l(i MINNESOTA BOTANICAL STUDIES. 



Potentilla nicolletii (Wats.). 



Potentilla supina LiNX. var. nicolletii Wats. Proc. Am. Acad. 

 8 : 553. 1873. 



Stems erect, 10-15 inches long, leafy, pubescence close with 

 short appressed hairs; leaves ternate; inflorescence elongated, 

 leafy and falsely racemose; achenes but little gibbous on the 

 ventral side; otherwise as in Potentilla supma Linn., which it 

 most resembles. 



Not previously reported from Minnesota. 



Collected by Nicollet at Devil's lake. North Dakota, (not 

 Minnesota, as given by Gray and Watson). 



Near Fergus Falls and Pelican lake. Otter Tail county, Minn. 

 (E. P. S., August, 1892). 



Lespedeza angustifolia (Puksh). Ell. Sk. Bot. S. C. 

 2 : 206. 1824. 

 Not previously reported from Minnesota. 

 Specimens of this plant were found on dry, sandy hillsides 

 near Gull lake, Cass county, Minn. {MacMillan and Sheldon, 

 August, 1890). 



Astragalus convallarius Greene, Erythea. 1 : 207. 1893. 



Not previously reported from Minnesota or South Dakota. 

 Abundant near Graceville, Big Stone, Brown's Valley. Traverse 

 county, Minn. , and near Wilmot, South Dakota {E. P. S. , Sept. , 

 1893). 



Euphorbia hexagona Nutt. in Spreng. Syst. 3 : 791. 1826. 

 Not previously reported from Minnesota. 

 Collected near Vasa, Goodhue county, Minn. ( Dr. J. H. Sand- 

 berg, July, 1882). 



Callitriche autumualis Linn. Syst. Nat. 2 : 52. 1767. 



Not previously reported from Minnesota, although mentioned 

 in Upham's Flora of Minnesota, as to be looked for in the 

 northern part of the state. It was found in abundance on the 

 banks of the Mustinka river, near Wheaton, Traverse county, 

 Minn. {E. P. S., Sept., 1893). 



Elatiue triandra Schkuhr, Bot. Handb. n. 1023. 1808. 



Not previously reported from Minnesota. 



This rare plant was collected in pools near Cannon river, 

 Burnside township, Goodhue county, Minn. {A. P. Anderson, 

 August, 1893). 



