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Issue: Vol. 471 No. 3: 17 November 2020
Type: Article
Published: 2020-11-17
DOI: 10.11646/phytotaxa.471.3.6
Page range: 247–257
Abstract views: 129
PDF downloaded: 8

A re-evaluation of taxonomy in Quercus section Lobatae subsection Racemiflorae (Fagaceae), resurrection of the name Q. pennivenia and description of a new taxon, Q. huicholensis

Department of Biology, Fort Lewis College, 1000 Rim Dr., Durango, Colorado 81301, United States of America
Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México (UNAM), Antigua Carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de la Huerta, Morelia, Michoacán 58190, México Escuela Nacional de Estudios Superiores Unidad Morelia, Universidad Nacional Autónoma de México (UNAM), Antigua Carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de la Huerta, Morelia, Michoacán 58190, México
Eudicots Quercus conzattii Quercus urbanii Mexico Red oaks

Abstract

Changes to the taxonomy of Quercus section Lobatae subsection Racemiflorae occurring in western Mexico are here made to reflect new evidence regarding species relationships of two lineages occurring in the southern Sierra Madre Occidental. The name Q. pennivenia is resurrected to recognize plants previously included under the name Q. urbanii. A new taxon, Q. huicholensis, is described to represent a distinct lineage segregated from Q. conzattii. With these nomenclatural changes we recognize the subsection Racemiflorae to consist of six taxa and we provide a key for their determination.

References

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