408 



Bulletin No. 205 



[March, 



266 



267 



269 



270 



'271 



272 



Figs. 266-272. — 266, A. caninum, spikelet; 267, A. dasystachyum, spikelet; 

 268, A. repens, inflorescence; 269, A. repens, spikelet; 270, A. smithii, inflores- 

 cence; 271, A. smithii, si^ikelet; 272, A. tenerum, spikelet 



This species is found in cultivated ground and meadows. It ap- 

 pears to be rare in Illinois. 



ILLINOIS SPECIMENS: Without locality, Vascy. mchenry co. Eingwood, 

 yasey. 



Agropyron dasystachyum (Hook.) Scribn. 

 Northern Wheat Grass (Fig. 267) 



Culms erect, smooth, 1 to 4 feet tall ; sheatlis smooth ; blades nar- 

 row, usually involute ; spikelets 4- to 8-flowered, 10 to 20 mm. long ; 

 lemmas 9 to 12 mm. long, densely pubescent. 



This species is found in sandy places. It belongs to the northern 

 flora but may be found on the shores of Ijake Michigan and northward. 



DU PAGE CO. C. and N. W. Eailway west of Turner, Moffutt, June, 1897. 



Agropyron repens (L.) Bcauv. 

 Couch Grass. Quitch Grass. Quick Grass (Figs. 268 and 269) 



Triticum repens, Lapham '57, 586 (Plate 3, Fig. 3); Vasey '&1, 671; Bab- 

 cock '73, 97; Patterson '76, 51; Flagg '78, 282; Brendel '87, 88. Agropyron 

 repens, Higlcy and Eaddin '91, 146; Huett '97, 131. 



Culms erect, 1 to 4 feet tall, smooth; sheaths smooth, the lower 

 sometimes pubescent; blades usually flat, rough, and usually sparsely 

 pubescent above; spikelets about 5-flowered, 10 to 15 mm. long; lem- 

 mas about 10 mm. long, strongly nerved, often rough, usually termi- 

 nating in a short awn. 



