FESTI'CE/E. 619 



sli^'htly compresaod, linear, 7-9 mm. lonjr, IJ-norved, usually obtuse 

 wlicti s))ri'a(L mucroiialo, appoariiij,' ucu<c owinj,' to the itivolutioiis 

 of the mar^riiis near tlu; apex, rarely acute; lloral <,'liimt' almost 

 ioiiikIimI oh tlui back below, usually coinpresseil ab(>ve wlieu in 

 lliiwcr, or later narrowly elliptical, apex nearly flat, entire, obtuse, 

 when spread, lO-K! mm. lon^^ T-tU'rved, the alternate nerves lon;r<'r, 

 jiubescent near the marjiins, usually on the lower hall' only, awn 

 back of the a)>e.\. about 4 mm. lon^'; jmleu linear, jiectinate-(!iliate, 

 8-10 mm. lonj,'. 



Massachusi tis, Unil 1 Ki ; Miehifjan. I)(iiifihis lldinihldti. Utal 

 14-'. 144. 14.'), /'. E. low, WhcchrXU, \A'.\\ Ohio, Fraid- in is:!r; 

 l(jwa. AilliKi' "t'.W of tlu' I'. S. Dcpt. Ajjricul. ; Minnesota, Aiiliur 

 W .'). Siii/i//irrf/ 1, 4!t!); Kansas, J'cfrr Frlkrr: Colorado. Ciissii/i/; 

 Wyoming', /liijfinn (' ;i(); Montana. Srrihni'r. ]\ i//itiiiis. Andirson 

 10: Ari/(uia, Toinncij 7l<»; Washin<,'toii, Lokv; ()re<f(»n. Ctisivlc 

 1-.'S1I; ('alir(.rnia. .hmvs ;.':.'ST. 



Var. Coloradensis Vasey, Hull. Torr. Club, 15:10(l.S8,s). A 

 small form: llorets W-'i: iloral ylume <lensely (»ubescent. 



\'ar. minor Munro: N'asey. (Irassi-s V. S. l)ept. Aj,'rie. Spec. 

 l{ej)t. 44 (lSs:5). name only. About 40 cm. hiirh: leaves nearly 

 smooth; panicle (1-S cm. long; .spikelets l.'i-lS mm. long, llorets 

 (J-7 mm. long. 



Texas, JLtntrd. XeaUi'n; Arizona, Jones 4071. 



Yarmontanis Vasey, Bot. Wheel. Exi)d. '^\)-l (1878). 



Culms ;J0-()0 cm. high; panicle erect; spikelets 5-(»-llowered. 



Colorado, J'df/ernon ~(34, also found in Arizona. 



Var pauciflorus Vasey, Macoun, Cat. 4: "^38 (1888). Plants 60 

 cm. high, slender, smooth, spikelets 5-10 in number and in a raceme, 



Oregon, Howell. 



Var. purgans (L.) A. Gray, Man. Ed. 1, noo (1848). B. jmr- 

 f/a)is L. Sp. PI. 70 (1753). Floral glume clothed over the back 

 with api)rcssed hairs. 



17. B. uiGAXTKis L. Sp. PI. 77 (1753). 



An erect glabrous perennial, 90-120 cm. high. Sheaths 

 smooth, about as long as the internodes; ligule a mere ring; blades 

 Hat, scabrous above, 30 cm. long, 10-15 mm. wide. Panicle loose, 



