612 CLXI. GRAMINE^. K(Eleria. 



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

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

 flowered, about 8" long ; lower glume smaller ; lower palea acuminate, — % Intro- 

 duced in fields and meadows. June, July. 



4. F. DL'RiuscuLA. Hard Fescue Grass. 



St. smooth, 12 — 18' high ; lis. 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; paka unequal, loioer with short awns. — % 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; T)anicle slender, diff'ase, 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 — IS' 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; gluvies 1-veined, lower 

 one very short; loiver palea tipped with awns of their own length. — (T) Wet 

 meadows, Mid. States, Aug, 



7. F. ovlNA. Sheep's Fescue. 



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

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

 simple, contracted ; spikelets ovate, 4-flowered ; palece roundish. — 'Z|. 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 ; pajiicle slender, crowded ; spikelets 4 — 7-flowered ; 

 glumes minute, equal; Jls. 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. 6iS, two, appr]vr}i, 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. Pala^. Festuca diandra. Mx.) 

 St. erect, nearly leafless, slender, rigid, 15 — 30' high; Ivs. few, subradical, 

 broadly linear, flat, rough-edged, 10 — IG' by 5 — 7", nearly glabrous ; sheaths 

 close ; slip, obsolete ; panicle very simple andslender, 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, and conspicu- 

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



38. KCELERIA. Pers. 



In honor of M. Kaler, a German liotanist. 



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 ; palesB 2, the lower awnless, or 

 awned beneath the tip. 



1. K. CRisTATA. Smith. (K. nitida. Null. 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 ; slip. 



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



short ; spikelets 2'' long, silvery and shining, compressed, about 2-fl()wered, with 



