58 TWELFTH ANNUAL KEPORT. 



CE. rlioiiibipetala, Nutt. Evening-Primrose. 



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

 Roberts, Anoka county, Juni, and Stearns county, Garrison ; but not found in the Red 

 river valley, Uphain. 



CE. friitioosa, L. Sundrops. 



Upper Mississippi river, Garriso)),. Rare. South. 



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

 rose. 

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

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

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



CE. serrulata, Nutt, Evening- Primiose. 



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

 extending northeast to the upper Mississippi, Howjhton. 



CE. albicaulis, Nafct.* White, shrubby Evening- Primrose. 



Brown's Valley (petals white, 1 inch long), Upham; near Muskoda, Clay county, 

 Leiherg\ Pembina, Havard. West. 



LiUDWIGIA, L. False Loosestrife. 



L. polycarpa, Short & Peter. False Loosestrife. 



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

 Southeast. 



Li. paliistris, Ell. Water Purslane. 



St. Croix river. Parry, Blue Earth county, Lcihenj. [Saskatchewan river, Richard- 

 son.] lufrequent. 



LYTHRACEiE. Loosestrife Family. 



DIDIPLIS, Raf. Didiplis. 



D. liueai'is!, Raf. (Ammanuia Nuttallii, Gray.) Didiplis. 

 Minnesota, T.J. Hale, \QGva,y'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 BlaisdcU, and the upper Mississippi river, Gani.so;). 



|Nes;ea verticillata, HBK , which occurs on the upper St. Croix river in Wiscon- 

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



*CENOTHEi{A ALniOAULis, Nutt. Perennial, puberulent or hirsute ; stems usually 

 1 to 3 feet high, erect or ascending, 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 ungulculate, entire, exceeding the stamens and equal- 

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

 often llexuous or dellexed ; seeds rather small, linear-lanceolate, smooth. Porter and 

 Coulter's Flora of Colorado. 



