6iy CLXl. GRAMINE./E. K<EI.BRU 



about 8' long ; sheaths veined, smooth with obsolete stipules ; panicle branched, 

 spreading, somewhat 1 -sided, branches subsolitary; spikelets lance-linear, 7 9- 

 flowered, about 8" long ; lower glume smaller ; lower paka acuminate. TJ. Intro- 

 duced in fields and meadows. June, July. 



4. F. DURIUSCULA. Hard Fescue Grass. 



St. smooth, 12 18' high ; Ivs. linear, very acute, a little scabrous ; stipuks 

 membranaceous, lacerate ; panicle oblong, spreading, inclining to one side, 

 branches in pairs ; spikelets nearly terete, 5 7-flowered ; lower glume smaller, 

 upper one 3-veined ; palea unequal, lower with short awns. 1\. Fields and pas- 

 tures. A fine grass, common, Car. to Can. June, July. 



5. F..NUTANS. Willd. 



St. erect, slender, smooth, with black nodes, about 3f high; Ivs. narrow- 

 linear, a foot long, veined; panicle slender, diffuse, at length nodding, branches 

 in pairs ; spikelets lance-ovate, 3 5-flowered ; fls. smooth, awnless and nearly 

 veinless. 1\. Open woodlands, in most of the States. June. 



6. F. FASCICULARIS. Willd. 



St. much branched from the base, with short internodes, procumbent, 

 geniculate, 12 18' long; Ivs. linear, very long, 5-veined, scabrous, on long, 

 loose sheaths; panicle erect, inclining to one side, with strict, spike-form 

 branches ; spikelets appressed, secund, 8 10-flowered ; glumes 1-veined, lower 

 one very short ; lower palea tipped with awns of their own length. (J) Wet 

 meadows, Mid. States. Aug. 



7. F. ovlNA. SJieep's Fescue. 



St. erect, ascending at base, 6 10' high ; Ivs. very narrow, rough, radical 

 ones very numerous, 2 4' long, cauline fevy, short, erect ; panicle few-flowered, 

 simple, contracted ; spikelets ovate, 4-flowered ; paka roundish. 1\. 1 A valu- 

 able grass, recently introduced. June. 



8. F. MYURUS. 



St. 6 12' long, erect, geniculate near the base ; Ivs. 2 3' long, subulate, 

 concave ; slip, bifid or retuse ; panicle slender, crowded ; spikelets 4 7-flowered ; 

 glumes minute, equal; fls. subulate, hairy; lower palea with an awn twice its 

 length ; sta. 1 ; stig plumose, white. Sandy fields, N. J. to Car. 



37. DIARRHENA. Palis. 



Gr. Sis , two, appr/vris, rough ; from the two scabrous keels of the upper palese. 



Panicle racemose or simple ; glumes 2, very unequal, 2 5-flow- 

 ered, rigid, acuminate, mucronate ; palese cartilaginous, lower cuspi- 

 date, upper much smaller, emarginate ; caryopsis coated, as long as 

 the upper palea : scales ovate, ciliate. 



D. DIANDRA. Wood. (D. Americana. Palis. Festuca diandra. MX.) 

 St. erect, nearly leafless, slender, rigid, 1530' high; Ivs. few, subradicaL 

 broadly linear, flat, rough-edged, 10 16' by 5 7", nearly glabrous ; sheath* 

 close ; stip. obsolete ; panicle very simple and slender, branches erect, few ; spike- 

 lets 2-flowered; glumes broad-ovate, upper twice larger, 5-veined; palea much 

 longer than the glumes, the upper with 2 roughish, green keels, arid conspicu- 

 ously mucronate; sta. 21 River banks, Ohio to 111. ! 



38. KCELERIA. Pers. * 



In honor of M. Koeler, a German botanist. 



Spikelets compressed, 2 3-flowered; glumes 2, unequal, shorter 

 than the flowers ; upper flower pedicellate, with a short, awn-like rudi- 

 ment at the base of the upper palea ; paleac 2, the lower awnless, or 

 awned beneath the tip. 



1. K. CRISTATA. Smith. (K. nitida. Nittt. K. tuberosa. Pers. ?) 



81. 20 30' high, smooth, leafy to one-half its height, rigidly erect; Ivs. 



flat, erect, pubescent, 2 3' by 1 2", shorter than their pubescent sheaths ; stip. 



short, lacerate ; panicle spicate, narrow, 3 5' long, 6 8" diam., branches very 



short ; spikelets 2" long, silvery and shining, compressed, about 2-flowered, with 



