TLITCHCOCK AND CHASE—TROPICAL NORTH AMERICAN PANICUM. 495 
Grisebach’s variety was based upon Crueger 84 from Trinidad. This has strongly 
appressed-hispid nodes and sparsely pilose panicle branches. Hitchcock’s no. 8387, 
the type, has only moderately pubescent nodes and no hairs on the branches of the 
panicle. Hitchcock’s no. 7942 has glabrous nodes, evidently, though sparsely, pilose 
blades, and strongly pilose panicle branches. The three collections appear, however, 
to belong to the same species, Frijoles, the type locality, is now covered by the water 
of Gatun Lake. 
DISTRIBUTION, 
Swamps, Panama to Trinidad. 
Panama: Frijoles, Canal Zone, 
Hitchcock 8387. Between 
Mindi and Coldén, Canal Zone, 
Hitchcock 7942. 
TrintpaD: Without locality, Crue- 
ger 84. Fia. 71.—Distribution of P. milleflorum. 
52. Panicum pilosum Swartz. 
Panicum pilosum Swartz, Prodr. Veg. Ind. Occ. 22. 1788; Contr. U. 8. Nat. Herb. 
15: 113. 1910. 
DISTRIBUTION. 
Moist ground, ditches, and swamps, Mexico and the West Indies to Paraguay. The 
type specimen from Jamaica. 
Veracruz: Cérdoba, Amer. Gr. Nat. Herb. 60. Mirador, Liebmann 411. 
Tasasco: San Juan Bautista, Rovirosa 599. 
Cutapas: Ocuilapa, Nelson 3056. 
British Honpuras: Manatee Lagoon, Peck 28 (Gray Herb.). 
GuaTEMALA: Finca Trece Aguas, Goll 11. Cubilquitz, Tiirckheim 8797. Puerto 
Barrios, Hitchcock 9159. Los An- 
des, Kellerman 5119. 
Honpuras: San Pedro Sula, Thieme 
5587 in part. Bonacco Island, 
Gaumer in 1887. 
Nicaragua: Wright, U. 8S. Pacific 
Expl. Exped. 1853-56. 
Costa Rica: Rio Hondo, Cook & 
Doyle 499. Talamanca, Tonduz 
9495. Puerto Viejo, Biolley 7463. 
Fig. 72.—Distribution of P. pilosum. Puntarenas, Hitchcock 8564. 
Panama: Chagres, Fendler 368. Chepo, Pittier 4536. Puerto Obaldfa, Pittier 
4371. Toro Point, Hitchcock 8044. Taboga Island, Hitchcock 8083. Balboa, 
IMitcheock 8016. Gatun, Hitchcock 8029. Cafia, Williams 776. David, Hitch- 
cock 8347. Culebra, Hitchcock 7897, 9208, Pittier 2082. Between Bohfo and 
Frijoles, Hitchcock 8390. Between Pedro Miguel and Corozal, Hitchcock 7992. 
Chorrera, Hitchcock 8139. Porto Bello, Pittier 2481. 
Cusa: Dayaniguas, Wright 3451 in part. Sancti Spiritus, Zeén 908. Herradura, 
Van Hermann 763, Tracy 9063. Isle of Pines, Curtiss 305, Taylor 36. Sumi- 
dero, Shafer 13505, 13533. Buenaventura, Wilson 9444. Banao Hills, Leén 
3982. Near Marianao, Leén 1977. Without locality, Péppig 1834. 
