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Leptobaea Benth.


Description from Flora of China

Subshrubs, terrestrial, not rhizomatous. Stems branched. Leaves few, opposite, often crowded on short branches, equal to subequal in a pair; leaf blade pilose to pubescent, base cuneate to broadly cuneate. Inflorescences umbel-like, lax, axillary, 3-5-flowered cymes; bracts 2, opposite. Calyx actinomorphic, 5-sect from base; segments equal. Corolla yellowish, zygomorphic, inside glabrous; tube campanulate, not swollen, slightly longer than limb, 3-5 mm in diam.; limb indistinctly 2-lipped; adaxial lip 2-lobed, nearly as long as abaxial lip; abaxial lip 3-lobed, lobes subequal, apex rounded. Stamens 4, adnate to corolla near base, included; anthers basifixed, free, thecae subparallel, not confluent, dehiscing poricidally; connective not projecting; staminode 1, adnate to adaxial side of corolla tube. Disc absent. Ovary ellipsoid, 1-loculed; placentas 2, parietal, projecting inward, 2-cleft. Stigma 1, terminal, capitate, undivided. Capsule straight in relation to pedicel, linear, much longer than calyx, dehiscing loculicidally to base; valves 2, straight, not twisted. Seeds unappendaged.

About three species: Bhutan, China, N India, Myanmar, Sikkim, Thailand; one species in China.

Lower Taxon


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