Roosia: a new genus in the Aizoaceae from the Western Cape, South Africa

Ernst J. Van Jaarsveld

doi:10.25223/brad.n35.2017.a14

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Ernst J. Van Jaarsveld^1,2

¹Babylonstoren Farm, P.O Box 167, Simondium 7670, South Africa (email: ) ernst@babylonstoren.com
²Extraordinary senior lecturer and researcher, Department of Biodiversity and Conservation, University of the Western Cape. Private Bag X17, Bellville 7535, South Africa.

Abstract

A re-evaluation of the two cliffdwelling mesembs, Esterhuysenia grahambeckii Van Jaarsv. and E. lucilleae Van Jaarsv. was considered necessary as a result of distinctive differences in vegetative, flower and capsule morphology and the genus Roosia is described accommodating the only two known species. Both are obligatory cliff dwelling species from sandstone cliffs (Cape Supergroup), R. grahambeckii from the Rooiberg between Robertson and Worcester and Roosia lucilleae from several sites on sheer cliffs along the southern slopes of the Hex River Mountains.

Citation Download Citation

Ernst J. Van Jaarsveld "Roosia: a new genus in the Aizoaceae from the Western Cape, South Africa," Bradleya 2017(35), 150-158, (1 August 2017). https://doi.org/10.25223/brad.n35.2017.a14

Published: 1 August 2017

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