954 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
HERBARIUM SPECIMENS FROM MExIco: 
SinaALoa: Colomas, foothills of Sierra Madre, Rose 1687. 
TeEpic: Tepic, river banks and arroyos, Palmer 1921 in 1892. 
Jatisco: Rio Blanco, Palmer 535 in 1886. Guadalajara, barranca, Pringle 11760; 
shaded ledges, Pringle 1732. 
Couma: Alzada, rocky hillside, Hitchcock 7085. 
Micuoacdn: El Ocote, Langlassé 540. 
VERACRUZ: Oérdoba, Fink in 1893; excavated area, clay soil, Hitchcock 6422. 
Orizaba, open woods, hilltop, Hitchcock 6385. Mirador, Liebmann 305. 
Veracruz, Galeotti 5717. 
Curapas: Ocuilapa, table-land, Nelson 3055. 
38. SACCIOLEPIS Nash in Britton, Man. 89. 1901. 
1. Sacciolepis myuros (Lam.) Chase, Proc. Biol. Soc. Washington 21: 7. 1908. 
Panicum myuros Lam. Tabl. Encycl. 1: 172. 1791. 
Type locality, Cayenne, according to the label on the type specimen. 
Rance: Mexico and West Indies to South America. 
HERBARIUM SPECIMENS FROM Mexico: 
Jauisco: Guadalajara, shallow pools, Pringle 2363. 
Veracruz: Potrero de Consoquitla, Liebmann 146. 
39. HYMENACHNE Beauv. Ess. Agrost. 48. pl. 10. f. 8. 1812. 
1. Hymenachne amplexicaulis (Rudge) Nees, Agrost. Bras, 276. 1829. 
Panicum amplexicaule Rudge, Pl. Guian. 1: 21. pl. 27. 1805. 
Type locality, British Guiana. 
RanGE: Tropics and subtropics of the western hemisphere. 
HERBARIUM SPECIMENS FROM MEXICO: 
Smnatoa: Culiacén, Palmer 1791 in 1891. 
Cotma: Colima, Palmer 1259 in 1891; Orcutt 4563. 
Veracruz: Sanborn, Orcutt 3249. 
Oaxaca: Mazaltepec, Rovirosa 628. 
40. HOMOLEPIS Chase, Proc. Biol. Soc. Washington 24: 146. 1911. 
1. Homolepis aturensis (H. B. K.) Chase, Proc. Biol. Soc. Washington 24: 146, 
1911. 
Panicum aturense H. B. K. Nov. Gen. & Sp. 1: 103. pl. $3. 1816. 
Type locality, ‘‘ad cataractas Aturensis,”’ in the Atabapo River, between Venezuela 
and Colombia. 
RanGE: Southern Mexico to South America. 
HERBARIUM SPECIMENS FROM Mexico: 
VERACRUZ: Jicaltepec, Liebmann 391. Inter Isleta et Malvapdn, Liebmann 395. 
Oaxaca: Comaltepec, Galeotti 5859. 
Tasasco: Mayito, Rovirosa 425. 
41. ISACHNE R. Br. Prodr. Fl. Nov. Holl. 196. 1810. 
1. Isachne arundinacea (Swartz) Griseb. Fl. Brit. W. Ind. 553. 1864 
Panicum arundinaceum Swartz, Prodr. Veg. Ind. Occ. 24. 1788. 
Type locality, ‘Jamaica.’’ 
RANGE: Mexico and West Indies to South America. 
HERBARIUM SPECIMENS FROM MEXICco: 
VERACRUZ: Mirador, Liebmann 333. Consoquitla, Liebmann 331. Jalapa, Smith 
1804. Zacuapan, open woods, Purpus 2000. 
Oaxaca: Galeotti 5868. 
Cutapas: Chicharras, Nelson 3764. 
