382 NasH: ENUMERATION OF THE 
the writer, and that it is what is commonly known as Panicum 
fasciculatum Sw. 
10. PANICUM PROSTRATUM Lam. Ill. 1: 171. 1791. 
Cane field between Ponce and Coamo, Heller 497. 
11. PANICUM MOLLE Sw. Prod. 22. 1788. 
Along railroad, Bayamon, Heller 100; Yauco, Heller 6293. 
12. PANICUM LAxuM Sw. Prod. 23. 1788. 
In fields, common. Between Aibonito and Cayey, /Heller 
522; Santurce, Heller 983; Catafio, Heller 1378. 
13. PANICUM LATIFOLIUM L. Sp. Pl. 58. 1753. 
In woods and thickets, common. Maricao, Sintenis 215; 
- Mayaguez, Heller 4375; Arecibo, Heller 343; Luquillo Mts., 
Wilson 350; Coamo, Goll 699; Bayamon, Goll 227. 
14. Panicum Sintenisii sp. nov. 
A tufted glabrous perennial with long narrow flat leaf-blades 
and a slender panicle. Stem 4-6 dm. tall, slender, producing 
panicle-bearing branches from the upper sheaths: leaves about 4; 
sheaths several times shorter than the internodes and the blades ; 
ligule a ring of short hairs ; blades narrow and elongated, flat toward 
the apex, but folded below for a considerable distance, at least when 
dry, giving the blade a long-stalked appearance, 1-2 dm. long 
and about 2 mm. wide at the flat portion, the lower folded portion 
about one quarter this width, long-acuminate: panicle very slender, 
4—7 cm. long, its branches appressed, 1-2 cm. long, each running out 
into a bristle-like termination as do its divisions: spikelets about 
2 mm. long, acute, as are also all the scales, the first scale 1-nerved, 
about one half as long as the spikelet, the second one 3-nerved, 
about two thirds as long as the spikelet, the third scale 5-nerved 
and equalling the fourth scale or a little shorter than it, the fourth 
scale very acute. 
In woods, Guanica, Sintenis 3463. 
Related to P. Chapmani Vasey, but that has stouter spikelets 
and all the scales with more nerves. 
15. PANICUM FLAVESCENS Sw. Prod. 23. 1788. 
Near Mayaguez, Heller 4373 and 4488. 
