COMPOSITA. 221 
9. Hymenatherum serratifolium, Hemsley. 
Dysodia serratifolia, DC. Prodr. v. p. 641. 
Sout Mexico, Atilla, Oaxaca (Alaman), Cordillera of Oaxaca, at 4000 to 5000 feet 
(Galeotti, 2040), Chiapas, &c. (Ghiesbreght, 519). Hb. Kew. 
Galeotti and Ghiesbreght’s specimens agree with DeCandolle’s description, except 
that the involucre is more or less bracteolate. 
10. Hymenatherum tenuifolium, Cass. Dict. xxii. p. 313; A. Gr. Pl. Wright. 
i. p. 118. 
Hymenatherum tenuilobum, DC. Prodr. v. p. 642. 
Texas.—Norta Mexico, Chihuahua and Sonora (ex A. Gray)—Cumu. Hb. Kew. 
174. THYMOPHYLLUM. 
Thymophyllum, Lag. Elench. Hort. Matr. Gen. et Sp. Nov. p. 25 (Thymophylla); Benth. et Hook. 
Gen. Plant. 11. p. 410. 
Three half-shrubby species, inhabiting Mexico and the adjoining country to the north. 
1. Thymophyllum greggii, A. Gr. Pl. Fendl. p. 92, Pl. Wright. i. p. 119. 
Trexas.—NortH Mexico, Buena Vista, Coahuila (Gregg). Hb. Kew. 
2. Thymophyllum setifolium, Lag. Elench. Hort. Matr. p. 25; DC. Prodr. v. 
p. 647. 
Norta Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 516), 
without locality (Gregg, 284); Sour Mexico, Zimapan (Coulter, 445). Hb. Kew. 
175. ADENOPAPPUS. 
Adenopappus, Benth. Pl. Hartw. p. 41; Benth. et Hook. Gen. Plant. i. p. 411. 
An herbaceous monotype. 
1. Adenopappus persicefolius, Benth. Pl. Hartw. p. 41. 
Soutn Mexico, banks of rivers, Maravateo (Hartweg). Hb. Kew. 
176. TAGETES. 
Tagetes, Linn. Gen. Plant. n. 964; Benth. et Hook. Gen. Plant. ii. p. 411. 
An American genus of herbs, ranging from Texas, Arizona, and New Mexico to 
Bolivia and Buenos Ayres. There are about twenty species, several of which are 
naturalized in warm countries of the Old World. 
1. Tagetes angustifolia, H. B. K. Nov. Gen. et Sp. iv. p. 194. 
Sourn Mexico, near Toluca, at about 8500 feet (Humboldt & Bonpland). 
2, Tagetes coronopifolia, Willd. Enum. Suppl. p. 60; DC. Prodr. v, p. 646; 
Jacq. Eclog. i. p. 118, t. 80. 
Tagetes clandestina, Lag. Elench. Hort. Matr. p. 28. 
