niTCHCOCK 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 

 Mindl and Colon, Canal Zone, 

 Hitchcoch 7942. 



Trinidad: Without locality, Crue- 

 ger 84. 



Fig. 71. — Distribution of P. milleflorum. 



52. Panicuin pilosum Swartz. 



Panicum pilosum Swartz, Prodr. Veg. Ind. Occ. 22. 1788; Contr. IT. S. Nat. Herb. 

 15: 113. 1910. 



DISTRIBUTION. 



The 



Puerto 

 Los An- 



Moist ground, ditches, and swamps, Mexico and the West Indies to Paraguay 

 type specimen from Jamaica. 



Veracruz: Cordoba, Amer. Gr. Nat. Herb. 60. Mirador, Liebmann 411. 

 Tabasco: San Juan Bautista, Rovirosa 599. 

 Chiapas: Ocuilapa, Nelson o05G. 



British Honduras: Manatee Lagoon, Peck 28 (Gray Herb.). 

 Guatemala: Finca Trece Aguas, Goll 11. Cubilquitz, Turchheim 8797. 



Barrios, Hitchcock 9159. 

 des, Kellerman 5119. 

 Honduras: San Pedro Sula, Thicme 

 5587 in part. Bonacco Island, 

 Gaumer in 1887. 

 Nicaragua: Wright, U. S. Pacific 



Expl. Exped. 1853-56. 

 Costa Rica: Rio Hondo, Cook & 

 Doyle 499. Talamanca, Tonduz 

 9495. Puerto Viejo,J5ioZZe2/ 7463. 

 FIG. 72.-Distribution of P. pilosum. ' Puntarenas, Hitchcock 8564. 



Panama: Chagres, Fendler 368. Chepo, Pittier 4536. Puerto Obaldia, Pittier 

 4371. Toro Point, Hitchcock 8044. Taboga Island, Hitchcock 8083. Balboa, 

 Hitchcock 8016. Gatun, Hitchcock 8029. Cana, Williams 776. David, Hitch- 

 cock 8347. Culebra, Hitchcock 7897, 9208, Pittier 2082. Between Bohio and 

 Frijoles, Hitchcock 8390. Between Pedro Miguel and Corozal, Hitchcock 7992. 

 Chorrera, Hitchcock 8139. Porto Bello, Pittier 2481. 



Cuba: Dayaniguas, Wright 3451 in part. Sancti Spiritus, Le6n 908. Herradura, 

 Van Hermann 763, Tracy 9063. Isle of Pines, Curtiss 305, Taylor 36. Sumi- 

 dero, Shafer 13505, 13533. Buenaventura, Wilson 9444. Banao Hills, Ledn 

 3982. Near Marianao, Le6n 1977. Without locality, Poppig 1834. 



