COLLECTED IN THE UPPER MISSOURI, ETC. 299 
Has. Foot of a high granite mountain, Upper Sweet-water River. 
June. n.239. 
& P: ais iflorus, Fras.—P. Bradburii, Ph. 
Has. Fertile valley of Upper Kansas, near Platte River, on the slopes 
of the hills. June. n. 248. 
4. P. speciosus, Dougl. in Lindl. Bot. Reg. t. 1270. — Hook. Fl. Bor. 
Am. vol. ii. p. 98. 
Has. Sandy woods and protected situations along Spokan River. 
July. n. 641. 
5. P. glabra, Ph.—P. Gordoni, Hook. Bot. Mag. t. 4319.—8. foliis 
paulo latioribus.—P. erianthera, Fras.—-P. glabra, Sims, Bot. Mag. 
t. 1671.—P. alpinus, Torr. 
Has. Sunny sandy slopes of the argillaceous bituminous aie hills of 
Upper Platte, near the junction with Horse and Laramie Rivers. 
July. n. 117.—8. on a sunny sandy declivity of Spokan River 
mountains. July. x. 477. 
` 6. P. ceruleus, Nutt.—P. angustifolius, Fras.—Ph.—p. floribus al- 
bidis roseo-tinctis.—P. albidus, Nutt. ; 
Has. High gravelly calcareous plains of Upper Platte, in the Black 
Hills. Corolla light azure-blue. Leaves glaucous. June, July. 
n. 154.—B. stony gravelly table-lands and ridges of Lower Platte; 
May (n. 662); and elevated fertile gravelly plains, Upper Kansas - = 
and Lower Platte. n. 199.—Excepting in colour, the plants which 
I here consider a var. of P. cæruleus, Nutt., quite agree with that 
species. 
7. P. cristatus, Fras. —P. erianthera, Ph. (non Fras.) vd 
Has. Clayey slopes, hills of Upper Platte (and qu towards the — — 
valley, with “ Erigeron hirsutum.” June. n.237. ; pa 
8. P. Cobæa, Nutt.—Hook. Bot. Mag. t. 3465. 
Has. Fertile slopes of hills of the valley of Kansas River. May, J June. 
n. 90. 
Sect. 3. Eupentstemon. 
9. P. pubescens, Sol. —P. levigatus, Sol.—Sims, Bot. Mag. t. 1428.- -— y 
Hook. Fl. Bor. Am. v. 2. p. 91. E 
Has. Moist sunny fertile places, valley of Upper Platte. pea Rs 
(n.264); and foot of mountains, Nez Percez highlands. 2. 407 be 
or 418? 
