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Briggsia longifolia

Description from Flora of China

Plants stemless. Petiole 2-6 cm, gray to brownish pubescent; leaf blade narrowly elliptic to oblanceolate, 4-19 X 1-3 cm, adaxially gray appressed puberulent, abaxially grayish appressed pubescent, brownish villous along veins, base attenuate, margin serrulate, apex acute; lateral veins 4-7 on each side of midrib, adaxially visible, abaxially slightly prominent. Cymes 2-10-flowered; peduncle 5.5-22 cm, sparsely brownish villous to pubescent; bracts 2, oblanceolate, 2-6(-10) X 1-2 mm, outside pubescent, inside glabrous, margin entire. Calyx segments narrowly ovate, 5-7 X 2-3 mm, outside sparsely brownish pubescent, margin entire, veins indistinct. Corolla yellow to deep orange, margin sometimes flushed darker, not spotted, or bud purple-blue, 2.2-3.6 cm, outside sparsely glandular puberulent, inside sparsely glandular puberulent; tube (1-) 1.8-2.3 X 0.8-1.6 cm; adaxial lip 2-5 mm, lobes semiorbicular, 2-4 X ca. 4 mm, apex obtuse to rounded; abaxial lip 0.8-1.2 cm, lobes semiorbicular, 4-7 X 3.5-4.5 mm, apex obtuse to rounded. Adaxial stamens adnate to corolla ca. 2.5 mm above base, ca. 1.2 cm, abaxial ones adnate to corolla ca. 3 mm above base, ca. 1.5 cm; filaments glabrous; anthers reniform, thecae confluent; staminode ca. 1 mm. Pistil 1.4-1.7 cm, glabrous. Style ca. 5 mm. Capsule 4-6 cm, glabrous. Fl. Aug-Sep, fr. Sep-Oct.

Forests, on trees, under forests on slopes; 1000-3100 m. S Gansu, N Sichuan, W Yunnan [N Myanmar].


 

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