INDEX 



The simple numbers refer to the page on which the description accurs, the 

 grouped numbers to the page of the plate, and to the figures. 



Abies 364. 366:8, 9 

 Abronia 69, 54 :I 5» J 6 

 Abutilon 31 

 Acer 217, 218:1, 2 

 Aceraceae 217, 218:1, 2 

 Acerates 101, 94:5 

 Achillea 251 

 Acnida 68, 54:20 

 Aconite 2, PI. 1:1 

 Aconitum 2, PI. 1 :i 

 Acrolasia 209 

 Actaea 2 



Actinella 251,278:6,288:2 

 Acuan 167 

 Adelia 100, 94:2 

 Adopogon 250 

 Adoxa 241, 232:4 

 Adoxaceae 241, 232:4 

 Agastache 144 

 Agoseris 251, 252:4 

 Agrimonia 152 

 Agrimony 152 

 Agropyrum 340. 342:26, 



27 

 Agrostemma 43. 54 : 3 

 Agrostis 341, 342:13 

 Aizoaceae 50 

 Alder 220. 218:8 

 Aletes 226, 232:15, 25 

 Alfalfa T84, 172:2 

 Alfilaria 39, 38:5 

 Alisma 300 

 Alismaceae 299. 322:2 

 Alismales 299 

 Allionia 69, 44:1 

 Allioniella 72 

 Allium 307, 306:1 

 Allocarya 121 

 Alnus 220, 218:8 

 Alopecurus 344, 342:18 



Alpine Birch 218:6 

 Alpine Buttercup 4:6 

 Alpine Forget-me-not 



120:5 

 Alsike 186 

 Alsine 48, 54:6 

 Alyssum 18, 22:7 

 Alyssum, Yellow 18 

 Amarantaceae 67, 54:19- 



22 

 Amaranth 67, 54:21, 22 

 Amaranth Family 67, 54: 



19-22 

 Amarantus 67, 54:21, 22 

 Ambrosia 253 

 Amelanchier 164, 160:10 

 American Ivy 212 

 Amorpha 170, 180:4, 5 

 Amsonia 100 

 Anacardiaceae 220 

 Anaphalis 253 

 Andropogon 344, 342:34, 



35 

 Androsace 89, 90:5 

 Anemone 2, 4:1 

 Angelica 226, 232:21 

 Anogra 200, 196:15 

 Antennaria 253. 260:2 

 Anthemis 254 

 Aphyllon 141 

 Apiaceae 223, 232:9-30; 



240:7 

 Apiales 222 

 Apocynaceae 100, 94:4 

 Apocynum 101, 94:4 

 Apple Family 163. 160:10- 



12 

 Apple. Thorn 11 1 

 Aouilegia 3. PI. 1:2, 3 

 Arabis 18, 22:41, 42 



Aragalus 170, 172:1; 180: 



11, 12 

 Arales 315 

 Aralia 222, 232:1 

 Araliaceae 222, 232:1 

 Arctostaphylus 83. 90:10 

 Arenaria 43. 54^4, 5 

 Argemone 12 

 Argentina 152 

 Aristida 344, 342:17 

 Arnica 254. 278:2 

 Arrow Grass 303. 322:3 

 Arrow Grass Family 303, 



322:3 

 Arrowhead 300, 322:2 

 Arrowhead Family 299., 



322:2 

 Arrowhead Order 299 

 Artemisia 255 

 Arum Order 315 

 Aruncus 153 

 Asclepiadaceae 101. 94:5- 



11 

 Asclepias 102, 94:6-10 

 Asclepiodora 103, 94:11 

 Ash 99, 94:1 



Green 94:1 



Mountain 165 

 Aspen 72, 70:4 

 Asphodel 310 

 Aster 257, 260:5 



adscendens 261 



alpinus 258 



angustus 257 



campestris 258 



coloradensis 257 



conspicuus 258 



elegans 257 



Engelmannii 257 



ericoides 259 



