Star jasmine
| Star jasmine | ||||||||||||
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Trachelospermum jasminoides , flowers |
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| Scientific name | ||||||||||||
| Trachelospermum | ||||||||||||
| Lem. |
Star jasmine ( Trachelospermum ) is a genus of plants within the dog venom family (Apocynaceae).
description
Vegetative characteristics
Trachelospermum species are woody lianas that contain a white milky sap. The leaves are opposite.
Generative characteristics
The drooping, zymous inflorescences are terminal, pseudo-lateral or lateral.
The hermaphroditic flowers are radial symmetry and five-fold with a double flower envelope . The five sepals only briefly fused. There are five to ten basal glands on the calyx. The five white or purple petals are fused together like a saucer. The cylindrical corolla tube is widened at the point of attachment of the stamens and the throat is narrowed. The free crown lobes overlap and are turned to the right. The stamens start in the lower third of the corolla tube. The anthers are arrow-shaped. There is a disc of five free scales. The bicompartmental ovary contains numerous ovules . The relatively short stylus ends in a conical scar.
The seeds are elongated and have abundant endosperm . The cotyledons are linear, flat, the radicula is short.
Systematics and distribution
The genus Trachelospermum was established in 1851 by Charles Lemaire . The generic name Trachelospermum Lem. is a noun conservandum and typus conservandum .
The genus Trachelospermum belongs to the tribe Apocyneae in the subfamily Apocynoideae within the family Apocynaceae .
The species of the genus Trachelospermum are widespread in subtropical to tropical Asia.
The genus Trachelospermum contains 9 to 20 species, depending on the author:
- Trachelospermum asiaticum (Siebold & Zucc.) Nakai : It occurs from northern India to Japan and Borneo .
- Trachelospermum assamense Woodson : It occurs from the eastern Himalayas to Assam .
- Trachelospermum axillare Hook.f. : It occurs from the Himalayas to Indochina and southern China .
- Trachelospermum brevistylum Hand .-- Mazz. : It occurs from Tibet to southern China.
- Trachelospermum dunnii (H.Lév.) H.Lév. : It occurs from southern China to northern Vietnam.
- Trachelospermum inflatum (flower) Pierre ex Pichon : It occurs from Sumatra to Java .
- Trachelospermum jasminoides (Lindl.) Lem. : It occurs from Japan to Vietnam .
- Trachelospermum lucidum (D.Don) K.Schum. (Syn .: Trachelospermum bodinieri (H.Lév.) Woodson ): It occurs from Pakistan to Taiwan .
- Trachelospermum vanoverberghii Merr. : This endemic occurs only on the island of Luzon .
No longer counted in this genus:
- Trachelospermum difforme (Walter) A. Gray => Thyrsanthella difformis (Walter) Pichon
use
Trachelospermum jasminoides is a widespread ornamental plant , also planted in the temperate latitudes . Trachelospermum asiaticum is also planted.
supporting documents
literature
- Bingtao Li, Antony JM Leeuwenberg, David J. Middleton: Apocynaceae. : Trachelospermum , p. 166 - online with the same text as the printed work , In: Wu Zheng-yi, Peter H. Raven (Ed.): Flora of China. Volume 16: Gentianaceae through Boraginaceae. Science Press and Missouri Botanical Garden Press, Beijing and St. Louis 1995, ISBN 0-915279-33-9 .
Individual evidence
- ↑ Fred R. Barrie: Report of the General Committee: 9. In: Taxon , Volume 55, 2006, pp. 795-800. (PDF 165 kB) ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. ISSN 0040-0262
- ↑ a b c d e f g h i j k Rafaël Govaerts (Ed.): Trachelospermum. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved January 10, 2019.
