INDEX AND GLOSSARY 



Numbers in parenthesis refer to paragraphs 



Aborted: crowded out, (291). 



Abronia, Fig. 19. 



Absorption by roots, 70. 



Abutilon striatum. Fig. 461; Thorn psoni, 

 341; avicenna?, 341. 



Acacia, 104, 105, Fig. 151. 



Accessory buds: more than one in an 

 axil, (87). 



Accessory fruit: other parts grown to 

 the pericarp, (286), 153. 



Acer, 344, Figs. 464-7. 



Acetic acid, 246. 



Achillea millefolium, 406. 



Acids, 246. 



Acclimatization: adaptation to a cli- 

 mate at first injurious, (339). 



Acorn, 147. 



Acorus, 296. 



Aetata, 327. 



Acuminate: taper-pointed, (199). 



Acute: sharp-poi'ited, (199). 



Adder's-tongue, 298; fern, 191, Fig. 341. 



Adiantum pedatum, 291, Fig. 309. 



Adventitious buds: those appearing on 

 occasion, (54, 123). 



jEcidia, 185. .^cidiospore, 185. 



Aerial roots, 10. 



.feculus, 346. 



Ageratum conyzoides, 405. 



Aggregate fruit: one formed by the co- 

 herence of pistils which were distinct 

 in the flower, (296). 



Agrimonia, 355. 



Agrimony, 162, 355. 



Ailanthus buds. Fig. 53; fruits, 160. 



Air-plants, 12, 88. 



Akene: dry, indehiscent 1-seeded peri- 

 carp, (288). 



Alcanin, 241. 



Alcohol, 241. 



Alder, black, 313; smooth, 313; specklsd 

 313. 



Aleurone grains, 249. 



Alfalfa, 352, Fig. 470. 



Algae, 176, 178, 235. 



Alkaloids, 246. 



Almond bud, 39, Fig. 64. 



Alnus glutinosa, 313; incana, 313; ru- 

 gosa, 313. 



Alpine plants, 220. 



Alsike clover, 351. 



Alternation of generations, 174. 194. 



Althffia rosea, 340, Figs. 206, 207, 235. 



Alyssum maritimum, 152, 336, Fig. 460. 



Amaranthus, 163. 



Amaryllidacea?, 303. 



Ambrosia, 405, Fig. 497 



Amelanchier, 359. 



Amceboid, 235. 



Ampelopsis, leaves of, 95, Fig. 142. 



Amphibious, 199. 



Amylo-dextrine, 249. 



Anacharis. experiment with, 78, 235. 



Analogy, related in function or use, 

 (211). 



Anaphalis, 412. 



Anaphase, 240. 



Anemone, 324; fruit, 148. 



Anemonella, 324. 



Anemophilous: pollinated by wind, 

 (267). 



Angelica, 367. 



Annual: of one season's duration, (10). 



Angiosperms, 294. 



Antennaria, 412. 



Anther: pollen-bearing part of the sta- 

 men, (254). 



Anthemus, 406. 



Antheridia, 174, 180. .\ntheridiophore, 

 187. 



Anthodium: flower-head of the Com- 

 posita>, 116. 



Antirrhinum majus, 374, Fig. 220. 



Antitropic: against the sun, (231"). 



Apetalous: petals missing, (257). 



Aphyllon, 85, Fig. 118. 



Apical: at the apex or top, (292). 



Apios, 353. 



Apocynaceae, 386. 



Apparatus, 240. 



Apple, 359, Figs. 267, 268; acid, 246; an- 

 ther, 129; bud, 36, 40, Fig. 67; bud- 

 variation, 229; cells, 233, 234; fruit, 

 155, Fig. 268; infloresence, 118, Fig. 

 267; leaf -scar, 37; -pear graft, 28; 

 phyllotaxy, 48, 49; thorns, 104; tree, 

 15, Fig. 18. 



Apricot bud, 37, 39, 356, Figs. 51, 65, 

 477. 



Aquatic, 198. 



Aquilegia, 326, Fig. 458. 



Arabis, 334. 



(415) 



