01945nas a2200181 4500008004100000245013700041210006900178300001300247490000800260520121100268100002901479700002401508700002301532700002401555700002201579700002001601856014201621 2016 eng d00aA taxonomic revision of Angraecum section Dolabrifolia (Orchidaceae, Angraecinae), with the description of a new species from Gabon.0 ataxonomic revision of Angraecum section Dolabrifolia Orchidaceae a81–1150 v2803 a

Despite a paucity of material available from continental Africa, previous morphological and molecular phylogenetic studies
have suggested that Angraecum, the largest genus of the angraecoid orchids, is polyphyletic. A recent study based on
broad sampling from the region confirmed the monophyly of section Dolabrifolia and a clear delimitation of four of its five
members, one of which represents a new species. Based on these results, a comprehensive taxonomic revision of Angraecum
sect. Dolabrifolia is presented here. It includes an identification key and a detailed description of each species, along with
color photographs, distribution maps, information on habitat and phenology, and a preliminary risk of extinction assessment
according to the IUCN Red List categories and criteria. Species richness in the section is highest in Atlantic Central Africa
and around the Albertine Rift. The new species, A. biteaui, is described and illustrated with line drawings. It most closely
resembles A. aporoides in general aspect but differs in both foliar and floral characters, and is only known from lowland
forests in Gabon.

1 aSimo-Droissart, Murielle1 aSonké, Bonaventure1 aDroissart, Vincent1 aGeerinck†, Daniel1 aLowry, Porter, P.1 aStévart, Tariq uhttps://rubiaceae-africa.myspecies.info/content/taxonomic-revision-angraecum-section-dolabrifolia-orchidaceae-angraecinae-description-new