Two new species in the Matelea stenopetala complex (Apocynaceae, Asclepiadoideae) from the Guiana Shield and Amazonian Brazil

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 26 Sep 2012Publisher:Pensoft PublishersJournal:PhytoKeys, volume 17, pages 27-39 (issn: 1314-2011, eissn: 1314-2003,

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Authors: Krings,Alexander; Morillo,Gilberto;

doi: 10.3897/phytokeys.17.3485 , 10.60692/zp6rw-10x04 , 10.60692/y94fc-wmx70

pmid: 23233816

pmc: PMC3519352

Two new species in the Matelea stenopetala complex (Apocynaceae, Asclepiadoideae) from the Guiana Shield and Amazonian Brazil

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Abstract

Deux nouvelles espèces du complexe Matelea stenopetala (Apocynaceae, Asclepiadoideae) sont décrites dans le bouclier guyanais et le Brésil amazonien : Matelea brevistipitata Krings & Morillo, sp. nov. et Matelea trichopedicellataKrings & Morillo, sp. nov. Les nouvelles espèces appartiennent à un petit groupe de taxons à fleurs pubescentes adaxiales dans le complexe, y compris Matelea hildegardiana et Matelea pakaraimensis. Les nouvelles espèces sont décrites et une clé dichotomique est fournie.

Se describen dos nuevas especies en el complejo Matelea stenopetala (Apocynaceae, Asclepiadoideae) del Escudo Guayanés y Brasil Amazónico: Matelea brevistipitata Krings & Morillo, sp. nov. y Matelea trichopedicellataKrings & Morillo, sp. nov. La nueva especie pertenece a un pequeño grupo de taxones de floración adaxial-pubescente dentro del complejo, incluyendo Matelea hildegardiana y Matelea pakaraimensis. Se describen las nuevas especies y se proporciona una clave dicotómica.

Two new species in the Matelea stenopetala complex (Apocynaceae, Asclepiadoideae) are described from the Guiana Shield and Amazonian Brazil: Matelea brevistipitata Krings & Morillo, sp. nov. and Matelea trichopedicellataKrings & Morillo, sp. nov. The new species belong to a small group of adaxially-pubescent-flowered taxa within the complex, including Matelea hildegardiana and Matelea pakaraimensis. The new species are described and a dichotomous key is provided.

تم وصف نوعين جديدين في مجمع Matelea stenopetala (Apocynaceae، Asclepiadoideae) من درع Guiana و Amazonian Brazil: Matelea brevistipitata Krings & Morillo، sp. nov. و Matelea trichopedicellataKrings & Morillo، sp. nov. تنتمي الأنواع الجديدة إلى مجموعة صغيرة من الأصناف المزهرة بالبلوغ المحوري داخل المجمع، بما في ذلك Matelea hildegardiana و Matelea pakaraimensis. يتم وصف الأنواع الجديدة ويتم توفير مفتاح ثنائي التفرع.

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Keywords

Neotropics, Amazon rainforest, Article, Molecular Systematics of Gesneriaceae and Allies, Agricultural and Biological Sciences, Gonolobinae, taxonomy, Biochemistry, Genetics and Molecular Biology, Key (lock), Molecular Biology, Biology, Ecology, Evolution, Behavior and Systematics, Ecology, Amazonian, Botany, Life Sciences, Evolution and Classification of Flowering Plants, Matelea, Apocynaceae, QK1-989, FOS: Biological sciences, species diversification, twining vines, Impact of Pollinator Decline on Ecosystems and Agriculture, Taxon, Burseraceae

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