Genus
Region: Chiapas, Central America, South America.
Botany: succulent shrubs, trees, often epiphytes; in wet lowlands, mountain forests, and mangroves;eaves opposite;inflorescence a terminal cluster,sometimes solitary flower; flowers large, showy, fragrant, white, fading yellow, open at night and dry out and die the next day; fruit a woody capsule containing papery winged seeds