Speciation in the genera Anthericum and Chlorophytum (Asparagaceae) in Ethiopia — a molecular phylogenetic approach
Journal article, Peer reviewed
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Original versionPhytotaxa. 2017, 297 (2), 139-156. 10.11646/phytotaxa.297.2.2
Sister group relations of Ethiopian species of Anthericum and Chlorophytum and variation patterns in the C. gallabatense and C. comosum complexes are studied using molecular phylogenetic analyses, morphometrics, and scanning electron microscopy of seed surfaces. Our results indicate that molecular data largely support previous morphological conclusions, and that speciation has occurred in Ethiopia at least three times in Anthericum and repeatedly within different subclades of Chlorophytum. Areas particularly rich in endemic species are the lowland area around Bale Mountains in SE Ethiopia and in the Beninshangul Gumuz regional state in W Ethiopia near the border to Sudan. A new species, Chlorophytum mamillatum sp. nov., is described, and the names Chlorophytum tordense Chiov. and Chlorophytum tetraphyllum f. are re-erected.