80 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
GuATEMALA: Escuintla, J. D. Smith 2705, 2706; Morales, Kellerman 6267; Alta 
Vera Paz, Cook & Griggs 579; Gualin, Deam 6268. 
Honpuras: Cortez, Kellerman 4725. 
Satvapor: Izalco, Pittier 1960; San Salvador, Velasco in 1906; without locality, 
Renson 293. 
Costa Rica: San José, Pittier 9050; Alajuelita, Pittier 2995, Tonduz 2995; 4 Boca 
Banana, Tonduz 9114; Zent Farm, Pittier in 1904. 
Brermupas: Brown & Britton 20. 
Banamas: Nassau, Curtiss W. 1. Pl. 124; Eleuthra, Geogr. Soc. Baltimore 338. 
Cusa’ 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, Len & Voisard 
915, Pollard, Palmer & Palmer 283; Guines, Leon 427, Iiebmann 445 in part; 
Herradura, Hitchcock 156; Guayabal, Leon 921; Marianao, Ledn 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 & Heller 377. 
DanisH West InpizEs: St. Croix, Ricksecker 200, 413; St. Thomas, Eggers in 1887, 
Millspaugh 454. 
LEEWARD IsLtAnps: Guadeloupe, Duss 3186. 
WINDWARD IsLANDS: Martinique, Duss 1288; Barbados, Dash 259; Granada, 
Broadway in 1905. 
CoLomBIA: Santa Marta, Smith 2153; Magdalena, Pittier 1617. 
VENEZUELA: Island of Margarita, Miller & Johnston 177. 
Braziu: Province of Cear4, 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. bul- 
Fig. 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 
24Some 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.”’ 
