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Massalongiaceae fam. nov., an overlooked monophyletic group among the cyanobacterial lichens (Peltigerales, Lecanoromycetes, Ascomycota)

Published online by Cambridge University Press:  22 December 2006

Mats WEDIN ,
Per Magnus JØRGENSEN  and
Elisabeth WIKLUND
Mats WEDIN
Affiliation:
The Swedish Museum of Natural History, P.O. Box 50007, SE-104 05 Stockholm, Sweden. Email: mats.wedin@nrm.se
Per Magnus JØRGENSEN
Affiliation:
Bergen Museum, Bergen University, Allégaten 41, N-5007 Bergen, Norway
Elisabeth WIKLUND
Affiliation:
Department of Ecology and Environmental Science, Umeå University, SE-901 87 Umeå, Sweden
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Abstract

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In this investigation we utilized parsimony and Bayesian analyses of mtSSU and nuLSU rDNA sequence datasets to show that the lichenized ascomycete genera Leptochidium and Polychidium (formerly classified in Placynthiaceae) form a well-supported monophyletic group with Massalongia (Peltigerales, Lecanoromycetes, Ascomycota). This group is also supported by morphological characteristics (ascus type, ascoma ontogeny and anatomy), but does not have a formal name on any level. We describe it here as the family Massalongiaceae. Massalongiaceae is related to a group consisting of Peltigeraceae-Nephromataceae, and Lobariaceae, but the detailed relationships within this group are not resolved with convincing support.

Keywords

ascomycetesclassificationLecanoraleslichensnew taxaPeltigeralesphylogenysystematicstaxonomy
Type
Research Article
Information
The Lichenologist , Volume 39 , Issue 1 , January 2007 , pp. 61 - 67
Copyright
© British Lichen Society 2007