Cyclocodon 土黨參屬
作者
LAMMERS, Thomas G.
型態特徵
Perennial herbs, less often annual, biennial, shrubs, or trees, with milky latex. Leaves alternate (sometimes opposite or whorled), simple, exstipulate. Flowers perfect or rarely imperfect, pendulous or erect, sessile or pedicellate, solitary (terminal or axillary) or in various types of inflorescences; calyx adnate to ovary, forming a hypanthium, usually 5-lobed; corolla sympetalous, actinomorphic or zygomorphic, valvate, usually 5-lobed; stamens usually 5, alternate with corolla lobes; filaments distinct or connate, free or adnate to corolla; anthers distinct or coherent or connate around style; ovary inferior and adnate to hypanthium (rarely superior and free), 2–5(–10)-celled, with axile placentation (rarely 1-celled with parietal, apical, or basal placentation); style solitary, with a ring of hairs below apex; stigma lobes 2–5(–10); ovules numerous (rarely solitary or few). Fruit a capsule or berry.
屬
Eighty genera and over 2,300 species, worldwide but with the greatest concentration of species in Africa and South America. Recently divided into five subfamilies, two of which are represented in the native flora of Taiwan: Campanuloideae by six genera and eight species (two endemic), Lobelioideae by one genus and five species. One additional genus of each is represented by a single naturalized species. In addition, several species are cultivated as ornamentals, in particular Lobelia erinus L. of South Africa and Platycodon grandiflorus (Jacq.) A. DC. of mainland Asia and Japan. The genusSphenoclea, formerly assigned to Campanulaceae, is discordant and has been removed to its own family, Sphenocleaceae.
參考文獻
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Hong, D. Y., Y. S. Lian, and L. D. Shen., Flora Reipublicae Popularis Sinicae 73(2): 1-177. 1983. (Fl. Reip. Pop. Sin.)
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Lammers, T. G., Phytogeography and Botanical Inventory of Taiwan. Pages 43–61. Academia Sinica, Taipei . 1992.
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Lammers, T. G., Novon 8: 36-37. 1998.
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Shimizu, T., Flora of Japan 3a: 405-418. 1993. (Fl. Jap.)
Cyclocodon 土黨參屬
型態特徵
Perennial herbs; stems erect; roots large, tuberous. Leaves opposite or rarely alternate. Flowers perfect, erect, pedicellate, in a terminal 3-flowered cyme at apex and solitary and axillary below; calyx lobes 4–6, subtending hypanthium; corolla actinomorphic, campanulate or infundibular, 4–6-lobed, white; stamens 4–6; filaments distinct; anthers coherent; ovary 4–6-celled; stigma lobes 4–6, broad. Fruit a berry wholly subtended by the calyx lobes; seeds small, numerous.
Two species endemic to eastern Asia, from the Himalayas to Japan, south to New Guinea; one in Taiwan. These species were formerly assigned to Codonopsis or its synonym Campanumoea.