Tripterospermum 肺形草屬
型態特徵
Perennial scandent or climbing herbs. Stems slender, elongated and twining or creeping. Leaves opposite, usually 3-nerved, petiolate. Inflorescences axillary and terminal, 1-flowered or few-flowered Cymess. Flowers 5-merous, usually with small foliaceous bracts at base. Calyx tube usually 5 keeled costae continuous with calyx lobes, 5-cleft. Corolla tubular to tubular-campanulate, 5-lobed, with plicae in sinuses of lobes. Stamens inserted in lower part of corolla tube, unequal, recurved apically. Nectaries forming a collar-like disc surrounding base of ovary. Ovary stipitate (gynophore), ellipsoid, 1-locular; styles slender, persistent; stigmas 2, linear, recurved at anthesis. Fruit a berry or Capsule, often spindle-shaped, subglobose to ellipsoid. Seeds triquetrous, often compressed, winged or wingless.
About 25 species, E and S Asia; six species in Taiwan.
參考文獻
- WANG, Jenn-Che, CHEN, Chih-Hsiung, LU, Chang-Tze and CHEN, Ya-Chi, Flora of Taiwan, second edition 4: 183. 1998. (Fl. Taiwan 2nd edit.)
- Murata, J., J. Fac. Sci. Univ. Tokyo Sec. III 16(4): 273-339. 1989.
