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. 
