500 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
STOLONIFERA. 
Spikelets hispid and with 2 crateriform glands on the sterile lem- 
ma; second glume and sterile lemma not boat-shaped. 
Spikelets not over 2 mm. long; blades not over 4 cm. long.. 61. P. pulchellum. 
Spikelets 3.6 mm. long; blades 4 to 10 cm. long......-..... 62. P. biglandulare. 
Spikelets glabrous, glandless; second glumefand sterile lemma ie 
boat-shaped. 
Blades not over 5 cm., usually 2 or 3 cm., long; second glume 
rather blunt and shorter than the sterile lemma. . . -- oo: Ee stoloniferum. 
Blades 5 to 11 cm. long; second glume acute, nearly equaling 
the sterile Venama hres eee cee ce ae ee 60. P. frondescens. 
59. Panicum stoloniferum Poir. 
Panicum stoloniferum Poir. in Lam. Encycl. Suppl. 4: 274. 1816; Contr. U. S. Nat. 
Herb. 15: 121. 1910. 
DISTRIBUTION. 
Moist shady places, Guatemala to Brazil. The type specimen from Cayenne. 
GUATEMALA: Puerto Barrios, Pittier 
364. 
Panama: Frijoles, Amer. Gr. Nat. 
Herb. 62. 
Winpwarp IsLANDSs: Martinique, 
Duss 1291 (K. U. Herb.). 
TRINIDAD: St. Anns Valley, Bot. Gard. 
Herb. 2293. Aqua Santa Arima, 
Broadway 2370. Without iocal- 
Fic. 81.—Distribution of P. stoloniferum. ity, Crueger 79. 
60. Panicum frondescens Meyer. 
Panicum frondescens Meyer, Prim. F1. Esseq. 56. 1818; Contr. U. 8. Nat. Herb. 15: 
NALS NNO, 
Hymenachne frondescens Fourn. Mex. P). 2: 36. 1886. Based-on Panicum frondescens 
Meyer. 
A specimen in the Berlin Herbarium, Seler 5024, without locality other than Mexico 
and Central America, is exceptionally lax and is peculiar in having occasional spike- 
lets with glands on the sterilé lemma as in P. pulchellum and P. biglandulare. In 
most of the spikelets there are afew hairs along the margin of the sterilelemma. Fur- 
ther collections may show this to be a distinct species. In Pittier 6328, cited below, 
a few spikelets bear glands, but all are glabrous. 
DISTRIBUTION. 
Moist woods, Mexico to Brazil. The type specimen from British Guiana. 
Veracruz: Papantla, Liebmann 
405. 
Tapasco: Sebasti4n, Rovirosa 
497. 
GuATEMALA: Dept. Petén, Walker 
1138. 
Costa Rica: Harienda de Zent, 
Tonduz 259. 
Panama: Trinidad Basin, Pittier _ 
4027. Fic, 82.—Distribution of P. frondescens. 
