624 MISC. PUBLICATION 200, U. S. DEPT. OF AGRICULTURE 



racemes usually 3 or 4, at first erect, 

 4 to 16 cm. long; rachis slender, sub- 

 flexuous; spikelets distant to irreg- 

 ularly approximate, elliptic-obovate, 

 3.3 to 4 mm. (rarely to 4.2 mm.) long; 

 second glume and sterile lemma con- 

 spicuously nerved. % — Sandy 

 pine and oak woods, occasionally in 

 hammocks, nowhere common, on the 

 Coastal Plain from Virginia to Flor- 

 ida, Tennessee, Te xas, andOklahoma. 

 A specimen from Virginia with villous 

 foliage, long-exserted panicle, and 

 spikelets 4.2 mm. long has been named 

 P. bifidum var. projection Fernald. 

 The various differences, pubescence, 

 long-exserted panicles, diverging lower 

 raceme, spikelets 4.2 mm. long, and 

 longer first glume are found, not co- 

 ordinated, in occasional specimens 

 throughout the range. 

 16. Malacophylla. — A single species 

 in North America; both glumes 

 of spikelet suppressed (the sec- 

 ond half as long as the spike- 

 Figv-re sol— PaspaiumpKcatuium. Panicle, x i; two let in one species), the fertile 



views of spikelet, and floret, X 10. (Chase 7081, Ga.) 



branching from the lower and middle 

 nodes ; leaves conspicuously papillose- 

 pilose or sometimes nearly glabrous; 

 racemes 1 to 4, ascending or spread- 

 ing, 2 to 4 cm. long; spikelets 2.2 to 3 

 mm. long, obovate, pubescent to gla- 

 brous; fruit dark brown, shining. 

 O — Roadsides, Texas (Jasper 

 County); northern Mexico to Brazil; 

 Cuba, Trinidad. 



Paspalum scrobiculatum L. Stouter 

 and with larger spikelets, unequally 

 biconvex, the sterile lemma loose and 

 wrinkled. O — Ballast, Camden, 

 N. J.; Abilene, Tex.; Asia; cultivated 

 in India. 



15. Bifida. — A single species ap- 

 proaching Panicum; spikelets 

 turgid; a minute first glume usu- 

 ally developed. 

 48. Paspalum bifidum (Bertol.) 



Nash. (Fig. 909.) Culms erect from 



short rhizomes, 50 to 120 cm. tall; 



blades flat, 10 to 50 cm. long, 3 to 14 



• i -ii , i i t_ Figure 905. — Paspalum texanum. Panicle, X lj 



mm. wide, villous to nearly glabrous; spikelet, and floret, x 10. (Type.) 



