Imsharria orangei (Ascomycota, Lecideaceae), a new genus and species, and a new species of Porpidia, from the Falkland Islands

Alan Fryday*, Anna Götz, Ulrike Waltraut Ruprecht

*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in FachzeitschriftArtikelPeer-reviewed

Abstract

The new genus Imsharria is proposed for a crustose species found on or near mountain summits on the Falkland Islands. It is separated from other genera of Lecideaceae by a combination of Porpidia-type asci, halonate ascospores, immersed apothecia and a hyaline hypothecium, and forms a distinct branch in the phylogenetic analysis using the markers nrITS and mtSSU. The single species, I. orangei, is characterized by its innate apothecia with a brown disc and a thallus containing norstictic acid and an amyloid (I+ violet) medulla. In addition, Porpidia imshaugii is described for a species from the Falkland Islands resembling P. skottsbergiana but with larger ascospores, and Porpidia navarina is shown to belong in the genus Poeltiaria, with the new combination Poeltiaria navarina being made. A key to the Lecideaceae on the Falkland Islands is provided.

OriginalspracheEnglisch
Seiten (von - bis)137-147
Seitenumfang11
FachzeitschriftLichenologist
Jahrgang56
Ausgabenummer4
DOIs
PublikationsstatusVeröffentlicht - 18 Sept. 2024

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Publisher Copyright:
Copyright © The Author(s), 2024.

Systematik der Wissenschaftszweige 2012

  • 106 Biologie

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