Kewa

Kewa
	Kewa angrae-pequenae
Systematics
Class :	Bedecktsamer (Magnoliopsida)
	Eudicotyledons
	Nuclear eudicotyledons
Order :	Clove-like (Caryophyllales)
Family :	Kewaceae
Genre :	Kewa
Scientific name of the family
	Kewaceae
	Christenh.
Scientific name of the genus
	Kewa
	Christenh.

Kewa is the only genus of the family Kewaceae in the order of the carnation-like (Caryophyllales) within the flowering plants (Magnoliopsida). The only six species left since 2018 are distributed from the island of St. Helena across eastern and southern Africa to Madagascar.

description

Illustration from MELLISS, 1875, p. 315, plate 27 by Kewa acida

Kewa species grow as herbaceous plants or shrubs . They are slightly succulent.

use

The Kewa species of leaves are edible and have a slightly sour taste.

Distribution map

Systematics and distribution

Molecular genetic studies showed that the Molluginaceae family was polyphyletic to the old extent. Some genera were spun off into the families Caryophyllaceae, Limeaceae, Lophiocarpaceae, Microteaceae, for example. The species that have been placed in the genus Kewa since 2014 were previously placed in the Molluginaceae family . However, this turned out to be not monophyletic. By separating the genus Macarthuria into a separate family of Macarthuriaceae and some species of the previous genus Hypertelis , the uniformity of the family Molluginaceae could be restored. Maarten Joost Maria Christenhusz et al. In 2014, the species that do not fit into the clade of Hypertelis were placed in their own genus Kewa Christenh. and this into a newly created family Kewaceae Christenh in 2014 . . The generic name Kewa originated from the name of the Kew district of London, in which the Royal Botanic Gardens are one of the botanical centers in the world.

The position of the genus Kewa , as the only genus of the Kewaceae family within the order of the carnation-like (Caryophyllales) was confirmed by APG IV 2016.

The Kewa species come from southern Ethiopia through southwestern Angola, Kenya, Tanzania and southern Mozambique to southern Africa , Madagascar and St. Helena .

The genus Kewa comprised eight species in 2014, since 2018 there are only six:

Kewa acida (Hook. F.) Christenh. (Syn .: Pharnaceum acidum Hook. F. , Hypertelis acida (Hook. F.) K.Müll. ): This endemic occurs only in southern and southeastern St. Helena.
Kewa angrae-pequenae (Friedrich) Christenh. : It occurs from Namibia to the Western Cape.
Kewa arenicola (Sond.) Christenh. (Syn .: Kewa trachysperma (Adamson) Christenh. ): It occurs in southern and western South Africa.
Kewa bowkeriana (Sond.) Christenh. ( Kewa suffruticosa (Adamson) Christenh. ): It occurs from southern Ethiopia to southern Africa and Madagascar .
Kewa caespitosa (Friedrich) Christenh. : It occurs in Namibia and in the Free State .
Kewa salsoloides (Burch.) Christenh. (Syn .: Pharnaceum salsoloides Burchell , Pharnaceum verrucosum Ecklon & Zeyher , Hypertelis salsoloides (Burch.) Adamson , Hypertelis verrucosa (Ecklon & Zeyher) Fenzl ): It occurs from southern Mozambique and southwestern Angola via Namibia to South Africa.

swell

literature

Maarten Christenhusz, Samuel Brockington, Pascal-Antoine Christin, Rowan F. Sage: On the disintegration of Molluginaceae: a new genus and family (Kewa, Kewaceae) segregated from Hypertelis, and placement of Macarthuria in Macarthuriaceae. In: Phytotaxa , Volume 181, Issue 4, October 2014, p. 238. doi : 10.11646 / phytotaxa.181.4.4
Mats Thulin, Anders Larsson, Erika J. Edwards, Abigail J. Moore: Phylogeny and Systematics of Kewa (Kewaceae). In: Systematic Botany , Volume 43, Issue 3, August 2018, pp. 689-700. doi : 10.1600 / 036364418X697409

Individual evidence

↑ ^a ^b ^c ^d ^e Maarten Christenhusz, Samuel Brockington, Pascal-Antoine Christin, Rowan F. Sage: On the disintegration of Molluginaceae: a new genus and family (Kewa, Kewaceae) segregated from Hypertelis, and placement of Macarthuria in Macarthuriaceae. In: Phytotaxa , Volume 181, Issue 4, October 2014, p. 238. doi : 10.11646 / phytotaxa.181.4.4
↑ The Angiosperm Phylogeny Group: An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV . Botanical Journal of the Linnean Society, 2016, Volume 181, pp. 1-20. doi : 10.1111 / boj.12385
↑ ^a ^b ^c ^d ^e ^f ^g ^h Rafaël Govaerts (Ed.): Kewa. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved December 18, 2018.
↑ ^a ^b ^c Mats Thulin, Anders Larsson, Erika J. Edwards, Abigail J. Moore: Phylogeny and Systematics of Kewa (Kewaceae). In: Systematic Botany , Volume 43, Issue 3, August 2018, pp. 689-700. doi : 10.1600 / 036364418X697409

Web links

Commons : Kewa - collection of images, videos and audio files

[Christenhusz2014-1] Maarten Christenhusz, Samuel Brockington, Pascal-Antoine Christin, Rowan F. Sage: On the disintegration of Molluginaceae: a new genus and family (Kewa, Kewaceae) segregated from Hypertelis, and placement of Macarthuria in Macarthuriaceae. In: Phytotaxa , Volume 181, Issue 4, October 2014, p. 238. doi : 10.11646 / phytotaxa.181.4.4

[APGIV-2] The Angiosperm Phylogeny Group: An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV . Botanical Journal of the Linnean Society, 2016, Volume 181, pp. 1-20. doi : 10.1111 / boj.12385

[WCSP-3] ↑ ^a ^b ^c ^d ^e ^f ^g ^h Rafaël Govaerts (Ed.): Kewa. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved December 18, 2018.

[Thulin2018-4] Mats Thulin, Anders Larsson, Erika J. Edwards, Abigail J. Moore: Phylogeny and Systematics of Kewa (Kewaceae). In: Systematic Botany , Volume 43, Issue 3, August 2018, pp. 689-700. doi : 10.1600 / 036364418X697409