| 
149 (7 
OLEACEZE. 
Fraxinus velutina, . sp. Branches, petioles, and under surface 
of the leaves, clothed with a dense soft pubescence. Leaflets 3 t 
5, rhombic-ovate, cuneate at the base, coarsely serrate or toate. 
sparingly pubescent above. Fruit narrowly oblanceolate, nearl 
entire at the apex, about three-fourths of an inch long. 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 the Mimbres, a° 
tributary of the latter river. 8 
NYCTAGINACEZ® ‘ - 
Abronia mellifera, Hook. Valley of the Del Norte. 
A. (Tripterocalyx) micranthum, Torr. in Frém. 1st report, p. 96. 
Valley of the Del Norte. De 
This differs in some respects from Frémont’s plant. The pedun- 
cles 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 | 
being abortive. It is wanting also in A. mellifera. In several 
Species of this genus, if not in all of them, the filaments adhere 
throughout nearly their whole length to the tube of the perianth. 
The lobes of the perianth are dilated, and deeply emarginate, but 
appear ovate in the bud, from the lobules being conduplicate. 
ae CHENOPODIACE#. a 
-Sarcobatus vermiculatus. S, Mazximilioni, Nees in Prince Maxim. 
trav., Engl. ed., p. 518. Frémentia vermicularis, Torr. in Frém. 
5; and.2d report, p. 317. Batis vermicularis, Hook, 
fl. ashy As Abundant on the Del Norte, and upper 
part of the valley of the Gila. : 
This is the pulpy thorn of Lewis and Clark. It hasa very ex- 
tensive range in the desert regions on both sides of the mountains. 
Since my-notices of this plant were published in Frémont’s reports, 
I have ascertained that Nees’ description of his genus Sarcobatus, 
dates a, little anterior to mine, so that his name must be adopted. 
_Obione argentea, Mog. Atriplex argentea, Nutt. Abundant i 
sandy saline places on the Del Norte. nae 
O. polycarpa, n. sp. Valley of the Gila, 
lanata, Mog. 7Valley of the Del Norte. A shrui ‘ 
\triplex, and a species of Sueda, were found 
 AMARANTHACES. ee 
bridus, Var.? -Glabrous; stem 
_ Amarant ius hy : 7 ae 
smooth, flowers (purplish) crowded in a dense compound | 
spike; bracts somewhat awned, shorter than the flowers; 
Opening transversely. On the Del Norte, below Santa Fé. 
