Commelinaceae
鴨跖草科
特徵描述
作者
WANG, Jenn-Che, CHEN, Yo-Jiun, and PENG, Ching-I
型態特徵
Annual or perennial herbs, sometimes with stolons. Stems erect, ascending or decumbent. Leaves linear, lanceolate or ovate; sheath cylindrical. Prophyll sheathing, membranaceous, at base of branches. Inflorescence terminal, rarely axillary, a cincinnus, drepanium, thyrse or flower solitary. Flowers bisexual, or staminate, actinomorphic or zygomorphic, trimerous; sepals 3, green, persistent; petals 3, white, blue or purple, free or fused basally; stamens 6, all alike or heteromorphic with 2-3 fertile stamens and 3-4 staminodes, filaments glabrous or barbate; ovary superior, locules 1 or 2, style glabrous or barbate. Fruit a capsule, dehiscent, rarely indehiscent. Seeds uniseriate, rarely biseriate, embryostega lateral, semilateral, dorsal or apical, hilum punctiform or linear.
屬
About 40 genera with ca. 650 species, in warm regions. Eight genera with 19 species in Taiwan.
參考文獻
- WANG, Jenn-Che, CHEN, Yo-Jiun, and PENG, Ching-I. 2000. Flora of Taiwan, second edition 5: 153. (Fl. Taiwan 2nd edit.)
- Hong, D. Y. 1974. Acta phytotaxonomica sinica eng 12(4): 459-488. (Acta Phytotax. Sin.)
- Hong, D. Y. 1997. Flora Reipublicae Popularis Sinicae 13(3): 69-133. (Fl. Reip. Pop. Sin.)
Floscopa 蔓蘘荷屬
作者
WANG, Jenn-Che, CHEN, Yo-Jiun, and PENG, Ching-I
型態特徵
Perennial herbs. Stems prostrate at base, erect above; rooting at nodes. Leaves lanceolate. Inflorescence a thyrse, terminal, with many-flowered cincinni; bracteoles scalelike. Flowers bisexual, zygomorphic; sepals 3, free, greenish, persistent, elliptic, concave; petals 3, violet, unequal; stamens 6, fertile, anthers transversely ellipsoid; ovary laterally compressed, stipitate. Capsules bilocular, 2-valved, metallic, ellipsoid, laterally compressed, locules 1-seeded,. Seeds ellipsoid, dorsiventral, with radial stripes, light orange or blue, embryostega dorsal, hilum curved.
About 20 species in tropical Africa, Asia, South America and Australia; one species in Taiwan.
