Altingiaceae
| Altingiaceae | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Oriental sweetgum ( Liquidambar orientalis ) |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Altingiaceae | ||||||||||||
| Horan. |
The Altingiaceae are a small plant family within the order of the saxifrage-like (Saxifragales). The best-known species is the American sweetgum tree ( Liquidambar styraciflua ).
description
Vegetative characteristics
The species of the Altingiaceae are deciduous or evergreen trees . Often times these trees produce resin . There are bud scales.
The alternate leaves arranged on the branches are divided into a petiole and a leaf blade. The simple leaf blades are in the species of the genus Liquidambar s. st. Palmately lobed like a maple leaf, unlapped in the former genus Altingia . The stipules are small and decrepit.
Generative characteristics
The species of the Altingiaceae are single sexed ( monoecious ). The inflorescences and fruit stands are head-shaped to spherical. The male flowers contain four to ten stamens . The two carpels are fused together to form a subordinate ovary.
The capsule fruits contain winged seeds .
The basic chromosome numbers are n = 15 or 16.
Systematics and distribution
For the family of Altingiaceae belonged to 2013 only three genera ( Altingia Noronha , Semiliquidambar H.T.Chang and Liquidambar L. ), which in the older literature and floras usually as part of hamamelidaceae be treated (Hamamelidaceae). There are about 15 types. According to Ickert-Bond et al. In 2013, all types of the three genera are to be placed under Liquidambar .
The Altingiaceae family, i.e. the genus Liquidambar sl since 2013 , has a disjoint area in eastern North America (only eastern to central USA) and Central America , in the eastern Mediterranean and from East Asia to the Malay Archipelago .
- Sweet gum trees ( Liquidambar L. sl, Syn .: Altingia Noronha , Cathayambar (Harms) Nakai , Sedgwickia Griff. Nom. Illeg. , Semiliquidambar H.T.Chang )
swell
- The family of Altingiaceae in APWebsite . (Section systematics)
- The Altingiaceae family at DELTA . (Section description)
- The Hamamelidaceae family (see lat.) - the same text online as the printed work , In: Wu Zhengyi, Peter H. Raven, Deyuan Hong (ed.): Flora of China. Volume 9: Pittosporaceae through Connaraceae. Science Press and Missouri Botanical Garden Press, Beijing and St. Louis 2003, ISBN 1-930723-14-8 .
- S. Shi et al .: Phylogeny of the Altingiaceae based on cpDNA matK, PY-IGS and nrDNA ITS sequences. In: Plant Systematics and Evolution , Volume 230, 2001, pp. 13-24.
- Stefanie M. Ickert-Bond, Jun Wen: A taxonomic synopsis of Altingiaceae with nine new combinations. In: PhytoKeys, Volume 31, 2013, pp. 21-61. doi: 10.3897 / phytokeys.31.6251
Individual evidence
- ^ Altingiaceae in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved September 15, 2018.
- ↑ Stefanie M. Ickert-Bond, Jun Wen: A taxonomic synopsis of Altingiaceae with nine new combinations. In: PhytoKeys , Volume 31, 2013, pp. 21-61. doi : 10.3897 / phytokeys.31.6251
- ↑ a b Rafaël Govaerts (Ed.): Altingiaceae. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved September 15, 2018.
