INDEX 



719 



Arisanun, 127. 



Aspidium acrostichoidcs, 24 (Fig. 8). 



Asplenium obttisifoliwn, 583 ; resectum, 583 ; 



shepherdi, 626 (Fig. 347). 

 Assimilatory system in Bryophytes, 662. 

 Astelic state, 192. 

 Asterocalamites, 373 (Fig. 199). 

 Asterochloena.) 501. 

 Asterophyllites, 372. 

 Aslerotheca, 511 (Fig. 282), 521 (Fig. 289); 



Stcrnbergii, $22 (Fig. 289). 

 Athyrinni filix-foemina v. clarissima apos- 



pory 55 (Fig. 37)- 

 Atnc/inm, 35 (Fig. 19). 

 Auricula polystely, 192, 193. 

 Axillary branching in Ferns, 627. 

 Axis pre-existent, 141. 

 Azolla, 176, 610. 



Bartramia,) 281. 



Basal wall, 666 ; indeterminate in Isoetes, 

 358. 



Basipetal sorus, 635. 



Bilateral construction, 201. 



Blechmun, 631 ; B. lanceolata, 632. 



Blechnum boreale differentiation of leaves, 

 167. 



Bornia, 150, 154. 



Bornia radiata, 384. 



Bothrodendron Kiltorchense^ 228. 



Botrychioxylon, 500. 



Botrychitim, external characters, 441 ; spore- 

 producing members, 452 (Figs. 244, 252, 

 253); anatomy, 458, etc. ; prothallus, 469 ; 

 embryo, 269 (Figs. 261-266) ; daucifolium 

 (Figs. 43, 44) ; simplex ', 441 (Fig. 240) ; 

 Lunaria, 441 (Fig. 241); abnormal fer- 

 tility, 1 60 (Fig. 85) ; daitcifoliuin, 441 ; 

 virgi 'nianui/i, 441 ; obliqitutn, 182, 471 

 (Figs. 264-266). 



Botryopterideae, 498, 501 footnote ; phyletic 

 position of, 654 (Fig. 354). 



Botryopferis, sporangia of, 501, 503. 



Bracts or sporophylls, 693. 



Branching of shoot, dichotomous primitive, 

 682 ; transition to monopodial, 682 ; 

 lateral branchings, 682 ; of spikes in 

 Ophioglossaceae, 438 (Fig. 239). 



Braun's criticism of Phytonic theory, 138. 



Bryales, 277. 



Bryophyta, 257 ; balance of alternating 

 generations in, 35. 



Buxbaunria, 281 (Fig. 137). 



Calami tes petty curensis, 390. 



Calamostachys, 150 (Fig. 80) ; 372, 374, 376 

 (Fig. 202) ; morphology of cone, 384 and 

 footnote; Binneyana, 374, 380; German - 

 i ca , 375 5 Casheana, 381 (Fig. 210) ; 

 Zeilleri, 392 ; Binneyana, 408 (Fig. 225). 



Cambial activity, 335. 



Carinal strands of Equisetnm, 388. 



Casuarina, 97 (Figs. 55, 56). 



Catharinea, 35 (Fig. 19). 



Cauline bundles, 195 ; stele, 195. 



Cauloids (Lignier), 136. 



CaulopteriSy 507, 511 (Fig. 280), 625. 



Ceratodon purpuren s, 277 (Fig. 135). 



Ceratopteris, leaf development, 628. 



Cheirostrobus, 230, 404, 424 (Fig. 223, 224). 



Chelepteris, 533, 539. 



Chemiotactic action, 30. 



Chlorophyceae, 70. 



Chorisis of sporangiophores, 695 (Fig. 361); 

 of bracts, 695 (Fig. 361). 



Chromatin, 47. 



Chromosome-cycle, irregularities of, 58. 



Chromosomes, 47 ; their numbers, 48. 



Cingularia, 376 (Fig. 204). 



Cladosiphonic structure, 189, 198. 



Clarkia, 96 (Fig. 54). 



Cleistocarpae, 282. 



Closterittm, 70 (Fig. 40). 



Coleochaete, 73 (Fig. 42), 260. 



Columella of Anthoceros, 268; of Sphag- 

 num, 273. 



Columella-less forms of Notothylas, 270. 



Common bundles, 195. 



Comparative morphology, 5. 



Conjugatae, zygotes of, 70. 



Cordaiteae, early existence of, 228. 



Corsinia, 263. 



Corynepteris, 503 (Fig. 273), 529. 



Cotyledon, variable in time and place of 

 origin, 670; orientation constant, 671. 



Cotyledons, constant orientation of, 182. 



Crossotheca, 528. 



Cutleria, 66. 



Cyatheae, 602 ; phyletic position of, 656 

 (Fig. 354) ; dealbata, sorus, 604 (Fig. 335) j 

 Imrayana, 606 (Fig. 337) ; sorus, 602 ; 

 anatomy, 605 (Figs. 336, 337, 338). 



Cyathodium, 237 (Fig. 116), 263 (Fig. 123). 



Cyathotrachus altus, 521. 



Cycadeoidea, 705. 



Cycads, reduced sporophylls of, 154. 



Cyclanthera, 126. 



