INDEX. 



(.Synonyms are in italics. The principal account of the species of any genus will be found on the page 

 or pages following the genus name. The few species names entered in the index are followed by only 

 secondary references.) 



Page. 

 Abies 93 



amabilis 12,58 



grandis 42, 58 



lasiocarpa 60 



nobilis 12 



Abronia 244 



latifolia 47 



umbellata 47 



Acer .385 



macrophyllum 42 



Aceraceae 385 



Achillea 584 



millefolium .58 



Achlys 283 



A comastylis 344 



Aconite 282 



Aconitum 282 



Actaea 278 



Adams, Mount, botanical collection 19 



Adder's tongue 49, 83, 192 



Adenocaulon 607 



Adenostegia 518 



Adiantum 78 



Agastache 489 



■ Agoseris .541-545 



Agrimonia 335 



Agropyron 146-149 



spicatu m 48 



Agrostemma 256 



Agrostideae 102 



Agrostis 118-121 



rossae 62 



Aira 121 



Aizoaceae 245 



Alaska cedar 91 



heather 439 



Alchemilla 335 



Alder 219 



red 42, 219 



Alfalfa 363 



Amiaria 380 



Aligera 533 



macroptera obtusa 614 



Alisma 100 



Aiismaceae 100 



Allen. O D. botanical collection 19 



A lljyim 187-189 



.MIocarya 485 



chorisiana 44 



Allotropa 435 



Almond family 348 



Ainus 219 



Alopecurus 1 10 



Page. 

 Alpine fir 93 



meadows 33, 35 



Alsikc clover 361 



Alsine 257-259 



Alyssum 287 



Amabilis fir 93 



Amaranth family 244 



Amaranthaceae 244 



Aniaranthus 244 



Ambrosia 551 



Ambrosiaceae 5.50-.552 



Amelanchier 345 



cusickii 49 



Aramannia 398 



Ammodenia 260 



Amsinckia 480 



Amygdalaceae 348 



Anacardiaceae 383 



Anacharis 101 



Anaphalis 606 



margaritacea revoluta 614 



Ancestry, relation to distribution of plants. 33 



Anemone 267 



Angelica 418 



hendersoni 47 



Anogra 407 



Antelope brush 36,345 



Antennaria 601-606 



rhodantha 614 



Anthemis 585 



Anthoxanthum 106 



A phyllon 521 



arenosuni 614 



comosum 44 



inundatum 614 



Apiaceae 413-431 



A plopappus 559, .560 



Apocynaceae 4.52 



Apocynum 452 _^ 



Apple family 345-347 ^ 



Aquilegia 278 



formosa 58 



Arabis 291-295 



Araceae 177 



Aragallus . 367 



Aralia 



Araliaceae 



A rbutus ... 



A rceuthobium 



Arctic life zone, altitudinal limits. 



character 



flora 



412 

 412 

 437 

 222 

 36 

 34 

 62-65 



623 



