613 CLXI. GRAMINEJE. KCELERIA. 



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 palea acuminate. 1\. 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 ; stipules 

 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. 7J. 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. % 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 palece tipped with awns of their own length. (J) Wet 

 meadows, Mid. States. Aug. 



7. F. ovlNA. Steep's Fescue. 



St. erect, ascending at base, 610' high ; Ivs. very narrow, rough, radical 

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

 simple, contracted ; spikelets ovate, 4-flowered ; palece roundish. Ij. 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. Q Sandy fields, N. J. to Car. 



37. DIARRHEN-A. Palis. 

 Gr. Sis, two, apprivris, 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 ; paleae 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. Me.) 

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

 broadly linear, flat, rough-edged, 1016' by 5 7", nearly glabrous ;. sheaths 

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

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

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

 ously mucronate; sta. 27 River banks, Ohio to 111. ! 



38. KCELERIA. Pers. 



In honor of M. Kceler, 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 ; palese 2, the lower awnless, or 

 awned beneath the tip. 



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



St. 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, 68" diam., branches very 



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



