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A New Species of Yam from Kenya, Dioscorea kituiensis Pollen Morphology, Conservation Status, and Speciation

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Abstract:

Comparative morphological studies of specimens included in Dioscorea gillettii from Kenya and Ethiopia show differentiation between a northern group of populations in Sidamo and Bale Provinces in Ethiopia and near Moyale in northern Kenya and a southern group found in Kitui and Meru Districts of Kenya. Thus the southern element is described as a new species. The two species also differ in their pollen morphology. An illustration, distribution map, and a conservation status assessment are provided for D. kituiensis , and its mode of speciation is discussed.

Keywords: CONSERVATION STATUS; DIOSCOREALES; KENYAN ENDEMIC; NEW SPECIES; POLLEN MORPHOLOGY; SPECIATION

Document Type: Regular Paper

DOI: https://doi.org/10.1600/036364409790139646

Publication date: 2009-12-01

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