196 



Fig. 402. Calamagrostis niacoiiniana Vasey, Contr. Xat. llcrl). 

 3:81. 1S92. {Deijetixia viactmniaua \'asey, Coult. l?ot. Ga/.. 10 : 

 2!I7. 18X5.) Macoun's Keed-isf.xt.— a slender, erect, leafy per- 

 ennial 3 to 6 dm. liigli, with narrow, flat leaves and narrow or (in 

 antlicsis) open, pyramidal ]iani(le8 6 to 8 cm. louir. Spikelets 

 ■with nearly equal empty glumes (a) about 3 mm. long, scarcely 

 exceeding the short-awned flowering glume. — Moist sandj' soil, 

 AssinilMiia to Missouri, Montana, and Washington. May-August. 



