88 BALANOPHOREZ. 
1. LANGSDORFFIA. 
Langsdorffia, Mart. in Eschwege’s Journ. Bras. ii. p.178; Benth. et Hook. Gen. Plant. iii. p. 236. 
A monotype. 
1. Langsdorffia hypogza, Mart. in 1 Eschwege’s Journ. Bras. li. p. 178, t. 5, et 
in Nov. Gen. et Sp. iii. p. 181, tt. 298 et 299; Hook. f. in Trans. Linn. Soc. xxii. t. 2 ; 
DC. Prodr. xvii. p. 140. 
Thonningia mexicana et T. janeirensis, Liebm. in Forhandl. Skand. Naturf. Christ. 1847, p. 180. 
Souru Mexico, Oaxaca (Liebmann).—ConomBia and VENEZUELA to Southern BraziL. 
2. HELOSIS. 
Helosis, Rich. in Mém. Mus. Par. viii. p. 416, t. 20; Benth. et Hook. Gen. Plant. iii. p. 237 , 
Three species (or varieties of one), inhabiting Tropical America. 
1. Helosis mexicana, Liebm. in Forhandl. Skand. Naturf. Christ. 1847, p. 181; 
Eichl. in DC. Prodr. xvii. p. 136 ; Hook. f. in Trans. Linn. Soc. xxii. p- 09, tt. 15 et 16. 
Sour Mzxico, Mirador (Linden, 146), region of Orizaba (Bourgeau, 3030), mountains 
of Vera Cruz and Oaxaca 3000 to 5000 feet (Ziebmann).—Cotomsia. Hb. Kew. 
3. CORYN ZEA. 
Corynea, Hook. f. in Trans. Linn. Soc. xxii. p. 81; Benth. et Hook. Gen. Plant. iii. p. 237. 
Four species, restricted-to the Andes, from Colombia to Peru, and Costa Rica. 
1. Corynza crassa, Hook. f. in Trans. Linn. Soc. xxii. p. 54, t.13; DC. Prodr. 
xvii. p. 137. 
Costa Rica, Volcan de Barba (Wendland).—CoLomBta. 
Series VII. UNISEXUALES. 
Order CXXVI. EUPHORBIACEZ. 
Euphorbiacee, Benth. et Hook. Gen. Plant. iii. p. 239. | 
A large order of trees, shrubs, and herbaceous plants, inhabiting tropical and 
temperate countries, absent from alpine and polar regions. It comprises upwards of 
3000 species, referred to 197 genera. 
1. PEDILANTHUS. 
Pedilanthus, Neck. Elem. Bot. ii. p. 854; Benth. et Hook. Gen. Plant. iii. p. 257. 
An exclusively Tropical-American genus of about fifteen shrubby species. They 
range from Mexico and the West Indies southward to Brazil. 
