MANUAL OF THE GRASSES OF THE UNITED STATES 



613 



29. Paspalum virletii Fourn. (Fig. 

 890.) Culms 40 to 75 cm. tall; nodes, 

 sheaths and blades softly pilose; 

 blades flat, lax, 8 to 15 cm. long, 5 

 to 10 mm. wide, slightly narrowed to 

 the base; racemes 4 or 5, slender, 

 spreading, 2 to 7 cm. long, the 

 margin of the slender rachis some- 

 times with a few long hairs; spikelets 

 2 mm. long, 1.5 mm. wide, broadly 

 ovate; glume obscurely pubescent to 

 glabrous. % — Sandy soil, bottom 



Figure 888. — Paspalum laxum. Panicle, X 1; two 

 views of spikelet, and floret, X 10. (Richard's speci- 

 men in Paris Herbarium.) 



Figure 890. — Paspalum virletii. Panicle, X 1; two 

 views of spikelet, and floret, X 10. (Type.) 



of Sycamore Canyon, near Ruby, 

 Santa Cruz County, Ariz.; northern 

 Mexico. Rare. 



8. Rupestria. — Tufted perennials 

 with slender culms and narrow 

 blades; racemes slender, usually 

 solitary; spikelets minute. 

 30. Paspalum saugetii Chase. (Fig. 

 891.) Culms 15 to 40 cm. tall, slender, 

 densely tufted, glabrous, the nodes 

 appressed-pubescent; blades 3 to 15 

 cm. long, 3 to 7 mm. wide, flat, or 

 involute in drying, rather thick, gla- 

 brous or sometimes sparsely pilose; 

 racemes solitary, sometimes 2, 2 to 4 



Figure 889. — Paspalum pleostachyum. Panicle, X 1 ; 

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

 15756, Cuba.) 



Figure 891. — Paspalum saugetii. Raceme, X 1; two 

 views of spikelet, and floret, X 10. (Type.) 



