Lysimachia 珍珠菜屬

作者

KAO, Muh-Tsuen and PENG, Ching -I

型態特徵

Herbs, annual, biennial and perennial; stems erect or creeping. Leaves radical or cauline, simple, alternate, opposite or verticillate, rarely pinnately lobed, estipulate. Flowers in racemes, axillary or superposed verticils, bisexual, usually actinomorphic; calyx persistent, (4–)–5(–9)-lobed; corolla rotate, salverform or infundibuliform, sometimes subcampanulate, imbricate in bud, limb 4–9-lobed; stamens as many as corolla lobes and opposite them, inserted on tube; staminodes rare, alternate with stamens; ovary superior, glabrous or pubescent, 1-locular; ovules many, placentation free-central. Seeds small, many, endosperm copious.

屬

Twenty-two genera and about 1,000 species; mainly in the northern hemisphere, a few in the tropics and the southern hemisphere; five genera and fourteen species in Taiwan.

參考文獻

Chen, F. H., C. M. Hu, Y. Y. Fang, C. Z. Cheng, Y. C. Yang, & R. F. Huang., Flora Reipublicae Popularis Sinicae 59(1): 217. 1989. (Fl. Reip. Pop. Sin.)
Hu, C. M. & S. Kelso., Flora of China Family 15: 39-189. 1996. (Fl. China)
KAO, Muh-Tsuen and PENG, Ching -I, Flora of Taiwan, second edition 4: 57. 1989. (Fl. Taiwan 2nd edit.)

Lysimachia 珍珠菜屬

作者

KAO, Muh-Tsuen and PENG, Ching -I

型態特徵

Erect, ascending or prostrate herbs, rarely subshrubs, glabrous to pubescent, sometimes glandular-punctate. Stems terete or angled, sometimes winged. Leaves opposite, alternate, or verticillate, sessile or petioled; blade simple, usually entire. Flowers axillary or terminal, solitary or in racemes, corymbs, or panicles; white, yellow, or red, rarely bluish purple; calyx 4- to 9-parted, usually deeply 5-lobed, persistent; corolla contorted in bud, funnelform, salverform, or broadly campanulate, 4- to 9-lobed, tube often very short; stamens inserted in tube, antepetalous, sometimes alternating with staminodes, anthers obtuse, basifixed or versatile, opening by a terminal pore or by a longitudinal slit; ovary globose or ovoid; style simple, filiform. Capsules longitudinally dehiscent or indehiscent; seeds few to many, testa thin.

About 180 species, chiefly in temperate regions of the northern hemisphere, a few in the tropics, Australia, N. America, and Africa; ten in Taiwan.