﻿I'LANT.E FENDLERIAN.E. 



33 



ex. 



stems of this curious dwarf species are caespitose from a branched and tortuous caud 

 The corolla, which is at first yellow, appears to turn purple in fading. 



134. Petalostemon villosum, Nutt. Gen. 2. p. 85; Torr. & Gray, FL 1. p. 310. 

 Sandy soil, between the crossing of the Cimarron and the Middle Spring ; August. 

 " 135. P. gr acile, Nutt. in Jour. Acad. Philad. 7. p. 92. Santa Fe ; on the Cimar- 

 ron ; and west of Independence, Missouri. — Some of the specimens, I know not from 

 which locality, have awn-pointed or cuspidate bracts, which are longer than the flower- 

 buds, and are scarcely, if at all, distinguishable from P. candidum, to which the whole 

 species is perhaps too closely related. 



f 136. P. candidum, Michx. FL 2. p. 49. t. 31. f. 1. Prairies, near the upper ferry 

 of the Kansas River. 



t 137. P. violaceum, Michx. Fl. 2. p. 50. t. 31. f. 2 : — a pubescent variety ; the calyx 

 very silky-villous. Five miles west of Las Vegas, New Mexico ; August. 



138. P. violaceum, Michx.: — a more slender glabrous form, with shorter points 

 to the bracts ; otherwise nearly as the last. Between Willow Bar and Middle Spring, 

 Cimarron, in sandy soil. 



t 139. P. macrostachyum, Torr. in Ann. Lye. New York, 2. p. 176 ; Torr. fr Gray, 

 FL L c. A single specimen, with white flowers (those of P. ornatum, Dougl. are 

 violet). Prairie, 18 miles west of Lower Spring, Cimarron ; August.* 



140. Trifolium involucratum, Willd. ; DC. Prodr. 2. p. 204; Benth. ! PL 

 Hartw. no. 50 ; non Torr. & Gray. Poni Creek, between Bent's Fort and Santa Fe, 

 and on Santa Fe Creek, near the water. — Well distinguished from T. tridentatum. 

 LindL, by the longer calyx-teeth and corolla. The only species of the involucrate sec- 

 tion which has been found (now for the first time in so high a latitude) east of the Rocky 

 Mountains or the Andez. 



141. Melilotus parviflora, Desf. Low grounds, around Santa Fe. 



142. Medicago sativa, Linn. Fields, around Santa Fe. — This and the last were 

 undoubtedly introduced from Europe. From Dr. Gregg's collections, both appear to be 

 naturalized throughout Northern Mexico. 



143. Hosackia Purshiana, Benth. High prairies, Upper Arkansas. 



t 144. Astragalus ? or Phaca ? A single specimen, without fruit. Between the 

 Rio Colorado and Rock Creek ; August. 



t 145. Astragalus Canadensis, Linn. On the Kansas River, one hundred miles 

 west of Independence. 



* Dalea agastachys, Moric. PL Nouv. Amer. t. 44 ( 1839) is Petalostemon obovatum, Torr. <$• Gray. 



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