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 glumejand sterile lemma 
boat-shaped. 
Blades not over 5 cm., usually 2 or 3 cm., long; second glume 
rather blunt and shorter than the sterile lemma. . . .. 59. P. stoloniferum. 
Blades 5 to 11 cm. long; second glume acute, nearly equaling 
the sterile lemma.......-..-.----------------00--05 60. P. frondescens. 
59. Panicum stoloniferum Poir. 
Panicum stoloniferum Poir. in Lam. Encycl. Suppl. 4: 274. 1816; Contr. U. 8. 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 Istanps: Martinique, 
Duss 1291 (K. U. Herb.). 
Trinipap: St. Anns Valley, Bot. Gard. 
Herb. 2293. Aqua Santa Arima, 
Broadway 2370. Without local- 
FIG. 81.—Distribution of P. stoloniferum. ity, Crueger 79. 
60. Panicum frondescens Meyer. 
Panicum frondescens Meyer, Prim. Fl. Esseq. 56. 1818; Contr. U. 8. Nat. Herb. 15: 
121. 1910. 
Hymenachne frondescens Fourn. Mex. P], 2:36. 1886. Based on Panicum frondescens 
Meyer. 
A specimen in the Berlin Herbarium, Seler 5924, without locality other than Mexico 
and Central America, is exceptionally lax and is peculiar in having occasional spike- 
lets with glands on the sterile lemma as in P. pulchellum and P. biglandulare. In 
most of the spikelets there are afew hairs along the margin of the sterile lemma. Fur- 
ther collections may show this to be a distinct species. In Pititer 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: Sebastian, Rovirosa 4 
497, , 
GUATEMALA: Dept. Petén, Walker 
11388. 
Costa Rica: Hacienda de Zent, 
Tonduz 259, 
Panama: Trinidad Basin, Pittier a 
4027. Fig, 82.—Distribution of P. frondescens. 
