17. Tetrastigma henryi Gagnepain, Notul. Syst. (Paris). 1: 264. 1910.
蒙自崖爬藤 meng zi ya pa teng
Tetrastigma henryi var. mollifolium W. T. Wang; T. lunglingense C. Y. Wu & W. T. Wang; T. tenue Craib.
Lianas, woody. Branchlets terete, with longitudinal ridges, glabrous or slightly pubescent; tendrils unbranched. Leaves 3-foliolate to pedately 5-foliolate, rarely 7-foliolate; petiole 2.5-10.5 cm; central petiolule 1-2 cm, lateral petiolules 0.5-1.5 cm, glabrous; leaflets elliptic or elliptic-lanceolate, 5.5-14 × 2-5 cm, lateral veins 6-8 pairs, veinlets inconspicuous, base of central leaflet broadly cuneate, base of lateral leaflets asymmetric, broadly cuneate, or subrounded, margin 6-8-toothed on each side, apex acuminate or caudately so. Inflorescence umbelliform, axillary, 2-6 cm; peduncle 1.5-3 cm, pubescent. Pedicel 2-4 mm, pubescent. Buds oval, 2-2.5 mm. Calyx cupular, pubescent, teeth lanceolate, ca. 1/2 as long as petals. Petals 1.7-2.2 mm, corniculate with ciliate margins at apex. Disk distinct, 4-lobed. Lower part of ovary adnate to disk; style short; stigma 4-lobed. Berry broadly elliptic to spheroid, 6-8 mm in diam., 1- or 2-seeded. Seeds oval, base sharp with a short rostrum, apex rounded, ventral holes furrowed from middle to near apex. Fl. Apr, fr. Jun-Sep.
● Forests in valleys and on slopes; 600-1600 m. Guizhou, Xizang, Yunnan.
Wang (Acta Phytotax. Sin. 17(3): 81. 1979) recognized Tetrastigma henryi var. mollifolium. The pubescence on the leaves is variable, even among the syntypes of T. henryi: A. Henry 9992A (K) and A. Henry 11756 (K) have glabrous leaves, whereas A. Henry 10530A (K) and A. Henry 10530C (K) have densely pubescent leaves.