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INDEX TO ANNALS OF BOTANY

VOLS. XI-XX (1897-1906)

[Synonyms are indicated by italics. An asterisk (*) indicates an illustration, and a dagger (t) a palaeophytological article.]

Abies firma, seedling-structure, xx. 472.

Abietineae, vascular system of female ‘flower5 (*), xiii. 536.

Absciss-layer in leaves of Narcissus, Galan- thus, and Leucojum (*), xii. 151.

Acanthophoenix crinita, seedling-structure, xvii. 48.

Acer Pseudoplatanus, tricotyledonous em- bryos (*), xv i. 553.

Achillea Millefolium, mechanism of stomata (*), xvi. 342.

Achlya americana, var. cambrica, n. •var ., amputation of hyphae, effect of, xiii. 149 ; apogamy, xiii. 147 ; biological observa- tions, xiii. 138; cytology (*), xiii. 131, 150, 152; description, xiii. 135 ; fertiliza- tion (*), xiii. 159; gametangia, develop- ment (*), xiii. 139, 153; germination of oospheres (*), xiii. 143, 162; maturation of oospheres (*), xiii. 142, 160 ; myce- lium (*), xiii. 152 ; oospheres, develop- ment (*), xiii. 139, 153 ; zoospores, cytology (*), xiii. 152.

— de Baryana, fertilization (*), xviii. 552.

— polyandra, fertilization (*), xviii. 549.

Acremonium fimicolum,». sp., description (*),

xvi. 79.

Actea alba, embryology (*), xix. 450.

Actinococcus and Phyllophora (*), xiii. 253.

— description, xiii. 265.

— subcutaneus, anatomy and development (*), xiii. 255 ; description, xiii. 265.

Actinostele, definition, xvi. 522.

Actinostemma biglandulosa, stem-struc- ture (*), xiv. 639.

Actinostrobus, seedling-structure, xx. 472.

Adaptation shown by Erysiphe graminis under cultural conditions, endophytic,

xix. 444.

Adenostemma viscosum, fruit-dispersal (*),

xx. 31 1.

Aecidium, development in Gymnosporangium clavariaeforme, xviii. 341; in Phragmidium violaceum (*), xviii. 338.

— morphology of the, xviii. 353.

Aecidium graveolens, parasitism, etc. (*),

xii. 155.

Africa, plants of the northern temperate zone in their transition to the high moun- tains of tropical, xviii. 523.

Agaricus Bongardi, description, xviii. 480, 489.

Agaricus caesariatus , description, xviii. 482.

— campestris, proteases, xvii. 241 ; xix. 179.

— carptus , description, xviii. 483.

— cervicolor , description, xviii. 479.

— cincinnatus , description, xviii. 489.

— deglubens , description, xviii. 479.

— dulcamarus , description, xviii. 488.

— echinatus , description, xviii. 493.

— eriocephalus , description, xviii. 4 66.

— fastigiatus, description, xviii. 464, 495.

— Jibrosus , description, xviii. 464.

— frumentacea , description, xviii. 486.

— fumosopurpureus , description, xviii. 493.

— gratus , description, xviii. 498.

— hirsutus, description, xviii. 492.

— Hookeri, description, xviii. 493.

— hystrix , description, xviii. 483.

— lanuginosus, description, xviii. 468.

— lucifugus , description, xviii. 481.

— mammilaris , description, xviii. 498.

— maritimus , description, xviii. 471.

— obscurus , description, xviii. 482.

— oxyosmus, description, xviii. 493.

— perbrevis , description, xviii. 490.

— plumosus , description, xviii. 500.

— pyriodorus , description, xviii. 475.

— rimosus , description, xviii. 475.

— sabuletorum , description, xviii. 468.

— scaber , description, xviii. 474.

— Trinii, description, xviii, 470.

— umbratica, description, xviii, 467.

— 1 viscosissimus , description, xviii. 500.

— ( Hebeloma ) fuscodiscus, description, xviii. 487.

griseoscabrosus, description, xviii. 484.

ignobilisy description, xviii. 472.

mv.tatusy description, xviii. 496.

obscurusy description, xviii. 482.

stellatosporusy description, xviii. 469.

subochraceum , description, xviii. 475.

— { Inocybe ) alienellusy description, xviii. 489. asininusy description, xviii, 474.

— — asterosporusy description, xviii. 465.

caesariatus , description, xviii. 482.

'var.fibrillosusy description, xviii. 500.

calamistratusy description, xviii. 493.

capuclnus , description, xviii. 499.

carptus, description, xviii, 483.

Gurreyiy description, xviii. 495.

deglubens, description, xviii. 479.

descissusy description, xviii. 478.

destrictus, description, xviii. 480.

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Annals of Botany .

Agaricus ( Inocybe ) ( continued ) —

echinatus , description, xviii. 493.

euthelus , description, xviii. 476.

fasciatus, description, xviii. 468.

jlocculosus , description, xviii. 487.

■ fuegianus , description, xviii. 490.

— geophyllus , description (*), xviii. 477.

gomphodes , description, xviii. 499.

haemactus , description, xviii. 486.

hirsutus, description, xviii. 492.

• holophlebius , description, xviii. 490.

ineditus , description, xviii. 464.

lacerus, description, xviii. 483.

Icinuginosus , description, xviii. 468.

margarispora , description, xviii. 473.

maritimus , description, xviii. 471.

muticus , description, xviii. 485.

paludinellus , description, xviii. 468.

— — perbrevis, description, xviii. 490.

perlatus , description, xviii. 489.

relicinus , description, xviii. 488.

— — Renneyi, description, xviii. 472.

rimosus , description, xviii. 475.

rufoalbus , description, xviii. 471.

sambucinus , description, xviii. 477.

scaber , description, xviii. 474.

■ schistus , description, xviii. 501.

ser'vatus , description, xviii. 495.

sindonius , description, xviii. 478.

squamiger , description, xviii. 498.

■ strigiceps, description, xviii. 499.

trechisporus , description, xviii. 468.

Trinii , description, xviii. 470, 481.

— ‘tw. rubescens , description, xviii. 481.

'vatricosus , description, xviii. 491.

Victoriae, description, xviii. 490.

'violaceifolius , description, xviii. 482.

Whitei , description, xviii. 478.

— ( Lepiota ) haematophyllus , description, xviii. 493-

— (Psalliota) campestris, peptolysis, xviii. 312 ; peptonization, xviii. 309 ; protease, nature of, xviii. 314.

echinatus , description, xviii. 493.

Agathis alba, wounds (*), xx. 387.

Agave Rovelliana, seedling-structure, xvii. 42.

— spicata, seedling-structure, xvii. 41. Aglaonema, antipodal cells (*), xiv. 1 1 ; endo- sperm (*), xiv. 10; ovule development (*), xiv. 8.

— commutatum, embryo (*), xvii. 676 ; embryo-sac (*), xvii. 669, endosperm (*), xvii. 674.

— pictum, embryo-sac, xvii. 677.

Aglaozonia, germination of zoospores (*),

xii. 87.

Aizoaceae, seedling-anatomy, xx. 474. Albuca Nelsoni, seedling-structure (*), xvii. 9, 23.

Albumin, digestion of, xvii. 254 ; effect of desiccation upon coagulability of, xiv. 307. Albuminous cells of phloem of Pinus (*), xv. 600.

Alcohol-producing enzyme of yeast, xi. 555 ; xii. 491.

Algae, accumulation of starch in marine, xv. 678 ; effect of nitrates on carbon-assimila- tion of marine, xv. 669 ; methods for use in culture of (*), xiii. 563 ; periodical development in artificial waters at Kew, xvii. 274; polymorphism and evolution of green, xi. 97.

— and the Flagellata, the primitive (*), xiv. 647 ; xv. 192.

Alga-like fern prothallium, xvi, 165.

Allen, C.E. — Nuclear Division in the Pollen- mother-cells of Lilium canadense (Plates Vl-IX), xix. 189.

— The Early Stages of Spindle-formation in the Pollen-mother-cells of Larix (Plates XIV and XV), xvii. 281.

Allionia albida, seedling-structure, xx. 473.

Allium angulosum, seedling-structure, xvii. 32.

— ascalonicum, seedling-structure, xvii. 31.

— Gepa, seedling-structure, xvii. 31.

— neapolitanum, seedling-structure (*), xvii.

31.

— Porrum, seedling-structure, xvii. 31.

— serufschanicum, seedling-structure, xvii. 31-

Aloe Buchanii, seedling-structure, xvii. 38.

Alsophila excelsa, structure (*), xvii. 710.

Alstroemeria, seedling-structure, xvii. 41.

Alternation of generations, xii. 593.

— general cytology and fertilization of the Uredineae (*), xviii. 323.

— in the Archegoniatae, xii. 583 ; in the Dictyotaceae, xviii. 155 ; in the Thallo- phyta, xii. 570.

Amarantaceae, seedling-structure, xx. 474.

Amaranthus hypochondriacus, seedling-struc- ture, xx. 474.

Amaryllidaceae, seedling-structure, xvii. 40.

Amaryllis, mechanism of stomata, xvi. 339.

Ambatch, plants allied to the, xvii. 450.

America, ‘ Sadd ’ in, xvi. 512.

Ammonium carbonate, effect of solution of, on nuclear division, xix. 529.

— nitrate, effect of on carbon-assimilation of marine algae, xv. 673.

Amomum angustifolium, seedling-structure, xvii. 50.

Amputation of hyphae of Achlya americana var. cambrica, effect of, xiii. 149.

Amylase, occurrence in Polyporus squamo- sus, xx. 50.

Anacampseros papyracea, protective adapta- tions (*), xx. 126.

Ananas sativus, proteases, xix. 177.

Anatomy, systematic value of vascular, xvii. 73i-

Andrews, F. M. — The Effect of Gases on Nuclear Division (one text-figure), xix. 521.

Anemarrhena asphodeloides, seedling-struc- ture (*), xiv. 633 ; xvii. 4, 26.

Index to Vo/s. XI-XX.

Anemia, comparative anatomy of species of (*), xv. 385 ; habit, xv. 379 ; petiole- structure and node (*), xv. 382 ; root- structure, xv. 385 ; seedling anatomy (*),

xv. 388 ; stem-structure (*), xv. 379.

— hirsuta, anomalous leaf of, xv. 765. Anemone coronaria, seedling-structure, xvii.

56.

Angiopteris evecta, arrangement and struc- ture of the vascular strands (*), xvi. 371 ; leaf-structure (*), xiv. 5 T9; morphology (*), xiv. 501 ; root-structure (*),xiv. 516 ; secondary thickening (*), xvi. 173, 388 ; stem-structure, xiv. 505, 512.

Angiosperm, Peperomia the most primitive type of, xv. 113.

Angiosperms, double fertilization, xiv. 689 ; histology of sieve-tubes, xvii. 265 ; phylo- geny, xix. 457; xx. 173 ; sporangial integu- ments, morphology, xvi. 596 ; stomata, mechanism (*), xvi. 353.

Anhalonium, morphology of embryo and seedling (*), xii. 462.

Anixiopsis stercoraria, description (*), xvi. 67.

Anthericum Liliago, seedling-structure (*), xvii. 29.

Antheridia of Grinnellia americana (*), xi, 12 ; of Helminthostachys zeylanica (*),

xvi. 38 ; of Ophioglossum pendulum (*),

xvi. 29.

Antherozoids of Chara (*), xviii. 245 ; Dic- tyota (*), xii. 545 ; Fegatella conica, explosive discharge (*), xvii. 270 ; Gymno- sperms, xi. 344 ; Taonia (*), xi. 545.

— of ferns, chemotaxis, xiv. 543 ; physiology,

xiv. 543 ; starch in vesicle, xiv. 579 ; swarm period, length of, xiv. 575 ; withdrawal of water from, xiv. 572.

Anthoceros laevis, apospory in (*), xv. 503.

— multiple chromatophores, xx. 322. Anthurium Bakerianum, seedling-structure,

xvii. 2, 40, 4 5.

— development of ovule (*), xiv. 12.

- — violaceum var. leucocarpum, embryo (*), xix. 334 ; embryo-sac (*), xix. 331 ; endo- sperm (*), xix. 333 ; fertilization (*), xix. 332; flower (*), xix. 330; ovule (*), xix. 330.

Antipodal cells of Aglaonema (*), xiv. 11 ; Lysichiton (*), xiv. 15 ; Triglochin mari- timum (*), xiv. 99.

Anti-ferment reaction in tropistic move- ments of plants, xix. 75.

Antiseptics and proteases, xvii. 602. Antithamnion Plumula, cystocarp develop- ment (*), xi. 356.

Aphanochaete, observations on species of (*), xvi. 403 ; classification, xvi. 409.

Aplectrum hyemale, morphology (*), xiii. 6 ; mycorhiza (*), xiii. 7 ; structure of vegeta- tive organs (*), xiii. 8, et seq.

— spicatum, morphology (*), xiii. 6 ; myco-

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rhiza (*), xiii. 7 ; structure of vegetative organs (*), xiii. 8, et seq.

Apogamy in Achlya americana var. cambrica, xiii. 147 ; ferns, xii. 251.

Apogeotropic roots of Bowenia spectabilis (*),

xii. 480.

Apospory in Anthoceros laevis (*), xv. 503. Aquatic plants, action of cold and of sunlight upon, xii. 363.

Aquilegia canadensis, embryology (*), xix. 455-

Araceae and other Monocotyledons, relation between, xx. 424.

— and Piperaceae, comparison, xx. 417.

— development of flower and sexual organs (*), xiv. 1.

— studies on the (*), xiv. 1 ; xvii. 665 ; xix. 329.

Arachniotus candidus, description (*),xvi. 62.

— citrinus, n. sp., description (*), xvi. 62. Arachnomyces nitidus, n. sp ., description (*),

xvi. 68.

— sulphureus, n. sp., description (*), xvi. 68.

— n. gen., description, xvi. 68. Araucariaceae, persistence of leaf-traces in,

xv. 423, 547 ; vascular system of female flower (*), xiii. 527.

Araucaria, wood of a Cretaceous plant allied to (* +), xx. 388 ; wound reaction (*), xx. 338.

— Bidwillii, vascular system of female flow- ers (*), xiii. 532.

— Cookii, vascular system of female flowers (*), xiii. 527.

Araucarioxylon antiquum (+), primary wood,

xiii. 617 ; secondary \yood, xiii. 618.

— fasciculare (t), primary wood, xiii. 616; secondary wood, xiii. 617.

Araucarioxylons, primary wood of (t), xiii.

615.

Arber, E. A. N. — On some species of La- genostoma : A T ype of Pteridospermous Seed from the Coal Measures (+), xix. 326.

— On the Effect of Nitrates on the Carbon- Assimilation of Marine Algae, xv. 669.

— On the Effect of Salts on the Assimilation of Carbon Dioxide in Ulva latissima,xv. 39.

— On the Past History of the Ferns (one text-figure) (+), xx. 215.

— On the Roots of Medullosa anglica (Plate XX) (f), xvii. 425.

Arceuthobium occidentale, dissemination (*), xix. 100; germination (*), xix. 104. Archangiopteris Henry i, histology, xix. 266; leaf-morphology (*), xix. 260; sori and sporangia, xix. 269 ; stipule-structure (*), xix. 266 ; vascular system of petiole (*), xix. 262 ; vascular system of stem (*), xix. 261.

Archegonia of Helminthostachys zeylanica (*), xvi. 39; Ophioglossum pendulum (*),

xvi. 30 ; Pinus Strobus, development (*), xv. 436; Tsuga canadensis (*), xiv. 583.

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Annals of Botany.

4

Archegoniatae, alternations of generations in the, xii. 583.

Archegonium, origin of (*), xvii. 477.

Areca sapida, seedling-structure, xvii. 48. Argemone cambrica, description, xx. 343.

— cambro-Britanica lutea , description, xx. 343-

— mexicana , description, xx. 359.

Arisaema speciosum, seediing-structure, xvii.

'45-

Aroideae, seedling-structure, xvii. 44. Arthrobotrys oligospora, description (*), xvi. 8 3.

— superba, description (*), xvi. 83. Arthropodium cirrhatum, seedling-structure

(*), xvii. 30.

Arthur, J. C. — The Movement of Proto- plasm in Goenocytic Hyphae (with Wood- cuts 8-1 1), xi. 491.

Arum maculatum, course of bundles in stem (*),xii. 406; external morphology (*), xii. 399 ; internal morphology (*), xii. 404 ; seedling development (*), xii. 399 ; seedling-structure (*), xii. 408 ; xvii. 44. Asci and sporangia, cell-division in (*),xiii. 467. Asclepias Cornuti, development of pollinium and sperm-cells (*), xvi. 123. Ascobolaceae, descriptions of coprophilous (*), xv. 326 ; xvi. 66.

Ascobolus perplexans, n. sp.} description (*), xv. 328.

Ascocarp, morphology of, xiv. 321.

— in Monascus, development and morpho- logy (*), xvii. 167.

Ascodesmis Volutelloides, n. sp., description (*), xvi. 61.

Ascomyceteae, coprophilous (*), xvi. 61. Ascomycetes, binu’cleate cells in the (*), xix. 325; descriptions of coprophilous (*), xv. 324 ; origin of the, xvii. 216 ; sexuality of the, xiii. 581.

Ascophaniis ryparobioid.es , description (*), xv. 327.

Asparagus decumbens, seedling-structure, xvii. 37.

— officinalis, digestion by leaves, xix. 160; seedling-structure, xvii. 37.

Aspergillus clavatus, description (*), xvi. 82. Asphodeline liburnica, seedling-structure (*), xvii. 26.

Asphodelus albus, seedling-structure, xvii. 27.

— cerasifer, seedling-structure, xvii. 27.

— fistulosus, seedling-structure, xvii. 27. Aspidium falcatum, seedling-structure (*),

xix. 397.

— Tsus-Simense, seedling-structure (*), xix. 378.

Asplenium bulbiferum, seedling-structure (*), xix. 376.

— ridus, seedling-structure (*), xix. 395. Assimilation, effect of temperature on, xvi.

59i.

— of carbon dioxide in Ulva latissima, effects of salts on, xv. 39.

Assimilatory pigments, bacteria with,xi. 486.

Astrophytum, morphology of seedling and embryo (*), xii. 457.

Atactostele. definition, xvi. 522.

Autolysis in Saccharomyces cerevisiae, xviii. 294.

Azolla caroliniana, mechanism of stomata, xvi. 339.

B.

Bacillus from the Thames, a violet (*), xii. 59.

— hirtus, cell-contents (*), xx. 254 ; cell- division (*), xx. 248 ; characters (*), xx. 255; ciliation (*), xx. 252 ; cultures (*), xx. 237 ; development of spores (*), xx. 250; germination of spores (*), xx. 236; growth (*), xx. 241 ; motility, xx. 252 ; spores (*), xx. 234.

— membranaceus amethystinus, life-history (*),xx. 59.

Bacteria of the Thames (*), xii. 287 ; xiii. 197.

— luminous, xvi. 587.

— putrefactive, proteolytic action, xvi. 14.

— with assimilatory pigments, xi. 486.

Bacteriology, recent researches in, xix. 5.

Bacterium hirtum , cell-contents (*), xx. 254 ;

cell-division (*), xx. 248 ; characters (*), xx. 255 ; ciliation (*), xx. 252 ; cultures (*), xx. 237 ; development of spores (*), xx. 250; germination of spores (*), xx. 236 ; growth (*), xx. 24 t ; motility, xx. 252.; spores (*), xx. 234.

— vermiforme, fermentation produced by, xi. 341.

Balfour, I. B. — Richard Spruce (with Portrait), xiv. xi.

Barber, C. A. — Cupressinoxylon vectense ; a F ossil Conifer from the Lower Greensan d of Shanklin in the Isle of Wight (Plates XXIII and XXIV) (f), xii. 329.

Barbula erythrodonta , description (*), xvii. 1 14-

Barker, B. T. P. — A Fragrant ‘Myco- derma’ Yeast, Saccharomyces anomalus (Plate XIII), xiv. 215.

— Sexual Spore-formation among the Sac- charomyces, xv. 759.

— The Morphology and Development of the Ascocarp in Monascus (Plates XII and XIII), xvii. 167.

Barley, method of obtaining Smut in, xii. 566.

Barnard, J. E., and Macfadyen, A. — On Luminous Bacteria, xvi. 587.

Bartonia lanceolata, general description (*), xx. 442 ; leaf-structure (*), xx. 446 ; root-structure, xx. 445 ; stem-structure,

' xx. 445.

— verna, general description (*), xx. 442 ; leaf-structure, xx. 444 ; root-structure, xx. 443 ; stem-structure (*), xx. 443.

Basidiomycetes, sexuality of, xiii. 585.

Basidium, nuclear fusion in, xviii. 361.

Index to Vais. XI-XX.

5

■Beer, R. — On the Development of the Spores of Helminthostachys zeylanica (Plates XI and XII), xx. 177.

— On the Development of the Spores of Riccia glauca (Plates XXI and XXII), xx. 275.

Bengal, swamp vegetation of Lower, xvi. 509.

Bennettites Gibsonianus, affinities (+), xiv.

717.

Benson, M. — Telangium Scotti, a new species of Telangium (Calymmatotheca), showing structure (Plate XI and one text-figure) (+), xviii. i6r.

— The Fructification of Lyginodendron old- hamium (with one text-figure) (+), xvi. 575.

Bentham, George, Biographical Memoir (Portrait), xii. lx.

Berkeley, Miles Joseph, Biographical Sketch, xi. lx.

Berridge, E. M. — On two new Specimens of Spencerites insignis (Plates XI and XII, and three text-figures) (t), xix. 273.

Bertholletia excelsa, germination of seeds (*)> xv. 99.

Bertrand, C. E.— On the Structure of the Stem of a Ribbed Sigillaria (f), xiii.Tcy.

Betula alba, proteolytic enzymes, xvii. 615.

Biastrepsis in its relation to Cultivation, xiii. 395.

Bifff.n, R. H. — A Fat-Destroying Fungus (Plate XIX), xiii. 363.

— Note on some Grafting Experiments, xvi. 174-

— On the Biology of Bulgaria polymorpha (Plate VII), xv. 1 19.

— The Coagulation of Latex, xii. 165.

— The F unctions of Latex, xi. 334.

Bignonia capreolata, root-structure, xii. 327.

— Unguis, root-structure (*), xii. 325.

— venusta, root-structure, xii. 326.

Binucleate cells in the Ascomycetes (*), xix.

325-

Biologic Forms of the Erysiphaceae, cultural experiments with, xviii. 320 ; xix. 125.

Biology of Achlya americana var. cambrica, xiii. 1 3 1.

Blackman, F. F. — Optima and Limiting Factors (two text-figures), xix. 281.

■ — The Primitive Algae and the Flagellata. An account of modern work bearing on the Evolution of the Algae (two text- figures), xiv. 647.

— Id. xv. 192.

— and Matthaei, G. L. C. — On the Reaction of Leaves to Traumatic Stimulation (Plate XXIX and five text-figures), xv. 533.

Blackman, V. H. — On the Fertilization, Alternation of Generations, and General Cytology of the Uredineae (Plates XXI- XXIV), xviii. 323.

— and Fraser, H. C. I. — Fertilization in Sphaerotheca (one text-figure), xix. 567.

Blackman, V. H., and Fraser, H. C* I.-* Further Studies on the Sexuality of the Uredineae (Plates III and IV), xx. 35.

Blechnum brasiliense, seedling-structure,

xix. 376.

Bloomeria aurea, seedling-structure, xvii. 32.

Bonnemaisonia asparagoides, cystocarp de- velopment (*), xi. 348.

Boodle, L. A. — Comparative Anatomy of the Hymenophyllaceae, Schizaeaceae, and Gleicheniaceae, I. On the Anatomy of the Hymenophvllaceae (Plates XXV- XXVII), xiv. 455.

— Id. II. On the Anatomy of the Schizaea- ceae (Plates XIX-XXI), xv. 359.

— Id. III. On the Anatomy of the Gleiche- niaceae (Plates XXXVI II and XXXIX), xv. 703.

— Id. IV. Further Observations on Schizaea (three text-figures), xvii. 51 1.

— Lignffication of Phloem in Helianthus,

xx. 319.

— On an Anomalous Leaf of Anemia hirsuta, xv. 765.

— On Lignffication in the Phloem of Helian- thus annuus, xvi. 180.

— On some Points in the Anatomy of the Ophioglosseae (Plate XX), xiii. 377.

— On the Occurrence of Secondary Xylem in Psilotum (Plate XXXIII and seven text-figures), xviii. 505.

— On the Structure of the Stem in two Species of Lycopodium, xiv. 315.

— Stem-Structure in Schizaeaceae, Gleiche- niaceae, and Hymenophyllaceae, xiii. 624.

— The Monoecismof Funaria hygrometrica (four text-figures), xx. 293.

Botrychium, imperfect sporangia, xv. 256.

— Lunaria, root-structure (*), xiii. 381.

— virginianum, gametophyte, xi. 481 ; spore- formation (*), xix. 465.

Botryosporium causing disease of Trade- scantia (*), xiv. 27.

— foecundissimum, description (*), xvi. 8r.

Botrytis pilulifera, description (*), xvi. 81.

Bowenia spectabilis, peduncle-structure, xi.

4 10; sporophyll-structure (*), xii. 219; structure (*), xiv. 159.

seedling-anatomy (*), xii. 475 ; leaf

(*), xii. 485 ; root (*), xii. 478 ; seed (*), xii. 477 ; stem (*), xii. 484 ; transition from root to stem (*), xii. 483.

Bower, F. O. — Imperfect Sporangia in certain Pteridophytes. Are they vestigial ? xv. 225.

— Note on abnormal Plurality of Sporangia in Lycopodium rigidum (one text-figure), xvii. 278.

- — Ophioglossum simplex, Ridley (Plate XV), xviii. 205.

• — Studies in the Morphology of the Spore- Producing M embers. Part III. Marat- tiaceae, xi. 488.

6

Annals of Botany .

Bower, F. O. Id. Part IV. Leptosporangiate Ferns, xiii. 320.

— Id. Part V. General Comparisons and Conclusions, xvii. 618.

Brachyphyllum, wound reactions (* +), xx.

383; structure, xx. 384.

Brannon, M. A. — The Structure and De- velopment of Grinnellia americana (Plates I-IV), xi. 1.

Bravoa geminiflora, seedling- structure, xvii.

41.

Brebner, G. — On the Anatomy of Danaea and other Marattiaceae, xv. 777.

— Id. (Plates XXII and XXIII and two text-figures), xvi. 517.

Bridging species and their significance, xix.

42.

Britain, Jurassic Flora of (t), xiii. 610. British Flora, Geological History, xii. 243. Brodiaea lactea, seedling-structure, xvii. 32. Bromelin, proteolytic action of, xvi. 4. Bromes, germination, xvi. 257 ; rusts of the, xvi. 238.

Bromus, anatomy of the first green leaf, xvi.

305.

— and Puccinia dispersa, xv. 560 ; xvi. 233*

— and their brown rust, species of, xix. 19. Brown, H. T., and Escombe, F. — Static

Diffusion of Gases and Liquids in Relation to the Assimilation of Carbon and Trans- location in Plants, xiv. 537.

Bryophyta, conducting tissue-system in (*), xv. 1 ; nature and origin of, xv. 30. Bulbine annua, seedling-structure, xvii. 9, 28.

Bulbs, movements of in the soil, xx. 429. Bulgaria polymorpha, action of on wood, (*), xv. 123 ; biology of (*), xv. 119; de- velopment (*), xv. 1 21 ; structure (*), xv. 121.

Buller, A. H. R. — Contributions to our knowledge of the Physiology of the Sper- matozoa of Ferns, xiv. 543.

— The Enzymes of Polyporus squamosus,

XX. 49.

— The Reactions of the Fruit-bodies of Lentinus lepideus to External Stimuli (Plates XXIII-XXV), xix. 427.

Bunt, preparation of, for class purposes, xi. 333*

Burkill, I. H.— Changes in the Sex of Willows, xii. 557.

— On Pelargonium rapaceum, xiii. 181.

— The Ovary of Parnassia palustris (one text-figure), xv. 186.

— and Willis, J. C. — Flowers and Insects in Great Britain. Part II. Observations on the Natural Orders Dipsaceae, Plum- baginaceae, Compositae, Umbelliferae, and Cornaceae, made in the Clova Moun- tains, xvii. 313.

— Id. Part III, Observations on the most j

Specialized Flowers of the Clova Moun- tains, xvii. 539.

Burns, G. P. — Heterophylly in Proser- pinaca palustris (Plate XXXVIII), xviii. 579-

Burrage, J. H. — On Nuytsia floribunda (one text-figure), xiv. 312.

C.

Cacao, on Diplodia cacaoicola, a parasitic fungus on (*), xv. 683.

Cactaceae, anatomy (*), xii. 433; colour- factors of embryo, xii. 434 ; ecology, xii. 423 ; form-factors of embryo (*), xii. 438 ; germination (*), xii. 429 ; phylogeny of genera, xii. 469 ; morphology (*), xii. 423 ; size-factors of embryo (*), xii. 436.

Calamitean root, papillae in the epidermoidal layer (* +), xviii. 645.

Calamite roots, epidermoidal layer of (* f), xvii. 792.

Calamites, infranodal organs (* +), xv, 135 ; primitive type of structure in (+), xv. 773 ; relation of root to stem (* +), xix. 61.

— pettycurensis, stem-structure (f), xv. 774.

Calanthe, localization of indigo-producing substance, xix. 307.

Calcium sulphate, effect of on carbon-assimi- lation in Ulva latissima, xv. 65.

Calleblepharis cillata, cystocarp develop- ment (*), xi. 354.

Callithamnion byssoides, cystocarp develop- ment (*), xi. 359; form of protoplasmic body, xii. 569.

— granulatum, cystocarp development (*), xi; 359-

Callitris, seedling-structure, xx. 472.

Callus of sieve-tubes of Pinus, formation (*), xv. 590; origin (*), xv. 597; value, xv. 605.

Caltha palustris, double-fertilization (*), xiv. 527 ; vermiform nuclei, xiv. 318.

Calymmatotheca , the fructification of Ly- gincdendron (* +), xvi. 575 ; xvii. 625.

— Telangium Scotti, n. sp., structure (* +), xviii. 161.

Calymperes Lindigii , description (*), xvii. 125.

Calypso borealis, morphology (*), xiii. 25 ; mycorhiza (*), xiii. 25 ; spontaneous varia- tions, xiii. 25.

— bulbosa, morphology (*), xiii. 25 ; my- corhiza (*), xiii. 25 ; spontaneous varia- tions, xiii. 25.

Campbell, D. H.— A peculiar Embryo-sac in Peperomia pellucida, xiii. 626.

— Germination of the Spores of Ophio- glossum, xx. 321.

— Multiple Chromatophores in Anthoceros, xx. 322.

— Studies on the Araceae, I. (Plates I— I II), xiv. 1.

— Id. II. The Embryo-sac and Embryo of

V

Index to Vols. X/-XX.

Aglaonema and Spathicarpa (Plates XXX- XXXII), xvii. 665.

Campbell, D. H. Id. III. (Plates XIV- XVII), xix. 329.

— Studies on the Gametophyte of Selaginella (Plate XIX), xvi. 419.

— The Development of the Flower and Embryo in Lilaea subulata (Plates I-IIl),

xii. 1.

— The Embryo-sac of Peperomia (Plate VI), xv. 103.

Canaries, the Statices of the, xx. 205, 301. Canna, seedling-structure, xvii. 50. Carbohydrates of Hyacinthus orientalis, re- serve, xiv. 155 ; of latex, xiv. 200. Carbon-assimilation, action of chloroform on, xii. 415.

— and translocation, static diffusion of gases and liquids in relation to, xiv. 537.

— of marine Algae, effect of nitrates on, xv. 669.

Carbon dioxide assimilation, effect of salts on in Ulva latissima, xv. 39 ; effect of tem- perature on, xvi. 591.

Carbon dioxide, effect of on nuclear division,

xix. 526 ; on streaming of protoplasm, xix. 526.

Cardiocarpon-bearing strobilus, a new (t), xiv. 160.

Cardiocarpus, morphology (* t), xvii. 457. Carica Papaya, proteases of, xix. 176. Carpophyll of Encephalartos (*), xv. 548. Caryophyllaceae, seedling-structure, xx. 474. Casein, digestion of, xvii. 254.

Cathcartia, descriptions of species, xx. 368 ; generic characters, xx. 367; key to species,

xx. 368.

— betonicifolia, description, xx. 369.

— Dela’vayi , description, xx. 351.

— integrifolia , description, xx. 352.

— ■ lancifolia , description, xx. 349.

— lyrata, description, xx. 369.

— polygonoides, description, xx. 369,

— villosa, description, xx. 368.

Cavers, F. — Explosive discharge of An- therozoids in Fegatella conica (one text- figure), xvii. 270.

— On the Structure and Biology of Fega- tella conica (Plates VI and VII and five text-figures), xviii. 87.

Cavity parenchyma, xv. 394.

Cedrus Deodara, seedling - structure, xx. 472.

Cell and nuclear division in Dictyota dicho- toma (*), xiv. 163.

Cell-division in asci and sporangia (*), xiii.

467 ; in Bacillus hirtus (*), xx. 248.

Cell, effect of centrifugal force on (*), xiii. 325; Chara, xiii. 346; Cladophora (*),

xiii. 327 ; Funaria leaves (*), xiii. 343 ; Nitella, xiii. 346; nucleus (*), xiii. 351; Spirogyra (*), xiii. 332 ; Tradescantia, staminal hairs (*), xiii. 337 ; Trichomanes

7

(*), xiii. 337; Vallisneria, xiii. 345; Vaucheria, xiii. 348.

Cellulose enzymes, xiii. 49.

— in xylem of woody stems (*), xviii. 121. Cell-walls, tensile strength of, xi. 585. Central American species of geophilous

Peperomias (*), xx. 407.

Centrifugal force on the cell, effect of (*), xiii. 325 ; Chara, xiii. 346; Cladophora (*), xiii. 327; Funaria leaves (*), xiii. 343; Nitella, xiii. 346; nucleus (*), xiii. 351; Spirogyra (*), xiii. 332; Tradescantia, staminal hairs (*), xiii. 337 ; Tricho- manes (*),xiii. 337; Vallisneria, xiii. 345 ; Vaucheria, xiii. 348.

Cephalocereus, morphology of embryo and seedling (*), xii. 450.

Cephalosporium succineum, n. sp., descrip- tion (*), xvi. 79.

Cephalotaxus, flower-morphology (*), xv. 637 ; vascular structure of ovule, xiv. 317.

— pedunculata, seedling-structure, xx. 471. Ceramium rubrum, form of protoplasmic

body, xii. 569.

— tenuissimum, cystocarp development (*), xi. 361.

Cerastites cambrica, description, xx. 343. Ceratopteris thalictroides, leaf-structure (*), xvi. 99 ; morphology (*), xvi. 96 ; root- structure (*), xvi. 109 ; sporangia, xvi. 1 14 ; stem-structure (*), xvi. 103; vascular system (*), xvi. no; vegetative buds (*),

xvi. 1 1 4.

Ceratozamia latifolia, structure of sporo- phyll, xii. 232.

— mexicana, structure of peduncle, xi. 41 1 ; structure of sporophyll (*), xii. 232.

— Miqueliana, structure of sporophyll, xii. 233-

Cereus, morphology of embryo and seed* ling (*), xii. 443.

Ceylon, foliar periodicity, xvi. 594. Chaetomium arachnoides, n. sp ., descrip- tion (*), xvi. 71.

— bostrychoides, description (*), xvi. 72.

— simile, n . sp., description (*), xvi. 71. Chaetophoraceae - Ulvaceae, polymorphism

and evolution, xi. 112.

Chaetostroma fimicolum, n. sp ., descrip- tion (*), xvi. 87.

Chamaerops Fortunei, seedling-structure,

xvii. 49.

— humilis, seedling-structure, xvii. 49. Chandler, S. E. — On the Arrangement of

the Vascular Strands in the ‘Seedlings’ of certain Leptosporangiate Ferns (Plates XVI1I-XX), xix. 365.

Characters, distribution of parental to the germ cells, xix. 246.

Chara, effect of centrifugal force on cell, xiii. 346 ; spermatozoid development (*), xviii. 245.

Cheirostrobus, a new type of fossil cone

8 Annals of Botany .

from the Calciferous Sandstone (t), xi. 168.

Cheirostrobus, n. gen., diagnosis (+), xi. 173.

■ — pettycurensis, n. sp. (t), affinities, xi. 174; description, xi. 173; peduncle, xi. 168; strobilus, xi. 169.

Chemotaxis and the dissociation theory, xiv. 562.

- — of Fern spermatozoa, xiv. 543.

Chenopodiaceae, seedling-structure, xx. 474.

Chick, E., and Tansley, A. G.— Notes on the Conducting Tissue-System in Bryo- phyta (Plates I and II), xv. 1.

On the Structure of Schizaea Malac-

cana (Plates XXV and XXVI and one text-figure), xvii. 493.

Chlamydomonas, phylogenetic relations (*), xiv. 656.

Chlamydomucor racemosus , description (*), xvi. 76.

Chlorides, effect of on carbon-assimilation in Ulva latissima, xv. 53.

Chloroform, action of on C02-assimilation, xii. 415 ; effect of on nuclear division, xix. 528.

Chlorogalum pomeridianum, seedling-struc- ture (*), xvii. 28.

Chlorophyceae, phylogenetic relations, xiv. 649; polymorphism and evolution, xi. 97-

Chloroplast and indigo- producing substance, supposed relation between, xix. 308.

Chodat, R. — On the Polymorphism of the Green Algae and the Principles of their Evolution, xi. 97.

Chromatophores in Anthoceros, multiple, xx. 322.

Church, A. H. — Note on Phyllotaxis (two text-figures), xv. 481.

— The Polymorphy of Cutleria multifida (Plates VII-IX), xii. 75.

— The Principles of Phyllotaxis (seven text- figures), xviii. 227.

Cibalocoryne , description, xi. 240.

— ' viscosula , description, xi. 252.

Cicuta maculata, infranodal organs (*), xv. t4i.

Ciliation in Bacillus hirtus (*), xx. 252.

Circinella umbellata, description (*),xvi. 78.

Cladophora, effect of centrifugal force on cell (*), xiii. 327.

Cladorhinum foecundissimum , description (*), xvi. 81.

Clavaria, description (*), xi. 240, 253, 264, 286.

— epipbylla , description (*), xi. 272.

— ferruginea, description (*), xi. 276.

— mitrata , description (*), xi. 266.

var. viridis , description (*), xi. 269.

— nigrita, description, xi. 249.

• — ophioglossoides , description (*), xi. 241, 247.

— phalloides , description (*), xi. 272.

Clavaria serpentina , description (*), xi. 269.

— simplex hirsuta , description (*), xi. 241.

— spathulata , description (*), xi. 255.

— tremula , description (*), xi. 288.

— viridis, description (*), xi. 269.

Clifford, J. B. — Notes on some Physio- logical Properties of a Myxomycete Plas- modium (woodcuts 3-5), xi. 179.

Clypeus squarrosula, description, xviii. 499.

— subrimosas , description, xviii. 465.

Coagulability of albumin, effect of desicca- tion on, xiv. 307.

Coagulase, occurrence of in Polyporus squamosus, xx. 56.

Coagulation of latex, xii. 165; xiv. 195.

Coal Balls in the Lower Coal Measures (t), xvi. 603.

Coal Measures, occurrence of nodular con- cretions in (t), xvi. 603.

Cocos nucifera, proteolytic action of ‘ milk ’ of, xvi. 9.

Codium, structure (*), xi. 588.

Coenocytic hyphae, movements of proto- plasm in (*), xi. 491.

Cold on aquatic plants, action of sunlight and of, xii. 363.

— effect of on nuclear division, xix. 528.

Colletotrichum falcatum, causing ‘rind’

disease of sugar-cane (*), xvii. 383.

Colour-factors of embryo of Cactaceae, xii. 434-

Compositae, insects and flowers, xvii. 321.

Conducting strands of Liverworts (*), xv. 4.

— tissue-system in Bryophyta (*), xv. 1 ; nature and origin of, xv. 30.

Conidia formation in Pythium ultimum, xv. 278.

Coniferae : female flower, structure (*), xiv. 39 ; female flower, vascular system (*), xiii. 527 ; red-wood, formation of (*), xx. 201 ; sporangial integuments, morphology of, xvi. 597.

Conjugatae, observations on (*), xii. 29 ; phylogeny (*), xii. 54.

‘ Conjugate ’ division in the Uredineae (*), xviii. 345.

Conjugation in the Conjugatae (*), xii. 29.

Convallaria majalis, raphides, xii. 149.

Copeland, E. B. — The Mechanism of Stomata (Plate XIII), xvi. 327.

Coprinus velox, description, xvi. 61.

Coprophilous Fungi (*), xv. 313, xvi. 57; distribution, xv. 322; morphology, spore- germination, &c., xv. 314; systematic, xv.

323-

Coptis trifolia, mycorhiza, xiii. 30.

Coralloid roots of Obolaria virginica (*), xi. 377-

Cordyceps and Elaphomyces, connexion be- tween, xv. 525.

— ophioglossoides; asci and spores, develop- ment and structure (*), xv. 522 ; stroma, anatomy of sterile part (*), xv. 524.

Index to Vo Is. XI-XX.

Cordyline australis* seedling-structure, xvii. 34-

Cornaceae, insect visitors, xvin. 343.

Cornus stolon ifera, infranodal organs (*),

xv. 1 4 2.

Correlation, influence of on size of leaves (*), xx. 79.

— of growth of roots and shoots, xv. 615 ; under influence of injuries, xi. 509, xii. 117.

Corynocarpus, anatomy (*), xvii. 748; charac- ters of genus, xvii. 752 ; economics, xvii. 755 ; history, xvii. 743, 745 ; leaf-structure (*), xvii. 749 ; stem-structure (*), xvii. 750.

— on the genus, xviii. 179.

— dissimilis, description, xvii. 754.

• — laevigata, description (*), xvii. 752; edible fruit, xvii. 757.

— similis, description (*), xvii. 753. Cotyledons, abnormal number of in Acer

Pseudoplatanus (*), xvi. 553; homology,

xvi. 556 ; xvii. 70.

— of Cycas revoluta and Ginkgo biloba (*),

xvii. 789.

— of Monocotyledons, homology, xvii. 70. Cradein of Ficus Carica, proteolytic action,

xvi. 7.

Crambe maritima, proteolytic enzymes, xvii. 614.

Crossland, C. — Note on the Dispersal of Mangrove Seedlings (one text-figure), xvii. 267.

Cryptomeria japonica, archegonia (*), xviii. 429 ; embryo (*), xviii. 434 ; female game- tophyte (*), xviii. 423; fertilization (*), xviii. 432; malegametophyte(*), xviii. 419 ; vascular system of female flowers (*), xiii. 54

Cucurbitaceae, distribution of statoliths, xviii. 653.

Cucurbita Pepo, var. ovifera, digestion by leaves, xix. 160.

Cudonia , description, xi. 259, 285.

— aquatica , description (*), xi. 292.

— circinans , description (*), xi. 261.

— lutea , description (*), xi. 262.

— marc i da, description (*), xi. 291. stagnalis , description, xi. 293.

Cudoniella , description, xi. 285.

— aquatica , description (*), xi. 292.

— fructigena , description, xi. 294. marcida , description (*;), xi. 291.

— stagnalis , description, xi. 293.

— verpoides, description, xi. 294.

Cultivation, on Biastrepsis in its relation to,

xiii. 395.

Culture of Algae, methods (*), xiii. 563. Cuphea Bombonasae, n. sp., description (*),

xvii. 16 1.

— epilobiifolia var. Caquetae, n. var., de- scription (*), xvii. 1 6 1.

— Heteranthus section : biology, xvii. 163 ; geography, xvii. 162; pollination, xvii. 163 ; taxonomy (*), xvii. 159.

9

Cuphea tarapotensis, n. sp ., description (*), xvii. 160.

— tetrapetala var. Cosangae, n. var., descrip- tion (*), xvii. 1 6 1.

Cupressineae, vascular system of female ‘flower’ (*), xiii. 542.

Cupressinoxylon vectense (t), annual rings (*), xi5. 337; bordered pits (*), xii. 348; medullary rays (*), xii. 353 ; medullary sheath and pith (*), xii. 343 ; resinous parenchyma (*), xii. 356 ; tracheides (*), xii. 345.

Cupressus Lawsoniana, seedling-structure, xx. 472 ; vascular system of female flowers (*), xiii. 542.

— pisifera, seedling-structure, xx. 472. Cutleria multifida, germination of oospores

(*), xii. 85; parthenogenesis (*), xii. 79; phylogeny, xii. 103 ; physical environment, relation to, xii. 96 ; polymorphy (*), xii. 75; seasonal dimorphism (*), xii. 92; sexuality, theory of, xii. 102.

Cyathea Brunonis, structure (*), xvii. 707. Cyatheaceae, anatomy (*), xv. 776 ; xvii.

705.

Cyathodium, external form (*), xix. 413 ; involucre (*), xix. 415; morphology (*),

xix. 4T1; sexual organs (*), xix. 415; structure (*), xix. 413.

Cycadaceae ; axial structures, origin (* +), xx. 135; foliar structures, origin (* +),xx. 149 ; habit and structure (*), xx. 129; origin,

xx. 129; peduncle, anatomy (* +), xi. 399; sporangial integuments, morphology, xvi. 597 ; sporophylls, structure (*), xii. 203 ; structure, xvi. 597, xx. 129.

Cycadean integuments, double nature of (t), xix. 561.

— sporangia, development and morphology (*), xi. 42 r, xiv. 281.

— structures, origin (* +), xx. 135. Cycadofilices, structure of Medullosa anglica

a new representative of (+), xiii. 183. Cycads, ovule of the (*), xvii, 463.

Cycas circinalis, sporophyll - structure (*), xii. 215.

- — revoluta, cotyledons (*), xvii. 789 ; sper- . matozoids, xi. 344; sporophyll-structure (*), xii. 21 1 ; vascular bundle (*), xi. 404. Cyclamen, seedling-morphology, xx. 423. Cyperaceae, comparative anatomy and phylogeny (*), xx. 1.

— floral axis, morphology and anatomy (*), xx. 23 ; leaf, anatomy (*), xx. 22 ; insertion, xx. 22; morphology, xx. 21; stelai development, dominance in, xx. 23.

— phylogenetic considerations : inter-rela- tionships, xx. 25 ; phylogeny of Mono- cotyledons, bearing upon the, xx. 26 ; position among the Monocotyledons, xx. 26.

— rhizome : amphivasae (*), xx. 6 ; centri- vasae (*), xx. 7 ; descriptive table, xx.

IO

Annals of Botany.

12 ; generic key, xx, 9 ; morphology, xx. 5 ; root-structure, xx. 3.

Gyperaceae, stem, aerial ; apical growth, xx. 1 1 ; axillary buds, xx. 21 ; cambium (*), xx. 18; cortical bundles (*), xx. 20; course of bundles (*), xx. 18; descriptive table, xx. 16 ; morphology, xx. 11 ; nodal com- plexes (*), xx. 18 ; scapose type, xx. 21 ; structure of the Ghlorocyperaceae (*), xx. 14 ; structure of the Sclerocyperaceae (*), xx. 15.

Cypripedium acaule, mycorhiza, xiii. 24 ; root-structure, xiii. 24.

— hirsutum, mycorhiza, xiii. 24.

— parviflorum, mycorhiza, xiii. 23; root- structure, xiii. 23.

— pubescent , mycorhiza, xiii. 24.

Cystocarp development in Delesseria alata

(*), xii. 183 ; Delesseria Hypoglossum (*), xii. 186 ; Delesseria ruscifolia (*), xii. 188 ; Delesseria sanguinea (*), xii. 174; Deles- seria sinuosa, xii. 189; Grinnellia ameri- cana (*), xi. 14 ; Nemalion multifidum (*), xviii. 617; Nitophyllum Hilliae (*), xii. 193 ; Nitophyllum laceratum (*), xii. 192 ; Rhodymeniales (*), xi. 347; xii. 175.

Cystocarp formation in Harveyella mirabilis (*), xiii. 90.

Cytology of Achlya americana var. cambrica (*), xiii. 13 1, 150; gametophyte genera- tion of the Dictyotaceae (*), xviii. 183 ; Pythium ultimum (*), xv. 269 ; tetra- sporangium and germinating tetraspore of the Dictyotaceae (*), xviii. 141; Uredineae (*), xviii. 323. See also nuclear division.

Czapek, F. — The Antiferment Reaction in Tropistic Movements of Plants, xix. 75.

D.

Dahlia variabilis, proteolytic enzymes, xvii. 610.

Dalbergia paniculata, stem-anatomy, xv. 183.

Dale, E.— I ntumescences of Hibiscus viti- folius, xiii. 622.

— Observations on the Gymnoascaceae (Plates XVII and XVIII), xvii. 571.

— - On the Origin, Development, and Mor- phological Nature of the aerial Tubers in Dioscorea sativa (Plate XXVI), xv. 491.

Danaea and other Marattiaceae, anatomy of, xv. 777 ; xvi. 517.

— simplicifolia, development of vascular system (*), xvi. 523.

Darbishire, O. V. — Observations on Mam- millaria elongata (Plates XXV and XXVI), xviii. 375.

— On Actinococcus and Phyllophora (Plate XV and seven text-figures), xiii. 253.

Darwin, Charles, botanical work of (Por- trait), xiii. ix.

Darwin, F. — On Geotropism and the Localization of the Sensory Region (Plate XXIX), xiii. 567.

Darwin, F. — The Botanical work ofDarwin (Portrait), xiii. ix.

— and Pertz, D. F. M. — On the artificial Production of Rhythm in Plants, with a Note on the Position of the Maximum Heliotropic Stimulation (four text- figures), xvii. 93.

Dasya coccinea, form of the protoplasmic body, xii. 569.

Date, incapacity of endosperm of, for self- digestion, xx. 61.

Davallia aculeata, structure (*). xvii. 712.

— pinnata, structure (*), xvii. 712.

— repens, structure (*), xvii. 715, 729.

— speluncae, structure (*). xvii. 692, 724,

729. #

— tenuifolia, structure (*), xvii. 716, 723, 729. Davis, B. M. — Nuclear Studies on Pellia

(Plates X and XI), xv.147.

— The Origin of the Archegonium (two text-figures), xvii. 477.

Dawson, M. — On the Biology of Poronia punctata (Plates XIV and XV), xiv. 245.

— On the Economic Importance of ‘ N bra- gin,’ xv. 5 1 r.

— On the Structure of an Ancient Paper, xii. hi.

de Fraine, E., and Hill, T. G. — On the Seedling-structure of Gymnosperms, xx. 471.

Delesseria alata, cystocarp development (*), xii. 183.

— Hypoglossum, cystocarp development (*), xii. 186.

— ruscifolia, cystocarp development (*), xii. 188.

— sanguinea, cystocarp development (*), xii. 174.

— sinuosa, cystocarp development, xii. 189. Delesseriaceae, cystocarp development (*),

xii. 175.

Deiitschia insignis, description (*), xv. 344.

— moravica, description (*), xv. 343.

— Winteri, description (*), xv. 345. Delphinium nudicaule, seedling-structure (*),

xvii. 54.

— Requienii, seedling-structure (*), xvii. 53.

— tricorne, embryology (*), xix. 454. Dematieae, coprophilous, xvi. 85.

Descent of bulbs into the soil, xx. 430. Desmidiaceae, reproduction and structure

(*), xii. 51.

Desmoncus minor, seedling-structure, xvii. 48. De Vries. — On Biastrepsis in its Relation to Cultivation, xiii. 395.

Dicksonia adiantoides, structure (*), xvii. 698, 727.

— antarctica, seedling-structure, xix. 399.

— apiifolia, structure (*), xvii. 692, 698.

— Barometz, structure (*), xvii. 697.

— davallioides, structure (*), xvii. 727.

— punctiloba, structure (*), xvii. 692.

— rubiginosa, structure (*), xvii. 700.

Index to Vo/s. XI-XX.

Dicotyledons and Monocotyledons, compar- ative antiquity of, xvii. 68 ; origin, xix. 457.

— embryology of some anomalous (*), xix. 447 ; infranodal organs in (*), xv. 135; nature of vascular system of stem of cer- tain, xvi. 599.

Dictyostele, definition, xvi. 523.

Dictyotaceae, gametophyte generation (*), xviii. 183; antheridium development (*), xviii. 187 ; antherozoids (*), xi. 183; cy- tology (*), xviii. 183, 545 ; fertilization (*), xviii. 19 1 ; oogonium development (*), xviii. 184 ; parthenogenesis (*), xviii. 196 ; segmentation (*), xviii. 194; sexual cells, periodicity (*), xix. 531.

— tetrasporangium : — alternation of gen- erations, xviii. 155; nucleolus, xviii. 156; stalk - cell - division (*), xviii. 142; tetraspore, karyokinesis in germinating (*), xviii. 153; tetraspore mother-cell, reducing-division (*), xviii. 145; tetra- spore mother-cell, second mitosis (*), xviii. 152.

Dictyotadichotoma, cell-plate formation (*), xiv. 179; chromosomes (*), xiv. 185; cytoplasm (*), xiv. 166 ; karyokinesis (*), xiv. 169 ; nuclear and cell-division (*), xiv. 163 ; nucleus, xiv. 168 ; reproduction, xii. 559 ; sexual cells, periodicity (*), xix. 531.

— is the periodicity in an hereditary char- acter? xix. 546.

Dieffenbachia Seguine, flower development (*), xiv. 4 ; male flowers (*), xiv. 5 ; ovule (*), xiv. 6.

Diffusion of gases and liquids in relation to carbon-assimilation and translocation, static, xiv. 537.

Digestion by leaves, xix. 157 ; Asparagus officinalis, xix. 160; Cucurbita Pepo var. ovifera, xix. 160; Ficus Carica, xix. 159; Phytolacca decandra, xix. 159 ; Rheum officinale and undulatum, xix. 158.

— of endosperm of Phoenix dactylifera, in- capacity for self-, xx. 61.

Dimorphism of Cutleria, seasonal (*), xii. 92.

Dioon edule, structure of sporophyll (*), xii. 221.

Dioscorea prehensilis, spinous roots ; mor- phology (*), xi. 327 ; structure (*), xvii. 413.

— sativa, origin, development, and morpho- logical nature of aerial tubers (*), xv. 491.

Dipcadiserotinum, seedling-structure, xvii. 12.

Diplodia cacaoicola a parasitic fungus on Sugar-cane and Cacao in the West Indies (*), xv. 683 ; systematic position, xv. 698.

Dipsaceae, insects and flowers, xvii. 319.

Dischidia rafflesiana, evolution of pitchers (*), xvi. 365.

— Shelfordii, n. sp., description, xvii. 617.

Dispersal of Mangrove seedlings (*), xvii.

267 ; of seeds by wind, x'x. 35 t.

Dissemination of Arceuthobium occidentale

I I

(*), xix. 100; of spores of Pythium ulti- mum, xv. 285.

Dissociation theory and chemotaxis, xiv. 562. Distribution of spores of Uredineae, xix. 11. Dixon, H. H. — Gelatin as a Fixative, xii. 117.

— Resistance of Seeds to High Tempera- tures, xvi. 590.

— The Possible Function of the Nucleolus in Heredity, xiii. 269.

— The Tensile Strength of Cell-walls, xi.

585.

— The Structure of Codium (one -wood- cut), xi. 588.

Doodia aspera, seedling-structure (*), xix. 366.

Dorsiventrality of the Podostemaceae with reference to current views on Evolution,

xvi. 593.

Doryanthes excelsa, seedling-structure, xvii. 42.

— Palmeri, seedling-structure, xvii. 42. Dracaena Draco, seedling-structure, xvii.

36.

Droppers, morphology and structure of Erythronium (*), xx. 436; of Tulip (*), xx. 431.

Drosera, changes in the gland-cells produced by various food-materials, xii. 560.

E.

Echinocactus, morphology of embryo and seedling (*), xii. 454.

Echinocereus, morphology of embryo and seedling (*), xii. 450.

Echinopsis, morphology of embryo and seedling (*), xii. 451.

Elaphomyces and Cordyceps, connexion between, xv. 525.

— variegatus, mycorhiza of (*), xv. 526. Electrical method for estimation of seed-

vitality, xv. 427.

Elettaria cardamomum, seedling structure,

xvii. 50.

Ellis, D. — The Life-history of Bacillus hirtus (Plate XVI), xx. 233.

Ellis, W. G. P. — A Method of obtaining Material for illustrating Smut in Barley, xii. 566.

— Fungi for Class-demonstration, xi. 333. Elvella , description, xi. 253, 286.

— clavata , description (*), xi. 255.

— cucullata, description (*), xi. 276.

— lubr'tca , description (*), xi. 288.

Embryo of Anthurium violaceum var. leuco-

carpum (*), xix. 334 ;

— of Cactaceae, colour-factors, xii. 434 ; form-factors (*), xii. 438 ; morphology, comparative (*), xii. 423 ; size-factors (*) xii. 436.

— of Cryptomeria japonica (*), xviii. 417; of Nephthytis liberica,xix. 343; of Ophio- glossum pendulum (*), xvi. 31 ; of Pepe-

12

Annals of Botany.

romia pellucida, xv. 1 1 1 ; of Sequoia sem- pervirens (*), xviii. 20 ; of Zea Mais (*), xix. 1 1 5.

Embryo and seedling of Anhalonium (*), xii. 462; of Astrophytum (*),xii. 457; of Cepha- locereus (*), xii. 450; of Cereus (*), xii. 443 ; of Echinocactus (*), xii. 454 ; of Echinocereus (*), xii. 450; of Echinopsis (*), xii. 451 ; of Epiphyllum, xii. 448 ; of Leuchtenbergia (*), xii. 459 ; of Mamil- laria (*), xii. 460 ; of Melocactus, xii. 459 ; of Opuntia (*), xii. 439 ; of Pelecy- phora, xii. 464 ; of Pereskia (*), xii. 438 ; of Pfeiffera, xii. 453 ; of Phyllocactus (*), xii. 446 ; of Pilocereus (*), xii. 449 ; of Rhipsalis (*), xii. 452.

Embryology of Actea alba (*), xix. 450 ; of Aquilegia canadensis (*), xix. 455 ; of Ara- ceae (*), xiv. 1 ; of Delphinium tricorne (*), xix. 454 ; of Dicotyledons, anomalous (*), xix. 447 ; of Lilaea subulata (*), xii. 1 ; of Sanguinaria canadensis (*), xix. 452 ; of Stylophorum diphyllum (*), xix. 454 ; of Syndesmon thalictroides, xix. 456; of Triglochin maritimum (*),xiv. 100.

Embryo-sac of Aglaonema (*), xiv. 8 ; of Anthurium (*), xiv. 12 ; of Anthurium violaceum var. leucocarpum (*), xix. 331 ; of Araceae(*), xiv. 1 ; of Dieffenbachia Se- guine (*), xiv. 4 ; of Lilaea subulata (*), xii. 14; of Lysichiton (*), xiv. 13; of Nephthytis liberica (*), xix. 339 ; of Peperomia pellucida (*), xiii. 626 ; xv. 103 ; of Triglochin maritimum (*), xiv. 99.

— homologies of, xiv. 696 ; xv. 114.

Emulsin, occurrence in Polyporus squamo-

sus, xx. 532.

Encephalartos, carpophyll of (*), xv. 548.

— villosus, sporophyll-structure (*), xii. 223.

Endodermis in roots of Ruscus, an irregular

(*), xiv. 157.

— morphological value, xvi. 393.

Endomyces coprophilus, n. sp ., description

(*), xv. 324.

— decipiens and Saccharomyces anomalus, relationship between, xiv. 237.

Endophytic adaptation shown by Ery- siphe graminis, under cultural conditions, xix. 444.

— member of the Erysipnaceae, Oidiopsis taurica (*), xx. 187.

Endosperm of Aglaonema (*), xiv. 10; of Anthurium violaceum var. leucocarpum (*), xix. 333; of Lilaea subulata (*), xii. 24; of Lysichiton (*), xiv. 17; of Neph- thytis liberica (*), xix. 343 ; of Pepero- mia pellucida (*), xv. 108 ; of Triglochin maritimum (*), xiv. 102.

— of Phoenix dactylifera, incapacity of for self-digestion, xx. 61.

Engler, A. — Plants of the Northern Tem- perate Zone in their Transition to the High Mountains of Tropical Africa, xviii. 523.

Environment, relation of Cutleria to physi- cal, xii. 96.

Enzyme and oxidase, xvii. 257.

— cellulose, xiii. 49 ; delignifying (*), xv. 125; proteolytic, xi. 563; xii. 545; xv. 563 ; xvii. 237, 597.

— of Nepenthes, xi. 563 ; xii. 545 ; xv. 563 ; of Polyporus squamosus, xx. 49 ; of Yeast, xi. 555 ; xii. 49 1.

Enzyme - secreting cells in seedlings of Phoenix dactylifera (*), xviii. 267. Epidermoidal layer of Calamite roots (* f), xvii. 792 ; xviih 645.

Epiphyllum, morphology of embryo and seedling, xii. 448.

Equisetaceae, imperfect sporangia, xv. 255. Equisetum, infranodal organs (*), xv. 136 ;

stele, nature of, xv. 774.

Eranthis hiemalis, seedling-structure (*), xvii. 5, 56.

Eremurus spectabilis, seedling-structure, xvii. 27.

— turkestanicus, seedling-structure, xvii. 27. Eriksson, J. — On the Vegetative Life of

some Uredineae, xix. 55.

Errera, L. — Osmotic Optimum and Mea- surements, xii. 568.

— Structure of the Yeast Cell, xii. 567. Erysinhaceae, cultural experiments with

biologic forms of, xviii. 320 ; xix. 125.

— Oidiopsis taurica, an endophytic member of (*), xx. 187.

Ery siphe Aster is ct, E. taurica var. Duriaei and E. taurica var. Tygophylli , an endophytic member of the Erysiphaceae (*), xx. 187; description (*•), xx. 195 ; distribution, host- plants and synonymy, xx. 194, 198.

— graminis, endophytic adaptation under cultural conditions, xix. 444.

— lanuginosa and E. lichenoides , description, xx. 199 ; distribution and host-plants, xx. 199 ; synonymy, xx. 198.

Erythronium droppers, morphology and structure (*), xx. 436.

— Hartwegi, seedling- structure (*), xvii. 25. Erythrophyll, protection afforded by, xi.

460, 585.

Escombe, F., and Brown, H. T. — Static Diffusion of Gases and Liquids in Relation to the Assimilation of Carbon and Trans- location in Plants, xiv. 537.

Eucomis nana, seedling-structure (*), xvii. 18. Eurotium insigne, description (*), xv. 331.

— microsporum, n. sp ., description (*), xv. 3 3 3.

— stercorarium, description (*), xvi. 67. Eusporangiatae, past history of (+), xx. 222. Eustele, definition, xvi. 522.

Euterpe edulis, seedling-structure, xvii. 50. Evolution, dorsiventrality of Podostemaceae with reference to current views on, xvi. 593-

— of green Algae, principles of, xi. 97 ; xiv. 647.

Index to Vo Is. XI -XX.

13

Ewart, A. J. — Bacteria with Assimilatory Pigments found in the Tropics, xi. 486.

- — Root-pressure in Trees, xviii. 181.

— The Action of Chloroform on C02-as- similation, xii. 415.

— The Action of Cold and of Sunlight upon Aquatic Plants, xii. 363.

■ — The Effects of Tropical Insolation, xi.

439, 585-

— The Influence of Correlation upon the size of Leaves (two text-figures), xx. 79.

— The Resistance to Flow in Wood Vessels (three text-figures), xix. 442.

— and Mason - Jones, A. J. — The Formation of Red Wood in Conifers (Plate XV), xx. 201.

Excretion of water from leaves of Lathraea squamaria (*), xi. 386 ; of Odontites rubra, xi. 392 ; of Pedicularis palustris, xi. 387; of Rhinanthus Crista-galli, xi. 390; of Scrophulariaceae (*), xi. 386.

Extra-floral nectaries of Hevea brasiliensis (*), xviii. 217.

F.

Factors, optima and limiting, xix. 281.

Farmer, J. B. — Observations on the Effect of Desiccation of Albumin upon its Coagu- lability, xiv. 307.

— On the structure of a Hybrid Fern (Plates XXIII and XXIV), xi. 533.

— The Quadripolar Spindle in the Spore- mother-cell of Pellia epiphylla, xv. 431.

— and Freeman, W. G. — On the Struc- ture and Affinities of Helminthostachys zeylanica (Plates XXI-XXIII), xiii. 421.

— and Hill, T. G. — On the Arrangement and Structure of the Vascular Strands in Angiopteris, and some other Marattiaceae (Plates XVI-XVIII, and one text-figure), xvi. 371.

Fat-destroying fungus (*), xiii. 363.

Fegatella conica, air chambers (*), xviii. 89 ; antheridium (*), xviii. 99 ; antherozoids, explosive discharge (*), xvii. 270 ; apical branching (*), xviii. 89 ; apical growing- point (*), xviii. 88 ; archegonium ('*), xviii. 105; asexual propagation, xviii. 97; capsule wall, structure and dehiscence (*), xviii. 112; elaters (*), xviii. no; female receptacle (*), xviii. 101 ; germination of spores (*), xviii. 114 ; male receptacle (*), xviii. 98 ; morphology (*), xviii. 87 ; mu- cilage sacs (*), xviii. 92 ; mycorhiza (*), xviii. 95 ; rhizoids (*), xviii. 94 ; sexual organs (*), xviii. 98 ; sporogonium (*), xviii. 108; ventral scales (*), xviii. 93 ; ventral tissue (*), xviii. 91.

Ferguson, M. C. — The Development of the Egg and Fertilization in Pinus Strobus (Plates XXIII-XXV), xv. 435.

— The Development of the Pollen-tube and the Division of the Generative Nu-

cleus in certain species of Pinus (Plates XII-XJV), xv. 193.

Fermentation induced by Saccharomyces anomalus, xiv. 229.

Fern prothalli, development of sporangia on, xi. 157.

Ferns, apogamy, xii. 251 ; past history of (* t), xx. 215 ; spore-formation in Lepto- sporangiate (*), xviii. 445.

Fern-stele, a new type of (*), xvi. 157. Fertilization in Achlya americana var. cam- brica (*), xiii. 159 ; Achlya de Baryana (*), xviii. 552 ; Achlya polyandra (*), xviii. 549 ; Angiosperms, xiv. 689, 702 ; Anthurium violaceum var. leucocarpum (*), xix. 332 ; Caltha palustris (*), xiv. 318, 527 ; Con- jugatae (*), xii. 29 ; Cryptomeria japonica (*), xviii. 417 ; Dictyotaceae (*), xviii. 19 1 ; Monascus (*), xvii. 173 ; Nemalion multifidum (*), xviii. 617; Nephthytis liberica (*), xix. 342 ; Onoclea (*), xii. 261 ; Peperomia pellucida (*), xv. 108 ; Peronospora parasitica (*), xiv. 263 ; Picea excelsa (*), xvii. 362 ; Pinus Strobus (*),

xv. 447 ; Pythium de Baryanum (*), xv. 659 ; Pythium ultimum (*), xv. 280 ; Ric- cia glauca (*), xx. 275; Saprolegnieae (*), xiii. 447, xviii. 541; Sequoia sempervirens (*), xviii. 17 ; Sphaerotheca (*), xix. 567 ; Tsuga canadensis (*), xiv. 583 ; Uredineae (*), xviii. 349, 352.

— nature of the triple nuclear fusion in An- giosperms, xiv. 702.

Fever reaction after injury, xi. 29.

Fibres of Schizaeaceae (*), xv. 400. Fibrin-digesting protease, nature of, xix. 172. Fibrin, digestion of, xvii. 252.

Ficus Carica, digestion by leaves, xix. 159 ;

proteolytic action of cradein of, xvi. 7. Filicineae, imperfect sporangia, xv. 257 ; morphology of sporangial integuments,

xvi. 598.

Fissidens aequalis, n. sp., description (*), xiii. 120.

— Balansaeanus var. limosus, description, xiii. 126.

— flavicans, description, xiii. 125.

— Holstii, description, xiii. 122.

— macrophyllus, description, xiii. 126.

— mollis, description, xiii. 126.

— multifloro, description, xiii. 123.

— ■ Nicholsonii, n. sp ., description (*),xiii. 123.

— nigro-viridis,»..r/!>., description (*), xiii. 12 3.

— nitens, description (*), xiii. 12 1.

var. neglectus, n. var., description

(*), xiii. 122.

— radicans , description, xiii. 125.

— Ravenelii, description, xiii. 124.

— rufescenti, description, xiii. 121.

— subscriptus, description, xiii. 126.

— classification, xiii. 1 1 9 ; geographical dis- tribution, xiii. 120; morphology (*), xiii. 103 ; structure (*), xiii. 106.

Annals of Botany.

Fixative, gelatine as a, xii. 117.

Flagellata and primitive Algae (*), xiv. 647, 666 ; xv. 192.

Floating-apparatus in leaves of Pistia stra- tiotes, xiii. 466.

Flora, geological history of British, xii. 243.

— of Britain, Jurassic (+), xiii. 610.

Florideae, form of protoplasmic body in, xii.

569.

Flower and embryo of Lilaea subulata, de- velopment (*), xii. r.

— of Cephalotaxus, morphology (*), xv. 637.

— of Coniferae, structure (*), xiii. 527, xiv.39.

— of Gnetaceae, vascular structure, xv. 766.

Flowers and insects, xvii. 313, 539.

Flow in wood-vessels, resistance to (*), xix. 442.

Foliar organs of Monophyllaea, xx. 213.

— periodicity in Ceylon, xvi. 594.

Ford, S. O. — The Anatomy of Ceratopteris thalictroides (Plate VI and eight text- figures), xvi. 95.

— The Anatomy of Psilotum triquetrum (Plate XXXIX), xviii. 589.

Form, influence of direction of light upon (*), xx. 456.

Fossombronia longiseta, antheridium (*), xx. 92 ; archegonium (*), xx. 99 ; embryo (*), xx. 101 ; external characters (*), xx. 83 ; germination of spores (*), xx. 88 ; habitat, xx.83; spermatogenesis (*),xx. 94.

Fraser, H. C. I., and Blackman, V. H. — Fertilization in Sphaerotheca (one text- figure), xix. 567.

Further Studies on the Sexuality of

the Uredineae (Plates III and IV), xx. 35-

Freeman, E. M. — Experiments on the Brown Rust of Bromes (Puccinia dis- persa), xvi. 487.

Freeman, W. G., and Farmer, J. B. — On the Structure and Affinities of Helmintho- stachys zeylanica (Plates XXI-XXIII), xii. 421.

Freeman, Mrs. W. G., and Hill, T. G. — The Root-structure of Dioscorea pre- hensilis (Plate XIX and one text-figure), xvii. 413.

Freesia, sp ., seedling-structure, xvii. 44.

F ritillaria alpina, seedling-structure, xvii. 25.

— imperialis, seedling-structure (*), xvii. 23.

Fritsch, F. E. — Algological Notes, I. Ob- servations on Species of Alphanochaete (one text-figure), xvi. 403.

— Id. II. The Germination of the Zoo- spores in Oedogonium (one text-figure), xvi. 412.

— Id. III. Preliminary Report on the Phytoplankton of the Thames, xvi. 576.

— Id. IV. Remarks on the periodical De- velopment of the Algae in the Artificial Waters at Kew, xvii. 274.

— Id. V. Some Points in the Structure of

a young Oedogonium (one text-figure), xviii. 648.

Fritsch, F. E.— Id. VI. The Plankton of some English Rivers, xix. 163.

— F urther observations on the Phytoplank- ton of the River Thames, xvii. 631.

— The Affinities and Anatomical characters of Plagiopteron fragrans, xvi. 177.

— The Structure and Development of the Young Plant in Oedogonium (three text- figures), xvi. 467.

— Two Fungi, parasitic on Species of Toly- pothrix ( Resticularia nodosa and R.Boodlei, n. sp.) (Plate XXIX), xvii. 649.

F ruit-dispersal in Adenostemma viscosum

(*), xx- 3ii-

Fucus hybrids, new, xiii. 187.

F unaria, effect of centrifugal force on cells of leaf (*), xiii. 343.

Funaria hygrometrica, monoecismof (*), xx. 293 ; stomata, mechanism, xvi. 336.

Fungal symbionts, identity of, xiii. 3.

P'ungi, coprophilous (*), xv. 313.

— for class demonstration, xi. 333; parasi- tism in, xviii. 319 ; xix. 1 ; sexuakty of, xiii. 575.

— parasitic on Tolypothrix (*), xvii. 649.

Fungus, a fat-destroying (*), xiii. 363.

— gelatinosus flwvus , description (*), xi. 288.

Funkia ovata, raphides (*), xii. 148.

G.

Gager, C. S. — The Development of the Pollinium and Sperm-cells in Asclepias Cornuti (Plate VII), xvi. 123.

Galanthus, absciss-layer in leaf, xii. 151.

Galtoniacandicans, seedling-structure, xvii. 1 2.

Gametophyte generation of Botrychium vir- ginianum, xi. 481; of Cryptomeria Ja- ponica (*), xviii. 417 ; of Dictyotaceae (*), xviii. 183 ; of Sequoia sempervirens (*), xvi”- 5, 9-

Ganong, W. F. — An undescribed Thermo- metric Movement of the Branches in Shrubs and Trees (six text- figures), xviii. 631.

— Contributions to a knowledge of the Cactaceae, II. The Comparative Mor- phology of the Embryo and Seedling (Plate XXVI), xii. 423.

Gases and liquids in relation to carbon- assimilation and translocation, static dif- fusion of, xiv. 537.

— effect of, on nuclear division (*), xix. 521.

Gelatine as a fixative, xii. 1 1 7.

Geoglosseae, affinities (*), xi. 234 ; diagnosis,

xi. 238 ; distribution, xi. 235 ; key to genera, xi. 239 ; key to species, xi. 240 ; morphology and reproduction (*), xi. 225.

Geoglossum, description (*), xi. 240, 264.

— album , description, xi. 285.

— amerkanum , description, xi. 242.

— atropurpureum , description (*), xi. 2 66.

Index to Vo Is. XI -XX. 15

Geoglossum australe , description (*), xi. 247.

— Barlae, description, xi. 251.

— carneum , description, xi. 270.

1 — cucullatum , description (*), xi. 276.

— di forme, description, xi. 248.

— Farlowi, description, xi. 243.

— - — f. leotioides, description (*), xi. 244. f. velutipes, description, xi. 243.

— flavum, description (*), xi. 256, 275.

— glabrum, description (*), xi. 246.

f. difforme, description, xi. 248.

>■ var. lignicolum, description (*), xi. 250.

— glutinosum, description (*), xi. 245, 250.

— ■ — f. minor , description (*), xi. 245.

— Heuflerianum, description, xi. 253.

— hirsutum description (*), xi. 241.

f. americanum, description, xi. 242.

f. Walteri, description (*), xi. 243.

•var . americanum , description, xi. 242.

-var. leotioides , description (*), xi.

244.

— Hookeri , description (*), xi. 267.

— lignicolum , description (*), xi. 250.

— luteum , description (*), xi. 275.

— microsporium , description (*), xi. 282. var. tremellosum , description, xi. 283.

— Miilleri, description (*), xi. 245.

— multiforme , description (*), xi. 281.

— nigritum , description, xi. 249.

— olivaceum , description, xi. 270.

var. purpureum, description, xi. 270.

— ophioglossoides , description (*), xi. 247. var. sphagnophilum , description (*),

xi. 247.

— Peckianum, description (*), xi. 250.

f. Barlae, description, xi. 251.

f. umbratile, description, xi. 251.

— pistillaris, description (*), xi. 275.

— pumilum, description (*), xi. 252.

— purpurascens, description (*), xi. 266.

- — rufum , description (*), xi. 275.

• — simile , description (*), xi. 247.

— sphagnophilum , description (*), xi. 247.

— tremellosum , description, xi. 283.

— umbratile , description, xi. 251.

— velutipes , description, xi. 244.

— viride, description (*), xi. 269.

— viscosulum, description (*), xi. 252.

— viscosum, description (*), xi. 245.

— vitellinum, description (*), xi. 273.

— Walteri , description (*), xi. 243. Geological history of British Flora, xii. 243. Geonomaoxycarpa,seedling-structure,xvii.49. Geophilous habit of Peperomias (*), xx. 416. Geotropic response at various angles of

inclination, xix. 311.

intensity of response at equal angles

above and below the horizontal, relative, xix. 319.

— — maximum response of primary roots and shoots, angle for, xix. 311.

— stimulation, position of maximum, xix. 569.

Geotropism and localization of sensitive region (*), xiii. 567.

— the gravitation stimulus in relation to position, xiii. 620.

Germ cells, distribution of parental charac- ters to, xix. 246.

Germinated seeds, proteases of, xx. 115. Germinating seeds, proteolytic action, xvi. 1 o. Germination, influence of light upon (*), xx. 453.

— of Arceuthobium occidentale (*), xix. 104 ; of Bromes, xvi. 257 ; of Cactaceae (*), xii. 429 ; of conidia of Pythium ultimum (*), xv. 276; of melon, pre- cocious (*), xvi. 149 ; of oospores of Achlya americana var. cambrica (*), xiii. 143, 162 ; of oospores of Gutleria (*), xii. 85 ; of oospores of Pythium ultimum, xv. 282; of pollinium cells of Asclepias Gor- nuti (*), xvi. 138 ; of seeds of Bertholletia excelsa (*), xv. 99 ; of spores of Bacillus hirtus (*), xx. 236; of spores of copro- philous Fungi, xv. 314 ; of spores of Fega- tella conica (*), xviii. 114; of spores of Fossombronia longiseta (*), xx. 88 ; of spores of Grinnellia americana (*), xi. 10; of spores of Ophioglossum, xx. 321 ; of spores of Peziza aurantia, xi. 339; of spores of Saccharomyces anomalus (*), xiv. 225 ; of uredospores, xix. 12; of uredo- spores of Puccinia dispersa, xvi. 261 ; of zoospores of Aglaozonia (*), xii. 87 ; of zoospores of Oedogonium (*), xvi. 412.

Germinative power of seeds, influence of the temperature of liquid hydrogen on,

xiii. 599.

Giesenhagen, K., and Gwynne-Vaughan, D. T. — Loxsoma Cunninghamii — A Cor- rection, xv. 433.

Ginger Beer plant, xi. 341.

Ginkgoaceae, fossil (* t), xiv. 135.

Ginkgo biloba, cotyledons (*), xiv. 115, xvii. 789; diagnosis, xiv. 1 14 ; female flowers (*), xiv. 122 ; foliage leaves (*),

xiv. 117 ; leaf-traces (*), xiv. 130; male flowers (*), xiv. T29; root-structure (*),

xiv. 134; seedling-structure (*), xiv. 13 1 ; scale-leaves (*), xiv. 1 16 ; spermatozoids, xi. 344; stem-structure (*), xiv. 131 ; structure, &c. (*), xiv. 109.

Gland-cells of Drosera, changes produced in by various food materials, xii. 560. Glasgow University, opening of new botanical department, xv. 551. Gleicheniaceae, anatomy of the (*), xv. 703.

— stem-structure, xii. 624.

Gleichenia, habit, xv. 704 ; node (*), xv. 720; petiole, structure (*), xv. 713; rachis and pinnules, structure, xv. 726 ; rhizome, structure (*), xv. 705 ; root- structure (*), xv. 731 ; seedling-structure,

xv. 733.

— pectinata, structure (*), xv. 728.

1 6 A nnals

Gliocladium macropodinum , description (*),

xv. 331.

Glycogen vacuoles in Saccharomyces (*),

xii. 527.

Gnetaceae, morphology of the sporangial integuments, xvi. 597 ; vascular structure of female ‘ flowers,5 xv. 7 66.

Gonatonema, spore-formation (*), xii. 39.

Goody era repens , morphology, xiii. 20 ; my- corhiza, xiii. 20 ; structure of vegetative organs, xiii. 20.

Gowan, J., and Seward, A. C. — The Maidenhair Tree (Ginkgo biloba) (Plates VIII-X), xiv. 109.

Grafting experiments, xvi. 174.

Gramineae, mechanism of stomata (*), xvi. 343.

Graphium Comatrichoides, n. sp., descrip- tion (*), xvi. 88.

— stercorarium, description (*), xvi. 88.

Graviperception (*), xiii. 567.

Gravitation stimulus in relation to position,

xiii. 620.

Green, J. Reynolds. — The Alcohol-pro- ducing Enzyme in Yeast, xii. 491.

— The supposed Alcoholic Enzyme in Yeast, xi. 555.

Gregory, R. P. — Spore-Formation in Lep- tosporangiate Ferns (Plate XXXI and one text-figure), xviii. 445.

Griffithsia corallina, cystocarp development (*),xi. 357.

— setacea, cystocarp development, xi. 357.

Grinnellia americana, antheridia, develop- ment (*), xi. 12 ; cystocarp development (*), xi. 14; development (*), xi. 1 ; ger- mination of spores (*), xi. 10; habitat, xi. 5 ; morphology (*), xi. 2 ; physiology, xi. 7 ; structure (*), xi. 1.

Groom, P. — Lathraea Squamaria, xii. 118.

— On the Leaves of Lathraea Squamaria and of some 'allied Scrophulariaceae (Woodcut 7), xi. 385.

Growth, correlation of, under influence of injuries, xi. 509, xii. 117 ; of mycelium of Pythium ultimum, xv. 277 ; ot' Pythium ultimum, relation of to temperature, xv. 286; of roots and shoots, correlation in, xv. 615.

— influence of light upon early (*), xx. 453-

Gwtynne-Vaughan, D. T. — Observations on the Anatomy of Solenostelic F erns. I. Loxsoma (Plate III), xv. 71.

— Id. 1 1 (Plates XX XI II-X XXV), xvii.689.

— On an unexplained Point in the Anatomy of Helminthostachys zeylanica (one text- figure), xvi. 170.

— On Polystely in the Genus Primula (Plate XIV), xi. 307.

— On the Anatomy of Archangiopteris Henryi and other Marattiaceae (Plate X), xix. 259.

f Botany.

Gwynne- Vaughan, D. T.— Remarks upon the Nature of the Stele of Equisetum,

xv. 774.

— Some Observations upon the Vascular Anatomy of the Cyatheaceae, xv. 776.

— and Giesenhagen, K.— Loxsoma Cun- ninghamii — A Correction, xv. 433.

Gymnoascaceae, coprophilous (*), xv. 324,

xvi. 61 ; culture, xvii. 575 ; observations on (*), xvii. 571 ; preparation, xvii. 575 ; reproduction, xvii. 586.

Gymnoascus Candidas , description (*), xvi. 62.

— candidus, life-history (*), xvii. 583.

— Reesii, description, xvi. 63 ; life-history (*), xvii. 576.

— setosus, description (*), xvi. 63 ; life- history, xvii. 581.

— uncinatus , description (*), xv. 325. Gymnodochium fimicolum, n. sp ., description

(*), xvi. 89.

— n. gen., description, xvi. 89. Gymnogramme calamelanos, structure (*),

xvii. 689.

Gymnospermae, seedling-structure, xx. 471.

— spermatozoids, xi. 344 ; sporangial integuments, morphology, xvi. 596 ; stomata, mechanism (*), xvi. 345.

Gymnosperms and Pteridophyta, anatomy and development of stem, xv. 779.

— ovules of the older (* +), xvii. 451. Gymnosporangium clavariaeforme, aecidium

development, xviii. 341 ; mycelium (*), xviii. 336 ; promycelium (*), xviii. 329 ; spermogonia (*), xviii. 336; teleutospore (*), xviii. 329, 344.

Gyrostachys cernua, mycorhiza, xiii. 27 ; root-structure, xiii. 27.

H.

Hairs of Schizaeaceae, xv. 403.

Haliseris, periodicity in, xix. 552.

Hall, A. D. — Simple Apparatus for the Measurement of Transpiration from a Shoot (one text-figure), xv. 558.

Hanna, H. — The Plurilocular Sporangia of Petrospongium Berkeleyi (one figure), xiii. 461.

Haplostele, definition, xvi. 523.

Haplotrichum glomerulosum , description (*), xvi. 80.

Harper, R. A.— Cell-Division in Sporangia and Asci (Plates XXIV-XXVI), xiii. 467.

— Sexual Reproduction in Pyronema con- fluens and the Morphology of the Ascocarp (Plates XIX-XX1), xiv. 321.

Hartog, M. — Alternation of Generations, xii. 593. ^

— The Alleged Fertilization in the Sapro- legnieae, xiii. 447.

Harveyella mirabilis, development, morpho- logy, and structure (*), xiii. 83. Harvey-Gibson, R. J. — Contribution to- wards a Knowledge of the Anatomy of

Index to Vo/s. XI-XX.

17

the Genus Selaginella. Part III. The Leaf (Plate IX), xi. 123.

Harvey-Gibson, R. J. — Id. Part IV. The Root (Plates XX and XXI), xvi. 449. Haustorium of Loranthus aphyllus, histology (*), xv. 753 ; morphology (*), xv. 749. Heat, effect of, on nuclear division, xix.

529.

— evolution of, by wounded plants, xi. 29. Hebeloma Jlavum , description, xviii. 497.

— subochraceum, description, xviii. 475. Helianthus annuus, lignification of phloem,

xvi. 180 ; xx. 319.

— decapetalus, lignification of phloem, xx.

319.

— laetifolius, lignification of phloem, xx. 319.

— tuberosus, proteolytic enzymes, xvii. 614. Helicostylum piriforme, description (*), xvi.

78.

Heliotropic stimulation, position of maxi- mum (*), xvii. 105.

Helleborus, mechanism of stomata, xvi. 340.

Helminthostachys zeylanica, affinities, xiii. 443 ; antheridia (*), xvi. 38 ; archegonia (*), xvi. 39 ; foliar bundles (*), xiii. 438 ; histology (*), xiii. 428 ; morphology (*), xiii. 421 ; nodal canals (*), xvi. 170; pro- thallus (*),xvi. 23; prothallus, morphology of (*), xvi. 32 ; prothallus, mycorhiza of (*), xvi. 36 ; prothallus-structure (*), xvi. 34 ; root-structure (*), xiii. 440 ; spore- development (*), xx. 177; sporophyte, anatomy and morphology of young (*), xvi. 41 ; vascular skeleton (*), xiii. 426. Helotium, description, xi. 259, 285.

— aciculare , systematic position, xi. 286.

— atrovirens , description (*), xi. 287.

— circinans, description (*), xi. 261.

Helvetia , description, xi. 285.

— feritoria , description (*), xi. 255.

— Jlavo-virens , description (*), xi. 288.

— gelatinosa , description (*), xi. 288.

— laricina , description (*), xi. 272.

— lutea, description (*), xi. 288.

— platypoda , description, xi. 293.

— revoluta , description (*), xi. 261.

— spathularia , description (*), xi. 255.

— spathulata , description (*), xi. 255. Hemiglossum, description, xi. 296.

— Yunnanensis, description (*), xi. 296. Hemsley, W. B.— On the Julianiaceae, a

new Natural Order of Plants, xx. 467.

• — On the Genus Gorynocarpus, with De- scriptions of two new species (Plate XXXVI and two text - figures), xvii. 743.

— Id. Supplementary Note, xviii. 179.

— and Rose, J. N. — Diagnoses Specierum Generis Juliania, Americae tropicae, xvii. 443-

Hepaticae, conducting-strands of (*), xv. 4.

Heredity in connexion with Polypodium Schneideri, xi. 540.

— possible function of the nucleolus in, xiii. 269.

Heterokontae, phylogenetic relations (*), xiv. 671.

Heterophylly in Proserpinaca palustris (*), xviii. 579.

Hevea brasiliensis, extra-floral nectaries (*), xviii. 217; exudation of latex, xiv. 205 ; laticiferous system of seed (*), xiv. 208 ; seedling, xviii. 220.

Hibiscus vitifolius, intumescences of, xiii. 622.

Hill, A. W. — Notes on the Histology of the Sieve-tubes of certain Angiosperms, xvii. 265.

— The Histology of the Sieve-Tubes of Pinus (Plates XXXI-XXXIII), xv. 575.

— - The Morphology and Seedling-structure of the Geophilous Species of Peperomia, together with some Views on the Origin of Monocotyledons (Plates XXIX and XXX and three text-figures), xx. 395.

Hill, T. G. — On Secondary Thickening in Angiopteris evecta, xvi. 173.

— On the Anatomy of the Stem of Dalbergia paniculata, xv. 183.

— On the Presence of a Parichnos in Recent Plants, xviii. 654.

— Id. (Plates XIX and XX) (t), xx. 267.

— On the Roots of Bignonia (Plate XXII), xii. 323.

— On the Seedling-structure of certain Cen- trospermae, xx. 473.

— On the Seedling-structure of certain Piperales (Plate IX and three text-figures), xx. 161.

— On Variation in the Flowers of certain Primulaceae (one text-figure), xvi. 317.

— The Structure and Development of Triglochin maritimum (Plates VI and VII), xiv. 83.

— and de Fraine, E. — On the Seedling- structure of Gymnosperms, xx. 471.

— and Farmer, J. B.— On the Arrangement and Structure of the Vascular Strands in Angiopteris evecta, and some other Marat- tiaceae (Plates XVI-XV1II and one text- figure), xvi. 371.

— and Freeman, Mrs. W. G. — The Root- structure of Dioscorea prehensilis (Plate XIX and one text-figure), xvii. 413.

— and Scott, D. H. — The Structure of Isoetes Hystrix (Plates XXIII and XXIV and two text-figures), xiv. 413.

Hirase, S., and Iiceno, S. — Spermatozoids in Gymnosperms, xi. 344.

Holm, T. — Bartonia, an Anatomical Study (Plates XXXIII and XXXIV), xx. 441.

— Obolaria virginica : A Morphological and Anatomical Study (Plate XIX and one woodcut), xi. 369.

1 8 Annals of Botany.

Hooker, Sir J. D— A Sketch of the Life and Labours of Sir William Jackson Hooker (Portrait), xvi. ix.

— Biographical Memoir of George Bentham (Portrait), xii. ix.

Hooker, Sir W. J. — Biographical Sketch (Portrait), xvi. ix.

Hope, C. W.— The ‘Sadd’ of the Upper Nile : its Botany compared with that of similar Obstructions in Bengal and American Waters, xvi. 495.

— Id. Note on, xvii. 446.

Hordeum sativum, proteases, xix. 179.

— vulgare, proteolytic action in germinating seeds of, xvi. 10.

Hormospora fimetaria, description (*), xv. 347.

— ovina, description (*), xv. 346.

Host and parasite, relation between in Bromes and Puccinia dispersa, xvi. 233.

Houttuynia cordata, seedling-structure (*), xx. 1 7 1.

Howard, A. — On a Disease of Tradescantia (Plates IV and V), xiv. 27.

— On Diplodia cacaoicola ; a parasitic F un- guson Sugar-cane and Cacao in the West Indies (Plate XXXVII), xv. 683.

■ — On some Diseases of the Sugar-cane in the West Indies (Plate XVIII), xvii. 373.

— On Trichosphaeria Sacchari ; a Fungus causing a Disease of the Sugar-cane known as ‘ Rind Fungus,’ xiv. 617.

Huie, L. H. — Changes in the Gland-Cells of Drosera produced by various Food Materials, xii. 560.

Humaria salmonicolor, description, xvi. 66.

Humphrey, H. B. — The Development of Fossombronia longiseta (Plates V and VI and eight text-figures), xx. 83.

Hyacinthus orientalis, proteases of, xix. 182 ; reserve carbohydrates of bulb, xiv. 155 ; seedling-structure, xvii. 20.

— romanus, seedling-structure (*), xvii. 14.

Hyalodidymae, coprophilous, xvi. 75.

Hyalostilbeae, coprophilous, xvi. 86.

Hybrid Fern, structure of (*), xi. 533.

— of Kalanchoe (.*), xvii. 435.

Hybrids of Fucus, new, xiii. 187 ; of sus- ceptible and immune varieties, xix. 37.

Hydathodes of Lathraea Squamaria and of some allied Scrophulariaceae (*), xi. 385.

Hydrodictyon utriculatum, starch formation in (*), xv. 619.

Hydrogen, effect of, on nuclear division, xix. 525 ; on streaming of protoplasm, xix.

523-

Hydropterideae, past history of (+), xx. 227.

Hygromiira stipitata , description (*), xi. 290.

— tremula, description (*), xi. 288.

Hymenomyceteae, coprophilous, xvi. 61.

Hymenophyllaceae, anatomy (*), xiv. 455 ;

phylogeny, xiv. 481 ; stem-structure, xiii. 624.

Hymenophyllum, nodal region (*), xiv. 467 ; petiole (*), xiv. 4 66 ; root-structure (*),

xiv. 465 ; stem-structure (*), xiv. 456. Hyphae, movements of protoplasm in coeno-

cytic (*), xi. 491.

Hyphomyceteae, coprophilous, xvi. 79. Hypocopra macrospora, description (*), xv. 339.

— minima , description (*), xv. 335.

— stercoraria, description, xv. 343.

— j ter cor is, description (*), xv. 339. Hypocreaceae, coprophilous (*), xv. 351,

xvi. 75.

Hypolepis millifolia, structure (*), xvii. 693.

— repens, structure (*), xvii. 693.

— tenuifolia, structure (*), xvii. 693. Hysterostele, definition, xvi. 523.

I.

Idioplasmic activity, outward manifestation, xix. 227.

— structures, the visible, xix. 223.

Ikeno, S., and Hirase, S. — Spermatozoids

in Gymnosperms, xi. 344.

Immune and susceptible varieties and their hybrids, xix. 37.

Immunity and susceptibility, xix. 20. Indigofera, localization of indigo-producing substance (*), xix. 301.

Indigo-producing substance and chloroplasts, supposed relation between, xix. 308. Indigo-yielding plants, localization of indigo- producing substance in (*), xix. 297; Calanthe, xix. 307 ; Indigofera (*), xix. 301 ; Isatis tinctoria, xix. 305 ; Phajus grandifolius (*), xix. 306 ; Phajus macu- latus, xix. 307 ; Phajus Wallichii, xix. 307 ; Polygonum tinctorium, xix. 305 ; Strobi- lanthes flaccidifolius, xix. 307.

Infection by fungus parasites, xix. 28.

— experiments with Puccinia dispersa, xvi. 487.

— of Bromes with Puccinia dispersa, xvi. 273.

Infranodal organs in Calamites (+*), xv. 135 ; in Cicuta maculata (*), xv. 141 ; in Gornus stolonifera (*), xv. 142 ; in Dico- tyledons (*), xv. 135; in Equisetum (*),

xv. 136; in Polygonum amphibium (*), xv. 144 ; in Potentilla palustris (*), xv. 140.

Injuries, correlation of growth under in- fluence of, xi. 509, xii. 1 17.

Injury, appearance of a brilliant pigment in Jacobinia after, xix. 167.

Inocybe, description and key to species, xviii. 463.

— monograph of genus (*), xviii. 459.

— abjecta, description, xviii. 480.

— agglutinata , description, xviii. 478.

— albipes, description, xviii. 473.

— albodisca, description, xviii. 466.

— alienella , description, xviii. 489.

— asinina, description, xviii. 474.

Index to Vo Is. XI -XX.

19

Inocybe asterospora, description, xviii. 465.

— Bongardi, description, xviii. 489.

— Bresadolae, description, xviii. 465.

— brunnea, description, xviii. 486.

— Bucknalli, n. sp., description (*), xviii. 473-

— caesariata, description, xviii. 482.

— calamistrata, description, xviii. 493.

— calospora, description (*), xviii. 469.

— capucina, description, xviii. 499.

— carpta, description, xviii. 483.

— cervicolor, description, xviii. 479.

— cicatricata, description, xviii. 467.

— cincinnata, description, xviii. 489.

— Clarkii, description, xviii. 477.

— comatella, description, xviii. 487.

— commixta, description, xviii. 467.

— concinna, description, xviii. 480.

— conformata, description, xviii. 488,

— confusa, description, xviii. 480.

— connexifolia, description, xviii. 497.

— Gookei, description, xviii. 492.

— cortinata, description, xviii. 476.

— corydalina, description, xviii. 477.

var. roseola, description, xviii. 477.

— cucullata, description, xviii. 496.

— Curreyi , description, xviii. 495.

— curvipes, description, xviii. 467.

— decipiens, description, xviii. 467.

— deglubens, description, xviii. 479.

var. trivialis, description, xviii. 479.

— delecta, description, xviii. 500.

— descissa, description, xviii. 478.

— destricta, description, xviii. 480.

— dulcamara, description, xviii. 488.

— echinata, description, xviii. 493.

— echinocarpa , description (*), xviii. 470.

— eriocephala, description, xviii. 4 66.

— erythroxa, description, xviii. 494.

— eutheles, description, xviii. 476.

— eutheloides, description, xviii. 485.

— fasciata, description, xviii. 468.

— fastigiata, description, xviii. 495.

— fibrillosa, description, xviii. 491.

— fibrosa, description, xviii. 464.

— flava, description, xviii. 497.

— flavella, description, xviii. 482.

— flocculosa, description, xviii. 487.

— frumentacea , description, xviii. 486.

— fuegiana, description, xviii. 490.

■ — fulvella, description, xviii. 472.

— fuscodisca, description, xviii. 487.

— Gaillardi, description (*), xviii. 470.

— geophylla, description (*), xviii. 477. var. fulva, xviii. 478.

var. violacea, xviii. 478.

— Godeyi, description, xviii. 481.

— gomphodes, description, xviii. 499.

— grammata, description, xviii. 473.

- — grata, description, xviii. 498.

— griseoscabrosa, description, xviii. 484.

— haemacta, description, xviii. 486.

— hirsuta, description, xviii. 492.

Inocybe hirtella, description, xviii. 474.

— hiulca , description, xviii. 481.

— holophlebia, description, xviii. 490.

— hystrix, description, xviii. 483.

— ignobilis, description, xviii. 472.

— incarnata, description, xviii. 484.

— r inedita , description, xviii. 464.

— infelix, description, xviii. 479.

— infida, description, xviii. 467.

— jurana, description, xviii. 486.

— lacera, description, xviii. 483.

— lanuginosa, description, xviii. 468.

— leucocephala , description, xviii. 467.

— lucifuga, description, xviii. 481.

— maculata, description, xviii. 497.

— mammilaris, description, xviii. 498.

— margarispora, description, xviii. 473.

— maritima, description, xviii. 471.

— maritimoides, description, xviii. 469.

— Merletii, description, xviii. 497.

— mimica, n. sp., description, xviii. 492.

— murino-liliacina, description, xviii. 495.

— mutata, description, xviii. 496.

— mutica, description, xviii. 485.

— nigrodisca, description, xviii. 485.

— obscura, description, xviii. 482.

var. major, description, xviii. 483.

var. rufus, description, xviii. 483,

— pallidipes, description, xviii. 476.

— paludinella, description, xviii, 468.

— perbrevis, description, xviii, 490.

— perlata, description, xviii. 489.

— phaeocephala, description, xviii. 501,

— plumosa, description, xviii. 300.

— pollicaris, description, xviii. 499.

— praetermissa , description, xviii. 493,

— praetervisa, description, xviii. 466,

— proximella, description, xviii, 466,

— pusio, description, xviii. 488.

— putilla, description, xviii. 469.

— pyriodora, description, xviii. 475.

— radiata, description, xviii. 474.

— Raveneli, n. sp)., description, xviii, 485,

— reflexa, description, xviii. 498,

— relicina, description, xviii. 488.

— Renneyi, description, xviii. 472.

var. major, description, xviii. 472,

— repanda, description, xviii. 465, 481,

— rhodiola, description, xviii. 486,

— rhombospora, n. sp., description (*), xviii, 494.

— rigidipes , description (*), xviii. 469,

— rimosa, description, xviii, 475.

— ruhescens, description, xviii. 481.

— rufoalba, description, xviii. 471.

— sabuletorum , description, xviii, 468.

— Sambucina, description, xviii. 477,

— scabra, description, xviii. 474.

— schist a, description, xviii. 501,

— sernsata, description, xviii, 495,

— - sindonia, description, xviii. 476,

— squamigera, description, xviii. 498.

— squamosa, description, xviii, 484,

20

Annals of Botany .

Inocybe squarrosula, description, xviii. 499.

— stellatospoi-a, description, xviii. 469.

— strigiceps, description, xviii. 499.

— subdecurrens, description, xviii. 491.

— subexilis, description, xviii. 472.

— subful'va, description (*), xviii. 470.

— subgranulosa, description, xviii. 498.

— subochracea, description, xviii. 475.

— subrimosa , description, xviii. 465.

— subtomentosa, description, xviii. 495.

— tenebrosa, description, xviii. 497.

— tomentosa , description, xviii. 491, 501.

— trechispora, description, xviii. 468.

— Trinii, description, xviii. 471, 481.

— Trinii, description, xviii. 470.

— tuberosa, description, xviii. 496.

— umbonata = Agaricus (Stropharia) in- unctus, xviii. 500.

— umboninota, description, xviii. 471.

— umbrina, description, xviii. 471.

— unicolor, description, xviii. 492.

— vatricosa, description, xviii. 491.

— Yictoriae, description, xviii. 490.

— violacea, description, xviii. 494.

— 1 uolaceafusca = Cortinarius (Dermo.) vio- laceafuscus, xviii. 501.

— violaceifolia, description, xviii. 482.

— violacens, description, xviii. 497.

— viscosissima, description, xviii. 500.

— Whitei, description, xviii. 478.

Insects and flowers in Great Britain, xvii. 313, 539-

Insolation, effects of tropical, xi. 439, 585. Insular floras, plumed seeds and fruits in,

xix. 360; winged -fruit plants in, xix. 358.

Integument, double nature of the Cycadean (+), xix. 561.

Integuments, morphology of sporangial, xvi. 596.

Intumescences of Hibiscus vitifolius, xiii. 622.

Iridaceae, seedling-structure, xvii. 43.

Iris Boissieri, seedling-structure, xvii. 43.

— sibirica, seedling-structure, xvii. 43. Irritability in plants (*), xx. 449.

Isatis tinctoria, localization of indigo-pro- ducing substance, xix. 304.

Isoetes Hystrix, affinities, xiv. 444 ; leaf and leaf-trace structure (*), xiv. 431 ; parichnos, presence of in (*), xviii. 654 ;

xx. 268 ; root-structure (*), xiv. 437 ; stem-structure (*), xiv. 416.

— imperfect sporangia in, xv. 253.

Ito Keisuke, memoir of (*), xiv. 401.

I to, T. — A Short Memoir of Ito Keisukd, Rigaku Hakushi (Doctor of Philosophy) (with Portrait), xiv. 401.

— Floating Apparatus of the Leaves of Pistia stratiotes, xiii. 466.

— Rhizophoreae in Japan, xiii. 465.

— Some remarkable Marine Monocotyle- dons in Japan, xiii. 464.

J-

Jacobinia, appearance of a brilliant pigment after injury, xix. 167.

Japan, marine Monocotyledons in, xiii. 464 ; Rhizophoreae in, xiii. 465.

Jeffrey, E. C. — On Infranodal Organs in Galamites and Dicotyledons (Plates VIII and IX), xv. 135.

— The Anatomy and Development of the Stem in the Pteridophyta and Gymno- sperms, xv. 779.

— The Gametophyte of Botrychium vir- ginianum, xi. 481.

— The Wound Reactions of Brachyphylluin (Plates XXVII and XXVIII), xx. 383.

Johnson, D. S. — On the Development of the Leaf and Sporocarp in Marsilia quadrifolia (Plates X-XII), xii. 119.

Jones, G. E. — Anatomy of the Stem of Species of Lycopodium, xii. 558.

Julianiaceae, a new Natural Order of Plants, affinities, xx. 469 ; general description, xx. 467 ; geographical distribution, xx. 468 ; 469.

Juliania, diagnoses of species of, xvii. 443.

— adstringens, description, xvii. 443.

— amplifolia, n. sp., description, xvii. 444.

— glauca, n. sp., description, xvii. 444.

— Huancui, description, xvii. 445.

— mollis, description, xvii. 444.

Jurassic Flora of Britain (+), xiii. 610.

K.

Kalanchoe Bentii jxK. flammea a71 (*), xvii. 439-

— flammea 5 x K. Bentii 0^ (*), xvii. 437.

— hybrid, a (*), xvii. 435.

Karaka as an edible fruit, xvii. 757.

Karyokinesis. See Nuclear division.

Kaulfussia aesculifolia, morphology of leaf

(*), xix. 261 ; vascular system of petiole (*), xix. 263.

— vascular system of stem, xvi. 379.

Kew, periodical development of Algae in artificial waters at, xvii. 274.

Kinematograph, use of in demonstration of the movements of flowers (*), xvii. 761.

Klebs, G. — Alternation of Generations in the Thallophytes, xii. 570.

Kny, L. — On Correlation in the Growth of Roots and Shoots (Second Paper), xv. 613.

L.

Laccase, occurrence of in Polyporus squa- mosus, xx. 50.

Lachenalia Nelsoni, seedling-structure, xvii. 2 1.

Lachnea scutellata, cell-division in ascus (*), xiii. 507.

Lagenostoma Kidstoni, description,?;, sp. (t), xix. 327.

Index to Vo Is. XI -XX.

21

Lagenostoma Lomaxi, structure of the Palaeozoic seed, with a statement of the evidence upon which it is referred to Lyginodendron (t), xviii. 321.

• the seed of Lyginodendron (t), xvii.

625.

— Sinclairi, description (f), xix. 327.

— some species of: A Type of Pterido- spermous Seed from the Coal Measures (+), xix. 326.

■ — structure (* +), xvii. 459.

Lang, W. H. — Alternation of Generations in the Archegoniatae, xii. 583.

— On Apogamy and the Development of Sporangia upon Fern Prothallia, xii. 251.

■ — On Apospory in Anthoceros laevis (Plate XXVII), XV. 503.

• — On a Prothallus provisionally referred to Psilotum (Plate XXXVII), xviii. 571.

■ — On the Morphology of Cyathodium (Plates XXI and XXII), xix. 41 1.

— On the Prothalli of Ophioglossum pen- dulum and Helminthostachys zeylanica (Plates I— I II), xvi. 23.

— Preliminary Statement on the Develop- ment of Sporangia upon Fern Prothalli, xi. 157.

— Studies in the Development and Mor- phology of the Cycadean Sporangia, I. The Microsporangia of Stangeria paradoxa (Plate XXII), xi. 421.

— Id. II. The Ovule of Stangeria paradoxa (Plates XVII and XVIII), xiv. 281.

— The Prothallus of Lycopodium clavatum (Plates XVI and XVII), xiii. 279.

Larix, seedling-structure, xx. 472.

- — spindle-formation in pollen-mother-cells : felt, formation of (*), xvii. 292 ; pre-radial stages (*), xvii. 289 ; radial stages (*), xvii. 291 ; spindle (*), xvii. 295.

Lastraea dilatata, var. cristata gracilis, de- velopment of sporangia on prothallus, xi.

158.

Latex, carbohydrates of, xiv. 200 ; coagula- tion, xii. 165 ; xiv. 195 ; exudation of from severed petioles of Hevea brasiliensis and Plumiera acutifolia, xiv. 205 ; function, xi. 334; xiii. 620; xiv. 194 ; oxydases, xiv. 199; properties, difference of, between latex of old and young organs, xiv. 203 ; proteids, xiv. 195 ; wounding, effect of previous on flow, xiv. 204.

Laticiferous plants, proteolytic enzymes in, xvii. 246.

— system of seed of Hevea brasiliensis (*), xiv. 208.

— tissue, origin and function of, xiv. 210.

Lathraea Squamaria, function and structure

of leaves (*), xi. 385 ; xii. 118.

Lawson, A. A. — The Gametophytes, Ar- chegonia, Fertilization, and Embryo of Sequoia sempervirens (Plates I-IV), xviii. 1.

Lawson, A. A.— The Gametophytes, Fer- tilization, and Embryo of Cryptomeria japonica (Plates XXVII-XXX), xviii. 417.

Leaf and sporocarp in Marsilia quadrifolia, development (*), xii. 119.

— of Anemia hirsuta, an anomalous, xv. 765.

Leaf-traces in Araucarieae, persistence, xv.

423, 547.

Leake, H. M. — The Localization of the Indigo-producing Substance in Indigo- yielding Plants (Plate XIII), xix. 297.

Leaves, digestion by, xix. 157 ; Asparagus officinalis, xix. 160 ; Cucurbita Pepo var. ovifera, xix. 160 ; Ficus Carica, xix. 159; Phytolacca decandra, xix. 159 ; Rheum officinale and undulatum, xix. 158.

— influence of correlation upon size of (*), xx. 79 ; reaction of to traumatic stimula- tion (*), xv. 533.

Lentinus lepideus, reaction of fruit-bodies of to external stimuli (*), xix. 427.

Leotia, description (*), xi. 259, 285.

— acicularis, systematic position, xi. 286.

— aquatica, description (*), xi. 292.

— atrovirens, description (*), xi. 286.

— Bulliardi, description (*), xi. 272.

— chlorocephala, description, xi. 290.

f. Stevensoni, description, xi. 289.

— circinans , description (*), xi. 261.

— clavus, description (*), xi. 260.

— Dicksoni, description (*), xi. 272.

— elegans, description, xi. 274.

— elegantula, description, xi. 294.

— exigua, description, xi. 285.

— fructigena, description, xi. 294.

— gelatinosa capitulo subviridi, description (*), xi. 288.

— geoglossoides, description (*), xi. 269.

— gracilis, description (*), xi. 261.

— laricina, description (*), xi. 272.

— lubrica, description (*), xi. 287.

f. chlorocephala, description, xi. 290.

— f . Stevensoni, description, xi. 289.

f. stipitata, description (*), xi. 290.

var . vis cos a, description (*), xi. 290.

— Ludnvigii , description (*), xi. 272.

— marcida, description (*), xi. 291.

— mitrula , description (*), xi. 276.

var. pusilla, description (*), xi. 277.

— ochroleuca, description (*), xi. 262.

— platypoda, description (*), xi. 293.

— pusilla , description (*), xi. 277.

— rufa, description, xi. 294.

— stagnalis, description, xi. 293.

— Stevensoni , description, xi. 289.

— truncorum, description (*), xi. 260.

— uliginosa, description (*), xi. 272.

— verpoides, description, xi. 294.

— viridis, description (*), xi. 269.

Lepidocarpon, n. gen., description (f), xiv.

717 ; morphology, xiv. 714.

Lepidodendron aculeatum, anatomy and morphology (* +), xx. 371, 374.

22

Annals of Botany.

Lepidodendron obovatum, structure (f), xx. 317.

— parichnos (* +), xx. 271.

Lepidostrobus, ligule (* +), xii. 256. Leptoglossum, description, xi. 253, 264.

— flavurn, description (*), xi. 256.

— littorale , description, xi. 283.

— luteum , description (*), xi. 275.

— microsporum, description (*), xi. 282.

— olivaceum , description, xi. 270.

■ — tremellosum, description, xi. 283.

— F* viride , description (*), xi. 269.

Leptomin, xv. 181.

Leptosporangiatae, past history of (+), xx. 217.

Leptosporangiate Ferns, arrangement of vascular strands in the seedlings of (*),

xix. 365.

spore-formation (*), xviii. 445.

studies in the morphology of the spore-

producing members, xiii. 320. Leuchtenbergia, morphology of embryo and seedling (*), xii. 459.

Leucojum, absciss-layer in leaf, xii. 151. Lewis, F. J. — Formation of an irregular Endodermis in the Roots of Ruscus sp. (two text-figures), xiv. 157.

— The Action of Light on Mesocarpus, xii. 418.

Lewton-Brain, L. — Cordyceps ophioglos- soides (Plate XXVIII), xv. 521. Libocedrus decurrens, seedling - structure,

xx. 472.

Life at low temperatures, suspension of, xvi.

589.

Light, influence of direction of upon form (*), xx. 456.

upon germination and early growth

(*), xx. 453.

— on Mesocarpus, action of, xii. 418. Lignification of phloem of Helianthus an-

nuus, xvi. 180, xx. 319.

Ligule of Lepidostrobus (* t), xii. 256. Lilaea subulata, embryo (*), xii. 1 8 ; embryo- sac (*), xii. 14; endosperm (*), xii. 24 ; flower-development, female (*), xii. 10 ; male (*), xii. 7 ; inflorescence, develop- ment (*), xii. 6 ; morphology of young plant (*), xii. 5 ; pollination, xii. 18 ; style and stigma (*), xii. 13.

Liliaceae, seedling-structure (*), xvii. 8. Lilium canadense, nuclear division in the pollen-mother-cells of (*),xix. 189; hetero- typic division (*), xix. 190; homoeotypic division (*), xix. 219.

— croceum, seedling-structure, xvii. 25.

— Henryi, seedling-structure, xvii. 25.

— Martagon, heterotype and homotype division (*), xi. 214; male pronucleus, formation (*), xi. 208; pollen - grain nucleus, formation (*), xi. 190; spermato- genesis (*), xi. 187.

Lindsaya-type of fern-stele (*), xvi. 157.

Lipase, occurrence of in Polyporus squamo- sus, xx. 53.

Liquids and gases in relation to carbon- assimilation and translocation, static diffu- sion of, xiv. 537.

Liverworts, conducting strands (*), xv. 4.

Lomaria gibba, seedling - structure, xix. 370.

— spicant, seedling-structure (*), xix. 373.

Lomax, J. — On some New Features in Rela- tion to Lyginodendron oldhamium (t),

xvi. 601.

— On the Occurrence of the Nodular Con- cretions (Coal Balls) in the Lower Coal Measures, xvi. 603.

— and Wild, G. — A new Cardiocarpon- bearing Strobilus (t), xiv. 160.

Loranthus aphyllus, haustoria of, histology (*)> xv. 753 ; morphology (*), xv. 749.

Loxsoma, anatomy of solenostelic Ferns, xv. 7i.

— and other Ferns, relationships between, xv. 90.

— Cunninghamii ; a correction, xv. 433; petiole-structure (*), xv. 81 ; root-struc- ture, xv. 80 ; stem-structure (*), xv. 75.

Lulham, R. B. J., and Tansley, A. G. — A Study of the Vascular System of Ma- tonia pectinata (Plates XXXI-XXXIII and five text-figures), xix. 475.

On a New Type of Fern-Stele and

its probable phylogenetic Relations (ten text-figures), xvi. 157.

Luminous bacteria, xvi. 587.

Lupinus hirsutus, proteases of, xx. 116, 118.

Lycopodiaceous cone from the Coal Mea- sures, on Spencerites, a new (t), xi. 590.

Lycopodineae, morphology of sporangial integuments, xvi. 598; seed-like fructifica- tion in Palaeozoic (t), xiv. 713.

Lycopodium, anatomy of stem, xii. 558 ; imperfect sporangia of, xv. 229 ; parichnos in (*), xx. 269.

— clavatum, antheridia and archegonia (*), xiii. 285 ; endophytic fungus of prothallus (*), xiii. 291 ; embryo (*), xiii. 301 ; pro- thallus, morphology and structure (*•), xiii. 280 ; stem-structure, xii. 558 ; young plant (*), xiii. 289.

— rigidum, abnormal plurality of sporangia (*), xvii. 278.

— scariosum, stem-structure, xiv. 315.

— squarrosum, stem-structure, xii. 558.

— volubile, stem-structure, xiv. 315.

Lyginodendron anomalum, stem-structure

(* t), xi. 80.

— Lagenostoma Lomaxi the seed of (i),

xvii. 625; xviii. 321.

— oldhamium, fructification (*), xvi. 575 ; morphology and structure of stem (+), xvi. 601.

— robustum, n. sp., stem-structure (* t), xi. 65.

Index to Vols. XI-XX.

Lygodium, habit, xv. 360 ; petiole-structure and node (*), xv. 366 ; root-structure, xv. 370 ; seedling-structure (*), xv. 371; stem- structure (*), xv. 361.

Lysichiton, antipodal cells (*), xiv. 15 ; em- bryo (*), xiv. 17 ; endosperm (*), xiv. 16 ; ovule development (*), xiv. 13.

M.

Macdougal, D. T. — Symbiotic Sapro- phytism (Plates I and II and one text- figure), xiii. 1.

Macfadyen, A., and Barnard, J. E. — On Luminous Bacteria, xvi. 587.

— and Rowland, S. — On the Suspension of Life at Low Temperatures, xvi. 589.

Macrozamia Fraseri, structure of sporophyll, xii. 224.

Magnesium chloride, effect of on carbon- assimilation in Ulva latissima, xv. 62.

— nitrate, effect of on carbon-assimilation of marine Algae, xv. 673.

— sulphate, effect of on carbon-assimilation in Ulva latissima, xv. 65.

Magnus, P. — On Aecidium graveolens (Plate XIV), xii. 155.

— On some Species of the Genus Uro- phlyctis (Plates VII and VIII), xi. 87.

Magnusia Bartlettii, n. sp., description (*),

xv. 333-

— nitida, description (*), xvi. 69.

Malayan Ferns, myrmecophilous (*),xvi. 185.

Malin'vernia cuiserina, description (*),xv. 334.

Mamillaria, morphology of embryo and

seedling (*), xii. 460. elongata, morphology (*), xviii. 377 ; physiology, xviii. 395 ; root-structure (*), xviii. 381; stem - structure, xviii. 378; tubercle, homology of, xviii. 392 ; tubercle- structure (*), xviii. 384.

Mangrove seedlings, dispersal (*), xvii. 267.

Marasmius Sacchari causing root-disease of Sugar-cane (*), xvii. 391.

Marattiaceae, anatomy of Archangiopteris Henryi and other (*), xix. 259.

— anatomy of Danaea and other, xv. 777.

— anatomy (*), xvi. 517; comparison with Psaronius (+), xvi. 381 ; frond (*), xvi. 536; mucilage-ducts (*), xvi. 390, 547; root, xvi. 545 ; spore-producing members, morphology, xi. 488 ; stem (*), xvi. 371, 544 ; vascular strands, arrangement and structure (*), xvi. 371.

Marattia fraxinea, secondary thickening (*),

xvi. 388 ; vascular skeleton of young sporo- phyte (*), xvi. 376.

Marloth, R. — Some recent Observations on the Biology of Roridula (one text- figure), xvii. 15 1.

Marshall-Ward, H.— A Potato Disease, xii. 561.

— A Violet Bacillus from the Thames (Plate VI), xii. 59.

23

Marshall-Ward, H. — On Peziza aurantia,

xi. 339-

— On the Ginger Beer Plant, xi. 341.

— On the Relations between Host and Parasite in the Bromes and their Brown Rust, Puccinia dispersa, xvi. 233.

— Penicillium as a Wood-destroying Fungus,

xii. 565.

— Recent Researches on the Parasitism of Fungi, xix. 1.

— Some Methods for use in the Culture of Algae (Plate XXVIII), xiii. 563.

— Some Thames Bacteria, II (Plates XX and XXI), xii. 287.

— Id. Ill (Plates XII-XIV), xiii. 197.

— Symbiosis, xiii. 549.

— The Bromes and their Rust-fungus (Puc- cinia dispersa), xv. 560.

Marsilia quadrifolia, development of leaf and sporocarp (*), xii. 119; capsule (*), xii. 131 ; lamina (*), xii. 125 ; leaf (*), xii. 120 ; petiole (*), xii. 122 ; sori (*), xii. 133 ; sporocarp (*), xii. 127; stalk (*), xii. 130 ; vascular-bundle system (*), xii. 132.

Maslen, A. J. — The Ligule in Lepidostrobus (one text-figure) (+), xii. 256.

— The Relation of Root to Stem in Cala- mites (Plates I and II and one text-figure) (+), xix. 61.

— and Scott, D.H.— Note on the Structure of Trigonocarpon olivaeforme (t), xx. 109.

Mason-J ones, A. J., and Ewart, A. J. — The Formation of Red-wood in Conifers (Plate XV), xx. 201.

Massee, G. — A Monograph of the Genus Inocybe (Plate XXXII), xviii. 459.

— A Monograph of the Geoglosseae (Plates XII and XIII), xi. 225.

— On the Origin of Parasitism in Fungi, xviii. 319.

— On the Presence of Binucleate Cells in the Ascomycetes (one text-figure), xix. 325.

— and Salmon, E. S. — Researches on Co- prophilous Fungi, I (Plates XVII and XVIII), xv. 313.

— Id. II. (Plates IV and V), xvi. 57.

Matonia, functional relations of vascular

system in connexion with its evolution, xix. 510.

— pectinata, affinities, xiii. 320; leaf-mor- phology, xix. 477; protoxylems (*), xix. 503 ; roots, xix. 513 ; structure, xiii. 319 ; vascular system (*),xix. 482 ; young plants (*), xix. 475.

— sarmentosa, structure, xix. 481.

Matonia-type of structure, morphological

position and origin, xix. 508.

Matthaei, G. L. C. — The Effect of Tem- perature on Carbon Dioxide Assimilation, xvi. 591.

— and Blackman, F. F. — On the Reaction of Leaves to Traumatic Stimulation (Plate XXIX and five text-figures),xv.533.

24

Annals ' of Botany .

Maturation in Achlya americana var. cam- brica (*), xiii. 142, 160 ; Nemalion multi- fidum (*), xviii. 613; Pinus Strobus (*), xv. 442 ; Pythium de Baryanum (*), xv. 661 ; Pythium ultimum (*), xv. 281, 289. Meconopsis, description of species, xx. 343 ; distribution, xx. 336 ; generic characters, xx. 340 ; history, xx. 323 ; key to species, xx. 341; morphology (*), xx. 325; pro- perties, xx. 340; taxonomy, xx. 330.

— aculeata, description, xx. 347.

— bella, description, xx. 341.

— betonicifolia , description, xx. 369.

— cambrica, description, xx. 343.

— chelidonifolia, description, xx. 364.

— crassifolia, description (*), xx. 345.

■ — Delavayi, description, xx. 350.

— discigera, description (*), xx. 356.

— grandis, description, xx. 353.

— Guilielmi- Waldemari, description, xx. 347.

— Henrici, description, xx. 350.

— heterophylla, description (*), xx. 344.

— horridula, description, xx. 348.

var. racemosa, description, xx. 348.

var. rudis , description, xx. 347.

— integrifolia, description, xx. 352.

— integrifolia , description (*), xx. 353. lancifolia, description (*), xx. 349.

— ■ napaulensis, description, xx. 347.

— napaulensis, description (*), xx. 359.

— nepalensis , description, xx. 347, 357, 358.

— nipalensis, description, xx. 358, 359.

— Oliveriana, description, xx. 365.

■ — paniculata, description, xx. 358.

■ var. data, description, xx. 358.

• — paniculata , description, xx. 359.

— primulina, description, xx. 350.

— principis, description, xx. 350.

— pseudointegrifolia, description (*), xx. 353-

— punica, description, xx. 355.

— quintuplinervia, description, xx. 354.

— racemosa, description, xx. 347.

— • robusta, description, xx. 359.

— robusta , description, xx. 359.

— rudis, description, xx. 347.

— simplicifolia, description, xx. 354.

— sinuata, description, xx. 347.

var. Prattii , description, xx. 347.

— superba, description, xx. 357.

— torquata, description (*), xx. 355.

— - Wallichii, description (*), xx. 360.

var. rubrofusca , description, xx. 359.

— Wollastonii, description, xx. 358.

Medeola virginica, mechanism of stomata

(*), xvi. 333.

Medullosa anglica : a new representative of the Cycadofilices (+), xiii. 183 ; description, xiii. 187; root-structure (*), xvii. 425; structure, xiii. 183.

Megaloxylon Scotti, n. gen. et sp., descrip- tion (t), xiii. 613 ; structure, xiii. 612. Melampsora Rostrupi, sexuality (*), xx. 41.

Melanospora discospora, n. sp., description (*), xv. 352.

Melocactus, morphology of embryo and seedling, xii. 459.

Melon, precocious germination (*), xvi. 149. Meristele, definition, xvi. 523.

Merulius lubricus, description (*), xi. 288. Mesarch bundles in Gycadaceae, in peduncles (* +), xi. 399 ; in sporophylls (*), xii. 212, et seq.

Mesembryanthemum Bolusii, protective adaptations (*), xx. 125.

— truncatum, protective adaptations (*), xx. 123.

Mesocarpeae, observations on (*), xii. 37. Mesocarpus, action of light on, xii. 418. Mexican species of geophilous Peperomias (*), xx. 407.

Microascus nidicola, n. sp ., description (*),

xv. 350.

— variabilis, n. sp. , description (*), xv. 349. Microcachrys tetragona, vascular system of

female flowers (*), xiii. 537.

Microglossum, description, xi. 264.

— arenarium, description, xi. 283.

— atropurpureum, description (*), xi. 267.

— Hookeri, description (*), xi. 267.

— lutescens, description (*), xi. 271.

— multiforme , description (*), xi. 281.

— olivaceum, description, xi. 270.

— partitum, description, xi. 284.

— viride, description (*), xi. 269. Microsporangia of Stangeria paradoxa, de- velopment and morphology (*), xi. 421.

Migration of bulbs in the soil, xx. 429.

Milk of Cocos nucifera, proteolytic action of,

xvi. 9.

Milla biflora, seedling-structure, xvii. 32. Mirabilis divaricata, seedling-structure, xx. 474°

Mitrula, description, xi. 253, 263, 295.

— abietis, description (*), xi. 276.

— alba, description, xi. 284.

— alba, description, xi. 273.

— antarctica, description, xi. 284.

— arenaria, description, xi. 283.

— Berterii, description (*), xi. 268.

— bicolor, description, xi. 280.

— crispata, description (*), xi. 295.

— cucullata, description (*), xi. 276.

— elegans, description, xi. 274.

— exigua, description, xi. 285.

— fusispora, description (*), xi. 277.

— glabra, description (*), xi. 266.

— globosa, description (*), xi. 281.

— gracilis, description, xi. 278.

— Heyderi, description (*), xi. 276.

— Johnsoni, description, xi. 285.

• — laricina, description (*), xi. 271.

— ■ — f. alba, description, xi. 273.

— lilacina, description, xi. 257.

— lutea, description (*), xi. 275.

— luteola, description (*), xi. 274.

Index to Vo Is. XI -XX.

25

Mitrula lutescens , description (*), xi. 271, 275.

— microspora, description (*), xi. 281.

var. littorale, description, xi. 283.

var. tremellosa, description, xi. 282.

— multiforma, description, xi. 280.

f. capitata, description (*), xi. 280.

f. clavata, description (*), xi. 280.

f. pileata, description (*), xi. 280.

• — muscicola, description (*), xi. 279.

— nigripes , description, xi. 257.

— olivacea, description, xi. 270.

■ — paludosa , description (*), xi. 272.

•var. pachyceps , description (*), xi. 272.

— partita, description, xi. 283.

— phalloides, description (*), xi. 272.

•var . alba, description, xi. 273.

— pis til laris, description (*), xi. 275.

— purpurascens, description (*), xi. 266.

— pusilla, description (*), xi. 277.

• — Rehmii, description, xi. 279.

- — rufa, description (*), xi. 258, 275.

— Saccardoa, description, xi. 268.

— sclerotiorum, description, xi. 281.

— sclerotipes, description, xi. 278.

— serpentina, description (*), xi. 268.

- — spathulata, description (*), xi. 255.

— sphaerocephala, description, xi. 277.

— •vinos a, description (*), xi. 268.

— •viridis, description (*), xi. 269.

— vitellina, description (*), xi. 273.

Miyaki, K. — On the Development of the

Sexual Organs and Fertilization in Picea excelsa (Plates XVI and XVII), xvii. 351.

— The Fertilization of Pythium de Barya- num (Plate XXXVI), xv. 653.

Mnium cuspidatum, mechanism of stomata, xvi. 336.

Mohria, habit, xv. 392 ; petiole (*), xv. 393 ; root-structure, xv. 394 ; stem-structure (*), xv. 392.

Monascus, ascocarp development (*), xvii. 169; fertilization (*), xvii. 173; systematic position, xvii. 196.

Monocotyledonous habit, origin, xvii. 77. Monocotyledons and Dicotyledons, compara- tive antiquity, xvii. 68 ; origin, xix. 457.

— in Japan, some remarkable marine, xiii. 464.

— origin, xvii. 1,65, xx. 26, 173, 419; raphides (*), xii. 147; relations of, xx. 429; seed- leaf, homology of, xvii. 70 ; seedling-struc- ture (*), xvii. 8.

Monoecism of F unaria hygrometrica (*), xx. 293.

Monophyllaea, foliar organs, xx. 2 1 3. Moraea, spinous roots (*), xi. 330. Mottier, D. M. — Nuclear and Cell Division in Dictyota dichotoma (Plate XI), xiv. 163.

— The Development of the Spermatozoid in Chara (Plate XVII), xviii. 245.

— The Effect of Centrifugal Force upon the Cell (Plate XVIII), xiii. 325.

Mottier, D. M. — The Embryology of some Anomalous Dicotyledons (Plates XXVI and XVII), xix. 447.

Mougeotia, structure, &c. (*), xii. 37. Movements of branches in shrubs and trees, thermometric (*), xviii. 631.

— of bulbs in the soil, xx. 429.

— of leaves against excessive insolation, pro- tective, xi. 447, 585.

— of plants, the antiferment reaction in tropistic, xix. 75.

— of protoplasm in coenocytic hyphae (*),

xi. 491.

Mucedineae Amerosporae, coprophilous, xvi. 79-

Mucilage canals in Isoetes Hystrix (*), xx. 268 ; Lycopodium (*), xx. 269 ; Marattia- ceae (*), xvi. 390, 547.

— sacs of Fegatella conica (*), xviii. 92. Mucoraceae, coprophilous, xvi. 76.

Mucor racemosus, description (*), xvi. 76. Murrill, W. A. — The Development of the

Archegonium and Fertilization in the Hemlock Spruce (Tsuga canadensis), (Plates XXXI and XXXII), xiv. 583. Musa Livingstonia, seedling-structure, xvii.

50.

Muscari armenaicum, seedling-structure (*), xvii. 16.

— atlanticum, seedling-structure (*), xvii.

15.

— comosum, seedling-structure, xvii. 20.

— neglectum, seedling-structure (*), xvii. 18. Mycelium-life of the Fungus, the inter- cellular, xix. 58.

Mycelium of Gymnosporangium clavariae- forme (*), xviii. 336; of Phragmidium violaceum (*), xviii. 335, 342.

— perennial, xix. 57.

Mycoderma yeast, a fragrant (*), xiv. 215. Mycology, recent researches in, xix. 2.

My coplasm-life of the Fungus, the intracel- lular, xix. 58.

Mycoplasm theory of Fungus-parasitism, xix. L 55-

Mycorhiza, discovery of, xi. 175.

— from the Lower Coal Measures (* f), xviii. 255.

— of Angiosperms (*), xiii. 1 ; A plectrum hyemale (*), xiii. 7 ; Aplectrum spicant (*),

xii. 7 ; Bartonia, xx. 443, 445 ; Calypso borealis (*), xiii. 25 ; Calypso bulbosa (*), xiii. 25 ; Coptis trifolia, xiii. 30 ; Cypripedium acaule, xiii. 24; Cypri- pedium hirsutum, xiii. 24; Cypripedium parviflorum, xiii. 23 ; Cypripedium pubes cens ,

xiii. 24 ; Elaphomyces variegatus (*), xv. 526 ; Fegatella conica (*), xviii. 95 ; Good- yera repens , xiii. 20 ; Gyrostachys cernua, xiii. 27 ; Obolaria virginica (*), xi. 379 ; Peramium repens, xiii. 20 ; Pogonia ophioglossoides, xiii. 27 ; Psilotum trique- trum, xviii. 597 ; Pterospora andromedea

26

Annals of Botany.

(*), xiii. 34 ; Sarracenia purpurea, xiii. 30 ; Spirant hes cernua , xiii. 27.

Mycorhiza of prothallus of Helminthostachys zeylanica (*), xvi. 36 ; Lycopodium clava- tum (*), xiii. 291 ; Ophioglossum pendu- lum (*), xvi. 27 ; Psilotum (*), xviii. 573.

Mycorhizonium, description (* +), xviii. 260.

Myrmecophilous Ferns, Malayan (*), xvi. 185.

Myxomycetae, coprophilous, xvi. 89.

Myxomycete plasmodium, physiological pro- perties (*), xi. 179.

Myxotrichum aeruginosum, description (*), xvi. 65.

— coprogenum, description (*), xvi. 63.

var. malaccense , description, xvi. 63.

— Johnstoni, n. sp., description (*), xvi. 6L

— ochraceum , description, xvi. 63, 65.

— spinosum, n. sp., description (*), xvi. 64.

— uncinatum, description, xv. 325.

N.

Narcissus, absciss-layer in leaf (*), xii. 151.

Nectaries, bud-scales serving as extra-floral (*), xviii. 217.

Nectria ornatata, n. sp., description (*), xvi. 75-

Nectrioideae, coprophilous, xvi. 75.

Nemalion multifidum, chromatophore-divi- sion (*), xviii. 612 ; chromatophore-struc- ture (*), xviii. 610; cystocarp develop- ment (*), xviii. 617 ; fertilization (*), xviii. 617; maturation (*), xviii. 613; mitosis (*), xviii. 620 ; nucleolus (*), xviii. 621 ; oogenesis (*), xviii. 613 ; re- duction-division (*), xviii. 623 ; sexual reproduction (*), xviii. 613; spermato- genesis (*), xviii. 615.

Neolecta, description, xi. 297.

— flavo-virescens, description (*), xi. 297.

Nepenthes, digestion products, xii. 552 ;

proteases, xix. 183 ; proteolytic enzyme,

xi. 563; xii. 545 ; xv. 563; zymogen, xii. 550.

Nephrodium hirtipes, seedling-structure (*), xix. 393.

— setigerum, seedling-structure (*), xix. 392.

— spinulosum var. dilatatum, seedling-struc- ture, xix. 369.

Nephrolepis cordifolia, seedling-structure (*), xix. 389; stolon-structure, xix. 392.

Nephthytis liberica, embryo, xix. 343 ; em- bryo-sac (*), xix. 339 ; endosperm (*), xix. 343 ; fertilization (*), xix. 342 ; flower, xix. 337 ; ovule (*), xix. 338.

Newcombe, F. C. — Cellulose-Enzymes, xiii. 49.

— Geotropic Response at Various Angles of Inclination, xix. 31 1.

— The Sensory Zone of Roots (one text- figure), xvi. 429.

Nigella damascena, seedling-structure, xvii.

53-

Nile, the ‘ Sadd ’ of the Upper, xvi. 495 ; xvii. 446.

Nitella, effect of centrifugal force on cell, xiii. 346.

Nitophyllum Hilliae, cystocarp development (*), xii. 193.

— laceratum, cystocarp development (*),

xii. 192.

Nitragin, economic importance of, xv. 511. Nitrates, effect of on carbon-assimilation of marine Algae, xv. 669.

Nodular concretions in the Lower Coal Measures, occurrence of (*), xvi. 603. Nothochaena Marantae, structure (*), xvii. 695, 698.

— sinuata, seedling-structure (*), xix. 385. Nuclear division in asci (*), xiii. 467 ; in

Botrychium virginianum during spore- formation (*), xix. 465 ; in Crypto- meria Japonica (*), xviii. 419; in Dic- tyotaceae (*), xviii. 141, 183; in Dic- tyota dichotoma (*), xiv. 163 ; in Fos- sombronia longiseta (*), xx. 94 ; in Hel- minthostachys zeylanica (*), xx. 179; in Larix, pollen-mother-cells (*), xvii. 279 ; in Leptosporangiate Ferns during spore- formation (*), xviii, 445 ; in Lilium cana- dense (*), xix. 189 ; heterotype division (*), xix. 190 ; homotype division (*), xix. 219 ; in Lilium Martagon during spermato- genesis (*), xi. 187 ; in Nemalion multi- fidum (*), xviii. 620; in Pellia (*), xv. 147 ; in Peronospora parasitica, xiv. 271 ; in Phaseolus root-apex (*), xviii. 29 ; in Picea excelsa gametophytes (*), xvii. 354; in Pinus generative nucleus (*), xv. 193 ; in Pinus Strobus (*), xv. 436 ; in Riccia glauca (*), xv. 275; in Saccharo- myces (*), xii. 530 ; in Saprolegnieae (*), xviii. 552 ; in sporangia (*), xiii. 467; in Tsuga canadensis archegonium (*), xiv. 588 ; in Uredineae (*), xviii. 345, 356.

effect of gases on (*), xix. 521 ; carbon

dioxide, xix. 526 ; chloroform, xix. 528 ; ethyl ether, xix. 527 ; hydrogen, xix.

525-

■ effect of ammonium carbonate on, xix.

529 ; of cold, xix. 528 ; of heat, xix. 529 ; of a vacuum, xix. 527.

— fusion in Basidiomycetes, xviii. 361 ; in Uredineae (*), xviii. 349.

Nucleolus of the Dictyotaceae, xviii. 156 ; of root-apex of Phaseolus (*), xviii. 29.

— possible function of in heredity, xiii. 269.

Nucleus, effect of centrifugal force on (*),

xiii. 351.

— of Saccharomyces, xii. 568.

N uy tsia floribunda, morphology and structure of seedling (*), xiv. 312.

Nyctaginaceae, seedling-structure, xx. 473.

Index to Vo Is, XI-XX.

o.

Obolaria virginica, anatomy and morphology (*), xi. 369.

Oceanic islands, powder-seed plants in, xix. 362.

Odontites rubra, excretion of water by leaves, xi. 392.

Oedocephalum glomerulosum, description (*), xvi. 80.

• — ochraceum, n. sp., description (*), xvi.

80.

Oedogonium, development and structure of young plants (*), xvi. 467 ; xviii. 648 ; ger- mination of zoospores (*), xvi. 412 ; zoo- spores, abnormal formation and develop- ment (*), xvi. 481.

Oidiopsis sicula — O. taurica, xx. 198.

Oidiopsis taurica, an endophytic member of the Erysiphaceae (*), xx. 187 ; descrip- tion (*), xx. 195 ; distribution, host-plants, and synonymy, xx. 194, 198.

• var. lanuginosa, description, xx. 199 ;

distribution and host-plants, xx. 199 ; synonymy, xx. 198.

Oidium gignsporum — O. taurica, xx. 198.

— Haplophylli — O. taurica, xx. 198.

Oliver, F. W. — The Ovules of the Older

Gymnosperms (Plate XXIV and one text-figure) (t), xvii. 451.

— and Scott, D. H. — On Lagenostoma Lomaxi, the seed of Lyginodendron (t), xvii. 625.

On the Structure of the Palaeozoic

Seed Lagenostoma Lomaxi, with a State- ment of the Evidence upon which it is referred to Lyginodendron, xviii. 321.

Onoclea, fertilization (*), xii. 261.

Oogenesis in Nemalion multifidum (*), xviii. 613.

Oospore of Pinus Strobus, division of (*), XV. 449-

Oospores of Cutleria, germination (*), xii.

85.

Ophioglosseae, root-structure (*), xiii. 377 ; secondary thickening (*), xiii. 386 ; spo- rangia, imperfect, xv. 256.

Ophioglossum, germination of spores, xx. 321 ; sporangia, imperfect, xv. 256.

— pendulum, antheridium development (*), xvi. 29; archegonia development (*), xvi. 30 ; embryo (*), xvi. 31 ; mycorhiza of prothallus .(*), xvi. 27, 28 ; prothallus (*), xvi. 25 ; root-structure (*), xiii. 380.

— simplex, morphology and structure (*), xviii. 205.

— vulgatum, root-structure (*), xiii. 378 ; secondary thickening (*), xiii. 386.

Optima and limiting factors, xix. 281.

Opuntia, morphology of embryo and seed- ling (*), xii. 439.

Orange, pleiotaxy of gynaecium (*), xvi. 154-

27

Ornithogalum exscapum, seedling-structure, xvii. 21.

— sulphureum, seedling-structure, xvii. 20. Osmotic optimum and measurements, xii.

568.

Ovule, morphology and structure (*), xviii. 57;

of the older Gymnosperms (* +), xvii. 451. Oxidase and enzyme, xvii. 257.

Oxidases in latex, xiv. 199.

P.

Palaeozoic Lycopods, occurrence of seed- like fructification in (t), xiv. 713.

— plants, Megaloxylon, a new genus of (f), xiii. 612.

— seed types, ordinary (* +), xvii. 453. Palmae, seedling-structure, xvii. 47. Palmellaceae, evolution and polymorphism,

xi. 101.

Papain, xix. 149 ; proteolytic action, xvi. 5. Papaver cambricum, description, xx. 343.

— — - perenne Jiore sulpkureo, description, xx. 343-

— crassifolium , description (*), xx. 345.

— heterophyllum, description (*), xx. 344. •var. crassifolium, description (*), xx.

345-

— paniculatum , description, xx. 358.

— - simplicifolium, description, xx. 354.

Paper, structure of an ancient, xii. hi. Papillae in epidermoidal layer of calamitean

root (* t), xviii. 645.

Parasite and host, relations between in Bromus and Puccinia dispersa, xvi. 233. Parasitism, Eriksson’s hypothesis, xix. 21.

— of Aecidium graveolens (*), xii. 155 ; of Fungi, recent researches in, xix. 1 ; origin of, xviii. 319 ; of Harveyella mirabilis (*), xiii. 26 ; of Uredineae, xix. 14, 55; of Urophlyctis, xi. 87.

Parental characters, distribution of to the germ cells, xix. 246.

Parichnos, function, xx. 271 ; in Isoetes Hystrix, xviii. 654 (*), xx. 268 ; in Lepido- dendron (*+), xx. 271 ; in Lycopodium (*), xx. 269 ; in recent plants If +), xviii. 654 ; xx. 267.

Parkin, J. — Observations on Latex and its F unctions (Plate XII), xiv. 193.

— On a brilliant Pigment appearing after Injury in Species of Jacobinia (N. O. Acanthaceae), xix. 167.

— On some points in the Histology of Monocotyledons (Plate XIII), xii. 1 47.

— On the Reserve Carbohydrates of the Bulb of the Hyacinth (Hyacinthus orien- tals), xiv. 155.

— Some Observations bearing on the Func- tion of Latex, xiii. 620.

— The Extra-floral Nectaries of Hevea brasiliensis (the Para Rubber tree), an Example of Bud-scales serving as Nectaries (Plate XVI), xviii. 217.

28

A nnals of Botany .

Parnassia palustris, ovary (*), xv. 186.

Parthenogenesis in Cutleria (*), xii. 79 ; in Dictyotaceae (*), xviii. 196 ; in Dictyota dichotoma, xii, 559.

Pathology, recent researches on plant, xix. 8.

Pearson, H. H. W. — Anatomy of the Seedling of Bowenia spectabilis (Plates XXVII and XXVIII), xii. 475.

— The Double Pitchers of Dischidia Shel- fordii, n. sp., xvii. 617.

Pediastreae, evolution and polymorphism, xi. no.

Pedicularis palustris, leaf-structure and ex- cretion of water, xi. 387.

Peduncle of Cycadaceae, anatomy (* +), xi. 399*

Peirce, G. J. — Studies of Irritability in Plants (Plate XXXV), xx. 449.

— The Dissemination and Germination of Arceuthobium occidentale (Plates III and IV), xix. 99.

Pelargonium rapaceum, morphology of flower, xiii. 181.

Pelecyphora, seedling-morphology, xii. 464.

Pellaea rotundifolia, structure (*), xvii. 695.

Pellia epiphylla, the quadripolar spindle in spore-mother-cell of, xv. 431.

— nuclear studies on (*), xv. 147.

Penicillium as a wood-destroying F ungus, xii.

565-

— insigne , description (*), xv. 331.

Peperomia, embryo-sac of (*), xv. 103.

— geophilous species of, anatomy (*), xx. 413; fruit and seed structure (*), xx. 398; germination (*), xx. 401.

— amplexifolia, seedling-structure (*), xx. 167.

— eburnea, seedling-structure (*), xx. 164.

— gracillima, morphology, xx. 411.

— macandra, seedling-morphology (*), xx. 412.

— maculosa, seedling-structure, xx. 170.

— mexicana, fruit and seed (*), xx. 41 1 ; seedling-morphology (*), xx. 412.

— parvifolia, fruit and seed (*), xx. 404 ; seedling-morphology (*), xx. 405 ; seed- ling-structure (*), xx. 404.

— pedicellata, fruit and seed (*), xx. 408 ; seedling-morphology (*), xx. 409 ; seed- ling-structure (*), xx. 410.

— pellucida, embryo, xv. 1 1 1 ; embryo-sac (*), xiii. 626; xv. 105, no; endosperm (*), xv. 108; fertilization (*), xv. 108; flower, xv. 104; fruit, xv. in; pollen (*), xv. 107; pollination (*), xv. 107; seedling-structure (*), xx. 165 ; systematic position, xv. 116.

— peruviana, germination (*), xx. 401 ; morphology (*), xx. 401 ; seedling-struc- ture (*), xx. 404, 413.

— polystachya, seedling-structure, xx. 1 66.

— tithymaloides, seedling-structure (*), xx. 169.

Peperomia umbilicata, fruit and seed (*), xx. 408 ; seedling-morphology, xx. 408.

— verrucosum, fruit (*), xx. 406.

Pepsin, xvi. 17.

Peptolysis in Agaricus campestris, xviii. 312 ; in Saccharomyces cerevisiae, xviii. 299.

Peptonization in Agaricus campestris, xviii. 309 ; in Saccharomyces cerevisiae, xviii. 301.

Peramium repens, morphology, xiii. 20 ; my- corhiza, xiii. 20 ; structure of vegetative parts, xiii. 20.

Perennial mycelium, does it exist in the wintering corn plant ? xix. 57.

Pereskia, morphology of embryo and seed- ling (*), xii. 438.

Periodicity in Ceylon, foliar, xvi. 594 ; in Dictyota, is it an hereditary character? xix. 546 ; in Haliseris, xix. 552.

— of sexual cells in Dictyota dichotoma (*), xix. 531 ; cause of, xix. 541.

Perisporiaceae, coprophilous (*), xv. 330, xvi. 67.

Peronospora parasitica, fertilization (*), xiv. 263 ; nuclear division, xiv. 269, 271.

Pertz, D. F. M. — On the Distribution of Statoliths in Cucurbitaceae, xviii. 653.

— On the Gravitation Stimulus in Relation to Position, xiii. 620.

— The Position of Maximum Geotropic Stimulation, xix. 569.

— and Darwin, F. — On the Artificial Pro- duction of Rhythm in Plants, with a Note on the Position of Maximum Heliotropic Stimulation (four text-figures), xvii. 93.

Petioles of Ferns, structure and phylogenetic importance, xv. 9 5.

Petrospongium Berkeleyi, plurilocular spo- rangia of (*), xiii. 461.

Pezizaceae, coprophilous, xvi. 66.

Pezi%a, description, xi. 286.

— aurantia, germination of spores, xi. 339.

— cornucopiae , description (*), xi. 288.

— e, verpoides , description, xi. 294.

— {Hum aria) salmonicolor , description, xvi. 66.

Pfeiffera, seedling-morphology, xii. 453.

Phaeophyceae, phylogenetic relations of primitive, xiv. 678.

Phaeostilbeae, coprophilous, xvi. 86.

Phajus grandifolius, localization of indigo- producing substance (*), xix. 306.

— maculatus, localization of indigo-pro- ducing substance, xix. 307.

— Wallichii, localization of indigo-producing substance, xix. 307.

Phallus , description, xi. 286.

— marcidus , description (*), xi. 291.

Phaseolus, root-apex : nuclei, reconstitution

of the daughter (*), xviii. 47 ; nucleolus, changes in during prophase (*), xviii. 45 ; nucleolus, structure (*), xviii. 42 ; nucleus, resting (*), xviii. 41.

Index to Vo/s. XI-XX.

Phaseolus multiflorus, proteases of seeds, xx.

1 15? n8.

■ — vulgaris, proteases of seeds, xx. 1 16, 118. Phialea verpoides , description, xi 294. Phillips, R. W. — On the Development of the Gystocarp in Rhodymeniales, I (Plates XVII and XVIII), xi. 347.

— Id. II. Delesseriaceae (Plates XV and XVI), xii. 173.

— The Form of the Protoplasmic Body in certain Florideae, xii. 569.

Philocopra cunvicolla, description (*), xv. 337-

pleiospora, description^*), xv. 338.

— setosa , description (*), xv. 336. Philodendron, ovule, xiv. 1 3.

Phloem of Helianthus annuus, lignification, xvi. 180; xx. 319.

Phlomis grandiflora, n. sp ., description, xix. 441.

— imbricata , description, xix. 441.

— lunariaefolia , description, xix. 440, 441.

— lunarifolia, description, xix. 440 ; species confused with it, xix. 439.

Phoenix dactylifera, enzyme-secreting cells of, in seedling (*), xviii. 267 ; incapacity of endosperm for self-digestion, xx. 61 ; seedling-structure, xvii. 49.

Phormium tenax var. atropurpurea, raphides (*), xii. 149.

Photosynthesis, action of chloroform on, xii. 415 ; effect of temperature on, xvi. 591.

— and translocation, static diffusion of gases and liquids in relation to, xiv. 537.

— in Ulva latissima, effect of salts on, xv. 39.

— of marine Algae, effect of nitrates on, xv. 669.

Phragmidium violaceum, aecidium develop- ment (*), xviii. 338 ; mycelium (*), xviii. 335? 342 ; promycelium (*), xviii. 327 ; spermogonia, xviii. 335 ; teleutospore (*), xviii. 327? 343-

Phycomyceteae, coprophilous, xvi. 76. Phycomycetes, sexuality of, xiii. 576. Phyllocactus, morphology of embryo and seedling (*), xii. 446.

Phyllocladus alpinus, affinities, xx. 262 ; female cone (*), xx. 261 ; male cone (*), xx. 262 ; vegetative organs, morphology (*), xx. 260.

Phylloglossum, imperfect sporangia of, xv. 228.

Phyllophora and Actinococcus (*), xiii. 253. Phyllotaxis, note on (*), xv. 481 ; principles of (*), xviii. 227.

Phylogeny of Angiosperms, xx. 173; Cac- taceae, xii. 469; Conjugatae (*), xii. 54; Gutleria, xii. 103 ; Cyperaceae, xx. 24 ; Hymenophyllaceae, xiv. 48 r ; Monocotyle- dons,xvii. 1; xx. 173, 414; Uredineae, xix. 44»

Phytolacca decandra, digestion by leaves, xix. 159.

29

Phytophora infestans, mode of obtaining, xx. 334-

Phytoplankton of Thames, xvi. 576; xvii. 631 ; xix. 163.

Picea excelsa, archegonia abnormal (*), xvii, 364; archegonium development (*), xvii. 357 ; fertilization (*), xvii. 362 ; male gametophyte, development (*), xvii. 353 ; maturation of egg (*), xvii. 360 ; proem- bryo formation (*), xvii. 363 ; ventral canal-cell, formation (*), xvii. 359.

Pigment in Jacobinia, appearance of a brilliant, after injury, xix. 167.

Pilobolus, cell-division in sporangia (*), xiii. 490.

Pilocereus, morphology of embryo and seed- ling (*), xii. 449.

Pinus, a proliferous cone of (*), xvii. 779.

— development of pollen-tube and division of the generative nucleus (*), xv. 193.

— histology of sieve-tubes (*), xv. 575; albuminous cells (*), xv. 600 ; callus, origin (*), xv. 597 ; callus rods, formation (*), xv. 590 ; callus, value, xv. 605; con- necting threads, function, xv. 603 ; sieve- plate, development (*), xv. 588, 594 ; slime-strings, function, xv. 603.

— excelsa, vascular system of female flowers (*)? xiii. 537-

— Gerardiana, seedling-structure, xx. 473.

— montana var. gallica, seedling-structure, xx. 473.

— Murrayana var. Sargenti, seedling-struc- ture, xx. 472.

— Strobus, archegonium development (*), xv. 436 ; central cell, division (*), xv. 439 ; conjugation of sexual nuclei (*), xv. 447 ; fertilization (*), xv. 447 ; matura- tion of egg (*), xv. 442 ; oospore, first division in (*), xv. 449 ; proteid vacuoles (*), xv. 459 ; segmentation nuclei, division (*), xv. 455; sexual nuclei, conjugation (*), xv. 447 ; sperm nucleus, fate of, xv. 464 ; stalk-cell, fate of (*), xv. 464 ; vege- tative nucleus, fate of (*), xv. 464 ; ventral canal-cell (*), xv. 441.

— sylvestris, seedling-structure, xx. 473; vascular system of female flower (*), xiii. 536.

— Thunbergii, seedling-structure, xx. 473.

Piperaceae and Araceae, comparison, xx. 4 17.

— seedling-structure (*), xx. 162.

Piperales, seedling-structure, xx. 161.

Piper cornifolium, seedling-structure (*),

xx. 162.

— geniculatum, seedling-structure, xx. 164.

Pistia stratiotes, floating apparatus in leaves

xiii. 466.

Pisum sativum, proteases of seeds, xx. 116,

1 1 8.

Pitchers of Dischidia rafflesiana, evolution (*), xvi. 365 ; of Dischidia Shelfordii, xvii. 617.

3°

Annals of Botany.

Pith, morphological status, xix. 514.

Plagiogyria biserrata, structure (*),xvii. 698.

Plagiopteron fragrans, affinities and anatomi- cal characters, xvi. 177.

Plankton of some English rivers, xix. 163; of Thames, xvi. 576; xvii. 631.

Plasmodium, physiological properties of a Myxomycete (*), xi. 179.

Platyzoma, habit, xv. 734 ; structure (*), xv. 735-

Pleiotaxy of gynaecium of Orange (*), xvi. 154-

Pleuroascus, n. gen., description, xv. 330.

— Nicholsoni, n. sp., description (*), xv. 330.

Plocamium coccineum, cystocarp develop- ment (*), xi. 352.

Plowman, A. B. — The Comparative Ana- tomy and Phylogeny of the Cyperaceae (Plates I and II and two text-figures) (+), xx. 1.

Plumaria elegans, cystocarp development (*), xi. 361.

Plumbaginaceae, insects and flowers, xvii. 320.

Plumiera acutifolia, exudation of latex from, xiv. 205.

Podocarpeae, vascular system of female flower (*), xiii. 537.

Podospora curwicolla , description (*), xv. 337*

— Jimiseda war. appendical at a, description (*), xv. 340.

— pleiospora , description (*),xv. 338.

— setosa , description (*), xv. 336.

Podostemaceae, dorsi-ventrality of, with re- ference to current views on evolution, xvi. 593-

Pogonia ophioglossoides, mycorhiza, xiii. 27 ; root-structure, xiii. 27.

Poilanthes tuberosa, raphides (*), xii. 150.

Pollen-mother-cells of Larix, spindle-forma- tion ; felt, formation of (*), xvii. 292 ; pre- radial stages (*), xvii. 289; radial stages (*), xvii. 291 ; spindle (*), xvii. 295.

— of Lilium canadense, nuclear division in (*), xix. 189 ; heterotypic division (*) xix. 190; homoeotypic division (*), xix. 219.

Pollen-tube, development of and division of the generative nucleus in Pinus(*), xv. 193.

Pollination of Cuphea, xvii. 163; of Lilaea subulata, xii. 1 8 ; of Peperomia pellucida (*), xv. 107; of Pinus (*), xv. 199; of Roridula (*), xvii. 15 1.

Pollinium and sperm cells in Asclepias Cor- nuti, development (*), xvi. 123.

Polychaetia paniculata, description, xx. 358, 360.

Polycotyledony (*), xvi. 553 ; origin of in Gymnosperms, xx. 473.

Polygonatum biflorum, mechanism of sto- mata (*), xvi. 343.

— multiflorum, raphides, xii. 149.

Polygonum amphibium, infranodal organs (*), xv. 144.

— tinctorium, localization of indigo-pro- ducing substance, xix. 305.

Polymorphism of green Algae, xi. 97 ; of Cutleria multifida (*), xii. 75.

Polypodium aureum, periderm (*), xix. 383 ; petiole-structure (*), xix. 382 ; seedling- structure (*), xix. 378.

- — carnosum, biological considerations, xvi. 212 ; leaf-structure (*), xvi. 203 ; mor- phology (*), xvi. 188; rhizome-structure (*), xvi. 193 ; root-structure (*), xvi. 201 ; systematic position, xvi. 221.

— Schneideri, structure (*), xi. 533.

— sinuosum, biological considerations, xvi. 212; leaf-structure (*), xvi. 21 1 ; mor- phology (*), xvi. 207 ; rhizome-structure (*), xvi. 209 ; root-structure, xvi. 2 1 1 ; systematic position, xvi. 221.

Polyporus squamosus, enzymes of, xx. 49.

Polytrichum, central cylinder (*), xv. 16; cortex (*), xv. 14; rhizome, histology (*), xv. 13 ; stem, histology of aerial leafy (*), xv. 24.

Polystely in Primula (*), xi. 307.

Pond, R. H. — The Incapacity of the Date Endosperm for Self-Digestion, xx. 61.

Poronia leporina, description (*), xvi. 74.

— punctata, anatomy (*), xiv. 251 ; biology (*), xiv. 245 ; life-history (*), xiv. 246.

Portulaceae, seedling-structure, xx. 474.

Position of maximum geotropic stimulation, xix. 569.

Potassium chloride, effect of on carbon- assimilation in Ulva latissima, xv. 62.

— nitrate, effect of on carbon-assimilation in marine Algae, xv. 670.

— phosphate, effect of on carbon-assimila- tion in marine Algae, xv. 677.

Potato disease, xii. 561.

Potentilla palustris, infranodal organs (*), xv. 140.

Potter, M. C. — On the Occurrence of Cellulose in the Xylem of Woody Stems (Plate VIII), xviii. 121.

Prain, D. — A Review of the Genera Meco- nopsis and Cathcartia (Plates XXIV and XXV), xx. 323.

Primofilices, ancient Ferns (+), xx. 218.

Primula, apex, xi. 323; leaves of seedling, xi. 316; petiole-structure (*), xi. 31 1; polystely (*), xi. 307 ; seedling-structure 1 (*), xi. 317 ; variations in flower of species (*), xvi. 317.

— floribunda, variations in flowers, xvi. 321.

— veris, variations in flowers, xvi. 318, 325.

— vulgaris, variations in flowers (*), xvi. 319,

325.

Primulaceae, development of pistil, xvi.

322.

Proliferation of ‘flowers’ of Cephalotaxus, xv. 643 ; of Pinus cone (*), xvii. 779.

Index to Vo Is. XI -XX.

3i

Promycelium of Gymnosporangium clava- riaeforme (*), xviii. 329; of Phragmidium violaceum (*), xviii. 327.

Proserpinaca palustris, heterophylly (*), xviii.

579-

Protease, nature of fibrin-digesting, xix. 172. Proteases and antiseptics, xvii. 602.

— of Agaricus campestris, xix. 179 ; *\nanas sativus, xix. 177 ; Carica Papaya, xix. 176 ; Hordeum sativum, xix. 179 ; Hyacinthus orientalis, xix. 182; Nepenthes, xix. 183; Polyporus squamosus, xx. 51 ; Saccharo- myces cerevisiae, xix. 178.

— of plants, xviii. 289; xix. 149, 171 ; xx. 113. Protective adaptations (*), xx. 123; Ana-

campseros papyracea (*), xx. 126; Mesem- bryanthemum Bolusii (*), xx. 125; Me- sembryanthemum truncatum (*), xx. 123.

— movements of leaves against excessive insolation, xi. 447, 585.

— red dye, xi. 460, 585.

Proteids of latex, xiv. 195.

Proteid vacuoles of archegonium of Pinus Strobus (*), xv. 459.

Proteolysis, tryptophane in, xvi. 1.

Proteolytic enzymes in bulbs, xvii. 250 ; in fruits, xvii. 242 ; in laticiferous plants, xvii. 246; in leaves, xvii. 249; in Nepenthes,

xi. 563 ; xii. 545 ; xv. 563 ; in plants, xvii. 2 37, 597; in roots, xvii. 251; in seeds, xvii. 241; in stems, xvii. 247; in tubers, xvii. 251.

Prothallus of Helminthostachys zeylanica (*), xvi. 23 ; Lycopodium clavatum (*), xiii. 279 ; Ophioglossum pendulum (*), xvi. 23 ; Psilotum triquetrum (*), xviii. 571 ; Schizaea bifida, xvi. 165.

Protococcaceae, evolution and polymor- phism, xi. 107.

Protoplasm, action of hydrogen on streaming of, xix. 523.

— action of carbon dioxide on streaming of, xix. 526.

— in coenocytic hyphae, movements of (*),

xi. 491.

Protoplasmic body in Florideae, form of,

xii. 569.

Protostele, definition, xvi. 523.

Psaronius, comparison with Marattiaceae (t), xvi. 381.

Pseudomonas hirtum, cell-contents (*), xx. 254; cell-division (*), xx. 248 ; characters (*), xx. 255; ciliation (*), xx. 252; cultures (*), xx. 237; development of spores (*), xx. 250; germination of spores (*), xx. 236; growth (*), xx. 241 ; motility, xx. 252 ; spores (*), xx. 234. Pseudo-Pleurococcus, n.gen ., description (*),

xiii. 189, 194.

— botryoides, n. sp., description (*), xiii. 191,

194.

— vulgaris, n.sp., description (*), xiii. 193, 194. Psilotaceae, imperfect sporangia, xv. 254.

Psilotum triquetrum, leaf-structure (*), xviii. 594; morphology (*), xviii. 505, 589; mycorhiza (*), xviii. 573, 597; prothallus (*), xviii. 571 ; secondary thickening (*), xviii. 508; sexual organs (*), xviii. 573 ; sporangia imperfect, xv. 254 ; stem-struc- ture (*), xviii. 507, 592, 594, 59<5, 598.

Pteridophyta and Gymnosperms, anatomy and development of stem, xv. 779.

— Bower’s classification, xvii. 618.

— imperfect sporangia, are they vestigial ? xv. 225.

— - nature and origin of primitive stele, xv. 35.

Pteridospermae, a new class of fossil plants (t), xviii. 322.

Pteridospermous seed from the Coal Mea- sures, new species of Lagenostoma, a type of (* +), xix. 326.

Pteris elata var. Karsteniana, structure (*), xvii. 702.

— palmata, seedling-structure, xix. 397.

Pterospora andromedea, morphology (*),

xiii. 31 ; mycorhiza (*), xiii. 34; structure of vegetative organs, xiii. 34.

Ptilota plumosa, cystocarp development (*), xi. 361.

Puccinia Adoxae, sexuality of (*), xx. 43.

— dispersa and Bromes, xv. 560 ; xvi. 233 ;

xix. 19. *

experiments on, xvi. 487 ; germination

of uredospores, xvi. 261.

— glumarum, histology, xix. 35.

— Malvacearum, sexuality of (*), xx. 42.

— Poarum, sexuality of (*), xx. 40.

Pyronema confluens, sexual reproduction (*),

xiv. 321.

Pythium de Baryanum, fertilization (*), xv. 659; oosphere, formation (*), xv. 659; oospore, maturation (*), xv. 661 ; sexual organs, development (*), xv. 656.

— ultimum, n. sp., biology and cytology (*),

xv. 269 ; conidia-formation, xv. 278 ; de- scription (*), xv. 300 ; dissemination of spores, xv. 285 ; fertilization (*), xv. 280; germination of conidia (*), xv. 276; ger- mination of oospores, xv. 282 ; growth and temperature, relation between, xv. 286; growth of mycelium, xv. 277 ; matura- tion of oospores (*), xv. 281, 289; sapro- phytism,xv. 286 ; sexual organs, formation (*), xv. 278, 289 ; temperature and growth, relation between, xv. 286.

Pyxisporeae, observations on (*), xii. 40.

CL

Quadripolar spindle in the spore-mother- cells of Pellia epiphylla, xv. 431.

R.

Ranunculaceae, seedling-structure (*), xvii. 52.

Ranunculus Ficaria, seedling-structure (*), xvii. 63.

32

A nnals of Botany .

Raphides of Monocotyledons (*), xii. 147.

Reactions of fruit-bodies of Lentinus lepi- deus to external stimuli (*),xix. 427.

Red dye, protective, xi. 460, 585.

Red-wood in Conifers, formation (*), xx. 201.

Reed, H. S. — A Study of the Enzyme- secreting Cells in the Seedlings of Zea Mais and Phoenix dactylifera (Plate XX), xviii. 267.

Reduction of chromosomes, xix. 233.

Reid, C. — Further Contributions to the Geological History of the British Flora, xii. 243.

Rennetase, occurrence in Polyporus squa- mosus, xx. 53.

Reproduction in Conjugatae (*), xii. 29 ; in Dictyota dichotoma, xii. 559; in Fegatella conica (*), xviii. 97.

Resistance to flow in wood vessels (*), xix.

442.

Rcsticularia Boodlei, n. sp., parasitic on Toly- pothrix, description (*), xvii. 654.

— nodosa, parasitic on Tolypothrix (*), xvii. 650.

Rheotropic sensitiveness of the apex of the root (*), xvi. 430.

Rheotropism of Myxomycete plasmodia, xi. 180. *

Rheum officinale, digestion by leaves, xix. 158.

— undulatum, digestion by leaves, xix. 158.

Rhinanthus Crista-galli, leaf-structure and

excretion of water, xi. 390.

Rhipsalis, morphology of seedling and em- bryo (*), xii. 452.

Rhizophoreae in Japan, xiii. 465.

Rhodymeniales, cystocarp development (*), xi. 347 ; xii. 175.

Rhythm, artificial production of (*), xvii. 93.

Riccia glauca, fertilization (*), xx. 275 ; spore-development (*), xx. 275.

Richards, H. M. — The Evolution of Heat by Wounded Plants (Woodcuts 1 and 2), xi. 29.

Ridley, H. N. — On the Dispersal of Seeds by Wind, xix. 351.

— On the Foliar Organs of Monophyllaea, xx. 213.

Rind disease of Sugar-cane, xiv. 610 ; (*), xvii. 383.

— fungus disease of Sugar-cane, xiv. 617.

Ripartites stragiceps , description, xviii. 499.

Rivers, Plankton of some English, xix. 163.

Robertson, A. — Some Points in the Mor- phology of Phyllocladus alpinus (Plates XVII and XVIII), xx. 259.

— The Droppers of Tulipa and Erythronium (Plates XXXI and XXXII), xx. 429.

— and Sargant, E.— -The Anatomy of the Scutellum in Zea Mais (Plate V), xix. 115-

Root disease of Sugar-cane, xiv. 614; (*), xvii. 391.

— pressure in trees, xviii. 181.

— relation of, to stem in Calamites (* t), xix. 61.

— structure of Bignonia capreolata, xii. 327 ; Bignonia Unguis (*), xii. 325; Bignonia venusta, xii. 326: Dioscorea prehensilis (*), xvii. 413.

Roots and shoots, correlation in growth of,

xv. 615.

— new instances of spinous (*), xi. 327 ; xvii. 413.

— of Medullosa anglica (* +), xvii. 425.

— sensory zone of (*), xvi. 429.

Roridula, nutrition and pollination (*), xvii.

isi-

Rose, J. N., and Hemsley, W. B. — Diag- noses specierum Generis J uliania, Schlecht. , Americae tropicae, xvii. 443.

Rowland, S., and Macfadyen, A.— On the Suspension of Life at Low Temperatures,

xvi. 589.

Ruscus, irregular endodermis in root (*),

xiv. 157.

Rusts of the Bromes, xvi. 238.

Ryparobius ascophanoides, description (*),

xv. 327.

— monascus, description (*), xv. 326.

S.

Saccharomyces, alcoholic enzymes, xi. 555 ; xii. 491; budding (*), xii. 530; glycogen vacuoles (*), xii. 527 ; nuclear apparatus (*), xii. 516 ; spore-formation (*),xii. 532 ; structure (*), xii. 515, 567 ; vacuole, origin (*), xii- 526.

— anomalus, a fragrant Mycoderma yeast (*), xiv. 215 ; culture (*), xiv. 217; fer- mentation, xiv. 229; germination, xiv. 225; morphology, xiv. 216; physiology, xiv. 226; relationship with Endomyces decipiens, xiv. 237 ; spores, xiv. 224.

— Cerevisiae, autolysis, xviii. 294 ; pepto- lysis, xviii. 299; peptonization, xviii. 301 ; protease, xix. 178; proteolytic action, xvi. i3-

— sexual spore-formation, xv. 759. Saccobolus quadrisporus, n. sp., description

(*), xv- 329-

‘ Sadd/ clearing the, xvii. 449 ; grasses of the, xvii. 446 ; of the Upper Nile, xvi. 495 ;

xvii. 446 ; in America, xvi. 572 ; <v. ‘ Sudd/ xvii. 448.

Sagittaria variabilis, mechanism of stomata (*), xvi- 338.

Salix, change in sex of, xii. 557.

Salmon, E. S.— A Monograph of the Genus Streptopogon (Plates VIII-X), xvii. 107.

— Cultural Experiments with ‘ Biologic Forms5 of the Erysiphaceae, xviii. 320.

— Further Cultural Experiments with ‘Bio- logic Forms’ of the Erysiphaceae, xix. 125.

Index to Vols. XI-XX.

S3

Salmon, E. S.-— On Endophytic Adaptation shown by Erysiphe graminis under Cul- tural Conditions, xix. 444.

— On Oidiopsis taurica,an Endophytic Mem- ber of the Erysiphaceae (Plates XIII and XIV), xx. 187.

— On the Genus Fissidens (Plates V-VII), xiii. 103.

— and Massee, G. — Researches on Copro- philous Fungi (Plates XVII and XVI II), xv. 313.

Id. II (Plates IV and V), xvi. 57.

Sanguinaria canadensis, embryology (*), xix. 452.

Saprolegnieae, fertilization, xiii. 447 ; (*), xviii. 541 ; structure and division of the nucleus (*), xviii. 552.

Saprophytism of Pythium ultimum, xv. 286.

— symbiotic (*), xiii. 1.

Sargant, E. — A New Type of Transition from Stem to Root in the Vascular System of Seedlings (Plate XXXIII), xiv. 633.

— A Theory of the Origin of Monocotyle- dons, founded on the Structure of their Seedlings (Plates I-VII and ten text- figures), xvii. 1.

— Recent Work on the Results of Fertiliza- tion in Angiosperms, xiv. 689.

— The Formation of the Sexual Nuclei in Lilium Martagon, II. Spermatogenesis (Plates' X and XI), xi. 187.

— and Robertson, A. — The Anatomy of the Scutellum in Zea Mais (Plate V), xix.

115.

— and Scott, R.— On the Development of Arum maculatum from the Seed (Plate XXV), xii. 399.

Sarracenia purpurea, mycorhiza, xiii. 30.

Saururaceae, seedling-structure (*), xx. 171.

Saururus cernuus, seedling-structure (*), xx. r72.

Schizaeaceae, anatomy (*), xv. 359; cavity parenchyma, xv. 394 ; comparison of structure of species of (*), xv. 411 ; fibres (*), xv. 400; hairs, xv. 403; sieve-tubes (*), xv. 395 ; siliceous deposits, xv. 402 ; stele, xv. 403 ; stem-structure, xiii. 624.

Schizaea, habit, xv. 373 ; petiole-structure and node (*), xv. 377 ; root-structure, xv. 378; stem-structure (*), xv. 373.

— bifida, anatomy, xvii. 523 ; prothallus, xvi.

165.

■ — dichotoma, endodermal pockets (*), xvii. 515; endodermis, internal (*), xvii. 516; ontogeny, xvii. 527 ; rhizome, branching of (*), xvii. 512; tracheides, internal (*), xvii. 517.

structure of a small form of (*), xvii.

526.

— malaccana, description (*), xvii. 494 ; leaf and leaf-trace (*),xvii. 502 ; root-structure, xvii. 504; sporangia (*), xvii. 494; stelar anatomy, phylogenetic significance (*),

xvii. 498 ; stem anatomy (*), xvii. 495 ; tissue - differentiation behind apex, xvii. 508 ; tissue systems at stem-apex, develop- ment (*), xvii. 504.

Schizaea pusilla, anatomy of young plant (*), xvii. 523.

Sciadopitys verticillata, vascular system of female flowers (*), xiii. 540.

Scilla festalis, seedling-structure, xvii. 20.

— peruviana, seedling-structure, xvii. 2 1.

— sibirica, seedling-structure (*), xvii. 20.

Scitamineae, seedling-structure, xvii. 50.

Scolopendrium vulgare var. ramulosissimum,

development of sporangia on prothalli, xi. 161.

Scott, D. H. — On a Primitive Type of Structure in Galamites (+), xv. 773.

— On Cheirostrobus, a New Type of Fossil Cone from the Calciferous Sandstone (t), xi. 168.

— On Medullosa anglica : a new Represen- tative of the Cycadofilices (t), xiii. 183.

— On Spencerites, a new Genus of Lycopo- diaceous Cones from the Coal Measures (t), xi. 590.

— On the Occurrence of a Seed-like Fruc- tification in Certain Palaeozoic Lycopods (t), xiv. 713.

- — On the Occurrence of Sigillariopsis in the Lower Coal Measures of Britain (t), xviii.

519.

— On two new Instances of Spinous Roots (Plates XV and XVI), xi. 327.

— On the Primary Wood of certain Arau- carioxylons (+), xiii. 615.

— On the Structure and Affinities of Fossil Plants from the Palaeozoic Rocks, V. On a new Type of Sphenophyllaceous Cone (Sphenophyllum fertile) from the Lower Coal Measures (t), xix. 168.

— The Anatomical Characters presented by the Peduncle of Cycadaceae (Plates XX and XXI), xi. 399.

— The Structure of Lepidodendron obova- tum (t), xx. 317.

— and Hill, T. G. — The Structure of Isoetes Hystrix (Plates XXI 1 1 and XXIV and two text-figures), xiv. 413.

— and Maslen, A. J. — Note on the Struc- ture of Trigonocarpon olivaeforme (t), xx. 109.

— and Oliver, F. W. — On Lagenostoma Lomaxi, the Seed of Lyginodendron (+), xvii. 625.

On the Structure of the Palaeozoic

Seed Lagenostoma Lomaxi, with a State- ment of the Evidence upon which it is referred to Lyginodendron (t), xviii. 321.

Scott, R. — On the Movements of the Flowers of Sparmannia africana and their Demonstration by means of the Kine- matograph (Plates XXXVII-XXXIX), xvii. 761.

34

Annals of Botany.

Scott, R., and Sargant, E. — On the Development of Arum maculatum from the Seed (Plate XXV), xii. 399.

Scrophulariaceae, function and structure of leaves of some (*), xi. 385.

Scutellum of Zea Mais, enzyme-secreting cells (*), xviii. 273 ; epithelium and glands (*), xix. 1 17; vascular system (*),xix. 119.

Seasonal dimorphism of Cutleria (*), xii. 92.

Secondary thickening in Angiopteris evecta,

xvi. 173, 388 ; in Ophioglosseae (*), xiii. 386.

— xylem in Psilotum (*), xviii. 505.

Seed-leaf in Monocotyledons, homology of,

xvii. 70.

Seed-like fructification in Palaeozoic Lyco- pods (t), xiv. 713.

Seedling of Arum maculatum, course of bundles in stem (*), xii. 406 ; morphology, external (*),xii. 399; morphology, internal (*), xii. 404; transition from stem to root (*), xii. 408.

Seedling-morphology of Anhalonium (*), xii. 462 ; of Arum maculatum (*), xii. 399 ; of Astrophytum (*), xii. 457; of Gactaceae (*), xii. 423; of Cephalocereus (*), xii. 450 ; of Cereus (*), xii. 443 ; of Cyclamen, xx. 423 ; of Echinocactus (*), xii. 454 ; of Echinocereus (*), xii. 450 ; of Echinopsis (*), xii. 451 ; of Epiphyllum, xii. 448 ; of geophilous species of Peperomia (*), xx. 395; of Hevea brasiliensis, xviii. 220; of Leuchtenbergia (*), xii. 459; of Mamil- laria (*), xii. 460 ; of Melocactus, xii. 459 ; of Opuntia (*), xii. 439; of Pelecyphora, xii. 464 ; of Peperomia macandra (*), xx. 412 ; of Peperomia mexicana (*),xx. 412 ; of Peperomia parvifolia (*), xx. 405; of Peperomia pedicellata (*), xx. 409 ; of Peperomia peruviana (*), xx. 401 ; of Pepe- romia umbilicata (*), xx. 408 ; of Pereskia (*), xii. 438 ; of Pfeiffera, xii. 453 ; of Phyllocactus (*), xii. 446 ; of Pilocereus (*), xii. 449; of Proserpinaca palustris, xviii. 581 ; of Rhipsalis (*), xii. 452.

Seedling-structure of Angiosperms : Acan- thophoenix crinita, xvii. 48 ; Agave Ro- velliana, xvii. 42 ; Agave spicata, xvii. 41 ; Aizoaceae, xx. 474 ; Albuca Nelsoni (*), xvii. 9, 23; Allionia albida, xx. 473; Allium angulosum, xvii. 32 ; Allium asca- lonicum, xvii. 31 ; Allium Cepa, xvii. 31 ; Allium neapolitanum (*), xvii. 31 ; Allium Porrum, xvii. 31; Allium serufschanicum, xvii. 31 ; Aloe Buchanii, xvii. 38 ; Alstroe- meria, xvii. 41 ; Amaranthaceae, xx. 474 ; Amaranthus hypochondriacus, xx. 474 ; Amaryllidaceae, xvii. 40 ; Amomum an- gustifolium, xvii. 50 ; Anemarrhena as- phodeloides (*), xiv. 633, xvii. 26 ; Ane- mone coronaria, xvii. 56 ; Anthericum Liliago (*), xvii. 29 ; Anthurium Bakeri- anum, xvii. 2, 40, 45 ; Areca sapida, xvii.

48 ; Arisaema speciosuin, xvii. 45 ; Aroi- deae, xvii. 44 ; Arthropodium cirrhatum (*), xvii. 30 ; Arum maculatum, xvii. 44 ; Asparagus decumbens, xvii. 37 ; Asparagus officinalis, xvii. 37 ; Asphodeline liburnica (*), xvii. 26 ; Asphodelus albus, xvii. 27 ; Asphodelus cerasifer, xvii. 27 ; Asphodelus fistulosus, xvii. 27 ; Bloomeria aurea, xvii. 32 ; Bravoa geminifiora, xvii. 41 ; Brodiaea lactea, xvii. 32 ; Bulbine annua, xvii. 9, 28; Canna, xvii. 50; Caryophyllaceae, xx. 474; Chamaerops Fortunei, xvii. 49 ; Chamaerops humilis, xvii. 49 ; Chenopodiaceae, xx. 474 ; Chlorogalum pomeridianum (*), xvii. 28 ; Cordyline australis, xvii. 34 ; Delphinium nudi- caule (*), xvii. 54 ; Delphinium Requienii (*), xvii. 53 ; Desmoncus minor, xvii. 48; Dipcadi serotinum, xvii. 12; Dory- anthes excelsa, xvii. 42 ; Doryanthes Palmeri, xvii. 42 ; Dracaena Draco, xvii. 36 ; Elettaria cardamomum, xvii. 50 ; Eranthis hiemalis (*), xvii. 5, 56 ; Eremu- rus spectabilis, xvii. 27 ; Eremurus turke- stanicus, xvii. 27 ; Erythronium (*), xx. 437 ; Erythronium Hartwegi (*), xvii. 25; Eucomis nana (*), xvii. 18; Euterpe edulis, xvii. 50; Freesia, xvii. 44; Fritil- laria alpina, xvii. 25 ; Fritillaria imperials (*), xvii. 23 ; Galtonia candicans, xvii. 12 ; Geonoma oxycarpa, xvii. 49 ; Geophilous species of Peperomia (*),xx.395 ; Houttuy- niacordata (*), xx. 17 1 ; Hyacinthus orien- talis, xvii. 20 ; Hyacinthus romanus (*), xvii. 14 ; Iridaceae, xvii. 43 ; Iris Boissieri, xvii. 43 ; Iris sibirica, xvii. 43 ; Lachenalia Nelsoni, xvii. 21 ; Liliaceae (*), xvii. 8; Lilium croceum, xvii. 25 ; Liiium Henryi, xvii. 25 ; Milla biflora, xvii. 32 ; Monoco- tyledons (*), xvii. 8 ; Musa Livingstonia, xvii. 50 ; Muscari armenaicum (*), xvii. 16; Muscari atlanticum (*), xvii. 15; Muscari comosum, xvii. 20 ; Muscari ne- glectum (*), xvii. 18; Nigella damascena, xvii. 53; Nyctaginaceae, xx. 473; Orni- thogalum exscapum, xvii. 21 ; Ornitho- galum sulphureum, xvii. 20 ; Palmae, xvii. 47 ; Peperomia amplexifolia (*), xx. 167 ; Peperomia eburnea (*), xx. 164; Pepe- romia maculosa, xx. 170; Peperomia par- vifolia (*), xx. 404 ; Peperomia pedicellata (*), xx. 410 ; Peperomia pellucida (*), xx. 165 ; Peperomiaperuviana (*),xx. 404,413 ; Peperomia polystachya, xx. 166 ; Pepero- mia tithymaloides (*), xx. 169; Phoenix dactylifera, xvii. 49 ; Piperaceae (*), xx. 162 ; Piper cornifolium (*), xx. 162; Piper geniculatum, xx. 164 ; Portulaceae, xx. 474; Primula (*), xi. 317; Ranuncula- ceae (*), xvii. 52 ; Ranunculus Ficaria (*), xvii. 63 ; Scilla festalis, xvii. 20 ; Scilla peru- viana, xvii. 21 ; Scilla sibirica (*), xvii. 20 ; Saururaceae (*), xx. 17 1; Saururus cer-

Index to Vo Is. XI -XX.

nuus, xx. 172; Scitamineae, xvii. 50; Thrinax excelsa, xvii. 48 ; Tricyrtis hirta, xvii. 33; Trillium grandiflorum, xvii. 34; Tulip (*), xx. 434 ; Tulipa praecox (*), xvii. 25 ; Veratrum nigrum, xvii. 33 ; Yucca aloifolia, xvii. 35, 39; Yucca arborescens, xvii. 35; Yucca gloriosa, xvii. 36, 39; Zygadenus elegans (*), xvii. 32. Seedling-structure of Ferns : Alsophila ex- celsa (*), xvii. 710 ; Anemia (*), xv. 388 ; Aspidium falcatum (*),xix. 397 ; Aspidium Tsus-Simense (*), xix. 378; Aspienium bulbiferum (*), xix. 376; Aspienium nidus (*), xix. 395; Blechnum brasiliense, xix. 376 ; Dicksonia antarctica, xix. 399 ; Poodia aspera (*), xix. 366 ; Gleichenia,

xv. 733; Lomaria gibba (*), xix. 370; Lomaria spicant (*), xix. 373 ; Lygodium (*), xv. 371; Marattia fraxinea (*), xvi. 376; Matonia pectinata (*), xix. 482; Nephrodium hirtipes (*), xix. 393 ; Ne- phrodium setigerum (*), xix. 392 ; Ne- phrodium spinulosum var. dilatatum, xix. 369 ; Nephrolepis cordifolia (*), xix. 389 ; Nothochlaena sinuata (*), xix. 385 ; Poly- podium aureum (*), xix. 378 ; Pteris pal- mata, xix. 397 ; Schizaea pusilla (*), xvii. 523 ; Todea Fraseri, xix. 398.

Seedling-structure of Gymnosperms : Abies firma, xx. 472 ; Actinostrobus, xx. 472 ; Bowenia spectabilis (*),xii. 475 ; Callitris, xx. 472 ; Gedrus Deodara, xx. 472 ; Ce- phalotaxus pedunculata, xx. 471 ; Cupres- susLavvsoniana,xx. 472 ; Cupressuspisifera, xx. 472 ; Ginkgo biloba (*), xiv. 131 ; xvii. 789; Larix, xx. 472; Libocedrus decur- rens, xx. 472 ; Pinus Gerardiana, xx. 473 ; Pinus montana var. gallica, xx. 473 ; Pinus Murrayana var. Sargenti, xx. 472 ; Pinus sylvestris, xx. 473; Pinus Thunbergii, xx. 473; Taxus baccata, xx. 471; Taxus cuspidata, xx. 471; Thuja orientalis, xx. 472 ;.Tsuga diversifolia, xx. 473.

* Seedlings ’ of certain Leptosporangiate Ferns, arrangement of the vascular strands (*), xix. 365.

— ot Mangrove, dispersal (*), xvii. 267. Seeds, dispersal of by wind, xix. 351 ; pro- teases of, xx. 1 14; proteolytic action of,

xvi. 10 ; xvii. 241 ; resistance to high tem- peratures, xvi. 590.

Seed-types, ordinary Palaeozoic (* f)> xvii. 453-

Seed vitality, estimation of by an electrical method, xv. 427.

Selaginella, anatomy of leaf (*), xi. 123 ; anatomy of root (*), xvi. 449 ; female gametophyte (*), xvi. 422 ; male gameto- phyte, xvi. 426 ; sporangia, imperfect, xv. 252 ; spore-membranes (*), xvi. 421.

— albonitens, leaf-structure, xi. 141.

— r ■ apus, leaf-structure, xi. 14 1.

— atroviridis, root-structure (*), xvi. 456.

35

Selaginella Bakeriana, leaf-structure, xi. 143.

— bisulcata, leaf-structure, xi. 137.

— Braunii, leaf-structure, xi. 142.

— canaliculata, leaf-structure (*), xi. 139; root-structure (*), xvi. 460.

— caulescens, leaf-structure, xi. 132 ; root- structure (*), xvi. 458.

— chilensis, leaf-structure, xi. 140.

— ■ concinna, leaf-structure (*), xi. 142.

— convoluta, leaf-structure, xi. 136.

— cuspidiata, leaf-structure, xi. 135.

— delicatissima, leaf-structure (*), xi. 144.

— denticulata, leaf-structure (*), xi. 136.

— Douglassii, leaf-structure (*), xi. 138.

— erythropus, leaf-structure, xi. 132.

— flabellata, leaf-structure, xi. 136.

— Galeottei, leaf-structure (*), xi. 143; root-structure (*), xvi. 459.

— gracilis, leaf-structure, xi. 140.

— grandis, leaf-structure, xi. 131 ; root- structure (*), xvi. 458.

— Griffithii, leaf-structure, xi. 132.

— haematodes, leaf-structure, xi. 131.

— helvetica, leaf-structure (*), xi. 135; root- structure (*), xvi. 459, 461.

— inaequalifolia, leaf-structure, xi. 138.

— involvens, leaf-structure, xi. 145 ; root- structure (*), xvi. 458.

— Karsteniana, leaf-structure, xi. 133.

— Kraussiana, leaf-structure, xi. 1 44 ; root- structure (*), xvi. 451, 460.

— laevigata var. Lyallii, leaf-structure (*), xi. 147.

— lepidophylla, leaf-structure, xi. 145.

— Lobbii, leaf-structure, xi. 140; root- structure (*), xvi. 461.

— Lyallii, root-structure (*), xvi. 454.

— Martensii, leaf-structure (*), xi. 130.

• — Mettenii, leaf-structure, xi. 139.

— molliceps, leaf-structure, xi. 1 4 1 ; root- structure (*), xvi. 458.

— oregana, leaf-structure, xi. 147 ; root- structure (*), xvi. 459.

— patula, leaf-structure (*), xi. 136.

— pilifera, leaf-structure, xi. 146.

— plumosa, leaf-structure (*), xi. 138.

— Poulteri, leaf-structure, xi. 145.

— producta, leaf-structure (*), xi. 137.

— rubella, leaf-structure, xi. 145.

— rupestris, leaf-structure (*), xi. 147.

— serpens, leaf-structure (*), xi. 135.

— spinosa, leaf-structure (*), xi. 146.

— stenophylla, leaf-structure, xi. 134.

— suberosa, leaf-structure (*), xi. 133.

— sulcata, leaf-structure, xi. 144.

— uncinata, leaf-structure (*), xi. 137.

— Victoriae, leaf-structure, xi. 140.

— viridangula, leaf-structure, xi. 140.

— viticulosa, leaf-structure (*), xi. 134.

— Vogelii, leaf-structure, xi. 1 3 1 ; root- structure (*), xvi. 454.

— Wallichii, leaf-structure (*),. xi. 139; root-structure (*), xvi. 461.

D %

Annals of Botany.

36

Selaginella Wildenowii, leaf-structure (*), xi. 139; root-structure (*), xvi. 461.

Sensitive region, localization of geotropic (*), xiii. 567.

Sensory zone of roots (*), xvi. 429.

Sepedonium niveum, n. sp., description (*), xvi. 80.

Sequoia sempervirens, archegonia (*), xviii. 14 ; embryo (*), xviii. 20 ; female game- tophyte (*), xviii. 9 ; fertilization (*), xviii. 17 ; male gametophyte (*), xviii. 5.

Seward, A. C. — A Contribution to our Knowledge of Lyginodendron (Plates V and VI) (+), xi. 65.

— Anatomy of Lepidodendron aculeatum (Plate XXVI and three text-figures) (+), xx. 371.

— A New Genus of Palaeozoic Plants (t), xiii. 612.

— The Jurassic Flora of Britain (+), xiii. 610.

— The Structure and Affinities of Matonia pectinata, xiii. 319.

— and Gowan, J. — The Maidenhair Tree (Ginkgo biloba) (Plates VI I I-X), xiv. 109.

Sex, change in, of Willows, xii. 557.

Sexual cells in Dictyota dichotoma, periodi- city of (*), xix. 531.

— organs of Pythium ultimum (*), xv. 278, 281, 289.

Sexuality of Ascomycetes, xiii. 581 ; Basidio- mycetes, xiii. 585; Cutleria, xii. 102; Melampsora Rostrupi (*), xx. 41 ; Phy- comycetes, xiii. 576 ; Puccinia Adoxae (*), xx. 43 ; Puccinia Malvacearum (*), xx. 42 ; Puccinia Poarum (*), xx. 40 ; Saccharomycetes, xv. 759 ; Uredineae, xiii. 585 ; (*), xx. 35 ; Uromyces Ficariae (*), xx. 43 ; Uromyces Poae (*), xx. 37 ; Uromyces Scillarum (*), xx. 43 ; Ustila- gineae, xiii. 584.

— of the Fungi, xiii. 575.

Shaw, W. R. — The Fertilization of Ono- clea (Plate XIX), xii. 261.

Shoots and roots, correlation of growth in, xv. 615.

Shove, R. F. — On the Structure of the Stem of Angiopteris evecta (Plates XXVIII and XXIX), xiv. 497.

Sieve-plate of Pinus, development (*), xv. 588, 594.

Sieve-tubes of Angiosperms, histology, xvii. 265.

— of Pinus, albuminous cells (*), xv. 600 ; callus, origin (*), xv. 597 ; callus rods, formation (*), xv. 590 ; callus, value, xv. 605 ; connecting-threads, function, xv. 603; histology (*), xv. 575; sieve-plate, development (*), xv. 588, 594; slime- strings, function, xv. 603.

— of Schizaeaceae (*), xv. 395.

Sigillaria, stem-structure of a ribbed (t),

xiii. 607.

— elongata, stem-structure (t), xiii. 608.

Sigillariopsis, occurrence of in Lower Coal Measures of Britain (t), xviii. 519.

— sulcata, structure (t), xviii. 519.

Siliceous deposits in Schizaeaceae, xv. 402. Size of leaves, influence of correlation upon

(*)> xx. 79.

Smut in Barley, method of obtaining, xi. 333 ; xii. 5 66.

Snow, J. W. — Pseudo-Pleurococcus, n. gen. (Plate XI), xiii. 189.

Sodium bromide, effect of on carbon-as- similation in Ulva latissima, xv. 63.

— chloride, effect of on carbon-assimilation in Ulva latissima, xv. 53.

— nitrate, effect of on carbon-assimilation of marine Algae, xv. 672.

— sulphate, effect of on carbon-assimilation in Ulva latissima, xv. 66.

Solenostele, definition, xvi. 523.

Solenosteles, typical (*), xvii. 691 ; with internal accessory vascular strands (*), xvii. 689.

Solenostelic Ferns, anatomy (*), xv. 71 ; xvii.

689 ; transitional types (*), xvii. 694. Sordaria anserina, description (*), xv. 334.

— appendiculata, description (*), xv. 340.

— hreviseta , description (*), xv. 340.

— bombardioides, description, xvi. 73.

— curvicolla, description, xv. 337.

— decipiens, description, xv. 343.

— jimiseda , description (*), xv. 340.

var. appendiculata, description (*), xv.

34°-

— fumicola, description, xv. 342.

— globosa, n. sp., description (*), xv. 334.

— hirta, description (*), xv. 336.

— - macrospora, description (*), xv. 339.

— minima, description (*), xv. 335.

— minuta, description, xv. 342.

— neglecta, description (*),. xv. 339 ; xvi. 73.

— platyspora, description, xv. 342.

— pleiospora, description (*), xv. 338.

— setosa, description (*), xv. 336.

— stercoraria, description, xv. 343.

— * Winteri, description (*), xv. 340.

South American species of Geophilous

Peperomias (*), xx. 400.

Sparmannia africana, movements of flowers, and their demonstration by means of the kinematograph (*), xvii. 761.

Spathicarpa sagittaefolia, antipodal cells (*), xvii. 680; embryo (*), xvii. 681 ; embryo- sac (*), xvii. 678 ; endosperm (*), xvii. 680.

Spathularia, description, xi. 253.

— clavata, description (*), xi. 254.

— • crispata , description, xi. 295.

— - flava, description (*), xi. 255.

— flava , description (*), xi. 255.

— flavida , description (*), xi. 255.

— - — var. crispa , description (*), xi. 255. var. plicata, description (*), xi. 255.

— Neesii, description, xi. 258.

Index to Vo/s. XI -XX.

Spathularia nigripes, description, xi. 257.

— rufa, description, xi. 257, 258.

'var . badipes , description, xi. 258.

— velutipes, description (*), xi. 256. Spaihulea, description, xi. 253.

— rufa , description, xi. 258.

Spencerites, a new genus of Lycopodiaceous

cone from the Coal Measures (+), xi. 590.

— n.gen ., description (t), xi. 592 ; xix. 278.

— insignis (t), axis-structure (*), xix. 273 ; description, xi. 592 ; xix. 278 ; sporangia and sporophylls (*), xix. 276.

two new specimens of (* t), xix. 273.

— majusculus, n. sp., description (+), xi. 593. Spermatia, nature of (*), xviii. 346. Spermatogenesis in Fossombronia longiseta

(*), xx. 94; Lilium Martagon (*), xi. 187 ; Nemalion multifidum (*), xviii. 615. Spermatozoa of Ferns, chemotaxis, xiv. 543 ; physiology, xiv. 543 ; starch in vesicle of,

xiv. 579 ; swarm period, length in, xiv. 575 ; withdrawal of water from, xiv. 572.

Spermatozoid of Chara, development (*), xviii. 245 ; of Onoclea (*), xii. 272. Spermatozoids of Gymnosperms, xi. 344. Spermogonia of Gymnosporangium clava- riaeforme (*), xviii. 336 ; of Phragmidium violaceum (*), xviii. 335.

Sphaeriaceae, descriptions of coprophilous (*), xv. 334 ; xvi. 71.

Sphaeria bovilla, an immature stage of S01*- daria coprophila, xv. 343.

— stercoraria, description, xv. 343. Sphaeroderma fimbriatum, description (*),

xv. 351.

— Hulseboschii, description (*), xv. 352. Sphaeronaemella fimicola, description (*),

xvi. 75.

Sphaeropsideae, coprophilous, xvi. 75. Sphaerotheca, fertilization (*), xix. 567. Sphenophyllaceous cone (Sphenophyllum fertile) from Lower Coal Measures, new type of (t), xix. 168.

Sphenophyllum fertile, a new type of Sphenophyllaceous cone from the Lower Coal Measures (+), xix. 168. Spindle-formation in pollen-mother-cells of Larix: felt, formation of (*), xvii. 292 ; pre-radial stages (*), xvii. 289 ; radial stages (*), xvii. 291 ; spindle (*), xvii. 295. Spinous roots of Dioscoreaprehensilis, mor- phology and structure (*), xi. 327 ; xvii. 420.

Spiranthes cernua, mycorhiza, xiii. 27 ; root- structure, xiii. 27.

Spirogyra, effect of centrifugal force on cell of (*), xiii. 332.

Sporangia and asci, cell-division in (*), xiii. 467.

— in Lycopodium rigidum, abnormal plu- rality (*), xvii. 278.

— of Petrospongium Berkeleyi, plurilocular (*), xiii. 461.

Sporangia of Pteridophytes, imperfect: are they vestigial? xv. 225.

— on Fern prothalli, development, xi. 157, xii. 251.

Sporangial integuments, morphology, xvi. 596.

Spore-development in Helminthostachys zeylanica (*), xx. 177.

Spore-distribution of the Uredineae, xix. n. Spore-formation in Botrychium virginianum (*), xix. 465; Conjugatae (*), xii. 29; Leptosporangiate Ferns (*), xviii. 445 ; Saccharomycetes (*), xii. 532 ; xv. 759. Spore-producing members, studies in the. Part III. Marattiaceae, xi. 488 ; Part IV. Leptosporangiate Ferns, xiii. 320 ; Part V. General comparisons and conclusions,

xvii. 618,

Spores of Bacillus hirtus (*), xx. 234; de- velopment (*), xx. 250; germination (*), xx. 236.

— of Ophioglossum, germination, xx. 321.

— of Riccia glauca, development (*), xx.

275.

Sporocarp and leaf of Marsilia quadrifolia, development (*), xii. 119.

Sporodesmium piriforme, description (*),

xvi. 85.

Sporodinia, cell-division in the sporangium (*), xiii- 5°3-

Sporophyll-structure of Bowen ia spectabilis (*), xii. 219 ; Ceratozamia latifolia, xii. 232 ; Ceratozamia mexicana (*), xii. 232; Ceratozamia Miqueliana, xii. 233 ; Cycas circinalis (*), xii. 215 ; Cycas revoluta (*), xii. 2 t 1 ; Dioon edule (*), xii. 221 ; Encephalartos villosus (*), xii. 223 ; Ma- crozamia Fraseri, xii. 224 ; Stangeria paradoxa (*), xii. 215 ; Zamia Fischeri, xii. 230 ; Zamia furfuracea, xii. 229 ; Zamia latifolia, xii. 225; Zamia Lei- boldii (*), xii. 230; Zamia Lindeni (*), xii. 227; Zamia Loddigesii (*), xii. 228; Zamia muricata, xii. 227 ; Zamia pumila, xii. 226; Zamia Skinned, xii. 226. Sporophylls of Cycadaceae, vascular struc- ture (*), xii. 203.

Sporormia fimetaria, description (*), xv. 347.

— gigantea , description (*), xv. 346.

— longipes, n. sp., description (*), xv. 346.

— ovina, description (*), xv. 346.

— pulchella, description (*), xv. 347. Sporormiella nigropurpurea, description (*),

xv. 348.

Sprague, T. A.— On the Heteranthus sec- tion of Cuphea (Lythraceae) (Plate XI),

xvii. 159.

Spruce, Richard.— Biography (Portrait), xiv. xi.

Spumatoria, n.gen., description, xv. 350.

— longicollis, n. sp., description (*), xv. 351. Stangeria paradoxa ; microsporangia, de- velopment and morphology (*), xi. 421;

38

Annals of Botany .

xiv. 296; ovule, development and mor- phology (*), xiv. 281; peduncle-structure (*), xi. 402 ; sporophyll-structure (*), xii. 215.

Stapf, O. — The Statices of the Canaries of the subsection Nobiles, I. xx. 205.

— Id. II (with Map), xx. 301. Starch-accumulation in marine Algae, xv.

678.

Starch-formation in Hydrodictyon utricula- tum (*), xv. 619.

Starvation phenomena, xix. 39.

Statice arborea, distribution and history, xx. 206.

— brassicifolia, distribution and history, xx.

304.

— imbricata, distribution and history, xx. 3°3-

• — macrophylla, distribution and history, xx. 3OI«

— preauxii, distribution and history, xx. 308.

— puberula, distribution and history, xx. 3°5-

Statices of the subsection Nobiles of the Canaries, xx. 205, 301 ; Key, xx. 309. Statoliths in Cucurbitaceae, distribution, xviii. 653.

Stelar anatomy of Schizaea malaccana, phy- logenetic significance (*), xvii. 498.

- — theory, xi. 307; xiv. 481 ; xv. 71, 403, 739? 779 ; xvi.393,547; xvii. 498, 512, 529, 532, 736 ; xix. 400, 508.

Stele of Bryophyta, xv. 33 ; Ceratopteris thalictroides (*), xvi. 103 ; Equisetum,

xv. 774 ; Helminthostachys zeylanica (*),

xvi. 42 ; Lindsaya (*), xvi. 157 ; Marat- tiaceae (*), xvi. 376 ; Primula (*), xi. 307 ; Pteridophyta, nature and origin, xv. 33.

Stem, relation of to root in Calamites (* +), xix. 61.

Stephanospermum, morphology (* +), xvii. 453-

Stevens, W. C. — Spore Formation in Botrychium virginianum (Plates XXVIII- XXX), xix. 465.

Stigmarian rootlets, vascular branches (* +), xvi. 559 ; vascular supply (*), xviii. 180. Stimulation, position of maximum geotropic, xix. 569; reaction of leaves to traumatic (*), xv. 5 33.

Stomata, mechanism of (*), xvi. 327. Stopes, M. C. — On the Double Nature of the Cycadean Integument, xix. 561.

— The ‘ Epidermoidal ’ Layer of Calamite Roots (three text-figures) (t), xvii. 792.

Streaming of protoplasm, effect of carbon dioxide on, xix. 525; effect of hydrogen on, xix. 523.

Strength of cell-walls, tensile, xi. 585. Streptopogon, monograph of genus (*), xvii. 107.

— description, xvii. 1 13.

Streptopogon bolinjianus, description (*), xvii.

II5*

— ( Calymperella ) Schenckii, description (*),

xvii. 125.

— Calymperes, description (*), xvii. 125.

— calymperoides , description (*), xvii. 125.

— Calymperopsis, description (*), xvii. 126.

— cavifolius, description (*), xvii. 137.

— claviceps, description (*), xvii. 141.

— clavipes , description (*), xvii. 141.

— erythrodontus, description (*), xvii. 114. var. interm edius, n. •var ., description,

xvii. 1 16.

— — var. Rutenbergii, description, xvii.

1 16.

— erythrodontus, description (*), xvii. 141.

— Hampeanus, description (*), xvii. 126.

— latifolius , description (*) xvii. 132.

— Lindigii, description (*), xvii. 132.

— Masseei , description (*), xvii. 142.

— rigidus, description (*), xvii. 125.

— setiferus, description (*), xvii. 132. Strobilanthes flaccidifolius, localization of

indigo-producing substance, xix. 307. Sturch, H. H. — Harveyella mirabilis (Plates III and IV), xiii. 83.

Stylophorum cambricum , description, xx. 34 3*

— crassifolium , description (*), xx. 345.

— diphyllum, embryology (*), xix. 454.

— heterophyllum , description (*), xx. 344.

— nepalense, description, xx. 347, 358, 359.

— paniculatum, description, xx. 358, 359.

— simplicifolium , description, xx. 354. Stysanus fimetarius, description (*), xvi.

86.

Sudd *v. Sadd, xvii. 448.

Sugar-cane, diseases of, xiv. 611; (*), xv. 683 ; (*), xvii. 373.

— , on Dipiodia cacaoicola, a F ungus parasitic on (*), xv. 683.

— Trichosphaeria Sacchari, causing rind fungus disease of, xiv. 617.

Sulphates, effect of on carbon-assimilation in Ulva Jatissima, xv. 63.

Sunlight and of cold on aquatic plants, action of, xii. 363.

Susceptibility and immunity, xix. 20. Susceptible and immune varieties, and their hybrids, xix. 37.

Swamp vegetation of Lower Bengal, xvi. 509-

Symbionts, identity of fungal, xiii. 3. Symbiosis, xiii. 549 ; in prothallus of Lyco- podium clavatum (*), xiii. 291. See also Mycorhiza.

Symbiotic saprophytism (*), xiii. 1. Syncephalis intermedia, description (*), xvi. 77-

Synchitrium, cell-division in sporangium (*), xiii. 481.

Syndesmon thalictroides, embryology, xix. 456.

Index to Vo Is. XI-XX. 39

T.

Tansley, A. G., and Chick, E. — Notes on the Conducting Tissue-System in Bryo- phyta (Plates I and II), xv. i.

On the Structure of Schizaea malac-

cana (Plates XXV and XXVI and one text-figure), xvii. 493.

— and Lulham, R. B. J. — A Study of the Vascular System of Matonia pectinata (Plates XXXI-XXXIII and five text- figures), xix. 475.

On a new Type of Fern-stele, and its

probable Phylogenetic Relations (ten text- figures), xvi. 157.

Taonia, antherozoids (*), xi. 543.

Taxeae, vascular system of female flower (*), xiii. 540.

Taxodineae, vascular system of female flower (*), xiii. 540.

Taxus baccata, seedling-structure, xx. 471; vascular system of female flowers (*), xiii.

540-

— cuspidata, seedling-structure, xx. 471.

Telangium affine (* +), xviii. 164.

- — Scotti, a new species of Telangium (Calymmatotheca) showing structure (*t), xviii. 16 1.

Teleutospore of Gymnosporangium clava- riaeforme (*), xviii. 329, 344 ; of Phrag- midium violaceum (*), xviii. 327, 343.

Temnogametaceae, conjugation, &c. (*),xii. 50.

Temperate Zone, transition cf plants of, to the high mountains of Tropical Africa, xviii. 523.

Temperature, effect of on carbon assimila- tion, xvi. 591 ; influence of low, on germina- tive power of seeds, xiii. 591 ; of leaves, xvi. 259 ; relation of, with growth of Pythium ultimum, xv. 286 ; resistance of seeds to high, xvi. 590 ; suspension of life at low, xvi. 589.

Terminology in relation to morphology, xvi. 547.

Tensile strength of cell-walls, xi. 585.

Tetrasporangium and germinating tetraspore of Dictyotaceae, cytology of (*), xviii. 141.

Thallophytes, alternation of generations, xii. 57o.

Thames, Bacteria of (*), xii. 59, 287 ; xiii. 197 ; phytoplankton of, xvi. 576 ; xvii. 631.

! Thelebolus nanus, description (*),xv. 326.

• — stercoreus, description (*),xv. 326.

Thermometric movement of branches in shrubs and trees (*), xviii. 631.

Thermotropism of Myxomycete plasmodia, xi. 182.

Thiselton-Dyer, W. T. — Biographical Sketch of M. J. Berkeley (Portrait), xi. ix.

— Morphological Notes. I. (Plate XXII), xv. 423.

i hiselton-Dyer, W. T .—Id. II and III (Plate XXX), xv. 547.

— Id. IV (Plate XL), xv. 749.

— Id. V and VI. Abnormal Fruits (Plates VII and VIII), xvi. 149.

— Id. VII. Dischidia rafflesiana (Plates XIV and XV), xvi. 365.

— Id. VIII. On Polycotyledony (Plates XXIV and XXV and one text-figure), xvi. 553.

— Id. IX. A Kalanchoe Hybrid (Plates XXI-XXIII), xvii. 435.

— Id. X. A Proliferous Pinus Cone (Plate XL), xvii. 779.

— Id. XI. Protective Adaptations (Plates VII-IX), xx. 123.

— Note on the Discovery of Mycorhiza, xi. 175.

— Note on the Sugar-cane Disease of the West Indies, xiv. 609.

— On the Influence of the Temperature of Liquid Hydrogen on the Germinative Power of Seeds, xiii. 599.

Thomas, A. P. W. — An Alga-like Fern Pro- thallium, xvi. 165.

Thomas, E. N. — Double Fertilization in a Dicotyledon — Caltha palustris (Plate XXX), xiv. 527.

— On the Presence of Vermiform Nuclei in a Dicotyledon, xiv. 318.

Thompson, H. S. — On Phlomis lunarifolia, Sibth. et Smith, and some species con- fused with it, xix. 439.

Thrinax excelsa, seedling - structure, xvii. 48.

Thuja orientalis, seedling-structure, xx. 472.

T IMBERLAKE, H. G. — Starch - formation in Hydrodictyon utriculatum (Plate XXXIV), xv. 619.

Tissues, morphology of, xvii. 532.

Tmesipteris, imperfect sporangia, xv. 254.

Todea Fraseri, seedling-structure, xix. 398.

Tolypothrix, fungi parasitic on (*),xvii. 649.

Torreya, ovules of (*), xvii. 466.

Townsend, C. O. — The Correlation of Growth under the Influence of Injuries, xi. 509.

— Id., xii. 1 1 7.

Tradescantia, a disease of (*), xiv. 27 ; effect of centrifugal force on cells of staminal hairs (*), xiii. 337.

Transfusion tissue ofCycadaceae (*),xii. 211.

T ranslocation and carbon-assimilation, static diffusion of gases and liquids in relation to, xiv. 537.

Transpiration, apparatus for measurement of (*), xv. 558.

Traumatic reaction of Brachyphyllum and living Araucarineae {* f), xx. 384.

— stimulation, reaction of leaves to (*), xv. 533-

Tremella , description, xi. 286.

— stipitata, description (*), xi. 290.

40

Annals of Botany.

Trichocladium asperum, description (*), xvi. | 85*

Trichoglossum , description, xi. 240.

— hirsutum , description (*), xi. 241. Trichomanes apiifolium, structure (*), xiv.

478.

• — Bancroftii, structure (*), xiv. 477.

— ericoides, structure, xiv. 479.

— heterophyllum, structure, xiv. 478.

— Prieurii, structure (*), xiv. 474.

— pyxidiferum, structure (*), xiv. 479.

- — radicans, structure (*), xiv. 471.

- — reniforme, structure (*), xiv. 469.

— scandens, structure (*), xiv. 478.

— spicatum, structure, xiv. 477.

Trichomes, effect of centrifugal force on cells

of (*), xiii. 337, 340.

Trichosphaeria Sacchari, ascigerous stage, xvii. 383 ; macro- and micro-conidial stage, xvii. 380 ; Melanconium stage, xvii. 374.

— causing disease of Sugar-cane, xiv. 617; xvii. 374.

Trichosporium insigne, n. sp ., description (*),

xvi. 85.

Trichothecium inaequale, n. sp., description (*), xvi. 84.

Tricyrtis hirta, seedling-structure, xvii. 33. Triglochin maritimum, embryology (*), xiv. 100 ; embryo-sac (*), xiv. 99 ; endosperm (*), xiv. 102 ; flower development (*), xiv. 96; flowering stem structure (*), xiv. 89; leaf-structure (*), xiv. 90 ; rhizome-struc- ture (*),xiv. 84 ; root-structure (*), xiv. 93. Trigonocarpon olivaeforme, structure (+), xx. 109.

Trillium grandiflorum, seedling -structure,

xvii. 34.

Tritonia Uvaria, raphides (*), xii. 150. Tropical insolation, effects of, xi. 439, 585. Tropistic movements of plants, anti-ferment reaction in,xix. 75.

Trow, A. H. — Observations on the Biology and Cytology of a new variety of Achlya americana (Plates VII I-X), xiii. 131.

— Observations on the Biology and Cytology of Pythium ultimum, n. sp. (Plates XV and XVI), xv. 269.

■ — On Fertilization in the Saprolegnieae (Plates XXX1V-XXXVI), xviii. 541. Tryptophane in plants, xvii. 256.

— in proteolysis, xvi. 1.

Tsuga canadensis, development of archego- nium and fertilization (*), xiv. 583.

— diversifolia, seedling-structure, xx. 473. Tubercularieae, coprophilous, xvi. 87.

Tubers of Dioscorea sativa, origin, develop- ment, and morphological nature of the aerial (*), xv. 491.

Tulipapraecox, seedling-structure (*),xvii. 2 5. Tulip droppers, morphology and structure (*), xx. 431-

Tyrosinase, occurrence of in Polyporus squamosus, xx. 51.

U.

Ulvaceae-Chaetophoraceae, evolution and polymorphism, xi. 112.

Umbelliferae, insects and flowers, xvii. 338. Uredineae, aecidium, fertilization in (*), xviii. 349; aecidium - morphology, xviii. 353; alternations of generations (*), xviii. 323 ; bridging species, xix. 42; conjugate division of nuclei (*), xviii. 345 ; cytology (*), xviii. 323 ; Eriksson’s Formae speciales, xix. 16 ; fertilization (*), xviii. 323, 349, 352; ger- mination of uredospores, xix. 1 2 ; heteroe- cism,xix. 9 ; infection, xix. 28; life-history, xix. 10; nuclear division (*), xviii. 356; nuclear fusion in teleutospore (*), xviii. 349; phylogeny, xix. 44 ; relationships, xviii. 362 ; sexuality (*), xiii. 585 ; xix. 11 ; xx. 35; specialized parasitism, xix. 14; sper- matia, nature of (*), xviii. 346 ; spore- distribution, xix. 1 1 ; starvation pheno- mena, xix. 39; teleutospores, nuclear fusion in (*), xviii. 349; uredospore, germination, xix. 1 2 ; vegetative life, xix. 5 5. Uredospores, germination, xix. 12.

— of Puccinia dispersa, germination, xvi. 261.

Uromyces Ficariae, sexuality (*), xx. 43.

— Poae, sexuality (*), xx. 37.

— Scillarum, sexuality (*), xx. 43.

Urophl yetis, life-history (*), xi. 87.

— Kriegeriana, life-history and parasitism (*), xi. 89.

— leproides, life-history and parasitism (*),

xi. 91.

— pulposa, life-history and parasitism (*), xi.

93-

Ustilagineae, sexuality, xiii. 584.

V.

Vacuoles in Saccharomyces (*), xii. 526. Vacuum, effect of on nuclear division, xix.

527.

Vallisneria, effect of centrifugal force on cell, xiii. 345.

Variation in flowers of species of Primula

(*), xvi- 317.

Variations of Calypso bulbosa, spontaneous, xiii. 25.

Vascular system of Matonia pectinata (*), xix. 475.

of stem of certain Dicotyledons, nature

of, xvi. 599.

Vaucheria, effect of centrifugal force on cell, xiii. 348.

Veratrum nigrum, seedling-structure, xvii. 33. Verpa, description, xi. 264.

— ferruginea, description, xi. 276. Verticillium lateritium, description, xvi. 82. Vibrissea, description, xi. 2 59.

— circinans, description (*), xi. 261.

— lutea, description (*), xi. 262.

— Margarita , description (*), xi. 260.

Index to Vols. XI— XX. 41

Vibrissea ochroleuca, description (*), xi. 262.

— rimarum, description, xi. 263.

— truncorum, description (*), xi. 260.

var. albipes , description (*), xi. 260.

— vermicularis, description, xi. 263.

Vicia Faba, proteolytic action in germinating seeds of, xvi. 1 2 ; xx. 1 1 5.

- — proteases of seeds of, xx. 1 15, 118.

Vines, S. H. — On Leptomin, xv. 181.

— Proteolytic Enzymes in Plants, I. xvii.

237.

— Id. II. xvii. 597.

— ■ The Proteolytic Enzymes of Nepenthes, I. xi. 563.

— Id II. xii. 545.

— ^ Id. III. xv. 563.

— The Proteases of Plants, I. xviii. 289.

— Id. IT. xix. 149.

— Id. III. xix. 17 1.

— Id. IV. xx. 1 1 3.

— Tryptophane in Proteolysis, xvi. 1.

Vitality of seeds, estimation of by an elec- trical method, xv. 427.

Volvocineae, evolution and polymorphism, xi. 103.

W.

Wager, H. — On the Fertilization of Perono- spora parasitica (Plate XVI), xiv. 263.

— The Nucleolus and Nuclear Division in the Root-apex of Phaseolus (Plate V), xviii. 29.

— The Nucleus of the Yeast Plant (Plates XXIX and XXX), xii. 499.

— The Sexuality of the Fungi, xiii. 575.

Wallace, W. — On the Stem-structure

of Actinostemma biglandulosa (Plate XXXIV), xiv. 639.

Waller, A. D. — An Attempt to estimate the Vitality of Seeds by an Electrical Method, xv. 427.

Watson, W. — Germination of Seeds of Bertholletia excelsa (Plates IV and V), xv. 99.

Weiss, F. E. — A Mycorhiza from the Lower Coal Measures (Plates XVIII and XIX and one text-figure) (+), xviii. 255.

— The Vascular Branches of Stigmarian Rootlets (Plate XXVI) (t), xvi. 559.

— The Vascular Supply of Stigmarian Rootlets (one text-figure) (f), xviii. 180.

West, W., and West, G. S. — Observations on the Conjugatae (Plates IV and V), xii. 2 9.

Wigglesworth, G. — The Cotyledons of Ginkgo biloba and Cycas revoluta (one text-figure), xvii. 789.

— The Papillae in the Epidermoidal Layer of the Calamitean Root (three text-figures) (t), xviii. 645.

Wild, G., and Lomax, J. — A new Cardio- carpon-bearing Strobilus (+), xiv. 160.

Williams, J. Lloyd. — New Fucus Hybrids, xiii. 187.

Williams, J. Lloyd.— Reproduction in Dictyota dichotoma, xii. 559.

— Studies in the Dictyotaceae, I. The Cytology of the Tetrasporangium and the Germinating Tetraspore (Plates IX and X), xviii. 1 4 1.

— Id. II. The Cytology of the Gameto- phyte Generation (Plates XII-XIV), xviii. 183.

— Id. III. The Periodicity of the Sexual Cells in Dictyota dichotoma (six text- figures), xix. 531.

— The Antherozoids of Dictyota and Taonia (Plate XXV), xi. 545.

Willis, J. C. — On the Dorsiventrality of the Podostemaceae, with reference to current views on Evolution, xvi. 593.

— and Burkill, I. H.— Flowers and Insects in Great Britain. Part II. Observations on the Natural Orders Dipsaceae, Plum- baginaceae, Compositae, Umbelliferae, and Cornaceae, made in the Clova Mountains, xvii. 313.

Id. Part III. Observations on the

most Specialized Flowers of the Clova Mountains, xvii. 539.

Willow, change in sex of, xii. 557.

AVind, dispersal of seeds by, xix. 351.

Wolfe, J. J. — Cytological Studies in Nemalion (Plates XL and XLI and one text-figure), xviii. 607.

Wood - destroying Fungus, Penicillium as a, xii. 565.

Worsdell, W. C. — Observations on the Vascular System of the Female ‘ Flowers ’ of Coniferae (Plate XXVII), xiii. 527.

— The Affinities of the Mesozoic Fossil, Bennettites Gibsonianus (t), xiv. 717.

— The Anatomical Structure of Bowenia spectabilis, xiv. 159.

— The Morphology of the ‘Flowers’ of Cephalotaxus (Plate XXXV), xv. 637.

— The Morphology of Sporangial Integu- ments, xvi. 596.

— The Nature of the Vascular System of the Stem in certain Dicotyledonous Orders, xvi. 599.

— The Structure and Morphology of the ‘ Ovule.5 An Historical Sketch (twenty- seven text-figures), xviii. 57.

-- The Structure and Origin of the Cyca- daceae (seventeen text-figures), xx. 129.

— The Structure of the Female ( Flower’ in Coniferae. An Historical Study (seven text-figures), xiv. 39.

— The Vascular Structure of the ‘ Flowers ’ of the Gnetaceae (one text-figure), xv. 766.

— The Vascular Structure of the Ovule of Cephalotaxus, xiv. 317.

— The Vascular Structure of the Sporo- phylls of the Cycadaceae (Plates XATI and XVIII), xii. 203.

E

42

Annals of Botany.

Wounded plants, evolution of heat by, xi. 29.

Wounding, effect of previous, on flowof latex, xiv. 204.

Wound reactions of Brachyphyllum (* +), xx. 383.

Wright, H. — Foliar periodicity in Ceylon, xvi. 594.

X.

Xylem of woody stems, occurrence of cellu- lose in (*), xviii. 121.

Y.

Yapp, R. H. — Fruit-dispersal in Adeno- stemma viscosum. A Biological Study (Plate XXIII), xx. 311.

— Two Malayan ‘ Myrmecophilous ’ Ferns, Polypodium (Lecanopteris) carnosum and Polypodium sinuosum (Plates X-XII), xvi. 185.

Yeast, alcoholic enzyme, xi. 555, xii. 491 ; autolysis, xviii. 294 ; peptolysis, xviii. 299 ; peptonization, xviii. 301 ; protease, nature of, xviii. 314; proteolytic action, xvi. 13.

Yeast-cell, structure, xii. 515, 567.

Yeast-plant, budding (*), xii. 530; glycogen vacuoles (*), xii. 527; nuclear apparatus (*), xii. 516 ; nucleus (*), xii. 499 ; spore- formation (*), xii. 532 ; structure (*), xii. 515; vacuole, origin (*), xii. 526. See also Saccharomyces.

Yucca aloifolia, seedling-structure, xvii. 35, 39*

Yucca arborescens, seedling-structure, xvii. 35-

— gloriosa, seedling-structure, xvii. 36, 39.

Z.

Zamia Fischeri, structure of sporophyll, xii. 230.

— furfuracea, structure of sporophyll, xii.

229.

— latifolia, structure of sporophyll, xii. 225.

— Leiboldii, structure of sporophyll (*), xii.

230.

— Lindeni, structure of sporophyll (*), xii. 227.

— Loddigesii, structure of peduncle (*), xi. 41 1 ; of sporophyll (*), xii. 228.

— muricata, structure of sporophyll, xii. 227.

— pumila, structure of sporophyll, xii. 226.

— Skinneri, structure of sporophyll, xii. 226. Zea Mais, embryo, morphology (*), xix. 1 15 ;

enzyme-secreting cells in seedling (*),. xviii. 267; proteases of seeds* xx. 116, 1 1 8 ; scutellum, structure (*),xix. 117. Zoospore-formation in Oedogonium, abnor- mal, xvi. 481.

— germination in Aglaonema (*), xii. 87 ; in Oedogonium (*), xvi. 412.

Zygadenus elegans, seedling-structure (*), xvii. 32.

Zygnemaceae, structure, &c. (*}, xii. 37, 40.. Zymogen in glands of Nepenthes, xii. 550.

ANNALS OF BOTANY, Vol. XXI.

No. LXXXI, January, 1907, contains the following Papers and Notes ; —

Lawson, Anstruther A.— -The Gametophytes, Fertilization and Embryo of Cephalotaxus drupacea. With Plates I-IV.

Gibbs, L. S. — Notes on the Development and Structure of the Seed in the Alsinoideae. With Plates V and VI and four Figures in the Text.

Bergtheil, C., and Day, D. L.— On the Cause of ‘ Hardness ’ in the Seeds of Indigofera arrecta. With Plate VII.

McNicol, Mary. — The Bulbils and Pro-embryo of Lamprothamnus alope- curoides. With Plate VIII.

Hemsley, W. Potting.— Two new Triuridaceae, with some Remarks on the Genus Sciaphila, Blume. With Plates IX and X.

Brown, Adrian J.— On the Existence of a Semi-permeable Membrane en- closing the Seeds of some of the Gramineae.

Scott, D. H., and Maslen, A. J.— The Structure of the Palaeozoic Seeds, Trigonocarpus Parkinsoni, Brongniart, and Trigonocarpus Oliveri, sp. nov. Part I. With Plates XI-XIV.

NOTES.

Ewart, A. J. — The Delayed Dehiscence of Callistemon rigida, R. Br.

Ellis, David. — On the Constancy of Cilia-insertion in Bacteriaceae.

No. LXXXII, April, 1907, contains the following Papers and Notes : —

Hill, A. W. — A Revision of the Geophilous Species of Peperomia, with some additional Notes on their Morphology and Seedling Structure. With Plate XV.

Farmer, J. Bretland, and Digby, L.— Studies in Apospory and Apogamy in Ferns. With Plates XVI-XX.

Lang, W. H.— On the Sporogonium of Notothylas. With Plate XXI.

Wigglesworth, Grace. — The Young Sporophytes of Lycopodium com- planatum and Lycopodium clavatum. With Plate XXII and four Diagrams in the Text.

Fritsch, F. E.— The Subaerial and Freshwater Algal Flora of the Tropics. A Phytogeographical and Ecological Study.

Stopes, M. C.— A Note on Wounded Calamites. With Plate XXIII and four Diagrams in the Text.

Lawson, A. A. — The Gametophytes and Embryo of the Cupressineae, with special reference to Libocedrus decurrens. With Plates XXIV-XXVI.

NOTES.

Oliver, F. W. — Note on the Palaeozoic Seeds, Trigonocarpus and Polylo- phospermum.

Beer, Rudolf. — The Supernumerary Pollen-grains of Fuchsia.

Fraser, H. C. I. — Contributions to the Cytology of Humaria rutilans, Fr.

No. LXXXIII, July, 1907, contains the following Papers and Note : —

Mottier, David M. — The Development of the Heterotypic Chromosomes . in Pollen Mother-cells. With Plates XXVII and XXVIII.

Fraser, H. C. I. — On the Sexuality and Development of the Ascocarp in Lachnea stercorea, Pers. With Plates XXIX and XXX.

Clark, A. M. — Secondary Thickening in Kendrickia Walkeri, Hook f. With Plate XXXI.

Hickling, George. — The Anatomy of Palaeostachya vera. With Plates XXXII and XXXIII, and four Figures in the Text.

Bayliss, Jessie S. — On the Galvanotropism of Roots. With four Figures in the Text and two Curves.

Priestly, J. H., and Irving, Annie A. — The Structure of the Chloroplast considered in Relation to its Function. With two Figures in the Text.

Ridley, H. N.— Branching in Palms. With Plates XXXIV-XXXIX.

Fritsch, F. E., and Rich, Florence — Studies on the Occurrence and Reproduction of British Freshwater Algae in Nature. I. Preliminary Observations on Spirogyra. With eleven Figures in the Text.

NOTE.

Scott, Daisy G. — On the Distribution of Chlorophyll in the Young Shoots of Woody Plants.

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INDEX TO ANNALS OF BOTANY

VOLS. XXI-XXX (1907-1916)

(*) Indicates an illustration.

A.

Abies, spp., structure (*), 23, 191.

— excelsa, insect visitors, 22, 648.

Abietineae, anatomy of Jurassic woods (*),

27, 541 ; seedling-structure (*), 22, 706.

Abronia, spp., seedling-structure (*), 26, 189.

Absorption of acids by plant tissue (*), 30, 223.

water by green parts of halophytes, 25,

496 ; by succulents, superficial, 26, 420.

Acacia, diameter and length of vessels, 24, 94.

Acanthosicyos horridus, structure (*), 29,

584.

Accessory food substances (*), 28, 531.

Acer negundo, mitosis in pollen mother-cells

(*), 28, ..5.

- — pseudoplatanus, anatomy of leaf-fail, 25, 74 ; insect visitors, 22, 618.

Achillea pyrenaica, seedling-structure, 28, 316.

Acid reaction in plants, 29, 76.

1 Acidity of shagnum, its relation to chalk and mineral salts, 29, 65.

Acids, absorption of (*), 30, 223.

Acquired characters, inheritance, 25, 741.

Acrophorus, phylogenic consideration, 26, 304.

Actinostrobus pyramidalis, female cone and ovule (*), 27, 324 ; female gametophyte (*), 27, 326 ; fertilization and embryology (*), 27, 335 ; male gametophyte (*), 27, 332; microsporangium and microspores (*), 27, 324; seedling-structure (*), 22, 703.

Acton, E. : Botrydina vulgaris, Brebisson, a Primitive Lichen (*), 23, 580.

— Goccomyxa subellipsoidea, a New Mem- ber of the Palmellaceae (*), 23, 573.

— Observations on the Cytology of the Chroococcaceae (*), 28, 433.

— Studies on Nuclear Division in Desmids. I. Hyalotheca dissiliens, (Sue.) Breb. (*), 30, 379-

Adenocline, description of genus and species, 27, 402 ; distribution, 27, 409 ; review of, 27, 390.

I Adenoclineae of South Africa, 27, 371.

Adkinson, J. : Some Features of the Ana- tomy of the Vitaceae (*), 27, 133.

Adonis annua, seedling-anatomy, 28, 707. Aerating system of Vicia Faba (*),29, 627. Aerotropic growths of Bacillus megatherium,

26, 949.

Aethionemapersicum, seedling-anatomy, 28,

717.

Affourtit, M. F. A., and La Riviere, H. C. C. : On the Ribbing of the Seeds of Ginkgo (*), 29, 591.

Agapanthus umbellatus var. albiflorus, pol- lination and respiratory activity, 21, 498. Agaricaceae, development of carpophore (*), 25, 683.

Agathis australis, morphology of strobili (*),

27, r.

Ailanthus glandulosa, anatomy of leaf-fall, 25, 95.

Aizoaceae, seedling-structure (*), 26, 187. Akebia lobata, vascular anatomy, 22, 674. Alaria esculenta, histology, 22, 320. Alchemilla, spp., insect visitors, 22, 639. Aleurone layer of Hordeum, amyloclastic secretory power, 25, 817, 1147.

secretions, starch liquefying and sac- charifying properties, 25, 1154.

Algae, occurrence and reproduction of British freshwater (*), 21, 423.

Algal floraof tropics, subaerial and freshwater, 21, 235 ; systematic composition of sub- aerial, 21, 237 ; systematic composition of submerged aquatic, 21, 243.

Allelomorphs, pairing of, 23, 543.

Allium Cepa, anaphase (*), 28, 275 ; meta- phase (*), 28, 275 ; mitosis in gametophyte (*), 28, 277 ; prophase (*), 28, 271 ; telo- phase (*), 28, 276.

Allomyces, a new aquatic fungus (*), 25, 1023 ; description, 25, 1027.

— arbuscula, n. sp., description (*), 25, 1027.

Alnus, morphology of root tubercles (*), 26, 119.

— spp., seedling-structure (*), 30, 587. Alopecurus pratensis, insect visitors, 22,

648.

Alpine plants, transpiration, 26, 438.

Alpinia calcarata, seedling-anatomy, 29, 215. Alsinoideae, chalaza (*), 21, 42 ; embryo sac (*), 21, 31, 44, 46 ; endosperm (*), 21, 34 ; germination (*), 21, 42 ; integuments (*), 21, 40 ; nucellus (*), 21, 36 ; perisperm

B

2

Annals of Botany .

(*), 21, 37 ; polar nuclei (*), 21, 32 ; post- fertilization development (*), 21, 32 ; seed coat (*), 21, 46 ; seed development and structure (*), 21, 25 ; suspensor (*), 21, 39.

Alternation of generations, 21, 193.

Alyssum, spp., seedling-anatomy, 28, 715.

Amarantaceae, seedling-structure (*), 26, 181.

Amaranthus, spp., seedling-structure, 26, 181.

Amberboa muricata, seedling-structure, 28, 320.

Amelanchier spicata, abnormal flowers (*) 26, 948.

Amentiferae, seedling-anatomy, (*), 30, 575.

American Salicales, reduction and reversion in North (*), 26, 165.

Amomum angustifolium, seedling-anatomy (*), 29, 212.

Amyelon radicans, lateral roots and myco- rhiza (*), 23, 603.

Amylase, content of scutellum of Hordeum, 25, 1167; content of, in Tropaeolum, 25, 1197 ; influence of embryo on augmenta- tion of, 25, 1175 ; of ungerminated barley, inactivity of, 25, 1176.

— secretion, influence of carbohydrates on, 25, 1162.

Amylocarpus, description, 23, 262.

— encephaloides, description (*), 23, 262.

Amyloclastic secretory capacities of embryo

and aleurone layer of Hordeum, 25, 799,

1147.

Anabaena Cycadeae, gonidia formation (*), 25, 376; heterocysts (*), 25, 373; life- history (*), 25, 369 ; spore formation and germination (*), 25, 375 ; vegetative division (*), 25, 373; vegetative structure, (*), 25, 370.

Anacyclus Pyrethrum, seedling-structure, 28, 316.

Anaesthetics, action of on endosperm, 25,

11 5°.

Anastatica hierochuntina, seedling-anatomy, 28, 715.

Anchusa sempervirens, insect visitors, 22, 612.

Androgynous receptacles in Marchantia (*), 24, 349*

Aneimia phyllitidis, development of sporangia and spores (*), 25, 1059.

Anemone japonica, vascular anatomy, 22, 657.

var. alba, pollination and respiratory

activity, 21, 496.

— nemorosa, insect visitors, 22, 615 ; varia- tion in (*), 30, 525.

— spp., seedling-anatomy (*), 28, 702.

Angiosperms, consideration of ovule, 23,

633 ; evolution (*), 22, 4S9 ; monophy- letic origin, 22, 123 ; origin of herbaceous type (*), 25, 215; phylogeny (*), 28, 547 ; reconstruction of a race of primitive

(*), 22, 1 2 1 ; seedling-anatomy (*), 22, 161.

Angiosperms, origin and dispersal of her- baceous (*), 28, 547 ; anatomical evidence (*), 28, 5 50 ; factors in the development of herbs, 28, 593 ; palaeo-botanical evidence, 28, 549 ; phyto-geographic evidence, 28, 565 ; phytological evidence, 28, 562.

— reconstruction of the primitive, 22, 123, 136; cotyledons, 22, 145; embryology, 22, 147, 159; floral structure, 22, 138; phylogenetic schemes, 22, 173 ; seedling- anatomy (*J, 22, 161 ; stem-anatomy, 22, 141.

— and Gnetales, relationship (*), 22, 489 ;

amphisporangiate condition, 22, 497 ;

female gametophyte, 22, 505 ; historical, 22, 492 ; megasporangium, 22, 504 ; microsporophylls and microsporangia (*), 22, 501 ; morphology, 22, 496; perianth (*), 22, 498 ; strobili, 22, 500.

Annual rings and medullary rays of Quercus, evolution (*), 25, 983.

Anona, spp., seedling-anatomy, 28, 711. Anonaceae, vascular anatomy (*), 22, 670. Antherozoid, discharge of, in Fossombronia and Haplomitrium (*), 23, 159. Anthocerotaceae, Megaceros, a new genus of

(*), 21, 469.

— of Java, studies on some (*), 21, 467;

22, 91, 330 ; affinities, 22, 100. Antirrhinum majus, pollination and respira- tory activity, 21, 495.

— Orontium, seedling-anatomy, 26, 739. Ants and epiphytes, 24, 466.

— and plants, symbiosis (*), 24, 457. Aphotometric leaves (*),23, 471. Apogamous types of plants, classification,

21, 19 1.

Apogamy and aposporyin ferns (*), 21, 161.

— in Pteris droogmantiana, 24, 487 ; in Trichomanes Kaulfussii (*), 24, 233.

Aposporous types of plants, classification, 21, 191.

Apospory and apogamy in ferns (*), 21, 16 1.

— in Trichomanes Kaulfussii (*), 24, 233. Aquatic plants, leaf characters, 25, 724, 735. Aqueous tissue of succulents, 26, 420. Aquilegia, spp., seedling-anatomy, 28, 707. Arabis caucasica, insect visitors, 22, 604.

- — rosea, seedling-anatomy, 28, 717.

Arable land, weeds of, 25, 155; 26, 95; 27, 141 ; 30, 162.

Araucaria Bidwillii, seedling-structure (*),

23, 321.

— brasiliensis, seedling-structure (*), 23, 216.

— Cunninghamii, seedling-structure (*), 23, 212.

Araucarieae, seedling-structure (*), 23, 212 ;

structure of wood of Jurassic (*), 27, 535. Araucarioxylon from New Zealand, a new

n 28, 341.

Index to Vols. XXI-XXX.

3

Araucarioxylon, wood anatomy (*), 27, 540.

— Lindleii, description (*), 30, 117.

— Novae Zeelandii, n. sp., comparisons, 28, 347 ; description (*), 28, 341 ; diagnosis, 28, 348.

Arber, A.: A Note on T rigonocarpus (*), 28, 195.

— On the Structure of the Androecium of Parnassia and its bearing on the Affinities of the Genus (*), 27, 491.

— On the Structure of the Palaeozoic Seed Mitrospermum compressum (Will.) (*)> 24, 491.

— The Anatomy of the Stamens in certain Indian Species of Parnassia (*), 29, 159.

— see Beer, R.

— see Sargant, E.

Arber, E. A. N. : A Revision of the Seed Impressions of the British Coal Measures (*), 28, 81.

— On a New Pteridosperm possessing Sphe- nopteris Type of Foliage (*), 22, 57.

— and Parkin, J. : Studies on the Evolution of the Angiosperms. The Relationship of the Angiosperms to the Gnetales (*), 22, 489.

— and Thomas, H. M. : A Note on the Structure of the Cortex of Sigillaria mamillaris, Brong., 23, 513.

Archytaea alternifolia, leaf-buds (*), 25, 1015.

Arctium majus, seedling-structure, 28, 319.

Arctotis calendacea, seedling-structure, 28, 3i9.

Areca Catechu, branching (*), 21, 418.

Arenaria sedoides, insect visitors. 22, 643.

Aristea dichotoma, chorisis (*), 26, 947.

Armillaria mucida, biology (*), 23, 515; description (*), 23, 516 ; disorganization of tissues of host (*), 23, 529 ; develop- ment of fructification (*),23, 503 ; germi- nation (*), 23, 520 ; inoculations, 23, 526 ; life-history, 23, 517 ; parasitism, 23, 528 ; remedial and protective measures, 23, 531 ; sporophores (*), 23, 522. Armstrong, H. E., and Armstrong, E. F. : The Function of Hormones in regulating Metabolism, 25, 507.

Arsenic, action of compounds of, on growth (*), 28, 288.

Artabotrys odoratissimus, vascular anatomy,

22, 670.

Artemisia, spp ., seedling-structure, 28, 317.

Asarum europaeum, mycorhiza (*), 26, 769.

Ascent of sap, rate of, in Eucalyptus trees, 24, 91; diameter and length of vessels, 24, 94 ; resistance to flow, 24, 98.

Ascobolus furfuraceus, cytology of ascus (*),

23, 539.

Ascocarp, development in Lachnea creta (*), 27, 553 ; of Ascophanus carneus, sexuality and development (*), 23, 399 ; of Lachnea stercorea, sexuality and de- velopment (*), 21, 349.

Ascomycetes, ascus formation, 22, 43 ; con- jugate nuclei (*), 30, 415 ; cytology (*), 22, 465 ; new genus of (*), 23, 335 ; sexual and asexual fusions, 22, 473 ; sexu- ality, 22, 41, 471 ; spore-formation, 22, 474-

Ascophanus carneus, apothecium develop- ment (*), 23, 403 ; ascogenous hyphae (*), 23,408 ; ascus (*),23, 410; chlamydo- spores (*), 23, 402 ; cytology (*), 23, 404; fertilization, 23, 406; germination of spores, 23, 400 ; mycelium (*), 23, 402.

Ascus, cytology (*) 22, 469 ; 23, 537 ; of Ascobolus furfuraceus (*j, 23, 539 ;

of Humaria granulata (*), 23, 538 ; of Lachnea stercorea (*), 23, 541 ; pairing of allelomorphs, 23, 543 ; spore-formation (*), 23, 545-

Asplenium, phylogeny (*), 28, 41 1.

Assimilation, effect of chloroform on (*), 25, 1091.

Athyrium Filix foemina vars., apogamy and apospory (*), 21, 163, 167, 171.

Atrichum undulatum, spermatogenesis (*), "25, 433.

Atriplex, spp., seedling-structure, 26, 183.

Atropa Belladonna, seedling-anatomy (*), 26, 734-

Aubretia Antilibani, seedling-anatomy, 28, 7i7.

Avena sativa, seedling-anatomy (*), 29, 170.

Axillary strands of Trichomanes javanicum vestigial (*), 25, 1037.

Azobacter, conditions influencing fixation of nitrogen and growth of organism, 26, 871.

B.

Baccharis halimifolia, anatomy of leaf-fall,

25, 78.

Backmann, F. M. : A New T ype of Spermo- gonium and Fertilization in Collema (*),

26, 747.

Bacillus megatherium, aerotropic growths, 26, 949.

— Tubifex, n. sp., life-history (*), 26, 133.

Bacteria of the genus Hillhousia, the lime

sulphur (*), 27, 83.

Bacteriaceae, cilia insertion, 21, 137.

Bacterial disease of potato leaves (*), 26, 133-

Bacterized peat (*), 28, 531.

Baden, M. L. : Observations on the Ger- mination of the Spores of Coprinus ster- quilinus, Fr. (*), 29, 135.

Baeria coronaria, seedling-structure, 28,

315.

Baieropsis, systematic position (*), 25, 194.

Bailey, I. W. : A Cretaceous Pityoxylon with Marginal Tracheides (*), 25, 315.

— The Evolutionary History of the Foliar Ray in the Wood of Dicotyledons : and its Phylogenetic Significance (*), 26, 647.

— The Relation of the Leaf-trace to the

2

4

Annals of Botany.

Formation of Compound Rays in the Lower Dicotyledons (*), 25, 225.

Baker, S. M. : Note on a New Treatment for Silver-leaf Disease in Fruit Trees, 22, 172.

— Quantitative Experiments on the Effect of Formaldehyde on Living Plants (*), 27, 4ir.

Ballantine, A. J. : A Preliminary Note on the Embryo-Sac of Protea Lepidocarpon,

23, 16 r.

Balls, W. L. : Apparent Fallacies of Electrical Response in Cotton Plants (*), 27, 103.

— Temperature and Growth (*), 22, 557.

— The Mechanism of Nuclear Division (*),

24, 653.

Balsamia, description of species (*), 23, 252.

Banana, elephantiasis caused by Ustilaginoi- della oedipigera (*), 25, 363.

Bancroft, C. K. : Researches on the Life- history of Parasitic Fungi (*), 24, 359.

Bancroft, N. : A Contribution to our Knowledge of Rachiopteris cylindrica, Will. (*),29, 531.

— Note on Vegetative Reproduction in some Indian Selaginellas (*), 28, 685.

— On the Xylem Elements of the Pterido- phyta (*), 25, 745.

Barbarea vulgaris, insect visitors, 22, 619; seedling-anatomy, 28, 718.

Barley, development of grain (*), 26, 903 ; influence of copper sulphate and man- ganese sulphate on growth (*), 24, 571.

— grain, entry of starch, 26, 922 ; nuclear disorganization, 26, 924; nutritive pro- cesses (*), 26, 903.

Barratt, K. : A Note on an Abnormality in the Stem of Helianthus annuus (*), 30, 481.

— The Origin of the Endodermis in the Stem of Hippuris (*), 30, 91.

Barrett, J. T. : Development and Sexuality of some Species of Olpidiopsis, (Cornu) Fischer (*), 26, 209.

Bars of Sanio in Coniferales, distribution (*), 24, 1 19.

Bartlett, A. W. : Note on the Occurrence of an Abnormal Bisporangiate Strobilus of Larix europaea, D.C. (*), 27, 575.

Bast, structure of fibres (*), 22, 265 ; struc- ture of parenchyma cells (*), 22, 264.

Bayliss, J. S. : On the Galvanotropism of Roots (*), 21, 387.

Bayliss-Elliott, J. S., and Grove, W. B. : Roesleria pallida, Sacc. (*), 30, 407.

Beehive fungus, Pericystis alvei (*), 26, 795.

Beer, R. : Notes on the Development of the Carpophore of some Agaricaceae (*), 25, 683.

— On Elaioplasts (*), 23, 63.

Beer, R. : Studies in Spore Development (*), 25, 199.

— Id. II. On the Structure and Division of the Nuclei in the Compositae (*), 26, 705.

— Id. III. The Premeiotic and Meiotic Nuclear Divisions of Equisetum arvense (*), 27, 643.

— - The Supernumerary Pollen-grains of Fuchsia, 21, 305.

— and Arber, A. : On the Occurrence of Binucleate and Multinucleate Cells in j Growing Tissues, 29, 597.

Begonia, a bisexual gymnospermous (*), 26,

1 123.

— semperflorens, pollination and respiratory activity, 21, 492.

Benson, M. : Cordaites Felicis, sp. no-v., a Cordaitean Leaf from the Lower Coal Measures of England (*), 26, 201.

— New Observations on Botryopteris anti- qua, Kidston (*), 25, 1045.

— Root Parasitism in Exocarpus (with Com- parative Notes on the Haustoria of Thesium) (*), 24, 667.

— and Welsford, E. J. : The Morphology of the Ovule and F emale Flower of Juglans regia and a few Allied Genera (*), 23, 623. 1

Bensonites fusiformis, n. sp., description (*), 22, 683*

Bentley, B. H. : An Arrangement for using the Blades of Safety Razors in the Micro- tome (*), 25, 273.

Berberidaceae, vascular anatomy (*), 22, 673.

Berberidopsis corallina, vascular anatomy (*), 22, 674.

Berberis, spp., seedling-anatomy (*), 28, 708.

— aquifolium, insect visitors, 22, 618 ; vas- cular anatomy, 22, 674.

Bergtheil, C., and Day, D. L. : On the Cause of 1 Hardness * in the Seeds of Indi- I gofera arrecta (*), 21, 57.

Berridge, E. M. : Fertilization in Ephedra altissima (*), 23, 509.

— Note on the Mesarch Structure of certain Vascular Bundles in the Cotyledons of | some Scitamineae (*), 24, 485.

— The Structure of the Female Strobilus | in Gnetum Gnemon (*), 26, 987.

— The Structure of the Flower of Fagaceae, and its Bearing on the Affinities of the Group (*), 28, 509.

— see Sykes, M. G.

Berry, E. W. : A Lower Cretaceous Species of Schizaeaceae from Eastern North America (*), 25, 193.

Beta, spp., seedling-structure, 26, 183.

Betts, A. D. : A Beehive Fungus, Peri- cystis alvei, gen. et sp. nov. (*), 26, 795.

Betula, spp., seedling-structure, 30, 589.

— alba, insect visitors, 22, 648.

— verrucosa, anatomy of leaf-fail (*), 25, 62.

Bidens pilosa, seedling-structure (*), 28,

313-

Index to Vols.

Bignoniaceae, seedling-anatomy (*), 26, 740.

Binucleate cells in growing tissue, 29, 597.

Black, C. A. : The Morphology of Riccia Frostii, Aust. (*), 27, 511.

Blackledge, L. M. : Variations in the NaCl Content of Non-halophytes, 27, 168.

Blackman, V. H., and Paine, S. G. : A Re- cording Transpirometer (*), 28, 109.

Blackman, V. H., and Welsford, E. J. : Fertilization in Lilium (*), 27, hi.

— Studies in the Physiology of Parasitism. II. Infection by Botrytis cinerea (*), 30,

389.

— ■ The Development of the Perithecium of Polystigma rubrum, D.C. (*), 26, 761.

Blackwell, E. M. : Preliminary Note on Occurrence of Stomata in Hypogeal Coty- ledons, 28, 545.

Blasia pusilla, spermatogenesis (*), 27, 93.

Blechnum, description (*), 28, 370; phylo- geny (*), 28, 371, 415 ; sorus (*), 28, 371, 405.

Blepharoplast of Derbesia (*), 22, 6.

Bliss, M. C. : Contribution to the Life- history of Viola (*), 26, 155.

Blomfield, J. E., and Schwartz, E. J. : Some Observations on the Tumours on Veronica chamaedrys caused by Soro- sphaera Veronicae (*), 24, 35.

Bocconia japonica, seedling-structure, 28,

719-

Bonnier and Mangin’s apparatus for air analysis, on (*), 27, 565.

Boodle, L. A. : Abnormal Phyllotaxy in the Ash, 29, 307.

— On the Occurrence of Different Types of Hair in the Wallflower (*), 22, 714.

— On the Production of Dwarf Male Prothalli in Sporangia of Todea (*), 22, 231.

— On the Trifoliate and other Leaves of the Gorse (Ulex europaeus, L.), 28, 527.

— and Hiley, W. E. : On the Vascular Structure of some Species of Gleichenia (*), 23, 419.

Boron, action of compounds of, on growth of plants (*), 28, 293.

Bose, J. C. : On Diurnal Variation of Moto- excitability in Mimosa (*), 27, 759.

Bothrodendron, branching and branch shed- ding (*), 29, 223; description of new specimens (*), 29, 226.

— minutifolium, description (*), 29, 226; relationship with B. punctatum, 29, 229.

— punctatum and minutifolium, relationship, 29, 229.

Botrychium Lunaria, axillary buds (*), 27, 225 ; external features, 27, 203 ; rhizome, branching of (*), 27, 225 ; rhizome, vascu- lar anatomy (*), 27, 217 ; stelar anatomy (*), 27, 205.

Botrydina vulgaris, cultures, 23, 580 ; en- velope (*),23, 581 ; multiplication (*),23,

XXI-XXX. 5

583 ; origin and nature (*), 23, 583 ; structure (*), 23, 582.

Botryopteris, affinities of genus, 25, 1053.

— antiqua, branching of diarch petiolar bundle (*), 25, 1048 ; general morphology and range of variation (*), 25, 1046 ; leal- trace and petiolar bundle (*), 25, 1047; monarch petiolar bundle and aphlebiae (*), 25, 1048; node and internode (*), 25, 1047 5 pseudo-secondary thickening (*), 25, 1052; root-bearing zones of stem-stele (*), 25, 1051; sporangia attributed to (*),24, 819.

Botrytis cinerea, action of, 29, 313, 328; biology (*), 22, 479 ; chemistry of extract, 29, 338 ; infection by (*), 30, 389 ; lethal principle of extract, 29, 345 ; physical relationships of extract, 29, 335 ; prepara- tion of extract, 29, 3 1 8.

Bottomley, W. B. : The Root-nodules of Ceanothus americanus (*), 29, 605.

— The Root-nodules of Myrica Gale (*), 26, hi.

— The Significance of Certain Food Sub- stances for Plant Growth (*), 28, 531.

Bowenia spectabilis, ovule : comparison with Pteridosperms, 26, 642 ; description (*), 26, 626; pollen chamber (*), 26, 641 ; vascular supply (*), 26, 63 r.

Bower, F. O. : Note on Ophioglossum sim- plex, Ridley, 22, 327.

— Notes on the Morphology of Ophio- glossum (Cheiroglossa) palmatum, L. (*), 25, 277.

— Medullation in the Pteridophyta (*), 25, 555, 1206.

— On the Primary Xylem and the Origin of Medullation in the Ophioglossaceae (*), 25, 537.

— Studies in the Phylogeny of the Filicales. I. Plagiogyria (*), 24, 423.

— Id. II. Lophosoria and its Relation to the Cyatheoideae and other Ferns (*), 26, 269.

— Id. III. On Metaxyla and certain other Primitive Ferns (*), 27, 443.

— Id. IV. Blechnum and Allied Genera (*),

28, 363.

— Id. V. Cheiropleuria bicuspis, (Bl.) Presl, and certain other related Forms (*), 29, 495-

Bulbils, of Lamprothamnus alopecuroides (*), 21, 61 ; of Lilium (*), 28, 355.

Buller, A. H. R. : The Function and Fate of the Cystidia of Coprinus atramentarius, together with some General Remarks on Coprinus Fruit-bodies (*), 24, 613.

Buphthalmum speciosum, seedling-structure, 28, 308.

Burkill, I. H.: see Willis, J. C.

Butler, E. J. : On Allomyces, a new Aquatic Fungus (*), 25, 1023.

Butler, O.: A Study on Gummosis of Prunus and Citrus, with Observations on

6

Annals of Botany.

Squamosis and Exanthema of the Citrus

n, 25, .07.

Brachychilum Horsfieldii, seedling-anatomy (*), 29, 215.

Brachyoxylon, wood-anatomy (*), 27, 540.

Bracts of Welwitschia mirabilis, morphology (*), 27, 547.

Brainea insignis, description and phylogeny (*), 28, 396.

Branch shedding of Bothrodendron (*), 29, 223.

Branching in leafy Hepaticae (*), 26, t.

Brassica Sinapis, insect visitors, 22, 619.

Brenchley, W. E. : On the Action of Certain Compounds of Zinc, Arsenic, and Boron on the Growth of Plants (*), 28, 283.

— On the Structure and Development of the Grain of Wheat (Triticum vulgare) (*), 23, 1 17.

— The Effect of the Concentration of the Nutrient Solution on the Growth of Barley and Wheat in Water Culture (*), 30, 77.

— The Development of the Grain of Barley, 26, 903.

— The Influence of Copper Sulphate and Manganese Sulphate upon the Growth of Barley (*), 24, 57 1-

— The Weeds of Arable Land in relation to the Soils on which they Grow, 25, 155.

— Id. II. 26, 95.

— Id. III. 27, 141.

Brierley, W. B. : The ‘ Endoconidia ’ of Thielavia basicola, Zopf. (*), 29, 483.

British Tuberaceae, structure and affinities (*), 23, 243.

Brooks, F. T. : Observations on the Biology of Botrytis cinerea (*), 22, 479.

— The Development of Gnomonia ery- throstoma, Pers,, the Cherry-leaf-scorch Disease (*), 24, 585.

— and Stiles, W. : The Structure of Podo- carpus spinulosus, (Smith) R. Br. (*), 24, 305.

Brooks, W. E. St. J. : see Fraser, H. C. I.

Broussonetia papyrifera, anatomy of leaf-fail, 25, 89.

Browallia viscosa, seedling-anatomy, 26, 737.

Brown, A. J. : On the Existence of a Semi- permeable Membrane enclosing the Seeds of some of the Gramineae, 21, 79.

Brown, H. T. : Some Studies on Yeast, 28, 197.

Brown, I. M. P. : Contributions to our Knowledge of the Anatomy of the Cone and Fertile Stem of Equisetum (*), 26, 663527,168.

— A Second Contribution to our Knowledge of the Anatomy of the Cone and Fertile Stem of Equisetum (*), 29, 231.

Brown, W. : Studies in the Physiology of Parasitism. I. The Action of Botrytis cinerea, 29, 313.

Brown, W. Id. II I. On the Relation between the ‘ Infection Drop 1 and the underlying Host Tissue, 30, 399.

Brown Oak, biology and effects of fungus, 29, 400 ; cause of production, 29, 395 ; general distribution, 29, 393 ; identity of fungus, 29, 405 ; origin, 29, 393 ; structure and development, 29, 398.

Bruschi, D. : Researches on the Vitality and Self-digestion of the Endosperm of some Graminaceae, 22, 449.

Bryophyta, spermatogenesis (*), 25, 415.

Burkili., I. H. : see Willis, J. C.

C.

Cactaceae, seedling-structure (*), 24, 125 ; tubercle (*), 24, 144.

Calamites, a note on wounded (*), 21, 277 ; branching (*), 21, 421.

— leptospadix, branching, 21, 421.

Calandrinia, spp., seedling-structure (*), 26,

175.

Calcium, role of, 21, 504, 526.

Callistemon rigida, dehiscence (*), 21, 135.

Callitris, abnormalities (*), 24, 563 5 female cone (*), 24,558 ; female gametophyte (*), 24, 559 ; fertilization and embryology (*), 24, 561 ; male cone (*), 24, 558 ; male gametophyte (*), 24, 560 ; megasporo- genesis (*), 24, 558 ; ovule (*), 24, 558.

— spp., seedling-anatomy, 22, 704.

Callitroideae, phylogeny (*), 27, 598.

Calluna vulgaris, insect visitors, 22, 606.

obligate symbiosis in (*), 29, 97 ; !

distribution of fungus (*), 29, 116, 123 ; endophyte, the (*), 29, 122, 128,; origin of ovarial infection (*), 29, 111.

Callus of sieve tubes (*), 22, 277.

Caltha palustris, insect visitors, 22, 618 seedling-anatomy, 28, 707.

Calycanthaceae, vascular anatomy, 22, 668.

Calycanthus, spp., seedling-anatomy (*), 28, 711.

— floridus, pollen mother-cells (*), 23, 30.

Campbell, D. H. : Studies on some Javanese

Anthocerotaceae. I. (*), 21, 467.

— Id. II. (*), 22,91.

— Supplementary Note to ‘ Studies on some Javanese Anthocerotaceae ’, 22, 330.

— The Embryo-Sac of Pandanus. — Pre- liminary Note, 22, 330.

— The Embryo-Sac of Pandanus(*),25,773.

— The Prothallium and Embryo of Danaea. Preliminary Note, 23, 691.

— The Structure and Affinities of Macro- glossum Alidae, Copeland (*), 28, 651.

Canada, fossil plantsfrom Eastern (*), 27, 243.

Cananga odorata, vascular anatomy (*), 22, 672.

Canna indica, pollination and respiratory activity, 21, 497.

Cannabis sativa, proteases of seeds, 22, 104 ; seedling-structure (*), 27, 806.

7

Index to Vo/s.

Capillitium in Myxomycetes, formation (*),

28, i.

Capparis, spp., seedling-structure (*), 28, 720. Capsella Bursa-pastoris, insect visitors, 22, 620.

Cardamine hirsuta, seedling-anatomy, 28, 718.

— pratensis, insect visitors, 22, 603. Cardiocarpus, description (*), 28, 89, 97.

— congruens, description (*), 28, 97.

— gutbieri, description (*), 28, 97.

Carex dioica, insect visitors, 22, 648.

— glauca, insect visitors, 22, 648.

Carica Papaya, development of seed-coat (*),

24, 607.

Carmichaelia australis, seedling-anatomy, 27, 816.

Carpinus Betulus, anatomy of leaf-fall, 25, 83; morphology of ovule (*), 23, 630; seedling-anatomy, 30, 589.

— Ostrya, seedling-structure, 30, 589. Carpolithus Nathorsti, a new Pteridosperm

with Sphenopteris type of foliage (*), 22, 57 ; description (*), 22, 57.

Carpophore of Agaricaceae, development (*),

25, 683.

Carruthers, D. : Contributions to the Cytology of Helvella crispa, Fries. (*), 25, 243-

Carter, M. G. : A Reconsideration of the Origin of ‘Transfusion Tissue’ (*),25,975. Carteria Fritschii, n. sp., description (*), 30, 369 ; diagnosis, 30, 372.

Garthamnus tinctorius, seedling-structure, 28, 321.

Carya, spp., seedling-structure, 30, 586. Caryophyllaceae, development and structure of seed of Alsinoideae (*), 21, 25.

Castanea sativa, anatomy of leaf-fall (*), 25, 52 ; seedling-structure (*), 30, 592. Castanopsis chrysophylla, affinity with Ro- sales, 28, 523 ; anatomy of flower (*), 28, 518; comparison with Juglans regia (*), 28, 522 ; morphology (*), 28, 51 1. Casuarina, spp., seedling-structure, 30, 579. Catalpa Kaempferi, anatomy of leaf-fail (*), 25, 99-

Catanella Opuntia, fruiting of, 27, 167.

Cavity parenchyma and thyloses in ferns (*), 22, 401.

Ceanothus americanus, root-nodules (*), 29, 605.

— gloire-de- Versailles, anatomy of leaf-fail, 25, 74.

Cedrus, spp., seedling-structure, 23, 198. Celastrus articulatus, anatomy of leaf-fall (*), 25, 96.

Cell reproduction in Saccharomyces in rela- tion to supply of oxygen, 28, 197.

— structure as studied by dark-ground illu- mination (*), 28, 601.

Cells, action of strychnine on somatic, 25, 1069.

XXI-XXX.

Celosia, spp., seedling-structure, 26, 181. Celtis occidentalis, anatomy of leaf-fall (*), 25, 73.

Centaurea, spp., seedling-structure, 28, 321. Central American species of Peperomia, 21, 147.

Centrifugal force as geotropic stimuli, value of different degrees of (*), 27, 719. Centrifuge, description of the intermittent (*), 27, 725.

Centripetal xylem in Equisetum (*), 23, 587. Centrospermae, seedling-structure (*), 26, 175-

Cephalocuros, notes on (*), 27, 781. Cephalotaxus, spp., seedling-structure (*), 22, 690.

— drupacea, gametophytes, fertilization and embryo, (*), 21, 1.

archegonia (*), 21, 9 ; embryo (*), 21,

15 ; female gametophyte (*), 21, 7 ; ferti- lization (*), 21, 12 ; male gametophyte (*), 21, 3 ; seedling-structure, 22, 692. Ceraria and Portulacaria, comparative anatomy (*), 26, 1111.

Cerastium alpinum, insect visitors, 22, 627.

— perfoliatum, seedling-structure, 26, 180.

— triviale, insect visitors, 22, 627.

Ceratonia siliqua, seedling-anatomy, 28, 726. Cercis siliquastrum, anatomy of leaf-fall,

25, 82.

Cereal rusts, development of Uredo mycelia (*),21,44i.

Cereus, spp., seedling-structure (*), 24, 137, Ceylon, evolution of species in (*), 30, 1. Chambers, H. S. : The Vestigial Axillary Strands of Trichomanes javanicum, B1-, (*), 25, 1037.

Chandler, B. : Utricularia emarginata, Benj., 23, 339; 24, 549 (*).

Characium Sieboldii, cell-structure (*), 30, 460 ; growth of young cell (*), 30, 464 ; zoospore formation (*), 30, 463.

Charisis heterophylla, seedling-structure (*), 28, 308.

Cheilanthes, anatomv of xerophilous species (*), 28, 671.

Cheiranthus, spp., seedling-anatomy (*), 28, 714.

— Cheiri, insect visitors, 22, 603 ; pollination and respiratory activity, 21, 494.

Cheiropleuria bicuspis, anatomy (*), 29, 502 ; phylogeny (*), 29, 495 ; sporangia (*), 29, 516 ; sporophyll (*), 29, 510. Chelidonium majus, seedling-anatomy (*), 28,719-

Chenopodiaceae, seedling-structure (*), 26,

182.

Chenopodium, spp., seedling-structure, 26,

183.

— Bonus- Henricus, insect visitors, 22,

646.

Cherry laurel, effect of chloroform on respira- ' tory exchanges (*), 27, 700.

8

Annals of Botany .

Cherry-leaf-scorch disease, see Gnomonia erythrostoma.

China, plant-formation of arid regions of Western, 26, 1105.

Chlamydomonas, action of poisons on, 28, 181 ; descriptions of species, 80, 376.

— sphagnicola, description (*), 30, 373 ; diagnosis, 30, 377.

Chloroform, effect of, on assimilation (*), 25, 1077 ; on respiratory exchanges of leaves, 25, 1077 ; (*), 27, 697.

Chlorophyll, development (*), 24, 805 ; dis- tribution in shoots of woody plants (*), 21, 437.

Chloroplasts, organs for light perception (*), 23, 480 ; splitting of (*), 21, 410 ; studied under dark-ground illumination (*), 28, 617 ; structure (*), 21, 407.

Choeromyces, description, 23, 261.

— meandriformis, description (*), 23, 261.

Chorisis in Aristea dichotoma (*), 26, 947.

Chroococcaceae, cytology (*), 28, 433.

Chroococcus macrococcus, cell-wall (*), 28,

444 ; protoplast (*), 28, 445 ; systematic position, 28, 447.

— turgidus, protoplast (*), 28, 438.

Chromatin, extrusion in pollen mother-cells

of Lilium candidum (*), 29, 285.

— in meiotic divisions of Vicia Faba, be- haviour of (*), 28, 633.

— bodies, observation on and relation to nucleolus (*), 23, 491 ; origin (*), 23, 492> 493? 497-

Chromosomes, conjugation of, in prophase of first division (*), 23, 46 ; in pollen mother- cells, heterotypic (*), 21, 309 ; longitudinal fission (*), 25, 849; permanence of (*), 23, 19.

Chrysalidocarpus lutescens, branching (*), 21, 419.

Chrysanthemum, spp., seedling-structure, 28, 316.

Chrysler, M. A. : The Nature of the Fer- tile Spike in Ophioglossaceae (*), 24, 1.

Chrysosplenium oppositifolium, insect visi- tors, 22, 638.

Chytrideae and Plasmodiophoraceae, re- lationship (*), 28, 227.

Cichoriumlntibus, seedling-structure, 28,32 1.

Cilia-insertion in Bacteriaceae, 21, 137.

Citrullus, spp., structure (*), 29, 580.

Citrus, exanthema (*), 25, 145; gummosis (*), 25, 107, 1 16 ; squamosis (*), 25, 141.

Cladophoraceae of the Tropics, freshwater, 21, 248.

Cladosporium, effect of temperature on ger- mination of conidia, 24, 365 ; growth and development of microsclerotia, 24, 366 ; relationship with Hormodendron, 24,

363, 367.

— herbarium, life-history (*), 24, 359.

Clark, A. M. : Secondary Thickening in

Kendrickia Walkeri, Hook. f. (*), 21, 361.

Clarke, J. J. : Abnormal Flowers of Ame- lanchier spicata (*), 26, 948.

Claytonia perfoliata, seedling-structure, 26, i77.

Clematis, spp., seedling-structure (*), 28, 705 ; vascular anatomy (*), 22, 661. Cleome sesquiorgialis, seedling-anatomy (*),

28, 720.

Clerodendron myrmecophilum, relationship with ants, 24, 470.

— trichotomum, anatomy of leaf-fail, 25, 81. Climate, alteration of the flora due to, 80,

557-

Clova Mountains, insect visitors of flowers of, 22, 603. *

Coal Measures, revision of seed-impressions of British (*), 28, 81.

Coburn, H. : The Fruiting of Catanella Opuntia, 27, 167.

Coccomyxa subellipsoideae, a new member of the Palmellaceae (*), 28, 573 ; sys- tematic position, 28, 575 ; zoogonidia formation (*), 23, 574.

Cochlearia officinalis, insect visitors, 22, 619. Coco-nut, branching in a bulbiliferous (*), 21, 420 ; germination of the double (*), 24, 223.

Cocos nucifera, branching, 21, 419.

Coix Lacryma-Jobi, seedling-anatomy (*),

29, 195.

Colchicum autumnale, seedling-anatomy, 29, 218.

Cole, R. D. : see Jeffrey, E. C. Coleoptile, an abnormal (*), 30, 509 ; nature of(*), 30, 510.

Collema, a new type of spermogonium and fertilization in (*), 26, 747.

— pulposum, fertilization (*), 26, 741. Colloidal silica, supposed origin of life in

(*), 30, 383.

Commelina coelestis, seedling-anatomy (*), 29, 217.

Companion cells, anatomy (*), 22, 264. Compositae, nuclear division (*), 26, 705 ; anaphase (*), 26, 714; diakinesis (*), 26, 713; homotype division (*), 26, 716; metaphase (*), 26, 714; presynapsis (*), 26, 706 ; second contraction (*), 26, 711 ; somatic divisions (*), 26, 719; spireme (*), 26, 709 ; synapsis (*), 26, 708 ; telo- phase (*), 26, 714.

— pollen-presentation mechanism (*), 29, 457 ; stamens and styles, description (*), 29, 461.

— seedling-structure (*), 28, 303. Compton, R. H. : An Anatomical Study of

Syncotyly and Schizocotyly (*), 27, 793.

— Note on a Case of Doubling of Embryo- sac, Pollen-tube, and Embryo, 26, 243.

Concentration of nutrient solution in water- cultures, effect of, 29, 89 $ 30, 77.

— of poison, variation of death-rate with, 23, 185.

Index to Vols. XXI-XXX.

9

Cone and fertile stem of Equisetum, anatomy (*), 29, 231.

Confervales in the Tropics, 21, 255. Coniferae, efficiency and survival, 24, 261 ; insect pests, 24, 267; tracheidal wood, reason for, 24, 254; transpiration, 24, 242 ; vulnerability and suppression, 24, 263 ; xerophytism, rationale of, 24, 260. Coniferales, distribution of bars of Sanio (*),

24, 1 19.

Coniferous woods, identification (*), 25, 317 : structure of Jurassic from Yorkshire (*), 27, 533-

Conifers, anatomy of mesozoic (*), 27, 533. Conjugate nuclei in Ascomycetes (*), 30, 415. Conjugation of chromosomes in prophase of first division (*), 23, 46.

Conostoma, diagnosis, 25, 37.

— affinities and structure of the group (*),

25, 1 ; classification and diagnoses, 25, 36 ; comparisons (*), 25, 31.

— anglo-germanicum, n. sp., diagnosis, 25, 38; enumerations of specimens, 25, 23; general features (*), 25, 24; lageno- stome (*), 25, 30 ; nucellus (*), 25, 30 ; plinth (*), 25, 31; testa (*), 25, 28; vascular system (*), 25, 29.

— oblongum, ‘blow off’ layer (*), 25, 14; diagnosis, 25, 37 ; enumeration of speci- mens, 25, 5 ; general features (*), 25, 7 ; lagenostome and plinth (*), 25, 16 ; nucel- lus (*), 25, 16; soft integument (*), 25, 1 3 ; testa (*), 25, 9 ; vascular system (*),

25, 13.

Convolvulaceae, seedling-anatomy (*), 26, 728.

Convolvulus tricolor, seedling-anatomy (*),

' 26,728,731.

Copper sulphate, influence of, on growth of barley (*), 24, 572.

Coprinus, fruit bodies, 24, 623.

— atramentarius, function and fate of cys- tidia (*), 24, 616.

— sterquilinus, germination of spores (*), 29, 135.

Cordaicarpus, description (*), 28, 91, 100.

— areolatus, description (*),, 28, 100.

- — Cordai, description, 28, 100.

■ — ovoidens, description (*), 28, 100. Cordaites Felicis, n. sp., comparison with other species (*), 26, 205 ; description,

26, 206 ; leaf, general account (*), 26, 202. Corispermum hyssopifolium, seedling-struc- ture, 26, 184.

Cornucarpus, n. gen., description (*), 28, 88, 96.

I* — acutus, description (*), 28, 97.

Cornus, spp., anatomy of leaf-fall (*), 25, 93. Corona of Narcissus, morphology (*), 28, 541.

[ Corrigiola littoralis, seedling-structure, 26, 181.

Cortex of Sigillaria mamillaris, 23, 513.

Corydalis, spp., seedling-anatomy, 28, 720. Corylus avellana, proteases of seeds, 22, 1 09 ; seedling-structure, 30, 590.

— Colurna, anatomy of leaf-fall, 25, 81. Costaria Turneri, embryonal stages (*), 25,

692 ; post-embryonal stages (*), 25, 702. Cotoneaster affinis, seedling-anatomy, 28, 724.

— microphylla, insect visitors, 22, 609. Cotyledon of grass, position (*), 30, 516 ;

of Scitamineae, mesarch structure (*), 24, 485 ; stomata in hypogeal, 28, 545. Cotyledon orbiculare, seedling-anatomy, 28, 724.

Crambe tartarica, seedling-anatomy, 28, 7 1 8. Crataegus Oxyacantha, insect visitors, 22, 639; seedling-anatomy, 28, 724.

Crepis rubra, seedling-structure, 28, 322. Cretaceous of New Zealand, early type of Abietineae from (*), 30, 111.

— plants, structure and affinities, 24, 231.

— species of Pinus, leaf-structure (*), 22, 207 ; 24, 395.

Cretovarium, flower-structure (*), 24, 679. Crops and weeds, interrelationship, 27, 155. Crupina Crupinastrum, seedling-structure, 28, 320.

Cryptomeria japonica, seedling-structure, 22, 708.

Cryptomeriopsis, a reply to Prof. Jeffrey, 25, 269.

Cucubalus baccifer, seedling-structure, 26,

177.

Cucumis, spp., structure, 29, 579.

— sativus, root-system, 26, 951.

Cucurbita, development of sieve tubes (*),

22, 273.

— spp., structure (*), 29, 574. Cucurbitaceae, origin and meaning of medul- lary phloem in stem (*), 29, 567.

Cunninghamia, traumatic ray tracheides ■(*),

22, 593.

Cupressineae, gametophytes and embryo (*), 21, 281 ; seedling-anatomy (*), 22, 696. Cupressoideae, phylogeny (*), 27, 598. Cupressus, spp., seedling-anatomy (*), 22, 699.

Cuscuta, histology (*), 25, 655, 658.

- — Epilinum, seedling-anatomy (*), 26, 732. Cutting, E. M. : On Androgynous Recep- tacles in Marchantia (*), 24, 349.

— On the Sexuality and Development of the Ascocarp in Ascophanus carneus, Pers. (*),

23, 399.

Cyatheoideae, relationship of Lophosoria to (*), 26, 269.

Cycadaceae, centripetal and centrifugal xylems of petioles (*), 28, 183 ; relation- ship with Monocotyledons, 25, 724 ; root nodules (*), 29, 619; seedling-structure (*),23, 437.

Cystidia of Coprinus atramentarius, function and fate (*), 24, 616.

IO

Annals of Botany .

Cystopteris, phyletic consideration (*), 26, 302.

Cytase secretion by embryo and aleurone layer of Hordeum, 25, 1169.

Cytology of Asconwcetes (*), 22, 465 ; of Chroococcaceae (*), 28, 433 ; of Helvetia crispa (*), 25, 243 ; of hybrid and varietal ferns (*), 24, 19 1 ; of Protococcales (*), 30, 459, 467 ; of Saccharomyces (*), 24, 45; of tumours of Veronica caused by Sorosphaera (*), 24, 37.

D.

Daemonorops, symbiosis with ants, 24, 461.

— longipes, branching, 23, 339.

Dale, E. : A Bacterial Disease of Potato Leaves (*), 26, 133.

— On the Cause of ‘ Blindness ’ in Potato Tubers, 24, 129.

Danaea, prothallium and embryo, 23, 691.

Datura, spp., seedling-anatomy (*), 26, 734.

Davallia, phylogeny (*), 27, 461.

— fumarioides, structure (*), 30, 502.

Davey, A. J. : Seedling Anatomy of certain

Amentiferae (*), 30, 575.

Davie, R. C. : The Development of the Sorus and Sporangium and the Prothallus of Peranema cyatheoides, D. Don (*), 30, 101.

— The Structure and Affinities of Peranema and Diacalpe (*), 26, 245.

Davis, B. M. : Cytological Studies on Oenothera. I. Pollen Development of Oenothera grandiflora (*), 23, 551.

— Id. II. The Reduction Divisions of Oenothera biennis (*), 24, 631.

— Id. III. A Comparison of the Reduction Divisions of Oenothera Lamarckiana and O. gigas (*), 25, 941.

— Spore Formation in Derbesia (*), 22, 1.

Day, D. L.: see Bergtheil, C.

Death-rate, variation of, with concentration

of poison, 23, 185.

de Bruyn, H. : The Ontogenetic Develop- ment of the Stele in Two Species of Dipteris (*), 25, 761.

Decaisnea Fargesii, seedling-anatomy (*),

28, 709.

Defoliation, effect of, on growth and structure of wood of Larix (*), 27, 621.

DE Fraine, E. : On Medullosa centrofilis, a New Species of Medullosa from the Lower Coal Measures (*), 28, 251.

— On the Structure and Affinities of Sut- cliffia, in the Light of a Newly Discovered Specimen (*), 26, 1031.

— The Morphology and Anatomy of the Genus Statice as represented at Blakeney Point. Part I. Statice binervosa, G. E. Smith, and S. bellidifolia, D.C. (= S. re- ticulata). With Systematic and Ecological Notes by E. J. Salisbury (*), 30, 239.

de Fraine, E. : The Seedling Structure of certain Cactaceae (*), 24, 125.

— see Hill, T. G.

Dehiscence of Callistemon rigida (*), 21, 135.

Delf, E. M. : Note on an attached Species of Spirogyra (*), 27, 366.

— Studies of Protoplasmic Permeability by Measurement of Rate of Shrinkage of Turgid Tissues. I. The Influence of Temperature on. the Permeability of Proto- plasm to Water (*), 30, 283.

— The Attaching Discs of the Ulvaceae (*), 26, 403.

— The Transpiration and Behaviour of Stomata in Halophytes (*), 25, 485.

— Transpiration in Succulent Plants (*), 26, 409.

Delphinium, spp., seedling-anatomy, 28, 707*

Dendroceros, embryo (*), 22, 94 ; reproduc- tive organs (*), 22, 93 ; thallus-anatomy

(*), 22, 93.

Derbesia, blepharoplast, development (*), 22, 6 ; segmentation of protoplasm (*), 22, 5 ; sporangium, development and nu- clear changes (*), 22, 2 ; spore-formation (*), 22, 1 ; taxonomic characters of zoo- spore and motile gamete, 22, 14 ; zoospore, germination (*), 22, 9 ; zoospore, habits (*), 22, 2.

Desert plants, transpiration, 26, 435 ; water balance (*), 26, 71.

Desiccating plants, growth activities, 26,

83.

Desmids, nuclear division (*), 30, 379 ; tropical, 21, 263.

Destruction of species by man, 30, 554. Diacalpe, phylogenic consideration, 26, 306. — aspidioides (*), 26, 255 ; external charac- ters, 26, 257 ; internal structure (*), 26,

257.

Dianthus, spp., seedling-structure, 26, 179. Diascia Barberae, seedling-anatomy (*), 26, 738.

Diastase : malt diastase, 24, 213; taka diastase, 24, 217.

Dicksonieae, phylogeny (*), 27, 453. Dicotyledons, origin of multiseriate ray (*), 25, 1005 ; relation of leaf-trace to forma- tion of compound rays in lower (*), 25, 225.

Digby, L. : Observations on ‘ Chromatin Bodies ’ and their Relation to the Nucleo-

lus in Galtonia candicans (*), 23, 491.

— The Cytology of Primula Kewensis and of other related Primula Hybrids (*), 26,

— The Somatic, Premeiotic, and Meiotic Nuclear Divisions of Galtonia candicans (*), 24, 727.

— see Farmer, J. B.

Digestion of - endosperm of Graminaceae,

self-, 22, 449.

Digitalis, spp., seedling anatomy, 26, 74°-

Index to Vols.

Digitalis purpurea, pollination and respira- tory activity, 21, 492.

Dimorphotheca pluvialis, seedling-structure

(*), 28, 318.

Dioon edule, seedling-structure (*), 23, 446.

Diospyrus virginiana, anatomy of leaf-fall, 25, 76.

Diplanthera, stem-anatomy (*), 28, 643, 646.

Dipteris, sporangia (*), 29, 516 ; sporophyll

(*), 29, 510.

— conjugata and Lobbiana, ontogenetic de- velopment of stele (*), 25, 761.

Dischidia rafflesiana, symbiosis with ants, 24, 462.

Dischisma arenarium, seedling anatomy, 26, 439-

Discs of Ulvaceae, attaching (*), 26, 403.

Distribution of species in New Zealand (*), 30, 437 ; in woods of north-east Kent (*), 25, 857.

Doodia, phylogeny (*), 28, 401.

Doubling of embryo-sac, pollen-tube, and embryo in Lychnis, 26, 243.

Doyle, J. : Note on the Structure of the Ovule of Larix leptolepis (*), 30, 193.

— On the Proliferous Form of the Scape of Plantago lanceolata (*), 30, 353.

Draba Aizoon, seedling-anatomy (*), 28, 716.

Drew, G. H. : The Reproduction and Early Development of Laminaria digitata and Laminaria saccharina (*), 24, 177.

Drosera, vegetative propagation (*), 29, 308.

Drimys, spp., anatomy, 22, 667 ; 29, 31 1 ; traumatically induced structures (*), 30, 359-

Dummer, R. A. : A Bisexual ‘ Gymno- spermous’ Begonia (*), 26, 1123.

— Grape Sugar as an Excretion of Platy- cerium (*), 25, 1205.

— Peloria in Saintpaulia ionantha, Wend- land (*), 26, 946.

Duthie, A. V.: Anatomy of Gnetum afri- canum (*), 26, 593.

Dutt, C. P. : Pityostrobus macrocephalus, L. and H. A Tertiary Cone showing Ovular Structures (*), 30, 529.

Dysmorphococcus variabilis, n. gen. et sp., description (*), 30, 151.

E.

Eames, A. J. : On the Occurrence of Centri- petal Xylem in Equisetum (*), 23, 587.

— On the Origin of the Herbaceous Type in the Angiosperms (*), 25, 215.

— The Morphology of Agathis australis (*), 27, 1.

Eastwood, A. : see Sutherland, G. K.

Ecballium Elaterium, structure (*), 29, 582.

Echinocactus, spp., seedling-structure (*), 24, 150.

— Wislizeni, water balance (*), 26, 72.

Echinocereus, spp., seedling-structure (*),

24, 143.

XXI-XXX. 1 1

Echinopsis, spp., seedling-structure (*), 24, 143, *49-

Elaeagnus, morphology of root-tubercles (*), 26, 1 19.

Elaioplasts (*), 23, 63.

Elaphomyces, description (*), 23, 248.

— spp. , description (*), 23, 248.

Electrical conditions, respiration of plants

under various (*), 28, 135.

— response and germination, seed testing by, 30, 181.

in cotton plants (*), 27, 103.

Electrolytes as criteria of antagonistic ion- action, exosmosis of (*), 29, 349.

Elephantiasis of banana caused by Ustilagi- noidella oedipigera (*), 25, 363.

Elettaria Cardamomum, seedling-anatomy (*), 29, 209.

Ellis, D. : On the Constancy of Cilia- insertion in Bacteriaceae, 21, 137.

Embryo, morphology of monocotyledonous, particularly that of the grass (*), 30, 509.

— of Cephalotaxus drupacea (*), 21, 1 ; of Cupressineae (*), 21, 281 ; of Libocedrus decurrens (*), 21, 281 ; of Penaeaceae (*),- 23, 363 ; of Pseudotsuga Douglasii (*), 23, 163 ; of Sciadopitys verticillata (*), 24, 403.

— and seedling in the Gramineae, compara- tive morphology (*), 29, 161.

— gametophytes, and fertilization of Cepha- lotaxus drupacea (*), 21, 1.

— of Hordeum, amyloclastic secretory capa- city, 25, 8 1 1.

— secretions, starch liquefying and sacchari- fying properties, 25, 1154.

Embryo-sac of Pandanus, 22, 330 ; 25, 773 (*) ; of Penaeaceae, 22, 329 ; 23, 363 (*) ; of Protea Lepidocarpon, 23, 161.

— mother-cell of Lilium, heterotypic mitosis (*), 23, 343.

Encephalartos Altensteinii, seedling-structure (*), 23, 449-

Endemic flora of Ceylon (*), 30, 1.

— species, 30, 558.

Endemism and the Mutation Theory, 30, 551-

Endocalyx, the genus, 22, 389.

— spp., descriptions (*), 22, 390.

— cinctus, n. sp., description (*), 22, 394.

Endoconidia of Thielavia basicola (*), 29,

483.

Endodermis in stem of Hippuris, origin of (*), 30, 91.

Endosperm ot Gramineae, vitality and self- digestion, 22, 449.

Endospermic respiration of seeds, 22, 415.

Entorhiza Cypericola, life-history (*), 24, 520.

Enzymes of Panama disease, 25, 357.

Ephedra, anatomy and morphology of bract (*), 26, 955 ; female strobilus (*), 26, 957, 976; flower (*), 26, 955; inflorescence

12

Annals of Botany .

(*)> 26, 953, 955; male flower (*), 26, 970, 974; male strobilus (*), 26, 970; ovule (*), 26, 963; peduncle (*), 26, 956.

Ephedra, structure: bast (*), 26, 1095; cortex (*), 26, 1096 ; leaf (*), 26, 1097 ; pith (*), 26, 1078; primary vascular strands (*), 26, 1079 ; secondary wood (*), 26, 1084 ; root, 26, 1097.

— spp., seedling-structure (*), 24, 319.

— altissima, fertilization (*), 23, 509.

— — and E. distachya, relationship (*), 26, 962.

Epiblast, nature of (*), 30, 514.

Epidermis, optical behaviour (*), 23, 460.

Epigyny, discussion, 23, 632.

Epilobium, spp., insect visitors, 22, 612.

Epimedium pinnatum, vascular anatomy (*), 22, 674.

Epiphytes, ants and, 24, 466 ; transpiration, 26, 436.

Equisetales, cones of, 29, 258.

Equisetum, anatomy of cone and fertile stem (*), 26, 663 ; 27, 168 ; alternation and superposition of whorls of cone (*), 26, 679; apex of cone, 26, 682; centripetal xylem (*), 23, 587; transition from fertile stem to cone (*), 26, 690 ; vegetative nodes, structure (*), 26, 683.

— arvense, anatomy of cone (*), 26, 665 ; meiotic divisions (*), 27, 648 ; premeiotic divisions (*), 27, 644.

— debile, antheridium development (*), 28, 174 ; embryo (*), 28, 176 ; prothallus (*), 28, 163, 166 ; sexual organs (*), 28, 172 ; spore germination (*), 28, 164.

— limosum, anatomy of cone (*), 26, 675.

— maximum, branching cone (*), 29, 249 ; cone anatomy (*), 29, 232 ; course of vascular strands (*), 29, 235, 242 ; fertile stem (*), 29, 252; medullary tracheides (*), 29, 240 ; phytogeny of cone, 29, 258 ; whorls of cone, position, 29, 238.

— palustre, anatomy of cone (*), 26, 665.

Ericaceae, distribution of endophyte in sym- biotic, 29, 123.

Erysimum pulchellum, seedling anatomy, 28, 7i5.

Erythrococcus, the genus, 25, 575 ; descrip- tion of species, 25, 609 ; diagnosis, 25, 606 ; distribution, 25, 632 ; historical re- view, 25, 587 ; key to species, 25, 608 ; properties, 25, 638.

Essed, E. : Rice Disease caused by Ustilagi- noidella graminicola (*), 25, 367.

— The Panama Disease. Preliminary No- tice (*), 24, 488.

— The Panama Disease. I. (*), 25, 343. -Id. II. (*), 25, 353.

— The Surinam Disease. A Condition of Elephantiasis of the Banana caused by Ustilaginoidella oedipigera (*), 25, 363.

Eucalyptus trees, rate of ascent of sap, 24, 9 1 .

Eucalyptus Calophylla, pollination and re- spiratory activity, 21, 489.

Euchlaena mexicana, seedling-anatomy, 29, ' 198.

Eupomatia Bennettii, vascular anatomy, 22, 671.

Evans, A. W. : Branching in Leafy Hepa- 1 ticae (*), 26, 1.

— Vegetative Reproduction in Metzgeria (*), 24, 271.

Evans, I. B. P. : The Cereal Rusts. I. The Development of their Uredo my celia (*), 21, 441.

Evaporation and temperature, relation be- tween, in marsh vegetation (*), 23, 275.

— as a measure of the atmospheric promo- tion of transpiration (*), 23, 282 ; mutual protection of shoots, 23, 303.

Evaporimeter (*), 23, 284.

Evolution of Angiosperms (*), 22, 489 ; of species in Ceylon with reference to the dying out of species (*), 30, 1.

Ewart, A. J. : The Delayed Dehiscence of Callistemon rigida, R. Br» (*), 21, 135.

— and Rees, B. : Transpiration and the Ascent of Water in Trees under Austra- lian Conditions (*), 24, 85.

Exanthema of Citrus, cause, 25, 148; de- scription (*), 25, 145 ; histology (*), 25, 146; historical, 25, 145; preventive and remedial measures, 25, 149.

Exocarpus, comparison of haustorium with that of Thesium (*), 24, 674 ; haustorium (*), 24, 669 ; haustorium and root mor- phology (*), 24, 669 ; phloeotracheides (*), 24, 671.

Exochorda, spp., seedling-anatomy, 28, 723.

Exosmosis of electrolytes as criterion of an- tagonistic ion-action (*), 29, 349.

Extrafloral nectaries of Polygonum (*), 23, 229.

F.

Fagaceae, medullary rays, 26, 1124; struc- ture of flower and its bearing on affinity of the group (*), 28, 5°9-

Fagus sylvatica, seedling-structure, 30, 594.

Farm land, plant communities of, 30, 161.

Farmer, J. B. : Telosynapsis and Parasyna- psis, 26, 623.

— and Digby, L. : On the Cytological Features exhibited by certain Varietal and Hybrid Ferns (*), 24, 191.

— — Studies in Apospory and Apogamy in Ferns (*), 21, 161.

Fasciated seedlings, morphology and physio- logy (*), 26, 389.

Faull, J. H. : The Cytology of Laboulbenia chaetophora and L. Gyrinidarum (*), 26,

325-

— The Cytology of the Laboulbeniales, 25, 649.

Fegatella, spermatogenesis (*), 25, 299.

Index to Vols. XXI-XXX.

l3

Ferdinandsen, C., and Winge, O. : Osten- feldiella, a New Genus of Plasmodio- phoraceae (*), 28, 643.

Fermentation by Saccharomyces, thermal phenomena, 28, 217.

Ferns, apogamy and apospory (*), 21, 16 r ; cavity parenchyma and thyloses (*), 22, 401 ; cytology of hybrid and varietal (*), 24, 191 ; nature of tracheae (*), 22, 517 ; phyletic relation, 26, 31 1.

I Fertile stem and cone of Equisetum, anatomy (*), 29, 231.

I Fertilization of Gephalotaxus drupacea (*), 21, 1 ; of Collema (*), 26, 747 ; in Ephedra altissima (*), 28, 509 ; in Lilium (*), 27, hi.

I Ficus Carica, anatomy of leaf-fall, 25, 89. Filicales, phylogenv (*). 24, 423 ; 26, 269 ;

27, 443 i 28, 363 ; 29. 495.

Filicinean leaf-trace evolution (*), 25, 167;

petiolar wound reactions (*), 26, 777. Fischer, G. C. E. : On the Development of the Fructification of Armillaria mucida, Schrad. (*), 28, 503.

— The Biology of Armillaria mucida, Schrad. (*), 23, 515.

Fixing and other reagents, action on cell (*),

28, 623.

.Flora, alterations of, due to climatic changes, 30, 557.

Florideae of Tropics, freshwater, 21, 268. Flowers and Insects in Great Britain, 22, 603.

Foliar gaps in Osmundaceae (*), 24, 107.

— ray of dicotyledonous wood, diffusion, 26, 653 ; evolution (*), 26, 647 ; roots (*), 26. 655 ; reduction (*), 26, 653 ; traumatic regions (*), 26, 655 ; twigs (*), 26, 654, 656.

Formaldehyde, quantitative experiments on effect of, on living plants (*), 27, 41 1.

— question, the, 27, 426.

Forsythia Fortunei, anatomy of leaf-fail, 25, 77.

Fortunea chinensis, seedling-structure (*),

30, 587.

Fossil flora of Eastern Canada (*), 27, 243. Fossombronia, discharge of antherozoids (*), 23, 159.

Fragaria indica, seedling-anatomy, 28, 723.

— vesca, insect visitors, 22, 624.

Fraser, H. C. I.: Contributions to the

Cytology of Humaria rutilans, 21, 307.

— Contributions to the Cytology of Humaria rutilans, Fries. (*), 22, 35.

— On the Sexuality and Development of the Ascocarp in Lachnea stercorea, Pers. (*), 21, 349.

— (Mrs. Gwynne-Vaughan) : The Beha- viour of the Chromatin in the Meiotic Divisions of Vicia Faba (*), 28, 633.

The Development of the Ascocarp in

Lachnea cretea (*), 27, 553.

Fraser, H. C. I., and Brooks, W. E. St. J. : Further Studies on the Cytology of the Ascus (*), 23, 537.

— and Snell, J. : The Vegetative Divisions in Vicia Faba (*), 25, 845.

— and Welsford, E. J.: Further Contri- butions to the Cytology of the Ascomycetes (*)> 22, 465.

Fraser, M. T. : Parallel Tests of Seeds by Germination and by Electrical Response (Preliminary Experiments), 30, 181.

F raxinus excelsior, anatomy of leaf-fall, 25, 98 ; phyllotaxy, abnormal, 29, 307.

Fritsch, F. E. : The Morphology and Ecology of an Extreme T errestrial Form of Zygnema (Zygogonium) ericetorum, (Kuetz.) Hansg. (*), 30, 135.

— • The Subaerial and F resh water Algal Flora of the T ropics. A Phytogeographical and Ecological Study, 21, 235.

— and Rich, F. : Studies on the Occurrence and Reproduction of British Freshwater Algae in Nature. I. Preliminary Obser- vations on Spirogyra (*), 21, 423.

— and Takeda, H. : On a Species of Chla- mydomonas (C. sphagnicola, F. E. Fritsch andTakeda — Isococcus sphagnicolus, F. E. Fritsch) (*), 30, 373.

Fuchsia, supernumery pollen-grains, 21, 305.

— serratifolia, pollination and respiratory activity, 21, 490.

Fuirena oedipus (*), 22, 189; histology of aerial stem (*), 22, 190 ; of basal internode (*), 22, 191 ; of leaf (*), 22, 192 ; of rhizome (*), 22, 187.

— stricta and subdigitata, leaf-structure, 22, 192.

Fujli, K. : see Stopes, M. C.

Fungi, on parasitic (*), 24, 359.

Fungus spores and their germination studied by dark-ground illumination (*), 28, 61 1.

G.

Gaillardia aristata, seedling-structure, 28, 316.

— . Lorenziana, elaioplasts (*), 23, 63.

Galinsoga parviflora, seedling-structure, 28, 3i5.

Galium, spp., insect visitors, 22, 642.

— morphology of stipulus (*), 30, 197, 60 r.

Gallagher, W. J. : The Cytology of

Rhoeo discolor, 22, 117.

Galtonia, heterotypic chromosomes in pollen mother-cells, 21, 329.

— candicans, chromatin bodies, origin from nucleolus (*), 23, 495 ; from presynaptic framework (*), 23, 493 ; from synaptic knot (*), 23, 492.

meiotic divisions (*), 24, 736, 746 ;

presynapsis (*), 23, 491 ; somatic and pre- meiotic divisions (*), 24, 728 ; synapsis (*), 23, 491 ; walls of pollen mother-cells (*), 23, 494-

1 4 A nnals of Botany .

Galvanotropism of roots (*), 21, 387. Gametophytes of Gephalotaxus drupacea (*), 21, 1 ; of Cupressineae (*), 21, 281 ; of Libocedrus decurrens (*), 21, 281; of Pseudotsuga Douglasii (*), 23, 163 ; of Sciadopitys verticillata (*), 24, 403. Gaseous exchanges of plants, on Bonnier and Mangin’s apparatus (*), 27, 565. Gastrodia elata and its mycorhiza, 25, 521. Gates, R. R. : Pollen Formation in Oeno- thera gigas (*), 25, 909.

— Somatic Mitoses in Oenothera (*), 26, 993.

Gemmae of Metzgeria (*), 24, 273.

Genea, description, 23, 251.

— spp ., descriptions (*), 23, 251. Geographical Distribution and Natural

Selection (*), 30, 1.

Geophilous species of Peperomia (*), 21, 139. Georgevitch, P. : Preliminary Note on Apospory and Apogamy in Trichomanes Kaulfussii, Hk. et Grew. (*), 24, 233. Geotropic stimuli, value of different degrees of centrifugal force as (*), 27, 719. Geranium sylvaticum, insect visitors, 22, 610. Germination, Alsinoideae (*), 21, 42 ; double coco-nut (*), 24, 223 ; Helianthus annuus (*), 24, 693, 889 ; Marah, spp . (*), 30, 215; spores of Coprinus sterquilinus (*), 29, 135.

— and electrical response, seed testing by,

30,i8i.

— of seeds, studies in (*), 30, 215.

Gerry, E. : The Distribution of the * Bars

of Sanio’ in the Coniferales (*), 24, 119. Geum, spp., seedling-anatomy, 28, 723. Gibbs, L. S. : Bio-histological Notes on some New Rhodesian Species of Fuirena, Hes- perantha, and Justicia (*), 22, 187.

— Notes on the Development and Structure of the Seed in the Alsinoideae (*),21, 25.

— On the Development of the Female Strobilus in Podocarpus (*), 26, 515.

Gibson, R. H. : A Photosynthetic Theory of Photosynthesis, 22, 117.

Gibson, R. J. H. : The Extent of the Root- system of Gucumis sativus, 26, 951. Gibsonia, a new genus of Ascomycetes (*), 23, 336.

— phaeospora, sp., description (*), 23, 336. Ginkgo, ribbing of seeds (*), 29, 591 ; seed- ling-structure (*), 23, 433.

— and Trigonocarpus, relationship, 30, 356. Glands of succulents, 26, 422 ; of Undaria,

mucilage (*), 23, 613.

Glaucium serpieri, seedling-anatomy (*), 28, 719.

Glaucocystis Nostochinearum, description and structure (*), 29, 423.

Gleditschia triacanthos, anatomy of leaf-fail (*)> 25, 79.

Gleichenia, phyletic consideration (*), 26, 270 ; vascular structure (*), 23, 419.

Gluck, H. : Contributions to our Knowledge of the Species of Utricularia of Great Britain, with Special Regard to the Mor- phology and Geographical Distribution of Utricularia ochroleuca (*), 27, 607.

Glycogen of Saccharomyces (*), 24, 61.

Gnetales, anatomy and relationships (*), 26, 1077 ; ancestors of, 22, 509 ; comparison of flowers of, 26, 979 ; seedling-structure (*)> 24, 319.

— and Angiosperms, relationship (*), 22, 489,

— , amphisporangiate condition primi-

tive, 22, 497 ; female gametophyte, 22, 505; historical, 22, 492; megasporan- gium, 22, 504 ; microsporophylls and microsporangia (*), 22, 501 ; morphology, i 22, 496 ; perianth (*), 22, 498 ; strobili, aggregates of, 22, 500.

Gnetopsis elliptica, comparison with Cono- stoma (*), 25, 31.

Gnetum, comparison of female flower with that of Welwitschia, 25, 1124; com- parison of seeds with those of Bennettitales,

25, 1125 ; inflorescence axis structure, 26, 621 ; microsporangium, microspore, and structure of inflorescence (*), 26, 603.

— spp., seedling-structure (*), 24, 326.

— africanum, anatomy of inflorescence axis and cupule (*), 25, 1103; anatomy of stalk of ovule (*), 25, mo; external characters, 26, 593 ; inflorescence and ovule, morphology (*), 25, 1102; leaf- structure (*), 26, 598 ; ovule development (*), 25, 1 1 18; seed (*), 25, 1112; j stem-structure (*), 26, 594-

— Gnemon, stoma development (*), 27, 365 ; structure of female strobilus (*), |

26, 987.

— scandens, anatomy of inflorescence axis i and cupule (*), 25, 1103; anatomy of stalk of ovule (*), 25, 1 1 10 ; inflorescence and ovule, morphology (*), 25, 1102; male inflorescence, abortive ovule (*), 25, t 1123; ovule development (*), 25, 1118; J seed, 25, 1118.

Gnomonia erythrostoma, appearance of 1 affected leaves, 24, 586 ; cytology of ascus (*), 24, 596 ; mycelium (*), 24, 587 ; perithecium development (*), 24, 594 ; spermogonia (*), 24, 589 ; tricho- gynes and ascogonia (*), 24, 591.

Gomphrena, spp., seedling-structure, 26, 182.

Goniothalamus, symbiosis with ants, 24, 461.

Gordon, W. T. : Note on the Prothallus of Lepidodendron Veltheimianum (*), 24, 821.

Gossypium, nuclear division (*), 24, 656.

Graham, M. : Studies in Nuclear Division of Preissia commutata (*), 27, 661.

Graminaceae, vitality and self-digestion of endosperm, 22, 449.

Gramineae, comparative morphology of the

Index to Vo/s. XXI-XXX.

*5

embryo and seedling (*), 29, 161 ; semi- permeable membranes of seeds, 21, 79.

Grape sugar excreted by Platycerium (*), 25, 1205.

Grass embryo, morphology (*), 30, 509.

— seedlings, comparative anatomy (*), 29, 170.

Grasses, a new parasitic root-fungus, 25, 270.

Great Britain, flowers and insects in, 22, 603.

Green, M. L. : Note on Anomalous Bulbils in a Lily (*), 28, 355.

Griffiths, B. M. : On Glaucocystis Nosto- chinearum, Itzigsohn (*), 29, 423.

— see West, G. S.

Griffithsia Bornetiana, life-history (*), 23, 639.

, asexual reproduction (*), 23, 663 ;

sexual reproduction (*), 23, 654 ; spore- germination (*), 23, 673 ; tetraspore-like structures (*), 23, 671 ; tetraspores (*),

23, 663 ; ^vegetative characters (*), 23, 641 ; vegetative multiplication (*), 23, 673-

Groom, P. : A Note on the Vegetative Anatomy of Pherosphaera Fitzgeraldi, F. v. M. (*), 30, 3 1 1.

— i Brown Oak ’ and its Origin, 29, 393.

— Remarks on the Oecology of Coniferae,

24, 241.

— The Evolution of the Annual Ring and Medullary Rays of Quercus (*), 25, 983.

— The Medullary Rays of Fagaceae, 26, 1124.

Grove, W. B. : j^Bayliss-Elliott, J. S.

Growth action of compounds of zinc, arsenic, and Boron on (*), 28, 283.

— activities of desiccating plants, 26, 83.

— * of barley, influence of copper sulphate and

manganese sulphate on (*), 24, 571.

— of Pisum sativum, influence of tempera- ture on rate of (*), 30, 25.

— of Salicornia, effect of salt on (*), 29, 143.

— in water-culture, effect of concentration of nutrient solution on, 29, 89 ; 30, 77 (*).

— significance of certain food substances for plant (*), 28, 531.

— • temperature and (*), 22, 557.

Gummosis of Prunus and Citrus (*), 25, 107; cause (*), 25, 129; chemistry of genus, 25, 122 ; description (*), 25, 118; histology (*), 25, 125; historical, 25, 117 ; nature of, 25, 13 1 ; preventive and

remedial measures, 25, 136; technique,

25, 123.

Gums of Prunus and Citrus, chemistry, 25, 122 ; reactions, 25, 123.

Gwynne-Vaughan, David Thomas: Bio- graphy (*), 30, 1.

— Observations on the Anatomy of the Leaf in the Osmundaceae (*), 30, 487.

— On a ‘ Mixed Pith ’ in an Anomalous Stem of Osmunda regalis (*), 28, 351.

Gwynne-Vaughan, David Thomas : On some Climbing Davallias and the Petiole of Lygodium (*), 30, 495.

— On the Real Nature of the Tracheae in the Ferns (*), 22, 517.

— Prefatory Note to Two Unpublished Papers by the late, 30, 485.

— Some Remarks on the Anatomy of the Osmundaceae (*), 25, 525.

Gwynne-Vaughan, H. C. I. : Biography of Ernest Lee, 1886-1915, 29, 639.

Gymnosperms, seedling-structure (*), 22, 689 ; 23, 189, 433 ; 24, 329.

Gypsophila Saxifraga, seedling-structure, 26, 179-

H.

Habenaria viridis, insect visitors, 22, 606.

Hair, different types of, in wallflower (*), 22, 714 ; production on Tropaeolum peregrinum (*), 26, 589.

Hairiness in marsh plants, 26, 816.

Hairs, cause of formation, 26, 842 ; effect of environment on production (*), 26, 834 ; of tomentum and ovary of Rhododen- dron Falconeri and R. Hodgsoni (*), 29, 635 ; physiological effect (*), 26, 850.

Halesia tetraptera, anatomy of leaf-fall (*), 25,76.

Halket, A. C. : The Effect of Salt on the Growth of Salicornia (*), 29, 143.

Halonia, general discussion, 28, 495.

Halophytes, absorption of water by green parts, 25, 496 ; transpiration and be- haviour of stomata, 25, 486 (*) ; 26, 437.

Haplomitrium Hookeri, discharge of an- therozoids (*), 23, 159.

Hardness in seeds of Indigofera arrecta, cause of (*), 21, 57.

Harper, A. G. : Defoliation : its Effects upon the Growth and Structure of the Wood of Larix (*), 27, 621.

Harper, R. A., and Dodge, B. O. : The Formation of the Capillitium in Certain Myxomycetes (*), 28, 1.

Harris, J. A.: On a Chemical Peculiarity of the Dimorphic Anthers of Lagerstroe- mia indica, with a Suggestion as to its Ecological Significance (*), 28, 499.

Harvey, H. W. : The Action of Poisons upon Chlamydomonas and other Vegetable Cells, 23, 18 1.

Haustorium, function, 24, 675.

— of Striga lutea, structure and develop- ment (*), 26, 1067.

Helianthemum vulgare, insect visitors, 22, 634

Helianthus annuus, abnormality in stem- structure (*), 30, 481; physiology of germination (*), 24, 693 ; seedling-struc- ture (*), 27, 795-

— tuberosus, anatomy of tuber (*), 24,

i6

Annals of Botany.

543 ; effect of chloroform on respiratory exchanges (*), 27, 705.

Helichrysum bracteatum, seedling-anatomy (*), 27, 816.

Helioperception (*), 28, 459.

Heliopsis laevis, seedling-structure (*), 28, 310.

Helleborus, spp ., vascular anatomy (*), 22, 659-

— foetidus, seedling-structure, 28, 707 ; vascular anatomy, 22, 660.

Helminthostachys, anatomy and morphology (*), 28, 19.

— zeylanica, adult rhizome structure (*), 29, 3 ; anatomical relationship of actual branches to main rhizome (*), 29, 14; juvenile rhizome, anatomy (*), 29, 24; rhizome andstelar structure, interpretation of (*), 29, 34; suspensor, 24, 61 1.

Helvella crispa, ascus development and for- mation (*), 25, 243, 247; chromatin bodies, 25, 249 ; meiosis (*), 25, 244, 246, 248 ; morphology, 25, 246 ; sexuality, 25, 247 ; spore-formation (*), 25, 246; vege- tative tissue (*), 25, 243.

Hemitella setosa, phylogeny (*), 27, 450.

Hemsley, W. B.: Two new Triuridaceae, with some Remarks on the Genus Sciaphila, Blume (*), 21, 71.

Henslow, G. : The Origin of Monocotyle- dons from Dicotyledons, through Self- adaptation to a Moist or Aquatic Habit, 25,717.

Hepaticae, branching in leafy (*), 26, 1 ; Acromastigum type (*), 26, 23 ; Frullania type (*), 26,4; intercalary branching (*), 26, *26 ; Microlepidozia type (*), 26, 21; Radula type (*), 26, 24 ; terminal branch- ing (*), 26, 4.

— spermatogenesis, 25, 299.

Herbaceous type, origin of, in Angiosperms

(*), 25, 215.

Heredity, idioplasmic theory of, 22, 550.

Hesperantha matopensis, scale leaves (*), 22, 197.

Hesperis tristis, seedling-anatomy, 28, 716.

Heterotypic chromosomes in pollen mother- cells (*), 21, 309.

— reduction in somatic cells, occurrence (*), 24, 775; in Hyacinthus candicans (*), 24, 781 ; in Pisum sativum (*), 24, 793 ; in Vicia Faba (*), 24, 788.

Heuchera alba, seedling-anatomy, 28, 724.

Hibiscus syriacus, anatomy of leaf-fail, 25,

7i.

Hickling, G. : TheAnatomyofPalaeostachya vera (*), 21, 369.

Hieracium alpinum, seedling-structure (*). 28, 323.

Hiley, W. E. : On the Value of Different Degrees of Centrifugal Force as Geotropic Stimuli (*), 27, 719.

— : see Boodle, L. A.

Hill, A. W. : A Revision of the Geophilous Species of Peperomia, with some additional Notes on their Morphology and Seedling- structure (*), 21, 139.

— Studies in Seed Germination. The Genus Marah (Megarrhiza), Cucurbitaceae (*), 30, 215.

— The Floral Morphology of the Genus Sebaea (*), 27, 479.

— The Production of Hairs on the Stems and Petioles of Tropaeolum peregrinum (*), 26, 589.

— The Histology of the Sieve Tubes of Angiosperms (*), 22, 245.

— The Origin of Monocotyledons (*), 22,

713.

Hill, T. G., and de Fraine, E. : A Con- sideration of the Facts relating to the Structure of Seedlings (*), 27, 257.

— On the Classification of Seed Leaves, 28, 359-

— On the Seedling-structure of certain Centrospermae (*), 26, 175.

— On the Seedling-structure of Gymno- sperms. I. (*), 22, 689.

— Id. II. (*), 23, 189.

-Mill. (*), 23, 433.

— Id. IV. (*), 24, 319.

Hillhousia, lime-sulphur bacteria of the genus (*), 27, 83.

Hippuris, origin of endodermis in stem (*), 30, 91.

Hind, M. : Studies in Permeability. III. The Absorption of Acids by Plant Tissue (*), 30, 223.

Hoar, C. S. : A Comparison of the Stem Anatomy of the Cohort Umbelliflorae (*), 29, 55.

Holden, R. : Contributions to the Anatomy of Mesozoic Conifers. No. 1. Jurassic Coniferous Woods from Yorkshire (*), 27, 53 3-

— Reduction and Reversion in the North American Salicales (*), 26, 165.

-7T- Some Fossil Plants from Eastern Canada (*), 27, 243.

Holden, H. S. : On the Occlusion of the Stomata in Tradescantia pulchella ('*), 27, 369.

— Preliminary Note on Periderm Formation in Filicinean Petioles, 24, 61 1.

— Further Observations on the Wound Reactions of the Petioles of Pteris aqui- lina (*), 30, 127.

— Some Wound Reactions in Filicinean Petioles (*), 26, 777.

Hooker, H. D. : Hydrotropism in Roots of Lupinus albus, 29, 265.

Hordeum, amyloclastic secretory capacities of embryo and aleurone layer, 25, 799, 1147; respirations of seeds, 22, 419.

— distichum, vitality and self-digestion of endosperm, 22, 456.

Index to Vo Is. XX1-XXX.

17

Hordeum vulgare, seedling-anatomy (*), 29, 203.

Hormodendron, disease caused by (*), 24, 359; origin of Cladosporium from, 24, 363 ; production of, from Cladosporium, 24,

363.

— and Cladosporium, relationship, 24, 367.

Hormones, function of, in regulating meta- bolism, 25, 507.

Horne, A. S. : Discharge of Antherozoids in Fossombronia and Haplomit.rium Hookeri (*), 23, 159.

— Preliminary Note on Spongospora Solani, Brunch., 25, 272.

Host and parasite, relationship, 25, 653, 661 (*).

- — tissue and infection drop, relationship, 30, 399.

Hottonia, anatomy (*), 25, 255 ; morpho- logy and life-history (*),25, 253 ; seedling- anatomy '(*), 25, 262.

Humaria granulata, cytology of ascus (*), 23,538.

— rutilans, cytology, 21, 307 ; ascocarp development (*), 22, 35 ; ascus formation (*), 22, 36 ; meiotic phase (*), 22, 37 ; mitosis (*), 22, 39 ; nuclear association, 22, 51 ; spore-formation (*), 22, 51.

Hume, E. M. M. : The Histology of the Sieve-tubes of Pteridium aquilinum, with some Notes on Marsilia quadrifolia and Lygodium dichotomum (*), 26, 573.

Hunter, C. : The Aerating System of Vicia Faba (*), 29, 627.

Hyacinthus candicans, question of hetero- typical reduction in somatic cells (*), 24, 781.

Hyalotheca dissiliens, nuclear division (*), 30, 379.

Hybrid ferns, cytology (*), 24, 191.

Hydnobolites, description, 23, 253.

— cerebriformis, description (*), 23, 253.

Hydnotrya, description, 23, 254.

— Tulasnei, description (*), 23, 254.

Hydrastis canadensis, vascular anatomy (*),

22,675.

Hydrochloric acid as a poison, reaction velocity, 23, 182.

Hydrogen ion, effect of temperature on the permeability of plant cells to (*), 29, 61 1.

Hydrotropism in roots of Lupinus albus, 29, 265.

Hypericum pulchrum, insect visitors, 22, 634.

Hypoderris, phyletic consideration (*), 26, 308.

I.

Iberis, spp., seedling-anatomy (*), 28, 717.

— amara, insect visitors, 22, 620.

Ibervillea sonorae, water-balance (*), 26, 81.

Idioplasmic theory of heredity, 22, 550.

Illicium floridanum, vascular anatomy (*),

22, 667.

Illicium religiosum, seedling-anatomy, 28, 710.

Incarvillea Delayvei, seedling-anatomy (*), 26, 74°-

Indigofera arrecta, cause of hardness in seed

(*), 21, 57.

Infection by Botrytis cinerea (*), 30, 389.

‘Infection drop’ and underlying tissue of host, relationship, 30, 399 ; presence of oxalate in, 30, 405 ; presence of toxin in, 30, 404.

Insect pests of Coniferae, 24, 267.

Insects and flowers in Great Britain, 22, 603.

Integument in Trigonocarpeae and Lageno- stomales, origin, 28, 73.

Intraxylary phloem in stems of Dicotyledons, origin and meaning (*), 29, 567.

Inula Helenium, seedling-structure, 28, 308.

Ion-action, exosmosis of electrolytes as a criterion of antagonistic (*), 29, 349.

Ipomoea, spore development (*), 25, 200.

Iron in Saccharomyces (*), 24, 69.

Irving, A. A. : The Beginning of Photo- synthesis and the Development of Chloro- phyll (*), 24, 805.

— The Effect of Chloroform upon Respira- tion and Assimilation (*), 25, 1077.

— see Priestley, J. H.

Isolation and Natural Selection, 25, 743.

Isomers, toxic action of, on vegetable cells, 23, 181.

J.

Jasminum nudiflorum, distribution of chloro- phyll in young shoots (*), 21, 437.

Java, Anthocerotaceae of (*), 21, 467 ; 22 9i, 33°-

Jeffrey, E. C.: On the Affinities of the Genus Yezonia (*), 24, 767.

— On the Structure of the Leaf in Creta- ceous Pines (*), 22, 207.

— Traumatic Ray-Tracheides in Cunning- hamia sinensis (*), 22, 593.

— and Cole, R. D. : Experimental Inves- tigations on the Genus Drimys (*), 30, 359-

Jesson, E. M. : On the Hairs of the To- mentum and Ovary in Rhododendron Falconeri, Hook, f., and Rhododendron Hodgsoni, Hook. f. (*), 29. 635. „

Johnson, J. C. : On well-marked Aerotropic Growths of Bacillus megatherium, 26, 949-

Jorgensen, I. : see Stiles, W.

Juglans, spp., anatomy of leaf-fail, 25, 92; seedling-structure (*), 30, 583.

— regia, anatomy of leaf-fail, 25, 93 ; mor- phology of ovule and female flower (*), 23, 623 ; gynoecium (*), 23, 625 ; ovule, 23, 628; seedling-structure, 30, 585.

Julianiaceae, relationship (*), 23, 336.

Juncaceae, parasitic root disease (*), 24,

1 8 Annals of Botany,

51 1 ; Sorosphaera Junci, a new parasitic disease of, 24, 236.

Juniperus, spp., seedling-anatomy (*), 22, 696.

Jurassic coniferous woods from Yorkshire, structure (*), 27, 533.

— Osmundaceae from New Zealand (*), 28, 471.

Justicia elegantula, morphology, 22, 201.

K.

Kashyap, S. R. : The Structure and De- velopment of the Prothallus of Equisetum debile, Roxb. (*), 28, 163.

Kauffman, C. H. : A Contribution to the Physiology of the Saprolegniaceae, with Special Reference to the Variations of the Sexual Organs (*), 22, 361.

Keene, M. L. : Cytological Studies of the Zygospores of Sporodinia grandis (*),

28, 455.

Kemp, H. P. : Note on the Action of Strychnine upon some Somatic Cells, 25, 1069.

— On the Question of the Occurrence of ‘Heterotypical Reduction’ in Somatic Cells (*), 24, 775-

Kendrickia Walkeri, secondary thickening (*), 21, 361.

Kent, plant distribution in woods of North- east (*), 25, 857.

Kershaw, E. M. : A Fossil Solenostelic Fern (*), 24, 683.

— Note on the Relationship of the Juliania- ceae (*), 23, 336.

— Structure and Development of the Ovule of Bowenia spectabilis (*), 26, 625.

— The Structure and Development of the Ovule of Myrica Gale (*), 23, 353.

— Further Observations on the Structure of the Ovules of Myricaceae and Allied Groups, 23, 692.

— see Stopes, M. C.

Kidston, R. : Note on the Petiole of Zygopteris Grayi, Will. (*), 24, 451.

Kisch, M. H. : The Physiological Anatomy of the Periderm of Fossil Lycopodiales (*), 27, 281.

Knight, M. : Anatomy of the Magnoliaceae,

29, 310.

Knight, R. C. : On the Use of the Poro- meter in Stomatal Investigation (*), 30, 57.

— see Laidlaw, C. G. P.

— and Priestley, J. H. : The Respiration of Plants under various Electrical Con- ditions (*), 28, 135.

Kochia trichophylla, seedling-structure, 26, 184.

Korthalsia, symbiosis with ants, 24, 459.

— ferox, branching, 23, 338.

Kusano, S. : Preliminary Note on Gastrodia elata and its Mycorhiza, 25, 521.

L.

La Riviere, H. C. C.: see Affourtit,

M. F. A.

Laboulbenia chaetophora and L. Gyrini- ! darum, cytology (*), 26, 325 ; antheridia, 26, 335; ascogenic cells (*), 26, 338; ascus (*), 26, 339 ; cell-wall and envelope (*), 26, 328 ; procarp (*), 26, 335 ; proto- plasmic bridges (*), 26, 330; protoplast (*), 26, 333 ; spores (*), 26, 343.

Laboulbeniales, cytology, 25, 649 ; ascus, 25, 652 ; antheridia, 25, 650 ; procarp, 25, 6.5 1 ; relation to host, 25, 653 ; spores, 25, 649 ; thallus, 25, 649.

Lachnea cretea, archicarp formation (*), 27, 554 ; ascogonial region (*), 27, 555 ; my- celium (*), 27, 554 5 trichogyne (*), 27, 554.

— stercorea, antheridium (*), 21, 353 ; j apothecium (*), 21, 352 ; cytology of ascus (*), 23, 541 ; fertilization (*), 21, 354; germination of sphores (*), 21, 350; my- celium (*), 21, 352 ; sporophyte (*), 21, 355 ; trichogyne (*), 21, 353.

Lactucasagittata, seedling-structure, 28, 322.

Lagenaria, spp., structure, 29, 572.

Lagenostoma, comparison with Conostoma H, 25, 35-

— Lomaxii, diagnosis, 25, 39.

— ovoides, diagnosis, 25, 39.

— Sinclairii, diagnosis. 25, 39.

Lagenostomales, origin of integument, 28,

73 ; pollination mechanisms, 25, 38.

Lagenostomeae, diagnosis, 25, 38.

Lagerstroemia indica, chemical peculiarity of dimorphic anthers (*), 28, 499 ; eco- logical relationships of flower, 28, 504 ; floral structure and anthesis, 28, 499 ; physiology of anthers (*), 28, 500.

Laidlaw, C. G. P., and Knight, R. C. :

A Description of a Recording Porometer and a Note on Stomatal Behaviour during Wilting (*), 30, 47.

Laminaria, embryonal stages (*), 25, 709.

— digitata, characters, 24, 178; culture, 24, 181 ; development (*), 24, 186 ; his- tology, 22, 319 ; reproduction (*), 24, 183.

— saccharina, anatomy (*), 22, 309 ; callus (*), 22, 315; cell-walls (*), 22, 312; characters, 24, 178 ; comparison with Macrocystis, 22, 317; culture, 24, 181 ; development (*), 24, 186; protoplasmic continuity (*), 22, 312 ; reproduction (*), 24, t 8 3 ; sieve-plate development (*), 22, 316; sieve-tubes (*), 22, 313.

Lamprothamnus alopecuroides, bulbils, 21, 62 ; description (*), 21, 61 ; distribution, 21, 6 r ; pro-embryo (*), 21, 64 ; tubercles, growth of (*), 21, 62.

Lang, W. H. : On a Suspensor in Helmin- thostachys zeylanica, 24, 611.

Index to Vols. XXI-XXX.

19

Lang, W. H. : On the Sporogonium of Notothylas (*), 21, 201.

— Studies in the Morphology and Anatomy of the Ophioglossaceae. I. On the Branch- ing of Botrychium Lunaria, with Notes on the Anatomy of Young and Old Rhizomes (*), 27, 203.

— Id. II. On the Embryo of Helmintho- stachys (*), 28, 19.

— Id. III. On the Anatomy and Branching of the Rhizome of Helminthostachys zeylanica (*), 29, 1.

Larix, effect of defoliation on growth and structure of wood of (*), 27, 621.

— europaea, bisporangiate strobilus (*), 27, 575 ; seedling-structure (*), 23, 210.

— leptolepis, seedling-anatomy, 23, 210; structure of ovule (*), 30, 193.

— occidentalis, seedling-structure, 23, 210.

Lastrea pseudo-mas, apogamy and apospory

in varieties of (*), 21, 175, 180.

Laurus, spp ., seedling-anatomy (*), 28, 712.

Lawson, A. A. : The Gametophytes and Embryo of Pseudotsuga Douglasii (*), 23, 163.

— The Gametophytes, Fertilization, and Embryo of Cephalotaxus drupacea (*),

21, 1.

• — The Gametophytes and Embryo of Scia- dopitys verticillata (*), 24, 403.

— The Gametophytes and Embryo of the Cupressineae, with special reference to Libocedrus decurrens (*), 21, 281.

Le Goc, M. J. : Observations on the Centri- petal and Centrifugal Xylems in the Petioles of Cycads (*), 28, 183.

Leaf anatomy of Cretaceous pines (*), 22, 207 ; of Osmundaceae (*), 30, 487.

Leaf-fall, anatomy and morphology of (*), , 25, 51; Acer pseudoplatanus, 25, 74; Ailanthus glandulosa, 25, 95 ; Baccharis halimifolia, 25, 78 ; Betula verrucosa (*), 25, 62 ; Broussonetia papyrifera, 25, 89 ; Carpinus Betulus, 25, 83 ; Castanea sativa (*), 25, 52 ; Catalpa Kaempferi (*), 25,

99 ; Ceanothus Gloire-de-Versailles, 25,

74 ; Celastrus articulatus (*), 25, 96 ; Celtis occidentalis (*), 25, 73 ; Cercis siliquastrum, 25, 82; Clerodendron tri- chotomum, 25, 81; Cornus Mas, 25, 95;

C. sanguinea (*), 25, 93 ; Corylus Colurna, 25, 81; Diospyrus virginiana, 25, 76; Ficus Carica, 25, 89 ; Forsythia Fortunei, 25, 77; Fraxinus excelsior, 25, 98; Gleditschia triacanthos (*),25, 79; Halesia tetraptera (*), 25, 76 ; Hibiscus syriacus,

25, 71 ; Juglans nigra, 25, 92 ; J. regia,

25, 93 ; J. rupestris, 25, 93 ; Ligustrum vulgare, 25, 72 ; Liriodendron tulipifera,

25, 100; Magnolia, 25, ico; Morus alba (*), 25, 90; M. nigra, 25, 90; Nyssa sylvatica,25,95 ; Phellodendron amurense,

25, 97 ; Platanus orientalis, 25, 86 ;

C 2

Populus balsamifera (*), 25, 69 ; Prunus Cerasus, 25, 84 ; P. communis-dulcis, 25, 85; P. virginiana, 25, 85; Pyrus flori- bunda, 25, 74; Quercus palustris, 25, 72 ; Rhus typhina (*), 25, 87 ; Ribes nigrum,

25, 76; R. sanguineum (*), 25, 57; Ro- binia pseudacacia, 25, 81 ; Salix caprea (*), 25, 62 ; Tilia europaea (*), 25, 60.

Leaf-trace, evolution of filicinean (*), 25, 167; relation to formation of compound rays in Dicotyledons (*), 25, 225. Lechmere, A. E. : see West, C.

Lee, D. G. : Notes on the Anatomy and Morphology of Pachypodium namaqua- num, Welw. (*), 26, 929.

Lee, Ernest: Biography, 29, 639.

— Observations on the Seedling Anatomy of certain Sympetalae. I. Tubiflorae (*),

26, 727.

— Id. II. Compositae (*), 28, 303.

— The Morphology of Leaf-fall (*), 25, 51-

Leersia oryzoides, seedling-anatomy, 29, 183.

Leidesia, description of genus and species,

27, 399; distribution, 27, 409; review of, 27, 386.

Leitch, I. : Some Experiments on the In- fluence of Temperature on the Rate of Growth in Pisum sativum (*), 30, 25. Lens-cells (*), 23, 460 ; in Mesembryanthe- mum pseudotruncatellum (*), 25, 1137. Lepidium sativum, seedling-structure (*),

27, 813.

Lepidodendron Veltheimianum, prothallus (*),24, 821.

Leptosyne Douglasii, seedling-structure (*),

28, 311.

Lewis, I. F.: The Life-history of Griffithsia Bornetiana (*), 23, 639.

— The Behaviour of the Chromosomes in Pinus and Thuja (*), 22, 530.

Libocedrus decurrens, archegonia (*), 21, 289 ; embryo (*), 21, 294 ; female game- tophyte (*), 21, 286 ; fertilization (*), 21, 292 ; male gametophyte (*), 21, 282 ; seedling-anatomy (*), 22, 702.

Lichen, Botrydina vulgaris, a primitive (*), 23, 579; structure and life-history of Verrucaria margacea, an aquatic (*), 28, 241.

Life, supposed origin in solutions of colloidal silica (*), 30, 383.

Light, perception of, in plants (*), 23, 459. Ligniera Alismatis, n. sp.f description, 28, 2 3 3.

— Bellidis, n. sp., description (*), 28, 232.

— Menthae, n. sp ., description (*), 28, 232. Ligustrum vulgare, anatomy of leaf-fall, 25,

72.

Lilium, anomalous bulbils (*), 28, 355 ; fer- tilization (*), 27, 1 1 1 ; genesis of male nuclei (*), 28, 265 ; heterotypic mitosis in embryo-sac mother-cell (*), 23, 343;

20

Annals of Botany .

heterotypic chromosomes in pollen mother- cells (*), 21, 314.

Lilium candidum, chromatin extrusion in pollen mother-cells (*), 29, 285 ; pollina- tion and respiratory activity, 21, 496. Lime-sulphur^bacteria of genus Hillhousia .(*), 27, 83.

Linaria, spp ., seedling-anatomy, 26, 738. Lindsaya, phylogeny (*), 27, 459.

Lindsey, M. : The Branching and Branch Shedding of Bothrodendron (*), 29, 223. Linnaea borealis, insect visitors, 22, 606. Linum catharticum, insect visitors, 22, 617.

— usitatissimum, proteases of seeds, 22, 109. Liquidambar styraciflua, seedling-anatomy,

28, 725.

Liriodendron tulipifera, anatomy of leaf-fall,

25, 100; seedling-anatomy (*), 28, 710. Listera cordata, insect visitors, 22, 616. Lodoicea sechellarum, germination of seed

(*), 24, 223.

Loiseleuria procumbens, insect visitors, 22, 628.

Lolium italicum, seedling-anatomy, 29, 184. Lophosoria, phyletic consideration (*), 26, 269.

— pruinata (*), 26, 279 ; anatomy of axis (*), 26, 281; hairs, 26, 286 ; leaf-structure (*), 26, 284; morphological discussion (*),

26, 291 ; sporangium (*), 26, 287 ; spore

and prothallus (*), 26, 291. .

Lotus corniculatus, seedling-structure (*),

27, 814.

Lower Cretaceous species of Schizaeaceae from eastern North America (*), 25, 193. Loxsoma, phylogeny (*), 27, 463.

Lunaria, spp., seedling-anatomy (*), 28, 718. Lupinusalbus, hydrotropism in roots, 29, 265. Lychnis, doubling of embryo-sac, pollen- tube, and embryo, 26, 243.

— Viscaria, seedling-structure, 26, 178. Lycopodiales, physiological anatomy of peri- derm of fossil (*), 27, 281 ; external mani- festation of periderm development, 27, 314; periderm (*), 27, 297; phellogen (*), 27, 287.

Lycopodium clavatum, young sporophyte : foot, 21, 221; leaf-structure, 21, 230; root-structure (*), 21, 213; stem-struc- ture, 21, 225.

— complanatum, young sporophyte : ex- ternal features (*), 21, 212 ; foot (*), 21, 219; leaf-structure (*), 21, 230; root- structure (*), 21, 213 ; stem-structure (*), 21, 222.

— Selago, roots (*), 22, 2 1 ; course through cortex (*), 22, 27; growth (*), 22, 26; origin (*), 22, 23 ; structure (*), 22, 29.

Lygodium, spp., structure of petiole (*), 30, 497-

— dichotomum, petiole-structure (*), 30, 501 ; sieve-tubes, 26, 581.

Lysimachia, spp., insect visitors, 22, 635.

M.

Macaranga, spp., relationship with ants (*), 24,470.

Macdougal, D. T. : The Water-balance of Desert Plants (*), 26, 71.

Macrocystis pyrifera, anatomy (*), 22, 299 ; callus (*), 22, 308 ; cell-wall (*), 22, 303 ; comparison with Laminaria saccharina,

22, 317; historical summary, 22, 291; protoplasmic continuity (*), 22, 303 ; sieve-tubes (*), 22, 304 ; sieve-plate de- velopment, 22, 316.

Macroglossum Alidae, antheridium (*), 28, 654; archegonium (*), 28, 655; cotyle- don (*), 28, 658; embryo (*), 28, 655; gametophyte (*), 28, 652 ; root (*), 28, 660, 663 ; sporangia (*), 28, 663 ; sporo- phyte (*), 28, 662 ; systematic position, 28,665.

Macrozamia spiralis, seedling-structure (*),

23, 438.

Madia sativa, seedling-structure, 28, 315.

Magnesium, role of (*), 21, 508, 532.

Magnolia, anatomy of leaf-fail, 25, 100.

' — spp., seedling-anatomy (*), 28, 709.

— tripetala, vascular anatomy, 22, 665.

Magnoliaceae, anatomy, 22, 665 ; 29, 310.

Malaxis paludosa, insect visitors, 22, 616.

Malcolmia littorea, seedling-anatomy, 28, 7 15.

Malt diastase, 24, 213.

Mamillaria, spp., seedling-anatomy (*), 24, 156.

Manganese sulphate, influence of, on growth of barley (*), 24, 578.

Mangham, S. : Observations on the Ozazone Method of locating Sugars in Plant Tissues (*), 29, 369.

* Mangroves, transpiration, 26, 436.

Marah, spp., germination of seeds (*), 30, 215.

Marattiaceae, development and structure of secretory tissues (*), 29, 209 ; mucilage canals (*), 29, 41 1 ; tannin ducts and sacs (*), 29, 417.

Marchantia, androgynous receptacles (*),

24, 349 ; spermatogenesis (*), 25, 299.

Marsh, A. S. : The Anatomy of some

Xerophilous Species of Cheilanthes and Pellaea (*), 28, 671.

Marsh vegetation (*), 23, 275; evaporation (*), 23, 287 ; mutual protection of shoots, 23, 303 ; specific differences, 23, 306 ; stratification of aerial shoots (*), 23, 276 ; temperature and evaporation, 23, 298, 301 ; xeromorphy (*), 26, 815.

Marsilia quadrifolia, histology of sieve-tubes, 26, 581.

Maslen, A. J. : The Structure of Meso- xylon Sutcliffii (Scott) (*), 25, 381.

— see Scott, D. H.

Massee, G. : On a New Genus of Ascomy- cetes (*), 23, 335.

21

Index to Vols. XXI-XXX.

Massee, G. : The Structure and Affinities of British Tuberaceae (*), 23, 243.

Matonia, sporangium (*), 29, 516 ; sporo- phyll (*), 29, 510.

Matricaria eximia, seedling-structure, 28, 316.

Matteuccia intermedia, description (*), 28, 367, phylogeny (*), 28, 415.

Matthews, J. R. : Note on Abnormal Flowers in Orchis purpurea, Huds. (*), 29, 155.

Matthiola tricuspidata, seedling-anatomy (*), 28,715.

McAllister, F. : Nuclear Division in Tetraspora lubrica (*), 27, 681.

McNicol, M. : On Cavity Parenchyma and Thyloses in Ferns (*), 22, 401.

— The Bulbils and Pro-embryo of Lampro- thamnus alopecuroides, A. Braun. (*), 21, 61.

Medicago, spp., seedling-anatomy, 28, 726.

Medullary phloem in stems of Dicotyledons, origin and meaning of (*), 29, 567.

— rays of Fagaceae, 26, 1124.

— — and annual ring of Quercus, evolution (*), 25, 983.

Medullation in Ophioglossaceae (*), 25, 537 ; in the Pteridophyta (*), 25, 555 ; 25,

1 206.

Medullosa : on M. centrofilis, a new species from the Lower Coal Measures (*), 28, j 251.

— centrofilis, affinities, 28, 261 ; diagnosis, 28, 263 ; general structure (*), 28, 252 ; leaf-base (*), 28, 259 ; leaf-trace (*), 28, 258; periderm (*), 28, 259; steles (*), 28, 254.

Megaceros, a new genus of Anthocerotaceae (*), 21, 469 ; description (*), 21, 484.

— antheridia (*), 21, 474 ; archegonia (*), 21, 476 ; chromophores (*), 21, 471 ; embryo (*), 21, 477 ; germination, 21, 482 ; sexual organs (*), 21,474 I thallus structure (*), 21, 473-

— relation to other Anthocerotaceae, 21, 482.

— Salakensis, n.sp ., description (*), 21, 484.

— Tjibodensis, n. sp., description (*),21,484.

Megalospermum, n. gen., description, 28, 91,

101.

— Wildi, n. sp., description (*), 28, 10 1.

Meiotic divisions in the microspore mother-

cells of Smilacina racemosa (*), 29, 471.

in Vicia Faba, behaviour of chromatin

in (*), 28, 633.

Mentha rotundifolia, insect visitors, 22, 606.

Menyanthes trifoliata, insect visitors, 22, 610.

Mercurialineae of South Africa, 27, 371.

Mercurialis, description of genus and species, 27, 397-

— procumbens, history of, 27, 371.

Mesarch structure in cotyledons of Scita-

mineae (*), 24, 485 ; in stamens of Par- nassia (*), 27, 492.

Mesembryanthemum, spp., seedling-structure (*), 26, 187.

— - pseudotruncatellum, lens-cells of epider- mis (*), 25, 1137.

Mesostrobus, a new genus of lycopodiaceous cones from the Lower Coal Measures (*),

23, 379.

— Scottii, n. sp., description (*), 23, 379. Mesoxylon, n. gen., description, 24, 237 ;

diagnosis, 25, 384.

— Lomaxii, n. sp., description, 24, 238 ; (*), 26, 1012, 1016.

structure: comparisons, 26, 1023;

cortex (*), 26, 1016 ; leaf-trace (*), 26, 1013 ; phloem and pericycle (*), 26, 1016; pith (*), 26, 1013; wood (*), 26, 1015.

— multirame, n. sp., description, 24, 238.

— platypodium, n . sp., description, 24, 239.

— poroxyloides, n. sp., description, 24, 237 ; (*), 26, 1017, 1023.

comparisons, 26, 1023; cortex (*),

26, 1021; leaf-trace (*), 26, 1019;

phloem and pericycle (*), 26, 1021 ; pith (*), 26, 1018; wood (*), 26, 1020.

— Sutcliffii, axillary buds (*), 25, 406 ; cor- tex and leaf-bases (*), 25, 404 ; description,

24, 237; diagnosis, 25, 409; general characters (*), 25, 385 ; leaf-traces (*),

25, 593, 398 ; pith (*), 25, 391 ; vascular tissues (*), 25, 398.

Mesozoic conifers, anatomy (*), 27, 533. Metabolism, function of hormones in regu- lating, 25, 507.

Metacedroxylon araucaroides, anatomy of wood (*), 27, 538.

— latiporosum, anatomy of wood (*), 27, 540.

Metaxyla, phylogeny (*), 27, 443. Metroxylon Rumphii, branching of, 23, 338.

— Sagus, branching of, 23, 338.

Metzgeria, vegetative reproduction (*), 24,

271.

— spp., gemmae of (*), 24, 273.

— disciformis, n. sp., description (*), 24, 291.

— oligotricha, n.sp., description (*),24, 280.

— uncigera, n. sp., description (*), 24, 276.

— vivipara, n. sp., description (*), 24, 287. Mexican species of Peperomia, 21, 147. Michell, M. R. : On the Comparative

Anatomy of the Genera Ceraria and Por- tulacaria (*), 26, mi.

Microchemical methods, 21, 515 ; reactions for pectic substances, 25, 747. Micrococca, the genus, 25, 575 ; descrip- tions of species, 25, 629 ; distribution, 25, 632 ; historical review, 25, 580 ; key to species, 25, 629; non-perulate Clao- xyla, 25, 578 ; perulate Claoxyla, 25 578 ; properties, 25, 638.

22

Annals of Botany .

Microsclerotia of Cladosporium, growth and development, 24, 366.

Microspermum, n. gen., description (*), 28, 90, 100.

— samaroides, description (*), 28, 100. Microspore mother-cells of Smilacina race-

mosa, meiotic divisions (*), 29, 471. Microtome, device for using blade of safety razors (*), 25, 273.

Migration of nuclei in Phragmidium viola- ceum (*), 29, 293.

Miller, E. C. : A Physiological Study of the Germination of Helianthus annuus (*), 24, 693.

— Id. II. The Oily Reserve, 26, 889. Mineral salts and chalk, acidity of Sphagnum

and its relation to, 29, 65.

Mimosa, diurnal variation of moto-excita- bility (*), 27, 759-

Mimulus luteus, seedling-anatomy, 26, 739. Mirabilis, spp., seedling-structure (*), 26, 193. Mitchell, G. : Contributions towards a Knowledge of the Anatomy of the Genus Selaginella, Spr. Part V. The Strobilus (*), 24, 19.

Mitosis, mechanism of 25, 851.

— in embryo-sac mother-cell of Lilium (*),

23, 343; in Oenothera (*), 26, 993 ; in pollen mother-cells of Acer negundo and Staphylea trifolia (*), 28, 115.

Mitrospermum, n.gen., description, 24, 503.

— compressum, attribution to Cordaites,

24, 504; characters (*), 24, 491 ; descrip- tion, 24, 503 ; inner flesh (*), 24, 496 ; nomenclature, 24, 501 ; nucellus and em- bryo sac (*), 24, 497 ; sarcotesta (*), 24, 495, 499; sclerotesta (*), 24, 492, 499; seed base (*), 24, 500; vascular supply (*), 24, 497, 501.

Miyake, K., and Yasui, K. : On the Game- tophytes and Embryo of Pseudolarix (*),

25, 639.

Mnium affine var. ciliaris, spermatogenesis (*), 29, 44 1 I androcvte (*), 29, 447 ; blepharoplast (*), 29, 450; chromosome formation (*), 29, 446 ; resting stages and prophase (*), 29, 445 ; sperm-cell vacuoles (*), 29, 449 ; sperm, final stages in de- velopment (*), 29, 452 ; telophases (*), 29, 446.

— hornum, meiotic divisions (*), 23,

146; nuclear division, 22, 328; (*), 23, 1 41 ; premeiotic development (*), 23, 143 ; sex-determination (*), 29, 433 ; spermatogenesis 24, 235; (*) 25, 422; spore-formation (*), 23, 141.

Mockeridge, F. A. : Some Conditions influencing the Fixation of Nitrogen by Azobacter and the Growth of the Organism,

26, 871.

Monocotyledons, origin (*), 22, 713; 25, 717 : cytology, 25, 738 ; degeneracy, 25, 720; distribution, 25, 719; embryo-

logy, 25, 738; geological evidence, 25, 718; inheritance of acquired characters, 25, 741 ; isolation and natural selection, 25, 743 ; percentages of natural orders, 25, 719; reproductive organs, 25, 737; structure, 25, 732; water requirements, 25, 724; water-storage organs, 25, 724. Monocotyledons and Cycads, 25, 725. Monocotyledonous Dicotyledons, 25, 727.

— embryo, morphology (*), 30, 509. Monodora Myristica, vascular anatomy, 22,

671.

Morus alba, anatomy of leaf-fall (*), 25, 90.

— nigra, anatomy of leaf-fall, 25, 90 ; mor- phology of ovule (*), 23, 632.

Moto-excitability in Mimosa, diurnal varia- tion (*), 27, 759-

Mottier, D. M. : Mitosis in the Pollen Mother-cells of Acer negundo, L., and Staphylea trifolia, L. (*), 28, 115.

— On the Prophases of the Heterotypic Mitosis in the Embryo-sac Mother-cell of Lilium (*), 23, 343.

— The Development of the Heterotypic Chromosomes in Pollen Mother-cells (*),

21, 309.

Mucilage canals of Marattiaceae, develop- ment and structure (*), 29, 41 1.

— glands of Undaria (*), 23, 613. Multinucleate cells in growing tissues (*),

29, 598, 599-

Multiseriate ray of Dicotyledons, origin (*), 25, 1005.

Murphy, P. A. : Morphology and Cytology of the Sexual Organs of Phytophthora erythroseptica, Pethyb. (Preliminary Note), 28, 735.

Mutation theory, 30, 560 ; and endemism,

30, 551.

Mycetozoa and Plasmodiophoraceae, rela- tionship (*), 28, 227.

Mycorhiza, historical account, 29, 99 ; of Amyelon radicans (*), 23, 603 ; of Asarum europaeum (*), 26, 769; of Gastrodia eJata, 25, 521.

Myosotis, spp., insect visitors, 22, 61 1. Myosurus minimus, seedling-anatomy, 28,

707.

Myrica Gale, nodules: bacteria, 26, 114; effect of, on growth of plants, 26, 115; nitrogen fixation, 26, 115 ; origin (*), 26, 1 1 4 ; structure (*), 26, 112.

ovule : morphology (*), 23, 629 ;

structure and development (*), 23, 353.

— spp., seedling-structure (*), 30, 581. Myricaceae, structure of ovule, 23, 692. Myristica, internal phloem (*), 22, 526. Myxomycetes, formation of capillitium (*),

28, 1.

N.

Names of weeds, common and local, 27, 163. Nandina domestica, vascular anatomy (*),

22, 674.

Index to Vols. XXI-XXX.

23

Narcissus, morphology of corona (*), 28, 541.

Narthecium Ossifragum, insect visitors, 22,

635.

Natural selection and geographical distribu- tion (*), 30, 1 ; and isolation, 25, 743.

Nectaries of Polygonum, extra floral (*), 23, 229.

Nemesia, spp.> seedling-anatomy, 26, 738.

Nereocystis Luetkeana, histology, 22, 320.

Neurospermum, n.gen., description (*), 28, 93, 103.

— Kidstoni, n. sp ., description (*), 28, 103.

New Brunswick, fossil plants from (*), 27,

248.

New Zealand, distribution of species in (*), 30, 437 ; early type of Abietineae from Cretaceous of (*), 30, m; Jurassic Os- mundaceae from (*), 28, 471.

Nicandra physaloides, seedling-anatomy (*), 26, 733.

Nicotiana alata, seedling-anatomy, 26, 736.

Nierembergia gracilis, seedling-anatomy, 26, 737.

Nigella, spp., seedling-anatomy, 28, 707.

Nilssonia orientalis, structure (*), 24, 389.

Nitrogen fixation by Azobacter, conditions, 26, 871.

Nopalea, seedling-structure (*), 24, 134,

Notothylas, sporogonium (*), 21, 201.

— javanicus (*), 22, 96; embryo (*), 22, 97 ; reproductive organs (*), 22, 97.

Nuclear division in Compositae (*), 26, 705 ; Desmids (*), 30, 379 ; Galtonia candicans (*), 24, 726 ; mechanism of (*), 24, 653 ; Mnium hornum (*), 23, 141 ; Preissia commutata (*),27, 661 ; Rusts, vegetative (*), 22, 331 ; Tetraspora lubrica (*), 27, 681.

— migration in Phragmidiufn violaceum (*), 29, 293.

Nuclei in Ascomycetes, conjugate (*),30,4i5.

Nucleolus, relation of, to chromatin bodies in Galtonia candicans (*), 23, 491.

— role of (*), 29, 288.

Nucleus, double nature of somatic, 23, 43 ; genesis of male in Lilium (*), 28, 265 ; organization of, in pollen mother-cells (*), 23, 19 ; studied under dark-ground illu- mination (*), 28, 615 ; unisexual plants, 23, 341.

Nutrient solution in water-culture, effect of concentration of, 29, 89 ; (*), 30, 77.

— solutions, 21, 511.

Nutritive elements to the plant-cell (*), 21, 501.

Nyctaginaceae, seedling-structure (*), 26, 189.

Nyssa sylvatica, anatomy of leaf-fall, 25, 95. O.

Obione portulacoides, seedling-structure (*) 26, 184.

Odontosoria, phylogeny (*), 27, 459. Oedogoniaceae in the Tropics, 21, 265. Oenothera, cytology (*), 23, 551 ; 24, 631; 25, 941 ; 26, 993.

anaphase (*), 26, 1000; chromosome

number (*), 26, 993 ; metaphase (*), 26, 999 ; prophase (*), 26, 995 ; reducing di- visions (*), 25, 941 ; 26, 1003 ; somatic mitoses (*), 26, 993 ; telophase (*), 26, 1000.

— biennis, reducing divisions in ovule (*),

24, 640 ; ' in pollen mother-cell (*), 24, 633; vegetative mitosis in ovule (*), 24,

643'

— gigas, archesporium (*), 25, 91 r ; chromo- some formation (*), 25, 955, 959 ; mitosis (*), 25, 921, 923, 930, 956, 957; nuclear extensions (*), 25, 915 ; pollen formation (*), 25, 909 ; pollen tetrads and pollen- grains (*), 25, 925 ; presynapsis (*), 25, 954 ; size of cells and nuclei (*), 25, 958 ; sterility (*), 25, 927 ; synapsis (*), 25, 9iT, 919) 954-

— grandiflora : chromosomes, formation of bivalent (*), 23, 557 ; mitosis (*), 23, 522, 560,563; synapsis (*), 23, 555; vegetative mitosis in anther (*), 552.

— Lamarckiana, chromosome formation (*),

25, 946; mitosis (*), 25, 948, 950; pre- synapsis (*), 25, 944; sterility of pollen (*), 25, 952 ; synapsis (*), 25, 945.

Oil of Helianthus annuus, chemical nature,

26, 894 ; reserve in germination, 26, 889.

Oil-containing seeds, proteases of, 22, 104. Olive, E. W. : Sexual Cell Fusions and Vegetative Nuclear Divisions in the Rusts

(*), 22, 331.

Oliver, F. W. : Note on the Palaeozoic Seeds, Trigonocarpus and Polylopho- spermum (*), 21, 303.

— On Physostoma elegans, Williamson, an Archaic Type of Seed from the Palaeozoic Rocks (*), 23, 73.

— and Salisbury, E. J. : On the Structure and Affinities of the Palaeozoic Seeds of the Conostoma Group (*), 25, 1.

Olpidiopsis (*), 26, 209 ; description of species, 26, 230 ; infection of host (*), 26, 215; nuclear division, 26, 229; sexual organs (*), 26, 219, 227; sporangium development (*), 26, 217, 255 ; zoospores (*)> 26, 213.

— luxurians, n. sp., description, 26, 231.

— Saprolegniae, description, 26, 232.

— vexans, n. sp description, 26, 231. Onoclea, phyletic consideration, 26, 300. Onopordon tauricum, seedling-structure,

28, 320.

Ophioglossaceae, morphology and anatomy (*), 24, 1; 27, 203; 28, 19; 29? 1; primary xylem and origin of medullation (*), 25, 537.

24

Annals of Botany .

Ophioglossaceous spike, morphology, 25, 291.

Ophioglossum granulatum, nature of the Cretaceous plant (*), 25, 903.

— palmatum, anatomy of stock and leaf- trace (*), 25, 278 ; morphology of fertile spikes (*), 25, 282; morphology of the Ophioglossaceous spike, 25, 291.

— simplex, morphology, 22, 327.

Opuntia, j pp., seedling-structure (*), 24,

129.

Orchis purpurea, abnormal flowers (*), 29, 155.

Orthoheliotropic organs (*), 23, 470.

Osborne, T. G. B. : A Preliminary Note on the Life-history and Cytology of Spongo- spora subterranea, Wallroth, 25, 271.

— Spongospora subterranea, (Wallroth) Johnson (*), 25, 327.

— The Lateral Roots of Amyelon radicans, Will., and their Mycorhiza (*), 23, 603.

Osmundaceae, anatomy (*), 25, 525 ; 30, 487; foliar gaps (*), 24, 107 ; leaf-structure (*), 30, 487 ; leaf-trace structure (*), 25, 529; sporeling-structure (*), 25, 528.

-—- Jurassic from New Zealand (*), 28, 471.

— regalis, ‘ mixed pith ’ in an anomalous stem (*), 28, 35 t.

Ostenfeldiella, n. gen., description, 28, 648.

— Diplantherae, n. sp., biology (*), 28, 646 ; diagnosis, 28, 648.

Otidea aurantia, cytology (*), 22, 465.

Overton, J. B. : On the Organization of the Nuclei in the Pollen Mother-cells of Cer- tain Plants, with Especial Reference to the Permanence of the Chromosomes (*), 23, 19.

Ovule, of Angiosperms, consideration of, 23, 633 ; of Bowenia spectabilis, structure and development (*), 26, 625 ; of Myrica Gale, structure and development (*), 23, 353-

Oxalate, presence of in ‘ infection drop 5, 30, 4°5-

Oxalis acetosella, insect visitors, 22, 617.

Oxygen, relation of reproduction in Saccharo- myces to supply of free, 28, 197.

Ozazone method of locating sugars in plant tissues (*), 29, 369.

P.

Pachyphloeus, description, 23, 255.

— citrinus, description, 23, 255.

— conglomerate, description, 23, 255.

— melanoxanthus, description (*), 23, 255.

Pachypodium namaquanum, anatomical rela- tionships, 26, 939; leaf-structure (*), 26, 935 ; protuberances and species (*), 26, 93 3, 938 ; stem-structure (*), 26, 931.

Paeonia, spp., seedling-anatomy (*), 28, 707 ; vascular anatomy (*), 22, 663.

Paeoniaceae, vascular anatomy (*), 22, 663.

Paine, S. G. : On the Supposed Origin of Life in Solutions of Colloidal Silica (*),

30,383.

— see Blackman, V. H.

Palaeobotanical reconstruction, methods of,

(*), 27,273.

Palaeostachya vera, anatomy (*),. 21, 369 ; axis (*), 21, 372 ; bracts (*), 21, 377 ; cone affinities, 21, 381 ; cortex (*), 21, 372 ; general features (*), 21, 371 ; medulla (*), 21, 373 ; sporangiophore (*), 21, 375, 378 ; spores, 21, 379 ; vascular system (*), 21, 374.

Palaeozoic seeds, structure (*), 21, 89.

of the Conostoma type, structure and

affinities (*), 25,

Palisade cells, cause of formation, 26, 842 ; effect of environment on production (*),

26, 834.

Palmellaceae, Coccomyxa subellipsoidea, a new member of (*), 23, 573.

Palms, aquatic origin, 25, 723; branching in (*), 21, 416 ; 23, 338.

Panama disease (*), 24, 488 ; 25, 243, 353 ; enzymes, 25, 357 ; haustoria (*), 25, 356 ; hvphae, 25, 358 ; mycocecidia (*), 25, 357 ; pegmatia (*), 25, 353 ; pycnidia (*), 25, 356; spores (*), 25, 355.

Pandanus, antipodal cells (*), 25, 781 ; embryo (*), 25, 784 ; embryo-sac (*), 25, 776 ; fertilization (*), 25, 782 ; ovule (*), 25, 775 ; pollen (*), 25, 776.

— spp., embryo-sac, 22, 330; (*), 25, 776, 779-

Papain, 23, 1.

Papaver, spp., seedling-anatomy, 28, 719. Papayotin, 23, 1.

Paracupressinoxylon cedroides, anatomy of wood (*), 27, 537-

— cupressoides, anatomy of wood (*), 27, 538.

Paradenocline, review of, 27, 388. Paraphyllocladoxylon araucaroides, anatomy of wood (*), 27, 536.

— eboracense, anatomy of wood (*), 27, 536. Parasite and host, relationship (*), 25, 653,

661.

Parasitism in Exocarpus, root (*), 24, 667.

— physiology of, 29, 313 ; (*), 30, 389, 399. Parasynapsis and telosynapsis, 26, 623. Parkin, J. : see Arber, E. A. N.

Parnassia, affinities, 27, 500 ; anatomy of

stamens of Indian species (*), 29, 159; structure of androecium (*), 27, 491.

— palustris, insect visitors, 22, 626. Pearson, H. H. W. : On the Embryo of

Wehvitschia (*), 24, 759.

— On the Microsporangium and Microspore of Gnetum, with some Notes on the Structure of the Inflorescence (*), 26, 603.

Pectic substances, microchemical reactions, 25, 747.

Index to Vols.

XXI-XXX.

Pediastrum Boryanum, cell-structure and zoospore formation (*), 30, 467.

Pelargonium zonale, pollination and respira- tory activity, 21, 491.

Pellaea, anatomy of xerophilous species (*), 28, 671.

Pellia epiphylla, spermatogenesis (*), 25, 436.

Peloria in Saintpaulia ionantha (*), 26, 946.

Peltaria alliacea, seedling-anatomy, 28, 717.

Penaeaceae, embryo (*), 23, 369; embryo- sac, 22, 329; (*), 23, 364; endosperm (*), 23, 367 ; ovule (*), 23, 364.

Peniston, A. : see Wager, H.

Peperomia, geophilous species: geographical distribution, 21, 158; history, 21, 139; inflorescence, 21, 145 ; key to species, 21, 147; leaves (*), 21, 143; Mexican and Central American species, 21, 147 ; mor- phology (*), 21, 141 ; revision (*), 21, 139; seedlings (*), 21, 146; systematic arrangement, 21, 146.

— bracteata, description (*), 21, 155.

— campylotropa, n. sp ., description, 21, 156.

— claytonioides, description (*), 21, 154.

— cyclaminoides, n. sp., description (*), 21, 149.

— falsa, description (*), 21, 151.

— Gaudichaudii, n. sp., description, 21, 154.

— gracillima, description, 21, 155.

— macandra, description, 21, 156.

— minuta, n. sp., description (.*), 21, 150.

— monticola, description (*), 21, 157.

— parvifolia, description, 21, 149,

— peruviana, description, 21, 150.

— rupiceda, description (*), 21, 157.

— umbilicata, description, 21, 1 50.

— verruculosa, n. sp., description, 21, 149.

Peranema, phyletic consideration, 26, 306.

— cyatheoides, external characters (*), 26, 247; internal structure (*), 26, 248; prothallus development (*), 30, 107 ; sorus and sporangia (*), 26, 252 ; development (*), 30, 1 01 , 104.

Pereskia, spp., seedling-structure (*), 24, 126.

Pericystis, n. gen., description, 26, 798.

— alvei, n. sp., a beehive fungus (*), 26, 795, 798.

Periderm formation in filicinean petioles, 24, 61 1.

— of fossil Lycopodiales, physiological anatomy (*), 27, 281.

Perithecium of Polystigma rubrum, develop- ment (*), 26, 761.

Permeability of cells to the hydrogen ion, effect of temperature on (*), 29, 611.

— of protoplasm, measured by rate of shrinkage of turgid tissues (*), 30, 283.

to water, influence of temperature (*),

30, 283.

25

Permeability, studies in, 29, 349 ; (*), 29, 611 ; (*), 30, 223.

Petch, T. : A Preliminary Note on Sclero- cystis coremioides, 22, 116.

— Note on the Biology of the Genus Septo- basidium, 25, 842.

— The Genus Endocalyx, Berkeley and Broome (*), 22, 389.

Petunia violacea, seedling anatomy, 26, 737.

Peuce Lindleii, description (*), 30, 117.

Peziza vesiculosa, cytology (*), 22, 467.

Phacelia tanacetifolia, seedling-structure, 27, 81 r.

Phellodendron amurense, anatomy of leaf- fail, 25, 97.

Pherosphaera Fitzgeraldi, anatomy (*), 30, 311.

Philadelphia coronarius, insect visitors, 22, 621.

— - grandiflorus, seedling-anatomy, 28, 724.

Phloem, general anatomy (*), 22, 263.

— of Angiosperms, histology (*), 22, 245 ; of Myristica (*), 22, 526.

— origin and meaning of medullary phloem in stems of Dicotyledons (*), 29, 567.

— parenchyma cells (*), 22, 264.

Phosphorus in Saccharomyces (*), 24, 70 ;

role of, 21, 504, 522.

Photosynthesis, beginning of (*), 24, 805 ; photo-electric theory of, 22, 1 17.

Phragmidium violaceum, nuclear migrations (*), 29, 293-

Phyllocactus Hookeri, seedling-structure

n, 24, 136.

Phylloglossum, sporeling attached to pro- thallus (*), 30, 605.

— Drummondii, branching (*), 30, 328 ; morphology (*), 24, 336; 30, 316, 318; vascular anatomy, 30, 318.

Phyllotaxy in Fraxinus excelsior, abnormal, 29, 307.

Phylogeny of Angiosperms (*), 28, 547 ; of Filicales (*), 26, 269; 28, 363; 29,

495-

Physostoma, comparison with Conostoma, 25, 35.

— elegans, abortive seeds (*), 23, 100 ; diagnosis, 23, 101 ; epidermis (*), 23, 87 ; ground tissue of integument (*), 23, 89 ; integument (*), 23, 85 ; megaspore mem- brane (*), 23, 100 ; nucellus (*), 23, 106 ; pollen chamber (*), 23, 90 ; pollen-grains (*), 23, 93 ; pollination (*), 23, 91 ; pro- thallus (*), 23, 100; secretory sacs (*), 23, 97 ; seed organization (*), 23, 75 ; series of transverse sections (*), 23, 79 ; spermatozoids, 23, 93 ; systematic posi- tion's, 108; tapetum (*), 23, 98 ; varia- tion (*), 23, 83 ; vascular system (*), 23, 95.

Physostomeae, diagnosis, 25, 37.

Phytolacca, spp., seedling-structure, 26, 187.

Phytolaccaceae, seedling-structure, 26, 187.

26

Annals of Botany .

Phytophthora erythroseptica, morphology and cytology of sexual organs, 28, 735.

Picea, spp., seedling-structure (*), 23, 196.

Picris echioides, seedling-structure, 28, 322.

Pilacre and Roesleria pallida, relationship (*), 30, 4 1 1.

Pilocereus, spp ., seedling-structure (*), 24, 141.

Pinus, chromosome formation and distribu- tion (*), 22, 536 ; homotype mitosis (*), 22, 540 ; prophase (*), 22, 530.

— leaf-structure of Cretaceous species (*), 22, 207.

— spp., seedling-structure (*), 23, 199.

— granulata, n. comb., description (*), 25, 9°5.

— Inops, development of Sanio’s bars (*), 30, 419.

— maritima, abnormal prothallus (*), 26, 943-

— yezoensis, n. sp., description, 24, 400 ; leaf-anatomy (*), 24, 399.

Pisum sativum, heterotypical reduction in somatic cells (*), 24, 793 ; influence of temperature on rate of growth (*), 30, 25.

Pitostrobus macrocephalus, a Tertiary cone showing ovular structures (*), 30, 529.

— - — anatomical details : bract scales (*), 30, 535 ; cone axis (*), 30, 533 ; female gametophyte and embryo (*), 30, 541 ; integument (*), 30, 537 ; male gameto- phyte (*), 30, 542 ; nucellar column (*), 30, 540; nucellus (*),30, 538; ovule (*), 30, 537 ; ovuliferous scale (*), 30, 536.

— — diagnosis, 30, 547.

Pittosporum crassifolium, seedling-anatomy

(*), 28, 725.

Pityoxylon with marginal tracheides, a Cre- taceous (*), 25, 315.

Plagiogyria, anatomy (*), 24, 428 ; descrip- tion (*), 28, 366 ; external characters (*), 21, 426; phylogeny (*), 24, 423; 28, 415 ; sorus and sporangia (*), 24, 438.

Planoxylon, n. gen ., diagnosis, 30, 119.

— Hectori, comparison with other fossils, 30, 1 16; description (*), 30, m ; diag- nosis, 30, 120.

— Lindleii, diagnosis, 30, 120.

Plant communities of farm land, 30, 16 1.

— formations from the arid regions of Western China, 26, 1105.

Plantago lanceolata, insect visitors, 22, 648 ; proliferous form of scape (*), 30, 353.

Plasmodiophoraceae and their relationship to Mycetozoa and Chytrideae (*), 28, 227.

— Ostendfeldiella, a new genus of (*), 28, 643.

Plasmolysis studied under dark-ground illumination (*), 28, 618.

Platanus, spp., seedling-anatomy, 28, 725.

— orientalis, anatomy of leaf-fall, 25, 86.

Platycerium, anatomy (*), 29, 507 ; sporan- gia (*), 29, 519 ; sporophyll (*), 29, 510.

Platycerium, grape sugar excreted by (*),

25, 1205.

— biforme, relationship with ants, 24, 469. Platyspermum, n. gen., description (*), 28,

87, 95*

— elongatum, description (*), 28, 96.

— Kidstoni, n. sp., description (*), 28, 96.

— multistriatum, description (*), 28, 96.

— rugosum, n. sp., description (*), 28, 96. Platystemon, californicus, seedling-anatomy,

28,719*

Plectocomia branching, 21, 417. Podocarpeae, affinities (*), 27, 63 ; embryo- logy (*), 26, 484 ; 27, 54 ; external features, 26, 445 ; female fructification (*), 26, 462 ; 27, 41 ; female gametophyte (*), 26, 477 ; 27, 54 ; fossils, 26, 486 ; genera and species, 26, 445 ; geographical distribution, 26, 485 ; inter-relationship of genera and species (*), 26, 489 ; leaf (*),

26, 453 ; male cone (*), 26, 459 ; 27, 41; male gametophyte (*), 26, 479; 27, 52; phylogeny, 26, 496; root, 26, 458 ; root nodules, formation and physiology (*), 26, 80 r ; seedling-structure (*), 22, 694 ; 26, 485; stem (*), 26, 449.

Podocarpoxylon, anatomy of wood (*),27, 542 . Podocarpus, development of female strobilus (*), 26, 5i5.

— bracteata, strobilus : histology (*), 26, 548 ; morphology, 26, 548.

— chinensis, seedling-anatomy (*), 22, 694.

— dacrydioides, strobilus : histology (*), 26, 532 ; morphology (*), 26, 532.

— elata, strobilus: histology (*), 26, 545 ; morphology (*), 26, 544.

— ferruginea, strobilus : histology (*), 26, 542 ; morphology (*), 26, 541.

— Hallii, strobilus : histology (*), 26,

555 I morphology, 26, 555.

— imbricata, strobilus : histology (*), 26, 527; morphology (*), 26, 525.

— neriifolia, strobilus : histology (*), 26, 550 ; morphology, 26, 549.

— nivalis, strobilus (*), 26, 557.

— polystachya, strobilus : morphology (*), 26, 546 ; histology (*), 26, 546.

— saligna, description, 26, 551.

— spicata, strobilus : histology (*), 26, 540 ; morphology (*), 26, 537.

— spinulosus, structure (*), 24, 305 : female fructification (*), 24, 310 ; leaf, 24, 307 ; male cone (*), 24, 307 ; pollen (*), 24, 308 ; stem, 24, 306.

— Totara, strobilus : histology (*), 26, 553 ; morphology (*), 26, 551.

— vitiensis, strobilus (*), 26, 533 ; histo- logy (*), 26, 536; morphology (*), 26,534.

Podophyllum Emodi, seedling-anatomy, 28, 708.

— peltatum, heterotypic chromosomes in pollen mother-cells (*), 21, 310 ; vascular anatomy (*), 22, 673.

Index to Vols. XXI-XXX.

Podostemaceae and Tristichaceae, origin of, 2 9, 299.

Poisons, action of, on Chlamydomonas and other vegetable cells, 23, 181. Pollen-grains of Fuchsia, supernumerary, 21,

305.

Pollen mother-cells, chromatin extrusion in Lilium candidum (*), 29, 285 ; hetero- typic chromosomes (*), 21, 309 ; walls (*), 23, 494.

— of Calycanthus floridus (*), 23, 30 ; of Richardia africana (*), 23, 34 ; of Thalic- trum purpurascens (*), 23, 21.

Pollen-presentation mechanism in the Com- positae (*), 29, 457. .

Pollination, influence of, on respiratory ac- tivity of gynoecium, 21, 487.

— insect visitors of flowers of Clova Moun- tains, 22, 603.

— mechanisms of Lagenostomales (*), 25, •38.

Polyalthia suberosa, vascular anatomy (*),

22, 670.

Polycarpon tetraphyllum, seedling-structure, 26, 1 81. #

Polygonum, spp., extra-floral nectaries of (*),

23, 229.

— viviparum, insect visitors, 22, 608. Polylophospermum, note on (*), 21, 303. Polymorphism of organism causing root-

tubercles of Alnus and Elaeagnus (*), 26, 119.

Polyphagus Euglenae, chromidial fusion, 27, 184; chromidia (*), 27, 182; cysts, 27, 179; effect on Euglena, 27, 175 ; germi- nation of zygote (*), 27, 185; nuclear division (*), 27, 189; occurrence and habit, 27, 174 ; relationships, 27, 192 ; reproduction (*), 27, 178 ; thallus-struc- ture (*), 27, 176 ; zoospores (*), 27, 177 ; zygote formation (*), 27, 179.

Polypodium aureum, cytology (*), 24, 193.

— Schneideri, cytology (*), 24, 200.

— sinuosum, symbiosis with ants, 24, 465.

— vulgare, cytology (*), 24, 195.

var. elegantissimum, cytology (*), 24,

198.

Polystigma rubrum, ascogonia (*), 26, 763; mycelium (*), 26, 762 ; spermogonia (*), 26, 763.

Poly trichum, abnormal cell fusion in arche- gonium and spermatogenesis (*), 27,

115.

Populus, structure of North American (*), 26, 165.

— balsamifera, anatomy of leaf-fall (*), 25,69. Porella, spermatogenesis (*), 25, 299. Porometer, a recording (*), 30, 47.

— in stomatal investigation, use of (*), 30, 57-

Poroxylon Sutcliffi, description, 24, 237. Portulaca oleracea, seedling-structure (*), 26, 177.

27

Portulacaceae, seedling-structure (*), 26, 175-

Portulacaria and Ceraria, comparative ana- tomy «(*), 26, 1111.

Potassium, role of (*), 21, 502, 517.

Potato leaves, bacterial disease, 26, 133 ; histology of affected plants (*), 26, 135 ; infection (*), 26, 143 ; symptoms and mode of occurrence, 26, 133 ; the para- site (*), 26, 137.

— tubers, cause of ‘blindness ’, 26, 129.

Potentilla, spp., insect visitors, 22, 624;

seedling-anatomy, 28, 723.

Poulton, E. M. : The Structure and Life- history of Verrucaria margacea, Wahl., an Aquatic Lichen (*), 28, 241.

Prain, D. : A Review of the Genera Ery- thrococca and Micrococca, 25, 575.

— The Mercurialineae and Adenoclineae ot South Africa, 27, 370.

Prankherd, T. L. : Notes on the Occur- rence of Multinucleate Cells (*), 29, 599.

— On the Structure and Biology of the Genus Hottonia (*), 25, 253.

Preissia commutata, mitosis in vegetative cells (*),27,66i ; sporogenesis (*), 27,670.

Prepinus, description, 24, 398.

— japonicus, n. sp., description, 24, 398; leaf-structure (*), 24, 396.

Price, S. R. : Some Studies on the Structure of the Plant Cell by the Method of Dark- ground Illumination (*), 28, 60 r.

Priestley, J. H. : see Knight, R. C.

— and Irving, A. A. : The Structure of the Chloroplast considered in Relation to its Function (*), 21, 407.

Primula, chromosome numbers, 26, 359 ; cytology (*), 26, 357 ; premeiotic divi- sions (*), 26, 361.

— floribunda, cytology (*), 26, 363.

isabellinax P. kewensis, cytology, 26,

377-

— kewensis, seedling-form, cytology (*), 26, 372.

type, cytology (*), 26, 370.

farinosa, cytology (*), 26, 376.

— verticillata, cytology (*), 26, 369.

x P. floribunda, cytology, 26, 376.

Prince Edward Island, fossil plants from (*),

27, 244.

Pro-embryo and bulbils of Lamprothamnus alopeciiroides (*), 21, 61.

Proliferous form of scape of Plantago lan- ceolata (*), 30, 353.

Propagation in Drosera, vegetative (*), 29, 308.

Prophase of first division, conjugation of chromosomes in (*), 23, 46.

— of heterotypic mitosis in the embryo-sac mother-cell of Lilium (*), 23, 343.

Protea Lepidocarpon, embryo-sac, 23, 161.

Proteases of oily seeds, separation, 22, no.

— of plants, 22, 103 ; 23, 1 ; 24, 213.

28

Annals of Botany.

Proteins, role of, in absorption of acids by potato cells, 30, 233.

Prothallus of Equisetum debije (*), 28, 163 ; of Lepidodendron Veltheimianum (*), 24, 821 ; of Pinus maritima, abnormal (*), 26, 943.

— production of male in sporangia of Todea

(*), 22,231.

Protobrachyoxylon eboracense, anatomy of wood (*), 27, 541.

Protococcales, cytology (*), 30, 459, 467. Prunus, spp., gummosis (*), 25, 107, 116; leaf-fail anatomy, 25, 84 ; seedling-struc- ture, 27, 799 ;.(*), 28, 722.

— Padus, insect visitors, 22, 608. Pseudolarix, embryo (*), 25, 644 ; female

gametophyte (*), 25, 641 ; male gameto- phyte (*), 25, 640.

— Kaempleri, seedling-structure, 23, 212. Pseudotsuga Douglasii, archegonia (*), 23,

170 ; embryo (*), 23, 1 75 ; female game- tophyte (*), 23, 168 ; fertilization (*), 23, 172 ; male gametophyte. (*), 23, 163. Psilotaceae, systematic position, 24, 383. Psilotum flaccidum, morphology (*), 24,

374 ; structure (*), 24, 375-

— triquetrum, abnormal sporangia ■(*), 22,

525.

— and Sphenophyllum, comparison, 22, 78. Pteridium aquilinum, histology of sieve-

tubes (*), 26, 573.

Pteridophyta,medullation (*), 25, 555, 1206;

xylem elements (*), 25, 745.

Pteridosperm possessing Sphenopteris type of foliage (*), .22, 57.

Pteris aquilina, wound reactions of petioles (*), 30, 127.

— droogmantiana, apogamy, 24, 487. Pterocarya rhoifolia, seedling-structure (*),

30, 587.

Pterospermum, n. gen., description (*), 28, 93) 104-

— anglicum, n. sp., description (*), 28, 104. Pterostylis, life-history (*), 23, 265.

Puccinia coronifera, 21, 459 ; histology, 21,

460.

— dispersa, 21, 454 ; haustoria (*), 21, 455 ; histology (*), 21, 454; hyphae, 21, 455; nuclei, 21, 455.

— glumarum, haustoria (*), 21, 453 ; histo- logy, 21, 45° 5 nuclei (*), 21, 453 ; septa- tion of hyphae, 21, 452 ; spore-formation, 21, 453 ; spore-germination (*), 21, 451.

— graminis Tritici, 21, 444 ; histology (*), 21, 4+5-

— malvacearum, effect of external stimuli on sporidia of .(*), 28, 331.

— Phlei-pratensis, germination of spore (*), 21, 447; haustoria (*), 21, 448 ; nuclei (*), 21, 448.

— simplex, 21, 457; haustoria, 21, 459; histology (*), 21, 457 ; hyphae, 21, 458 ; nuclei, 21, 459.

Puccinia Sorghi, description (*), 21, 461.

— triticina, 21, 456 ; histology (*), 21, 456. Pupalia purpurea, seedling-structure, 26,

182.

Pyrola, spp., insect visitors, 22, 616.

Pyrus, spp., insect visitors, 22, 621, 638; seedling-anatomy (*), 28, 723.

— floribunda, anatomy of leaf-fall, 25, 74.

Qi.

Quercus, evolution of annual ring (*), 25, 984 ; of medullary ray (*), 25, 992 ; tan- nin of heart-wood, 29, 407.

— spp., seedling-structure, 30, 591.

— palustris, anatomy of leaf-fall, 25, 72.

R.

Rachiopteris cylindrica, description (*), 29, 532 ; discussion, 29, 553 ; distribution and horizon, 29, 532 ; organs in association with (*), 29, 551.

Radiospermum, n. gen., description (*), 28, 92, 1 o 1 .

— elongatum, n. sp., description (*), 28,ioi.

— grande, n. sp., description (*), 28, 101.

— inflatum, description (*), 28, 101.

— Kidstoni, description (*), 28, 102.

— marginatum, description (*), 28, 102.

— ornatum, n. sp., description (*), 28, 102.

. — ovatum, description (*), 28, 87, 102.

— perpusillum, description (*), 28, 102.

— problematicum, n. sp., description (*), 28, 103.

— Sinclairi, description (*), 28, 103.

Ranales, seedling-anatomy (*), 28, 695;,

vascular system (*), 22, 651.

Ranunculaceae, vascular anatomy (*), 22, 657.

Ranunculus, spp., insect visitors, 22, 621; seedling-anatomy (*), 28, 704.

Raphanus Raphanistrum, insect visitors, 22, 604.

Rayner, M. C. : Obligate Symbiosis in Calluna vulgaris (*), 29, 97.

Rays of dicotyledons, origin of multiseriate (*), 25, 1005 ; relation of leaf-trace to formation of compound (*), 25, 225.

— of Quercus, evolution of medullary (*), 25, 992.

Ray-tracheides in Cunninghamia sinensis

(*), 22, 593-

Reconstruction, methods of palaeobotanical (*), 27, 273.

Reduction divisions of Oenothera biennis (*), 24, 631.

Reed, H. S.: The Value of Certain Nutri- tive Elements to the Plant Cell (*), 21,

Soi-

Reed, T. : On the Anatomy of some Tubers (*), 24, 537-

— Some Points in the Morphology and Physiology of Fasciated Seedlings (*), 26,

389-

Index to Vols. XXI-XXX.

Reed, T. : The Nature of the Double Spireme in Allium Cepa (*), 28, 271.

Rees, B. : see Wager, H.

Rehmannia angulata, seedling-anatomy, 26, 740.

Renealmia racemosa, seedling-anatomy, 29, 212.

Reproduction in Indian species of Selagi- nella, vegetative (*),28,685; inMetzgeria, vegetative, 24, 271.

(Reseda, spp ., seedling-anatomy, 28, 719.

Resistance to flow of transpiration current, 24, 98.

Respiration, carbon dioxide output by seeds, 22, 434 ; effect of anaesthetics, 22, 440 ; (*), 25, 1078; effect of diminished pres- sure on initial output of carbon dioxide, 22, 439.

— of gynoecium, influence of pollination on,

21, 487.

— of seeds, endospermic, 22, 415; Hor- deum, 22, 419 ; Ricinus, 22, 432 ; Zea,

22, 427.

— in darkness, quantitative results, 27, 433-

— under various electrical conditions (*), 28, 135.

— Temperature and, 22, 433.

Respiratory enzymes, 22, 443.

— exchanges of leaves, effect of chloroform on (*), 27, 697.

— quotient, 22, 443.

Rhabdocarpus, description (*), 28, 87, 99.

— Lillieanus, n. sp ., description (*), 28, 99-

Rheum undulatum, morphologv of ovule (*), 23, 632.

Rhipsalis, spp., seedling-structure (*), 24, 142.

Rhodesia, bio-histological notes on some new species of Fuirena, Hesperantha, and Justicia (*), 22, 187.

Rhododendron, spp., hairs of tomentum and ovary (*), 29, 635.

Rhodotypus kerrioides, seedling-anatomy,

28, 723-

Rhoeadales, seedling-anatomy (*), 28, 695.

Rhoeo discolor, cytology, 22, 117.

Rhus typhina, anatomy of leaf-fail (*), 25, 87.

Ribes, spp., anatomy of leaf-fall (*), 25, 57, 76 ; insect visitors, 22, 610.

Riccia Frostii, diagonal division (*), 27, 523 ; general characters (*), 27, 51 1 ; sexual organs, development (*), 27, 515; sperm development (*), 27, 524 ; spermo- genous cell (*), 27, 522 ; spore develop- ment (*), 27, 520; sporogenesis (*), 27, 518; sporophyte (*), 27, 517; thallus- structure, 27, 512.

Rice disease caused by Ustilaginoidella graminicola (*), 25, 367.

Rich, F. : see Fritsch, F. E.

29

Richardia africana, pollen mother-cells (*), 23, 34.

Ricinus communis, proteases of seeds, 22, 109 ; respiration of seeds, 22, 432. Ridley, H. N. : Branching in Palms (*), 21, 416.

— Branching Palms, 23, 338.

— On Endemism and the Mutation Theory, 30, 551.

— Symbiosis of Ants and Plants (*), 24, 457. Robinia pseudacacia, anatomy of leaf-fall,

25, 81.

Robinson, W. : Some Experiments on the Effect of External Stimuli on the Sporidia of Puccinia Malvacearum (*), 28, 331. Roesleria pallida, description (*), 30, 407 ;

relation with Pilacre (*), 30, 41 1. Root-nodules of Ceanothus americanus (*), 29, 605; of Cycadaceae (*), 29, 619; of Myrica Gale (*), 26, in ; of Podocarpi- neae (*), 26, 801.

Root-system of Cucumis sativus, extent, 26, 951.

Root-tubercles of Alnus and Elaeagnus, morphology (*), 26, 119.

Roots, effect of water on, 25, 731; gal- vanotropism of (*), 21, 387.

— of Amyelon radicans, mycorhiza of (*),

23, 603.

Rosa, spp., seedling-anatomy, 28, 722.

— mollis, insect visitors, 22, 634.

Rosales, seedling-anatomy (*), 28, 695. Roscoea purpurea, seedling-anatomy (*),

29, 213.

Rubus, spp., insect visitors, 22, 608 ; seedling- anatomy, 28, 722.

Rudbeckiaamplexicaulis, seedling-structure,

28, 311.

Rushton, W. : The Development of ‘ Sanio’s Bars ’ in Pinus Inops (*), 30, 419-

Rusts, development of Uredo mycelia of cereal (*), 21, 441 ; sexual cell fusions and vegetative nucelar divisions (*), 22, 331.

S.

Saccharomyces, cell reproduction to free oxygen supply, relation, 28, 197; fer- mentation, thermal phenomena, 28, 217 ; metabolism, 28, 217.

— budding (*), 24, 73; cytology (*), 24, 45 ; fixing and staining, 24, 51 ; glycogen, (*), 24, 61 ; iron (*), 24, 69 ; nucleolus (*), 24, 58; phosphorus (*), 24, 70; spore formation (*), 24, 73 ; vacuole (*),

24, 55 ; volutin (*), 24, 64.

— cereviseae, proteolytic activity, 23, 7. Sacchoriza (Laminaria) bulbosa, histology,

22, 319.

Sacccloma, phylogeny (*), 27, 457.

Sadleria cyatheoides, description (*), 28,

385.

Sagina procumbens, insect visitors, 22, 628.

30

Annals of Botany.

Saintpaulia ionantha, peloria in (*), 26, 946.

Salicales, reduction and reversion in North American (*), 26, 165.

Salicornia, effect of salt on growth (*), 29, 143; seedling-anatomy (*), 26, 184.

Salisbury, E. J. : Methods of Palaeobotani- cal Reconstruction (*), 27, 273.

— On the Occurrence of Vegetative Propa- gation in Drosera (*), 29, 308.

— On the Relation between Trigonocarpus and Ginkgo, 30, 356.

— On the Structure and Relationships of T rigonocarpus Shorensis, sp. nov. A New Seed from the PalaeozoicRocks (*), 28, 39.

— The Extra-floral Nectaries of the Genus Polygonum (*), 23, 229.

— Variations in Anemone nemorosa (*), 30, 525.

— see Oliver, F. W.

Salix, spp ., insect visitors, 22, 628 ; seedling- structure, 30, 580 ; structure of North American (*), 26, 165.

— Caprea, anatomy of leaf-fall (*), 25, 62.

Salpiglossis sinuatus, seedling-anatomy, 26,

737-

Salsola Kali, seedling-structure, 26, 186.

Salvia, histology (*), 25, 657.

Salvinia natans (*), 25, 469 ; embryo (*), 25, 478 ; female gametophyte (*),25, 476 ; fertilization (*), 25, 478 ; macrospore formation (*), 25, 474 ; male prothallium (*), 25, 472 ; microspore formation (*), 25, 470.

Samaropsis, description (*), 28, 89, 97.

— crassa, description (*), 28, 98.

— emarginata, description (*), 28, 98.

— fluitans, description (*), 28, 98.

— Meachemi, description (*), 28, 98.

— subacuta, description (*), 28, 99.

Samarospermum, n. gen., description (*),

28, 90, 99.

— moravicum, description (*), 28, 99.

Sampson, K.: Note on a Sporeling of

Phylloglossum attached to a Prothallus (*), 30, 605.

— The Morphology of Phylloglossum Drum- mondii, Kunze (*), 30, 315.

Sanio’s bars in Pinus Inops, development (*), 30, 419.

Sap particles or inclusions studied under dark-ground illumination (*), 28, 613.

Saponaria, spp., seedling-structure, 26, 179.

Saprolegniaceae, physiological varieties (*), 22, 379; problem of species, 22, 382; relation of growth and reproduction, 22, 371 ; sexual organs (*), 22, 361, 373.

Sargant, E. : The Reconstruction of a Raceof Primitive Angiosperms (*),22,i2i.

— and Arber, A. : The Comparative Mor- phology of the Embryo and Seedling in the Gramineae (*), 29, 161.

Sargent, O. H. : Notes on the Life-history of Pterostylis (*), 23, 265.

Saussurea albescens, seedling-structure, 28, 320.

Saxelby, E. M.: The Origin of the Roots in Lycopodium Selago (*), 22, 21.

Saxifraga, spp., insect visitors, 22, 609, 626, 638 ; seedling anatomy, 28, 724.

Saxton, W. T. : Contributions to the Life- history of Actinostrobus pyramidalis (*), 27, 321.

— Contributions to the Life-history of I

Callitris (*), 24, 557. •

— Contributions to the Life-history of Tetraclinis articulata, Masters, with some Notes on the Phytogeny of the Cupres- • soideae and Callitroideae (*), 27, 577.

— Note on an Abnormal Prothallus of Pinus maritima, L. (*), 26, 943.

Schizaeaceae, a Lower Cretaceous species from eastern North America (*), 25, 193.

Schizaeopsis expansa, description (*), 25, T?4-

Schizanthus pinnatus, seedling-anatomy, 26, 737-

Schizocotyly, anatomical study (*), 27, 793.

Schizospermus, n. gen., description (*), 28, 86.

— Noeggerathi, description (*), 28, 86, 103.

Schwartz, E. J. : A New Parasitic Disease

found in the Roots of Grasses. — Prelimi- nary Note, 25, 270.

— A New Parasitic Disease of the Junca- ceae. — Preliminary Note, 24, 236.

— Observations on Asarum europaeum and its Mycorhiza (*), 26, 769.

— Parasitic Root Disease of the Juncaceae (*)> 24, 51 1.

— The Life-history and Cytology of Soro- sphaera Graminis (*), 25, 791.

— The Plasmodiophoraceae and their Rela- tionship to the Mycetozoa and the Chytri- deae (*), 28, 227.

— see BLOMFIELD, J. E.

Sciadopitys verticillata, archegonia (*), 24, 412 ; embryo (*), 24, 414 ; female game- tophyte (*), 24, 407 ; fertilization (*), 24, 414; male gametophyte (*), 24, 403; seedling-structure (*), 22, 708.

Sciaphila, flowers, 21, 72 ; remarks on genus,

21,71.

— aneitensis, n. sp., description (*), 21, 75.

— tenella, description (*), 21, 75.

Scitamineae, mesarch-structure in cotyle- dons (*), 24, 485.

Sclerocystis coremioides, general account, 22, 1 1 6.

Scolopendrium, phylogeny (*), 28, 409.

— var. crispum Drummondae, apospory (*), 21, 172.

Scott, D. G. : On the Distribution of Chlorophyll in the Young Shoots of Woody Plants (*), 21, 437.

Scott, D. H. : David Thomas Gwynne- Vaughan, 30, i.

Index to Vols. XXI-XXX.

Scott, D. H.: On a Palaeozoic Fern, the Zygopteris Grayi of Williamson (*), 26, 39.

— On Bensonites fusiformis, sp. nov., a Fossil associated with Stauropteris burntislandica, P. Bertand, and on the Sporangia of the Latter (*), 22, 683.

— Sporangia attributed to Botryopteris an- tiqua, Kidston (*), 24, 819.

— The Structure of Mesoxylon Lomaxii and M. poroxyloides (*), 26, ion.

— and Maslen, A. J. : On Mesoxylon, a New Genus of Gordaitales. — Prelimi- nary Note, 24, 236.

The Structure of the Palaeozoic Seeds,

T rigonocarpus Parkinsoni, Brongniart , and Trigonocarpus Oliveri, sp. nov. Part I (*) 21 89

Scott, R. (Mrs. D. H. Scott): On Tra- quairia (*), 25, 459.

Scourfieldia cordiformis, n. sp ., description (*), 30, 157.

Scrophularia nodosa, seedling-anatomy, 26, 739.

Scrophulariaceae, seedling-anatomy (*), 26, 738.

Scutellum, nature of (*), 30, 510.

— of Hordeum, amylase content, 25, 1167.

Sebaea, floral morphology of genus (*), 27,

479-

Secale cereale, vitality and self-digestion of endosperm, 22, 459.

Secretory tissues of Marattiaceae, structure and development (*), 29, 409.

Sedum glaucum, seedling-anatomy, 28,724.

— Rhodiola, insect visitors, 22, 621.

Seed, endospermic respiration, 22, 415.

— impressions of the British Coal Measures, revision (*), 28, 81.

— of Alsinoideae, development and struc- ture (*), 21, 25.

— of Gramineae, semipermeable membranes,

21, 79-

— $f Indigofera arrecta, cause of hardness

(*), 21, 57.

— leaves, classification, 28, 359.

— testing by germination and electrical response, 30, 18 1.

Seedling-structure, classification of seed leaves, 28, 359; phylogeny, 24, 165; 27, 257 ; physiology (*), 27, 264; value in classification, 24, 164.

Seedling-structure of Abies, spp. (*), 22, 194; Abietineae (*), 22, 706; Abronia, spp. (*), 26, 189 ; Achillea pyrenaica, 28, 316 ; Actinostrobus pyramidalis (*), 22, 703 ; Adonis annua, 28, 707 ; Aethionema persicum, 28, 717 ; Aizoaceae (*), 26, 187; Alnus, spp. (*), 30, 587; Alpinia calcarata, 29, 215; Alyssum, spp., 28, 715; Amarantaceae (*), 26, 18 1 ; Ama- ranthus, spp., 26, 18 1 ; Amberboa muri- cata, 28, 320 ; Amentiferae (*), 30, 575 ; Amomum angustifolium (*), 29, 212;

Anacyclus Pyrethrum, 28, 316 ; Anasta- tica hierochuntina, 28, 715; Anemone, spp. (*), 28, 702 ; Anona, spp., 28, 71 1 ; Antirrhinum Orontium, 26, 739; Aqui- legia, 28, 707; Arabis rosea, 28, 717; Araucaria, spp. (*), 22, 212; 23, 321; Arctium majus, 28, 319 ; Arctotis calen- dacea, 28, 319 ; Artemisia, spp.. 28, 317 ; Atriplex,^., 26, 183 ; Atropa Belladonna (*), 26, 734; Aubretia antilibani, 28, 717; Avena sativa (*), 29, 170; Baeria coronaria, 28, 315; Barbarea vulgaris, 28, 718; Berberis, spp. (*), 28, 708; Beta, spp., 26, 183; Betula, spp., 30, 589; Bidens pilosa (*), 28, 313; Bignoniaceae (*), 26, 740 ; Bocconia japonica, 28, 719 ; Brachychilum Horsfieldii (*), 29, 215; Browallia viscosa, 26, 737 ; Bupthalmum speciosum, 28, 308 ; Cactaceae (*), 24, 125; Calandrinia, spp. (*), 26, 175;

Callitris, spp., 22, 704 ; Caltha palustris,

28, 707 ; Calycanthus, spp. (*), 28, 711 ; Cannabis sativa (*), 27, 806 ; Capparis, spp. (*), 28, 720 ; Cardamine hirsuta, 28, 718; Carmichaelia australis, 27, 816; Carpinus, spp., 30, 589; Carya, spp., 30, 586 ; Castanea sativa (*), 30, 592 ; Casua- rina, spp., 30, 579; Cedrus, spp., 23, 198 ; Celosia, spp., 26, 18 1 ; Centrospermae (*), 26, 175 ; Cepnalotaxus, spp. (*), 22, 690; Cerastium perfoliatum, 26, 180; Ceratonia siliqua, 28, 726 ; Cereus, spp. (*), 24, 137; Cheiranthus, spp. (*), 28, 714; Chelidonium majus (*), 28, 719; Chenopodiaceae (*), 26, 182 ; Chenopo- dium, spp., 26, 183; Claytonia perfoliata, 26, 177; Clematis, spp., 28, 705 ; Cleome sesquiorgialis (*), 28, 720 ; Coix Lacryma- Jobi (*), 29, 195 ; Golchicum autumnale,

29, 218 ; Commelina coelestis (*), 29,

217; Compositae (*), 28, 303; Con- volvulaceae (*), 26, 728 ; Convol-

vulus, spp. (*), 26, 728; Corispermum hyssopifolium, 26, 184; Corrigiolalitora- lis, 26, 181 ; Corydalis, spp., 28, 720; Coryius Avellana, 30, 590 ; Cotoneaster affinis, 28, 724; Cotyledon orbiculare, 28, 724; Crambe tartarica, 28, 718; Crataegus Oxyacantha, 28, 7 24 ; Crypto- meria japonica, 22, 708 ; Cucubalus

baccifera, 26, 177; Cupressineae (*), 22, 696 ; Cupressus, spp. (*), 22, 699 ; Cus- cuta Epilinum (*), 26, 732 ; Cycadaceae (*), 23, 437; Datura , spp. (*), 26, 734 5 Decaisnea Fargesii (*), 28, 709 ; Delphi- nium, spp., 28, 707 ; Dianthus, spp., 26, 179; Diascia Barberae (*), 26, 738; Digitalis, spp., 26, 740 ; Dimorphotheca pluvialis (*), 28, 318; Dioon edule (*), 23, 446 ; Dischisma arenarium, 26, 739; Echinocactus, spp. (*), 24, 150; Echino- cereus, spp. (*), 24, 143; Echinopsis, spp. (*), 24, 143; Elettaria Cardamomum (*),

Annals of Botany.

32

29, 209 ; Encephalartos Altensteinii (*),

23, 449; Ephedra, spp. (*), 24, 319;

Erysimum pulchellum, 28, 7 1 5 ; Euchlaena mexicana, 29, 198; Exochorda, spp., 28, 723 ; Fagus sylvatica, 30, 594; Fortunea (*), 30, 587 ; Fragaria indica, 28, 723; Gaillardia aristata, 28, 316 ; Galinsoga parviflora, 28, 315 ; Geum, spp., 28, 723 ; Ginkgo biloba (*), 23, 433 ; Glaucium serpieri (*), 28, 719; Gnetales (*), 24, 319; Gnetum, spp. (*). 24, 326; Gom- phrena, spp., 26, 182 ; Gymnosperms

(*), 22, 689; 23, 189, 433; 24, 319; Gypsophilasaxifraga, 26, 179 ; Helianthus annuus (*), 27, 795; Helichrysum brac- teatum (*), 27, 816 ; Heliopsis laevis (*), 28, 310; Helleborus foetidus, 28, 707 5 Hesperis tristis, 28, 716 ; Heuchera alba, 28, 724 ; Hieracium alpinum (*), 28, 323 ; Hordeun vulgare (*), 29, 203 ; Hottonia (*), 25, 262 ; Iberis, spp. (*), 28, 717; Illicium religiosum, 28, 710; Incarvillea Delayvei (*), 26, 740 ; Inula Helenium, 28, 308 ; Juglans, spp. (*), 30, 583 ; Juni- perus, spp. (*), 22, 696 ; Kochia tricho- phylla, 26, 184; Lactuca sagittata, 28, 322; Larix, spp. (*), 23, 210; Laurus, spp. (*)> 28, 712 ; Leersia oryzoides, 29, 183; Lepidium sativum (*), 27, 813; Leptosyne Douglasii (*), 28, 311; Libo- cedrus decurrens (*), 22, 702 ; Linaria, I spp., 26, 738; Liquidambar styraciflua, 28, 725; Liriodendron tulipifera (*), 28, 710; Lolium italicum, 29, 184; Lotus corniculatus (*), 27, 814 ; Lunaria, spp. (*), 28, 718 ; Lychnis Viscaria, 26, 178; I Macrozamia spiralis (*), 23, 438 ; Madia sativa, 28, 315; Magnolia, spp. (*), 28, 709 ; Malcolmia littorea, 28, 715 ; Mamil- laria, spp. (*), 24, 156 ; Matricaria eximia, 28, 316; Matthiola tricuspidata (*), 28, 715; Medicago, spp., 28, 726; Mesem- bryanthemum, spp. (*), 26, 187 ; Mimulus luteus, 26, 739 ; Mirabilis, spp. (*), 26, 193 ; Myosurus minimus, 28, 707 ; Myrica, spp. (*), 30, 581 ; Nemesia, spp., 26, 738 ; Nicandra physaloides (*), 26, 733 ; Nico- tiana alata, 26, 736 ; Nierembergia gracilis, 26, 737 ; Nigella, spp., 28, 707 ; Nopalea (*), 24, 134; Nyctaginaceae (*), 26, 188; : Obione portulacoides (*), 26, 184; Ono- i pordon tauricum, 28, 320; Opuntia, spp. \ (*), 24, 129 ; Paeonia, spp. (*), 28, 707 J Papaver, spp., 28, 719 ; Peltaria alliacea, 28, 717 ; Peperomia (*), 21, 139 ; Peres- kia, spp. (*), 24, 126 ; Petunia violacea, 26, 737 ; Phacelia tanacetifolia, 27, 8 x t ; Philadelphus grandiflorus, 28,724 ; Phyl- locactus Hookeri (*), 24, 136; Phyto- laccaceae, 26, 187; Phytolacca, spp., 26, 187; Picea, spp. (*), 23, 196; Picris echioides, 28, 322 ; Pilocereus, spp. (*),

24, 14 1 ; Pinus, spp. (*), 23, 199 ; Pitto-

sporum crassifolium (*), 28, 725 ; Platanus, spp., 28, 725 ; Platystemon californicus, 28, 719; Podocarpeae (*), 22, 694; 26, 1485 ; Podocarpus chinensis (*), 22, 694 ; Podophyllum emodi, 28, 708 ; Polycarpon tetraphyllum, 26, 181 ; Portulacaceae (*), 26, 175 ; Portulaca oleracea (*), 26, 177 ; Potentilla, spp., 28, 723 ; Prunus, spp., 27, 799 : (*), 28, 722 ; Pseudolarix Kaempferi,

23, 212; Pterocarya rhoifolia (*), 30,

587 ; Pupalia purpurea, 26, 182 ; Pyrus, spp. (*), 28, 723 ; Quercus, spp., 30, 591 ; Ranales (*), 28, 695 ; Ranunculus, spp. (*), 28, 704 ; Rehmannia angulata, 26, 740; Renealmia racemosa, 29, 212;

Reseda, spp. , 28, 719; Rhipsalis, spp. (*),

24, 142 ; Rhodotypus kerrioides, 28, 723;

Rhoeadales (*), 28, 695; Rosa, spp., 28, 722 ; Rosales (*), 28, 695 ; Roscoea pur- purea (*), 29, 213 ; Rubus, spp., 28, 722 ; Rudbeckia amplexicaulis, 28, 3 1 1 ; Sali- cornia, spp. (*), 26, 184; Salix, spp., 30, 580; Salpiglossis sinuatus, 26, 737; Sal- sola Kali, 26, 186 ; Saponaria, spp. (*), 26, 179; Saussurea albescens, 28, 320;

Schizanthus pinnatus, 26, 737 ; Scrophu- laria nodosa, 26, 739; Scrophulariaceae (*), 26, 738 ; Saxifraga, spp., 28, 724 ; Sciadopitys verticillata (*), 22, 708; Sedum glaucum, 28, 724; Senecio clivo- rum, 28, 317 ; Sequoia, spp. (*), 22, 706 ; Serratula tinctoria, 28, 321 ; Silene, spp. (*), 26, 178 ; Silybium Marianum (*), 28, 317; Silphium perfoliatum (*), 28, 308; Sisymbrium carpaticum, 28, 717; Solanaceae (*), 26, 733 ; Solanum guine- ense, 26, 734 ; Solidago ulmifolia (*), 28, 306; Sollya heterophylla (*), 28, 725; Sorghum vulgare (*), 29, 185 ; Spergu- laria, spp., 26, 180; Spinachia oleracea, 26, 184 ; Spiraea callosa, 28, 723 ; Stan- geria (*), 23, 442 ; Stellaria graminea, 26, 180; Suaeda, spp., 26, r 86 ; Swain- sona Cadelli (*), 27, 794 ; Sympetalae (*), 26, 727 ; 28, 303 1 Tagetes, spp., 28, 316; Tanacetum vulgare, 28, 316;

Taxaceae (*), 22, 690 ; Taxus, spp. (*), 22, 692 ; Teesdalia nudicaulis, 28, 717 ; Tetragonia expansa, 26, 188 ; Tetranema mexicanum, 26, 740; Thalictrum, spp., 28, 706 ; Thuja, spp., 22, 703 ; Torenia, spp., 26, 739 ; Tragopogon dubius, 28. 322; Tridax procumbens (*), 28, 314; Triticum vulgare (*), 29, T99 ; Trollius asiaticus, 28, 707: Tsuga, spp., 23, 190; Tubiflorae (*), 26, 727 ; Tunica prolifera, 26, 180; Ulex europaens, 27, 810; Urti- cales, 30, 595; Verbascum pulverulentum, 26, 738 ; Veronica, spp., 26, 740 ; Wel- witschia (*), 24, 322 ; Widdringtonia, spp. (*), 22, 706 ; Xanthium strumarium, 28, 309 ; Zaluzianskya capensis, 26, 740 ; Zea Mays (*), 29, 19 1 ; Zingiberaceae

Index to Vols. XXI-XXX.

33

(*), 29, 209 ; Zinnia pauciflora, 28, 31 1 ; Zizania aquatica (*), 29, 179.

Seedling and embryo in the Gramineae, comparative morphology (*), 29, 161. Seedlings, morphology and physiology of fasciated (*), 26, 389.

Seeds of the Conostoma group, structure and affinities of Palaeozoic (*), 25, 1.

— structure of Palaeozoic (*), 21, 89. Seidelia, description of genus and species,

27, 398 ; distribution, 27, 409 ; review of,

27, 385.

Selaginella, anatomy of strobilus (*), 24, 19 ; cones (*), 24, 523 5 Hgule (*), 24, 32; sporangia (*), 24, 22, 23, 24 ; spore dis- persal (*), 24, 25 ; variation in number of spores, 24, 24 ; vegetative reproduction in Indian species (*), 28, 685. Semi-permeable membranes of seeds of Gramineae, 21, 79.

Senecio clivorum, seedling-structure, 28, 317.

— vulgaris, anomalies in ovary (*), 30, 191. Septobasidium, biology of genus, 25, 842. Sequoia, spp., seedling-structure (*), 22, 706. Serratula tinctoria, seedling-structure, 28,

321.

Sex determination in Mnium hornum (*), 29,433.

Sexual cell fusions and vegetative nuclear divisions in the Rusts (*), 22, 331.

— organs of Saprolegniaceae, variation (*),

22, 361.

Sexuality of Ascomycetes, 22, 41, 471. Seychellaria, description, 21, 74.

— Thomassetii, description (*), 21, 74. Shaw, F. J. F. : The Seedling-structure of

Araucaria Bidwillii (*), 23, 321.

Shrinkage of turgid tissues, permeability of protoplasm measured by rate of (*), 30, 283.

Sieve fields, development (*), 22, 265. Sieve-plates, development (*), 22, 269 ; of Cucurbita (*), 22, 273 ; of Vitis (*), 22, 274 ; of Wistaria (*), 22, 270. Sieve-tubes, anastomosing strings (*), 22, 276 ; intercellular connexions (*), 22, 278 ; structure of active (*), 22, 261.

of Angiosperms (*), 22, 245 ; of Ly-

godium dichotomum, 26, 581 ; of Mar- silia quadrifolia, 26, 581; of Pteridium aquilinum (*), 26, 573.

Sigillaria mamillaris, cortex, 23, 513.

Silene, spp., seedling-structure, 26, 178. Silphium perfoliatum, seedling-structure (*),

23, 308.

Silver-leaf disease, treatment by cytoclastic enzyme, 27, 172.

Silybium Marianum, seedling-structure (*),

28, 317.

S inapis alba, proteases of seeds (*), 22, 108. Sinnott, E. W. : Foliar Gaps in the Osmundaceae (*), 24, 107.

Sinnott, E. W. : Some Jurassic Osmun- daceae from New Zealand (*), 28, 471.

— The Evolution of the Filicinean Leaf- trace (*), 25, 167.

— The Morphology of the Reproductive Structures in the Podocarpineae (*) ,27, 39.

— and Bailey, I. W. : Investigations on the Phylogeny of the Angosperms. No. 4. The Origin and Dispersal of Herbaceous Angiosperms (*), 28, 547.

Siphonales, zoospore and motile gamete as taxonomic characters, 22, 14.

Siphoneae of the T ropics, freshwater and terrestrial, 21, 254.

Sisymbrium carpaticum, seedling-anatomy,

28, 717.

Skene, M. : The Acidity of Sphagnum and its Relation to Chalk and Mineral Salts,

29, 65.

Small, J. : Anomalies in the Ovary of Senecio vulgaris (*),30, 191.

— The Pollen-presentation Mechanism in the Compositae (*), 29, 457.

Smilacina racemosa, meiotic divisions in microspore mother-cells (*), 29, 471.

Smith, G. M. : Cytological Studies in the Protococcales. I. Zoospore Formation in Characium Sieboldii, A. Br. (*), 30, 459.

— Id. II. Cell Structure and Zoospore Formation in Pediastrum Boryanum, (Tump.) Menegh. (*), 30, 467.

Snell, J. : see Fraser, H. C. I.

Sodium chloride content of non-halophytes, variations in, 27, 168.

- — — on growth of Salicornia, effect of (*), 29, 143.

Soils, weeds of arable land in relation to, 26, 95.

Solanaceae, seedling-anatomy (*), 26, 733.

Solanum guineense, seedling-anatomy, 26,

734-

— tuberosum, anatomy of tubers (*), 24,539.

— bacteria pathogenic to, 26, 15 1. Solenostelopteris, n.gen ., description, 24, 689. — japonica, n. sp., affinities, 24, 690 ;

description, 24,689; leaf-trace and branch (*), 24, 686 ; rootlets (*), 24, 688 ; st m - structure (*), 24, 683.

Solidago ulmifolia, seedling-structure (*), 28, 306.

Sollya heterophylla, seedling-anatomy (*),

28, 725.

Soral position, phyletic value, 27, 467. Sorghum vulgare , seedling-anatomy (*), 29,

185.

Sorosphaera Graminis, a parasite on roots of grasses, 25, 270.

life-history and cytology (*), 25, 791.

— Junci, parasitic disease of Juncaceae, 24, 236; (*), 24, 511.

akaryote stage (*), 24, 516 ; infection

(*), 24,514; sporont, 24, 516 ; structure of diseased roots (*),24, 517 ; systematics,

D

34

A nnals of Botany.

24, 518; vegetative nuclear division (*), 24, 515.

Sorosphaera Veronicae, tumours on Veronica chamaedrys caused by (*), 24, 35. Spartina Townsendii, morphology, 30, 335 ;

physiological anatomy (*), 30, 336. Spencerites, systematic position, 23, 379. Spergula arvensis, insect visitors, 22, 628 ; seedling-structure, 26, 180.

— salina, seedling-structure, 26, 180. Spermatogenesis in Blasia pusilla (*), 27,

93 ; in Bryophyta (*), 25, 415 ; in Hepa- ticae (*), 25, 299, 307 ; in Mnium affine var. ciliaris (*), 29, 441 ; in M. hornum,

24, 255 ; in Polytrichum (*), 27, 115. Spermogonium and fertilization in Collema,

new type of (*), 26, 747.

Sphagnum, acidity of, 29, 65 ; liberation of acids from their salts, 29, 74 ; localization of the acid compounds, 29, 75 ; variation in acidity, 29, 78.

— and chalk, relationship, 29, 80.

— and mineral solutions, relationship, 29,85. Sphenophyllum and Psilotum, comparison,

22, 78.

Sphenopteris type of foliage, a Pteridosperm possessing (*), 22, 57.

Spinachia oleracea, seedling-structure, 26, 184.

Spiraea, distribution of hairy species (*), 26, 816.

— callosa, seedling-anatomy, 28, 723.

— Ulmaria, comparison with other hairy plants, 26, 821; distribution and pubes- cence of leaves (*), 26, 819 ; effect of en- vironment on hair production and palisade cells (*), 26, 834 ; habit and habitats (*), 26, 817 ; hair formation and palisade cells, cause of formation, 26, 842 ; hairs, physio- logical effect (*), 26, 842 ; insect visitors, 22, 635; leaf development (*), 26, 830 ; localization of leaf withering (*), 26, 840 ; seasonal differences in leaf-structure (*), 26, 822 ; xeromorphy (*), 26, 852.

Spireme in Allium Cepa, nature of the double (*), 28, 271.

Spirogyra, an attached species of (*), 27, 3 66.

— occurrence, 21, 424; reproduction (*), 21, 429 ; systematics, 21, 433.

Spongospora Solani, preliminary note, 25, 272.

— subterranea, 25, 271 ; (*), 25, 327 ; life- history (*), 25, 329 ; vegetative phase (*),

25, 329 ; reproductive phase (*), 25, 331. Sporangia attributed to Botryopteris antiqua

(*), 24, 819.

— of Todea, production of dwarf male prothalli in (*), 22, 231.

Spore development, in Gompositae (*), 26, 705 ; in Ipomoea (*), 25, 200; studies in (*)> 27, 643.

Spore formation in ascus (*), 23, 545 ; in

Derbesia (*), 22, 1 ; in Mnium hornum (*), 23, 141.

Sporeling of Osmundaceae, anatomy (*), 25, 528.

Sporidia of Puccinia malvacearum, effect of external stimuli on (*), 28, 331.

Sporodinia grandis, cytology of zygospores (*), 28, 455-

Sporogonium of Notothylas (*), 21, 201.

Sporophytes of Lycopodium complanatum and L. clavatum (*), 21, 211.

Spratt, E. R. : Some Observations on the Life-history of Anabaena Cycadeae (*), 25, 369.

— The Formation and Physiological Signi- ficance of Root Nodules in the Podocar- pineae (*), 26, 801.

— The Morphology of the Root Tubercles of Alnus and Elaeagnus, and the Poly- morphism of the Organism causing their Formation (*), 26, 119.

— The Root-nodules of the Cycadaceae (*), 29, 619.

Squamosis of Citrus, cause, 25, 144 ; de- scription (.*), 25, 14 1 ; histology (*), 25, 143 ; historical, 25, 141 ; preventive and remedial measures, 25, 145.

Stamens of Indian species of Parnassia, anatomy of (*), 29, 159.

Stangeria, seedling-structure (*), 23, 442.

Stapf, O. : Rediscovery of Statice arborea and Discovery of a New Allied Species, 22, 115.

Staphylea trifolia, mitosis in pollen mother- cells (*), 28, 123.

Stapledon, R. G. : On the Plant Com- munities of Farm Land, 30, 16 1.

Statice arborea, rediscovery, 22, 115.

— bellidifolia, anatomy and morphology (*), 30, 250, 276; description of species (*), 30, 246; habitat and oecological factors, 30, 240.

— binervosa, anatomy and morphology (*), 30, 250, 279; description of species (*), 30, 246 ; habitat and oecological factors, 30, 240.

— Perezii, n. sp., description, 22, 116.

Stauropteris burntislandica, Bensonites fusi-

formis associated with (*), 22, 683.

Stelar anatomy of Trichomanes javanicum (*), 25, 1038.

— development in Dipteris .(*), 25, 761.

Stellaria graminea, insect visitors, 22, 628 ;

seedling-anatomy, 26, 180.

— stele, insect visitors, 22, 627.

Stellatae, morphology of stipules (*), 30,

197, 601.

Stem anatomy of Umbelliferae (*), 29, 55.

Stenochlaena sorbifolia, description and phylogeny (*), 28, 391.

Stephens, E. L. : A Preliminary Note on the Embryo-sac of certain Penaeaceae, 22, 329.

Index to Vols.

Stephens, E. L. : Note on the Anatomy of Striga lutea, Lour., 26, 1125.

— The Development of the Seed-coat of Carica Papaya (*), 24, 607.

— The Embryo-sac and Embryo of certain Penaeaceae (*), 23, 363.

— The Structure and Development of the Haustorium of Striga lutea (*), 26, 1067.

— and Sykes, M. G. : Preliminary Note on Apogamy in Pteris droogmantiana, 24, 487.

Stephensia, description, 23, 254.

— bombycina, description (*), 23, 254. Sterility in Oenothera gigas (*), 25, 927 ; in

O. Lamarckiana (*), 25, 952.

Stevens, W. C. : On the Development of the Sporangia and Spores of Aneimia phyllitidis (*), 25, 1059.

Stigeosporium, n. gen., diagnosis, 30, 357.

— marattiacearum, n.sp., diagnosis, 30, 357. Stigmaria with centripetal wood (*), 22,

221; periderm (*), 22, 222; secondary wood (*), 22, 224.

Stiles, W. : On the Interpretation of the Results of Water Culture Experiments, 30, 427.

— On the Relation between the Concentra- tion of the Nutrient Solution and the Rate of Growth of Plants in Water Culture,

29, 89.

— The Podocarpeae (*), 26, 443.

— The Structure of the Aerial Shoots of Psilotum flaccidum, Wall. (*), 24, 373.

— see Brooks, F. T., and also Sykes, M. G.

— and Jorgensen, I. : Studies in Permea- bility. I. The Exosmosis of Electrolytes as a Criterion of Antagonistic Ion-action (*), 29, 349-

Id. II. The Effect of Temperature on

the Permeability of Plant Cells to the Hydrogen Ion (*), 29, 6ri.

Stipulus in the Stellatae, morphology (*),

30, 197, 601.

Stomata, development in Gnetum Gnemon (*), 27, 365 ; of halophytes, behaviour (*), 25, 499 ; in hypogeal cotyledons, 28, 545 ; of succulents, 26, 416; of Tradescantia pulchella, occlusion, 27, 369.

Stomatal behaviour during wilting (*), 30, 47-

— investigation, use of porometer in (*), 30, 57.

Stopes, M. C.: A New Araucarioxylon from New Zealand (*), 28, 341.

— A Note on Wounded Calamites (*), 21, 277.

— A Reply to Prof. Jeffrey’s Article on Yezonia and Cryptomeriopsis, 25, 269.

— An Early Type of the Abietineae (?) from the Cretaceous of New Zealand (*), 30,

hi.

— Further Observations on the Fossil Flower, Cretovarium (*), 24, 679.

— On the True Nature of the Cretaceous

XXI-XXX. 35

Plant Ophioglossum granulatum (*(, 25, 9°3-

Stopes, M. C. : The Internal Anatomy of Nilssonia orientalis (*), 24, 389.

— and Fujii, K. : Studies on the Structure and Affinities of Cretaceous Plants, 24, 231.

— and Kershaw, E. M. : The Anatomy of Cretaceous Pine Leaves (*), 24, 397.

Stoward, F. : A Research into the Amy- loclastic Secretory Capacities of the Em- bryo and Aleurone Layer of Hordeum, with Special Reference to the Question of the Vitality and Auto-depletion of the Endosperm. Part I, 25, 799.

— Id. Part II, 25, 1147.

— On Endospermic Respiration in Certain Seeds, 22, 415.

Stratification in the vegetation of a marsh, and its relations to evaporation and tem- perature (*), 23, 275.

Strength and development of grain of T riti- cum vulgare (*), 23, 1 17.

Striga lutea, the plant (*),26, 1067; anatomy, 26, 1125.

— - — the haustorium, connexion with host (*), 26, 1070; development and origin (*), 26, 1068; nutrition mechanism, 26, 1073; structure (*), 26, 1068.

Struthiopteris, phyletic consideration (*), 26, 300.

Strychnine on somatic cells, action of, 25, 1069.

Suaeda, spp., seedling-structure, 26, 186.

Succulence, transpiring surface in relation to,

26, 410.

Succulent plants, transpiration (*), 26, 409-

Sugar, method of locating by ozazones (*), 29, 369.

Summers, F. : On the Occurrence of Lens- cells in the Epidermis of Mesembryanthe- mum pseudotruncatellum (*), 25, 1137.

Surinam disease (*), 25, 363.

Suspensor of Helminthostachys zeylanica, 24, 6 1 1.

Sutcliffia, affinities and structure of a new specimen (*), 26, 1031.

— insignis, affinities, 26,1058; extra-fasci- cular strands (*), 26, 1053; ground

tissue and secondary cortex (*), 26, 1051 ; histology of leaf-traces (*), 26, 1047, of phloem (*), 26, 1046, of wood (*), 26, 1043; meristeles, course (*), 26, 1037; structure (*), 26, 1033.

Sutherland, G. K., and Eastwood, A. : The Physiological Anatomy of Spartina Townsendii (*), 30, 333.

Swainsona Cadelli, seedling-structure (*),

27, 794-

Swamp xerophytes, a resume and tentative hypothesis, 26, 854.

Sykes, M. G. : Anatomy and Histology of

3^

Annals of Botany.

Macrocystis pyrifera and Laminaria sac- charina (*), 22, 291.

Sykes, M. G. : Note on an Abnormality found in Psilotum triquetrum (*), 22, 525.

— Note on the Nuclei of some Unisexual Plants, 23, 341.

— The Anatomy and Morphology of T mesi- pteris (*), 22, 63.

— see Stephens, E. L.

— see T HODAY, D.

— and Stiles, W. : The Cones of the Genus Selaginella (*), 24, 523.

Symbiosis of ants and plants (*), 24, 457-; Clerodendron myrmecophilum, 24, 470 ; Daemonorops, 24, 461 ; Dischidia raffle- siana, 24, 462 ; Goniothalamus, 24, 461 ; Korthalsia, 24, 459 ; Macaranga, spp. (*), 24, 470 ; Platycerium biforme, 24, 469 ; Polypodium sinuosum, 24, 465; Tham- nopteris, 24, 468.

— in Calluna vulgaris (*), 29, 97.

Sympetalae, seedling-anatomy (*), 26, 727;

28, 303.

Syncotyly, anatomical study (*), 27, 793.

Syringa vulgaris, insect visitors, 22, 604.

T.

Tabor, R. J. : The Leaf Buds of Archytaea alternifolia (*), 25, 1015.

Tagetes, spp., seedling-structure, 28, 316.

Taka-diastase, 24, 217.

Takeda, H. : A Theory of ‘Transfusion- tissue 27, 359-

— Development of the Stoma in Gnetum Gnemon (*), 27, 365.

— Dysmorphococcus variabilis, gen. et sp. nov. (*), 30, 1 51.

— Morphology of the Bracts in Welwitschia mirabilis (*), 27, 547.

— On Carteria Fritschii, sp. nov. (*), 30,

369.

— Scourfieldia cordiformis, a New Chlamy- domonad (*), 30, 157.

— Some Points in the Anatomy of the Leaf of Welwitschia mirabilis (*), 27, 349.

— Some Points in the Morphology of the Stipules in the Stellatae, with Special Reference to Galium (*), 30, 197.

— Id. Additional Note (*), 30, 601.

— see FRITSCH, F. E.

Tanacetum vulgare, seedling-structure, 28, 316.

Tannin in oak heart- wood, 29, 407.

Tannin-ducts and sacs of Marattiaceae, development and structure (*), 29, 417.

Taxaceae, seedling-structure (*), 22, 690.

Taxus baccata, seedling-anatomy (*), 22, 692.

Tecoma capensis, pollination and respiration, 21, 493.

Teesdalia nudicaulis, seedling-anatomy, 28, 717.

Telosynapsis and parasynapsis, 26, 623.

Temperature, influence of, on germination of conidia of Cladosporium, 24, 365 ; on permeability of cells to the hydrogen ion (*), 29, 61 1 ; on permeability of proto- plasm (*), 30, 283 ; on rate of growth in Pisum (*), 30, 25.

— and evaporation, relation between, in marsh vegetation (*), 23, 275.

— and growth (*), 22, 557.

— and respiration, 22, 433.

Terfezia, description, 23, 261.

— leonis, description (*), 23, 261.

Testa, discussion on (*), 25, 41.

Tetraclinis articulata (*), 27, 577 ; fertiliza- tion and development of pro-embryo (*), 27, 593 ; male gametophyte (*),27, 585 ; megasporangiate strobilus and female gametophyte (*), 27, 586 ; microsporan- giate strobilus and microsporogenesis (*), 27, 579 5 phylogeny (*), 27, 598.

Tetragonia expansa, seedling-structure, 26, 188.

Tetranema mexicanum, seedling-anatomy, 26, 740.

Tetraspora lubrica, nuclear division (*), 27, 681.

Thalictrum, spp., seedling-anatomy, 28, 706.

— flavum, vascular anatomy (*), 22, 658.

— ■ purpurascens, pollen mother-cells (*),

23, 21.

Thamnopteris, symbiosis with ants, 24, 468.

Thermal phenomena of fermentation in Saccharomyces, 28, 217.

Thesium as a host (*), 24, 674.

T hoday, D : On the Capillary Endiometric Apparatus of Bonnier and Mangin for the Analysis of Air in investigating the Gaseous Exchanges of Plants (*), 27, 565.

— On the Effect of Chloroform on the Respiratory Exchanges of Leaves (*), 27, 697.

— and Sykes, M. G. : Preliminary Observa- tions on the Transpiration Current in Submerged Water-plants, 22, 635.

Thoday, M. G. (Sykes): Note on the Inflorescence Axis in Gnetum, 26, 621.

— - On the Histological Relations between Cuscuta and its Host (*), 25, 655.

— The Female Inflorescence and Ovules of Gnetum africanum, with Notes on Gnetum scandens (*), 25, 1101.

— and Berridge, E. M. : The Anatomy and Morphology of the Inflorescences and Flowers of Ephedra (*), 26, 953.

Thomas, E. N.: Seedling-anatomy of Ranales, Rhoeadales, and Rosales (*), 28, 695.

Thomas, H. M. : see Arber, E. A. N.

T homas, N. : Notq^ on Cephaleuros (*), 27, 781.

Thompson, W. P. : On the Origin of the Multiseriate Ray of the Dicotyledons (*), 25, 1005.

Index to Vols.

Thompson, W. P. : The Anatomy and Relationships of the Gnetales. I. The Genus Ephedra (*), 26, 1077.

Thielavia basicola, endoconidia of (*), 29, 483.

T hiselton-Dyer, W. T. : Morphological Notes. XII. Germination of the Double Coco-nut (*), 24, 223.

Thuja, chromosome formation and distribu- tion (*), 22, 536; homotype mitosis (*),

22, 540; prophase (*), 22, 530.

— spp., seedling-anatomy, 22, 703.

Thyloses and cavity parenchyma in Ferns,

(*), 22, 401-

Thymus Serpyllum, insect visitors, 22, 605.

Tilia europaea, anatomy of leaf-fall (*), 25, 60.

Tmesipteris, anatomy (*), 22, 67 ; distribu- tion, 22, 63 ; external features (*), 22, 64 ; habitat, 22, 63 ; historical, 22, 66 ; sys- tematic position, 22, 83.

Todea, production of dwarf male prothalli in sporangia of (*), 22, 231.

Torenia, spp., seedling-anatomy, 26, 739. Toxic action of isomers on vegetable cells,

23, 1 8 1.

Toxin, presence of, in ‘infection drop’, 30, 404-

Tracheae of Ferns, nature of (*), 22, 517. Tracheidal wood of Coniferae, reason for,

24, 254.

Tracheides, a cretaceous Pityoxylon with marginal (*), 25, 315.

Tradescantia, heterotypic chromosomes in pollen mother-cells (*), 21, 327.

— pulchella, occlusion of stomata (*), 27, 369.

Tragopogon dubius, seedling-structure, 28, 322.

Transfusion tissue, origin (*), 25, 975; theory of, 27, 359.

T ranspiration, evaporation as a measure of (*), 23, 282.

— of Coniferae, 24, 242 ; of halophytes (*),

25, 486; in submerged plants, 23, 635; in succulents (*), 26, 409, 435.

— in succulents in relation to habitat, 26, 435 ; alpine plants, 26, 438 ; desert plants,

26, 435 ; epiphytes, 26, 436 ; halophytes, 26, 437 ; mangroves, 26, 436.

in relation to structure, 26, 4 1 o ; aqueous

tissue, 26, 420 ; conducting system, 26, 433 ; glands, 26, 422 ; protective means, 26, 412 ; reaction and nature of cell sap, 26, 425; stomata, 26, 416; superficial absorption, 26, 423 ; water conservation, 26, 428 ; water-storage, 26, 425.

— under Australian conditions (*), 24, 86 ; Dracaena Draco, 24, 91 ; Eucalyptus corynocalyx, 24, 89 ; E. maculata var. citriodora, 24, 88 ; Nerium Oleander, 24, 88.

XXI-XXX. 37

T ranspiring surface in relation to succulence, 26, 410.

Transpirometer, a recording (*), 28, 109. Traquairia (*), 25, 459 ; description (*), 25,

462.

— burntislandica, n. sp., description (*), 25, 465-

— Carruthersii, n. sp., description (*), 25,

463.

— Spenceri, n . sp., description (*), 25, 464.

— stellata, n. sp., description (*), 25, 465. Traumatic ray-tracheides in Cunninghamia

sinensis (*), 22, 593.

— response in Drimys '(*), 30, 359. Trichodiscus, n. gen., description, 26, 241.

— elegans, n. sp., description, 26, 241 ; mor- phology (*), 26, 239.

Trichomanes Kaulfussii, apospory and apo- gamy (*), 23, 233.

— javanicum, habit (*), 25, 1037 ; morpho- logy of axillary branch (*), 25, 1040 ; stelar anatomy (*), 25, 1038.

Trichosanthes anguina, structure, 29, 583. Tridax procumbens, seedling-structure (*),

28, 314-

Trientalis europaea, insect visitors, 22,635. T rigonocarpeae, origin of integument, 28,73. Trigonocarpus, casts and impressions (*), 21, 127; description, 21, 303; 28, 94; (*),

28, 195; historical resume of British forms, 21, 94; relationship with Ginkgo, 30, 356.

— clavatus, description (*), 28, 85, 95. Dawesi, description (*), 28, 85, 95.

— Moyseyi,«. sp., description (*), 28, 85, 95.

— Oliveri, n. sp., description (*), 21, 124.

— Parkinsoni, chalazal end of seed (*), 21, 1 1 1 ; characters (*), 21, 96 ; descriptions of forms (*), 28, 84, 94 ; inner flesh, 21, no ; micropylar end of seed (*), 21, 1 15 ; nucellus (*), 21, 119 ; pollen chamber (*), 21, 1 19; sarcotesta (*), 21, 99; sclero- testa (*), 21, 106 ; testa (*), 21, 99 ; wing of seed (*), 21, 1 15.

— shorensis, n. sp., comparison with other

types, 28, 62 ; diagnosis, 28, 76 ; general features (*), 26, 41 ; nucellus (*), 28, 59 ; origin of integument in Trigonocarpeae and Lagenostomales, 28, 73 ; pollen

chamber (*), 28, 6 1 ; relation to vegeta- tive organs, 28, 76 ; testa (*), 28, 44, 68 ; vascular organization (*), 28, 52.

Tristichaceae and Podostemaceae, origin of,

29, 299.

Triticum, vitality and self-digestion of endo- sperms, 22, 457.

— vulgare, embryo development (*), 23, 133; endosperm (*), 23, 125; nuclear dis- organization in endosperm, 23, 131 ; seedling-anatomy (*), 29, 199 ; starch in- filtration into endosperm (*), 23, 126 ; strength and development of grain (*), 23,ii7.

38

Annals of Botany .

Triuridaceae, new (*), 21, 71. Trolliusasiaticus, seedling-anatomy, 28,707.

— europaeus, insect visitors, 22, 620. Tropaeolum, amylase content, 25, 1197.

— majus, effect of chloroform on respiratory exchanges (*), 27, 710; pollination and respiratory activity, 21, 494.

— per/egrinum, hair production on stem and petiole (*), 26, 589.

Tropics, subaerial and freshwater algal flora, 21, 235.

Tsuga, spp., seedling-structure, 23, 190. Tuber aestivum, description, 23, 256.

— bituminatum, description, 23, 256.

— brumale, description (*), 23, 259.

— dryophilum, description, 23, 258.

— excavatum, description (*), 23, 257.

— ferrugineum, description, 23, 260.

— foetidum, description, 23, 257.

— intidum, description, 23, 260.

— macrosporum, description, 23, 257.

— puberulum, description, 23, 258.

— rapaeodorum, description, 23, 258.

— rufum, description, 23, 259.

— saleroneuron, description, 23, 260.

T uberaceae, affinities and structure of British (*), 23, 243.

— British, descriptions (*), 23, 248 ; geo- graphical distribution, 23, 246 ; habitats,

23, 247 ; key to families, 23, 248. Tubercle of Echinopsis (*), 24, 144; vas- cular arrangement with cotyledons (*),

24, 146.

Tubereae, description (*), 23, 250 ; key to genera, 23, 250.

Tubers, anatomy (*), 24, 537.

Tubiflorae, seedling-anatomy (*), 26, 727. Tumamoca, water-balance (*), 26, 83. Tumours on Veronica Chamaedrys caused by Sorosphaera Veronicae (*), 24, 35.

T unica prolifera, seedling-structure, 26, 1 80.

U.

Ulex europaeus, seedling-structure, 27, 810 ;

tripartite and other leaves of, 28, 527. Ulodendroid scar, structure and origin (*), 28, 481*

Ulodendron, description (*), 28, 489 ; dis- cussion, 28, 493.

Ulotrichales in the tropics, 21, 257. Ulvaceae, attaching discs (*), 26, 403. Umbelliflorae, stem-anatomy (*), 29, 55. Undaria, embryonal stages (*), 25, 704 ; mucilage glands (*), 23,613; post-embryo- nal stages (*), 25, 707.

— pinnatifida, forms of, 25, 708.

Uredineae, general account, 21, 443.

Uredo mycelia of cereal rusts, development

(*), 21, 441.

— spp., see under Puccinia.

Urtica dioica, insect visitors, 22, 648. Urticales, seedling-structure, 30, 595.

Ustilaginoidella graminicola causing rice disease (*), 25, 367.

— oedipigera causing Elephantiasis of banana (*), 25, 363.

Utricularia of Great Britain, species of (*), 27, 607.

— emarginata, bladders (*), 24, 554; con- ditions of germination, 24, 550 ; morpho- logy (*), 24, 549, 554 5 notes on, 23, 339 ; seed and germination (*), 24, 550.

— ochroleuca, biology and morphology (*), 27, 609 ; geographical distribution in Great Britain, 27, 617 ; historical, 27, 608.

Uvaria zeylanica, vascular anatomy (*), 22, 671.

V.

Vaccinium oxycoccus, insect visitors, 22,

619.

Valeriana officinalis, insect visitors, 22, 607.

Variation in Anemone nemorosa (*), 30, 525 ; in sexual organs of Saprolegniaceae

H, 22, 361.

Varietal ferns, cytology (*), 24, 191.

Vascular anatomy of Akebia lobata, 22, 674; Anemone japonica, 22, 657 ; Anona- ceae (*), 22, 670 ; Artabotrys odoratis- simus, 22, 670 ; Berberidaceae (*), 22, 673 ; Berberidopsis corallina (*), 22, 674 ; Berberis aquifolium, 22, 674 ; Calycan- thaceae, 22, 668 ; Cananga odorata (*), 22, 672 ; Clematis, spp. (*), 22, 661 ; Drimys, spp., 22, 667 ; Epimedium pin- natum (*), 22, 674 ; Eupomatia Bennettii, 22, 671; Helleborus, spp. (*), 22, 659; Hydrastis canadensis (*), 22, 675; Illicium floridanum (*), 22, 667 ; Magnolia tripe- tala, 22, 665 ; Magnoliaceae (*), 22, 665 ; Monodora myristica, 22, 671 ; Nandina domestica (*), 22, 674 ; Paeonia, sp. (*), 22, 663 ; Paeoniaceae (*), 22, 663 ; Podophyllum peltatum (*), 22, 673;

Polyalthia suberosa (*), 22, 670 ; Ranales (*), 22, 651 ; Ranunculaceae (*), 22, 657 ; Thalictrum flavum (*), 22, 658; Uvaria zeylanica (*), 22, 671.

Verbascum pulverulentum, seedling-ana- tomy, 26, 738.

Veronica, spp., insect visitors, 22, 610; seed- ling-anatomy, 26, 740.

— chamaedrys, tumours caused by Soro- sphaera Veronicae (*), 24, 35 ; chrorni- dial or akaryote stage (*), 24, 38 ; infection, 24, 39 ; nuclear division of vegetative phase (*), 24, 37 ; plant nucleus (*),24, 41 ; structure of tumour (*), 24, 40.

Verrucaria margacea, cultural experiments (*), 28, 245 ; external characters (*), 28, 241 ; nomenclature, 28, 245 ; reproduction (*), 28, 243 ; systematic position, 28, 245 ; thallus structure (*), 28, 242.

Verticillium albo-atrum, cause of blindness in potato tubers, 26, 129.

Index to Vo is. XXI-XXX.

39

Vessels, diameter and length of, in Acacia, 24, 94 ; in Deeringia altissima, 24, 97 ; in Eucalyptus, 24, 96 ; in Ficus elastica,

24, 97 ; in Nerium Oleander, 24, 97 ; in Tecoma, 24, 97.

Vicia Faba, aerating system (*), 29, 627 ; behaviour of chromatin in meiotic divi- sions (*), 28, 633 ; mitosis in gametophyte (*), 25, 848 ; mitosis in sporophyte (*),

25, 845 ; question of heterotypical re- duction in somatic cells (*), 24, 788.

Vines, S. H. : Harry Marshall Ward (*), 21, ix.

— The Proteases of Plants. V. 22,103.

— Id. VI. 23*, 1.

— Id. VII. 24,213.

Viola, archesporium and tapetum (*), 26, 157 ; axial row (*), 26, 157 ; development of chasmogamic flowers (*), 26, 155; female gametophyte (*), 26, 158 ; ovule origin, 26, 157; pollination and pollen- tube development (*), 26, 160; size of flower-bud and stage of development, 26, 156.

Vitaceae, structure of wood (*), 27, 133.

Vitality and self-digestion of endosperm of Gramineae, 22, 449.

Vitis, development of sieve-tubes (*), 22, 274-

Volutin of Saccharomyces (*), 24, 64.

W.

Wager, H. : The Life-history and Cytology of Polyphagus Euglenae (*), 27, 173.

— The Perception of Light in Plants (*), 23, 459.

— and Peniston, A. : Cytological Observa- tions on the Yeast Plant (*), 24, 45.

Walker, N. : On Abnormal Cell-fusion in the Archegpnium ; and on Spermato- genesis in Polytrichum (*), 27, 115.

Wallflower, different types of hair (*), 22, 714-

Ward, F. K. : Some Plant Formations from the Arid Regions of Western China,

26, 1105.

Ward, Harry Marshall, Biography (*),

21, ix.

Water, effect of, on roots, 25, 731.

Water-balance of desert plants (*), 26, 71.

Water-culture, factors, 30, 428 ; interpreta- tion of results, 30, 427 ; limitations, 30, 435 ; relationship between concentration and rate of growth, 29, 89 ; 30, 77.

Water-plants,, transpiration current in sub- merged, 23, 635.

Water-requirements of terrestrial Mono- cotyledons, 25, 724.

Water-storage, organs, 25, 724; in succu- lents, 26, 425.

1 Watson, D. M. S. : On Mesostrobus, a New Genus of Lycopodiaceous Cones

from the Lower Coal Measures, with a Note on the Systematic Position of Spen- cerites (*), 23, 379.

Watson, D. M. S. : On the Structure and Origin of theUlodendroidScar(*),28,48i.

Weed flora of Norfolk, comparison with that of Bedfordshire and the West Country, 27, 154.

Weeds, common and local names, 27, 163.

— and crops, inter-relationship, 27, 155-

— of arable land in relation to soil, 25, 155; 26, 95 ; 27, 141 ; 30, 162;.

Weiss, F. E. : A Stigmaria with Centripetal Wood (*), 22, 221.

Welsford, E. J. : Conjugate Nuclei in the Ascomycetes (*), 30, 415-

— Nuclear migrations in Phragmidium vio- laceum (*), 29, 293.

— The Genesis of the Male Nuclei in Lilium (*), 28, 265.

— The Morphology of Trichodiscus elegans, gen. et sp. nov. (*), 26, 239.

— see Benson, M.

— see Blackman, V. H.

— see Fraser, H. C. I.

Welwitschia mirabilis, embryo (*), 24, 759 ; leaf-structure (*), 27, 347 ; morphology of bracts (*), 27, 547 ; seedling-structure (*), 24, 322.

Wernham, H. F. : The Morphology of Phylloglossum Drummondii (*), 24, 335.

West, C. : On the Structure and Develop- ment of the Secretory Tissues of the Marattiaceae (*)> 29, 409.

— Stigeosporium marattiacearum, gen. et sp. nov., 30, 357.

— and Lechmere, A. E. : On Chromatin Extension in Pollen Mother-cells of Lilium candidum, Linn. (*), 29, 285.

West, G. S., and Griffiths, B. M. : The Lime-sulphur Bacteria of the Genus Hill- housia (*), 27, 83.

White, J. : The Influence of Pollination on the Respiratory Activity of the Gynoecium,

21, 487-

Widdringtonia, spp., seedling-structure (*),

22, 706.

Wigglesworth, G. : The Young Sporo- phytes of Lycopodium complanatum and Lycopodium clavatum (*), 21,

2 1 1.

Willis, J. C. : The Distribution of Species in New Zealand (*), 30, 437.

— The Evolution of Species in Ceylon, with Reference to the Dying Out of Species, (*), 30, 1.

— The Origin of the Tristichaceae and Podostemaceab, 29, 299.

— and Burkill, I. H. : Flowers and In- sects in Great Britain. Part IV. Observa- tions on the less Specialized Flowers of the Clova Mountains, 22, 603.

Wilson, M. : On Spore Formation and

40

Annals of Botany.

Nuclear Division in Mnium hornum (*), 23, 141.

Wilson, M. : Preliminary Note on Nuclear Division in Mnium hornum, 22, 328.

— Preliminary Note on the Spermatogenesis of Mnium hornum, 24, 235.

— Plant Distribution in the Woods of North- east Kent. Part I (*), 25, 857.

— Sex Determination in Mnium hornum (*), 29, 433.

— Spermatogenesis in the Bryophyta (*),

25, 415.

Wilting, stomatal behaviour during (*), 30, 47-

Winge, O. : see Ferdinandsen, G.

Wistaria, development of sieve-plate (*), 22, 270.

Wood, origin of herbaceous type in Angio- sperms (*), 25, 215.

— of Dicotyledons, evolutionary history and phylogenetic significance of foliar ray (*),

26, 647.

— of Larix, effect of defoliation on growth and structure of (*), 27, 621.

Woodburn, W. L. : Spermatogenesis in Blasia pusilla (*), 27, 93.

— Spermatogenesis in certain Hepaticae (*), 25, 299.

— Spermatogenesis in Mnium affine, var. ciliaris, (Grev.) G . M. (*), 29, 441.

Woods of North-east Kent, plant distribu- tion n, 25, 857.

Woodsia, phyletic consideration (*), 26, 306.

Woodwardia, phylogeny (*), 28, 401.

Woody plants, distribution of chlorophyll in young shoots (*), 21, 437.

Woolery, R.: Meiotic Divisions in the Microspore Mother-cells of Smilacina racemosa, (L.) Desf. (*), 29, 471.

Worsdell, W. C.: A Study of the Vascular System in certain Orders of the Ranales (*), 22, 651.

— Internal Phloem in Myristica (*), 22, 526.

— The Morphology of the ‘Gorona* of Narcissus {*), 28, 541.

— The Morphology of the Monocotyle- donous Embryo and that of the Grass in particular (*), 30, 509.

— The Origin and Meaning of Medullary (Intraxylary) Phloem in the Stems of Dicotyledons. I. Cucurbitaceae (*), 29,

567.

Wound reactions in filicinean petioles (*), 26, 777; in Pteris aquilina (*), 30, 127.

X.

Xanthium strumarium, seedling-structure, 28, 309.

Xenoxylon, spp., structure of wood (*), 27, 535.

Xeromorphy in marsh plants (*), 26, 815.

Xerophilous species of Cheilanthes and Pel- laea, anatomy (*), 28, 671.

Xerophytes, resume and hypothesis on swamp, 26, 854.

Xerophytism of Coniferae, rationale of, 24, 260.

Xylem elements of Pteridophyta (*), 25, 745.

physical tests for, 25, 748.

— of Equisetum, centripetal (*), 23, 587.

-- of Ophioglossaceae, primary (*), 25, 537.

— of petioles of Cycads, the centripetal and centrifugal (*), 28, 103.

Y.

Yapp, R. H. : On Stratification in the Vegetation of a Marsh, and its Relations to Evaporation and Temperature (*), 23, 275.

— Spiraea Ulmaria, L., and its Bearing on the Problem of Xeromorphy in Marsh Plants (*), 26, 815.

Yasui, K. : On the Life-history of Salvinia natans (*), 25, 469.

— see Miyake, K.

Yendo, K. : Development of Costaria, Un- daria, and Laminaria (*), 25, 692.

— On the Mucilage Glands of Undaria (*), 23, 613.

Yezonia, external form, 24, 767 ; internal structure (*), 24, 768 ; stomata (*), 24, 768 ; structure of axis (*), 24, 769.

— a reply to criticism, 25, 269.

Z.

Zaluzianskya capensis, seedling-anatomy, 26, 740-

Zea, respiration of seeds, 22, 427 ; seed- ling-anatomy (*), 29, 19 1 ; vitality and self-digestion of endosperm, 22, 454.

Zinc, action of compounds of, on growth of plants (*), 28, 284.

Zingiberaceae, seedling-anatomy (*), 29, 209.

Zinnia pauciflora, seedling-structure, 28, 311.

Zizania aquatica, seedling-anatomy (*), 29, 179-

Zoospore formation in Characium Sieboldii (*), 30, 459 ; in Pediastrum Boryanum (*), 30, 467.

Zygnema ericetorum, morphology and eco- logy of an extreme terrestrial form (*), 30, 135.

cell contents (*), 30, 136; cell wall

(*), 30, 139; comparison of forms, 30, 147 ; reaction to drought (*), 30, 14 1.

Zygnemaceae in the Tropics, 21, 260.

Zygopteris Grayi, affinities, 26, 61 ; an ankyropteris, 26, 55 ; aphlebiae (*),26,5o, 60 ; leaf-trace emission (*), 26, 47 ; leaf- trace morphology and structure (*), 26, 45, 57 ; petiole (*), 25, 451 ; roots (*), 26, 52 ; stelar structure (*), 26, 44, 49, 57 ; the Shore specimen (*), 26, 43.

Zygospores of Sporodinia grandis, cytology (*), 28, 455-

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