INDEX TO PLANT STRUCTURES 



[The italicized numbers indicate that tlie subject is illustrated upon the page cited. 

 In such ca.se tlie subject may be referred to only in the illustration, or it may be 

 referred to also in the text.l 



Absorption, 399. 



Acacia, ^G5. 



Aoonitum, 261. 



Acorus, ^19, 243. 



Actinomorphy, 228. 



Adder's tongue : see Ophioglossuin. 



Adiantum, 143, 14S. 



.aScidiomyeetes, 50, 62. 



^oidiospore, 86. 



^cidium, 66. 



Agaricus, GS, 09. 



Agave, 247. 



Air pore : see Stoma. 



Akene, 312, ^1.3, SU, 276, 277. 



Alehemilla, 2J5. 



Alder : see Aliius. 



Algffi, 4, 5, 17. 



Alisma, SIO, 240. 



Almond : see Prunus. 



Alnus, 257. 



Alternation of generations, 94, 129. 



Amanita, 70. 



Amaryllidaceae, 247. 



Amaryllis family : see Amarylli- 



daces. 

 Ambrosia, 279. 

 Ament, SS7. 

 Anaptychia, 81, 82. 



Anemophilous, 181. 

 Angiosperms, 173, 195, 217. 

 Anisocarpaj, 268. 

 Annulus, 136, 146, 150. 

 Anther, 196, 197, 199. 

 Antheridium, 16, 99, 100, 112, 121, 



133, 134, 161, 166. 

 Antherozoid, 16. 



Anthoceros, 104, 105, 111, 116, 118. 

 Anthophytes, 172. 

 Antipodal cells, 202, 205, 208. 

 Antirrhinum, 2C'S, 275. 

 Ant-plants, 90, 91. 

 Apical cell, 134. 

 Apical group, 283. 

 Apium, 367. 

 Apocarpy, 199, 222, 225. 

 Apocynacese, 271. 

 Apocynum, 272. 

 Apogamy, 131. 

 Apospory, 132. 

 Apothecium, 79, 81, 82. 

 Apple: see Pirus. 

 Aquilegia, 198. 

 Araceae, 243. 

 Araliaceae, 267. 

 Araucaria, 190. 

 Arbor vitse : see Thuja. 

 Arbutus, 198 : see Epigaea. 

 Archegoniates, 101. 

 337 



