HITCHCOCK GRASSES OF CUBA. 229 



There are four specimens of this in the Grisebach Herbarium: No. 750 labeled 

 "Prope villain Monte Verde dictam. Cuba orientali;" another numbered 750 from 

 eastern Cuba, 1856-57; a Wright specimen without number or locality collected in 

 1860-64; and a specimen with proliferous spikelets, numbered 887, "Cuba occ. Wr. 

 1863." This species not infrequently occurs with proliferous spikelets, as in Palmer 

 & Riley 130 cited above. The spikelets then consist of many sterile lemmas and 

 the plants appear as if belonging to the tribe Festuceae. 



4. Ichnanthus wrightii sp. nov. 



Culms slender, prostrate-spreading, more or less rooting at the nodes, glabrous 

 or sparsely villous, 20 to 30 cm. long; sheaths mostly less than half the length of 

 the internodes, striate-nerved, villous on the margins, otherwise glabrous or nearly 

 bo; blades ovate-lanceolate, striate-nerved, faintly 3 to 5-ribbed, glabrous, 12 to 

 30 mm. long, 2 to 8 mm. wide on the sterile shoots, somewhat larger and thicker 

 on the ascending flowering culms, all abruptly or cordately narrowed into a slender 

 stalk 1 to 5 mm. long on the fertile culms, or as much as 15 mm. long on the sterile 

 shoots; panicles 4 to 8 cm. long, consisting of a few spike-like racemes, 0.5 to 2 cm. 

 long; spikelets 3 mm. long, glabrous, the pedicel minutely pubescent; lower glume 

 about half the length of the spikelet, 3-nerved; second glume and sterile lemma 

 equal, acuminate, strongly 5-nerved; fertile lemma scarcely 2 mm. long, the edges 

 meeting and covering the palea, except at the very base, the outer margin of the 

 base of the lemma bearing a scar at each side, but no wings. 



Wright's 3880. U. S. National Herbarium no. 559959 of this collection is the type. 

 The specimen in the Sauvalle Herbarium is labeled, "Under overhanging rocks 

 (damp) and around base of palms beside the Rio Seco in Arroyo Honda, Pinar del 

 Rio, Dec." The Grisebach specimen consists of a single spikelet in a packet, labeled 

 "Echinolaena Sp. " no. 760. In the Kew Herbarium there are four specimens num- 

 bered 2, 23, 244, 760. Nos. 760 and 3880 are also in the Gray Herbarium. This 

 species is allied to I. mayarensis. 



34. TRICHOLAENA Schrad. in Schult. Mant. 2: 163. 1824. 



1. Tricholaena rosea Nees, Cat. Sem. Hort. Vratisl. 1835. 

 Britton, Britton & Shafer 533. 

 Sparingly introduced. 



35. OPLISMENUS Beauv. Fl. Owar. 2: 14. /. 58. 1804. 



1. Oplismenus hirtellus (L.) Roem. & Schult. Syst. 2: 481. 1817. 



Panicum kirtellum L. Syst. Nat. ed. 10. 2: 870. 1759. 



Panicum setarium Lam. Tabl. Encycl. 1: 170. 1791. 



Woods, Hanabana, June 1, Wright 1543; damp woods, Monte Verde, March, Wright 

 751; Santiago de las Vegas, Baker HC 5051, Hitchcock in 1906; San Antonio, Hitch- 

 cock in 1906; Guanajay, Baker HC 3461; Habana, Curtiss 593, Leon 556; Matanzas, 

 Palmer & Riley 12; Cienfuegos, Pringle 76; Combs 667 in Gray Herbarium; El 

 Guama, Palmer & Riley 146; Isle of Pines, Curtiss 268; Matanzas, Rugel 189 in Gray 

 Herbarium. In the herbarium of the New York Botanical Garden are the follow- 

 ing: Matanzas, Britton & Shafer 221; Santiago de Cuba, Taylor 422, 481. 



Wright's numbers 751 and 1543 in the Grisebach Herbarium are from eastern Cuba, 

 1859. The latter is numbered 1593 in Sauvalle's Flora Cubana. 



It is quite possible that the specimens here included may be referred to distinct 

 species. The type of Panicum setarium Lam. at Paris resembles Wright's 1543. The 

 blades are short and the clusters of spikelets globose and few-flowered. Wright 751 

 and Curtiss 268 and 593 have larger and longer blades and spikes, but some of the 

 other specimens are intermediate. 



