IV. CORRECTIONS AND ADDITIONS TO THE 

 FLORA OF MINNESOTA. 



A. A. HELLER. 



Chenopodium Boscianum MOQ^ Enum. Chenop. 21. 1840. 



This species should be stricken from the list of Minnesota 

 plants, as no specimen of it has yet been reported from the 

 State. Sheldon's " 1555, Lake Benton," as well as specimens 

 from other localities, quoted in the Metaspermas of the Minne- 

 sota Valley, probably belong to Chenopodium album. 



Sophia pinnata (WALT.) BRITTON, 111. Fl. 2 : 145. 1897. 

 Erysimum pinnatum WALT. Fl. Car. 174. 1788. 

 Sisymbrium canescens NUTT. Gen. 2: 68. 1818. 

 Descurainia pinnata BRITTON, Mem. Torr. Bot. Club, 5 : 



173. 1894. 



The plants referred to this species in the Metasperma? of the 

 Minnesota Valley, under the name of " Sisymbrium rnultifidum," 

 belong to Sophia incisa, with the exception of Sheldon's " 1406, 

 Lake Benton," and "Taylor, 1044, Glenwood," which are 

 specimens of Sophia Hartivegiana. Sophia pinnata does not 

 occur in Minnesota. 



Potentilla leucocarpa RYDBERG, in 111. Fl. 2 : 212. 1897. 



To this species belongs the specimen collected by Sheldon at 

 Fergus Falls, Otter Tail county, August, 1892, and referred by 

 him to Potentilla Nicolletii. Another specimen, also collected 

 by Sheldon, and determined as P. Nicolletii, was obtained at 

 Silver Lake, Otter Tail county, September, 1892. 



Potentilla Monspeliensis L. Sp. PI. 499. 1753. 



A specimen of this was collected at Pelican Lake, Otter Tail 

 county, August, 1892, by Sheldon, but referred to Potentilla 

 Nicolletii, in Minn. Bot. Stud. I : 16. 



