214 MR. GEYER'S ROCKY MOUNTAIN PLANTS. 
5. P. pectinata, Hook. Fl. Bor. Am. 1. p. 142. t. 54, Torr. 
et Gr. Am. 1. p. 347. 
Has. Gravelly bank of Laramie River. Two feet high, 
bushy. July. (n. 50.) - 
6. P. bisulcata, Hook. Fl. Bor. Am. 1. p. 145. Torr. et Gr. 
Am: 1. p. 349. 
Has. On a small fertile tract of the plains of Sweet Water 
River. One of the most showy of the genus, two feet — 
high, forming large bushes. Colour varying from pure 
white to purple violet. July. (n. 21.) 
8. P. mollissima, Nutt.—Torr. et Gr. Am. 1. p. 350. Astra- 
galus Purshii, Dougl. in Hook, Fl. Bor. Am. 1. p.336: 
Torr. et Gr. Am. 1. p. 336. 
Han. Sandy sterile woods of Spokan River and Kooskoos- 
kee. A prostrate plant. July. (n. 562.)—I think Nuttall 
is correct in — this to Phaca and I willingly adopt | 
à hs mer candles Nutt.— Torr. et Gr. Am. 1. p. 351. 
Ser Hook. Fl. Bor. Am. 1. p.143. Ervum 
+ multiflorum ef Astragalus tenellus (in part) 4 Ph. ee Tr 5 
—et Gr.)—Homalobus dispar, Nutt. 
: Han. On a clayey saline bank near Laramie River, Upper 
~ Platte. Common on the Upper Missouri, where it forms 
"very large patches. Corolla white. June: (n. 56.) —Thís 
- does not accord in general habit with the rest of the genus 
 — Homalobus ; and I think it is better retained in Phaca 
“ha genus sal be more thoroughly revised Mr. N Nuttall’ 
He anii; Nutt.—Torr. er x. 
UHR Ar rift-san 
m à rae apes "ope 1. es 
Has. a Grave plains ofthe south Fork c Platte R 
