MANUAL OF THE GRASSES OF THE WEST INDIES 329 
scabrous on the margins, sometimes on the upper surface; panicles 
10 to 20 cm long, more or less nodding; racemes mostly ascending or 
appressed, the lower somewhat distant, the upper approximate; 
spikelets crowded, excluding the awns about 3 mm long, hispid on 
the nerves, hispidulous on the intervenes; sterile lemma with an awn 
1 to 10 mm long (fig. 301). 
Marshes and wet places, often in the water, at Jow and medium 
altitudes, Mexico and the West Indies to Argentina. 
Bermupa: Collins 343. 
Cusa: Habana, Léon 747, 2588, 2785, 7646, 11467; Ekman 241. 
Inebmann 378; Rugel 889. 
Yumuri Mountains, Rugel 884. 
Caibarién, Ekman 16308. 
Gamboa, Ekman 14977. 
Without locality, Wright in 
1865, Ekman 13130. 
JAMAICA: Grosmond Marsh, 
Harris 11751. Meylersfield, 
Harris 11824. Savanna-la-Mar, 
Ehtcheock 9862. 
Haiti: Miragoane, Hyerdam 
493; Hkman H 6523. Dessa- 
lines, Hkman H 3518, 8533. 
Port-Margot, Ekman H 2681. 
Dominican Repub tic: Santo 
Domingo, Ekman H 12254. 
Jarabaco, Ekman H 14135. 
Purrto Rico: Loiza Road, 
Britton 9235. Humacao, Sin- 
tenis 1889. Canovanas, Steven- 
son 53888. San Juan, Chase 6352, 
6396. Lares, Chase 6596. Rio 
Piedras, Stevenson and Rose 
6428. Trujillo Alto, Britton 
and Matz 7049. Vega Baja, 
Britton 7960. Without locality, 
Eggers 685. 
Lrrwarp IsLANDs: 
loupe, Duss 3161. 
Trinipap: Oropuche Lagoon, Britton, Hazen, and Freeman 1143. 
Without locality, Bot. Gard. Herb. 1678. 
6. Echinochloa crusgalli (L.) Beauv., Ess. Agrost. 53, 161,169. 1812. 
BARNYARD GRASS. 
Pameum crusgalli L., Sp. Pl. 56. 1753. Europe and Virginia. 
Resembling F. crus-pavonis; differing in the stiffer panicle, erect or 
nodding only when large and heavy, the somewhat larger spikelets, 
and especially in the strongly hispid or papillose-hispid nerves of the 
second glume and sterile lemma (fig. 302). 
The species is common in the United States and Mexico but rare 
in the West Indies. It is not always easy to distinguish it from 
E. crus-pavonis, especially in small or depauperate specimens, for 
which reason the latter has often been considered to be a variety of 
the former. The awn is variable in length in EF. crusgalli, whereas in 
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FIGURE 301.—Echinochloa crus-pavonis, K 1 
Guade- (Sintenis 1889). 
