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Issue: Vol. 595 No. 2: 5 May 2023
Type: Article
Published: 2023-05-05
DOI: 10.11646/phytotaxa.595.2.1
Page range: 127-138
Abstract views: 173
PDF downloaded: 117

A new species and a new record for Cedrela (Meliaceae, Sapindales) in Ecuador: morphological, molecular, and distribution evidence

Herbario Nacional del Ecuador (QCNE)-Instituto Nacional de Biodiversidad, Quito, Ecuador.
Colegio de Ciencias Biológicas y Ambientales COCIBA & Extensión Galápagos, Universidad San Francisco de Quito USFQ, Quito 170901, Ecuador. Adjunct Faculty, University of North Carolina-UNC Chapel Hill. Galapagos Science Center, USFQ, UNC Chapel Hill, San Cristobal, Galapagos, Ecuador. Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito USFQ, Quito 170901, Ecuador.
Colegio de Ciencias Biológicas y Ambientales COCIBA & Extensión Galápagos, Universidad San Francisco de Quito USFQ, Quito 170901, Ecuador. Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito USFQ, Quito 170901, Ecuador.
Colegio de Ciencias Biológicas y Ambientales COCIBA & Extensión Galápagos, Universidad San Francisco de Quito USFQ, Quito 170901, Ecuador.
Ministerio del Ambiente, Agua y Transición Ecológica-MAATE, Madrid y Andalucía, Quito-Ecuador.
Ministerio del Ambiente, Agua y Transición Ecológica-MAATE, Madrid y Andalucía, Quito-Ecuador.
Colegio de Ciencias Biológicas y Ambientales COCIBA & Extensión Galápagos, Universidad San Francisco de Quito USFQ, Quito 170901, Ecuador. Laboratorio de Biotecnología Vegetal, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito USFQ, Quito 170901, Ecuador.
Programa REM-Ecuador. 12 de Octubre y Francisco Salazar, Quito-Ecuador.
Programa REM-Ecuador. 12 de Octubre y Francisco Salazar, Quito-Ecuador.
Colegio de Ciencias Biológicas y Ambientales COCIBA & Extensión Galápagos, Universidad San Francisco de Quito USFQ, Quito 170901, Ecuador. Adjunct Faculty, University of North Carolina-UNC Chapel Hill. Galapagos Science Center, USFQ, UNC Chapel Hill, San Cristobal, Galapagos, Ecuador. Estación de Biodiversidad Tiputini, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito USFQ, Quito, Ecuador. Courtesy Faculty, Department of Wildlife Ecology and Conservation, University of Florida, 110 Newins-Ziegler Hall, Gainesville, FL, 32611, USA.
Andes Mountain Range Cedrela angusticarpa Cedrela kuelapensis “cedro” endemic species Eudicots

Abstract

A new Cedrela (Meliaceae) species, Cedrela angusticarpa, is described through a combination of taxonomic, morphological, and molecular analyses. Cedrela kuelapensis, originally described as an endemic species of northern Peru, is also reported here as a new record for Ecuador. Cedrela angusticarpa has oblong or oblong-lanceolate glabrous leaflets, rounded at the base. Inflorescences are up to 70 cm long, and flowers present a cupuliform calyx with five regular teeth. Fruits are narrowly obovoid capsules. Through molecular analyses using nine microsatellite loci, it is evident that samples from C. angusticarpa form their own genetic cluster when compared to the most morphologically similar species, C. odorata, suggesting that they belong to a new separate species. Additionally, here we report that C. angusticarpa has a very narrow geographic range, recorded between 550 and 1300 m in elevation, and restricted to the relatively small areas of northwestern Ecuador. Climatic niche modelling techniques were used as a proxy for assessing potential distributions and habitat loss percentages for both C. angusticarpa and C. kuelapensis. Finally, IUCN Red List categories and criteria were applied to assess the conservation status of both Cedrela species analyzed here.

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