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Chiodecton epiphyllum is a lichenicolous fungus on Coenogonium flavicans and belongs in the genus Plectocarpon (Arthoniales: Roccellaceae)

Published online by Cambridge University Press:  28 March 2007

Marcela E. S. Cáceres ,
Paul Diederich ,
Robert Lücking  and
Emmanuël Sérusiaux
Marcela E. S. Cáceres
Affiliation:
Lehrstuhl für Pfianzensystematik, Universität Bayreuth, D-95440 Bayreuth, Germany.
Paul Diederich
Affiliation:
Musée national d'histoire naturelle, 25 rue Munster, L-2160 Luxembourg, Luxembourg.
Robert Lücking
Affiliation:
Department of Botany, The Field Museum, 1400 South Lake Shore Drive, Chicago, IL 60605-2496, USA.
Emmanuël Sérusiaux
Affiliation:
Research Associate F.N.R.S., Department of Botany, University of Liége, Sart Tilman B22, B-4000 Liége, Belgium.
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Abstract

The biological status of Chiodecton epiphyllum (Arthoniales: Roccellaceae), described as a foliicolous lichen from Papua New Guinea, is reassessed, based on additional material from Brazil, Costa Rica, and Papua New Guinea. The species is a lichenicolous fungus growing on the foliicolous lichen Coenogonium flavicans (Gyalectales: Gyalectaceae). Furthermore, its ascomatal anatomy and lichenicolous growth habit suggest placement in the related genus Plectocarpon, instead of Chiodecton. We therefore propose the new combination Plectocarpon epiphyllum [Bas.: Chiodecton epiphyllum]. The species is further lectotypified on its ascomata since parts of the original description which denote vegetative characteristics refer to the sterile thallus of the host lichen.

Type
Research Article
Information
The Lichenologist , Volume 33 , Issue 6 , November 2001 , pp. 503 - 506
Copyright
Copyright © British Lichen Society 2001

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