Ex. Doc. No. 41. 149 



OLEACE^. 



i 



Fraxlnus velutina, «. sp. Branches, petioles, and under surface 

 oi the leaves, clothed with a dense soft pubescence. Leaflets 3 to 

 0, rhornbic ovate, cuneate at the base, coarsely serrate Or toothed, 

 sparingly pubescent above. Fruit narrowly oblanceolate, nearly 

 entire at the apex, about three-foufths of an inch lon^. A small 

 tree, usually from 15 to 20 feet high. Grows in the region between 

 the waters of the Del Norte and the Gila; also on th? Mimbres, a 

 tributary of the latter river. 



NYCTAGINACEiE. 



Abronia mellifera, Hook. Valley of the Del Norte. 



A {Trip tero calyx) micranthum, Torr. m Frem. 1st report, p. 96. 

 V alley of the Del Norte. r ,F 



This diifers in some respects from Fremont's plant. The pedun- 

 cies are elongated, and the fruit is more than an inch long, with 

 very broad wings. The structure of the seed is precisely the same 

 as in that plant, the inner cotyledon of the conduplicate embryo 

 Deing abortive. It is wanting also in A. mellifera. In several 

 th^^^^l^^ t^is genus, if not in all of them, the filaments adhere 

 Th°'] K*^^^ nearly their whole length to the tube of the perianth. 



e lobes of the perianth are dilated, and deeply emarginate, but 

 appear ovate in the bud, from the lobules being conduplicate. 



CHENOPODIACE^. 



^arcobatus vermiculatus, S. Maximiliejii, jYees in Prince Maxim. 



IsT'^ ^^^' ^^••>P- ^^^' Fremontia vermicularis, Torr. 'in Frem. 

 t report, p. 95; and 2d report, p. 317. Batis vermicularis, Hook, 



n^f ; , ' ^^ P- ISS- Abundant on the Del Norte, and upper 

 part of the valley of the Gila. . ' Fl^ 



ten -^ ^^ ^'^^- P^^Py thorn of Lewis and Clark. It has a very ex- 

 gj sive range in the desert regions on both sides of the mountains. 

 J ^^e my notices of this plant were published in Fremont's reports, 

 dat^^^ appertained that Nees' description of his genus, Sarcobatus, . 



^s a little anterior to mine, so that his name must be adopted. 

 , ^'^^^ argentea, Moq. ^triplex argentea, J^utt. Abundant in 

 "sanely sahne places on the Del Norte. 



^- polycarpa, n. sp. Valley of the Gila, 

 licoj^'-^*'^ Janata, Moq. Valley of the Del Norte. A shrubby Sa- 

 «jn,'/'^\^' ^^ -A-triplex, and a species of Sueda, were found in saline 

 soils along the Gila. ' 



# 



AMARANTHACE.^. 



smt^tr^fl^^'"^ tybridus, Var.7 Glabu. Stem and leaves nearly 

 spilr° . L "O'^^rs (purplish) crowded in a dense compound terminal 

 P 'e; bracts somewhat awned, shorter than the flowers; utricle 

 Pening transversely. On the Del Norte, below Santa Fe. 



