13. Colubrina Richard ex Brongniart, Mém. Fam. Rhamnées. 61. 1826.
蛇藤属 she teng shu
Trees, shrubs, or scandent shrubs, deciduous or evergreen, always unarmed. Leaves alternate to rarely opposite, papery to subleathery; stipules minute, early deciduous; margin entire, serrate or crenate; venation pinnate or 3-veined from base. Flowers bisexual, 5-merous, mainly few in axillary cymes or small thyrses, sessile or shortly pedunculate. Calyx tube hemisperical; sepals 5, triangular, abaxially rather densely pubescent, adaxially conspicuously keeled, deciduous. Petals 5, erect to spreading, clawed. Stamens 5, ca. as long as petals; anthers dorsifixed, dehiscing introrsely. Disk massive, fleshy, adnate to calyx tube. Ovary semi-inferior, 3(or 4)-loculed, with 1 ovule per locule; style 3-lobed to 3-fid. Fruit a subglobose capsule; mesocarp thin, dry or rather fleshy; endocarp cartilaginous to woody, splitting explosively or slowly into 3 ventrally dehiscent, 1-seeded endocarpids. Seeds shiny, broadly obovoid, rarely with a minute aril; testa leathery to bony; endosperm fleshy, thick.
About 23 species: tropical areas of Africa, S Asia, Australia, Pacific islands, and South America; two species in China.