Sladeniaceae

Sladeniaceae
Sladenia celastrifolia , illustration
Systematics
Class : Bedecktsamer (Magnoliopsida) Eudicotyledons Nuclear eudicotyledons Asterids Order : Heather-like (Ericales) Family : Sladeniaceae
Scientific name
Sladeniaceae
( Gilg & Werderm. ) Airy Shaw

The Sladeniaceae are a family of plants from the order of the heather-like (Ericales) with two genera and only three species .

description

They are evergreen trees . The alternate leaves are simple. The leaf margin is serrated or serrated. There are no stipules.

The flowers are axillary zymous inflorescences . The small (less than 5 mm long), hermaphrodite flowers are radial symmetry and usually five-fold. They have a double perianth . There are five free sepals and five free or overgrown petals . The flowers contain ten to fifteen free, fertile stamens . Three carpels have become a top permanent, syncarp ovary grown; there are three styluses.

At Sladenia , fruits are made with winged seeds.

Systematics and distribution

They have a disjoint area only in the Paleotropic : in the subtropics and tropics : in Yunnan (China), Burma , Thailand and in eastern Africa .

The surname Sladeniaceae (Gilg & Werdermann) Airy Shaw , was published in 1964 by Airy Shaw in Kew Bull. , 18, p. 267. The species incorporated here today were previously classified in the Theaceae as the subfamily Sladenioideae (for example Gilg & Werdermann 1925, Hutchinson 1959, Takhtajan 1997). Within the order of the Ericales , the Pentaphylacaceae are most closely related to the Sladeniaceae. The relationships are also confirmed in APG III.

The Sladeniaceae family consists of only two genera with three species:

• Ficalhoa Hiern : With overgrown petals . With only one type:
  • Ficalhoa laurifolia Here : It is native to the mountains of East Africa.
• Sladenia in short : The chromosome numbers are n = 24. The two species are native to Yunnan (China), Burma and Thailand :
  • Sladenia celastrifolia In short : It occurs in northern Myanmar, northern Thailand, Vietnam, western Guizhou and Yunnan.
  • Sladenia integrifolia Y.M.Shui : This endemic occurs only in forests at altitudes between 1000 and 1300 meters in Jinping in the Chinese province of Yunnan.

swell

• The Sladeniaceae family on the AP website. (engl.)
• The family of the Sladeniaceae at DELTA, here only with the genus Sladenia . (engl.)
• Tianlu Min & Bruce Bartholomew: Description in the Flora of China , Volume 12, 2007, p. 364, there only with the genus Sladenia . (engl.)
• PF Stevens & AL Weitzman: Sladeniaceae , in: Klaus Kubitzki (ed.): The families and genera of vascular plants , Volume 6, 2004, Flowering plants, Dicotyledons: Celastrales, Oxalidales, Rosales, Cornales, Ericales , pp. 431-433 , Springer Verlag.

Individual evidence

1. ↑ Birgitta Bremer, Kåre Bremer, Mark W. Chase, Michael F. Fay, James L. Reveal, Douglas E. Soltis, Pamela S. Soltis, Peter F. Stevens et al .: An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III. , in Botanical Journal of the Linnean Society , October 2009, Volume 161, Issue 2, pp. 105-121.
2. ^ Sladeniaceae on the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.
3. ^ David John Mabberley: Mabberley's Plant-Book. A portable dictionary of plants, their classification and uses . 3rd ed. Cambridge University Press 2008. ISBN 978-0-521-82071-4
4. ^ ^{A b} Tianlu Min & Bruce Bartholomew: Sladenia . In: Flora of China, vol. 12, Sladeniaceae. Paraquilegia

Web links

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