BOTANICAL INFORMATION. 71 
1. Draba glacialis ? Adams. 
Has. Onan isolated calcareous cliff in the Black Hills on 
the Horse River. July. (n. 267.) — I am rather doubtful 
about this species, my specimens possessing neither flower 
nor perfect silicules; but, judging from the nature of the 
leaves and the pubescence, I think it is that species. 
2. Draba lutea, Gilib.—ß. longipes, Hook. Flor. Bor. Am. 
1. p. 55. Torr. et Gr. Am. 1. p. 107. 
Has. Moist borders of hills, Cœur d'Aleine valley, and on 
the sandy banks of Columbia river, at Fort Colville. 
March—May. (n. 626.) : E 
l. Platyspermum scapigerum, Hook. Fl. Bor. Am. 1. p. 
68. t. 18. B. Torr. et Gr. Am. 1. p. 112. 
Has. Wet rocks and water-eourses in the plains, Upper 
Oregon, Cœur d'Aleine and Chuelpee country; forming 
dense carpets, rarely solitary, on rocks. Corolla white ; 
silicule pale green with purple dots. (n. 597).—There are 
very beautiful specimens in all stages, from the flower-bud, 
to the large ripened fruit, which, when fully formed, is 
essentially orbicular, and as large as a silver penny. 
1. Thlaspi cocAleariforme, DC. Hook. Fl. Bor. Am. 1. p. 58. 
Nutt. Journ. Acad. Philad. 7. E 13. Torr. et Gr. Am. 
l. p. 114. 
Has. On the high, colds swampy prairies of the Cœur — 
d’Aleine, surrounded by high mountains. Somewhat 
stoloniferous. Leaves purplish. (n. 305). — 
1. Lepidium Virginicum, L. 
Has. Indian camps, Kooskooskee river valley, growing with 
Erodium Cicutarium. June. (n. 389) 
2. L. integrifoliun, Nutt. in Torr. et Gr. Am. 1. pP. 1e e 
. Haz. Saline clayey denuded places, about the sources of | 
Muddy river, and along the valley of Bear River. July, 
August. (n. 81).—Exactly agreeing with Mr. Nuttal's - 
original specimens from the western side of the en | 
. Mountains about the borders of the Oregon. _ 2 
1. Thysanocarpus curvipes, Hook. Fi. me Am. 1 1 
i Torr. et Gr. i: ue Hs. nd 
