42 l] 



INDEX 



273 



References to the Flora are in brackets f 1 



many-headed [234 



Nelson's [233 



Osterhout's [234 



Patterson's [235 



Porter's [234 



prairie, white [234 



smooth [234 



thickish [234 



Underwood's [233 



varying [235 



violet [235 



wart-cress-leaved [235 



white prairie [234 



Astragalus [155 



alpinus [156 



campestris [157 



Canadensis [155 



Carolinianus [155 



decumbens [157 



Drummondii [156 



flexuosus [157 



goniatus 14, 18, [156 



hypoglottis bracteosus [156 



polyspermus [156 



nitidus 18, [156 



oroboides Americanus [156 



Parryi [157 



Shortianiis [157 



sulphurescens [156 



tenellus. [157 



tridactylicus [158 



virgultatus [156 



Atelophragma [156 



elegans 32, [156 



Atheropogon [67 



curtipendulus 18, [67 



Atragene [122 



Columbiana [122 



occidentalis 25, [122 



Atriplex [110 



argentea 17, [110 



carnosa 17, [110 



hortensis 17, [110 



occidentalis [110 



Avena [65 



fatua 44, [66 



sativa 46, [66 



striata 22,31, [66 



Avens 21, [145 



mountain, purple [145 



three-flowered [145 



turbinate [146 



white [147 



yellow [146 



Arapahoe [146 



Oregon [145 



Rocky Mountain [145 



yellow [145] 



Bachelor's button [225] 



Bahia [244] 



chrys anthem aides [244] 



dissecta 29, [244] 



oppositifolia [244] 



Bahia, fine-leaved [244] 



opposite-leaved [2441 



Balsam-apple [222] 



wild [222] 



Balsam fir 36, 39, [54] 



western [54] 



Balsam poplar [98] 



Baneberry [119] 



ivory [119] 



red, western [1 19] 



western red [119] 



Barberry, holly [125] 



Barberry family [125] 



Barley [77] 



little [77] 



six-rowed [77] 



Barnyard grass [58] 



Bastard toad-flax [103] 



pale [103] 



Batidaea [141] 



laetissima 20, 25, [141] 



Batrachium [122] 



aquatile flaccidum [122] 



flaccidum 34, [122] 



Bean family [152] 



Bearberry [186] 



red [186] 



Beard-grass [57], [63] 



golden [57] 



Beard-tongue 13, [211] 



alpine [212] 



glaucous [212] 



low [212] 



mountain [211] 



narrow-sepalled [212] 



one-sided [212] 



Rydberg's [212] 



sharp-leaved [212] 



slender [2 12] 



tall [213] 



Bedstraw [220] 



fragrant [220] 



northern [220] 



Vaillant's [220] 



yellow-flowered [220] 



Bee plant, Rocky Mountain. . . [135] 



Bellflower [222] 



Bellflower family [222] 



Bell rue [122] 



western [122] 



Belvisia [51] 



