584 



MIS C. PUBLICATION 200, U. S. DEPT. OF AGRICULTURE 



Figure 841. — Digitaria pauciflora. Plant, X 1; spike- 

 let and floret, X 10. (Type.) 



pilose toward the base; blades 10 to 

 30 cm. long, 3 to 5 mm. wide, pilose, 

 the margins scabrous; racemes 5 to 9, 

 8 to 12 cm. long, ascending or spread- 

 ing, naked at base; spikelets solitary 

 or paired, 2.5 to 2.8 mm. long, gla- 

 brous, one subsessile, the other pedi- 

 cellate; first glume obsolete; the sec- 

 ond narrow, 3-nerved; sterile lemma 

 as long as the fruit, 5- to 7-nerved; 

 fruit 2.5 to 2.8 mm. long, dark brown. 

 % — Open sandy woods. Known 

 only from Chinsegut Hill Sanctuary, 

 Brooksville, Fla. 



Digitaria pentzii Stent. Culms densely 

 tufted, erect, stoloniferous, with conspicu- 

 ously hairy sheaths; racemes few to several, 

 ascending to spreading, approximate on a 

 short axis; spikelets about 3 mm. long, vil- 

 lous, the first glume well developed. % 

 — Introduced from South Africa. On trial as 

 a pasture grass in the Southern States. 



Digitaria decumbens Stent. Similar to 

 D. pentzii, extensively stoloniferous or 

 creeping, the culms less densely tufted and 

 more leafy; sheaths nearly glabrous; ra- 

 cemes spreading at maturity; spikelets 2.7 

 to 3 mm. long, glabrous or sparingly silky 

 on the internerves. % — Introduced from 

 South Africa, and grown as a pasture grass 

 in Florida and southern California. This and 

 the preceding are not known to set seed and 

 are planted by cuttings. 



Figure 842. — Digitaria subcalva. Plant, X 1; spikelet 

 and floret, X 10. (Type.) 



Figure 843. — Digitaria albicoma. Spikelet and floret, 

 X 10. (Type.) 



Digitaria swazilandensis Stent. Culms 

 tufted, compressed, leafy, 25 to 50 cm. tall, 

 erect to spreading, and with slender wiry 

 stolons, hairy at the nodes; blades flat, 

 rather soft; racemes 2 or 3, digitate, pale, 5 

 to 8 cm. long; spikelets 2.3 mm. long; first 

 glume minute, the second half as long as the 

 spikelet; sterile lemma strongly nerved, ob- 

 scurely pilose on the margin; fruit drab at 

 maturity. % — Introduced from South 

 Africa. Grown at experiment stations, Tif- 

 ton, Ga., and Gainesville, Fla. 



