May 19, 1913 ; 47 
CYPERUS DIANDRUS Torr. 
Rare along streams; (Washabaugh county). 
CyYPERUS SPECIOSUS Vahl. 
Occasionally abundant in ravines of escarpments; (Washa- 
baugh county). 
Juncus DuDLEyI Wiegand. Upland rush. 
General in the tall grass of ravines; (Bennett and Washa- 
baugh counties). 
NEMEXIA LASIONEURON (Hook.) Rydb. Carrion flower. 
Fairly common in the moister groves along the streams of 
southeastern Washabaugh county. 
SISYRINCHIUM SEPTENTRIONALE Bicknell. Blue-eyed grass. 
Cominon in the valleys of La Creek; (Bennett county). 
SALIX CORDATA ANGUSTATA Anders. 
Fairly common along brooks; (Washabaugh county). Sader 
fineartfolia Rydb. 
SALIX LUTEA Nutt. 
Fairly common along the brooks; (Washington county ). 
ATRIPLEX NUTTALLII Wats. Saltbush. 
Common on the prairies and abundant in the bad lands; 
(Washabaugh and Washington counties). 
CHENOPODIUM PRATINCOLA Rydb. 
Abundant on banks along streams and about ponds; (Wash- 
abaugh county). 
SALSOLA PESTIFER A. Nelson. Russian thistle. 
Abundant. 
SARCOBATUS VERMICULATUS (Hook.) Torr. Greasewood. 
Common in the bad lands; (Washabaugh county). 
AMARANTHUS TORREY! (Gray) Britton 
An occasional ruderal; (Bennett county). This establishes 
a new northern record, as it has not been reported from north of 
Colorado. 
FROELICHIA CAMPESTRIS Sinall 
Frequent in the sand hills near La Creek; (Bennett county). 
