SIMARUBACEA. 173 
3. SIMARUBA. 
Simaruba, Aubl. Pl. Guian. ii. p. 856; Benth. et Hook. Gen. Plant. i. p. 309. 
Three arboreous species, endemic in America. 
1. Simaruba glauca, DC. Prodr. i. p. 733. 
FiLorma.—NicaraGva, environs of Granada (Lévy, 368); Panama, Remedios, Veraguas 
(Seemann).—Also in Gutana, St. Vincent, Dominica, Cupa. Hb. Kew. 
2. Simaruba versicolor, St.-Hil. Pl. Us. Bras. t. 5. 
GuaTEMALA (Friedrichsthal).—Braziu. Hb. Kew. 
4, RIGIOSTACHYS. 
Rigiostachys, Planch. in Hook. Lond. Journ. Bot. vi. p. 29; Benth. et Hook. Gen. Plant. i. p. 309. 
1. Rigiostachys bracteata, Planch. in Hook. Lond. Journ. Bot. vi. p. 30; 
Linnea, xxiii. p. 442. 
?Recchia mexicana, Mog. et Sessé. 
Souta Mexico, Pacific coast of Oaxaca (Galeotti, 7 144), Hb. Kew. 
Planchon would refer this to Rosacee, tribe Quillajez; and Baillon (Adansonia, x 
p. 42) also thinks it should be placed in that order. 
5. CASTELA. 
Castela, Turpin in Ann. Mus. Par. vii. p. 78, t.5; Benth. et Hook. Gen. Plant. i. p. 310. 
There are six, shrubby species, all American. 
1. Castela lychnophoroides, Liebm. in Vidensk. Meddel. 1853, p. 110. 
Sours Mexico, in arid plains near Tehuacan de las Granadas (Liebmann). | 
9. Castela nicholsoni, Hook. Bot. Misc. i. p. 271, t. 56. 
Trxas.—Nortu Mexico, Mier, Nuevo Leon (Zhurber). Hb. Kew. 
3. Castela retusa, Liebm. in Vidensk. Meddel. 1853, p. 110. 
SoutH Mexico, between Tehuantepec and San Carlos, Oaxaca (Liebmann). Hb. Kew. 
4. Castela tortuosa, Liebm. in Vidensk. Meddel. 1853, p. 108. 
Sour Mzxico, Cuesta de Quiotepec, Oaxaca (rsted). Hb. Kew. 
6. HOLACANTHA. 
Holacantha, A. Gray, Pl. Thurb. in Mem. Amer. Acad. nov. ser. v. p. 310; Benth. et Hook. Gen. 
Plant. i. p. 310. 
About six shrubby species, restricted to Subtropical and Tropical America. 
1. Holacantha emoryi, A. Gray, Pl. Thurber. p. 310, t. 8; Bot. Mex. Bound. 
t. 10. . 
