Pauldopia ghonta
| Pauldopia ghonta | ||||||||||||
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Pauldopia ghonta |
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| Scientific name of the genus | ||||||||||||
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| Steenis | ||||||||||||
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| Pauldopia ghonta | ||||||||||||
| ( Buch.-Ham. Ex G.Don ) Steenis |
Pauldopia ghonta is the only species of the plant genus Pauldopia withinthe trumpet tree family (Bignoniaceae). The distribution area extends from India to Southeast Asia .
description
Vegetative characteristics
Pauldopia ghonta is a shrub or small tree that reaches heights of 1.5 to 2.5, rarely up to 6 meters. The bark of the branches is bare and has many cork pores.
The opposite leaves are about 38 cm long and divided into a petiole and a leaf blade. The leaf blade is doubly pinnate and has a short winged rachis 1st and 2nd order. The almost sessile leaflets are 3 to 7.5 cm long and 1.5 to 2.5 cm wide, ovate to lanceolate, with entire margins and ciliate, and some are slightly hairy. The base of the partial leaflets is pointed to wedge-shaped, the tip rounded to pointed or pointed to tapered. The upper side of the leaf is scaly white, the underside is sparsely covered with glands.
Inflorescences and flowers
The inflorescences are multi-flowered and pendulous, they are interpreted as zymous panicles or thyrs , depending on the author . The inflorescence stem is 15 to 20 cm long. The flower stalk is 1 to 2 cm long and sparsely hairy.
The hermaphroditic, drooping flowers are zygomorphic and five-fold with a double flower envelope . The calyx is bell-shaped, more or less five-lobed, about 1.5 cm long and less than 1 cm wide. The crown is yellow and sometimes with reddish-brown sap marks, the slightly curved, long and funnel-shaped, ribbed corolla tube reaches a length of 3 to 6 cm, the smaller corolla lobes are yellow or red-brown, semicircular, protruding and about 1.5 cm long.
The four fertile stamens do not protrude beyond the crown. The stamens are thread-like, 2 to 2.5 cm long and glabrous. The anthers are bare, the two counters are pointing apart, the connecting fabric between the counters (connective) is sub-like. A sterile staminodium is formed next to the stamens .
The upper, two-chambered ovary is elongated and finely scaly covered with a 3 cm long stylus . It contains a large number of ovules that stand in one or two rows per ovary chamber . The scar is tongue-shaped. There is a discus .
Fruits and seeds
The calyx is not permanent on the fruit. The somewhat sickle-shaped, in cross-section rotating, thin, loculicidal capsule fruit is about 15-30 cm long and has a diameter of about 0.6-0.9 cm. The fruit flaps are thin leathery, the intermediate septum is membranous. The approximately 5–7 millimeters large, flattened and rounded seeds are narrow at the edge, but not or only barely winged.
distribution
Pauldopia ghonta is distributed in Asia from Sri Lanka via India , Nepal , Myanmar , Thailand , Laos and China to Vietnam .
Systematics
The first description of this species was in 1837 by George Don junior under the name ( Basionym ) Bignonia ghorta (with "r") in Gen. Hist. 4: 222. The genus Pauldopia was described in 1969 in Acta Bot. Neerl. 18: 427 by Cornelis Gijsbert Gerrit Jan van Steenis with the new combination to Pauldopia ghorta (Buch.-Ham. Ex G.Don) Steenis . The genus name Pauldopia honors the French botanist Paul Louis Amans Dop (1876–1954). It turned out, however, that the spelling ghorta with “r” is a mistake and was incorrectly taken by George Don in 1837 from the copy of A numerical list of dried specimens of plants (1828–1849), No. 6510, interpreted by Wallich . The correction to the valid name Pauldopia ghonta with "n" will then take place in 2017.
literature
- Eberhard Fischer, Inge Theisen, Lucia G. Lohmann: Bignoniaceae. In: Joachim W. Kadereit (Ed.): The Families and Genera of Vascular Plants . Volume 7: Flowering plants, Dicotyledons. Lamiales (except Acanthaceae including Avicenniaceae) . Springer, Berlin / Heidelberg / New York 2004, ISBN 3-540-40593-3 , pp. 19 (English, limited preview in Google Book Search).
- Zhang Zhiyun, Thawatchai Santisuk: Bignoniaceae. : Pauldopia Steenis and Pauldopia ghonta , p. 216, - online with the same text as the printed work , In: Wu Zheng-yi, Peter H. Raven, Deyuan Hong (ed.): Flora of China. Volume 18: Science Press and Missouri Botanical Garden Press, Beijing and St. Louis 1998, ISBN 0-915279-34-7 .
Web links
Individual evidence
- ↑ Eberhard Fischer, Inge Theisen, Lucia G. Lohmann: Bignoniaceae. In: Joachim W. Kadereit (Ed.): The Families and Genera of Vascular Plants . Volume 7: Flowering plants, Dicotyledons. Lamiales (except Acanthaceae including Avicenniaceae) . Springer, Berlin / Heidelberg / New York 2004, ISBN 3-540-40593-3 , pp. 19 (English, limited preview in Google Book Search).
- ↑ Zhang Zhiyun, Thawatchai Santisuk: Bignoniaceae. : Pauldopia Steenis and Pauldopia ghorta , p. 216, - online with the same text as the printed work , In: Wu Zheng-yi, Peter H. Raven, Deyuan Hong (ed.): Flora of China. Volume 18: Science Press and Missouri Botanical Garden Press, Beijing and St. Louis 1998, ISBN 0-915279-34-7 .
- ↑ online at biodiversitylibrary.org.
- ↑ Rafaël Govaerts (ed.): Pauldopia. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved October 2, 2019.
- ↑ online (PDF), at Natuurtijdschriften.nl, accessed on October 25, 2019.
- ↑ Lotte Burkhardt: Directory of eponymous plant names. Extended Edition. Botanic Garden and Botanical Museum Berlin, Free University Berlin Berlin 2018. online.
- ↑ online at biodiversitylibrary.org.
- ^ VK Madhukar, S. Bandyopadhyay: Correction of a typographical error in Bignonia 'ghorta' (Bignoniaceae). In: Phytotaxa. 331 (1), pp. 147-150, doi: 10.11646 / phytotaxa.331.1.15 .