onagrace^e. 297 



5. Epilobium paniculatum, Nutt. 



Hab. On the Lower Sacramento, on dry ground (with the flowers 

 smaller than in E. palustre) ; and in prairies between the Willamette 

 River and Northern California (with the flowers three times larger, 

 and the plant 2 or 3 feet high). 



3. CE N T H E R A, Linn. 



1. (Enothera biennis, Linn. 



Hab. Interior of Oregon and Washington Territory, and west to 

 the Pacific ; also on Fraser's River, British Columbia. — This species 

 is as variable west of the Rocky Mountains as in the Atlantic States. 



2. (Enothera albicaulis, Nutt. 



Hab. Interior of Oregon, on banks of rivers ; frequent ; in forms 

 similar to those east of the Rocky Mountains. 



3. (Enothera (Godetia) Lindleti, Dough 



Hab. Valley of the Columbia, and at Nisqually, Puget Sound. — A 

 very showy plant, with large lilac-purple flowers. 



4. (Enothera (Godetia) quadrivulnera, Dougl. 

 Hab. Interior of Oregon and Washington Territory ; common. 



5. (Enothera (Boisduvalia) densiflora, Lindl. 



Hab. On the Spokane River, Washington Territory, in elevated 

 forests ; Rev. Mr. Spalding. 



75 



