MANUAL OF THE GRASSES OF THE WEST INDIES 257 
PANICUM MILIACEUM L., Sp. Pl. 58. 1753. Hog millet, broom- 
corn millet, introduced from the Old World and escaped from culti- 
vation in the United States, has been found in Puerto Rico (Steven- 
son 3052) and St. Croix (Benzon). 
15. Panicum cayennense Lam., Tabl. Encycl. 1: 173. 1791. Cay- 
enne. 
Annual; culms erect, often much branched at base, 20 to 50 cm tall; 
sheaths and blades pilose, the latter 4 to 10 mm wide; panicles ter- 
minal and axillary, open, 8 to 20 cm long; spikelets a little more than 
2 mm long, obovoid, turgid, strongly 
nerved; first glume acute, half as long as 
the spikelet (fig. 210). 
Open ground and pine woods, West 
Indies and Honduras to Brazil. 
Cusa: Herradura, Britton, Earle, and 
Gager 6520; Tracy 9073. Pinar del Rio, 
Wright 3865. Sierra de Cabra, Britton 
and Gager 7275. Laguna Jovero, Shafer 
10910. Sumidero, Léon and Shafer 
13717, 13719. Bayate, Ekman 10028. 
Isla de Pinos, Curtiss 267; Taylor 34; ae 
Palmer and Riley 1086; Britton, Wilson, fisnsetspikelet, sud Horet, 46 (typo” 
and Selby 14455. 
JAMAICA: Hallis Savanna, Harris 12226. 
Dominican ReEpusiic: Lagunas de Cenobi, Valeur 7. Bonao, 
Ekman H 11490. Cuenca, Ekman H 13306. El Valle, Ekman H 
15694. 
16. Panicum diffusum Swartz, Prodr. Veg. Ind. Occ. 23. 1788. 
Jamaica or Hispaniola. 
Perennial; culms densely tufted, spreading or ascending from a 
decumbent base, 25 to 50 cm tall; sheaths glabrous or the lower some- 
FIGURE 210.—Panicum ¢@. ennense. FIGURE 211.—Panicum diffusum. 
Two views of spikelet, and floret, Two views of spikelet, and floret, 
X 10 (type). X 10 (type). 
times sparsely pubescent; blades 5 to 20 cm long, 1 to 3 mm wide, 
flat or drying subinvolute, sparsely pilose on the upper surface; 
panicles 5 to 10 cm long, the few branches stiffly spreading at maturity, 
bearing a few short-pediceled spikelets toward the ends; spikelets 
about 2.3 mm long, somewhat acuminate, glabrous; first olume 
acute, about half as long as the spikelet (fig. O11). 
Banks, cliffs, and savannas, West Indies. 
Bauamas: New Providence, Britton and Brace 424. 
