GRASSES OF Porto Rico 381 
Vega Baja, Underwood and Griggs 955; Santurce, Heller 9824 
and 6442. 
5. PANICUM CONSANGUINEUM Kunth, Rev. Gram. 1: 36. 18209. 
Sandy soil, Santurce, Heller 982. 
6. PANICUM PARVIFOLIUM Lam. Ill. 1: 173. 1791. 
Bayamon, Sintenis 1216. 
7. Panicum oplismenoides sp. nov. 
A smooth and glabrous prostrate leafy perennial with much 
of the habit of Oplsmenus setarius, with short broadly lanceolate 
leaf-blades and spreading panicles. Stems slender, rooting at the 
lower nodes, branching : leaves numerous; sheaths much shorter 
than the internodes and about one half as long as their blades ; 
ligule a very narrow scarious ring ; blades spreading, shorter than 
the internodes, broadly lanceolate to ovate-lanceolate, often .some- 
what undulate on the margins, 2-3 cm. long, 6-10 mm. wide: 
panicles but little exserted, broadly ovate, 3-4 cm. long, the 
branches spreading : spikelets elliptic, 1.8-2 mm. long and a little 
less than 1 mm. broad, the first scale a little more than one half 
as long as the spikelet, 5-nerved, broadly ovate, obtuse, the second 
and third about equal in length, 5-nerved, a little exceeding the 
white flowering scale, the third scale with a manifest palet nearly 
as long as itself. 
Collected on the edge of a ditch at Vega Baja, May 9, 1899, 
by Heller, no. 1316. 
Related in habit and general appearance to P. polygonotdes 
Lam., but in that the leaf-blades are smaller and with hispid 
sheaths and the spikelets globular. 
8. Panicum maximum Jacq. Ic. Pl. Rar. 4: 13. 1781-6. 
Martin Pena, Heller 377; Martin Pefia and Lecheria, Goll 31. 
g. Panicum paniculatum (L.). 
Paspalum paniculatum L. Syst. Ed. 10, 855. 1759. 
Panicum fasciculatum Sw. Prod. 22. 1788. 
In sandy and rocky soil, frequent. Rio Piedras, Heller 135 ; 
Aguadilla, Heller 4528; Sprengel; H. Wydler 311; Adjuntas 
road, near Ponce, Heller 6226 and 6302. 
It may be of interest to note here that the specimen from which 
Sloane’s figure (Hist. Jam. ~/. 72, f 2) was drawn, and on which 
Linnaeus based his Paspalum paniculatum, has been examined by 
