286 MISC. PUBLICATION 243, U.S. DEPT. OF AGRICULTURE 
Panicum dichotomum var. acuminatum Swartz; Griseb., Fl. Brit. W. 
Ind. 553. 1864. 
Panicum comophyllum Nash, Bull. Torrey Bot. Club 30: 380. 
1903. Puerto Rico, Heller 12. 
Vernal culms ascending from a geniculate base, densely villous 
with soft-spreading hairs, 20 to 70 cm tall, the nodes more or less 
bearded, sheaths velvety papillose-villous or the upper glabrate; 
ligule 2 to 3 mm long; blades lanceolate, slightly cordate at base, 
sharply acuminate, usually ciliate, 4 to 8 cm long, 6 to 13 mm wide, 
the upper surface more or less villous, velvety beneath; panicles 3 
to 10 em long, the axis usually villous, the branches flexuous, the 
lower sometimes reflexed; spikelets slightly less than 2 mm long 
(fig. 266). 
Sandy pine woods, moist banks, and open ground, Greater Antilles; 
Colombia. 
Cusa: Herradura, Hitchcock 140, 23436; Tracy 9078; Britton, Earle, 
and Gager 6505. Sumidero, Léon 3472; Shafer and Léon 13544, 13615. 
Rio Guao, Britton and Cowell 9673. San Sebastian, Léon and Shafer 
13719. Pinar del Rio, Palmer and Riley 447; Hitchcock 23271, 23295; 
Léon, Bailey, and Roig 14821. Vinales, Léon 14711. Guane, Léon 
6902. Cajdlbana, Léon 4833, 4841. San Diego de los Bafios, Léon 
4371, 4558. San Cristobal, Wright 3874. Isla de Pinos, Curtiss, 
307, 328; Palmer and Riley 989, 1083; Taylor 
in 1901; Britton and Wilson 14224, 14228, 
14320, 15674. 
Jamaica: Abbey Green, Hitchcock 9355 
(Amer) Gre Nai” Herb? 133)... Cimchomar 
Harris, 11315, Wi371; Aitchcock 9697-a9r22- 
Maxon and Killip 917. St. Helens Gap, 
Harris 11494; Mazon and Killip 594. 
FIGURE 266.—Panicum acumina- Claverty Cottage, Perkins 1083. Morces 
tum. Two views of spikelet, and ee : 
floret, X 10 (type). Gap, Mazon and Killip 1072a. James Hill 
Savanna, Harris 12848. Catherines Peak, 
Harris 11554; Hitchcock 9738. Barican, Hitchcock 9564. Below Sir 
Johns Peak, Harris 11597. Clyde River, Harris 11444. Monkey Hill, 
Harris 11435. Upper Clarendon, Harris 11109. Bull Head Moun- 
tain, Hitchcock 9538. Arntully, Orcutt 5181, 5744, 6776. Without 
locality, Hart 736; Hort. Bot. Jamaica 736. 
Haiti: Marmelade, Leonard 8199. Caille la Croix, Leonard 7838. 
Furcy, Leonard 4328, 4402, 4701; Ekman H 1216; Cook, Scofield, and 
Doyle 37; Buch 497, 1541. Grand-Gosier, Ekman H 6856. Pétion- 
ville, Ekman H 1216. Morne de la Selle, Christ 1850. Miu§ssion, 
Leonard 3821, 3851, 3972. 
Dominican Repusuic: La Cumbre, Ekman H 11547. San José de 
Ocoa, Ekman H 11685. 
Puerto Rico: Maricao, Britton and Cowell 4090; Chase 6249; 
Sintenis 355. San Juan, Chase 6378, 6647, 6765. Adjuntas, Chase 
6475. Sierra de Loquillo, Chase 6719. Cayey, Chase 6752. Maya- 
vuez, Holm 59b. Santurce, Heller in 1903. Lares, Sintenis 5908. 
Fajardo, Sintenis 1224. 
75. Panicum albemarlense Ashe, Jour. Elisha Mitchell Sci. Soc. 16: 
84. 1900. North Carolina. 
Vernal phase olivaceous, grayish-villous; culms slender, at first 
erect, soon geniculate, 25 to 45 cm long: ligule pilose, 1 to 2 mm long; 
