514 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
DISTRIBUTION. 
Open moist woods and savannas, Florida and the Greater Antilles. The type 
specimen from Florida. 
Cusa: Sierra Nipe near Woodfred, 
Shafer 3083. Herradura, Hitch- 
cock 115. Isle of Pines, Palmer 
& Riley 990. Without locality, 
Wright 3875 in part. 
Jamaica: Hills back of Barican, 
Hitchcock 9561. Bull Head 
Mountain, Hitchcock 9550. 
Porto Rico: Aguada, Sintenis 
Fig. 105.—Distribution of P. polycaulon. 5724. Monte Mesa, Chase 6276. 
Trujillo Alto, Chase 6767. Campo Alegre, Chase 6621. 
80. Panicum strigosum Muhl. 
Panicum strigosum Muhl. in Ell. Bot. S. C. & Ga. 1: 126. 1816; Contr. U. 8. Nat. 
Herb. 15: 164. 1910. 
DISTRIBUTION. 
Sandy woods and open moist ground, southeastern United States to Colombia and 
in the Greater Antilles. Type specimen from South Carolina or Georgia. 
VERACRUZ: Minatitlan, Smith 555. 
GUATEMALA: Road from Gualan to 
Copan, Pittier 1800. Secan- 
quim, Pittier 257. 
Costa Rica: Between De Can- 
delaria and San Cristobal, 
Jiménez 459. 
Cusa: El Guama, Palmer & Riley 
213. Without locality, Wright 
3875 in part. Fig. 106.—Distribution of P. strigosum. 
Jamaica: Bull Head Mountain, Hitchcock 9551. 
Santo Domineo: Without locality, Eggers 2045 (K. U. Herb.). 
CoLomBia: Santa Marta, Smith 163. 
ANGUSTIFOLIA. 
Nodes bearded; plants grayish-villous; autumnal blades flat, 
rather soft....-....---.--------------------- ee eee 82. P. chrysopsidifolium. 
Nodes not bearded; plants villous only at base, or nearly 
glabrous; autumnal blades involute. 
Spikelets 3 to 3.5 mm. long, pointed.................. 83. P. fusiforme. 
Spikelets less than 3 mm. long, not pointed or obscurely so. 
Plants glabrous or nearly so; autumnal culms erect. 
Spikelets subsecund along the suberect panicle 
branches. .......................----- 86. P. neuranthum. 
Spikelets not subsecund; panicle looseand open. 85. P. ovinum. 
Plants pubescent, at least on the lower half. 
Spikelets about 2.4 mm., rarely only 2.1mm., 
long; vernal blades 7: to 12 cm. long; 
autumnal blades not falcate............ 84. P. arenicoloides. 
Spikelets not over 2 mm. long; vernal blades 4 
to 6 cm. long; autumnal blades much 
crowded, falcate.................----- 81. P. aciculare. 
