144 COMPOSITZ. 
1. Dicranocarpus parviflorus, A. Gr. in Mem. Amer. Acad. ser. 2, v. p. 322. 
Heterospermum dicranocarpum, A. Gr. Pl. Wright. i. p. 109. 
New Mexico; Texas.—Norriu Mexico, San Carlos, Tamaulipas (Parry). 
72. GUARDIOLA. 
Guardiola, Humb. et Bonpl. Pl. Aiquin. i. p. 1438, t. 41; Benth. et Hook. Gen. Plant. ii. p. 347. 
An exclusively Mexican and Central-American genus of herbs. 
1. Guardiola atriplicifolia, A. Gr. Pl. Wright. i. p. 111. 
Soutu Mexico, near Morelia, at 7000 feet (Galeotti, 2418). Hb. Kew. 
2. Guardiola mexicana, Humb. et Bonpl. Pl. Aquin. i. p. 144, t. 41. 
South Mexico, Michoacan (Humboldt & Bonpland), Jalisco (Beechey), Cuernavaca 
(Bourgeau, 1213) ; Costa Rica (Grsted). Hb. Kew. 
3. Guardiola platyphylla, A. Gr. Pl. Wright. ii. p. 91. 
NortH Mexico, Sonora (Thurber, Wright, Schott). Hb. Kew. 
4, Guardiola tulocarpus, A. Gr. Pl. Wright. i. p. 111. 
Tulocarpus mexicanus, Hook. et Arn. Bot. Beech. Voy. p. 298, t. 63. 
SoutH Mextco, Tepic (Lay & Collie), between the city of Mexico and Mazatlan (Gregg). 
Hb. Kew. . 
73. BALTIMORA. 
Baltimora, Linn. Mant. p. 158; Benth. et Hook. Gen. Plant. ii. p. 348. 
Limited to the following annual species :-— 
1. Baltimora recta, Linn. Mant. p. 288. 
Fougerouxia recta et alba, DC. Prodr. v. p. 510. . 
Mexico (ex De Candolle); Nicaragua, Volcan el Viejo (Hrsted) ; CentRaL AMERICA, 
without locality (Sinclair). Hb. Kew. 
2. Baltimora scolopospermum, Steetz in Seem. Bot. Voy. ‘Herald,’ p. 154. 
Scolopospermum baltimoroides, Less. in Linnza, v. p. 152, t. 2. figg. 19-31. 
Scolopospermum fougerouxie, DC. Prodr. v. p. 509. 
Nortu Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 428). 
Var. panamensis, Steetz in Seem. Bot. Voy. ‘ Herald,’ p. 154. 
PANAMA, near the city of Panama (Seemann; S. Hayes, 676).—Southward to 
Perv and Brazit. Hb. Kew. 
74. MELAMPODIUM. 
Melampodium, Linn. Gen. Plant. n. 989; Benth. et Hook. Gen. Plant. ii. p. 348. 
An American genus of about eighteen herbaceous species. 
