278 MOWOCOTYLODENOTJS. 



in two rows. Spikelets compressed, the lower palea carinate, 

 raucronate, the upper one s'lbulate. Scales emarginate. 

 Seed 2-horned. 



1 U Paniculata. Stem erec^, glabrous. Leaves long, narrow, entire, 

 glabrous. Sheaths hairy at the throat. Panicle large. Glumes 4-5 many 

 flowered ; exterior palea niucronate, 6-nerved, interior one ciliate. 



% July — Aug On the sea coast. 4-8 ft. 



2 U Spicata <S/e?re erect, terete, glabrous. Zeoves distichous, subulate, 

 involute. Panicle compressed- Glumes 2-3, 8-10-flowered. 



% July — Sept. On ihe ssa coast. 1 ft. 



3 U Latifolia Stem terete, glabrous. Leaves flat, glabrous, throat of 

 the sheath ciliate. Glumes 3, 7-14-flo\vered, the upper ones sterile, exterior 

 palea many nerved, with the keel ciliate. Flo7cers generally monandrous. 



% August — Sept. Mountains. 



4 D NrriDA. Stem glabrous. Leaves flat, narrow. Panicles expanding, 

 few flowered. Glumes 3, many lowered. Flowers monandrous. 



%. June— July. Middle 'Ga. 2-5 ft. 



5 U Gkacilis. Stem glabrous, erect. Leaves scabrous on the upper sur- 

 face, linear, flat. Glumes 3, 3-flowered. Panicle long, erect,, with appressed 

 branches. Flowers monandrous. 



% Through the ^ immer. Very common. 1-2 ft. 



Genus XXVI BRIZA. 



Glumes 2, many flowered. Flowers imbricate, in two 

 rows. PalecB ventricose, !o\\cr one embracing the upper. 

 Seed beaked. Panicle compound, loose, with pendulous 

 branches. 



1 B Eragrostis. Stem decumbent, geniculate, glabrous. Leaves scab- 

 rous on the upper surface, liner-lanceolate. Sheaths shorter than the joints, 

 bearded at the throat. Panicle compound ; spikelets cordate at the base. — 

 Flowers numerous ; exterior palea 3-nerved, acute, the interior one ciliate 

 along the nerves. 



O June— Nov. Cultivated lands, very common. 12-18 in. 



Genus XXVII MELICA. 



Glumes 2, unequal, 2~flowered. PalecB 2, unequal ; upper 

 florets sterile. 



1 M Glabra. Stem erect, terete, glabrous. Leaves linear with long 

 sheaths. Flowers in paniculate racemes. i?aeemes 3-5-flowered. Glvmes 

 shorter than the palese, the interior palea ciliate. 

 % April— May. Mid. Car. & Ga. 2-3 ft. 



CHLORIDES. 



Inflorescence spiked ; spikelets solitary, with the upper flo- 

 ret abortive and different from the rest. Glumes keeled ; the 

 lower palea with 2 keels, usually bearded. 



Genus XXVIIl. CYNODON. 



Spikes digitate. Spikelets 1-sided, in a single row, fili- 



