Altingia tenuifolia
| Altingia tenuifolia | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Altingia tenuifolia | ||||||||||||
| Chun ex Hung T.Chang |
Altingia tenuifolia is an evergreen deciduous tree species from the small family of Altingiaceae within the order of saxifrage-like (Saxifragales). It occurs in southern China .
description
Vegetative characteristics
The evergreen tree reaches a height of 6–10 m. The young twigs are hairy at first and later bald. They are sparsely covered with lenticels . The egg-shaped, scaly-covered buds are shiny. The helically arranged leaves have a slender, 1.5–2 cm long, bare stem. The small stipules are decrepit and leave small scars . The simple and undivided, pinnate leaf blade is ovate and has a length of 6.5–8 cm and a width of 3.5–5 cm. It has a rounded to almost heart-shaped base and is pointed up to 1 cm long at the front. The thin leathery blade is two-tone and bare. It has 5-6 pairs of lateral nerves that protrude slightly on both sides. The spreading edge is notched-sawn.
Generative characteristics
Nothing is known about the structure of the inflorescences and flowers .
The fruit stands are single and have a stalk about 1 cm long. They are approx. 1.5 cm wide and obverse conical with a wedge base. They consist of five or six capsules . The individual fruits are woody, two-compartment capsule fruits , which open in folds with two two-part flaps. The teeth of the staminodes are scale-shaped. The styles are no longer present in the fruit state. The seeds are brown. The seed coat is thick and hard. There is little endosperm .
Altingia tenuifolia flowers from April to June and fruit from July to October.
distribution and habitat
Altingia tenuifolia is only known from Guizhou and the south of Jiangxi in southern China.
The tree species grows in forests at around 1000 m above sea level .
Taxonomy
The species was only in 1973 by the Chinese botanist Chang Hung-Ta described . The type locality is in Dushan County in Guizhou Province. Altingia tenuifolia is regarded by some authors as a synonym of Altingia gracilipes , with which it corresponds in the structure of the fruit stands. According to R. Govaerts, however, the species is a synonym of Altingia siamensis and is therefore better placed than Liquidambar siamensis (Craib) Ickert-Bond & J.Wen in the genus Liquidambar .
etymology
The specific epithet tenuifolia ( lat. Thin-leaved ) is derived from lat. Tenuis ( thin ) and lat. -Folius ( -leaved ). The genus Altingia is named in honor of Willem Arnold Alting (1724-1800), the governor-general of the Dutch East Indies at the time when the first descriptor Francisco Noroña visited Java .
swell
- Zhang Zhiyun, Zhang Hongda & Endress PK 2003: Hamamelidaceae. In: Flora of China. Vol. 9: Pittosporaceae through Connaraceae. Science Press, Beijing, Missouri Botanical Garden Press, St. Louis, ISBN 1-930723-14-8 , pp. 18-42. - Altingia tenuifolia - Online
Individual evidence
- ^ Altingia tenuifolia at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed April 7, 2013.
- ↑ Ickert-Bond SM, Pigg KB, Wen J. 2007: Comparative infructescence morphology in Altingia (Altingiaceae) and discordance between morphological and molecular phylogenies. American Journal of Botany 94: 1094-1115. - doi : 10.3732 / ajb.94.7.1094
- ↑ Rafaël Govaerts (Ed.): Liquidambar - World Checklist of Selected Plant Families of the Royal Botanic Gardens, Kew. Last accessed on September 15, 2018.
- ↑ Helmut Genaust: Etymological dictionary of botanical plant names. 3rd, completely revised and expanded edition. Birkhäuser, Basel / Boston / Berlin 1996, ISBN 3-7643-2390-6 , p. 634 ( preview in Google book search ).
- ↑ Hayne FG 1830: Faithful representation and description of the plants used in medicine. Vol. 11. Berlin. - Preview in Google Book Search