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Genus :

ARGOSTEMMA

Family :

RUBIACEAE

Species of this Genus

Description


Rhizomatous or tuberous, unarmed herbs. Stems flattened to subterete. Leaves apparently verticillate and apparently alternate, decussate or distichous, stipules entire or bilobed, sometimes leaflike and thus apparently absent. Inflorescences terminal or sometimes pseudoaxillary, fasciculate, cymose-corymbiform, or umbelliform. Flowers pedicellate or sessile. Calyx limb deeply 4 or 5-lobed. Corolla white, broadly rotate to campanulate lobes 4 or 5, valvate in bud. Stamens 4 or 5, inserted near base of corolla tube. Ovary 2-celled, ovules numerous in each cell on axile placentas attached near top of septum; stigma capitate or 2-lobed. Fruits capsular, subglobose to obovoid, dehiscent through apical. Seeds numerous, small, flattened.