特徵描述
作者
LI, Huei-Lin and HUANG, Tseng-Chieng
型態特徵
Woody vines, shrubs or small trees, with milky latex. Leaves opposite, verticillate or rarely alternate, entire, estipulate. Flowers bisexual, regular, in terminal or axillary cymes; calyx 5-lobed, lobes imbricate, persistent. Corolla rotate to salverform, lobes (4–)5, convolute in bud, rarely valvate; stamens (4–)5, adnate to corolla tube, filaments usually short, anthers usually sagittate and acute, connivent, connectives sometimes adhering to stigma, cells sometimes extending into a spur below; ovary 2-carpellate, superior, carpels distinct at base, united at base of style, many-ovuled, with an annular cup-shaped or lobed disc at base, style 1, simple or divided. Fruit usually of 2 distinct follicles, sometimes berry-like or drupe-like; seeds various, usually compressed or with a tuft of hairs (coma); endosperm scanty, sometimes wanting.
屬
About 170 genera and over 2,000 species, chiefly in tropical and subtropical areas; 10 genera and 18 species in Taiwan.
參考文獻
- LI, Huei-Lin and HUANG, Tseng-Chieng, Flora of Taiwan, second edition 4: 192. 1998. (Fl. Taiwan 2nd edit.)
- Huang, T. C., Taiwania 31: 89-128. 1986.
- Huang, T. C., The science reports of the Tohoku Imperial University. Fourth Series, Biology 39: 75-102. 1986. (Sci. Rep. Tohoku Univ. 4. Biol.)
- Huang, T. C., Grana 28(2): 85-95. 1989.
- Li, H. L., Flora of Taiwan 4: 202-221. 1978. (Fl. Taiwan)
- Tsiang, Y., Fl. Reip. Pop. Sin. Tomus 63: 1-249. 1977.
Alyxia 念珠藤屬
作者
LI, Huei-Lin and HUANG, Tseng-Chieng
型態特徵
Twining shrubs. Leaves in verticels of 3–4, or opposite. Flowers in axillary or subterminal cymes; calyx short, 5-lobed; corolla salverform, 5-lobed, tube cylindric, throat glabrous, lobes overlapping to left; stamens 5, adnate to corolla tube at or above middle, cells rounded at base; disc wanting; ovary of 2 distinct carpels, united by a filiform style, stigma pointed or short bifid, pubescent; ovules 2–6, in 2 series in each carpel. Fruit of 1–4 drupes or berries, 1–4-seeded, constricted between the seeds, 1.2–1.5 cm long, 0.7–0.8 cm in diam. Seeds ovoid or oblong, without a wing or coma.
