I C. StaU ColU8« 



INDEX 



Abnormalities, 318 



Abortion of basal pole, 346 



Accessory strands, 1 56 



Acrostichoid derivatives, 232 ; species, 232 ; 



state, 231, 233, 238 

 Acrosttchiini aiireuni^ 146, 239 

 Adiantuni, embryo of, 20 (Fig. 25) 

 Adult plant oi Dryopteris Filix-iiias, Rich., 



26 (Fig. 31) 

 Adventitious buds, 72, 79 ; buds of Cysto- 



pteris biilbifera^ 72 (Fig. 66) ; roots, 1 59 

 Alsopliila blechnoides^ pinna of, 227 (Fig. 



223) 

 A. crtmta, lenticel-like pneumathodes of, 



203 

 Alternating generations, 21 

 Ainphicosmia Walker ae^ 68 (Fig. 60) 

 Amphiphloic solenostely, 141, 145 

 Anadromic helicoid branching, 88 

 Analysis, morphological, 66 

 Anatomical memoirs, list of, 193 

 Anatomy, vascular, 192 

 Anemia adiantifolia^ juvenile leaves of, 85 



(Fig. n) 

 A. phy nitidis, young plant of, 125 (Fig. 



^^«) . 



Angtopteris, stipules of, 100 (Fig. 96); wings 



of leaves of, 112 (Fig. 109) 



A. evecta, apex of stem of, 113 (Fig. 112); 



sporangium of, 250 (Fig. 244) 



Angular leaf, 73 



Ajtkyropteris Grayi, 68 (Fig. 59) ; stele of, 

 123 (Fig. 117), 182 



Annulus, 13, 14 (Fig. 17), 242, 249, 251, 255 

 (Fig. 250); many-rowed, 252; oi Lox- 

 soina, 255 ; position of, 254 (Fig. 250); 

 single-rowed, 252 ; vestigial, 255 



Anogramme chaeropliylla, perennation in, 

 276 

 A. leptophylla, 33 



Antheridia (male organs), 15, 17 (Fig. 20); 

 of various Ferns, differences in number 

 of spermatocytes in, 291 (Fig. 281); of 

 various Ferns seen in surface view, 

 293 (Fig. 283) ; of Woodsia ilvensis, 

 287 (Fig. 277) ; parallel between, and 

 sporangia, 296; position of, 278; seg- 

 mentation of, 293 (Fig. 282) 



Antheridium of Marattia Doiiglasii, 288 

 (Fig. 278) ; of Matteuccia Strnthio- 

 pteris^ 285 (Fig. 276); ol Ophioglossuni 

 penduhnn, 288 (Fig. 278) 



Apex of leaf of Osiiiunda, in (Fig. 108); 



of root of Pteridium, 10 (Fig. 12); of 

 stem of Angiopteris evecta, 113 (Fig. 

 112) ; of stem of Osmunda regalis, 9 

 (Fig. 10); of stem of Trichomanes ra- 

 dicans, 107 (Fig. loi) 



Aphlebiae, 99 (Fig. 95) 



Apical cell, 106, 107 ; cell, segments of, 107, 

 III (Fig. 107); meristem, 9; meristem 

 of leaf of Zygopteris corrttgata, 109 

 (Fig. 104); segmentation, 115 



Apices of pinnules of Osmunda regalis, van 

 cristata, ^t.^, (Fig. 307) 



Apogamous growth in Nephrodium pseudo- 

 mas, va.r. polydactylum, 325 (Fig. 302) 



Apogamy (apomixis), 24, 320, 323; in A'e- 

 phrodium pseudo-mas, var. cristatuin, 

 322 (Fig. 297); in Pteris cretica, 3119 

 (Fig. 295); in Scolopendrium vulgarr, 

 322 (Fig. 298) 



Apomixis (apogamy), 24, 320 



Apospory, 24, 320 (Fig. 296), 321 (Fig. 296 

 cont.), 323 ; in Nephrodiu7npsetcdo-tnas, 

 var. cristatum, 322 (Fig. 297) 



Appendages, dermal, 61 



Archegonia (female organs), 15 ; bisexual, 

 of Milium cuspidatum, 290 (Fig. 280) ; 

 of Marattia Douglasii, 287, 288 (Fig. 

 278); of Mnium, 289 (Fig. 280); of 

 Nephrodiu)n dilatatinn, 323 (Fig. 299); 

 of Ophioglossum pendubim, 287, 288 

 (Fig. 278); o{ Polyp odium vulgare, 18 

 (Fig. 21) ; position of, 278 



Archegoniophore of Trichojuanes pyxidi- 

 ferum, 282 (Fig. 272) 



Archegonium of Matteuccia Struthiopteris, 

 288 (Fig. 279); standardised, 296 



Arches, commissural, 228 (Fig. 225) 



Archesporium, 242, 257 



Archetype for Class, 336, 339 



Architecture of leaf, 61, 81 



Armature, 202 



Aspidiuni anomalum, sori of, 225 



A trifoliatuin, spores of, 261 (Fig. 257) 



Aspletiium nidus, epiphytic Nest Fern, 45 

 (Fig. 52) 

 A. Trichomanes, sporangia of, 245 (Fig. 

 239) 



Asterocalatnites scrobiculatus, 103 (Fig. 98) 



Asterochlaena laxa, stele of, 183 



Athyriuni (Lady Fern), 26 



A. Filix-foemina, var. clarissima, apo- 

 spory of, 32o(Fig. 296); diploid through- 

 out, 326 



