222 MR. GEYER’S ROCKY MOUNTAIN PLANTS. 
Marmot,” growing with Solanum triflorum: sometimes 
in loose sand. June, July. Flowers white. (n. 37.) 
4, CE. coronopifolia, Torr. Ann. Lyc. N. York, 2. p. 201, (not 
_ of Nutt.) Torr. et Gr. Am. 1. p. 495. | 
Has. Drift-sand plains, Upper Platte; and sterile stony 
table lands, growing with Opuntia Missurica. Flowers white. 
June, July. (n. 38.)—I fear too near the preceding. 
5. CE. frichocalyæ, Nutt.—Torr. et Gr. Am. 1. p. 494. 
Has. On a gravelly spot near the Forks of the Platte, in the. 
valley. Corolla white. July. (n. 175.)—Mr. Geyer alludes 
to this as a hybrid between CE. albicaulis and Œ. pinnati- 
fida: but to me it appears to be à most distinct species 
and quite according with the Œ. trichocalyx, Nutt. Mr. 
Gordon also finds the identical plant in the upper valley 
of the Platte. Root creeping. KE 
6. Œ. pallida, Doug]. in Bot. Reg. t. 1142. Hook. Fl. Bor. - 
_ Am. p. 210. 
Has. Sunny gravelly slopes of Upper Platte River. Flowers 
white, larger than those of Œ. albicaulis. July. (a. 176) - 
7. Œ. guttulata, Gey. mst.; subcanescens suffruticosa ce" - 
pitosa e basi præcipue ramosa, tamis gracilibus ascenden- 
tibus nunc ramulosis, foliis approximatis oblongo-lanceo- 
latis remote dentatis erectiusculis, floribus axillaribus soli- 
- tariis majusculis sessilibus folio duplo triplove longioribus, 
ovario elliptico tubo calycis subduplo breviore, 
. (roseis maculosis) late obcordatis, stigmate cruciati: 
suspected. 
