455] 



INDEX 



30/ 



References to the Flora are in brackets T "] 



coarsely toothed [243 



common [242 



dwarf [243 



false, five-ribbed [243 



petioled [243 



red-streaked [242 



subrhomboid [243 



Utah [243 



Svida [181 



stolonifera 23, 29, [181 



Swamp flora 10 



Swamp laurel, small leaved. . . . [186' 



Sweet ciceley 21, [182 



obtuse-fruited [182 



smooth [182 



Sweet clover [155 



white [155 



Sweet coltsfoot [248 



arrow-leaved [248 



Sweet flag 10, Si 



Swertia [192 



congesta [192 



palustris 34,40, [192 



Swertia [192 



dense-flowered [192 



marsh [192 



Switch grass, tall [58 



SYL VALES 31, 36 



SYLVESTRES 18, 20, 24 



Sympetalae [185 



Symphoricarpos - 



occidentalis 20, 26, [221 



oreophilus 32, [221 



vaccinioides [221 



Syntherisma [57 



sanguinale 44, [57 



Synthyris alpina [215 



Synthyris, alpine [215 



Talinum [113 



parvifiorum 30, [1 13 



Tansy mustard [130 



cut-leaved [130 



fine-leaved [130 



hoary [130 



western [130 



Taraxacum [258 



montanum [258 



officinale [258 



Taraxacum 45, [258 



Temperature and rainfall 8£ 



Tetragoniaceae [113 



Tetraneuris [245 



lanata [245 



lanigera 32,42, [245 



Teucrium [205 



occidentale 11, [205 



Thalesia [219 



fasciculata 43, [219] 



lutea [219] 



Thalictrum [125] 



Fendleri 28,(125] 



purpurascens 22, [125] 



Thelesperma [244] 



gracile 16, [244] 



Thelesperma, slender [244] 



Thelypodium [135] 



paniculatum [135] 



sagittatum [135] 



torulosum [135] 



Thelypodium, panicled [135] 



Thermopsis [152] 



arenosa [153] 



divaricarpa 22, 25, 32, [153] 



pinetorum 25, 43, [152] 



Thermopsis, divaricate-podded [153] 



pineland [152] 



sand [153] 



Thistle 13, [253] 



Colorado [254] 



crag [2Si] 



erose-bracted [254] 



gray [253] 



knapweed [254] 



large-headed [254] 



Parrv's [253] 



Platte [254] 



Russian [1 1 1] 



sow [259] 



star [255] 



woolly-headed 40 



ycllow-spined [255] 



Thistle family [225] 



Thlaspi [127] 



arvense 45, [127] 



Coloradense 28, 39, [127] 



Xuttallii 21, 41, [127] 



purpurascens 41, [127] 



Thorn-apple [210] 



purple [210] 



Thoroughwort [225] 



Three square [79] 



Thymeliales [175] 



Timothy [62] 



common [62] 



false... _ [62] 



mountain [62] 



Tiniaria [108] 



Convolvulus 44, [108] 



Tithymalus [165] 



Arkansanus 16, [165] 



marginatus [165] 



tetramerus [165] 



philorus 19, [165] 



dichotoma [165] 



