Wheeler: THE FLORA OF THE RED RIVER VALLEY. 575 



Agropyron tenerum VASEY, Coult. Bot. Gaz. 10 : 258. 1885. 

 Coll. : MacMillan & Skinner 304, 335, Crookston ; Ballard 

 2569, St. Vincent. 



Hordeum jubatum L. Sp. PI. 85. 1753. 

 Coll. : Ballard 2520, Fergus Falls. 



Elymus virginicus L. Sp. PI. 84. 1753. 



Coll. : Ballard 2629, St. Vincent; MacMillan & Skinner 

 235, Crookston. 



Elymus canadensis L. Sp. PI. 83. 1753. 



Coll.: Ballard 2599, Humboldt ; 2713, Northcote ; Mac- 

 Millan & Skinner 68, Crookston ; 267, St. Hilaire. 



Elymus macouni VASEY, Bull. Torr. Club, 13: 119. 1886. 



Coll. : Ballard 2570, St. Vincent. 

 Not previously reported from Minnesota. 



Hystrix hystrix (L.) MILLSP. Fl. W. Va. 474. 1892. 



Coll.: MacMillan & Skinner 107, Maple lake; 265, St. 

 Hilaire. 



CYPERACEiE. 



Cyperus diandrus TORR. Cat. PL N. Y. 90. 1819. 

 Coll. : Ballard 2537, Fergus Falls. 



Cyperus speciosus VAHL, Enum. 2 : 364. 1806. 

 Coll. : MacMillan & Skinner 130, Maple lake. 



Eleocharis aciculails (L.) R. & S. Syst. 2 : 154. 1817. 

 Coll. : MacMillan & Skinner 141, Maple lake. 



Eleocharis intermedia (MUHL.) SCHULTES, Mant. 2 : 91. 1824. 

 Coll. : Ballard 2656, St. Vincent. 



Scirpus lacustris L. Sp. PI. 48. 1753. 



Coll. : Ballard 2587, St. Vincent, MacMillan & Skinner 

 104, Maple lake. 



Scirpus campestris BRITTON, in Britton & Brown, 111. Fl. I : 



267. 1896. 



Coll. : Ballard 2539, 2544, Fergus Falls. Not previously 

 reported from Minnesota. 



Scirpus atrovirens MUHL. Gram. 43. 1817. 



Coll.: MacMillan & Skinner 126, 127, Dugdale ; 390, 

 Holmes; 310, Crookston. 



