Sheldon: FURTHER EXTENSIONS OF PLANT RANGES. 71 



Collected in low grounds on the banks of the Snake river 

 near Mora, Kanabec county, Minn. {E. P. S., July, 1892); on the 

 banks of the Little Stewart river, near Waldo, Lake county, 

 Minn. {E. P. S., June, 1893); north of Gull lake, and peat bog, 

 near lake Kilpatrick, Cass county, Minn. (C. A. Ballard, July, 

 1893). 



Nasturtium obtusum Nutt. in T. & G. Fi. 1:74. 1838. 



Hitherto reported from Minnesota as occurring at Fergus 

 Falls, Otter Tail county, Minn. (E. P. S., Aug., 1892). Col- 

 lected also near Poplar Island lake, Ramsey county, Minn. {E. 

 P. S., Sept. 1893). 



Erysimum syrticolum Sheld. Bull. Torr. Bot. Club 

 20:185. 1893. 



This species was collected on the gravelly hills northeast of 

 Minneapolis and contiguous to the recently built Belt Line R. 

 R. tracks (E. P. S., Aug., 1893). 



Saxifraga virginiensis Michx. F1. Bor. Am. 1 : 269. 1803. 



Not previously reported from northern Minnesota, but re- 

 ported from Minnesota ( Lapham) and from Hastings, Dakota 

 county, Minn. {Mrs. Ray). 



Collected in abundance in the crevices of rocks near Two 

 Harbors, Lake county, Minn. {E. P. S., June, 1893). 



Ribes hudsonianum Richards in Frankl, Journ. 731. 

 1823. 



This has recently been reported from Grand Marais, Cook 

 county, Minn., by L. S. Cheney." 



It was collected near Milaca, Mille Lacs county, Minn. {E. 

 P. S. , July, 1892) ; and at Tower, St. I^ouis county, Minn. {E. 

 P. S., June, 1893). 



Poteiitilia gracilis Dougl, var. nuttallii (Lehm.) 



Potentilla nuttallii Lehm. lad. Sem. Hort. Hamb. Add 12. 1851. 



P. chrysantha Lehm. in Hook. Fl. Bor.-Aru. 1: 193. 1833. 

 not P. chrysantha Tukv. Seruin. Vrat. 1818. 



P. rigida Nutt. in Journ. Acad. Philad. 7:20. 183i. 

 not P. rigida Wall. List. E. Ind. Mus. n. 1009. 1828. 



P. gracilis Dougl. var. rigida Wats. Proc. Am. Acad. 8: 557. 1873. 



Not previously reported from Minnesota. Collected in grass 

 by roadsides near Mound City, Hennepin couaty. Minn. (F. H. 

 Burglehaiis, Sept., 1892). 



7. Cheney, L. S., loc. cit. 237. 1893. 



