Briggsia acutiloba K. Y. Pan

Plants stemless. Petiole 2-5 cm, densely rust-brown villous; leaf blade elliptic, 3-6 X 1-2.2 cm, adaxially puberulent and sparsely rust-brown villous, abaxially puberulent to pilose, rust-brown villous along veins, base cuneate, margin crenate-serrate, apex rounded; lateral veins 5-7 on each side of midrib, adaxially conspicuous, abaxially prominent. Cymes ca. 4-flowered; peduncle 5-13 cm, sparsely rust-brown villous and glandular pubescent; bracts 2, lanceolate, 3-6 X ca. 1 mm, outside rust-brown villous, inside glabrous, margin entire. Calyx segments lanceolate, ca. 5 X 2.5 mm, outside sparsely rust-brown villous, margin entire, obscurely 3-veined. Corolla drying yellow, not spotted, ca. 3 cm, outside glabrous, inside glabrous; tube ca. 2 X 1.3 cm; adaxial lip ca. 6 mm, lobes narrowly triangular, ca. 2.5 X 2 mm, apex acute; abaxial lip ca. 1 cm, lobes narrowly triangular, ca. 5 X 3.5 mm, apex acute. Adaxial stamens adnate to corolla 5-6 mm above base, ca. 1 cm, abaxial ones adnate to corolla ca. 5 mm above base, ca. 1.5 cm; filaments sparsely pubescent; anthers reniform, thecae not confluent; staminode ca. 1.5 mm. Pistil ca. 9 mm, glandular puberulent. Style ca. 2 mm. Fruit unknown. Fl. Sep.

Yunnan (Yuxi Xian).

* Shady and damp rocks; 2200-2300 m.