Ex. Doc. No. 41, . , 137 



( 



CRUCIFERiE. 



Lepidium ruderalej ii/m. Valley of the Arkansas. 

 Ery&imum Arkansanunij J^utt. Tributaries of the Canadian. 



CAPPARIDACEiE, 



* 



Polanisia grav.eolens, Raf. In flower and fruit September 26 

 October 3^ valley of the Del Norte. The plant is taller, and the 

 flonvers are considerably larger than in the form that is common in 



the northern United States. 



Cleome integrifoliaj JVutt. This beautiful species is abundant on 

 both sides of the mountains, from the plains of Oregon, and the 

 upper waters of the Platte, to latitude 33^ north. 



VIOLACEiE. . 



Viola cucullata, Linn. Pawnee fork of the Arkansas. 



PORTULACACEiE. 



Portulaca oleracea, Ltnn. ' On the Arkansas. Perhaps intro- 

 duced. - 



Sesuvium portulacastrum, Linn. In flower and fruit, November 

 1'7. Saline soils along the Gila. Leaves spatulate. Flowers nearly 

 sesule, stamens numerous. Styles 3. 



' GERANIACE^. 



Geranium Fremontii, Torr. in Frem. 2d Rep. On the Raton. 



TYGOPHYLLACE.E. 



* 



Kallstramia maxima, Torr. and Gr. Tribulus maximus, Linn. 

 Anbutaries of the Canadian. 



Larrea Mexicana, Moricand, I. c. t. 48. " Creosote plant. ^' lo- 

 <ieodondo of the New Mexicans. Used externally for rheumatism. 

 •»■ shrub from three to six feet high. Abundant from the upper 

 haters of the Arkansas, and valley of the Del Norte, to the great 

 sandy deserts of California. It likewise occurs in the northern 

 parts of Mexico. The plant abounds in a strong smelling resinous 

 *aatter. No animal seems to feed on it, and it is useless for fuel, 

 *s It can scarcely be made to burn. 



ANACARDIACE^. 



I ^^us glabra, Linn. From the upper part of the Arkansas to 

 longitude 107°. 



^- laurinaj JTutt. A large shrub. Mountains of California to- 

 wards the sea coast. 



R- trilobata, JVuti On the Gila, A shrub 18 inches high, found 



