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Type: Article
Published: 2018-01-09
Page range: 251–258
Abstract views: 18
PDF downloaded: 3

Quercus candicans (Fagaceae) is not a Quercus but a Roldana (Asteraceae)

Herbario de la Facultad de Ciencias, Universidad Nacional Autónoma de México, Código Postal 04510, Ciudad de México, México.
Herbario y Jardín Botánico, Benemérita Universidad Autónoma de Puebla, Puebla 72000, México.
Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México. Apartado postal 70-233, 04510, Ciudad de México, México.
Asteraceae Fagaceae nomenclature Mexico Eudicots

Abstract

A revision of type material of Quercus candicans at the Herbarium of the Real Jardín Botánico de Madrid (MA), as well as the original description revealed misplacement in the genus Quercus (Fagaceae). The type of Q. candicans clearly corresponds to Roldana lineolata (Asteraceae). A detailed study of types and protologues of the synonyms previously placed under Q. candicans by Muller and Trelease, indicate the oldest valid name for this species is Q. calophylla, which the material referred to this species must now be called. The taxonomic confusion is clarified and a new combination in Roldana, based on Q. candicans is proposed.