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FOC | Family List | FOC Vol. 18 | Gesneriaceae | Loxostigma

1. Loxostigma griffithii (Wight) C. B. Clarke in A. de Candolle & C. de Candolle, Monogr. Phan. 5: 60. 1883.

紫花苣苔 zi hua ju tai

Didymocarpus griffithii Wight, Ill. Ind. Bot. 2: 182. 1850; Dichrotrichum griffithii (Wight) C. B. Clarke.

Stems to 1 m, pubescent, glabrescent, branched. Leaves opposite, spread along stem, unequal to subequal in a pair; petiole 0.5-5 cm, puberulent; leaf blade elliptic to ovate or obovate, often oblique, 4-19 X 1.8-10.5 cm, adaxially sparsely appressed pubescent, abaxially sparsely puberulent to glabrescent, puberulent along veins, base oblique, cuneate to subcordate, margin serrate to crenate-serrulate, apex acuminate to acute. Cymes branched 1-5 , 2-10-flowered; peduncle 2-13 cm, puberulent; bracts ovate to narrowly lanceolate, 3-6 X 1-2.5 mm, margin irregularly dentate. Pedicel 0.8-2 cm. Calyx 5-sect from near base; segments equal, narrowly lanceolate to broadly ovate or oblanceolate, 5-9 X 1.5-7 mm, margin denticulate to entire. Corolla yellowish, purplish to brownish spotted inside, 3-4.2 cm, outside sparsely glandular puberulent to pubescent, inside puberulent; tube 2.8-3 X 1.6-2 cm; adaxial lip lobes semiorbicular, 5-6 X ca. 5 mm; abaxial lip lobes oblong to ovate, 4-10 X 5-8 mm. Adaxial stamens ca. 1.4 cm, abaxial ones ca. 1.8 cm, glabrous; staminode ca. 1.5 mm. Pistil 1.9-3.1 cm, glabrous. Style 7-12 mm. Capsule 6.5-10 cm. Seed appendages 1-2 mm. Fl. Sep-Dec, fr. Nov-Mar.

On trees or rocks in forests; 600-2600 m. Guangxi, Guizhou, SW Sichuan, Xizang (Mêdog Xian), SW and SE Yunnan [Bhutan, NE India, Myanmar, Nepal, N Vietnam].


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