INDEX. 



The English names are given in common small letters, the Latin generic 

 names in italic, and the names of Tribes, Families, Orders, and the higher 

 divisions, in small capitals. 



Abies, 9 

 Abronia, 122 

 Abutilon, 231 

 Acer, 226 

 ACERACE^E, 226 

 Acerates, 270 

 Achillea, 382 

 Achyropappus, 377 

 Acnida, 121 

 Aconite, 139 

 Aconitum, 139 

 Acorus, 74 

 Acroanthes, 89 

 Acrolasia, 236 

 Actaa, 135 

 Actinella, 379, 380 

 Acuan, 194 

 Adder's Mouth, 89 

 Adder's-tongue, 83 

 Adder's-Tongue Family, i 

 Adelia, 264 

 Adenostegia, 318 

 Adopogon, 404 

 Adoxa, 324 



ADOXACE^E, 324 

 JEgilops, 55 

 Agastache, 296 



Agoseris, 407 



Agrimonia, 189 



Agrimony, 189 



Agropyron, 52 



AGROSTIDE^;, 23 



Agrostis, 30 



Alder, 97 



Aletes, 252 



Alexanders, 252 



Alfalfa, 202 



Alfilaria (Er odium) 



Alisma, 14 



ALISMACE^E, 14 



ALISMALES, 13 



Alkali-grass (Distichlis) 



ALLIACE^E, 81 



Allionia, 123 



ALLIONIACE^E, 122 



Allioniella, 123 



Allium, 81 



Allocarya, 288 



Alnus, 97 



Alopecurus, 28 

 ALSINACE^E, 127 

 Alsine, 127 

 Alsinopsis, 131 

 Alum-root, 172 

 Alyssum, 161 

 Amaranth, 120 

 AMARANTHACE^E, 120 

 Amaranth Family, 120 

 Amaranthus , 120 

 Amarella, 265 

 AMARYLLIDALES, 86 

 Ambrosia, 328 

 AMBROSIACE.E, 327 

 Amelanchier, 191 

 American Cowslip, 263 

 American Ivy, 228 

 American Laurel, 260 

 Ammonia, 240 

 AMMIACE^E, 250 

 Amorpha, 213 

 Amphiophis, 19 

 Amsonia, 269 

 AMYGDALACE^E, 193 

 Anaphalis, 370 

 Anchusa, 289 

 Androcera, 302 

 Andropogon, 19, 20 

 AndropogonecE, 19 

 Androsace, 261 



Anemone, 140 

 Anemone, 140 



Angelica, 255 



Angelica, 253, 255 



ANGIOSPERM.E, n 



Anisolotus, 202 



Anogra, 244 



Antennaria, 367 



Anticlea, 76 



ANTHEMIDE^:, 382 



Anthemis, 382 



Antheropogon, 36 



Anthopogon, 265 



Aphyllon, 320 



Apinus, 8 



Aplopappus, 343, 346 



APOCYNACE^:, 269 



Apocyniim, 269 



Apple Family, 191 



431 



