Pterostemonaceae

Abstract

Shrubs with much-branched stems and dichasial branches; nodes trilacunar. Leaves alternate, crowded at the ends of branchlets, shortly petioled; blades simple, leathery, glandular and glutinousresinous above, finely toothed; stipules minute. Inflorescences few-flowered corymb-like cymes. Flowers regular, perfect, epigynous, 5-merous; calyx tube turbinate, adnate to ovary; sepals triangular, erect, valvate, persistent, surmounting the hypanthium; petals clawed, imbricate, persistent, ultimately reflexed; stamens antesepalous, with broad filaments denticulate at apex, with ovoid, dorsi fixed, introrse anthers; staminodia antepetalous, narrower than stamens; carpels 5, united to form an inferior, 5-celled ovary; ovules 4–6 per locule, axile, ascending; style shortly 5-lobed with short and radiate stigmas. Fruit capsular, 5-valved, septicidal, woody, surmounted by the erect sepals and reflexed petals. Seeds with cartilaginous testa, attenuated at either end; embryo elongate, surrounded by fleshy endosperm.

Keywords

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