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FOC | Family List | FOC Vol. 18 | Gesneriaceae

55. Epithema Blume, Bijdr. 737. 1826.

盾座苣苔属 dun zuo ju tai shu

Herbs, possibly perennial, terrestrial, rhizomatous. Stems usually simple. Leaves 1 to few, lowest leaf unpaired, those near apex usually opposite, equal or nearly so; leaf blade puberulent, base cordate. Inflorescences scorpioid, dense, pseudoterminal or axillary, many-flowered cymes; bract 1. Flowers zygomorphic, often reduced, cleistogamous, sometimes autogamous and intermediate. Calyx actinomorphic, 5-lobed from just above middle; segments equal. Corolla blue to reddish or white, zygomorphic, inside sparsely puberulent centrally or with a ring of hairs; tube tubular, not swollen, longer than limb, 2-3 mm in diam.; limb 2-lipped; adaxial lip 2-lobed, nearly equalling abaxial lip; abaxial lip 3-lobed, lobes subequal, apex rounded. Stamens 2, adnate to adaxial side of corolla tube above middle, included; anthers dorsifixed, apically coherent, thecae divaricate, confluent at apex, dehiscing longitudinally; connective not projecting; staminodes 2, adnate to abaxial side of corolla tube. Disc ringlike, cupular, interrupted, or 2-lobed. Ovary ovoid to globose, 1-loculed; placentas 2, parietal, projecting inward, 2-cleft. Stigma 1, terminal, subcapitate, undivided. Capsule straight in relation to pedicel, globose to subglobose, shorter than calyx, dehiscence circumscissile. Seeds with long deciduous funicle.

About 10 species: Africa, SE Asia; two species in China.

1 Leaf blade of apical stem leaves (0.8-)3.5-8 X (0.5-)2-5.5 cm; stems (1.5-)8-16 cm; leaf blade of basal stem leaves (1-)7.5-12(-14) X (0.8-)4.5-6.5(-9.2) cm; bract hoodlike, obovate, 6-10 mm; pedicel 2-4 mm; corolla inside sparsely puberulent centrally, tube ca. 4.5 mm   1 Epithema carnosum
+ Leaf blade of apical stem leaves 0.4-3 X 0.3-2.5 cm; stems 2-7 cm; leaf blade of basal stem leaves 2-5 X 1.2-4 cm; bract ovate, 4-6 mm; pedicel ca. 0.1 mm; corolla inside with a ring of hairs, tube ca. 2.5 mm   2 Epithema taiwanensis

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