Rhytidocaulon
Rhytidocaulon is a plant genus in the family Apocynaceae, first described in 1962.[1][2] It is native to northeastern Africa and the Arabian Peninsula
- Species[3]
- Rhytidocaulon paradoxum P.R.O.Bally - Ethiopia
- Rhytidocaulon piliferum Lavranos - Somalia
- Rhytidocaulon richardianum Lavranos - Somalia
- Rhytidocaulon subscandens P.R.O.Bally - Somalia, Ethiopia
- Rhytidocaulon tortum (N.E.Br.) M.G.Gilbert - Arabia
- species with undetermined affinities[3]
- Rhytidocaulon arachnoideum
- Rhytidocaulon baricum
- Rhytidocaulon ciliatum
- Rhytidocaulon fulleri
- Rhytidocaulon macrolobum
- Rhytidocaulon mccoyi
- Rhytidocaulon pseudosubscandens
- Rhytidocaulon sheilae
- Rhytidocaulon specksii
- Rhytidocaulon splendidum
- Taxonomy
| Rhytidocaulon | |
|---|---|
 | |
| Rhytidocaulon macrolobum | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Gentianales |
| Family: | Apocynaceae |
| Subfamily: | Asclepiadoideae |
| Tribe: | Ceropegieae |
| Genus: | Rhytidocaulon P.R.O.Bally |
Phylogenetic studies have shown the genus to be monophyletic, and most closely related to the genus Echidnopsis which inhabits the same region. Marginally more distantly related is a sister branch comprising the genus Pseudolithos and the widespread Caralluma stapeliads of North Africa.[4]
References
- Bally, Peter René Oscar. 1962. Candollea 18: 335
- Tropicos, genus Rhytidocaulon
- The Plant List, Rhytidocaulon
- P. Bruyns, C. Klak, P. Hanacek: Evolution of the stapeliads (Apocynaceae-Asclepiadoideae) - repeated major radiation across Africa in an Old World group. Molecular Phylogenetics and Evolution. 2014. v. 77, no. 1, p. 251--263. ISSN 1055-7903.
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