118 EUPHORBIACEZ. 
11. JULOCROTON. 
Julocroton, Mart. Herb. Fl. Bras. p. 119; Benth. et Hook. Gen. Plant. iii. p. 296. 
Shrubs or undershrubs, inhabiting Tropical and Subtropical America from Mexico to 
Brazil. About twenty species are described. | 
1. Julocroton argenteus, Fr. Didrichs. Plant. nonnull. Mus. Univ. Hafn. 1857, 
p- 42; DC. Prodr. xv. 2, p. 703. 
Croton argenteus, Linn. Sp. Pl. ed. 1, p. 1004; Geisel. Crot. Monogr. p. 67; H. B. K. Nov. Gen. 
et Sp. i. p. 70. 
Heterochlamys quinquenervia, Turcz. in Bull. Soc. Hist. Nat. Mosc. 1843, p. 62. 
Julocroton quinguinervius, Baill. Etud. Gén. Euphorb. p. 376. 
NortH Mexico, near Matamoros (Berlandier, 2280, ; Guatemala (Lriedrichs- 
thal); Nicaragua, Realejo (Sinclair), neighbourhood of Granada (Lévy, 9).—CoLoMBIA. 
Hb. Kew. 
2, Julocroton conspurcatus, K1. in Erichs. Archiv, 1841, i. p. 193. 
Croton conspurcatus, Schl. in Linnea, vii. p. 380. 
Julocroton triqueter y. conspurcatus, Mill. Arg. in DC. Prodr. xv. 2, p. 705. 
South Mexico, Jalapa at 3000 feet (Galeotti, 3768), Tioselo (Schiede). Hb. Kew. 
8. Julocroton decalobus, Benth. et Hook. Gen. Plant. iii. p. 296. 
Croton decalobus, Mill. Arg. in Linnea, xxxiv. p. 80, et in DC. Prodr. xv. 2, p. 523. 
GuaTEeMaLa (friedrichsthal). Hb. Kew. 
4. Julocroton montevidensis «. guatemalensis, Mill. Arg. in DC. Prodr. 
xv. 2, p. 703. 
Guatemata (friedrichsthal). 
The forms a, B, y, and 6, referred to this species by Miiller, are from Brazil and 
Uruguay. 
12. PAUSANDRA. 
Pausandra, Radlk. in Flora, 1870, p. 92; Benth. et Hook. Gen. Plant. iii. p. 298. 
An arboreous monotype. | 
1. Pausandra morisiana, Radlk. in Flora, 1870, p. 92, t. 2; Mill. Arg. in 
Mart. Fl. Bras. xi. 2, p. 503, t. 99. 
Thouinia morisiana, Casar. Novar. Stirp. Bras. Dec. x. 1845. 
Nicaragua, Chontales (Lévy, 484 or 486).—Cotomsia to Brazit. Hb. Kew. 
13. ARGITHAMNIA. 
Argithamnia, Sw. Prodr. p. 39, et Fl. Ind. Occ. p. 335, t. 8; Benth. et Hook. Gen. Plant. iii. 
p. 808. 
Argyrothamnia, Mill. Arg. in DC. Prodr. xv. 2, p. 782. 
An exclusively American genus of about thirty-seven shrubby and _ half-shrubby 
species, ranging from the southern United States to Chili and Buenos Ayres. 
