=p 
tween the Colorado and Cordilleras of California. 
141 [F} 
CUCURBITACE®. 
Cucumis perennis, James, Torr. and Gr. On the Gila river, 
abundant. We are yet uncertain of the genus of this plant, which 
seems to be common in various parts of Mexico, particularly in arid, 
sandy wastes. No specimens of the fruit have yet been sent to us. 
There are three other undetermined Cucurbitacez in the collection, 
- distinct from any described in the Flora of North America. 
Fin 
CACTACE. 
Several interesting plants of this family were noticed by Colonel 
Emory, but they cannot be satisfactorily described from dried 
specimens. ney are probably included among the numerous new 
species of Mexican Cactacex soon to be described by Dr. Engle- 
mann. 
| CORNACE#. 
Cornus paniculata, /’Her. On the Arkansas, 
CAPRIFOLIACE. 
Symphoricarpus racemosus, Linn. (Snow berry.) On the Ar- 
nsas. , 
ka 
COMPOSITAE. 
‘Vernonia fasciculata, Michz. Bent’s Fort. 
Liatris punctata, Hook. Rayada Creek. 
Corethrogyne tomentella, Torr. and Gr. fl. N. A 
fi - AM« 25D. Wis 
Very abundant on the Cordilleras of the Pacific, and called by the 
natives estafiat. It is a.celebrated_remedy for cholera, as noticed 
by Colonel Emory in his report. © © pee ‘ 
- Dieteria incana, Torr. and Gr.? .Diplopappus incanus, Lindl.? 
On the Gila. Differs from Douglas’s Californian plant in its slen- 
der stem, and nearly glabrous, spinulose dentate leay 
es. 
D. coronopifolia, Wutt. Walley of the Del Norte, and the head 
waters of the Canadian. 
D. asteroides, x. sp. Minutely scabrous, pubescent, stem panicu- 
lately branched above; leaves oblong-cuneate, somewhat rigid, 
sharply and rather ‘coarsely toothed, involucre hemispherical; 
scales linear, in several series, with rather short herbaceous squar- 
rose tips; rays 30 or more, violet; achenia sparingly pubescent. 
Pappus of the ray much shorter than that of the disk. Elevated 
land between the Del Norte and the waters of the Gila. A’ well 
. marked species, with leaves broader than in any other plant of the . 
genus. : _ 
Aster hebecladus, DC. Valley of the Del Norte, and desert be- — 
A. (Tripolium.) A branching species, with the stems pub 
