HITCHCOCK AND CHASE—NORTH AMERICAN PANICUM. 121 
64. Panicum stoloniferum Poir. 
Panicum stoloniferum Poir. in Lam. Encycl. Suppl. 4: 274. 1816. ‘Cette plante 
créit 4 Vile de Cayenne.’’ The type is in the Cosson Herbarium. 
Panicum ctenodes Trin. Gram. Icon, 2: pl. 171. 1829. Trinius cites no specimen 
nor particular locality, but states that the figure is ‘‘ad specimen Brasiliense.’’ There 
is apparently no specimen in the Trinius Herbarium bearing this name, but in the 
Berlin Herbarium is a specimen from Trinius which is probably a part of the type, 
and which bears the name in Trinius’s handwriting. It was collected in Brazil by 
Beyrich. ° 
Panicum leprieurii Steud. Syn. Pl. Glum. 1: 65. 1854. Two specimens are cited, 
*P. stoloniferum //ochst. Urbr. Kappler nr. 1500. Surinam et Leprieur in Cayvenne.”’ 
On account of the specific name Leprieur’s specimen is taken as the 
type. This is in the Steudel Herbarium at Paris. It is a some- 
what undersized specimen labeled, ‘‘Cayenne, Leprieur 1835.” 
DESCRIPTION. 
Plants creeping, freely branching; culms 10 to 50 cm. long, with 
two opposite lines of minute crisp pubescence, rarely pubescent all 
over or glabrate, the nodes pubescent or glabrous; sheaths shorter 
than the internodes or overlapping on the branches, ciliate, other- 
Fig. 114.—P.stoloni- wise glabrate, or crisp-pubescent; ligules fimbriate, about 0.2 mm, 
Moe epecimen long; blades 1 to 5cm. long, 3 to 15 mm. wide, the margins undu- 
late, glabrous or sparsely pilose on the upper surface, minutely soft- 
pubescent beneath; panicles 1 to 5 cm. long, about one-third as wide, racemes 5 to 10 
mim. long, ascending or spreading, the main axis more or less pubescent; spikelets 
2.3 to 2.6 mm. long, about 0.6 mm, wide and 1 mm. thick, glabrous; first glume about 
one-third the length of the spikelet, 3-nerved, blunt; second glume blunt, shorter than 
the acute sterile lemma, both somewhat boat-shaped, 5-nerved, the sterile palea about 
half as long as its lemma; fruit 1.3 mm. long, 0.5 mm, wide, acute. 
DISTRIBUTION. 
Woods and low grounds, Guatemala to Brazil and Ecuador. 
GUATEMALA: Puerto Barrios, Pitlier 364. 
Trinipap: Broadway 2370; Crueger 79, Bot. Gard. Herb, 2293. 
British Guiana: Jenman 4081. 
DutcH Guiana: ‘‘Surinam”’ Hering (Acad. Phil. Herb.). 
Frencu Guiana: Sagot 667. 
Braziu: Beyrich (Trinius Herb.). 
Ecuapor: Balao, Eggers 14149. 
65. Panicum frondescens Meyer. 
Panicum frondescens Meyer, Prim. Fl. Esseq. 56. 1818. ‘‘In graminosis umbrosis 
insulae Arouabisch”’ [British Guiana]. We have not examined the type, which is at 
Géttingen, but we have seen in the Trinius Herbarium a portion of it which was sent 
by Meyer. 
Panicum olyraefolium Raddi, Agrost. Bras. 43. pl. 1. f. 6. 1823. Raddi states@ that 
this occurs ‘‘in sepibus prope fossas udas in viciniis Aio-Janeiro.”’ We have not seen 
the type of this, but the description and figure agree with P. frondescens. 
a Op. cit. 44 under P. donacifolium. 
