350 



INDEX 



Axial system, polycyclic, of Saccoloma ele- 



gans, 153 (Fig. 146) 

 Axillary bud, 76 ; bud of TricJiomanes ra- 



dtcans, 70 (Fig. 63); position, 70 

 Axis, 344 ; arrangement of leaves on, 67 ; 



relation of leaf to, 315 ; vascular system 



of, 140 

 Azolla^ 48, 261 ; massula of, in young state, 



showing glochidia, 269 (Fig. 264) 



A. filiculoides^ megasporangium of. 268 

 (Fig. 263) 



Basal indusium, 237 ; pole, abortion of, 346; 



wall, 19, 301 

 Basipetal sorus, 212 

 Bifurcated trunk of Cyathea medullaris, 158 



(Fig. 152) 

 Bisexual archegonia of Mmum cuspidatiwt, 



290 (Fig. 280) 

 Blechnoid fusion-sorus, disintegration of, 



230 (Fig. 228) 

 Blechnum, ilange in species of, 239 (Fig. 



237); indusium of, 238; mucilaginous 



hairs of, 197 (Fig. 185) 



B. longifoliuni, fusion-sorus of, 229 (Fig. 

 227) ■ 



B. punctulatiun^ Sw. var. Krebsii^ 230 



(Figs. 228, 229), 231 (Fig. 229) 

 B. tabulare, 29 (Fig. 35) 



Blepharoplast, 286 



Botrychioxyloii, 137 



Bolrychiuvi^ 131 ; young plant of, 184 

 B. daticifoliitni^ sporangium of, 247 (Fig. 



242) 

 B. Lunaria^ embryo of, 306 (Fig. 292); 

 meduUation of, 125 (Fig. 119); olcl 

 embryo of, 307 (Fig. 293) ; reconstruc- 

 tion of stelar structure of, 131 (Fig. 

 124); seedling of, 307 (Fig. 293); spor- 

 angia of, 208 (Fig. 198) 

 B. obliqmnn, 306; suspensor of, 305 ; 



young sporophyte of, 305 (Fig. 289) 

 B. virginianum^ stele of, 137 (Fig. 129) 



Botryopteris cylindrical 121 (Fig. 114), 161 

 (Fig. 153); transverse section of stem 

 of, 182 (Fig. 174) 

 B.forensis, equisetoid hairs of, 199 (Fig. 

 187) ; solid xylem-core of, 127 



Bracken {Pteridiiiin aquilimim), meristele 

 of, 5 (Fig. 4), 6 (Fig. 5); rhizome of, 4 

 (Fig. 3) 



Bramble Ferns, 39 (Fig. 44), 171 



Branching, 69, 79; anadromic helicoid, 88; 

 catadromic helicoid, 88 ; dichopodial, 

 89; helicoid, 88; monopodial, 91 ; ter- 

 minal, dichotomous, 2)37 



Bud, axillary, 76 



Budding, gametophytic, 15, 320; sporo- 

 phytic, 206, 320 



Buds, 69, 70 ; adventitious, 72, 79 ; adven- 

 titious, of Cystopteris biilbifera, 72 (Fig. 

 66) ; extra-axillary, 70 



Bulk, proportion of surface to, 177, 181 



Cambial inci-ease, 178 



Canal-cell, 17, 18 (Fig. 21) 



Cap-cells, 293 



Capsule of sporangium, 242 



Caspary-band, 185 



Catadromic helicoid branching, 88 



Cauline stele, 139; vascular system, 139 



Cell, apical, 106, 107; apical, segments of, 

 107, III (Fig. 107); embryonic, 300; 

 opercular, 287 (Fig. 277) ; opercular, 

 single, 293 



Cell-cleavages, embryology based upon, 

 -99. . 



Cells, initial, 105, 107, 109; marginal, 109; 

 of endodermis, 186 (Fig. 177); sporo- 

 genous, 257 



Cellular construction, 105 ; segmentation of 

 embryo, 314 



Ceratoptcris^ young leaf of, 9 (Fig. 11) 

 C. thalictroides, 324 



Chantransia filaments, 342 



Cheiropleuria^ 138, 233 (Fig. 231); four- 

 rowed stalk of, 254 (Fig. 251); proto- 

 stele of, 122 (Fig. 115); sporophyll of, 

 -2)7) (Fig- 231); two-rowed segmenta- 

 tion of, 246 

 C. bicuspis, 71 (fig. 65) 



Chrisiefjsenia, scales of, 201 ; synangia of, 

 249 



Chromosome-cycle, 22 ; normal, 324 



Chromosome-distinction between genera- 

 tions, 324 



Chromosomes, 21 



Cibotium Baroiiietz^ solenostelic rhizome of, 

 151 (Fig. 142); vascular system of, 170 

 (Fig. 163) 



Ciha, 286 



Classification, early methods of, 57 ; phy- 

 letic, 53 



Cleavages, segmental, in embryo, 299 



Climbing leaf, 38 (Fig. 43) 



Coaxial scheme, 114 (Fig. 113) 



Coenopterideae, 162 



Coenosori, 228 



Commissural arches, 228 (Fig. 225) 



Commissures, 229 



Common vascular system, 139 



Comparison, criteria of, 59; organographic, 

 336 



Compensation strand, 152 



Cone, 179 



Conical form of stele, 180; form of young 

 stem, 179; stem o{ Polypodium vulgare, 

 179 (Fig. 171); stem of Pteris podo- 

 phylla, 187 (Fig. 178) 



Conjunctive parenchyma, 5 



Cordate type of prothallus, 273 (Fig. 

 265) 



Corrugation, 151 ; of solenostele of Htstio- 

 pteris incisa, 151 (Fig. 143) 



