142 



Alsiiie loiij»-ifolia, (Muhl.) Britton. Long-leaved Stitch- 

 wort. 

 Stellaria longifolia^ Muhl. 



In the Minnesota and Sioux valley, and in the Black 

 Hills. 



Alsiiie borealis, (Bigel.) Britton. Northern Stitchwort. 

 Stellaria borealis, Bigel. 



In cold bogs in the Minnesota and the extreme eastern 

 part of the Sioux valley, Elkton; rare. 



Agrostemma Githago, L. Corn Cockle. 



In grain fields from the Missouri river eastward. 



Silena acaiilis, L. Moss Champion. 

 In the Black Hills, Rapid City. 



Silena stellata, (L.) Ait. Starry Champion. 



In woods in the southern part of the Sioux valley; 

 Flandreau, Sioux Falls, 



Silena vulgaris, (Moench.) Garcke. Bladder Champion. 

 An introduced weed in the Sioux valley near Brook- 

 ings. 



Silena antirrhina, L. Sleepy Catchfly. 



Occasional in low prairies in the Minnesota, Sioux 

 and James valleys, and in the Black Hills. 



Cerastiuin longipeduiioulatuni, Muhl. Powderhorn. 

 Abundant in moist shade in the Black Hills. 



Cerastinni bracliypodinni, (Englm.) Robinson. Short- 

 stalked Chickweed. 



From the Missouri river eastward, and in the Black 

 Hills. 



Cerastiuni arvense, L. Field Chickweed. 



Same range as the last, but more abundant. 



Cerastiuni arvense oblongifoliuin, (Torr.) Holl. & 

 Brett. 



Occasional in the Sioux, the James valley, and in the 

 Black Hills. 



