49.3 



Archidiuin, archesporium, 

 179; calyptra, 177 ; cap- 

 sule, 177, 185 ; embryo, 

 178, 180 ; seta, 177 ; spore, 

 177, 186; sporogonium, 

 143, 144. 



Archidium phascoides, Figs. 

 140, 141. 



Arcyria incarnata, fructifica- 

 tion, 14. (Fig. 7.) 



Aril, 305, 382, 430 note. 



Arisarum vulgare, 28. 



Aristolochia, anthers, 354 ; 

 perianth, 349 ; protogyny, 

 405. 



Aristolochia Sipho, 451. 



Aristolochiaceae, 472 ; en- 

 dosperm, 460 ; gynoste- 

 mium, 359. 



Armeria vulgaris, endosperm, 



399- 



Arnoldia, 125. 



Aroideae, embryo-sac, 441; 

 end<isperm, 441, 444; 

 floral envelope, 349 ; 

 flower, 399, 439 ; inflores- 

 cence, 406, 407 ; leaves, 

 436, 437 ; ovules, 441 ; 

 pollen, 405 ; spathe, 353 ; 

 vascular bundles, 443 ; 

 venation, 435. 



Arthonia, 119. 



Arthonia punctiformis, 119. 



Arthonia vulgaris, 119. 



Arthropitys, 272 note. 



Arthrotaxis, 339. 



Artocarpeae, 468. 



Arum maculatum, pollina- 

 tion and fertilisation, 390. 



Asarineae, endosperm, 460. 



Asarum, floral formula, 459. 



Asarum canadense, Fig. 

 268. 



Asclepiadaceae, 471. 



Asclepiadeae, anthers, 369 ; 

 inflorescence, 411; fila- 

 ment, 354, 355 ; fruit, 

 428 ; seed, 445 ; stigma, 

 380. 



Asclepias syriaca, 430, 451. 



Ascobolus, sporocarps, 9. 

 (Figs. 6, 63.) 



Ascobolus furfuraceus, no, 

 III. (Fig. 68.) 



Ascobolus pulcherrimus, 1 12. 



Ascogone, 100, loi, no, 121, 



Ascomycetes, 13, 100 ; affini- 

 ties and characteristics, 

 100, 10 1 ; alternation of 

 generations, 9 ; apogamy, 

 102 ; archicarp, 8 ; asexual 

 reproduction, 103 ; divi- 

 sion, 103 ; fructification, 

 IC2, 103; place in system, 



84 ; sexual reproduction, 



101, 102 ; spermatia, 104 ; 



spores, 103. 

 Ascospore, loi, 103. 

 Asexual reproductive organs, 



10. 

 Asphodehis luteus, aril, 382. 

 Aspicilia calcarea, 119. 

 Aspidieae, 227. 

 Aspidium, 200. 

 Aspidium cariaceum. Fig. 



178. 

 Aspidium decussatum, Fig. 



159. 

 Aspidium falcatum, apogamy, 



206. 

 Aspidium Filix-femina, Fig. 



162. 

 Aspidium Filix-m;is, adventi- 

 tious buds, 212; apical 



cell, 210; branching, 211; 



fundamental tissue, 220; 



phyllotaxis, 211 ; prothal- 



lium, 200 ; roots, 208, 214 ; 



stem, 208. (Figs. 158, 163, 



164,166,177.) 

 Aspidium F"ilix-mas, var. cris- 



tatum, apogamy, 206, 207. 

 Asplenieae, 227. 

 Asplenium, 227. 

 Asplenium alatum, antheri- 



dial cell, 202 note. 

 Asplenium decussatum, buds, 



213. 

 Asplenium furcatum, adven- 

 titious buds, 212, 213. 

 Asplenium Trichomanis, Fig. 



165. 

 Asterophyllites, 193, 195, 



273. 

 Astragalus, fruit, 427; ovary, 



374- 

 Astrapaea, pollen-tube, 367. 

 Astrocarpus, ovule, 384 ; 



flower, 422. 

 Atalanthera, floral diagram, 



416. 

 Atherurus, 437. 

 Atherurus ternatus, gemmae, 



434. 

 Athyrium Filix-femina, var. 



clarissima, 208, note 2. 

 Atrichum,underground buds, 



172 ; rhizoids, 170; stem, 



167. 

 Atrichum (Catharinea), un- 



dulatum. Fig. 121. 

 Aulacomnion, scale-leaves, 



168. 

 Aulacomnion androgynum, 



gemmae, 174. 

 Aulophyte, 28 note. 

 Autoecious, of parasites, 128, 

 Auxosporcs (Diatoms), 1 8, 1 9. 



Aviccnnia, stem-structure, 

 466. 



Axial placcntation, 376, wo/fi. 



Axillary ovules, 385 twte. 



Azolla, embryo, 233, 234; 

 macrospore, 239 ; prothal- 

 lium, 232 ; roots, 235, 

 236; secondary growth, 

 234 ; sporangia, 237, 238 ; 

 sporophytc, 191 ; sporo- 

 carp, 237. 



Bacillariaccae. See Diatoma- 

 ceae. 



Bacillus, 25. 



Bacillus Amylobacter, 26. 



Bacillus subtilis, 26. 



Bacillus Ulna, 26. 



Bacteria, 24. 



Bacteria, Ray Lankester on 

 Cohn's genera, 25 note. 



Bacterium, 25. 



Bactrospora, 123. 



Balanophoreae, 1 2, 472 ; em- 

 bryo, 446, 461 ; embryo- 

 sac, 460 ; ovules, 385, 460. 



Balantium, 227. 



Balsamineae, 469 ; floral dia- 

 gram, 419, 456." 



Bambusa, floral diagram, 

 419 ; flower, 439, 



Bangia, 74 ; sexual repro- 

 duction, 77. 



Bangiaceae, 77 ; freshwater 

 species, 77 and note. 



Bangieae, fertilisation, 7. 



Barbula, peristome, 188; 

 vegetative propagation, 

 171. (Figs. 123, 124.) 



Barbula aloides, stem, 167 ; 

 leaf-hairs, 168. 



Barbula muralis, rhi/.oid- 

 buds, 172. 



Barbula ruralis. Fig. 118. 



Bark, 509, 463. 



Bartramia, stem, 167. 



Basidia, 83, 132. 



Basidiomvcete in a Lichen, 

 82. 



Basidiomycetcs, 13, 131 ; 

 development, 135, 136; 

 division, 132; fructifica- 

 tion, 131 ; gonidia, 81, 131, 

 132 ; habitat, 132 ; place 

 in system, 84 ; spores, 

 131,132. 



Basidiospores, 131, 



Batrachospernuim, 74 ; ger- 

 mination, 75 ; habitat, 76 ; 

 spcrmatioii, 76. 



Bauhinia, stem, 466. 



Bcggiatoa, 25. 



Beggiatoa alba, 25. 



Begonia, stem, 4') 5. 



