58 TWELFTH ANNUAL REPORT. 



CE. rhoiubipetala, Nutt. Evening-Primrose. 



Frequent through the south part of the state ; extendhig north to Minneapolis, 

 Roberts, Anoka county, Jiini, and Stearns county, Garrison ; but not found hi the Red 

 river valley, Uplunn. 



CE. fruticosa, L. Sundrops. 



Upper Mississippi river, Garrisovi. Rare. South. 



CE. puniila, L. (Including ffi. clirysantha, Michx.) Small Evening-Prim- 

 rose. 

 Throughout the state, but infrequent. Lake of the Woods Dawson, Burgess; up- 

 per Mississippi river, Garrison; Goodhue county, Sandberg; Lake city, Mrs. Ray; 

 Hesper, Iowa, Mrs. Carter; Pipestone county, Mrs. Bennett, 



CE. seri'ulata, Nutt, Evening-Primrose. 



Common in all the prairie portion of the state ; abundant in the Red river valley; 

 extending northeast to the upper Mississippi, Houghton. 



CE. albicaulLs, Natt.* White, shrubby Evening- Primrose. 



Brown's Valley (petals wliite, l incli long), Upliam; near Muskoda, Clay county, 

 Leiherg-^ Pembina, Havard. West. 



LiUDWIGIA, L. False Loosestkife. 



Ij. polycarpa. Short & Peter. False Loosestrife. 



Lake Pepin, Sliss Manning; White Bear lake, Ramsey county, Simmons. Rare. 

 Southeast. 



Li. palustris. Ell. Water Purslane. 



St. Croix river. Parry, Blue Earth county, Leiherg. [Saslcatcliewan river. Richard- 

 son.'] lufrequeBt. 



LYTHRACE.^. Loosestrife Family. 



DIDIPLIS, Raf. Didiplis. 



D. linearis, Raf. (Ammannia Nuttallii, Gray.) Didiplis. 

 Minnesota, T. J. Hale, in Gray's Manual. Southeast. 



LYTHRUM, L. Loosestrife. 



Li. alatuni, Pursh. Loosestrife. 



Common, or frequent, through the southern third of the state ; extending north to 

 Stearns county, Mrs. Blaisdcll, and the upper Mississippi river, Oarrison. 



[Nes^a verticillata, HBK , which occurs on the upper St. Croix river In Wiscon- 

 sin, should be looked for in the adjoining part of Minnesota.] 



*(ENOTHKi«A ALBiCAULis, Nutt. Perennial, puberulent or hirsute ; stems usually 

 1 to 3feet liigh, erect or ascendnig, with a white, membranous, shining bark; leaves 

 very variable, linear or lanceolate, attenuate at the base, entire or more or less dentate; 

 petals round -ovate, more or less unguiculate, entire, exceeding the stamens and equal- 

 ing the pistil, often nearly white ; capsule thickened at base, sessile, linear, divaricate, 

 often flexuous or detlexed ; seeds rather small, linear-lanceolate, smooth. Porter and 

 Coulte)''s Flora of Colorado. 



