INDEX. 



PART I. MORPHOLOGY, ANATOMY, AND PHYSIOLOGY. 



Abscission-layer, 156. 

 Absorption, 158, 177. 



of gases, 178. 



of liquids, 178. 

 Accumbent, 536. 

 Achene, 473. 

 Achlamydeous, 457. 

 Acicular leaves, 32, 433. 



crystals, 81. 

 Acids, organic, 187. 

 Acrocarpous, 333. 

 Acropetal development of members. 

 9. 



of tissue, 126. 

 Acrotonous, 504. 

 Actinomorphic symmetry, 453. 

 Acuminate, 37. 

 Acute, 37. 



Acyclic flower, 445 (Fig. 262), 527. 

 Adhesion, 21, 462. 

 Adnate, 460. 



Adventitious members, 9, 136. 

 .Ecidiospore, 300. 

 .Ecidium, 300 (Fig. 178). 

 Aerial roots, 45, 109 (Fig. 87). 

 Estivation, 43. 

 Air-bladders, 269. 

 Air-cavity, 108 (Fig. 88), 115. 

 Air-chamber, 89, 321 (Fig. 199). 

 Al, 546 (Fig. 358), 557 (Fig. 369). 

 Albuminous seed, 414 ^Fig. 245). 

 Alburnum, 143, 165. 

 Aleuron, 80 (Figs. 54, 55), 201. 

 Alkaloids, 186, 201. 

 Alternation of generations, 2, 234. 

 Aluminium, 189. 

 Amentum, 442, 517. 

 Amides, 186, 196, 199, 201. 

 Ammonia, 190. 

 Amoeboid stage, 283. 

 Amphigastria, 319. 

 Amphithecium, 136, 316, 337. 

 Amplexicaul, 30. 

 Amygda'lin, 187. 



Amy 1 in, 187. 

 Amylolytic enzyme, 198. 

 Amyloplastic function, 70. 

 Amyloses, 187. 

 Anabolism, 193. 

 Anatomy, 63. 



Anatropous ovule, 399 (Fig, 237). 

 Androscium, 443, 460. 

 Androspore, 258. 

 Anemophilous, 410. 

 Angiocarpous sporophore, 303. 

 Angustiseptal silicula, 535 (Fig. 



348). 

 Annual plants, 417. 



rings, 141 (Figs. 112-3). 

 shoots. 23. 



Annular vessels, 74 (Fig. 44). 

 Annulus, 302 (Fig. 182), 343 (Fig. 



208), 363 (Figs, 215-7), 

 Anterior, 448. 

 Anthela, 442. 



Anther, 395, 460 (Figs. 276, 279), 

 Antheridial cell, 406. 

 Antheridiophore, 310 (Fig. 198). 

 Antheridium, 60, 243, 310, 350, 369 



(Figs. 139, 140, 147, 148, 150, 



158, 160, 192, 193. 222), 

 Anthocyanin, 83. 

 Anthophore, 444, 532 (Fig. 344). 

 Anticlinal, 102. 

 Antipetalous, 447. 

 Antipodal cells, 408 (Fig. 212) 

 Antisepalous, 446. 

 Apex, 4. 

 Apical cell, 101, 104 (Figs. 85, 86), 



132 (Fig. 106), 133, 324 (Fig. 



200). 



Aplanogamete, 240. 

 Apocarpous, 465 (Fig. 281), 472. 

 Apophysis of Moss-capsule, 388. 



of Pmus, 435. 

 Apostrophe, 172 (Fig. 124). 

 Apothecium, 294 (Fig. 177). 

 Aqueous tissue, 115. 



