794 Oedeb 166.— GRAMINE^. 



§ Fls. awned.— Awns conspicaous, about equaling or exceeding the pales -Nos. 1, t 



—Awns much sLorter than the l.inoeolate pales Nos. 8, 4 



§ FLs. awnless.— Panicle contracted, with short, ascending branches Nos. 6, 6 



— Panicle very loose, with spreading or reflexed branches Nos. 7, 8 



1 P. MyCinis L. Culm 6 — 12' long, erect, geniculate near the base; Iva. 2 — 3' 

 long, subulate, concave; stip.^bifid or retuse; panicle slender, crowded; spikelets 



4 6-flowered ; glumes minute' equal ; fls. subulate, hgiry ; lower pale with an awn 



twice its length; sta. 1 ; stig. plumous, white. — ® Sandy fields, Car. to Ga. Mar., 

 Apr. 



2 P. teaella "Willd. Slender Pesoue. Culm filiform, wiry, often growing in 

 tufts and geniculate at base, 6 — 12'; tos. erect, linea/r-setaceous, 2 — 3' long; sheathe 

 subpubescent, with lacerated stipules ; pan. simple, contracted, rather secund, 

 branches alone or in pairs; spikelets 6 to 9-flowered, with subulate, subequal 

 glumes, at length brownish ; fls. subulate, their awns of about equal length.—^ 

 Sandy fields, N. Eng to lU. and S. States. 



3 P. ovina L. Sheep's PEScnE. Culm erect, ascending at base, 6 — 10'; Ivs. 

 very narrow, rough, radical ones very numerous, 2 — 4' long, cauline few, short, 

 erect; pan. few flowered, simple, contracted; spikelets ovate, about 4-Jiowered; 

 pale lance-ovate. — 11 A valuable grass for pasturage. Jn. § Eur. 



/3. vivipjiRA. Glumes and pales changing to leafy tufts. — Mts. 



4 F. duriliscula L. Hard Pescde. Culm smooth 12 — 18' ; Ivs. linear, very 

 acute, a little scabrous; stipules membranaceous, lacerate ; pan. oblong, spreading, 

 inclining to one side, branches in pairs; spikelets -nearly terete, 5 — 1-flowered; 

 lower glume smaller, upper one 3-veined ; paleas unequal, lower with short awns, 

 — If Fields and pastures. A fine grass, common. Gar. to Can. June, July. 



/3. rubra. Spiljelets 7 to ll-flowered ; herbage often tinged with red. — Dry 

 fields, eastward. 



5 F. prat^nsis Huds. Meadow Fescue. Culm smooth, 3 — 4f high ; Ivs. lance- 

 linear, smooth, rough-edged, a foot long, on smooth, loose sheaths ; panicle sub- 

 erect, branches short, in pairs, ascending ; spikelets lance-ovate, acute, 6 to 9-flow- 

 ered, 6 — 9" long, racemous on the branches ; lower glume shorter ; lower paleae 

 acuminate or mucronate. — A fine grass, in meadows, IJ. S. and Can. Jn. § 



6 P. el^tior L. Ta](.l Fescue Grass. St. smooth, 2 — 3f high ; Ivs. lanee-Iinear, 

 veined, smooth, rough-edged, about 8' long ; sheaths veined, smooth with obso- 

 lete stipules ; panicle branched, erect in flower, spreading, somewhat 1-sided, 

 branches subsolitary, spikelets short, altenoate somewhat secund, 2 to 5-flowered, 

 about 3" long; pales smooth, chartaceous, barely acute. — ^Fields and meadows. 

 Jn., JL § 



7 P. rigida Kunth. Culm decumbent, ascending 3 to 5' ; Ivs. much shorter, subu- 

 late, involute when dry ; pan. subsimple, secund, an inch or two long, the branches 

 alternate, oppressed; spikelets lance-linear, 5 to 9-flowered; fls. acutish, terete, 

 purplish. — In dry soils. Car., near the coast. Plant dwarf and rigid. Apr., May. 



S P. nvitans "WiUd. NoDDlua Fescud. Culm erect, slender, smooth, with black 

 nodes, about 3f high ; Ivs. narrow-linear, a foot long, veined ; panicle slender, dif- 

 fuse, at length nodding, and the slender branches deflexed; spikelets lance-ovate, 3 — 5- 

 flowered; fls. smooth, awnless and nearly veinless. — y Open woodlands, in most 

 of the States. June. (F. Shortii Kunth., when the grass is stouter and the spike- 

 lets about 5-flowered.) ' 



37. EATO'NIA, Eaf. (Dedicated to Prof. Amos Haton, the well- 

 koown author of the " Manual of Botany," which bears his name.) 

 Spitelets mostly 2-flowered, numerous, paniculate, silvery ; glumes 2, 

 very dissimilar, the lower linear, 1-veined, upper broadly obovate, ob- 

 tuse or abruptly pointed, 3-veined, with broad, soarious margins ; pales 

 obtusish, awnless, chartaceous, glabrous ; caryopsis oblong. — If Smooth 

 and delicate grasses with simple-, caespitous culms. 



E. obtiisata Gray. Culm erect, geniculate below, leafy, 1 to 2f ; nodes pubes- 

 cent, blackish, contracted ; Ivs. 3 to 6' by 2", scabrous, acuminate, shorter than 

 the sheaths ; stip. lacerate ; pan. contracted, 3 to 5' long, 6 to 12" diam., dense, 

 Irramches fascicled, short, oppressed; spikelets IJ" long, 2-flowered, tumid ; lower 



