Wheeler: catalog of Minnesota grasses. 89 



Hubbard county ; Frost, Minneapolis ; Bailey, Vermilion Lake ; 

 Sedge, Detroit. 



Aristida curtissii (A. Gray) Nash in Britton, Man. 94. 1901. 

 Curtiss's three-awned grass. 

 In dry soil. Not previously reported from Minnesota. 

 Herb. : Upham, Minneapolis, 1884. 

 Aristida basiramea Engelm. Vasey, Coult. Bot. Gaz. 9 : 76. 

 1884. Poverty grass. Three-awned grass.. 

 Frequent in dry soil south. 



Herb.: Sandberg, Wollan, Aiton, Hennepin county; Hol- 

 zinger, Winona county ; Sandberg, Crow Wing county ; Shel- 

 don 6169, Taylors Falls. 



Aristida longiseta robusta Merrill, U. S. Dept. Agric, Div. 

 Agrost. Cir. 34: 5. 1901. Long-awned aristida. 

 Aristida -purpurea of authors, not Nutt. 

 Infrequent in dry soil southwest. 



Herb. : Leiberg, Rock and Blue Earth counties ; Skinner, 

 Heron lake; Sheldon, Lake Benton. 



Aristida purpurea Nu.tt. Trans. Am. Phil. Soc. 5 : 145. 1837. 

 All reports of this species from Minnesota should be referred 

 to Aristida longiseta robusta Merrill. 



Aristida purpurascens Poir. in Lam. Encycl. Suppl. 1 : 452. 

 1810. Purplish aristida. 

 Reported from Minnesota by Lapham but probably of doubt- 

 ful occurrence. 



Aristida tuberculosa Nutt. Gen. 1: 57. 1818. Sea-beach 

 aristida. 

 ' Reported from Minnesota by Lapham but is not represented 

 by specimen in the University herbarium. 



Stipa macouni Scribn. ; Macoun, Cat. Can. PI. 5 : 390. 1890. 

 Macoun's stipa. 

 Reported from north shore of Lake Superior by Macoun. 

 No Minnesota specimens known to have been collected. 

 Stipa viridula Trin. Mem. Acad. St. Petersb. (VI.) 2 : 39. 

 1836. Green stipa. 

 Rare, west. 



Herb. : Skinner 41, Heron lake. 

 Stipa avenacea L. Sp. PI. 78. 1753. Black oat-grass. 



Reported by E. P. Sheldon in the Minnesota Botanical 

 Studies from Poplar Island lake, Ramsey county. The speci- 



