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FOC | Family List | FOC Vol. 12 | Vitaceae | Tetrastigma

14. Tetrastigma caudatum Merrill & Chun, Sunyatsenia. 2: 275. 1935.

尾叶崖爬藤 wei ye ya pa teng

Lianas, woody. Branchlets terete, with longitudinal ridges, glabrous; tendrils unbranched. Leaves 3-foliolate or simple, rarely 2-foliate or 5-foliate, rarely pedately 5-foliolate at lower part of stem; petiole 2.5-7 cm; central petiolule 1.5-4 cm, lateral petiolules short, 0.5-1.5 cm, glabrous; leaflets lanceolate, elliptic-lanceolate, or ovate-lanceolate, 6-14 × (2-)3-5 cm, glabrous, lateral veins 4-6 pairs, veinlets inconspicuously raised, base of central leaflet cuneate or broadly cuneate, base of lateral leaflets asymmetric and subrounded, margin with 4-6 obtuse and dentate teeth on each side, teeth rarely fine and inconspicuous, apex caudate-acuminate. Inflorescence umbelliform, axillary, 2.5-3 cm, articulate and subtended with bracts; peduncle 1-3.5 cm, pubescent. Pedicel 2-4 mm, with appressed hairs. Buds bottle-shaped, constricted near upper middle, 2-3 mm, apex truncate or obtuse. Calyx saucer-shaped, glabrous, with 4 triangular denticles. Petals ovate-elliptic, 1.5-2.5 mm, apex corniculate, glabrous. Filaments filiform, ca. 0.7 mm; anthers yellow, ovoid-elliptic, ca. 0.5 mm. Disk distinct, 4-lobed. Lower part of ovary adnate to disk; style distinct, base slightly thick; stigma conspicuously 4-lobed. Berry elliptic, 1-1.2 cm × 6-8 mm in diam., 1-seeded. Seed flat, elliptic, base obtuse, apex subrounded, ventral holes furrowed, parallel, nearly reaching apex. Fl. May-Jul, fr. Sep-Apr.

Forests in valleys, shrublands on hillsides; 200-700 m. Fujian, Guangdong, Guangxi, Hainan [Vietnam].


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