Difference between revisions of "Celastrus"
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name=Celastrus | name=Celastrus | ||
| − | |author=Jinshuang Ma; Geoffrey A. Levin | + | |author=Jinshuang Ma;Geoffrey A. Levin |
|authority=Linnaeus | |authority=Linnaeus | ||
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|genus=Celastrus | |genus=Celastrus | ||
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-->[[Category:Treatment]][[Category:Celastraceae]] | -->[[Category:Treatment]][[Category:Celastraceae]] | ||
Latest revision as of 19:15, 5 November 2020
Vines, twining, polygamodioecious. Branchlets terete. Leaves deciduous [persistent], alternate; stipules present; petiole present; blade margins denticulate; venation pinnate. Inflorescences terminal or axillary, panicles or cymes [racemes]. Flowers bisexual and unisexual, radially symmetric; perianth and androecium hypogynous; hypanthium absent; sepals 5, distinct; petals 5, white or greenish white; nectary intrastaminal, fleshy. Bisexual flowers: stamens 5, free from and inserted under nectary; staminodes 0; pistil 3-carpellate; ovary superior, 3-locular; placentation axile; style 1; stigmas 3; ovules 2 per locule. Staminate flowers: stamens 5; free from and inserted under nectary; staminodes 0; pistillode present. Pistillate flowers: staminodes 5, alternate with petals, undivided, not gland-tipped, minute; pistil 3-carpellate; ovary superior, 3-locular, placentation axile; style 1; stigmas 3; ovules 2 per locule. Fruits capsules, 3-locular, globose or subglobose, 3-lobed distally, apex not beaked. Seeds [1–]2 per locule, ellipsoid, not winged; aril red, completely surrounding seed. x = 23.
Distribution
North America, e Asia, primarily tropics and subtropics, some temperate regions.
Discussion
Species ca. 30 (2 in the flora).
Selected References
Lower Taxa
Key
| 1 | Inflorescences terminal, panicles; capsules orange; pollen yellow; leaf blades usually oblong, aestivation involute. | Celastrus scandens |
| 1 | Inflorescences axillary, cymes; capsules yellow; pollen white; leaf blades suborbiculate to broadly oblong-obovate or ovate-orbiculate, aestivation conduplicate. | Celastrus orbiculatus |