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Issue: Vol. 470 No. 2: 3 November 2020
Type: Article
Published: 2020-11-03
DOI: 10.11646/phytotaxa.470.2.3
Page range: 145–154
Abstract views: 30
PDF downloaded: 2

Acanthocereus paradoxus (Cactaceae), a new endemic species from Jalisco, Mexico

C.P. 28450, Comala, Colima, Mexico.
Herbario “Luz María Villarreal de Puga” (IBUG), Instituto de Botánica, Universidad de Guadalajara, Camino Ing. Ramón Padilla Sánchez Núm. 2100, Las Agujas, 45200, Zapopan, Jalisco, Mexic.
Herbario “Luz María Villarreal de Puga” (IBUG), Instituto de Botánica, Universidad de Guadalajara, Camino Ing. Ramón Padilla Sánchez Núm. 2100, Las Agujas, 45200, Zapopan, Jalisco, Mexic. Cátedras CONACYT, Laboratorio Nacional de Identificación y Caracterización Vegetal, Departamento de Botánica y Zoología, Universidad de Guadalajara, 45110 Zapopan, Jalisco, Mexico.
dimorphic stems dry deciduous forest Hylocereeae Pacific Lowlands “tasajillo” Eudicots

Abstract

Acanthocereus paradoxus sp. nov., an endemic narrow cylindrical cactus from the state of Jalisco is described and illustrated. The species can be distinguished by its narrow cylindrical mature stems, stem epidermis dull green with some dark green margins, the presence of four central spines, and a greater number of ribs and spines in young stems. A morphological  comparison with the other cylindrical members of Acanthocereus and sympatric species of the genus is provided. Data about its habitat and the conservation status are also given.