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FOC | Family List | FOC Vol. 18 | Gesneriaceae

43. Trisepalum C. B. Clarke in A. & C. de Candolle, Monogr. Phan. 5: 138. 1883.

唇萼苣苔属 chun e ju tai shu

Dichiloboea Stapf.

Herbs, perennial, seldom annual, epipetric or terrestrial, rhizomatous or not rhizomatous, stemmed or stemless. Leaves many, along stem and opposite, or basal, equal to subequal in a pair; leaf blade adaxially puberulent, adaxially densely woolly to pannose, hairs branched, base subcordate to cuneate. Inflorescences monochasial or pseudo-paniculate, lax or rarely dense, axillary and terminal, few- to many-flowered cymes; bracts 2, opposite. Calyx zygomorphic, 2-lipped; adaxial lip 3-lobed; abaxial lip 2-sect from base. Corolla white, pink, or purplish, zygomorphic, inside glabrous; tube oblique, campanulate, not swollen, longer than limb, 3.5-6 mm in diam.; limb slightly 2-lipped; adaxial lip 2-lobed, slightly shorter than abaxial lip; abaxial lip 3-lobed, lobes subequal, apex rounded. Stamens 2, adnate to abaxial side of corolla tube near base, included; anthers dorsifixed, coherent, thecae divaricate, confluent at apex, dehiscing transversely; connective not projecting; staminode 1, adnate to adaxial side of corolla tube. Disc ringlike. Ovary oblong, 1-loculed; placentas 2, parietal, projecting inward, 2-cleft. Stigma 1, terminal, lingulate, undivided. Capsule straight in relation to pedicel, narrowly oblong to narrowly ovoid, ca. 2 X longer than calyx, dehiscing loculicidally to base; valves 4, spirally twisted. Seeds unappendaged.

About 13 species: China, Malaysia, Myanmar, Thailand; one species in China.

Lower Taxon


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