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Issue: Vol. 682 No. 3: 23 Jan. 2025
Type: Article
Published: 2025-01-23
DOI: 10.11646/phytotaxa.682.3.1
Page range: 199-213
Abstract views: 32
PDF downloaded: 35

Dictyanthus reflexiflorus (Apocynaceae: Asclepiadoideae) a new species from Mexico

Departamento de Biología Comparada, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad de México, México, Apartado Postal 70–282, 04510
Laboratorio Nacional de Identificación y Caracterización Vegetal (LaniVeg), Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, México, 45200
Red de Biodiversidad y Sistemática, Instituto de Ecología, A.C., Carretera Antigua a Coatepec 351, El Haya, Xalapa, Veracruz, México, 91073
Asclepiadoideae endemic Gonolobinae Michoacán phylogeny Eudicots

Abstract

A new species of Dictyanthus from the state of Michoacan, Mexico, is described and illustrated Dictyanthus reflexiflorus sp. nov. It grows in tropical deciduous forests located in the municipality of Tacámbaro. A phylogenetic analysis based on molecular data (plastid regions trnL-trnF and rps 16) was conducted to explore the relationship of the new species. Results place the new species in Dictyanthus. The morphological characters that support this relationship are the presence of uncinate hairs and a reticulate corolla. The species has unique characteristics within the genus, such as a reflexed corolla and the tube 10-lobed closely pressed to the side of the gynostegium. A key to distinguish Dictyanthus reflexiflorus from congeners in Mexico is included.

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