Ramaley: REVISION of Minnesota hordeae. 113 



Perennial, more or less pubescent throughout; stems 5 to 10 dm. 

 in length, slender, smooth, erect, or geniculate below; leaves 2 

 to -1 dm. in length; sheaths varying from glabrous to somewhat 

 pubescent; blades 6 to 12 mm. broad, flat somewhat scabrous 

 both above and below; inflorescence 5 to 12 cm. in length, erect 

 or slightly nodding, long peduncled; sjAkelets usually in pairs 1 

 to 2 or 3 flowered; empty glumes linear- subulate, 15 to 25 mm. 

 in length including the setaceous awns, spreading, hispid or 

 hispid ciliate; floioering glumes 6 to 10 mm. in length, ovate or 

 ovate-lanceolate usually somewhat hispid, 1 to 3 nerved at the 

 tip, armed with setaceous awns 2 to 3 mm. in length. 



North America: Ont. to N. Y., N. J. and N. C; W. to Minn., 

 Neb. and Ark. 



Minnesota: Infrequent throughout the state; roadsides and 

 borders of lakes and streams. 



Minn, specimens in herb.: Sheldon 8Jf2, Sleepy Eye; 976h: 

 Sleepy Eye. 



Elymus canadensis Linn. Sp. PI. 83. 1753. Nodding 

 Wild Rye. 



E. x)hiladelphicus Linn. Amoen. Acad. 4:266. 1759. 

 Hordeum patulum Moench. Meth. 199. 1794. 

 E. glaucifolius Muhl. in Willd. Enum. Hort. Berol. 131. 1809. 

 E. canadensis Linn. var. glaucifolius T. and G. Fj. Am. 1: 137. 



1838. 

 E. canadensis Linn. var. glaucifolius A. Gray Man. ed. v. 639. 



1868. 



Perennial, stout, often somewhat glaucous throughout; stems 

 6 to 12 dm. in length, smooth, erect or suberect; leaves 3 to 5 

 dm. in length; sheaths mostly smooth, somewhat pubescent, 

 nearly as long as the blades; blades 6 to 15 mm. broad, abruptly 

 contracted at the base, scabrous above and often also below; 

 inflorescence 1 to 2 dm. in length, stout, nodding or curved; 

 spikelets 12 to 18 mm. in length, 3 to 5 flowered; e;»p^:j/ glumes sub- 

 ulate, long awned, scabrous, 1 to 3 nerved; flowering glumes 10 

 to 15 mm. in length, mostly 3 nerved, bristly hairy, lanceolate, 

 acuminate, with awns 3 to 7 cm. in length, more or less 

 curved or spreading. 



This species shows considerable variation. Some of the 

 specimens bear a somewhat close resemblance to E. striatus 

 Willd. 



North America: N. S., Q,, Ont., Man., to Rocky Mts. to B. 

 C. and Or.; S. to N, E., N, J. and mts. of Ga.; W. to Minn., 

 Neb., Colo., Tex. and N. M. 



