RUBIACEA. . 45 
51. CHIONE.. 
Chione, DC. Prodr. iv. p. 461; Benth. et Hook. Gen. Plant. ii. p. 107. 
Three or four shrubby or small arboreous species, inhabiting the West Indies, and 
one of them extending to Mexico. 
1. Chione glabra, DC. Prody. iv. p. 461. 
Crusea glabra, A. Rich. in Mém. Soc. Hist. Nat. Par. v. p. 204, t. 19. f. 1. 
Sourp Mexico, Mirador, San Pablo and Paso del Correo (Liebmann, 77, 282, 283, 
284, 285, 286)—Cusa; Dominica; Jamaica. Hb. Kew. 
52. PLACOCARPA. 
Placocarpa, Hook. fil. in Benth. et Hook. Gen. Plant. 11. p. 107. 
One shrubby species. 
1. Placocarpa mexicana, Hook. fil. in Hemsl. Diag. Pl. Nov. pars altera, p. 30. 
(Tab. XXXVI. figg. 6-14.) 
Frutex ramosissimus, glaberrimus, ramis brevibus tortuosis. Folia opposita, breviter petiolata vel 
fere sessilia, creberrima, subcoriacea, lanceolata, oblonga vel obovata, 4-8 lin. longa, acuta vel 
obtusa, basi valde attenuata, subtus interdum glauca. Flores tetrameri, breviter pedicellati, 
axillares vel terminales, solitarii vel pedunculis trifloris ; calycis lobi obovato-spathulati, obtusi, 
coriacei, persistentes, circiter 2 lin. longi; corolla infundibularis, lente curva, 5-8 lin. longa, 
lobis brevibus, rotundatis, subinzequalibus. Fructus obovatus, a latere compressus, lobis caly- 
cinis coronatus, bilocularis, loculis 1-spermis. 
Soura Muxico, Orizaba (Botteri, 316, 913; Bourgeau, 3022). Hb. Kew. 
EXPLANATION OF TAB. XXXVI. Fiee. 6-14. 
Fig. 6, portion of a plant, natural size; 7, a flower; 8, a corolla, laid open; 9, an ovary; 
10, vertical section of the same ; 11, a young fruit; 12, an ovule; 13, cross section of young 
fruit: all enlarged. Fig. 14, young fruit, natural size. 
Tribe XVI. ALBERTE. 
Albertee, Benth. et Hook. Gen. Plant. i. pp. 9, 22. 
There are seven genera of this tribe, all restricted to Africa and Madagascar. 
Tribe XVII. VANGUERIE. 
Vangueriee, Benth. et Hook. Gen. Plant. ii. pp. 9, 22. 
This tribe also comprises only seven genera ; but two or three of them have numerous 
species. It is not represented in America. 
