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

3. Briggsia dongxingensis W. Y. Chun ex K. Y. Pan, Acta Phytotax. Sin. 26: 451. 1988.

东兴粗筒苣苔 dong xing cu tong ju tai

Stems 20-60 cm, densely pubescent. Leaves opposite, spread along stem, unequal in a pair; petiole 0.5-2.8 cm, densely villous; leaf blade elliptic to ovate or obovate, 4.5-16 X 2.3-7 cm, adaxially appressed puberulent to pubescent, abaxially pubescent, villous along veins, base oblique, cuneate, sometimes rounded on 1 side, margin denticulate to serrate, apex acuminate to acute; lateral veins 6-10 on each side of midrib, conspicuous. Cymes 1-4-flowered; peduncle 4-10 cm, pubescent; bracts 2, lanceolate to narrowly oblong, 2-4 X 0.5-1.2 mm, pubescent, margin entire. Calyx segments lanceolate to narrowly so, 5-9 X 1-1.5 mm, outside pubescent to villous, margin entire, veins indistinct. Corolla yellow, inside spotted or not, 4-5 cm, outside sparsely pubescent, inside sparsely pubescent only on lobes of adaxial lip; tube 3.1-4.2 X 1.5-1.7 cm; adaxial lip ca. 1.1 cm, lobes semiorbicular, 5-6 X 5-7 mm, apex rounded; abaxial lip 7-9 mm, lobes semiorbicular, 4-7 X ca. 5 mm, apex rounded. Adaxial stamens adnate to corolla 1.5-2 cm above base, ca. 1.2 cm, abaxial ones adnate to corolla 1.5-1.8 cm above base, ca. 1.8 cm; filaments sparsely glandular pubescent near apex or glabrous; anthers globose, thecae not confluent or confluent; staminode ca. 1.5 mm. Pistil 2.7-3 cm; ovary glabrous. Style 7-11 mm, glandular pubescent. Fruit unknown. Fl. Aug-Oct.

Shaded dense forest near streams. Guangxi (Dongxing Xian) [N Vietnam].


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