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On the identity of Festuca jubata Lowe (Poaceae) and the description of a new Festuca species in the Azores Islands

Authors

  • JOSÉ ANTONIO FERNÁNDEZ PRIETO,

    Corresponding author
    1. Área de Botánica, Departamento de Biología de Organismos y Sistemas, Universidad de Oviedo, 33006 Oviedo, Spain
      *E-mail: jafp@uniovi.es
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  • CARLOS AGUIAR,

    1. Área de Biologia, Escola Superior Agrária de Bragança, Campus de Santa Apolónia, Apartado 1172, 5301-855 Bragança, Portugal
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  • EDUARDO DIAS,

    1. Departamento de Ciências Agrárias, Universidade dos Açores, Campus de Angra, Terra-Chã, 9701-851 Angra do Heroísmo, Açores, Portugal
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  • MARIA ISABEL GUTIÉRREZ VILLARÍAS

    1. Área de Botánica, Departamento de Biología de Organismos y Sistemas, Universidad de Oviedo, 33006 Oviedo, Spain
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*E-mail: jafp@uniovi.es

Abstract

The majority of authors consider Festuca jubata Lowe as an endemic species common to Madeira and the Azores. Saint-Yves proposed that F. jubata was an Azorean endemic and described a geovicarious taxon in Madeira: F. filiformis C. Sm. ex Link in Buch ssp. mandonii St.-Yves. We undertook a complete bibliographical revision of the taxonomy, nomenclature, and chorology of F. jubata s.l., and contrasted it with morphological and anatomical studies performed on samples from the Azores and Madeira. Azorean plants usually identified as F. jubata had a character combination distinct from that of those with a Madeiran provenance. Saint-Yves' proposal of two independent taxa was correct, but he erroneously considered F. jubata as an Azorean endemic because the name F. jubata was based on Madeiran plants. Consequently, F. jubata auct. pl. from the Azores belongs to a new species. © 2008 The Linnean Society of London, Botanical Journal of the Linnean Society, 2008, 157, 493–499.

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