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Taxonomy of Atlantic Central African orchids 5. A new species of Angraecum sect. Conchoglossum (Orchidaceae, Angraecinae) from Gabon and Cameroon

Abstract. Recent field inventories and taxonomic research in Central Africa have resulted in the discovery of many new orchid species. Five specimens of an apparently new Angraecum species were collected in Gabon and Cameroon. They stand out for their hanging habit and short zig-zag stem. Morphology...

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Autores principales: Ječmenica, Vladimir, Droissart, Vincent, Noret, Nausicaa, Stévart, Tariq
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pensoft Publishers 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4816982/
https://www.ncbi.nlm.nih.gov/pubmed/27081350
http://dx.doi.org/10.3897/phytokeys.61.7017
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author Ječmenica, Vladimir
Droissart, Vincent
Noret, Nausicaa
Stévart, Tariq
author_facet Ječmenica, Vladimir
Droissart, Vincent
Noret, Nausicaa
Stévart, Tariq
author_sort Ječmenica, Vladimir
collection PubMed
description Abstract. Recent field inventories and taxonomic research in Central Africa have resulted in the discovery of many new orchid species. Five specimens of an apparently new Angraecum species were collected in Gabon and Cameroon. They stand out for their hanging habit and short zig-zag stem. Morphology of leaves and habit is somewhat comparable to Angraecum cultriforme and Angraecum stolzii, two species from East Africa. Flowers of the novelty share the general morphology of Angraecum pyriforme from which the new species is distinguished by being smaller and with a different lip-spur ratio. Here we show that these five specimens represent a new species, described here as Angraecum lanceolatum. The distinguishing traits include thin lanceolate leaves, convolute distally, with a rhombic lip shape. Dichotomous key to four Central African species of sect. Conchoglossum and a table of the diagnostic characters of the seven related Continental African Angraecum taxa are included here. A preliminary assessment of the conservation status of Angraecum lanceolatum is provided, using the IUCN Red List Categories and Criteria.
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spelling pubmed-48169822016-04-14 Taxonomy of Atlantic Central African orchids 5. A new species of Angraecum sect. Conchoglossum (Orchidaceae, Angraecinae) from Gabon and Cameroon Ječmenica, Vladimir Droissart, Vincent Noret, Nausicaa Stévart, Tariq PhytoKeys Research Article Abstract. Recent field inventories and taxonomic research in Central Africa have resulted in the discovery of many new orchid species. Five specimens of an apparently new Angraecum species were collected in Gabon and Cameroon. They stand out for their hanging habit and short zig-zag stem. Morphology of leaves and habit is somewhat comparable to Angraecum cultriforme and Angraecum stolzii, two species from East Africa. Flowers of the novelty share the general morphology of Angraecum pyriforme from which the new species is distinguished by being smaller and with a different lip-spur ratio. Here we show that these five specimens represent a new species, described here as Angraecum lanceolatum. The distinguishing traits include thin lanceolate leaves, convolute distally, with a rhombic lip shape. Dichotomous key to four Central African species of sect. Conchoglossum and a table of the diagnostic characters of the seven related Continental African Angraecum taxa are included here. A preliminary assessment of the conservation status of Angraecum lanceolatum is provided, using the IUCN Red List Categories and Criteria. Pensoft Publishers 2016-02-25 /pmc/articles/PMC4816982/ /pubmed/27081350 http://dx.doi.org/10.3897/phytokeys.61.7017 Text en Vladimir Ječmenica, Vincent Droissart, Nausicaa Noret, Tariq Stévart http://creativecommons.org/licenses/by/4.0 This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Ječmenica, Vladimir
Droissart, Vincent
Noret, Nausicaa
Stévart, Tariq
Taxonomy of Atlantic Central African orchids 5. A new species of Angraecum sect. Conchoglossum (Orchidaceae, Angraecinae) from Gabon and Cameroon
title Taxonomy of Atlantic Central African orchids 5. A new species of Angraecum sect. Conchoglossum (Orchidaceae, Angraecinae) from Gabon and Cameroon
title_full Taxonomy of Atlantic Central African orchids 5. A new species of Angraecum sect. Conchoglossum (Orchidaceae, Angraecinae) from Gabon and Cameroon
title_fullStr Taxonomy of Atlantic Central African orchids 5. A new species of Angraecum sect. Conchoglossum (Orchidaceae, Angraecinae) from Gabon and Cameroon
title_full_unstemmed Taxonomy of Atlantic Central African orchids 5. A new species of Angraecum sect. Conchoglossum (Orchidaceae, Angraecinae) from Gabon and Cameroon
title_short Taxonomy of Atlantic Central African orchids 5. A new species of Angraecum sect. Conchoglossum (Orchidaceae, Angraecinae) from Gabon and Cameroon
title_sort taxonomy of atlantic central african orchids 5. a new species of angraecum sect. conchoglossum (orchidaceae, angraecinae) from gabon and cameroon
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4816982/
https://www.ncbi.nlm.nih.gov/pubmed/27081350
http://dx.doi.org/10.3897/phytokeys.61.7017
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