Exostemma
(from exo, without, and stemma, a crown; stamens exserted). ORD. Rubiaceae. A genus of about twenty species of stove, evergreen trees or shrubs, inhabiting tropical America and the West Indies. Flowers white, axillary and solitary, or disposed in terminal, few or many-flowered panicles; corolla with a long tube and a five-lobed, salver-shaped limb. Leaves ovate or lanceolate, stalked or sub-sessile. For culture, see Cinchona. E. Caribaeum (Caribbean). fl. white, about the length of the leaves, sweet-scented; pedicels axillary, one-flowered. June. l. ovate-lanceolate, acuminated. h. 20ft. West Indies, 1780.
E. longiflorum (long-flowered). fl. white, 5in. long before expansion; pedicels axillary, very short. June. l. linear-lanceolate, attenuated at both ends. h. 20ft. St. Domingo, 1820. (B. M. 4186.)