172 Wyoming Experiinent Station. 



Salicornia herbacea, L. Sp. PI. 3 (1762). 



Abundant on the shores of alkaH lakes, even on the encrusted 

 banks where nothing else will grow. 



Howell Lakes, October 1, 1894 (No. 1162); Laramie, September 

 3. 1895 (No. 1869). 

 Sueda depressa, Watson, Bot. King's Exp. 294 (1871). 



Not noted except at Howell Lakes, October 1, 1894 (No. 1163). 

 Sueda depressa erecta, Watson, Proc. Am Acad, ix, 90 (1874). 



Not frequent ; on an alkali bog on Poison Spider Creek, July 

 27, 1894 (No. 623). 

 Sueda diffusa, Watson, Proc. Am. Acad, ix, 88 (1874). 

 TJiis is common on wet, saline ground. 



Popo Agie River, August 4, 1894, (No. 717); Sheridan, Sep- 

 tember, 1895, J. F. Lewis, 

 Sueda Torreyana, Watson, Proc. Am. Acad, ix, 88 (1874). 



Only collected at Howell Lakes, but probably elsewhere as well. 

 October 1, 1894 (No. 1168). 

 Salsola Kali Tragus, Moq. in DC. Prodr. xiii, part 2, 187 (1849). 



This, the much talked of Russian Thistle, is already quite widely 

 distributed in the northeastern part of the state. Other plauts are 

 frequently mistaken for it and so it has often been reported from 

 localities in which it does not exist. There is no evidence to show 

 that it is found on the line of the Union Pacific railroad except at 

 Cheyenne. On the lines of the Burhngton & Misssouri and the Elk- 

 horn roads, however, I am reliably informed that it is widely dis- 

 tributed. 



Specimens from Cheyenne, October, 1894 ; from Lusk and Fred- 

 ericks in 1895. 

 Sarcobatus vermiculatus, Torr. , Emory's Rep. 150 (1848). 



The most characteristic shrub of the saline plains and foothills. 

 Sweetwater River, September 9, 1894 (No. 1182); Howell Lakes, 

 October 1, 1894 (No. 1161). Grease Wood. 



POLYGON ACEuSl. 



Eriogonum alatum. Torr. Sitgreaves Rep. t. 8 (1853). 



Noted only on the foothills of the Laramie range and the adjoin- 

 ing plains ; abundant. 



