HITCHCOCK AND CHASE——TROPICAL NORTH AMERICAN PANICUM. 477 
20. Panicum capillare L. 
Panicum capillare L. Sp. P1. 58. 1753; 
Contr. U.S. Nat. Herb. 15: 60. 1910. 
DISTRIBUTION. 
Open ground, common in eastern 
United States, introduced in Ber- 
muda. The type specimen from Vir- 
ginia. 
Bermupa: North Shore Road, = 
Brown & Britton 21. Fic. 33.—Distribution of P. capillare. 
21. Panicum hirticaule Presl. 
. Panicum hirticaule Presl, Rel. Haenk. 1: 308. 1830; Contr. U. S. Nat. Herb. 15: 64. 
1910. 
DISTRIBUTION. 
Rocky or sandy soil, southwestern United States and south through Mexico to 
South America; also in Haiti. The type specimen from Acapulco, Mexico. 
Lower Cauirornia: San José del Cabo, Brandegee 42. Purisima, Brandegee in 
1889. 
Sonora: Nogales, Hitchcock 3631, Griffiths 6758, 6799. Lokuka Ranch to Altar, 
Griffiths 6892. Llano, Hitchcock 3526. Johnstons Ranch, east of San Pedro 
River, Merton 1705. Guaymas, Hitchcock 3547, 3553, Palmer 208 and 346 in 
1887. Alamos, Palmer 690, 695, and 750in 1890. White Water, Mearns 2294. 
Sonora, Hitchcock 35414. Hermosillo, Hitchcock 3541, 3573, 3604. 
CursvuAnuA: Southwestern Chihuahua, Palmer 1b in 1885. Between Casas 
Grandes and Sabinal, Nelson 6355. Sierra Madre, Nelson 6297. 
Srnanoa: Culiacdn, Palmer 1544, 1545, 
Saale! fa aac and 1554in 1891. Topolobampo, 
pega Palmer 249 and 251 in 1897. 
Trpic: Between Aguacate and Dolo- 
res, Rose 3351. 
JALIScoO: Guadalajara, Hitchcock 
4 7357. 
GUANAJUATO: Irapuato, Hitchcock 
7424. 
Fie. 34.Distribution of P. hirticaule. Med Coe ieee 
Couma: Alzada, Hitchcock 7089, 7096, 7104. Without locality, Palmer 14, 143, 
and 145 in 1897. 
Veracruz: Bafios del Carrizal, Purpus 6212. 
Guerrero: Balsas, Hitchcock 6773, 6814, 6815. Rio Balsas, Orcutt 4197. 
Oaxaca: Tomellin, Hitchcock 6248, Amer. Gr. Nat. Herb. 28. 
Satvapor: La Unidén, Hitchcock 8794. West side of Lake Ilopango, Hitchcock 
8924. 
Nrcaracua: Masaya, Hitchcock 8654. Without locality, Flint in 1868. 
Costa Rica: Atenas, Hitchcock 8517. 
Hartt: Near the River Artibonite, Picarda 1654. 
Curacao: Boldingh 5379. 
CotomBiA: Puerto de Colombia, Hitchcock 9927. 
