GRAMINEZ 183 
Spica- Venti, Beauv); flowering glume with a long awn, 
panicle large (3 in.), spreading; cultivated land. A. zn- 
terrupia, L., similar, but panicle narrow, interrupted > 
cultivated land. 
14. CALAMAGROSTIS, Adans. 
Rachis of spikelet with long silky hairs; spikelets in 
a close panicle with whorled branches, 1-flowered; stem 
tall, leafy. 
A. Flowering glumes hyaline:—C. LEfzgejos, Roth; 
panicle open, awn of flowering glume inserted above the 
middle; wet places. C. /anceolata, Roth; panicle open, 
awn terminal; swamps. C. ¢ezella, Host.; stem 18-24 
in., slender, hairs of rachis few; dry; alpine. C. Ha/- 
leriana, DC.; stem 2-34 ft., rachis very hairy; alpine 
meadows. C. “4torea, DC.; panicle rather drooping, stem 
usually very rough; river-banks, local. 
4. Flowering glumes not hyaline, or only at the edge, 
awn of flowering glume twisted (Deyeuxza, Clar.) :—C. 
varia, Lk. (montana, DC.) ; awn bent, hairs of rachis very 
long; bushy; alpine. C. arundinacea, Roth (sylvatica, 
DC.); hairs of rachis not so long, awn bent; bushy; 
alpine. C. meglecta, Fr.; awn straight; peat-bogs, very 
rare ; Pontarlier, Constance. 
15. LASIAGROSTIS, Lk. 
Resembling Calamagrostis, but only the empty glumes 
enveloped in long silky hairs. 
L. Calamagrostis, Lk.; panicle spreading, white, shin- 
ing, awn of empty glume very long; rocky; alpine. 
