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    Diversity and taxonomy of the fern genus Vandenboschia Copel. (Hymenophyllaceae, Polypodiidae) in the Afro-Malagasy region and description of a new species

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    Date
    2022
    Author
    Dubuisson, J.Y.
    Boucheron-Dubuisson, E.
    Le Pechon, T.
    Bausero, P.
    Droissart, V.
    Deblauwe, V.
    Ebihara, A.
    Hennequin, S.
    Rouhan, G.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
    Show full item record
    Abstract/Description
    Vandenboschia radicans (supposedly Neotropical and African), V. speciosa (supposedly European and Macaronesian) and V. gigantea (supposedly from western Indian Ocean) are morphologically close species and often confused in collections and in floras. Moreover, the status of African populations is still strongly debated. We undertook to combine morphological, morphometrics and molecular phylogenetic analyses, on these three species, by also including the Neotropical V. collariata, morphologically close to V. radicans, to try to discriminate putative geographical lineages and discuss their taxonomic status. Our results show that V. collariata is distinct from the other species, and that V. radicans, V. speciosa, V. gigantea and the African specimens remain morphologically and morphometrically indistinguishable. Nevertheless, the Neotropical specimens of V. radicans, V. speciosa and V. gigantea are each genetically strongly distinct and are thus clearly supported as distinct species. African specimens are all grouped into a distinct clade sister to V. gigantea and are distinguished by the presence of a well-developed wing on the stipe, lacking in V. gigantea. Taking into account this stipe feature as well as genetic differences, we describe here Vandenboschia confusa as a new species corresponding to the African populations. The origin of this species in the region is discussed, in addition to the complex taxonomy of European-Macaronesian V. speciosa.
    https://dx.doi.org/10.1080/23818107.2022.2062445
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7982
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1080/23818107.2022.2062445
    Research Themes
    Natural Resource Management
    IITA Subjects
    Agronomy; Plant Breeding; Plant Diseases
    Agrovoc Terms
    Ferns; Genus; Taxanomy; Africa
    Regions
    Africa
    Hubs
    Central Africa Hub
    Journals
    Botany Letters
    Collections
    • Journal and Journal Articles4836
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