n24 POACK.K. 



(!uliforniii to Mexico. 



A. A. canina li. S|». IM. (i2 {17!)'.]). Trirhoilium nniinuw Schrail. 

 Fl. (icrm. 1 : r.iS (iSdC). .tifnni/us nniitms Hciiuv. A^Tont. 1 l«l 

 (LSI*.'). Hkown Hknt (iiiAss. A. \iirtf-An{//iir Vuscv, in part. 



Culms sloiider. itcoI or sprt'iKlinjf, '^()-<(0 ciii. lii<,'li. from miittod 

 perennial I'ootstocks. Shcatlis smooth, mostly lon^rer than tlio in- 

 ternodt's; lij,'tilo obtuse, 'Z~'.\ mm. lou<f; Iiliides of sterile shoots in- 

 volute, slender, r)-l() cm. loii<;, the upper lliil. I*unicle purple, 

 hrowu or ;,'rcenish, open. .')-!, ^ cm. lonj;; niys scubrid, in clusters of 

 ;$-.'» ]'!, in paii's or .solitary above, rou;,hened. branchin<j above the 

 middle. S|)ikelets '2 '.\ mm. Ion;:; eJupty ^'lumes sliirhlly uiieipial. 

 very acuite; lloral ;;lum(! truncate with .') excurrent nerves, one-third 

 shorter than tint empty ^dumes. I>earin;,'on the back at or below tiie 

 middle a twisted, exsertecl awn; palea absent or very small. Very 

 varial)le. Fi^'. 71, Vol. 1. 



Vermont, Prinf/lc ; New Hampshire, /•liii/ 4:i»'».') from Con^don. 



Found in the mountains of New Knuland to the Kocky iMoun- 

 tains; also in South Anwrica, Europe, Siberia, western Asia, 

 Australia, New Zealand. 



Var. alpina Oakes. (^at. Vt. IM. [reprint 12] (1842), not J. 

 ttlpiiiii Scop, of Europe. I\'rhaps hardly a variety. 



Culms S-2(> cm. hi^h ; blades all involute; panicle 2-8 cm. long, 

 open; spikelets 2 mm. loti^'. 



Vermont, Priiujle, Clark 2!)50 from Blake; New Hampshire, 

 C. I'J. Faxon. 



Mountains of Maine, Labrador, to New York. 



Var. stolonifera N'asey, Monog. Grasses U. S. & Brit. Am. 75 

 (1800). 



Stobmiferous; blades flat, tliin, 2-4 mm. wide; empty glumes 

 more unequal; floral glume but little shorter, awn straight. 



Oregon, IleNdrrson, IfoiirU. 



In looking over specimens from all parts of p]urope, some from 

 India and elsewhere, the chief peculiarity seems to be the presence 

 of an awn. Almost any style of small brown slender Agrosfis is 

 called A. canina, provided it has an awn sticking ont of tlie spike- 

 let. 



