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Issue: Vol. 383 No. 3: 18 December 2018
Type: Article
Published: 2018-12-18
DOI: 10.11646/phytotaxa.383.3.6
Page range: 293–300
Abstract views: 26
PDF downloaded: 1

Living on the rocks: a new species of Stenanona (Annonaceae) from karst limestone forests of southern Mexico

Instituto de Investigaciones Forestales, Universidad Veracruzana, Parque Ecológico El Haya, Col. Benito Juárez, Xalapa, Veracruz, 91070, Mexico.
Herbario Eizi Matuda, Instituto de Ciencias Biológicas, Universidad de Ciencias y Artes de Chiapas, Libramiento Norte Poniente 1150, Col. Lajas-Maciel, Tuxtla Gutierrez, Chiapas, 29039, Mexico
Herbario Eizi Matuda, Instituto de Ciencias Biológicas, Universidad de Ciencias y Artes de Chiapas, Libramiento Norte Poniente 1150, Col. Lajas-Maciel, Tuxtla Gutierrez, Chiapas, 29039, Mexico
Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ing. Ramón Padilla Sánchez 2100, Nextipac, Zapopan, Jalisco, 45510, Mexico
Departamento de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec 351, El Haya, Xalapa, Veracruz, 91070, Mexico
Belize Foundation for Research and Environmental Education, PO Box 129 Punta Gorda, Belize
Chiapas Neotropical flora Sapranthinae tropical rainforest Magnoliids

Abstract

Based on morphological and phylogenetic evidence, a new species of Stenanona endemic to the karst limestone forests from southern Mexico is described and illustrated. The new species is placed in the Desmopsis-Stenanona clade and appears to be closely related to Stenanona migueliana and S. stenopetala, from which it differs in flower colour, petal margins, petal venation, sepal length and ovule arrangement. Phylogenetic relationships, evolution and conservation status of the new species are discussed.