莱州崖角藤 lai zhou ya jiao teng

Lianas. Stem 1-2 cm in diam., internodes 3-4 cm, branched. Petiole ca. 30 cm, sheathing; pulvinus ca. 15 mm; leaf blade broadly ovate, ca. 35 × 25-30 cm, leathery, base truncate in outline, pinnately divided; pinnae 3 or 4 on each side, linear-oblong, ca. 14 × 3-4 cm, apex falcate-truncate with ascending falcate tip, with 1 or 2 equally parallel costae, sinuses almost reaching midrib. Peduncle 15-18 cm × ca. 5 mm. Spathe yellow, 10-11.5 cm. Spadix sessile, cylindric, ca. 11 × 1.5-2 cm. Ovary hexagonal-cylindric, apex truncate; stigma sessile, circular. Berry many seeded. Seeds spotted, oblong, fusiform, ca. 2 × 0.7 mm. Fl. May-Aug, mature fr. next year.

Dense forests, on trees or stone walls; below 1500 m. Hainan, Yunnan [N Vietnam].