492 



Alsophila, 227. 



Althaea, floral diagram, 458 ; 



polien-mother-cells, 363. 

 Althaea rosea, Figs. 281, 



287, 291, 297. 

 Alyssum montanum, 355. 

 Amanita, velum, 132. 

 Amanita muscaria, 137. 

 Amarantaceae, classification, 

 468; ovule, 378; stem, 466. 

 Amarantus, stem, 466. 

 Amaryllideae, gynaeceum, 



440 ; seed-coat, 394. 

 Amentaceae, 467. 

 Ameri'^tic prothallia, 199. 

 Amoeboid movements, 15. 

 Amorpha, inflorescence, 41 1. 

 Amorphophailus, leaves, 437. 

 Ampelideae, 470 ; floral dia- 

 gram, 457 ; flower, 422 ; 

 seed, 445. 

 Ampelopsis, tendrils, 451. 

 Amphigastria, 145. 

 Amphithecium, 178. 

 Amygdalus, embryo, 446 ; 



ovules, 373. 

 Amylum - bodies (Desmi- 



dieae), 51. 

 Amylum-stars (Characeae), 



56. 

 Anabaena in roots of Cycas, 



314. 

 Anacardiaceae, 469. 

 Anacrogynous (Jungerman- 



nieae), 154. 

 Anagallis,fruit,429; style,379. 

 Anagallis arvensis, F\g. 309. 

 Anaptychia, 125. 

 Anaptychia ciiiaris, 121. 



(Figs. 80, 81.) 

 Anatropous (ovule), 437. 

 Anchusa, dorsiventral or- 

 gans, 451. 

 Andreaea, antheridium, 175 ; 

 archegonia, 141 ; arche- 

 sporium, 179; phyliotaxis, 

 166 ; seta, 177 ; spores, 

 164. (Fig. 129.) 

 Andreaeaceae, 1 8 4;difl"erence 

 Irom typical Mosses, 163. 

 Androecium, 303, 353. 

 Androphore, 359 note. 

 Androphyll, 304. 

 Androspores, 45. 

 Aneimia, 228; sori,2i7; spor- 

 angia, 219; stomata, 220. 

 Aneimia fraxinifolia. Fig. 169. 

 Aneimia hirta, antheridial 



cell, 202 note. 

 Aneimia Phyllitidis, 201. 



(Fig. 149.) 

 Anemophiious flowers, 306. 

 Aneura, growth, 146, 147 ; 

 sexual shoots, 154; sexual 



/NDAX. 



organs, 148 ; spores, 146; 

 thallus, 145. 

 Aneura multifida, Fig. 95. 

 Angiocarpovis Basidiomyce- 



tes, 132. 

 Angiocarpous Lichens, 120. 

 Angiopteris, histology, 255 ; 

 leaves, 209, 253 ; sporangia, 

 253, 254; spores, 254; 

 stem, 231. 

 Angiopteris caudata, Fig.207. 

 Angiopteris evecta, 252. 



(Figs. 205, 206, 208.) 

 Angiospermae, 309. 

 Angiosperms, 346 ; adventi- 

 tious embryos, 401 ; an- 

 droecium, 353; bracteoles, 

 411; branching, 410; con- 

 ducting tissue, 403 ; em- 

 bryo, 395, 396, 398, 399, 

 400; embryo-sac, 386; 

 endosperm, 393, 395, 396 ; 

 fertilisation, 390, 393; floral 

 axis, 347 ; floral diagrams, 

 413 ; floral envelope, 349 ; 

 floral formulae,4 1 9; flower, 

 346, 403, 411, 421, 423; 

 truit, 402, 426, 428 ; rela- 

 tion to Gymnosperms,etc., 

 346; gynaeceum, 370, 372; 

 inflorescences, 405, 407; 

 nectaries,38o; ovaries,372; 

 ovules, 381, 382, 385; peri- 

 sperm, 394; placentation, 

 374 ; pollen, 361, 369 ; pol- 

 len-tube, 366 ; pollination, 

 404; polyembryony, 401; 

 seed, 394, 402, 429, 430; 

 seed-coat, 394 ; stigma, 

 380. 

 Anisocarpae, 471. 

 Anisostemonous flowers, 455. 

 Annual ring, 465 and note. 

 Annularia, 195. 

 Annularieae, 193, 195, 272. 

 Annulus, 186, 194, 216. 

 Anomoeneis sphaerophora, 



18. (Fig. 9.) 

 Anona, pollen-grain, 369. 

 Anonaceae, 468. 

 Anterior (flower), 412. 

 Anthela, 407. 



Anthemis, inflorescence, 411. 

 Anther, 304, 353. 

 Antheridium, 6, 33, 34, 45, 

 47, 52, 57, 60, 69, 95, 134, 



141, 149, 174. 

 Anthoceros, antheridia, 148 ; 



arciiesporia, 153 ; calyptra, 

 157; embryo, 152; muci- 

 lage slits, 145 note; sexual 

 organs, 157 ; sporogonium, 



142, 153, 157, 158; thallus, 

 144. (Figs. loi, 106.) 



Anthoceros giganteus, 153. 



Anthoceros laevis, 156. (Fig. 

 107.) 



Anthoceros punctatus, 156. 



Anthoceroteae, 153, 156; 

 general structure and de- 

 velopment, 156; sexual 

 organs, 157; sporogonium, 

 151, 157- 



Anthurium, embryo-sac, 393. 



Anthurium longifolium, 435. 



Antipetalous (stamens), 413. 



Antipodal cells, 300, 386, 

 413. 



Antirrhinum, fruit, 429. 



Antisepalous (stamens), 413. 



Apetalous flower, 454. 



Aphanocyclae, 468. 



Aphanomyces, 96 ; sexual 

 process, 97, 99. 



Apocarpous, 372 note. 



Apocynaceae, filament, 354 ; 

 stem, 466 ; classification, 

 471. 



Apogamy, 10, 19, 102, 206. 



Aponogeton distachyum, in- 

 florescence, 409. (Fig. 

 359-; 



Apophysis, 188. 



Apospory (Ferns), 208, note 

 2. 



Apostasia, embryo, 431. 



Apostasieae, 445. 



Apothecia, 120. 



Aquilegia, staminodes, 360, 

 (Fig. 392.) 



Aquilegia canadensis, Fig. 



313- 

 Aralia racemosa, stem, 467. 

 Araliaceae, 470; stem, 466. 

 Araucaria, 339; bordered 



pits, 344 ; cone, 328 ; 



female flowers, 326 ; ger- 

 mination, 319; leaves, 321; 



male flowers, 325 ; ovules, 



385 ; pollen-grain, 325. 

 Araucaria brasiliensis, 321, 



338. 

 Araucaria excelsa, 321. (Fig. 



256.) 

 Araucariaceae, 339. 

 Araucarieae, 339 ; flowers, 



322, 326, 331 ; fruit, 338 ; 



vascular bundles, 342. 

 Arbutus hybrida, Fig. 275. 

 Arceuthos drupacea, fruit, 



330. 

 Archegonium, 141, 149, 175, 



190. 

 Archesporium, 142, 152, 



178, 186, 191, 193, 218, 



241, 304, 362. 

 Archicarp, 7, 8, 100, loi, 



105, 106, II I. 



