

220 BOTANY OP THE DEATH VALLEY EXPEDITION. 



cent locality sent me by Mrs. Katharine Brandegee, true E. calif on, ica. It was ob- 

 served also at the extreme southern end of Pauamint Valley, and about the upper 

 spring at Lone Willow Spring. It is undoubtedly an abundant plant in many parts 

 of the Mohave Desert region, but in the field was confounded with E. nevadensis. 



Ephedra nevadensis Wats. Proc. Amer. Acad. xiv. 298 (1879). Type locality, 

 as taken from No. 1108 of the King Survey, of the female plant, "Pah Ute Moun- 

 tains; altitude 5,000 feet;" of the male plant, "Carson City; altitude 5,000 feet." 

 Both localities are in Nevada. 



The glaucous species of Ephedra, E. nevadensis and E. ealifornica, occur abun- 

 dantly in the upper part of the Larrea belt, and in many cases up to the juniper belt, 

 throughout the desert. Dr. Merriain found one or both of them at many points 

 along his route in Utah and Nevada. In the lower portion of the Larrea belt they 

 occur but sparingly. 



Ephedra trifurca Tori', in Emory, Rep. 152 (1848). Type locality, "the region 

 between the Del Norte and the Gila." 



This species was abundant along the Mohave River at Daggett (No. 152), but was 

 not noted at any other place. 



Ephedra viridis sp. no v. 



Shrub erect, 0.5 to 1 meter high; branches numerous, erect, bright green, muricu- 

 late-roughened; leaf-scales opposite, 3 to 5 mm. long, connate for apparently two- 

 thirds their length when young, in age usually broken off, but the brown thickened 

 base persistent. 



Type specimen in the United States National Herbarium, No. 923, Death Valley 

 Expedition; collected June 12, 1892, near Crystal Spring, Coso Mountains, Inyo 

 County, California, by Frederick V. Coville. 



It is unfortunate that no specimens of the fruit of this Ephedra could he obtained, 

 yet the species is such an important zonal plant that it must necessarily receive a 

 name in this report, It is readily distinguishable in the field from Ephedra nerademh 

 which has a different range, by its bright green color, and its erect, broom-like 

 branches, that species having a pale glaucous-green color ami divergent branches. 



No. 387, from the Charleston Mountains, is a specimen collected because of its 

 unusually pale color, resembling in this E. nevadenxix. No. 112, Xantus, collected 

 near Fort Tejon, California, in 1857-58, and noted by Watson i as possibly distinct 

 from E, nevadensis, is the same as our plant. 



This species is a characteristic plant of the Upper Sonoran zone, usually begin- 

 ning a little below the juniper belt and extending well up into the pifions It was 

 first seen on a sheltered north slope of a peak near Copper City Spring, and after- 

 ward in the Funeral Mountains on a peak west of Amargosa, in the Charleston 

 Panamint, Inyo, and Coso mountains, on the eastern slope of the Sierra Nevada 

 near Lone Pine, in Walker Pass on tl.e divide between Kernville and Havilah Dr 

 Merriam found it also in the White Mountains of California, in Gold Mountain" 

 Mount Magrnder, Pahranagat Mountains and the Highland Eange of Nevada, and 

 the Beavcrdam Mountains of Utah. 



CONIFERiE. 



Pinus aristata Engelm. Trans. St. Louis Acad. ii. 205 (1863). Type locality "on 

 alpine heights, between 9,200 ami 11,800 or 12,000 feet high, on Pike's Peak and the 

 high mountains of the Snowy Range/' Colorado. 



On the Charleston Mountains (No. 315) the bristle-cone pine is the prevailing 

 tree on south slopes, from the altitude of 3,10(1 meters to that of at least 3 '>30 meters 

 Above the latter height we did not go. O n a north slope the tree was seen as low as 



1 Proc. Amer. Acad. xiv. 299 (1879). 



