COMPOSIT. 231 
South America and the Sandwich Islands. Neariy 200 species have been described, 
which Bentham and Hooker think should be reduced to about 150. 
1. Artemisia mexicana, Willd. Spreng. Syst. iii. p. 490; DC. Prodr. vi. p. 114; 
Less. in Linnea, v. p. 163 ? 
Trxas.—NortH Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 
530, 531); Sourn Mexico, Orizaba (Saldé), valley of Mexico (Bourgeau, 832; Schaffner). 
Hb. Kew. 
2. Artemisia, sp. 
Nortu Mexico, region of San Luis Potosi, 6000 to 8000 feet (Schaffner, 275; Parry 
& Palmer, 528, 529). Hb. Kew. 
This is a new species; but we have not access to the specimens for description. It is 
probable that several other species enter North Mexico, as they are abundant in the 
adjoining parts of New Mexico, Arizona, and California. 
Tribe VIII. SENECIONIDEA. 
Senecionidee, Benth. et Hook. Gen. Plant. ii. pp. 167 et 206. 
This tribe has nearly the same range as the whole Order; and its members exhibit 
great diversity of habit and foliage. It numbers forty-four genera and about 1250 species, 
whereof upwards of 900 are referred to Senecio. 
190. LIABUM. 
Liabum, Adans. Fam. ii. p. 181; Benth. et Hook. Gen. Plant. i. p. 435. 
About forty herbaceous and shrubby species, inhabiting America from Mexico to the 
Argentine Republic. 
1. Liabum andrieuxii, Benth. et Hook. Gen. Pl. ii. p. 437. 
Vernonia andrieuxii, DC. Prodr. v. p. 16. 
South Mexico, between Tehuantepec and the river Guazacualcos (Andrieuar, 269), 
Chiapas &c. (Ghiesbreght, 520). Hb. Kew. 
2. Liabum andromachioides, Hemsley. 
Vernonia andromachioides, Less. in Linnea, vi. pp. 397 et 645. 
Sinclairia andromachioides, Schz. Bip. in Coll. Liebm. n. 399. 
SoutH Mexico, Vera Cruz (Linden, 1228; Galeotti, 2330), Mirador (Liebmann, 399), 
Cordova (Botteri, 1099; Bourgeau, 1848), Orizaba (Botteri, 1078). Hb. Kew. 
3. Liabum asclepiadeum, Schz. Bip. in Linnea, xx. p. 521, et in Seem. Bot. 
Voy. ‘ Herald,’ p. 141. 
South Mexico, Ciudad Real, Chiapas (Linden, 428), valley of Cordova (Bourgeau, 
2205); Panama, Boquete, Veraguas (Seemann, 1592).—CotomBia. Hb. Kew. 
