CENTRONIA. MELASTOMACEJE (AUCT. COGNIAUX). : 455 
LXI. CENTRONIA, D. Don in Mem. Wern. Soc. IV, 314 (1823); 
DC. Prodr. Ill, 106; Endl. Gen. 1208; Benth. et Hook. Gen. I, 
750 et 1007; Triana, Mélast. 14, 71 et 165; Baill. Hist. des Pl. 
VIL, 21 et 61; Cogn. in Mart. Fl. Bras, XIV, part. IV, 46 (non Bl. 
1826). — Conostegiz sect. Eriostegia DC. Prodr. IIL, 174 et Mém. 
Mélast. 69; Endl. l.c. 1219. — Braehyeentrum Meissn. Gen. 114 
- (81) (1837); Endl. l. c. 1207; Naud. in Ann. Sc. nat. ser. 3, XVIII, 
130. — Calyptraria Naud. l. c. 132 (1852). — Davyse sect. Sclero- 
sareus Vaud. l. c. 138. — aeta cde Karst. et Triana in Lin- 
nta, XXVIII, 425 (1856). 
Flores 5-7-meri. Calycis furfuracei vel hirsuti tubus oblongus vel 
hemisphzrieus; limbus ante explicationem floris inapertus conicus 
calyptriformis, sub anthesi regulariter circumscissus. Petala torta, 
late obovata, apice rotundata aut apiculata, nune basi inter se et sta- 
minibus coh:erentia. Stamina petalorum numero dupla, æqualia, fila- 
mentis subulatis, arcuatis; antherz lineares, breves vel elongatæ, 
apice attenuatz et uniporosæ, connectivo infra loculos non producto, 
antice inappendieulato, postice appendice obtusa vel subulata in- 
Structo, appendice interdum calcare adscendente aucta. Ovarium 
ovoideum vel subglobosum, liberum vel paulo supra basim adhærens, 
3-T-loeulare, carpellis sursum productis integris vel bifidis; stylus 
Crassus, erectus, teres, stigmate obtuso. Capsula 3-7-valvis. Semina 
recta, pyramidata. 
Arbores speciose, glabrz vel ramulis ferrugineo-tomentosis vel 
setosis, Amerieze tropieze precipue occidentalis incole. Folia petio- 
lata, sepius ampla, coriacea, integerrima vel dentata, 5-5-nervia 
nune subpenninervia. Paniculæ magnae, terminales, ssepe brachiatze. 
Flores magni, purpurei violacei vel interdum albi. 
Sect. I. CENTRONIOTYPUS. — Ovarium apice in 5-6 lacinias elon- 
gatas acutas dissectum; stylus primum in collo tubuloso ovario 
inclusus. Calyx longe hirpidus vel setosus. 
l. €. laurifolia (D. Don! l. c. 315); ramis glaberrimis; foliis 
amplis, breviter petiolatis, elliptico-oblongis, basi subrotundatis, 
apice breviter acuminatis, integerrimis, triplinerviis nervis laterali- 
bus margini valde proximis fere penninerviis, utrinque glaberrimis; 
