A new tiny-leaved species of Raveniopsis (Rutaceae) from the Pakaraima Mountains of Guyana

Abstract. Raveniopsis microphyllus K.Wurdack, sp. nov., a new species known only from a single peak in the Pakaraima Mtns. of Guyana, is described and illustrated. This white-flowered shrub adds to the many narrow-endemic Guiana Shield species in the genus, and is unique in bearing small, trifoliate...

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Autor principal: Wurdack, Kenneth J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pensoft Publishers 2017
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5740443/
https://www.ncbi.nlm.nih.gov/pubmed/29308038
http://dx.doi.org/10.3897/phytokeys.91.14763
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author Wurdack, Kenneth J.
author_facet Wurdack, Kenneth J.
author_sort Wurdack, Kenneth J.
collection PubMed
description Abstract. Raveniopsis microphyllus K.Wurdack, sp. nov., a new species known only from a single peak in the Pakaraima Mtns. of Guyana, is described and illustrated. This white-flowered shrub adds to the many narrow-endemic Guiana Shield species in the genus, and is unique in bearing small, trifoliate, sclerophyllous leaves. Leaf anatomy and surface micromorphology of the new species were examined to document its montane adaptations. The multiple trichome types of the leaves and flowers of new species were characterized, and the systematics value of the considerable foliar trichome variation in Raveniopsis is discussed.
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spelling pubmed-57404432018-01-05 A new tiny-leaved species of Raveniopsis (Rutaceae) from the Pakaraima Mountains of Guyana Wurdack, Kenneth J. PhytoKeys Research Article Abstract. Raveniopsis microphyllus K.Wurdack, sp. nov., a new species known only from a single peak in the Pakaraima Mtns. of Guyana, is described and illustrated. This white-flowered shrub adds to the many narrow-endemic Guiana Shield species in the genus, and is unique in bearing small, trifoliate, sclerophyllous leaves. Leaf anatomy and surface micromorphology of the new species were examined to document its montane adaptations. The multiple trichome types of the leaves and flowers of new species were characterized, and the systematics value of the considerable foliar trichome variation in Raveniopsis is discussed. Pensoft Publishers 2017-11-28 /pmc/articles/PMC5740443/ /pubmed/29308038 http://dx.doi.org/10.3897/phytokeys.91.14763 Text en Kenneth J. Wurdack 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
Wurdack, Kenneth J.
A new tiny-leaved species of Raveniopsis (Rutaceae) from the Pakaraima Mountains of Guyana
title A new tiny-leaved species of Raveniopsis (Rutaceae) from the Pakaraima Mountains of Guyana
title_full A new tiny-leaved species of Raveniopsis (Rutaceae) from the Pakaraima Mountains of Guyana
title_fullStr A new tiny-leaved species of Raveniopsis (Rutaceae) from the Pakaraima Mountains of Guyana
title_full_unstemmed A new tiny-leaved species of Raveniopsis (Rutaceae) from the Pakaraima Mountains of Guyana
title_short A new tiny-leaved species of Raveniopsis (Rutaceae) from the Pakaraima Mountains of Guyana
title_sort new tiny-leaved species of raveniopsis (rutaceae) from the pakaraima mountains of guyana
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5740443/
https://www.ncbi.nlm.nih.gov/pubmed/29308038
http://dx.doi.org/10.3897/phytokeys.91.14763
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