MANUAL OF THE GRASSES OF THE WEST INDIES 163 
69. LEPTOCORYPHIUM Nees, Agrost. Bras. 83. 1829 
Spikelets lanceolate, 1-flowered with a sterile lemma below; first 
glume obsolete; second glume and sterile lemma 3- and 5-nerved, the 
latter a little longer than the former and about as long as the fruit; 
fertile lemma slightly cartilaginous-indurate, chestnut with a white 
delicate hyaline summit; palea not enclosed above, the 2 nerves 
obscurely visible. Tufted perennial with narrow blades and silky 
panicle. 
1. Leptecoryphium lanatum (H. B. K.) Nees, Agrost. Bras. 84. 1829. 
Paspalum lanaium H. B. K., Nov. Gen. et Sp. 1: 94. pl. 29. 1815. 
Mexico. 
Milium lanatum Roem. and Schuit, Syst. Veg. 2: 322. 1817. 
Anthaenantia lanata Benth., Jour. Linn. Soc. Bot. 19: 39271882 
Slender erect perennial up to 1 m tall; blades long, narrow, often 
involute; panicles oblong, loose, many-flowered, pale, the branchlets 
capillary; spikelets silky-pilose, the hairs at first appressed, at matur- 
ity spreading (fig. 104). 
Dry hills and pine barrens, southern Mexico and the West Indies 
to northern South America. 
Cusa: Herradura, Tracy 9048, 9071, 9132; Karle 682; Hitchcock 
482; Hkman in 1922 (Amer. Gr. Nat. Herb. 707). San Diego de los 
Bafios, Léon 4564. Sumidero, Léon 3465; Shafer and Léon 13609. 
Pinar del Rio, Wright 3429; Hitchcock 23268; Palmer and Riley 440. 
Sabana de Motembo, Léon 93847. Manacas, Léon 5827. San Miguel 
de los Bafios, Killip 13854. Sancti Spiritus, Léon 853. ‘“‘La Mag- 
dalena’”’ Cayamas, Baker 4555. Baragud, Hitchcock 23367. Paso 
Estancia, Shafer 1683. Bayate, Ekman 4956. Isla de Pinos, Palmer 
and Riley 972; Curtiss 393; Britton and Wilson 14178. 
Harti: St. Michel de l’Atalaye, Ekman H 3253; Sweet in 1925. 
Lamielle, Hkman H 6203. Bonao, Ekman H 5827. 
Dominican Repusiic: Guerra, Hkman H 13348. 
Puzrrto Rico: Mayaguez, Britton and Hess 2699; Chase 6272, 6810; 
Holm 192, 193. 
TRINIDAD: San Fernando, Hart 3368. O’Meara Savanna, Britton 
and Hazen 1562. 
70. TRICHACHNE Nees, Agrost. Bras. 85. 1829 
(Valota Adans., Fam. Pl. 2: 495. 1763. No generic description) 
Spikelets lanceolate, in pairs, short-pedicellate, in two rows along 
one side of a narrow rachis; first glume minute, glabrous; second 
glume and sterile lemma about as long as the fruit, 3- to 5-nerved, 
copiously silky; fertile lemma cartilaginous, lanceolate, acuminate, 
usually brown, the flat white hyaline margins broad. Perennials, the 
slender racemes erect or nearly so, aggregate along the upper part of 
the main axis, forming a white or brownish silky panicle. 
Racemes few, usually about 3; blades short, mostly not over 3 em long; plants: 
PUR OM ber tall reel lyk PMI, LOO OTR a 1. T. EaceRst. 
Racemes numerous; blades elongate; plants usually more than 50 em tall. 
Lower panicle branches in a fascicle on one side of the axis; spikelets densely 
clothed with tawny or brown silky hairs much exceeding the spikelet. 
2. T. INSULARIS. 
Lower panicle branches in a whorl; spikelets sparsely villous, the hairs shorter 
Hee ERULe ES Ie le len ee eee LTP Ree ee ee 835g Thy 
