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. Pl. 85. 1753. 
Coll. : Ballard 2520, Fergus Falls. 
Elymus virginicus L. Sp. Pl. 84. 1753. 
Coll.: Ballard 2629, St. Vincent; MacMillan & Skinner 
235, Crookston. 
Elymus canadensis L. Sp. Pl. 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.) Mizusp. Fl. W. Va. 474. 1892. 
Coll.: MacMillan & Skinner 107, Maple lake; 265, St. 
Hilaire. 
CYPERACEZ. 
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 acicularis (L.) R. & S. Syst. 2: 154. 1817. 
Coll. : MacMillan & Skinner 141, Maple lake. 
Eleocharis intermedia (Muuu.) ScHuLTEs, Mant. 2:91. 1824. 
Coll.: Ballard 2656, St. Vincent. 
Scirpus lacustris L. Sp. Pl. 48. 1753. 
Coll.: Ballard 2587, St. Vincent, MacMillan & Skinner 
104, Maple lake. 
Scirpus campestris Britton, in Britton & Brown, Ill. Fl. 1: 
267. 800. 
Coll.: Ballard 2539, 2544, Fergus Falls. Not previously 
reported from Minnesota. 
Scirpus atrovirens Munv. Gram. 43. 1817. 
Coll.: MacMillan & Skinner 126, 127, Dugdale; 390, 
Holmes; 310, Crookston. 
