Stapelianthus

Stapelianthus
	Stapelianthus pilosus
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Gentianales
Family:	Apocynaceae
Subfamily:	Asclepiadoideae
Tribe:	Ceropegieae
Genus:	Stapelianthus; Choux ex A.C.White & B.Sloane
Synonyms[1]
	Stapeliopsis Choux non Pillans;

Stapelianthus[2] is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1933. The entire genus is endemic to Madagascar and is concentrated in the far south of the island.

The genus is defined by the unique corona structure of its flowers.[3][4][5]

Species[6]

Stapelianthus arenarius Bosser & Morat
Stapelianthus insignis Descoings
Stapelianthus keraudreniae Bosser & Morat
Stapelianthus madagascarensis Choux
Stapelianthus montagnacii (Boiteau) Boiteau & Jean Bertrand
Stapelianthus pilosus Lavranos & D.S.Hardy

formerly included[6]

Stapelianthus baylissii, syn of Tridentea baylissii
Stapelianthus choananthus, syn of Tridentea choanantha

Taxonomy

The species are extremely close to each other genetically, however the genus overall is very divergent from its relatives on the mainland.

Phylogenetic studies have shown the genus to be most closely related to a large and widespread branch of stapeliads from mainland Africa, comprising the genera Huernia, Tavaresia and a mixed sub-branch including Orbea, Piaranthus and Stapelia.[7]

References

Tropicos.org, retrieved 11 March 2016
P. V. Bruyns & C. Klak (2004). "Revision of the Madagascan endemic Stapelianthus (Apocynaceae) based on molecular and morphological characters". Annals of the Missouri Botanical Garden. 91 (3): 410–437. JSTOR 3298618.
Tropicos
Bruyns P. V., Forster P. I. (1991). "Recircumscription of the Stapelieae (Asclepiadaceae)". Taxon. 40 (3): 381–391. doi:10.2307/1223217.
Schatz, G. E., S. Andriambololonera, Andrianarivelo, M. W. Callmander, Faranirina, P. P. Lowry, P. B. Phillipson, Rabarimanarivo, J. I. Raharilala, Rajaonary, Rakotonirina, R. H. Ramananjanahary, B. Ramandimbisoa, A. Randrianasolo, N. Ravololomanana, Z.S. Rogers, C.M. Taylor & G. A. Wahlert. 2011. Catalogue of the Vascular Plants of Madagascar. Monographs in systematic botany from the Missouri Botanical Garden
The Plant List
Bruyns P., Klak C., Hanacek P. (2014). "Evolution of the stapeliads (Apocynaceae–Asclepiadoideae) – repeated major radiation across Africa in an Old World group". Molecular Phylogenetics and Evolution. 77 (1): 251–263. doi:10.1016/j.ympev.2014.03.022.CS1 maint: multiple names: authors list (link)

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[1] Tropicos.org, retrieved 11 March 2016

[2] P. V. Bruyns & C. Klak (2004). "Revision of the Madagascan endemic Stapelianthus (Apocynaceae) based on molecular and morphological characters". Annals of the Missouri Botanical Garden. 91 (3): 410–437. JSTOR 3298618.

[3] Tropicos

[4] Bruyns P. V., Forster P. I. (1991). "Recircumscription of the Stapelieae (Asclepiadaceae)". Taxon. 40 (3): 381–391. doi:10.2307/1223217.

[5] Schatz, G. E., S. Andriambololonera, Andrianarivelo, M. W. Callmander, Faranirina, P. P. Lowry, P. B. Phillipson, Rabarimanarivo, J. I. Raharilala, Rajaonary, Rakotonirina, R. H. Ramananjanahary, B. Ramandimbisoa, A. Randrianasolo, N. Ravololomanana, Z.S. Rogers, C.M. Taylor & G. A. Wahlert. 2011. Catalogue of the Vascular Plants of Madagascar. Monographs in systematic botany from the Missouri Botanical Garden

[g-6] The Plant List

[7] Bruyns P., Klak C., Hanacek P. (2014). "Evolution of the stapeliads (Apocynaceae–Asclepiadoideae) – repeated major radiation across Africa in an Old World group". Molecular Phylogenetics and Evolution. 77 (1): 251–263. doi:10.1016/j.ympev.2014.03.022.CS1 maint: multiple names: authors list (link)