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19. Sumbaviopsis J. J. Smith, Med. Dep. Landbouw. 10: 357. 1910.
白叶桐属 bai ye tong shu
Authors: Huaxing Qiu & Michael G. Gilbert
Trees, monoecious; indumentum with stellate hairs. Leaves alternate; stipules small; petiole insertion narrowly peltate; leaf blade simple, margin repand-dentate or subentire, palmately 3-veined. Inflorescences terminal, unbranched, bisexual, male flowers distal, female flowers 1 to few at base. Male flowers: calyx 5-lobed, valvate; petals 5 or 10; stamens many; filaments free; anthers 2-locular; receptacle convex, pubescent. Female flowers apetalous; calyx 5-lobed, lobes imbricate; disk annular; ovary 3-locular; ovules 1 per locule; styles recurved, 2-lobed. Fruit a capsule, 2- or 3-locular. Seeds subglobose.
One species: tropical regions in SE Asia to NE India and China.
N. P. Balakrishnan (Bull. Bot. Surv. India 9: 56-58. 1967) proposed that Sumbaviopsis be combined with the otherwise unispecific SE Asian genus Doryxylon Zollinger. Van Welzen (Blumea 44: 411-436. 1999) did not follow this as there was a possibility of further taxonomic changes.
Lower Taxon
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