Epilobium adeiiocauloii, Haussk. Northern Willow 

 Herb. 



In moist ground throughout the state. 



Epilobium Hornemaimi, Rerchenb. Hornemann's Wil- 

 low Herb. 



Near Sips Springs in the Black Hills. 



Epilobium Drummondii, Kansk. Drummond's Willow 

 Herb. 



In the limestone district in the Black Hills. 



Onagra bieniiis, (L>.) Scop. Evening Primrose. 

 CEnothera biennis, L. 



Common throughout the state. 



(Eiiothera laciiiiata, Hill. Sinuate-leaved Evening 

 Primrose. 



CEnothera sinuata, I*. 

 In the Black Hills; rare. 



Anogra albicaulis, (Pursh.) Britton. Prairie Evening 

 Primrose. 



CEnothera albicaulis, Pursh. 

 Occasional in low ground throughout the state. 



Anogra coroiiopifolia, (T. &. G.) Britton. Cut-leaved 

 Evening Primrose. 

 CEnothera coronopifolia, T. & G. 

 In the Black Hills and on the adjacent plains. 



Anogra pallicla leptophylla, (Nutt.) 



CEnothera pallida leptophylla, (Nutt.) T. & G. 

 CEnothera leptophylla, Nutt. 

 Occasional in the Black Hills, 



Pachylophus csespitosa, (Nutt.) Raimann. Scapose 

 Primrose. 

 CEnothera c&spitosa, (Nutt.) 



In "gumbo soils" from the Missouri valley westward; 

 common. 



Meriolix serrulata, (Nutt.) Walp. Tooth-leaved Primrose. 



