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Two new species of Rhipidoglossum (Orchidaceae: Angraecinae) from Tanzania and Zimbabwe

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Summary

Two new species of angraecoid orchid from East and South-central Africa are described and illustrated. Rhipidoglossum lucieae is known from the Eastern Arc Mountains of Tanzania (West Usambaras) and has been misidentified as R. pulchellum in previous floristic treatments. Rhipidoglossum philatelicum is reported from the Eastern Highlands of Zimbabwe (Bvumba and Chimanimani Mts) and has been misclassified under R. subsimplex. Distribution maps and the conservation status of these two novelties are provided. Future directions in epiphytic orchid species discovery in eastern tropical Africa are proposed.

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Acknowledgements

We thank the curators and staff of BM, BR, BRLU, K, P and UPS for making their collections available and kindly allowing us to use the facilities of their institutions. We thank Andrew Brown for the excellent illustrations of the new species. We are grateful to Nicolas Texier (ULB) for assisting us to produce the maps and calculate the preliminary conservation status. The first author’s PhD research is supported by the Fund for Research Training in Industry and Agriculture (FNRS-FRIA), and his research stay in Kew in July 2017 was funded by a short research stay bursary of FNRS.

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Authors and Affiliations

  1. Herbarium et Bibliothèque de Botanique africaine, Université Libre de Bruxelles, campus de la Plaine, boulevard du Triomphe CP 265, B-1050, Brussels, Belgium

    João N. M. Farminhão

  2. Plant Ecology and Biogeochemistry, Université Libre de Bruxelles, campus de la Plaine, boulevard du Triomphe CP 244, B-1050, Brussels, Belgium

    João N. M. Farminhão

  3. Herbarium, Library, Art & Archives, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, UK

    Phillip J. Cribb

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  1. João N. M. Farminhão
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  2. Phillip J. Cribb
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Correspondence to João N. M. Farminhão.

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Farminhão, J.N.M., Cribb, P.J. Two new species of Rhipidoglossum (Orchidaceae: Angraecinae) from Tanzania and Zimbabwe. Kew Bull 75, 30 (2020). https://doi.org/10.1007/s12225-020-09888-2

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