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Cibirhiza spiculata (Apocynaceae), a remarkable new species from eastern Ethiopia
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Biology.
2009 (English)In: Kew bulletin, ISSN 0075-5974, E-ISSN 1874-933X, Vol. 63, no 4, 617-624 p.Article in journal (Refereed) Published
Abstract [en]

The new species Cibirhiza spiculata Thulin & Goyder, from Acacia-Commiphora bushland on sand in the Somali National Regional State (Ogaden) of Ethiopia, is described and illustrated. Its conservation status has been assessed. A molecular phylogenetic analysis confirms its placement in the tribe Fockeeae and indicates a position of the new species as sister to C. albersiana. The almost obsolete anther appendages, the outer corona with spreading lobes, as well as the pollinia with apparently single pollen grains, also support its placement in Cibirhiza. However, C. spiculata differs markedly from both previously known species of this genus (C. dhofarensis in Oman and Yemen and C. albersiana in Tanzania and Zambia) by its narrowly linear, subsessile leaves and by the inner corona lobes that are curved inwards over the gynostegium and each ending in a spinulose head.

Place, publisher, year, edition, pages
2009. Vol. 63, no 4, 617-624 p.
Keyword [en]
Apocynaceae, Asclepiadoideae, Cibirhiza, Ethiopia, Fockeeae, molecular phylogenetics, new species, Ogaden
National Category
Biological Systematics
Research subject
Biology with specialization in Systematics
URN: urn:nbn:se:uu:diva-120588DOI: 10.1007/s12225-008-9060-8OAI: oai:DiVA.org:uu-120588DiVA: diva2:303638
Available from: 2010-03-15 Created: 2010-03-15 Last updated: 2010-04-26Bibliographically approved

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