ROSACEAE 125 



Aten; Broken Bow; Cherry County; Lincoln; Sioux County; Valen- 

 tine. 



3. Fragaria. 500. 



Achenes sunken in pits on the surface of the ovoid receptacle, 



eastern. 1. F. virginiana. 



Achenes on the smooth surface of the elongated-conic receptacle, 



western. 2. F. americana. 



1. Fragaria virginiana Duchesne. Wild Strawberry. 

 In low prairies, common in the eastern part of the state. Crete; 

 Chadron; Long Pine; Lincoln; Peru; Weeping Water. 



2. Fragaria americana (Porter.) Britton. 



Sides of bluffs and canons in the western part of the state. Anselmo; 

 Belmont; Hat Creek Basin; Plummer Ford; Valentine. 



4. Geum. 507. 



Petals white or cream-colored, scarcely longer than the sepals. 



Plant rough pubescent, petals creamy-white. 1. G. virginianum. 

 Plant finely pubescent or glabrate, petals white. 2. G. canadense. 

 Petals golden-yellow, much exceeding the sepals. 



Terminal leaflet of the basal leaves broadly ovate or cuneate, re- 

 ceptacle downy. 3. G. strlctum. 

 Terminal leaflet of the basal leaves orbicular or cordate, receptacle 

 nearly naked. 4. G. macrophylium. 



1. Geum virginianum L. 



In woods in the southeastern part of the state. Lincoln; Talmage. 



2. Geum candense Jacq. 



Common in woods throughout the state. Anselmo; Aten; Lincoln; 

 Neligh; Peru; Saltillo; Sioux County; Talmage; Thomas County; 

 Wahoo. 



3. Geum strictum Ait. 



Meadows in the northwestern part of the state. Belmont; Nattick; 

 Thedford; Valentine. 



4. Geum macrophylium Willd. 

 Rare in meadows. Nattick. 



5. Rubus. 493. 



Flowers about 1 cm. broad; fruit falling away from the receptacle at 



maturity. 



Stems bristly, without prickles; fruit red. 1. R. strigosus. 



Stems not bristly, armed with prickles; fruit purple-black. 



2. R. occidentalis. 

 Flowers mostly 2 cm. broad or mroe; fruits persistent on the fleshy 



receptacle. 3. R. nigrobaccus. 



1. Rubus strigosus Michx. Wild Red Raspberry. 

 In thickets throughout the state, not common. Anselmo; Lincoln; 

 Peru; Thomas County. 



2. Rubus occidentalis L. Wild Black Raspberry. 

 Mostly in thickets and open woods along streams. Newcastle; Peru; 

 Plummer Ford; Red Cloud; Valentine. 



