The plants were first described as a genus in 1965; the name "Pseudo-lithos" means "false-stone" and refers to their pebble-like appearance. It was originally proposed as Lithocaulon earlier in 1956, but this name was already in use for a genus of fossil algae.[1] All species in this genus are highly succulent, small in size, and exhibit tessellation on their stems' surface. Their small flowers appear on the spherical body's surface.[2][3]
Pseudolithos sphaericus (P.R.O. Bally) P.R.O. Bally - N Somalia
TaxonomyEdit
Phylogenetic studies have shown the genus to be monophyletic, and most closely related to the widespread Caralluma stapeliads of North Africa. Marginally more distantly related is a sister branch comprising the genera Echidnopsis and Rhytidocaulon.[5]
ReferencesEdit
^Bally, P. R. O.; Horwood, F. K.; Lavranos, J. J. (1975). "A Monograph of the Genera Pseudolithos and Whitesloanea". The National Cactus and Succulent Journal. 30 (2): 31–36. ISSN 0027-8858. JSTOR 42791977.
^"Tropicos - Name - Pseudolithos P.R.O. Bally". tropicos.org.
^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.
External linksEdit
Wikimedia Commons has media related to Pseudolithos.
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pseudolithos, genus, succulent, flowering, plants, family, apocynaceae, indigenous, arid, areas, somalia, yemen, oman, migiurtinus, plant, cultivationscientific, classificationkingdom, plantaeclade, tracheophytesclade, angiospermsclade, eudicotsclade, asterids. Pseudolithos is a genus of succulent flowering plants of the family Apocynaceae indigenous to arid areas of Somalia Yemen and Oman PseudolithosPseudolithos migiurtinus plant in cultivationScientific classificationKingdom PlantaeClade TracheophytesClade AngiospermsClade EudicotsClade AsteridsOrder GentianalesFamily ApocynaceaeSubfamily AsclepiadoideaeTribe CeropegieaeGenus PseudolithosP R O Bally Contents 1 Description and naming 2 Taxonomy 3 References 4 External linksDescription and naming EditThe plants were first described as a genus in 1965 the name Pseudo lithos means false stone and refers to their pebble like appearance It was originally proposed as Lithocaulon earlier in 1956 but this name was already in use for a genus of fossil algae 1 All species in this genus are highly succulent small in size and exhibit tessellation on their stems surface Their small flowers appear on the spherical body s surface 2 3 Species 4 Pseudolithos caput viperae Lavranos Somalia Pseudolithos cubiformis P R O Bally P R O Bally N Somalia Pseudolithos dodsonianus Lavranos Bruyns amp Meve Somalia amp Oman Pseudolithos gigas Dioli Eastern Ethiopia Pseudolithos harardheranus Dioli Somalia Pseudolithos horwoodii P R O Bally amp Lavranos Somalia Pseudolithos mccoyi Lavranos Yemen amp Oman Pseudolithos migiurtinus Chiov P R O Bally S C Somalia Pseudolithos sphaericus P R O Bally P R O Bally N SomaliaTaxonomy EditPhylogenetic studies have shown the genus to be monophyletic and most closely related to the widespread Caralluma stapeliads of North Africa Marginally more distantly related is a sister branch comprising the genera Echidnopsis and Rhytidocaulon 5 References Edit Bally P R O Horwood F K Lavranos J J 1975 A Monograph of the Genera Pseudolithos and Whitesloanea The National Cactus and Succulent Journal 30 2 31 36 ISSN 0027 8858 JSTOR 42791977 Tropicos Name Pseudolithos P R O Bally tropicos org Notes Pseudolithos Quaqua asclepiad exhibition org Pseudolithos Plants of the World Online Royal Botanic Gardens Kew 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 External links Edit nbsp Wikimedia Commons has media related to Pseudolithos Dave s Garden Columbus Cactus Club photos nbsp This Apocynaceae article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Pseudolithos amp oldid 1174311177, wikipedia, wiki, book, books, library,
