ACANTHACEA. 509 
8. SCLEROCALYX. 
Sclerocalyx, Nees in Benth. Bot. Voy. ‘Sulphur,’ p. 145 ; Benth. et Hook. Gen. Plant. ii. p. 1083. 
One shrubby species. 
1. Sclerocalyx mexicana, Nees in Benth. Bot. Voy. ‘Sulphur,’ p. 145; DC. 
Prodr. xi. p. 219. 
Sout Mexico, Acapulco (Hinds), Oaxaca (Ghiesbreght). Hb. Kew. 
9. TRICHANTHERA. 
Trichanthera, Kunth in H. B. K. Nov. Gen. et Sp. ii. p. 248; Benth. et Hook. Gen. Plant. i. 
p. 1084. 
One arboreous species. 
1. Trichanthera gigantea, Kunth; DC. Prodr. xi. p. 218. 
Ruellia gigantea, Humb. & Bonpl. Pl. Aquin. p. 75, t. 102. 
Panama, near Cruces (Seemann, 399), Empire station (S. Hayes, 505).—CoLomBIa to 
Peru and Guiana. Hb. Kew. 
10. BRAVAISIA. 
Bravaisia, DC. Rev. Bign. p. 16; Prodr. ix. p. 239; Benth. et Hook. Gen. Plant. ii. p. 1084. 
Onychacanthus, Nees in DC. Prodr. xi. p. 217. 
One arboreous species. 
1. Bravaisia floribunda, DC. Prodr. ix. p. 240. 
Onychacanthus cumingii et O. berlandierianus, Nees in DC. Prodr. xi. p. 217. 
Onychacanthus speciosus, Cirst. in Vidensk. Meddel. 1854, p. 131; Walp. Ann. v. p. 652. 
Sour Mexico, Sierra San Pedro Nolasco &c. (Jurgensen, 96), Tampico (Berlandier), 
Tlacatalpan (Hahn); Guatemata (Skinner); Nicaracua (Tate); Costa Rica, near 
Puntarenas (rsted).—Co.oms1a to Peru and in Trinpap. Hb. Kew. 
11. ANDROCENTRUM. 
Androcentrum, Lemaire in Fl. des Serres, 1847, Juin, Misc. n. 12 ; Benth. et Hook. Gen. Plant. ii. 
p- 1084. 
An obscure plant. 
1. Androcentrum multiflorum, Lemaire in Fl. des Serres, 1847, Juin, Mise. | 
n. 12. 
Mexico (Galeotti). 
| 12. BARLERIA. 
Barleria, Linn. Gen. Plant. n. 785; Benth. et Hook. Gen. Plant. ii. p. 1091. 
About sixty herbaceous and shrubby species, the greater number inhabiting Asia and 
