330 NORTH AMERICAN FAUNA. [No. 7. 



Oasis Valley. — Common on the gravel slopes at the, head of the valley 

 at an altitude of about 1,340 meters (4,400 feet). 



Emigrant Valley. — One of the commonest plants in the bottom of the 

 valley at an altitude of 1,525 meters (a little above 5,000 feet). 



Thnpahute Valley. — One of the principal plants. 



Pahroc Plain. — Common, mixed with Grayia spinosa, Lycium ander- 

 soni, and Atriplex canescens. 



Desert Valley.— This valley is a remarkably typical Eurotia plain, 

 thousands of acres between Pahroc Mountains and the Highland Range 

 showing no other plant. 



Meadow Greek Valley. — Extensive tracts (comprising many acres) are 

 covered with this species alone. 



Juniper Mountains (between Panaca, Nevada, and Shoal Greek, Utah). — 

 Common in places among the sage and juniper. 



UTAH. 



Santa Clara Valley. — Rather common in places. 

 Allenrolfea occidentalis [= Spyrostachys occidentalis~]. 



This small, scrubby plant (commonly known as Spyrostachys occi- 

 dentalis) can endure more alkali and salt in the soil than any other 

 species, and consequently is abundant on many of the salt flats where 

 no other species grows. In Death Yalley it forms a distinct border 

 around the salt flat; and it occurs in similar soils easterly as far as the 

 valley of the Virgin and Lower Muddy. 



Suaeda suffrutescens. 



Suceda suffrutescens is a saline plant, requiring both salt and alkali 

 in the soil in which it thrives. It can not stand so much salt as Allen- 

 rolfea, and consequently is found outside of the A llenrolfea belt around 

 the true salt flats. It was recorded from the following localities: 



NEVADA. 



Grapevine Ganon. — Common in places. 



Sarcobatus Flat. — Common in places in the northern part of the flat. 

 Oasis Valley. — Common throughout the bottom of the valley. 

 Pahranagat Valley. — Common in the lower part of the valley. 

 Valley of the Virgin and Lower Muddy. — Abundant on the salt flats. 

 Indian Spring Valley. — Common about the dry lake at the base of the 

 north arm of Indian Spring Yalley. 



Sarcobatus baileyi.* 



This new species of Sarcobatus, the second known in the genus, was 

 first discovered by Mr. Vernon Bailey in the Candelaria salt marshes 

 near Columbus, Nev., in winter. It was afterward found by Mr. 

 Bailey and myself in Sarcobatus Flat, on the west side of the Ralston 

 Desert, where it was common and in full fruit June 2, aud on the east 

 side of Fish Lake Valley, where it forms a narrow zone at an altitude 



"Coville, Proc. Biol. Soc. Wash., vol. vn, May 18, 1892, pp. 77-78. 



