﻿iO PLANTS FENDLERIANyE. 



length, and usually bears a single pair of small pinnse ; when there are two pairs, these 

 are somewhat approximate. The leaflets are only about one line in length, thickish, 

 obscurely veiny, and perfectly smooth. The joints of the flat pod are one fourth of an 

 inch in diameter. — The locality is somewhat north of lat. 37° ; consequently this is the 

 most northern species of the genus known. It is apparently quite distinct from any of 

 those described in Mr. Bentham's Synopsis (in Huok. Jour. Bot. vol. 4). — As this sheet 

 is going to press, I have the opportunity of examining flowers of this species, sent me by 

 Dr. Engelmann from a specimen gathered on the Upper Canadian in April, 1848, by 

 Mr. Gordon. They have a truncate purplish calyx, five spatulate-oblong petals which 

 are separate to the base, and ten distinct stamens. 



ROSACEA. 



f 182. Prunus Americana, Marsh.; Darlingt. Fl. Cest. p. 287. Rock Creek bottom. 



183. Armeniaca vulgaris, Lam. A naturalized tree along the valley of Santa Fe 



Creek, near dwellings : flowering in April. 



f 184. Prims do.mestica, Linn. Santa Fe ; naturalized around dwellings. 



185. Cerasus demissa, Nutt. in Torr. fr Gray, Fl. 1. p. 411. Steep, rocky banks 



of Santa Fe Creek; June; in fruit, July. — The fruit appears to be larger than our 



choke-cherry ; and it is fine-flavored, according to Mr. Spalding, who sends it from Oregon. 



t 186. C. Virgimana, DC. Foot of rocks, on the Mora River; in fruit only ; Aug. 



187. Spiraea opulifolia, j. pauciflora, Torr. ^ Gray ! Fl. 1. p. 414. (S. mo- 

 nogyna, Torr. ! in Ann. Lye. N. Y.) Foot of hills, Santa Fe Creek ; June, July. Shrub 

 a foot high. — Very probably a distinct species. The ovaries are more commonly two in 

 number. 



188. S. dumosa, Nutt.' Mss. ; Hook. Lond. Jour. Bot. 6. p. 217. Steep moun- 

 tain-sides, upper part of Santa Fe Creek ; July. Shrub about 4 feet high. — This is the 

 S. discolor of Torrey in Ann. Lye. New York (James's Collection), and a good species; 

 but the original S. discolor, Pursh, I believe to be only S. ariaefolia ; as certainly is a 

 plant of Menzies so named by Pursh in Herb. Lambert. 



189. S. (Petrophytum) c^espitosa, Nutt.! in Torr. 8f Gray, Fl. I. c. Rocky- 

 precipices on the Rio Colorado (i. e. the Upper Canadian) ; August.* 



190. Geum macrophyllum, Willd. Enum. I. p. 557 ; Torr. fr Gray, Fl. 1. p. 421. 

 Along the banks of Santa Fe Creek ; May to July. 



f 191. G. Virginianum, Linn. Council Grove, Missouri. 



* The aestivation of the petals in Gillenia is not imbricative as in the rest of the family, but convolute. 



