terminal, somewhat nodding. Vedunclts pubescent. Glumes shorter than 

 the palea?. valvts unequal. Palttr unLMjuuI, the exterior largest. Stamens 3. 

 Siifle shi>rt Iitcd grass . 



h March — April. Rich, damp soils. 3-15 ft. 



Glnus XX FKSTUCA. 



Glumes 2, unequal, iniiny flowered. PaIc(E 2, lanceolate, 

 outer one acuminate, or awneci. Panicle usually conipound. 



1 F Te.nella. S/em erect, geniculate at ihe base. Leaves pubulatc, pu- 

 bescent and scabrous on the upp«*r surface Vanicle secund, sini[)lt;; spilke- 

 lets 6-9-flo\\ercd. Glumes unequally scabrous. Valetv longer than ilic glumes, 

 exterior valve keeled, awned. 



Q April — .May Dry soils, common. 6-12 in. 



2 F For.YSTACHYA. Stem procumbent, branching, glabrous. Leaves nar- 

 row, subulate. SAfa/A.« lutii^er than the joints. Pa;iiWe secund, erect ; spike- 

 leis abotit 10-flowered, the exterior glume small, the interior larjjer and awn- 

 ed, the exterior palea? awned and keeled. 



% Sept.— Oct. Wet soils, 1-2 ft. 



3 F .Myuros. S(cm erect, geniculate at the base, glabrous. Zcaw.v subu- 

 late, pcabrouson the margins, i^hvulhs much longer than the joints. Faiticle 

 slender, crowded, not secund ; spikelets 4-7, flowered. Glumts small, exte- 

 rior pjiica concave hairy, awned. 



C? .March — April. Dry soils. 6-12 in. 



4 F PARvrFLORA. Stem slender, glabrous. Leaves linear, almost filiform. 

 Panicle slender ; spikelets sul)ulate, teree, 5-flowcred, exterior paleae awned. 



% April— May. Pine barrens 12-18 in. 



5 F Di'RiuscuLA. Stem erect, glabrous. Leaves subulate, scabrous. Pan- 

 ic/^ erect, secund, short ; spikelets 6-8-flowered. Glumes acute, unequal. 

 Faleee unawned, interior one small. 



M June— July. In fields. 12-18 in. 



6 F NrxAxs. S/em erect, terete, glabrous. JLcarea linear-lanceolate, gla- 

 brous. PawiWf secund, nodding; spikelets 6-flowered, con. pressed. Flower$ 

 unawned. 



% June— July. Woods. 2-3 feet. 



Genus XXI CERATOCHLOA. 



Glumes 6-.8-fl«)wered, shorter than the florets. PalecB tooth- 

 ed, the lower one mucronate between the teeth. Seed fur- 

 rowed, 3-horned. Panicle nearly simple. Spihelets com- 

 pressed. Florets in 2 rows. 



1 C Uxioi/)iDES. Stem erect. Leaves narrow, the sheaths bearded at the 

 throat, the lower one hairv. Fanule nodding, spreading ; spikeleLs oblong, 

 lanceolate, compres.«sed, 6-8-flowered. 



O July- Fertile soils. 12-18 inches. 



Genus XXII DAGTYLIS. 



Glumes 2, many flowered, unequal, the larger one keeled. 

 PalccE 2, without awns, lanceolate, lower (jne mucronate, the 

 upper one bifid. Spikelets clustered into a 1 -seeded head. 



1 D GixtxERATA. S/ctw erect, glabrous. Leacc* linear, scabrous. Sluath 



