COMPOSITA. 195 
1. Hymenostephium mexicanum, Benth. in Hook. Ic. Pl. t. 1154. 
SourH Mexico, valley of Cordova (Bourgeau, 1932). Hb. Kew. 
[Trichospira menthoides, H. B. K. Nov. Gen. et Sp. iv. p. 27, t. 312, widely dispersed 
in South America, and occurring in Cuba, may be looked for in Central America. ] 
134. SYNEDRELLA. 
Synedrella, Gertn. Fr. ii. p. 456, t.171; Benth. et Hook. Gen. Plant. ii. p. 383. 
Two herbaceous species, both endemic in America. 
1. Synedrella nodiflora, Gertn. Fr. ii. p. 456, t. 171; Hook. Exot. FL. t. 60. 
Souta Mexico, Campeche (Humboldt & Bonpland); GUATEMALA, Volcan de Fuego 
(Salvin); Costa Rica (Endres); Panama, Chagres (Kendler, 170), Isle of Taboga 
(Hinds).—Widely dispersed in the Wust InprEs and SouTH AMERICA. Naturalized in 
some parts of the Old World. Hb. Kew. 
135. HETEROSPERMUM. 
Heterospermum, Cav. Ie. iii. p. 84 (Heterosperma) ; Benth. et Hook. Gen. Plant. ii. p. 383. 
An exclusively Tropical-American genus of annual herbs, Five species have been 
described, four of which inhabit Western South America. 
1. Heterospermum pinnatum, Cav. Ic. iii. t. 267; DC. Prodr. v. p. 632. 
Norta Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 476) ; 
Sovran Muxico, Tacubaya &c., valley of Mexico (Bilimek, 496 ; Schaffner, 266, 247 ; 
Bourgeau, 373, 587), Real del Monte (Coulter, 377), Leon, west of Guanajuato 
(Mendez). Hb. Kew. 
136. COREOPSIS. 
Coreopsis, Linn. Gen. Plant. n. 981; Benth. et Hook. Gen. Plant. 1. p. 385. 
About sixty species are known, chiefly herbaceous: fourteen inhabit Tropical Africa ; 
about eight are found in the Sandwich Islands ; and the remainder are American, 
ranging from Massachusetts to Peru. 
1. Coreopsis anthemoides, DC. Prodr. v. p. 573. 
Souta Mexico, Cordillera of Guichilaca (Berlandier, 1030), Desierto Viejo (Bourgeau, 
836), without locality (Coulter, 378; Mairet, 111; ‘Tate, 112)? Hb. Kew. 
9. Coreopsis drummondii, Torr. & Gr. Fi. N. Am. ii. p. 345. 
Trxas.—NortH Mxxtco, Matamoros (Berlandier, 2580). Hb. Kew. 
3. Coreopsis galeottii, Hemsley. 
Electra galeottii, A. Gr. Pl. Wright. 1. p. 110. 
Sour Mexico, Cordillera of Oaxaca, 4500 to 5500 feet (Galeotti, 2086), without 
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