191 



Fig. 487. Calamagrostis iiiexpansa A. Gray iu Torr. Fl. N. Y. 



2 : 445, t. 152. lf<43. {('alainaorosiis conjhtis A. Cray, Man. Ed. 2, 

 547, not Nntt. ?) BoG Rkku-guass. A sltudcr, erect perouiiial 



3 to 6 dm. high with narrow, flat leaves and coutracted panicles 

 5 to 18 cm. long. Spikelcts 3 to 4 nitu. long witli nearly ecpial, 

 acute empty glumes (a) about the length of the ilowering glume, 

 the basal hairs of which nearly ecpial it in length or are one-third 

 shorter. Damp, sandy soil, New York and New Jersej' westward 

 to South Dakota and Colorado. .Tnly-St ptt-mber. 



