MANUAL OF THE GRASSES OF THE UNITED STATES 



605 



often more than 5; spikelets glabrous. 

 % (P. geminum Nash; P. laeviglume 

 Scribn.) — Moist low open ground, 

 woods, and ditch banks, North Caro- 

 lina, Ohio, and Indiana to Florida, 

 west to Kansas and Texas ; adventive, 

 Chester, Pa. 



7. Paspalum lividum Trin. Lc-ng- 

 tom. (Fig. 868.) Glabrous; culms soli- 

 tary or few in a tuft, from a decum- 

 bent or creeping base, 50 to 100 cm. 

 tall; blades 15 to 25 cm. long, 3 to 6 

 mm. wide; racemes usually 4 to 7, as- 

 cending, flexuous; rachis 1.5 to 2 mm. 

 wide, dark livid purple ; spikelets 2 to 

 2.5 mm. long, obovate, subacute. % 

 — Low ground, wet savannas, and 

 swamps, and along streams and 

 ditches, Alabama to Texas and Mex- 

 ico, south to Argentina; Cuba. 



to 9 cm. long; rachis 1 to 1.5 mm. 

 wide; spikelets imbricate, about 3 

 mm. long, elliptic, apiculate, softly 

 pubescent. % (P. buckleyanum 

 Vasey.) — Wet prairies, alkaline mead- 

 ows, and along irrigation ditches, 

 sometimes growing in the water, 

 southern Texas and throughout Mex- 

 ico. 



4. Notata. — Culms in dense tufts, 



compressed, leafy at base; 



sheaths keeled; racemes 2, rarely 



3, paired or nearly so; spikelets 



solitary, glabrous. 



9. Paspalum notatum Fliigge. Ba- 



hia grass. (Fig. 870.) Culms 15 to 50 



cm. tall from a short, stout, woody, 



horizontal rhizome; blades flat or 



folded; racemes recurved-ascending, 



usually 4 to 7 cm. long; spikelets 



Figuee 869. — Paspalum hartwegianum. Panicle, X 1 

 two views of spikelet, and floret, X 10. (Buckley, 

 Tex.) 



8. Paspalum hartwegianum Fourn. 

 (Fig. 869.) Culms ascending from a 

 decumbent base, 50 to 150 cm. tall; 

 blades 10 to 35 cm. long, 2 to 6 mm. 

 wide, the margins very scabrous; 

 racemes usually 4 to 7, ascending, 2 



Figure 870. — Paspalum notatum. Panicle, X 1; two 

 views of spikelet, and floret, X 10. (Chase 6639, 

 P. R.) 



ovate to obovate, 3 to 3.5 mm. long, 

 smooth and shining. % — Intro- 

 duced sparingly in New Jersey, North 

 Carolina, Florida, Louisiana, and 

 Texas; Mexico and the West Indies 

 to South America. 



