352 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
nally described. In the United States this is called “yellow foxtail” or 
“pigeon grass.” 
12. Chaetochloa magna (Griseb.) Scribn, U. S. Dept. Agr. Div. Agrost. Bull. 4: 
39. 1897, 
Setaria magna Griseb. Fl. Brit. W. Ind. 554. 1864. 
A robust annual, 2 meters or more tall, the succulent culms as much as 1 cm. 
thick, the blades commonly 50 cm. long, 1.5 to 2.5 em. wide, the thick dense 
bristly spike 20 to 30 em. long, tapering to both ends, the second glume 
nearly equaling the smooth fruit. 
Swamps and wet soil, southeastern United States, West Indies, and Panama, 
Originally described from Jamaica. 
Bermuda, Jamaica (Black River), Porto Rico (Laguna del Tortuguero), 
and Guadeloupe. 
13. Chaetochloa viridis (L.) Scribn. U. 8. Dept. Agr. Div. Agrost. Bull. 4: 39. 
1897. GREEN FOXTAIL. 
Panicum viride L. Syst. Nat. ed. 10. 2: 870. 1759. 
Setaria viridis Beauv. Ess. Agrost. 51, 178, 1812. 
Annual, branching from the base, commonly not more than 50 em. tall; spikes 
3 to 10 cm. long. 
A weed in waste and cultivated ground. Common in the United States, in- 
troduced from Europe, whence originally described. Found in Bermuda. Said 
by Grisebach* to be naturalized in Jamaica. 
CHAETOCHLOA ITALICA (L.) Scribn. (Setaria italica Beauv.), the common 
millet, is said by Grisebach’ to be naturalized in Jamaica. In the herbarium 
of the New York Botanical Garden there is a specimen from Martinique (Duss 
1315). 
14. Chaetochloa verticillata (L.) Scribn. U. S. Dept, Agr. Div. Agrost. Bull. 
4: 39. 1897. 
Panicum verticillatum L. Sp. Pl. ed. 2. 2: 82. 1762. 
Setaria verticillata Beauv. Ess. Agrost. 51. 1812. 
Culms slender, compressed, geniculate and branching below; blades thin, 
lanceolate-linear ; spikes short, green or purplish, the slender bristles retrorsely 
barbulate. 
A weed in fields and waste places, temperate and warmer regions of both 
hemispheres, introduced in America. Called in Cuba “ pega-pega ” and “ amor 
seco.” Originally described from southern Europe and the Orient. Found in 
Bermuda, Cuba (Habana), and Martinique. 
15. Chaetochloa tenacissima (Schrad.). ‘ 
Setaria tenacissima Schrad. ; Schult. Mant. 2: 279. 1824. 
Panicum tenacissimum Nees, Agrost. Bras. 288. 1829. 
Culms slender but strong, 1 meter or more tall, leaning or clambering, the 
long narrow blades very seabrous, the spikes 10 to 15 cm. long, with long 
slender divaricate bristles and small spikelets nearly black at maturity. 
Brushy hillsides, Guatemala to Brazil, whence originally described; also in 
Porto Rico (Utuado, Sintenis 6498), and Trinidad (Port of Spain, Hitchcock 
10002). 
16. Chaetochloa scandens (Schrad.) Scribn. & Merr. U. S. Dept. Agr. Div. 
Agrost. Bull. 21: 17. 1900, 
Setaria scendens Schrad.; Schult. Mant. 2: 279. 1824. 
* FL Brit. W. Ind, 554. 1864. 
