164 



CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



DISTRIBUTION. 



Moist ground and shady banks, southern Mexico to northern South America and 

 north in the Windward Islands to Guadeloupe. Called gamalote in Tobago. 

 Veracruz: Hacienda de Jovo, Liebmann 452. , Zacuapan, Purpus 2904, 2907. Mira- 

 dor, Liebmann 455, 456; Mohr in 1857. Cordoba, Hitchcock 6395; Kerbcr 110; 

 Ross 551; Bourgeau 1457. Orizaba, Hitchcock 6380; Botteri 105, 1986. 

 Oaxaca: Tonaguia, Liebmann 454. Comaltepeque, Galeotti 5858. 

 Tabasco: Tamulte, Rovirosa 616. 

 Chiapas: Ocuilapa, Nelson 3059. 

 Guatemala: Puerto Barrios, Hitchcock 9155. Sepacuitd, Collins & Goll 09. Oubil- 



quitz, Turckheim 8030. 

 Honduras: San Pedro Sula, Thieme 5589. 



Costa Rica: Alajuelita, 

 Jimenez 402. Turrialba, 

 Tonduz 9009. Rio Tuis, 

 Tonduz 11394. Limon, 

 Hitchcock 8412. Alajuela, 

 Jimenez 133. Rio Segundo, 

 Jimenez 410. Puntarenas, 

 Pittier 470. Puerto Viejo, 

 Biolley 7468. 



Panama: Culebra, Hitch- 

 cock 7935, 8122. Bohio, 

 Hitchcock 8391. Gamboa, 

 Pittier 6800. 



Leeward Islands: Gua- 

 deloupe, D uss 3185. Domi- 

 nica, Jones 3. 



Windward Islands: 



Martinique, Duss 4656. 



Grenada, Broadway in 1905. 



Tobago: Hitchcock 10276, 



Eggers 5682. 



Colombia: Santa Marta, 

 Smtift 115. 



Venezuela: La Guaira, 

 Rose 21696. C a r a y a c a , 

 John 308, 330. 



Fig. 39. — Chaetochloa sulcata. From Collins & Goll 09, Guatemala. 

 CHAETOCHLOA proper. 



Annual or perennial, low or moderately tall grasses with narrow blades (usually not 

 over 2 cm. wide). Bristles usually below all the spikelets. Spikelets clustered on 

 the short branches of the narrow or spikelike, rarely open panicle, the lower branches 

 appressed or ascending, rarely more than 1 to 2 cm. long (the lower branches spreading 

 and as much as 5 cm. long in some specimens of C. setosa). Fertile lemma obtuse or 

 acutish, sometimes very turgid, cross-wrinkled or rugose, rarely smooth. Warm and 

 temperate regions of both hemispheres. 



Several annual species have been introduced from Europe and are now common 

 weeds in fields and waste places through the cooler parts of the United States, and 

 one (C. verticillata) extends well into the tropics. The perennial C. geniculata. a 

 native of tropical America, is also a widely distributed weed in the same area and 

 extends well into the southern states. 



