80 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
GUATEMALA: Escuintla, J. D. Smith 2705, 2706; Morales, Kellerman 6267; Alta 
Vera Paz, Cook & Griggs 579; Gualan, Deam 6268. 
Honpuras: Cortez, Kellerman 4725. 
Satvapor: Izalco, Pitter 1960; San Salvador, Velasco in 1906; without locality, 
Renson 298. 
Costa Rica: San José, Pittier 9050; Alajuelita, Piitier 2995, Tonduz 2995;¢ Boca 
Banana, Tonduz 9114; Zent Farm, Pittier in 1904. 
Bermupas: Brown & Britton 20. 
Banamas: Nassau, Curtiss W. I. Pl. 124; Eleuthra, Geogr. Soc. Baltimore 338. 
Cupa’ Pinar del Rio, Palmer & Riley 377; El Guama, Palmer & Riley 178; San 
Diego de los Bafios Palmer & Riley 542, 545; Guanajay, Palmer & Riley 816; 
Santiago de las Vegas, [Hitchcock 157, Wilson 438; Santiago, Leén d&: Voisard 
915, Pollard, Palmer & Palmer 283; Guines, Leén 427, Liebmann 445 in part; 
Herradura, Hitchcock 156; Guayabal, Leén 921; Marianao, Leén 957. 
Jamaica: Gordon Town, Hart 797; Port Antonio, Fredholm 3319. 
Porto Rico: Cayey, Sintenis 2468; Mayaguez, Sintenis 51; El Sobrante, Eggers 
1226; Guanica, Sintensis 3366; Martin Pena, Heller d& Teller 377. 
Danisu West Inpres: St. Croix, Ricksecker 200, 418; St. Thomas, Eggers in 1887, 
Millspaugh 454. 
Leewarp Istanps: Guadeloupe, Duss 3186. 
Winpwarp IsLtanps: Martinique, Duss 1288; Barbados, Dash 259; Granada, 
Broadway in 1905. 
CoLtomsia: Santa Marta, Smith 2153; Magdalena, Pittier 1617. 
VENEZUELA: Island of Margarita, Miller & Johnston 177. 
Braz: Province of Ceara, Gardner in 1838; Rio, Glaziou 18627; without locality, 
Glaziou 16612, Riedel 53. 
40. Panicum plenum sp. nov. 
DESCRIPTION. 
Plants mostly in large clumps, 1 to 2 meters high, erect, from a stout rootstock, 
mostly glaucous; culms robust, compressed, glabrous, usually decumbent at base, 
sometimes branching at the lower nodes; sheaths 
overlapping on the short lower internodes, shorter 
than the upper, glabrous, or the lower sometimes 
pubescent toward the summit, more or less keeled; 
ligules densely ciliate, about 2 mm. long; blades 
erect or ascending, or the lower spreading, flat, 20 
to 35 cm. long, 7 to 17 mm. wide, glabrous on both 
surfaces or rarely sparsely pilose on either surface 
toward the base, the upper surface scarcely scab- 
rous; panicles 20 to 50 cm. long, about two-thirds 
as wide, the slender branches somewhat spreading, 
the general appearance much like that of P. bud- 
Fic. 69.—P. plenum. From type bosum but proportionately wider, the main axis 
specimen. nearly smooth; spikelets 3 to 3.4 mm. long, 1.2 mm. 
wide, oblong-elliptic, glabrous, rather strongly 
nerved; first glume scarcely half the length of the spikelet or less, subacute, 3-nerved; 
second glume and sterile lemma subequal, scarcely exceeding the fruit, the palea 
«Some of the Pittier collections were distributed with the name of Tonduz as col- 
lector. The numbers are in one series, some of the plants having been collected by 
Pittier, some by Tonduz, and a few by Biolley. The labels may be marked, ‘‘Herb, 
Instit. physico-geogr. nat. costaricensis,’’ or, ‘‘Plantae costaricenses exsiccatae.”’ 
