Eamaley: REVISION of Minnesota hordeae. 107 



Minnesota: Probably throughout; infrequent; waste or dry- 

 places. 



Minn, specimen in herb. : Bailey 42, Vermilion Lake. 



Agropyron caiiinum (Linn.) Beauv. forma violacescens 

 n. n. Bearded Wheat Grass. 



Ji. unilaterale Cassidy. Bull. Col. Agv. Exp. Sta. 12: 63. 1890. 

 A. caniniim (Linn.) K. & S. var. unilaterale Vas. Cont. U. S. Nat. 

 Herb. 1: 279. 1893 

 Not A. unilaterale Beauv. Essai Agrost. 102. 1812. which is a synonym 

 of Festucu tenuijlora Schrad. F1. Ger. 1:345. 1806. a 

 Mediterranean species. 

 This plant is described by Dr. Vasey as usually stouter than 

 the type; the spike rigid, erect, not nodding or curved as in 

 the type, the spikelets 3 to 6 flowered more or less one sided 

 on the rachis. 



From this description and from an examination of specimens 

 distributed by the Department of Agriculture it appears that 

 this plant is very near to A. violaceum (Hornem.) Lange, forma 

 caninoides described below; it is probable that through these 

 formse the two species are related. 



North America: Minn., Neb. and Col, ; N. in the Rocky Mts. 

 to B. C. 



Minnesota: Reported from southwestern part of the state; 

 probably rare on hillsides and waste places. 



Agropyron violaceum (Hornem.) Lange. Consp. Fl. Ger. 

 155. 1880. Wheat Grass. 



Triticuni violaceum Hornem. Fl. Dan. 2044. 1827? 



Perennial, stems smooth, erect or geniculate below; leaves 1.5 

 to 2.5 dm. in length; sheaths glabrous as long as the blades; 

 blades' 2 to 5 mm. broad, commonly involute, scabrous above 

 nearly smooth below; wjlorescence 5 to 12 cm. in length, strict, 

 narrow; spikelets 8 to 15 mm. in length, 3 to 5 or 7 flowered, 

 usually purple tinged; empty glumes 6 to 12 mm. in length with 

 3 to 5 rough nerves, elliptical-lanceolate, cuspidate acuminate or 

 short awned; flowering glumes 5 to 10 mm. in length, smooth at 

 base, 3 to 5 nerved at the tips with awns from 1 to 10 mm. in 

 length. 



Europe: Scandinavia. 



North America: Q., Man., Assin. to N. W. T. and Grinnell 

 land; S. to N. Eng.; W. to Lake Superior region, Minn., Dak., 

 Rocky Mts. and Sierra Nevada. 



