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Article
Published: 2021-07-13

Carapa wohllebenii (Meliaceae), a new tree species from montane forests in the Democratic Republic of Congo, Rwanda, and Burundi

Institute for Integrated Natural Sciences–Biology, University of Koblenz-Landau, Universitätsstraße 1, 56070 Koblenz, Germany
Institute for Integrated Natural Sciences–Biology, University of Koblenz-Landau, Universitätsstraße 1, 56070 Koblenz, Germany
Hauptstr. 284, Königswinter, Germany
Meise Botanic Garden, Nieuwelaan 38, 1860 Meise, Belgium, Department of Biology, KU Leuven, 3001 Leuven, Belgium
Eudicots Albertine Rift endemic Guineo-Congolian Region IUCN taxonomy

Abstract

Carapa wohllebenii is described as a new tree species from the Democratic Republic of Congo, Rwanda, and Burundi. Its affinities to Carapa grandiflora are discussed. It differs in a number of morphological features; the most prominent being the oblanceolate-oblong leaflets with distinctly mucronate apex and a length/width ratio of 3.2–4.7 (vs. oblong ovate leaflets with mucronulate apex and a length/width ratio of 1.9–2.7 in C. grandiflora). A molecular phylogeny of Carapa is presented that clearly indicates the distinct phylogenetic position of both species. Based on the current knowledge, the new species is given a preliminary conservation assessment of LEAST CONCERN (LC). Carapa grandiflora is here for the first time recorded from the Democratic Republic of Congo.

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