208 MR. GEYER's ROCKY MOUNTAIN PLANTS. 
Hook. Fl. Bor. Am. 1. p. 138. Torr. et Gr. Am. I. p. 
298. 
Has. Gravelly banks of rivers, Missouri and Oregon Terri- 
tory. July, August. (n. 65). 
1. Psoralea /anceolata, Ph.—Hook. Fl. Bor. Am. 1. p. 135. t. 
51. Torr. et Gr. Am. 1. p. 299. P. elliptica, Ph.—P. are- 
naria, Nutt. DC. — £. magis fruticosa, ramosaque, foliis 
minoribus. 
Has. Covering, together with Rumez venosus, the drift-sand 
‘hills of Lower Platte, and binding the sand by its long 
creeping roots. June. Corolla bluish-white. (n. 170).— 
B. Drift-sand plains at the mouth of the Walla Walla 
River. Roots very long ; caudex woody; forming large 
prostrate bushes, binding with their branches as wellas 
with their roots, the loose sand together. Corolla light 
blue. June, July. (n. 653). 
.. 2. P. floribunda, Nutt.—Torr. et Gr. Am. 1. p. 300. 
Has. Fertile elevated plains of the Lower Platte, with P. 
.. esculenta and “ Coreopsis palmata” July. Flowers os 
Ph (n. 67). 
"P esculenta, Ph. Am. 2. pi 475. t. 22. Torr. et Gr. Am. I. 
p. 202. 
Has. Fertile plains of the whole of Missouri and Dacotah — 
territories, growing with P. floribunda. July. Flowers oe T 
blue. This is the Prairie-turnep of deii the diee e o 
- the Sioux Indians. (n. 58). l 
+ hypogea, Nutt.—Torr. et Gr. Am. 1. p. 302 00 — — — 
| . Has. On the * Black Hills,” near the passage of “ ade 
de River," not far from the Platte. “ Different from the — 
culenta, which ceases to the WM. SOE light nn 
ee gas (n. 269). — 
p. nr eriocephatum, Nate Torr. et Gr. Am. LP 
m S, : 
. Has. High swampy meadows in the Nez Percoz mountains 
~ (n.379).—A most distinct a icin | 
+ T. altissimum, Hook. Fl. 
a et Gr, Am. d p. 313. ee 
t 48, Tor. 
