliola preminuta, ad squamulam ovatam integram bifidamve redacta, hic illic sed preecipue ramorum apicem versus obvia, seepe tamen obsoleta nullave. Flores dioici, postici. Ramuli ¢ breves tristichophylli; bractez subtri- juge, interiores sensim majores, arcte imbricate, apice recurvule cuneato-oblongz, fere ad medium acute bifide, laciniis subine- qualibus acutis integerrimis, oblongato-pellucido-areolate (aliorum florum tamen magis opacze); bracteola intima sepe basin versus dente lobulove aucta, czeterum bracteis conformis. Perianthia foliis caulinis triplo longiora, albida subroseave, anguste fusi- formia subulatave, seepe subfalcata, obtuse trigona triplicataque, ore denticulata vel subciliata, vel valvatim vel (rarissime) circumscissim rupta. Calyptra perianthio plus duplo brevior, pyriformis, vel latior et obovato-globosa, tenuissima, cellulis unistratis valde inzequilateri- 3-7-gonis pellucidis areolata, apice demum rupta laceraque, basi pistillidiis sterilibus ad 20 obsita. Capsula calyptra paulo brevior, pedicello elongato suffulta, cylindrico- oblonga, ab ipsa basi 4-valvis valvulis inequilatis rufo-badiis validis. Amenta mascula e caulis facie postica, basin mediumve versus orta, tenuia, albida, pellucida, incurva circinnatave. Bractez 10-12-juge, arcte imbricate, apice tamen patule, subsecundz, ovato-oblonge- ligulateve, cymbiformi-concavee, ad j acute bifid, segmentis obtusis. Antheridia solitaria magna globosa brevipedicellata, demum a basi ad apicem usque hine hiantia. Bracteole ubique obvie, bracteis duplo breviores lineari-ligulats, apice bispinulosee.—Unicum ex- emplum inveni caulis primarii apice in spicam masculam robustam viridem commutati ! Var. Europea: perianthiis apice valvatim dehiscentibus, valvulis (sub 6) plus minus incisis ciliatisque. Var. Amazonica : perianthiis apice integerrimo v. parum fimbriato con- 402 CEPHALOZIA, [ODONTOSCHISMA. niventi-clausis, pro capsulz emissione rimainfra-apicalidehiscentibus, raro circumscissis v. valvatis. 14, CEPHALOZIA DENUDATA (Mart.). Jungermania scalaris B denudata, Mart. Fl. Crypt. Erlang. (1817) ; Pleuroschisma (Odontoschisma) denudatum Dum. Syll. Jung. Eur. (1831) ; Jungermania Sphagni Hook, Br. Jung. Suppl. t. 2; Odontoschisma denu- datum (Mart.) Lindberg, Not. Soc. F. Fl, Fenn. (1874); Spruce, Journ. Bot. (1876). Hab, Ad arbores excisas et truncos prostratos putrescentes, rarius in ipsa terra turfosa saxisque vel in muscis reptantes, in montibus humi- lioribus totius fere Europe et Americze borealis, in Andibus rarissime (vide infra). F 85x ‘8; ¢ qh; f@ superiora 5 x°4; br'4 int. ‘9°55 per 24x -5™™ Ceph. Sphagni primo visu sat similis, paulo humilior, perseepe rubescens, colore magis in purpureum vel etiam in violaceum vergente (nec rubro-miniato sicut in 0. Sphagni). Caudex breviusculus, prostratus aphyllus, totus intricato-ramosus radicellosus, insuperque flagellis validis radicellis villosissimis matrici adfixus. Caules vix pollicares assurgentes arcuantes, arhizi, rarissime apice flagelliformi radicantes, subramosi ; rami seepe fasciculati, alii (normales) caulesque basi plus minus aphylli deinde, foliis ad medium usque sensim crescentibus, apicem versus simili modo decrescentibus, vestiti, ex quo rami (semper oligophylli) ambitu lineari-lanceolati evadunt ; alii rami erecti superne sensim parvifolii apice gemmipari. Folia eadem fere forma ac O. Sphagni, oblique late ovata vel ovato-rotunda, raro retusa subemarginatave, antice obscure decurrentia, subconcava, assurgentia—non tamen secunda ad O. Sphagni instar—pellucidiora ; cellule fere eadem magnitudine magis tamen incrassatee, cavitate minore ambitu distincte 6-sinuata, endochromio parciore, externe parum verruculose. Folia surculorum gemmiparorum suberecta subrotunda, apice varia, rotundata, subacuta, erosave. Foliola ubique fere obvia, ad caules minuta ovata squameformia, ad surculos gemmiparos insigniter aucta, superiora foliis adjectis wquimagna—siepe foliis caulinis mediis vix duplo minora—ovali- rotunda, subintegerrima. Flores dioici, iis O. Sphagni parum diversi, bractez fl. 9 intimee foliis mediis sequilonge, apice recurvo-squarrosie, bifidse, integerrimee v. denticulatie. Perianthia foliis 3-plo longiora, anguste fusiformia, trigona, pallida seepe infra medium purpureo-zonata, apice conniventi-clauso breviter fimbriata, demum irregulariter rupta, cellulis elongatis pachy- dermibus leevissimis conflata. Calyptra plus duplo brevior, pyri- formis, tenuis, demum bilabiatim rupta, basi et perpaulo altius pistillidiis sterilibus cireumdata. Capsula..... Amenta ¢ in planta propria, e caulis facie postica orta, albida tenera julacea, subrecta decurvave, nunquam circinnata ; bracteee pauci-vel seepe multi-(ad 20-) jug, iis O. Sphagni sat similes. Var. andina. Pulchre roseo-purpurea, sterilis. Cum planta Pyrenaica bene convenit, solum differt foliolis seepe apice erosulis v. etiam bifidulis biciliatisve. Ad surculos gemmiparos assurgentes folia ODONTOSCHISMA. | CEPHALOZIA. 403 superiora sensim minora, foliolis subrotundis vix majora, lis plantee nostratis accurate convenientia. Hab. M. Campana Andinum Peruvianorum, ad terram humidam sub Ericearum umbra, sociis Jungermania heteracria, Spruce, et Sphagno Peruviano, Mitt—In Andibus nusquam alibi—in planitie Amazonica nullibi—inveni. 15. CEPHALOZIA OBCORDATA, Spruce, op. cit. (1882). Hab. in arborum imis truncis fl. Casiquiari inundatis. F 35 x °4, -35x°3, 3 x 33 ¢ gh-aby 5 Or Y 385-4; br S 2; br. steriles 354mm, Pusilla pallide viridis, strato tenui late effusa. Caules }-1-pollicares, prostrati virides opaci validiusculi subteretes, minute radicellosi, e facie postica parum ramosi, ramique seepe apice attenuato subaphyllo radicantes, flagellis propriis autem nullis. Cellule in caulis dia- metro sectione 7 vel 8; externze (corticales) pluri-(ad 22-) seriate, opacee incrassate ; interiores externis equimagnee vel etiam latiores, __ leptodermes pellucidee. Folia contigua vel subdissita, patulo-recurvula rarius subassurgentia, suboblique obcordato-rotunda obovatave, ad insertionem obliquam vel fere longitudinalem paulo angustiora ; cellule minutule, quad- rato-rectangularive-hexagonz, subopacie, centro pellucide, endo- chromio parco, extus parum prominule verruculoseque. Foliola nulla. Flores monoici: ¢ vel ramulo brevi proprio, e caulis facie postica exeunte constantes, vel ad spicam ¢ axillares: nempe ramulum e bracteze ¢ axilla ortum sistentes. Bractee 92 vix plures quam bijuge, foliis caulinis subequilongee, recurvo-patule ovales breviter bifidee—subinde trifide vel bis bifidae—lobis acutis, hine vel utrinque cum bracteola lanceolata ligulatave basi connate. Andreecia amentis posticis, seepe incurvis, semper fere ramosis, constantia. Bractez primariz sub 12-jugze, foliis duplo fere minores, orbiculate concave raro retusze, Julaceo-imbricate ; bracteolee nulle ; antheridia solitaria. Rami sunt alii fceminei ; alii neutri quorum folia (s. bractez steriles) erecto-reflexa canaliculato-equitantia, elongata, oblonga, apice obcordata bifidulave. ; Stirps singularis, facie formam Odontoschismatis Sphagni parvulam mentiens, flagellorum defectu distincta. Florescentia quasi-gynandra etiam in Cephalozia bicuspidata interdum invenitur. XVII. ADELANTHUS, Mitt. Journ. Linn. Soe. (1864) ; Spruce, Journ. Bot. (1876). Plante cxspitose, pallidz vel lurido-virides. Caules validi, e caudice repente ramoso radicelloso suberecti, apice sepius decurvi, simplices vel parum ramosi, prope basin autem flagella postica minutifolia radicellifera demittentes. Folia succuba—preter ad basin anticam decurrentem fere transversim inserta—sat magna, alterna (in unica specie opposita?) oblique rotunda ovatave, decurvo- 404 ADELANTHUS. secunda, margine antico incurvo subintegerrimo, postico subplano sepissime spinuloso-dentato ; cellule majuscule—minutule, guttu- late, pachydermes, trigonis angularibus conspicuis, inferiores median ceteris 2-5plo longiores, discolores, in vittam dispositz, marginales minute opacule. ol/ola nulla vel perrara et minuta. Flores dioici, utriusque sexus cladogeni, postici. Bractee 2 tris- tichee, intima foliis subminores, apice bifide vel varie incise. Pistillidia 12-15. Pertanthia pyriformia fusiformiave, turgida, 3-5-angula, ore denticulato. Calyptra paulo minor, carnosa, infra medium 3—6-strata, ibidemque pistillidiis sterilibus obsita. Capsula ovalis, 4-valvis, bistrata, czeteraque eadem fere ac in Cephalozia. Andrecia amentiformia; antheridia solitaria, rarissime bina. Hab. ad rupes umbrosas et arborum truncos vetustos prostratosve. Distr. Pauce species adhuc cognite in montibus tropicis, necnon in terris subantarcticis vigent ; unica Britannica, A. decipiens (Hook.) etiam in Antillis et in Andibus Quitensibus inventa est. Plagiochila Dum., habitu et foliis decurvis spinosis simillima, revera distinctissima foliis basi antica constanter recurvis (nec incurvis) ; perianthiis alatere compressis, macrostomis, bilabiatis ; pistillidiisabortivis a calyptra liberis, &e.—Cephalozia subg. Odontoschisma, magis aftinis, distat foliis assurgentibus (nec decurvis) pro more integerrimis; perianthiis constanter angustis et trigono-prismaticis ; calyptra parva, tenui, solum in ipsa basi pistillidiifera, &c. § 1. Folia integerrima. 1. A. Crossit. F. subrotunda, evittata, antice longe decurrentia. Br. apice integre vel 2-3-lobe et subciliate, cum bracteola ovata bifida ciliata connate. § 2. Folia apice margineque postico spinulosa. bo A. decipiens. uride viridis. F. oblique orbiculata, antice longe decurrentia, basi obscure vittata, margine spinis paucis (1-3) armata. sr. foliis subminores, bifidee subintegerrime. Per. pyriformia turgida superne obtuse 3-5-gona. Cal. 3-strata. 3. A. decurvus. Albicans. F. oblique ovato-rotunda brevissime decur- rentia, apice et margine postico argute spinuloso-dentata (dentibus 15-20). Br. foliis zquales, apice varie lobatz et ciliate. Per ovato- fusiformia, obtuse 3-5-carinata. Cal. 4-strata. 1, ADELANTHUS CrossII, Spruce. Hab. In Andibus prope Popayan, in rivuli arena, cum muscis, legit cl. tob. Cross, a. 1877. F 2:0 x 15,¢ gy-dg; br 1:0 x -9™™ (et latiores). Caudex repens brevis radicellifer subaphyllus, caules (plerumque soli- tarios) suberectos pollicares apice subuncinatos proferens. Stolones ADELANTHUS. 405 e caudice et juxta caulis basin proferuntur, alii assurgentes foliosi alii decurvi microphylli radicantes. Folia pauca inferiora minuta distantia rudimentaria, cetera majora, subequimagna, laxe imbricata—stolonum dissita—decurvo-subse- cunda accumbentia, interdum apice reflexa, subrotunda vel oblongo- rotunda, apice rotundato vel rotundato-truncata, subconcava, basi antica longe decurrentia, margine incurvo, postica late abrupte rotundata vel subsemicordata, margine repanda; cellule: mediocres subeequilatero-hexagonze conformes, (marginales autem quadratée) chlorophyllose, pariete ad angulos incrassato. Flores dioici: ? caulis basin versus laterales, solitarii vel fasciculati. Bractee tristichee, 3-4-juge, in gemmam ovoideam imbricatie, extime minute, intime foliis duplo breviores, laterales saepe latiores quam long, altera (saltem) 2-3-loba, apice imeequaliter ciliato- fimbriatz, inter se et cum bracteola intermedia ovata bifida ciliata basi plus minus alte connatze; omnes bractez albidee tener laxe subrectangulari-areolate pellucidee. Pistillidia ad 25, robusta ovato- subulata truncata. Perianthia etc. haud visa. A. magellanicus Lindenb.!, ad fretum Magellanicum ab Hook. fil. lectus, diversus est foliis triplo brevioribus, oblatis (6 x °75™™), parum decurrentibus, media basi cellulis longioribus vittatis. 2. ADELANTHUS DECIPIENS (Hook.), Mitt. Spruce in Journ. Bot. 1876. Jungermania decipiens, Hook. in Engl. Bot., t. 2567 (1813); ejusd. Brit. Jung., t. 50; Plagiochila decipiens, Dumort. Rec., 1, 15 (1885); G.L.N., Syn. Hep., 24; Adelanthus decipiens, Mitt. l.c. ; Odontoschisma decipiens, Lindberg Mst. in Hartm. Skand. FI. 11, 144 (1871); ejusd. in Not. Soc. F. Fl. Fenn., 362, (1874); G. et Rabenh. Hep. Eur. n. 474 1871). Grabs = andina) in sylva Canelos et monte Tunguragua Andium Quitensium, alt. 1200-2400 m., ad rupes et truncos prostratos in umbrosis (R.S., a. 1857). Folia 2°5 longa (ab ipsa insertione antica), 2:0 a basi postica x 2:1 lata ; cell Jyh ; br. int. 15; per 3-4x15; br ¢ 5 x'4( x “75 explanate) ; G2 Zo 125, 13 x -13™™, Ceespites densi, luride virides, siccando fuscescentes, in vivo graveolentes. Caudices prostrati, intricato-ramosi, subtus radicellis villosi, fragiles, caules erectos ascendentesve fastigiatos edentes. Caules 1—1}-polli- cares nigrescentes validi, simplices rarius furcati subramosive, e facie postica stolones paucos flagelliformes plus minus minutifolios pler- umque radicelliferos proferentes, apice decurvuli. Folia inferiora minora subimbricata appressa, superiora majora magis conferta, decurvo-secunda—raro distiche patula—oblique inserta, basi antica longe sensimque decurrentia, dein oblique orbiculata, apice rotundata retusave, margine antico incurva, postico subplana v. leviter concava et vel integerrima vel medio distanter 1-2—3-spinulosa, spinulis postice directis, cellulis intensius coloratis marginata, media basi indistincte vittata. Cellule subconformes, majuscule, hexagone, intus subrotundz ellipsoidezeve, subpellucidee fere vacue, limitibus validis trigonisque maximis flavidis, marginales subquadrate valde TRANS. BOT. SOC. EDIN. VOL. XV. 3A 406 ADELANTHUS. pachydermes, omnes sublevissime. Foliola caulina nulla v. rudi- mentaria. Flores dioici: 2 ramulo brevissimo postico e caulis basi—raro e medio caule inter folia—oriundo constantes. Bractee sub 9, trijuge, tris- tichze, extime minim squameformes, intimee foliis paulo breviores, subrotunde, apice plus minus profunde bifide lacintis patulis, liberee vel basi subconnate, subintegerrime. Ramulus 2 apice pro pedi- celli receptione profunde excavatus, cavitate pyriformi. Perianthia foliis caulinis dimidio longiora, ex involucro alte emersa, anguste obovato-pyriformia turgida, superne obtuse 3-(raro 4-5-) gona, ore primum conniventi-clausa demum subtrifida, subdenticu- lata ciliolatave. Calyptra perianthio paulo minor, pyriformis, sub- stantia firma cellularum stratis 3 conflata apice demum irregulariter trifida, inferne pistillidiis sterilibus sparse obsita. In unica calyptra numeravi 12 pistillidia abortiva, eidem prope basin prcipue adnata, quorum tamen duo ad dimidiam, unum ad #4 calyptre altitudinem posita fuerunt. Capsulas, in meis exemplaribus jam decisas, nondum vidi. Amenta @ ramulos tenues albidos julaceos circinatos sistentia, caulis facie postica per totam longitudinem, sed preecipue basin versus, hic illic insidentia. Bracteze 12-jugze, v. pauciores, arcte imbricate, forma singulari subeymbiformes, vel potius cucullum reversum fingentes, valde concave et subsaccatee vix tamen complicate, parum ine quilatere, apice rotundato sxepius integre raro bidentule, pellu- cidissime areolate, antheridium solitarium magnum brevi-pedicella- tum foventes. Bracteolee ubique obvi bractearum dimidio numero, iisdem 2-4-plo breviores, subrotundze oblongeve, integerrime v. angulate, haud raro folio proximo superiore basi connate. Flagella, saltem in dimidio inferiore, folia rndimentaria minutissima tristicha distantia subquadrato-rotunda pellucida gerunt ; e cujusque folii basi externa profertur fasciculus parvus radicellarum tenuium fragilium ; folia versus flagelli apicem obsoleta nullave, radicellz copiosiores, evadunt. Caules validi: cellule 10-12 in diametro, corticales 30-36-seriate luridz opace ; interne vix angustiores subpellucide, in caule vetusto ssepe deficientes, cortice solo persistente ! Adelanthus decipens, Hook. (typicus), meipso ad Kenmare Sound Hibernie, lectus, humilior est quam Andinus. olia minora, seepius distiche patula, aliarum stirpium tamen decurvo-secunda ; alia ambitu sub- rhombea, acuta vel etiam acuminata apiculataque ; alia spinoso-bi- tri-lobulata ; omnia valde distincte marginata. Cellule subbasales ceteris paulo majores (neque tamen elongate—tales ac in ceteris Adelanthis vidende, unde folia vittata fiunt)—In stirpe Andina, nunquam folia vidi nec acuminata nec profunde incisa lobulatave.— In Cubensi, ill. Gottsche delineata (in Rabenh. Hep. Eur., n. 474), perianthia matura spatheformia, hine pro capsule emissione hiantia. 3. ADELANTHUS DECURVUS, Mitt. Mst. Spruce in Journ. Bot. 1876. Hab. in montibus Guayrapurina et Campana Andium Peruvianorum, alt. 800-1000 in., ad arbores vetustas, legit R.S. pl. ¢,a. 1855; insula Antillarum Dominica legit Guinprine, pl. ¢ et 2 (hb. Wilson et Carrington). ADELANTHUS. 407 Folia 1-2x 85, 1:0 x “75, 8x65; ¢ g5-,1,; bractee 9 1:0 longe; per 29 x 11,13 x 0°9; br g °4 longa; br’*. 25 x +125; anth -125™™, Cwespites lati, ex albido flavicantes. Caudices prostrati, nigrescentes, tenues fragiles intricato-ramosi subaphylli, subtus radicelloso-tomen- telli, caules ascendentes et flagella demissa proferentes. Caules 1-1}-pollicares, subrufi, simplices parcissimeve ramosi, ramique decurvi, siccando fere circinati, tenues vero validiusculi, basin versus —aliquando etiam apice attenuato—microphylli, ipsa basi subra- dicellosi, caeterum arhizi. Folia dissitiuscula, accumbentia, fere, transverse inserta, basi antica brevissime decurrentia, madefacta lateraliter patentia plane succuba, siccando decurvo-secunda appressaque unde incuba viderentur, oblique ovato-rotunda (ramea subobovata), margine antico rectiusculo toto fere anguste incurva integerrimaque vel apicem versus 1-2- dentata, postico rotundato spinuloso-serrata-dentatave, dentibus 15-20 subinzequalibus divergentibus ; nonnulla apice subbifida. Cel- lule parvule subeequilaterze pellucidee, limitibus pallide flavidis validiusculis, ad angulos parum incrassatis, endochromio pallido, v. sparso v. in annulum congesto; marginales (anticze precipue) crassiores, transverse rectangulares; subbasales plurime medi exteris duplo majores, subelongatee, discolores, vittam fingentes. Flores dioici: utriusque sexus e caudice, vel caulium basi nuda, orti, postici. Bractee 2 sub 3-jugse, tristichee; intimee (laterales) f. eaulinis subsequimagnze, suborbiculatee, latiores quam longe, apice varie lobate, lobis imciso-spinosis ciliatisve; bracteola tamen seepe multo longior, anguste oblonga, superne parce spinuloso-denticulata apice ciliata. Perianthia alte emersa ovato-fusiformia (subinde breviora et subrotunda) turgida, obtuse 3-5-carinata, ore constricto ciliata. Calyptra (juvenilis, et cum capsula adhuc conereta) incrassata, e cellularum stratis 4 conflata, pistillidiis sterilibus obsita. Amenta ¢ tenuia albida incurva; bractez 3-8-juge, julaceo-imbricate tenerrimz suborbiculatee (multo latiores quam long) cochleato- concave, apice rotundato spinuloso-denticulate v. subintegerrime, margine antico toto in lobulum apice spinosum late incurvee involu- teve, singule antheridium solitarium magnum globosum, vel duo parvula, foventes. Bracteolee ubique adjectee, bracteis vix duplo breviores, cuneato-ligulate, apice breviter bifidee, segmentis apicu- lato-acutis, subdenticulate. XVIII. ANOMOCLADA Spruce, Journ. Bot. (May, 1876). Plante lignicole, dense depresso-ceespitose, serpentino-reptantes, ramos foliosos floresque utriusque sexus e caulis facie antica media, radicelliferos (flagella) e postica, proferentes. Folia magna, succuba, basi obliqua inserta, assurgentia, apice decurva, subtus crispula, integra, celluloso-erosula; cel/ulcee mediocres pellucide incrassate. Foliola ubique presentia parvula in mucum plus minus dissoluta. Flores dioici: @ ramulo brevi proprio antico constantes; bractece tristiche, trijuge, bifide, tres intime basi perianthio leviter adnata, duz antic basi connate. Pistillidia circiter 20. Perianthia 408 ANOMOCLADA. magna anguste fusiformia trigona, ore subincisa. Calyptra parva tenuis. Capsu/a magna, valida, ab ipsa basi 4-valvis. Elateres elongati subattenuati bispiri decidui. Spore minutissime. Flores masculi amentulis anticis sistentes ; antheridia solitaria. ANOMOCLADA MUCOSA, Spruce, l.c. p. 134, tab. 178. Hab. in sylvis fluviorum Negro, Uaupés, Casiquiari et Atabupo primeevis, ad truncos prostratos putrescentes, sepe aliis hepaticis muscisque irrepens. Folia 1°5 x 1:3, 2°70 x 1:5; cellule 3; f* :25 longa; br* mt 11x04, 16x05; per 40x0°5; cal 1:1x0°6; styl 2; caps 11x05; ped. sectio 35x 3; elat 4; spore ,45™™. Czespites lati depressi, albido-virides vel flavescentes, semper liquore mucoso suffusi. Caules 1-3-pollicares albidi tenaces, cellulis pluri- stratis opacis, corticalibus ceteris vix paulo latioribus, conflati; basi brevi spatio radicellis flagellisque rhizophoris repentes, foliis marcidis vestiti vel subnudi; dein a matrice liberi, arcuantes, densifolii, subtus radicelliferi nudive, statim devexi facieque postica flagella solitaria fasciculatave, valida, albida, subramosa, radicellis tenuis- simis flexuosis villosa, demittentes; postea iterum assurgentes arcuantes radicantesque, apice plerumque liberi foliosi, raro attenuati subaphylli radicelliferi ; facie antica ramos paucos assurgenti-arcu- antes simplices vel ad caulis instar ramosos ftagelliferosque pro- ferentes. Flagella nodulis minutis conicis tristichis distantibus (foliis rudimentariis) basi externa radicelliferis obsita ; noduli flagel- lorum apicem versus obsoletis, radicellze copiosiores evadunt. Folia valida nitida succuba, alterna vel per paria subapproximata, plus minus assurgentia, interdum secunda, undulato-convexa, apice decurvula, ad lineam obliquam angulum 30° cum caule efformantem lata basi inserta, late oblique ovato-ligulata, rotundato-truncata, seepe retusa, raro subemarginata, medio margine utrinque recurva exindeque panduriformia, basi postica semicordata ibidemque szpe tam gibba et crispato-sinuata ut caulis a postero visus cristatus videretur (ad Plagiochile cristate instar); cellule mediocres sub- conformes pellucidee, pulchre guttulatee, ovali-hexagonz, pachydermes, ad angulos insigniter incrassate, Intus 6-sinuate, endochromio parco in sicco sepius in cellule ambituse coacervato, extus perpaulo prominule, leevissimee. Foliola dissita foliis 6-8plo breviora, patentia, Jata basi utrinque decurrente inserta, late ovata, im acumen subulamve brevem producta ; inferiora plerumque tota fere in mucum soluta, itaque ad limbum angustum semilunatum redacta; superiora vix unquam perfecta, sed e margine apiceque plus minus dissolutis nune irregu- Jariter bifida, nunc quadrifida v. digitatim mrultifida, seepius tamen eroso-lacera videnda. Radicellae apice clavato-nodosie, rarius sub- divisee, e foliolorum basi raro proferuntur. Flores dioici: 9 ramulo brevissimo caulis facie antica medium versus oriundo constantes. Bractee trjuge, tristichee, infimee minutee sub- bifida ; supremze foliis subsequilongee, perianthii basi leviter adnate, a basi oblonga vaginante recurvo-squarrosie, ad medium. bifide, Jaciniis subacuminatis varie tortis angulatis subincisisve, duc anteriores plus minus alte connate, tertia postica (bracteolave) paulo ANOMOCLADA. 409 angustior libera; bracteze mediz supremis sat minores minusque incisz ; omnes bractez pellucide elongate areolatze. Perianthia foliis fere 2-plo longiora, albida, pellucida, anguste trigono- fusiformia 8-plo longiora quam lata, superne obtuse triplicata, ore constricto breviter obsoleteve i incisa, leevissima, demum infra medium compresso-teretia, cellulis subrectangularibus conflata. Calyptra perianthio fere 4-plo brevior, pyriformis, tenuis (e cellularum strato unico) basi ipsa pistillidiis sterilibus sub 20 cireumdata, apice demum irregulariter bilabiatim rupta, labio altero stylo persistente rostellato. Capsula magna calyptre zquilonga, nigra, cylindrico-oblonga, stratis cellularum duobus constans, demum ab i ipsa basi 4-valvis, ‘pedicello valido suffulta. Elateres badii, elongati, tenues, utrinque perpaulo attenuati, spira duplice preediti, decidui, Spore minutissimee leves nucleate. Plante ¢ cum @ mixtre, tenuiores, pauciramese. Amenta antica, folio proximo breviora, tenuia, incurva albida. Bractez 8-juge, vel pauciores, foliis 4-plo breviores, tenerrime, suborbiculate, concave, lateribus incurvis, apice bilobe, interdum 4-lobe. Antheridia magna, solitaria, brevistipitata. Bracteolee ovate apice bidentate, supreme subrotundz bracteis vix minores. XIX. KANTIA Gray. Nat. Arr. Brit. Pl. (1821). Calypogeia § B Amphigastriate Raddi (1820); Calypogeta Nees, Hep. Eur.; G. L. et N. Syn. Hep. Plante majuscule, depresso-ceespitose, pallide virides, olivacezve, raro badiz, in sicco sepe fuscescentes, prostrate vel apicibus (sepe gemmiparis) assurgentes. Caulis sat validus, in planum simplex, raro furcatus, postice ramosus et radicellis prelongis, apice clavatis vel ramulosis, villosus. Folia majuscula imbricata incuba, alterna plana vel convexula, oblonga—interdum duplo longiora quam lata— seepe subrhomboidea, integerrima, apice rotundata retusave, rarius acuta, bidentata vel biloba; ced/ule laxze, majuscule—rarius magne vel mediocres—equilateree vel oblongo-hexagonz. oliola ubique presentia, foliis subduplo minora, subrotunda, raro reniformia, apice integra, retusa bifidave, margine integerrima, rarius denticulata spinulosave, vel utrinque unidentata-lobulatave ; plerumque pellu- cida, seepe tenerrima et quasi vitrea Flores hypogeni, in foliolorum axilla nidulantes, 1—3-ni, dioici vel monoici (interdum paroici), flore medio (in monoicis) perseepe ¢, flore utriusque lateris ¢. Bracteve 2 2-3-juge, tristichze, foliis multo minores, subrotunde, ovales, lanceolateve, integre vel 2—4-fidee, subconnatee, demum in marsupii ore cum pistillidiis sterilibus persistentes. Pistillidia sub 12. Mar- suptum (in perianthii vicem) pendulum, subterraneum, clavatum_vel subcylindricum, carnosum, pluristratum, radicellis hirtum, ore brac- 410 KANTIA. teis persistentibus squamosum, intus papillosum. Calyptru paulo brevior, marsupio ad apicem usque fere adnata. Cupsula in pedicello valido (eodem diametro ac capsule) alte exserta, cylindracea, 3—4- plo longior quam lata, bistrata, cellulis strati interioris fibris semi annularibus fulcitis, ad basin usque 4-valvis ; valvulz lineares, striis 3 vel 4 intensius coloratis percurse, in spiram unicam completam contortz, demum (sporis decisis) subexplanate. Elateres filiformes breviusculi subobtusi dispiri. Spore minute, eodem diametro ac elaterum, scaberulee.—Pistillidia sterilia calyptre apice insidentia. Hub. In terra umbrosa humida, etiam ad truncos putrescentes, et in muscis repentes, rarlus in rupibus. Distr. Tn tota hemisphera boreali proveniunt, majore copia autem sub zquatore in sylva calida Amazonica et in Andium radicibus orientalibus, ubi ipse 10 species, plerasque novas reperi. § 1. Foliola apice rotundata obcordatave, vel ad summum levissime emarginata, apicibus rotundatis. 1. K. cyclostipa S. Dioica prostrata, raro flagellifera. Folia rhombeo- oblonga truncato-rotundata-retusave, basi subsemicordata. Foliola =} folii, suborbiculata interdum obcordata. K. cespitosa 8. Dioica cxespitoso-erecta, sat ramosa, eflagellifera. Folia majuscula rhomboidea rotundata subretusave, cellulis transversis angustis insigniter marginata. Foliola ovato-orbiculata integra vel breviuscule emarginata. 3. K. nephrostipa 8. Dioica prostrata eflagellifera. Folia oblongo-ligulata retuso-truncata. Foliola tplo breviora reniformia, apice subemar- ginata. bo § 2. Foliola distinete bifida : a, rima apicali ad 1-1, in paucis ad foliolt 4 usque. 4. K. parallelogramma S. Dioica elongata luride rufa dense intexta sub- flagellifera. Folia oblique ligulata, fere parallelogramma, truncata sepe retusa, cellulis mediocribus equilateris, trigonis ad angulos auctis, cuticula insigniter tuberculosa. Foliola plus duplo minora tenuissima, late ovata breviter bifida, segmentis cuspidatis subspinu- losis. K. mastigophora S. Dioica pallide viridis sat ramosa et flagellifera. Folia faleato-oblonga subtruncata, basi antica subsemicordata ; cellule mediocres suboblonge, marginales minores caduce. Foliola 5plo minora, tenuia, reniformi-rotunda, interdum subdenticulata, breviter bifida, segmentis subacutis obtusisve. 3. K. rhombifolia S. Dioica pallide viridis flaccida laxe stratificata. Folia late rhomboidea plus minus acuta, rarissime bidentella, erosula, cellulis majusculis plerisque oblongis. Foliola 4plo minora cuneato- quadrata, ad 4 bifida, segmentis obtusatis. 7. K. biapiculata S. Dioica olivaceo-viridis tenuis. Folia oblique ovata subdecurrentia repanda, apice angusto emarginato-biapiculata, cellulis majusculis zequilateris marginalibus minoribus. Foliola 3plo minora, or fap) KANTIA. rOBl late orbiculata, ad 4 bifida, segmentis bifidulis, margine utrinque 1-2-denticulata. b. rima apicali ad 3-2 vel ad folioli basin usque fere protracta. 8. K. leptoloma S. Paroica pallide viridis tenuis. Folia parvula rhombeo- oblonga subdecurrentia, celluloso-dentata, apice angusto biapiculata ; cellulis majusculis, marginalibus linearibus (caulis axi subparallelis) faleatis. Foliola 4plo breviora, profunde bifida, lobis bifidulis raro integris. Marsupia foliis subeequilonga villosa, pariete 6—8-strato. 9. K. amazonicaS. Autoica albido-viridis sat robusta. Folia magna ovalia, subduplo longiora quam lata, emarginato-bidentata, dentibus acutis, rarius integra; cellulis magnis oblongo-hexagonis. Foliola foliis 8plo breviora bifida, lobis divergentibus bifidulis. Marsupia foliis sat longiora cylindrico-conica villosula, pariete 2-3-strato. 10. K. tenax S. Dioica pallide olivacea elata, radicellis validis repens. Folia magna ligulato-oblonga rotundata retusave, cellulis magnis longe hexagonis. Foliola foliis 5—7plo breviora, oblata, ad basin fere usque bipartita, lobis ovatis obtusis rotundatisve, raro acutis. 1. KANnTIA CYCLOSTIPA, Spruce. Hab. Andes Peruvianos, alt. 1000", in terra umbrosa humida montis Campana. F. 8x ‘65, °8x ‘5, ¢ Sah 5 f °4 x 455 br 5x 3mm, Rufo-badia prostrata. Caules pollicares parum ramosi equifoliati, ramis raro subflagellaribus. Folia parum imbricata, subplana, rhomboideo-oblonga, basi antica sub- semicordata, apice truncato-rotundata-retusave, raro emarginata ; cellule majuscule subplanz eequilatero-hexagonz vel suboblonge, marginales minores quadrate, omnes facie crebre tuberculose, ad angulos inerassate. Foliola contigua } folium equantia, ovato-orbiculata, apice rotundata vel subemarginata, plana pellucida, cellulis tenuibus elongatis, margin- alibus ad angulos externos prominulis. Flores dioici: @ solitarii (imperfecti). Bracteze $ folium excedentes, oblong concavee bifidule, aliis subulatis Immixtis. Andreecia solitaria, spiculam posticam incurvam sistentia; bracteze 6-jugee, latiores quam longze, complicato-coneavie, eroso-subbifide ; bracteolee foliolis subconformes angulato-denticulate. Var. celluloso-serrata, minor, fulva vel fuscidula, caule parum ramoso, radicellis validis folia 2-3-plo excedentibus repente. Folia minora (‘5x °35™™) typicis conformia; cellulz minores (5™™), asperule, marginales plus minus conico-prominule (unde folia serrulata evadunt). Foliola plus duplo minora (.2™™) orbiculata, apice brevissime obtuse bidentella vel integra nisi pro cellula hic illic in dentem prominula.—Forsan eadem ac Jung. cellulosa Spreng. No valid character separates this variety from the type, and some approach to the marginal cells projecting as teeth is seen occasionally in other species of Kantia. Whether it be the Jung. cellulosa Spreng. Syst. Veg. (= Mastigobryum cellulosum Ldng. Syn. Hep. 217, and Spec. Hep. t. 3) lam unable to say. It is certainly very like the figure just quoted, but in the description the leaves are called “ obovato-trapezoid,” which I 412 KCANTIA. have never seen in the Andine plant. If it should prove to be the same, and to be not distinct from K. cyclostipa, then that name must give place to the prior K. cellulosa (Spreng.). 2. KANTIA CHSPITOSA, Spruce. Hab. In sylva Canelos Andium Quitensium, alt. 1000™, ad arborum radices lignaque. FSX 75; f@ 6x6, 65x°7 3 ¢ ayes br 5™™ Ceespites lati olivaceo-virides, intus flavescentes ; caules erecti fastigiatim ramosi-—interdum ad speciem dichotomi, ramis autem omnibus hypogenis, parce radicellosis. Folia incuba majuscula, contigua vel subimbricata, plana sat valida, rhomboidea—duplo longiora quam lata—apice rotundata subretusave, basi postica longiuscule decurrentia, toto ambitu marginata ; cellule majuscule oblongo-hexegonze leptodermes chlorophyllose, margin- ales uniseriatee multo angustiores transversales subincrassate pel- lucidee. Foliola foliis plus duplo minora, dissita, ovato-orbiculata integra vel apice brevissime angusteque emarginata, cellulis pellucidis vacuis sub- rectangularibus, marginem versus flexuosis, areolata. Flores dioici: 2 hypogeni; bracte foliolis fere conformes, subminores, valde concave, apice integra vel leniter fisse. Obs. Grows around the base of trees and extends for a foot or two up the trunk in a continuous tufted olive-green mat. This habit gives it an aspect distinct from that of every other Kantia, and assimilates it, at first sight, to Lejeunea. The East Indian K. alternifolia (Nees) S.—figured =F ‘Species Hepaticarum’ t. 2 as a Mastigobrywm—must be a very near ally. 3. KANTIA NEPHROSTIPA, Spruce. Hab. Ad truncos putridos, etiam ad terram in rivulorum ripis, in sylvis fl. Negro Venezuele, locis San Carlos, Javita, &e. Pl2%'°7 5 ¢ dys; f@ 3x °453 br 9 5 x.25, 5 x -4mm, Prostrata, e pallide viridi badia rufescensve. Caules 1-2-pollicares vage subramosi implexi arcte repentes. Folia per paria approximata, superiora subopposita, subplana, angulo fere recto divergentia, basi ad } lat. imbricata, suboblique oblongo- ovatove-ligulata, basi subdecurrentia, apice lato retuso-truncata, (angulis rotundatis), margine repanda vel celluloso-crenulata ; cellule majuseule oblonge leptodermes, ex endochromio parco annulari pellucida, marginales minores. Foliola foliis 4-plo breviora, dissita, plana, reniformia, apice acute emarginata obcordatave, angulis rotundatis, e basi radicellas plurimas longas albidas flexuososas subdivergentes edentia. Flores dioici: 9 solitarii binive. Bractee suberecta 3-stiche 3-juge, angulatee denticulateve, inequaliter breviterque bifid, anguste, forma varie. Marsupia.... Amenta ¢ folio proximo sublongiora ineurva; bractes 10-jugee secunde ovato-rotundae concave breviter bifida ; bracteola minores sub- quadrate emarginatze. KANTIA. 413 4, KANTIA PARALLELOGRAMMA, Spruce. Hab. Ad fl. Uaupés prope Panuré, in declivibus umbrosis humidis ad terram, rupes, truncosque semiputridos, PUTX 6; ¢ sho; f* 45x °4, (5 x 85mm, In plagas latas prostrata, e rufo olivacea nigrescensve. Caules 3-pollicares dense intexti flexuosi parum ramosi, ramis assurgentibus elongatis seepe fere arhizis, nonnullis (rarissimis tamen) descendentibus flagelli- formibus radicellosis et subaphyllis. Folia parum imbricata contiguave, decurvula v. subplana, oblique ligulato-oblonga fere parallelogramma, truncato-rotundata retusave, plus minus repanda; cellule squilateree mediocres, facie interna rotundze annuloque angusto opaco cincte, ad angulos trigonis aucte, euticula crebre et regulariter tuberculoso-asperula. Foliola plus duplo minora ovato-rotunda v. ovato-oblonga, angulato- denticulata, breviter (ad }-4) bifida, segmentis erectis v. sepius conniventibus cuspidato-acuminulatis, subspinulosis, tenuissima fragilia (vitrea) elongato-cellulosa. Fi. dioici: ¢ spicule minut amentiformes e folioli axilla orte: bractez minut arcte imbricatz obcordato-orbiculate concave monandre. Bracteole adjiciuntur. Obs. Cellule caulis 8 in diametro, 20 in ambitu, corticales scilicet rectangulares ‘O6—08™ Jonge, duplo triplove longiores quam late ; interiores eodem fere diametro multo longiores, pariete opaculo (tuberculoso ?) 5. KANTIA MASTIGOPHORA, Spruce. Hab. in trunco putrescente ad rivulum Cauapuna, juxta San Caros del Rio Negro. F12x'8; cay; f 25x °4; br 5am, Pallide viridis prostrata. Caules 14-pollicares, in genere sat ramosi, ramique subequifoliati, radicellis repentes et intricati ; alii rami autem (neque pauci) flagellares subaphylli radicantes. Folia paulo imbricata subplana, axi angulum 70°—-90° cum caule efficiente, patentia, subfalcato-oblonga, rotundata, obtuse truncata, vel retusula, repanda et celluloso-crenulata, basi postica decurrentia, antica rotundata vel semicordata ; cellule mediocres subpellucidee oblongze vel subzquilaterze, pariete ad angulos incrassato, marginales minores fragiles seepeque deciduc. Foliola 5-plo minora reniformi-rotunda, vix ad 4 usque bifida, segmentis subacutis obtusisve, tenuia fragilia repanda, interdum subdenticulata. Flores dioici: @ postici, solitarii binative. Bracteze bijuge erecto- incurve, foliis,plus duplo breviores, ovales lanceolateve bifida, segmentis subacuminatis, grosse subserratz, liberae vel seepius basi vario mode connate. Fl. ¢ haud visi. K. parallelogramma &., caule flagellifero similis, differt colore lurido; ramis assurgentibus ; foliolis multo majoribus angustioribus bicuspi- datis subspinulosis. = 6. KANTIA RHOMBIFOLIA, N. sp. Hab. In terra umbrosa ad fl. Bombonasa ripas. 414 KANTIA. F 8x °65, c. inf. dy ft 2x 15™™. Pallide viridis, dein fuscidula, in plagas latas laxas prostrata; caules 2-pollicares flaccidi parum ramosi. Folia contigua v. parum imbricatula, incuba, subplana, late patentia, late rhomboidea, angulo externo (inferiore) rotundata, apice acuta, apicu- lata, subobtusave, rarissime bidentella, margine e cellularum suturis subprominulis erosula (sed non limbata) ; cellule majusculz lepto- dermes subpellucidee, subelongate, paucee subapicales sat minores eequilateree. In aliis plantis adveniunt hic illic per caulem folia pauca consecutiva ceteris minora, Magis dissita, oblique triangu- laria. Foliola 4plo minora, caule hand latiora, subquadrata vel cuneato-quad- rata, ad medium bifida, segmentis obtusatis subineequilongis. Foliis immarginatis szepissime integris, foliolis solum ad medium usque bifidis, segmentis integris nec bitidulis, a K. leptoloma satis differt. 7. KANTIA BIAPICULATA, Spruce. Hab. Andes Peruvianos in monte Campana, sociis Odontoschismate denu- dato, Lophocolea nuricata, &e. BME B5 > C sia 5 Die ii) ga Prostrata tenuis e viridi olivacea; caules pollicares arcte repentes vage ramosi. Folia subimbricata decurvo-convexa oblique ovata parum decurrentia repanda, apice angusto emarginato-biapiculata, sinu lunulari acutove ; cellule majuscule sub:equilateree valde leptodermes pellucide, fere vacue, marginales minores. Foliola triplo minora dissita, late orbiculata, basi valde radicellifera, ad medium bifida, sinu preelato triangulari lunulatove, segmentis sub- acutis vel bifidulis, extus grosse 1-2-denticulatis. Flores dioici: Q hypogeni, (juveniles, imperfecti). Bracteze suborbicu- latee concave apice ineequaliter quadrifide. K. amazonica 8. folia habet multo longiora, apicibus solum acutis, cellulis oblongis subduplo longioribus quam latis ; foliola multo minora profunde bifida, &e.—K. peruviana (Nees) differt caule flagellifero ; foliis apice seepe integris ; foliolis parvis profunde bifidis, margine integer- rimis.—K. leptoloma 8. florescentia paroica ; foliis subrhombeis, e cellulis longis insigniter marginatis ; foliolis minoribus profunde fissis ; distinct- issima est.—K. arguta Mout., nostre sat similis, cellulas habet duplo fere majores ; foliola bipartita, segmentis in lacinias duas subulato-acuminatas fissis. 8. KANTIA LEPTOLOMA, Spruce. Hab. in trunco carioso ad Panuré fluvii Uaupés. F °85 x65; ¢ Jy—sy X dy, marginales 45; f'2 x 2; br 35 x3; marsupiwm "BH «x (hmm, Pallide viridis tenuis prostrata, in matteolas laxas intexta, radicellis raris. Canles 1-2-pollicares teneri parum ramosi; rami postici, alii normaliter foliosi, alii parvifolii subflagelliformes raro apice radicantes. Folia incuba subplana, perpaulo imbricata, ad lineam fere longitudinalem, angulo postico subdecurrentem, inserta, rhombeo-oblonga-ovaliave, apice angustato acute biapiculata, sinu rotundato; apiculis brevi- ICANTIA. 415 subulatis, 2—4-cellulas altis, acutis; toto margine e cellularum angulis extimis prominulis ad speciem dentata; cellule majusculze lepto- dermes, intus annulo pertenui opaco cincte, superiores azquilatere, medize inferioresque submajores oblong, marginales elongate lineares faleatee (extus concave) flaventes, folii limbum sistentes. Foliola distantia, foliis 4plo breviora, subrotunda, profunde (ad 3-32) bifida, segmentis bifidulis bidentulisve, raro integris et acutis. Flores paroici, e foliolorum posticorum axillis orti, fasciculati, 1-4ni, sepius 3ni. Bractez 3—4-jugze, foliis duplo minores, ovato- orbiculate, concave, ad } fere usque 3—-4-fidee, segmentis ineequalibus acutis, tenerrime, laxe elongate areolate ; bracteolee breviores sub- ulate, interiores sublatiores utrinque unidentate, vel subtrifide, raro plurifide. Ad bractearum axillas adstant antheridia solitaria majuscula globosa pedicellata; ad torum terminalem pistillidia 10-12, vel pauciora, antheridio uno alterove subinde adjecto. Marsupia foliis equilonga, oblonga vel subpyriformia, extus radicellis longis fuscidulis villosa, stratis cellularum 6-8 conflata, ore obliquo bracteis congestis stipata: juvenilia solum visa, quibus neque ealyptra nec capsula aderat. Obs. Cellule folii marginales longitudinales, nec transverse quales in C’. laxa G, et L., C. cespitosa Spruce, aliisque speciebus inveniuntur. 9. KANTIA AMAZONICA, Spruce. Hab. in umbrosis ad terram, locis Tauaé prope fl. Amazonum ostia, Manédos et S. Gabriel fl. Negro; annis 1849-1852 legi. F15x°9, 15x °6, f°2x °35; ¢ 3X ak, 7 x ak; Or '25-5 longe; marsup 2°4x °55; caps 1°2x°4™™, Albido-viridis, tenui strato late effusa. Caules pollicares arcte repentes flexuosi vage ramosi. Folia subimbricata, angulo lato patula, apice decurvula, suboblique ovalia oblongave—subduplo longiora quam lata—apice rarissime integra plerumque emarginato-bidentata, sinu brevi acuto obtusove, dentibus acutis; cellule magn oblongo-hexagonze leptodermes pellucida, endochromio parcissimo. Foliola parva, foliis 8plo fere breviora, caule vix latiora, distantia, valde oblata, profunde bifida, segmentis divergentibus angustis bifidulis subacutis. Flores monoici, 1-3ni (laterales masc., medii feeminei). FI. fem. bractez foliis 3-6plo minores profunde 2-3-fidee, segmentis inzqualibus subulatis incurvo-uncinatis. Pistillidia plura perbrevia. Marsupia pendula, foliis dimidio longiora, cylindrico-conoidea, curvula, radicellis longis villosula, stratis cellularum 2 v. 3 conflata; ore hine eauli processu brevi adfixa, et bracteis et pistillidiis abortivis cireum- data. Calyptra (= marsup.) alte exserta cylindrico-oblonga, 4-valvis ; valvulz in spiram unicam completam convolute, lineares tristriate, demum explanatz substrictee, basi in discum caviusculum, cellulis 4 magnis rhombeis, paucis minoribus subtrigonis circumdatis, con- antem oblique coalitz. Amenta mascula fl. fcemineo spe collateralia, albida brevia; bracteze 3-5-jugee minute profunde bifida, segmentis acuminatis, seepe b si hine vel utrinque spina aucte, monandre. Accedunt bracteolee, 416 KANTIA. Var. inequifoliata. Albicans pellucida, caule ineequifoliato, nempe foliis altero caulis latere deficientibus vel ad squamulas bidentulas redactis. Folia ovato-ligulata exciso-bidentula. Foliola seepe dimidiata, dimidio altero (folio rudimentario subjecto) obsoleto, vel ad processulum subulatum redacto.—Hab. in terra umbrosa fluvii Uaupés. Folia, semper sat longa, inaliis exemplis subobovata, in aliis rectangularia fere videntur. In omnibus folia hic illic minora, diversiformia, vel altero caulis latere fere deficientia, altera magna, inveniuntur. C. Miquelit Mont., e descriptione cl. auctoris huic affinis erit ; quandoquidem folia “ rotundato-bidentata,” et foliola solum “bifida” (nec bis bifida) dicta sunt, pro diversa specie habituram censeo. K. Sprengelii Mart. certe differt foliis tam latis fere quam longis (nec subduplo longioribus, ac in nostra), cellulis subduplo brevi- oribus ; foliolis multo majoribus ; bracteis 3 ad 4 solum fissis, &e. 10. KAaNTIA TENAX, Spruce. Hab. In truncis prostratis putresc. in sylvis fl. Negro et Uaupeés, locis Umirisdl prope Mandos, Panuré, &c. F 2:0x1:0,15x°9; ¢ y4—h: f* ‘3™™ longa, lobi -25™™ late. Elata pallide olivacea prostrata, matteolas latas tenaces efformans. Caules 2-4-poll. vage divaricato-ramosi, radicellis validis repentes. Folia patula subplana vix decurvula, seepe per paria approximata, perpaulo imbricata, ex insertione fere longitudinali oblique ligulato-oblonga v. subrhomboidea, apice lato rotundata retusave; cellule magne elongato-hexagon leptodermes pellucidee subchlorophylosi. Folia superiora sensim multo minora, unde rami sepe lanceolati videntur. Foliola dissita foliis 5-7-plo breviora, oblata ad basin fere usque bipartita, lobis divergentibus seepe recurvis ovatis ovalibusve acutis v. obtusis. Fl. dioici: Q postici seepe fasciculati; bractez foliis plus duplo breviores erecto-patule ovato-oblong ; bracteole breviter bifidee. K. amazonica subminor est, albicans, tenerior, ramis haud divaricatis; foliis minoribus ovalibus emarginato-bidentatis; foliolis subminoribus bis bifidis. Subtribus V. SCAPANIOIDEZ:. Caules e rhizomate repente aphyllo radicelloso orti, arcuati erective, pauciramei, ramis omnibus lateralibus, e folii axilla oriundis, nisi perraro adveniat innovatio una alterave sub-floralis e caulis facie postica orta. Ladicelle caulinz sepe crebre, semper fere colorate, rubre purpuresve, raro pallide. Folia alterna transversa, distiche explanata vel decurvula, sepe maxima, complicato-biloba, amplexi- caulia et ubi confertiora equitantia, utroque angulo basali carinaque brevissime decurrentia ; lobi inzequales, anticus (i.e. lobulus) minor, rarissime postico subequimagnus ; carina plicave semper fere acuta, haud raro alata; margine in omnibus fere pulchre denticulato, spinuloso ciliatove, interdum primum pinnatifido dein dentato ; facie supera in plerisque nuda, in aliis autem lamellata pilosave ; cellule magnitudine varie, cuticula scabra vel levissima. oliola ~~ SCAPANIOIDE. 417 in plurimis omnino nulla; in aliis Schistocheilis antem adveniunt sat magna, biloba, margine vario modo incisa. lores terminales dioici, raro paroici. Andrecia spicata; bractee di-polyandre. Gynecia sepe innovatione suffulta; bractee foliis subconformes, erectiores tamen, magis zquilobz ; in Schistocheila autem 3 vel 4 pares, cum suis bracteolis, caulis apici turgido et cavo (perianthii vicibus fuugente) adnate, summi verticilli interdum in cyathum 6—9-fidum connate. /istillidia sat numerosa. Perianthium, ubi adest, emersum, a fronte compressum, aut subinflatum et 5—pluricar- inatum. Calyptra ovalis pyriformisve, aut libera, tenuis basique pistillidiis sterilibus cincta; aut (in Schistocheila) adnata, apice pistillidia gerens. Capsula in pedicello sat alto, vel breviusculo, exserta, oblonga, interdum plus duplo longior quam lata, pluristrata, ad basin 4—valvis. /ateres dispiri capsulz parieti interno undique affixi. Spore parvule. Of this subtribe I gathered only a single species in equatorial America, of the same genus (Scapania) which in our northern clime is more abund- ant than any other, flourishing in rocky wooded dells and indeed where- ever there is the requisite moisture and shade. The species are mostly conspicuous from their size, tufted growth, beautifully toothed large leaves, and often for their colour, nearly every species having a roseate or purple variety ; but none of them equals in size the Scapania I gathered in the savage Forest of Canelos, on the eastern slope of the Andes, nor does any European species grow normally, as it does, on the trunks of living trees, although all luxuriate on fallen and decaying timber. Schistocheila Dum. (=Gottschea Nees), the southern analogue of Scapania, and still more remarkable for its large and beautiful foliage, is entirely absent from equatorial America, although a few species occur in the eastern tropics. In 8. America it does not begin to appear until we reach Patagonia and the southern parts of Chili, but its great home is in Australasia. To the same subtribe belong Schistocalyx Lindberg (=Jung. densifolia Hook., J. vertebralis Tayl., &c.) whose fructification is unknown to me; and Diplophyllum Dum., of which we have 3 British species, D. Dicksoni (Hook.), D. obtusifolium (Hook.) and D. albicans (L.), the last-named probably the commonest of all European hepatic, growing as it does at all elevations and in almost every possible variety of site.* * That D. Dicksoni is a true Diplophyllwm I cannot doubt. It has all the characters of the genus, and the pluriplicate perianth, the axillary branches, &e., are quite conformable to those of D. albicans. An allied species, D. argenteum (Tayl. hb.) from N.W. America, is an equally decided congener. I add a brief character. D. argentewm (Tayl.!) Spruce. Folia transversa, superiora equitantia, ad } complicato-biloba, lobis lanceolatis acuminatis, antico postico subequilongo sepius duplo angustiore, margine grosse serrata, basi crenulata. Br. 3-juge, confertissim, intimz suborbiculate ad $ 2-4-lobe, lacinulato-spinulose. Per. emersum ovali-fusiforme, ab ipsa basi obtuse 12-plicatum, ore in cilia numerosissima flexuosa intexta fissum, quasi- tomentosum. Diplophyllum brings us into immediate contact with Lindberg’s § Sphen- olobus of Jungermania (=J. minuta, J. sxxicola, &c.), which, indeed, form 418 ScAPANIA. XX. SCAPANIA, Dum. Recueil, (1835) ; Radula § 2 Scapania Dum. Syll. (1831), Genus unicum hujus subtribus meipso sub AXquatore lectum a ceteris generibus perianthio donatis distat perianthio compresso- plano, faciebus normaliter eplicatis, carinis aciebusve lateralibus ad anthophyllorum plicam, suturis antici et posticé haud perceptibili- bus, vel posticd in carinam humillimam elevaté; nullibi alata, ore lato truncato integerrimo, dentato, vel lobulato. Bractee ¢ 3—12- andre (usque ad 20-andre, Syn. Hep.)—De habitatione speciei Andine solitariz videas infra. 1. SCAPANIA SPLENDIDA, Spruce. Hab. Andes Quitenses, in montis Abitagua cacumine pluvioso, alt. 2000", ubi ad palmarum truncos viget. F. lob 55 x 3°3, lobul 4:2 x 3°3, 3°0 x 2°5 ; carina *8-1:0; ¢ py—szh 3 per 8:0 x 3°7 ; cal 3:0 x 2-0; caps 2°75 x 1°25 ; sectio caulis *8 x “5™™, Cxespites elati laxiusculi pendul. Caules 3-pollicares, ramos paucos axillares cauli subparallelos, edentes, fere arhizi, nigrescentes, validi, subcompressi, sectione ovali, strato corticali proprio nullo, cellulis exteridribus minoribus coloratis (opacis), interioribus subpellucidis, omnibus parvis sectione fere eequilateris. Folia maxima albido-viridia basi purpurascentia parum imbricata fere horizontaliter patula subplana bipartita ; lobus suboblique ovalis rotundatus raro solum obtusatus basi postica crispulus caulem late transiens, toto margine minute crebre spinuloso-denticulatus ; lobulus subdimidio brevior, fere eequilatus, late rhomboideo-ovalis, obtusus v. abrupte acutus, subconcavus, margine spinuloso lobo appressus, basi antica dilatata suberispula caulem late transiens. Cellule inferiores elongatee, superiores submarginalesque fere sequilateree, parvule incrassate, minute 6-sinuate, cavitate ovali plus minus elongata subinde angulata, subopacee sublievissimee.—Insertio tam lobi quam lobuli est fere tranversalis, ad lineam arcuatam utrinque in caule subdecurrentem. Lobia basi ad +—1} altit. connati, sutura convexa (arcuata) fere horizontali vix alata. Flores dioici: 9 terminales; bracteze (sc. folia suprema) ceteris foliis parum diverse, minus patentes, basi perianthium arcte amplectentes, lobis paulo inzequilongis altius (fere ad 4) connatis, carina angu- lum cum caule acutum formante. Folia bracteis proxima in typum normalem sensim transeuntia. Perianthia alte emersa, bracteis vix duplo longiora, pallida, basi purpur- part of Diplophyllum as originally proposed by Dumortier. In this, as in many other cases, it is a merely artificial line which we are obliged to draw between two adjacent groups. The relationship of Scapania to Plagiochila seems to me by no means so close as it has been represented ; the distinctly succubous leaves of the latter, the entire absence of an antical lobule, the laterally (not frontally) compressed perianth, and other differences sufficing to separate them somewhat widely, notwithstanding the sharply-toothed leaves usual to both genera. SCAPANIA. 419 ascentia, compresso-tubzeformia, ore complanato suboblique truncato pluri-(sub 15-) lobulata, lobulis ineequaliter spinulosis. Calyptra brevis pyriformis, basi pistillidiis pluribus obsita. Capsula badia calyptra vix brevior ovali-cylindrica, in pedicello perianthium haud duplo superantem suffulta, 4-valvis. Subtribus VI. EPIGONIANTHEA. Plante mediocres elateve, rarius pusille vel minute. Cavules vel e caudice repente microphyllo radicelloso assurgentes erective, spe robusti et normaliter arhizi, vel ab initio procumbentes prostrative radicellosi et foliosi; ramificatio seepe vaga, haud raro dichotoma, rarissime pinnata ; ram in omnibus fere plus minus exacte laterales, e foliorum axilla juxta angulum posticum—raro e media axilla— orlundi; in perpaucis postici, foliolis axillares. Folia succuba, raro (ubi confertiora) subtransversa, nunquam incuba, in plerisque alterna, in plerisque aliis opposita (raro utrinque cum contrariis connata, perseepe autem postice cum foliolo intermedio in verticillum tri- foliatum connata) ; ambitu orbiculata, ovata ovaliave, interdum sub- quadrata, nunquam filiformia, frequenter autem subdimidiata; in aliis integra, in aliis bifida, in aliis paucis 3-5-fida. Cellule ut- plurimum mediocres majusculzeve, vix unquam minute ; equilaterse vel oblonge. oliola raro sat magna et ubique preesentia; plerumque vel nulla vel parva et squamuleformia. ores acrogeni, in solum paucissimis cladogeni; in robustioribus constanter fere dioici, in tenellis et pusillis sepe monoici. SBractew 9 1—5-jugee, foliis sub- conformes vel magis incisz, subinde basi subconnate, vix unquam in cyathum coalitz ; in Nardia autem et affinibus perianthio plus minus alte adnatz ; in generibus marsupiocarpeis quandoque minute, inter se in coronulam duplicem triplicemve marsupil os cingentem connate, Pertanthium (ubi adest) alatere plus minus compressum ;* in aliis a basi vel saltem supra medium complanatum, ore lato trun- cato vel bilabiato, seepe dentato ciliatove, aciebus (antica et postica) subinde alatis ; in aliis trigonum (angulo tertio in fronte, 1.e. antico), ore hiante 3-6-lobum, angulis alatis vel nudis; in aliis turgidi- usculum, 3-10-plicatum-carinatumve (rarissime teres atque cylin- dricum) apice constrictum microstomum vel primum clausum demum valvatim ruptum. Calyptra plerumque tenuis, rarius carnosula, in plerisque libera basique pistillidiis sterilibus cireumdata; in paucis perianthio vel involucro adnata, apice solo pistillidia sterilia gerens, * Nisi in genere Marsupella ac in Jungermanice paucis speciebus, perianthio a fronte compressulo vel impresso donatis. 420 EPIGONIANTHEA, Capsula in pedicello brevi vel seepius sat longo suffulta, raro spheerica, seepius oblonga vel subcylindrica, valida, 2-8-strata, ad basin usque 4-valvis. Elateres dispiri, paucis ex parte vel tota longitudine monospiris raro adjectis. Spore parvule—minute.