THE GRASSES OF BRITISH HONDURAS AND THE PETEN. GUATEMALA 159

 26. DIGITARIA Heist.
 Rachis with scattered long spreading hairs; first glume obsolete or
 nearly so -...-- ......-- ...... 1. D. horizontalis
 Rachis without long hairs; first glume well developed 2. D. sanguinalis

 1. Digitaria horizontalis Willd. Enum. Pl. 92. 1809.
 Annual; culms slender, branching, decumbent at the base and rooting at
 the lower nodes; leaves pilose; racemes subdigitate, few to several, slender,
 the rachis with a few long, spreading, delicate hairs, these sometimes nearly
 wanting; spikelets about 2 mm. long, the first glume obsolete. Waste places
 throughout tropical regions.
 BRIISH HONDURAS. Belize District: Honey Camp, Lundell 361, 598.
 Manatee Lagoon, Peck 44. Gracie Rock, Gentle 1620, 1628. Stann Creek
 District: Mullin's River, Smart 69. New Town, Schipp 899.
 GUATEMALA. Pet6n: El Paso, Lundell 1468.

2. Digiaria sanguinalis (L.) Scop. Fl. Carn. ed. 2. 1: 52. 1772.
 Resembling D. horizontalis; racemes digitate, fewer, and stouter, the
rachis without hairs; spikelets about 3 mm. long, the first glume minute but
well developed. Open ground and waste places throughout the tropics and
warmer temperate regions.
 BRITISH HONDURAS. Belize District: Belize, Lundell 1879.
 GUATEMALA. Pet6n: El Paso, Lundell 1534.

 27. STENOTAPHRUM Trin.
1. Stenotaphrum secundatum (Wall.) Kuntze, Rev. Geu. P1. 2: 794. 1891.
 Perennial, stoloniferous, widely creeping; culms compressed; sheaths
keeled; blades short, flat, obtuse; racemes flat, terminal and axillary, 5 to
15 cm. long; spikelets in pairs, the lower sessile, the upper pedicellate, 4 to
6 mm. long; first glume small; second glume and sterile lemma equal, the
sterile lemma usually with a palea or staminate flower. Southern United
States and the West Indies to Argentina.
 BRITISH HONDURAS. Corozal District: Pachacan Road, Lundell 4993.
Stann Creek District: Stann Creek, Schipp 501.

 28. THRASYA H.B.K.
1. Thrasya campylostachya (Hack.) Chase, Proc. Biol. Soc. Washington 24: 115. 1911.
 Perennial; culms slender, flattened, straggling, often more than 1 m. long,
glabrous or pubescent below the more or less bearded nodes; blades flat,
6 to 20 cm. long, 4 to 10 mm. wide, glabrous to softly pubescent, the margins
sometimes hispid; racemes solitary, terminal and axillary on slender long
exserted peduncles; racemes arcuate, 4 to 8 cm. long, the rachis winged;
spikelets paired, placed back to back, 2.5 to 3 mm. long, glabrous; first glume
minute. Savannas, grassy hills and pine woods, Guatemala to Bolivia.
 BRITISH HONDURAS. Belize District: Manatee Lagoon, Peck 70. El Cayo
District: Mountain Pine Ridge. Bartlett 11584, 11825, 11861, 11928.