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FOC | Family List | FOC Vol. 13 | Lythraceae

2. Duabanga Buchanan-Hamilton, Trans. Linn. Soc. London. 17: 177. 1837.

八宝树属 ba bao shu shu

Authors: Haining Qin & Shirley A. Graham

Trees 8-45 m tall, buttressed. Branchets 4-angled, becoming terete with age; ultimate branches pendulous. Leaves shortly petiolate, opposite, oblong to ovate or lanceolate, leathery to papery, glabrous, secondary vein pairs numerous, joined in a series of intramarginal arches, base rounded to cordate, apex acute to acuminate. Inflorescence of few to many flowers in a lax, terminal corymb. Flowers actinomorphic, bisexual, usually 4- or 6-merous, but variably 4-8-merous on same or different individuals. Floral tube obconic or broadly campanulate, persistent in fruit; sepals 4-8, triangular-ovate, thick. Petals 4-8, broad, crinkled, shortly clawed. Stamens 12 or 24-50+; filaments filiform-subulate from a broadened base, long; anthers recurved or replicate over one end of connective. Ovary semi-inferior; ovules numerous; style long-exserted, slender; stigma capitate to slightly 4-lobed. Fruit indurate capsules, partially surrounded by persistent floral tube, oblong to ovoid-globose, loculicidally deeply dehiscent, 4-9-valved. Seeds numerous, filiform, fragile, 2-tailed. 2n = 48.

Two or three species: evergreen rain forests of SE Asia; two species (one cultivated) in China.

The species are trees of lowland rain forests.

1 Stamens biseriate, 50 or more; flowers usually 6-merous; capsules 3-6 × 3.2-3.5 cm.   1 D. grandiflora
+ Stamens uniseriate, 24-45; flowers usually 4- or 5-merous; capsules 1.5-2.5 × 1.7-2.5 cm.   2 D. ×taylorii

Lower Taxa


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