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 
Actcea, 135 
Actinella, 379, 380 
Acuan, 194 
Adder’s Mouth, 89 
Adder’s-tongue, 83 
Adder’s-Tongue Family, 1 
Adelia, 264 
Adenostegia, 318 
Adopogon, 404 
Adoxa, 324 
Adoxace^e, 324 
JEgilops, 55 
Agastache, 296 
Agoseris, 407 
Agrimonia, 189 
Agrimony, 189 
Agropyron, 52 
Agrostide^e, 23 
Agrostis, 30 
Alder, 97 
Aletes, 252 
Alexanders, 252 
Alfalfa, 202 
Alfilaria (Erodium) 
Alisma, 14 
Alismace^e, 14 
Alismales, 13 
Alkali-grass ( Distichlis ) 
ALLIACF.iE, 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 
Ammania, 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, 11 
Anisolotus, 202 
Anogra, 244 
Antennaria, 367 
Anticlea, 76 
Anthemide^e, 382 
Anthemis, 382 
Antheropogon, 36 
Anthopogon, 263 
Aphyllon, 320 
Apinus, 8 
Aplopappus, 343, 346 
Apocynace^e, 269 
Apocynum, 269 
Apple Family, 191 
431 
