Rhytidocaulon is a plant genus in the family
Apocynaceae, first described in 1962. It is native to northeastern
Africa and the
Arabian Peninsula
The Arabian Peninsula, (; ar, شِبْهُ الْجَزِيرَةِ الْعَرَبِيَّة, , "Arabian Peninsula" or , , "Island of the Arabs") or Arabia, is a peninsula of Western Asia, situated northeast of Africa on the Arabian Plate ...
;Species
[The Plant List, ''Rhytidocaulon'']
/ref>
# '' Rhytidocaulon paradoxum'' P.R.O.Bally - Ethiopia
# '' Rhytidocaulon piliferum'' Lavranos - Somalia
# ''Rhytidocaulon richardianum
Rhytidocaulon is a plant genus in the family Apocynaceae, first described in 1962. It is native to northeastern Africa and the Arabian Peninsula
;Species
# '' Rhytidocaulon paradoxum'' P.R.O.Bally - Ethiopia
# '' Rhytidocaulon piliferum'' Lavran ...
'' Lavranos - Somalia
# ''Rhytidocaulon subscandens
Rhytidocaulon is a plant genus in the family Apocynaceae, first described in 1962. It is native to northeastern Africa and the Arabian Peninsula
;Species
# '' Rhytidocaulon paradoxum'' P.R.O.Bally - Ethiopia
# '' Rhytidocaulon piliferum'' Lavran ...
'' P.R.O.Bally - Somalia, Ethiopia
# ''Rhytidocaulon tortum
Rhytidocaulon is a plant genus in the family Apocynaceae, first described in 1962. It is native to northeastern Africa and the Arabian Peninsula
;Species
# '' Rhytidocaulon paradoxum'' P.R.O.Bally - Ethiopia
# '' Rhytidocaulon piliferum'' Lavran ...
'' (N.E.Br.) M.G.Gilbert - Arabia
;species with undetermined affinities[
;Taxonomy
Phylogenetic studies have shown the genus to be monophyletic, and most closely related to the genus '']Echidnopsis
''Echidnopsis'' is a genus of succulent, cactus-like plants in the family Apocynaceae, first described as a genus in 1871. They are native to eastern Africa and the Arabian Peninsula.
;Accepted species
;Species formerly included
''Echidnopsi ...
'' which inhabits the same region. Marginally more distantly related is a sister branch comprising the genus ''Pseudolithos
''Pseudolithos'' is a genus of succulent flowering plants of the family Apocynaceae, indigenous to arid areas of Somalia, Yemen and Oman.
Description and naming
The plants were first described as a genus in 1965; the name ''"Pseudo-lithos"'' me ...
'' and the widespread '' Caralluma'' stapeliads of North Africa.[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.]
References
{{Taxonbar, from=Q3429900
Apocynaceae genera
Asclepiadoideae