Dismantling Herpothallon: Herpothallon antillarum (Arthoniomycetes: Arthoniaceae) is a member of the genus Diorygma (Lecanoromycetes: Graphidaceae)

The new combination Diorygma antillarum (Vain.) Nelsen, Lücking & Rivas Plata is proposed. This taxon lacks ascomata and produces unique isidia-like structures for vegetative dispersal. Its systematic position was clarified by incorporating molecular sequence data from the small subunit of the m...

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Bibliographic Details
Published in:The Bryologist 2012-06, Vol.115 (2), p.313-321
Main Authors: Nelsen, Matthew P, Lücking, Robert, Andrew, Carrie J, Plata, Eimy Rivas, Chaves, José Luis, Cáceres, Marcela E. S, Ventura, Nohemy
Format: Article
Language:English
Subjects:
Arthoniaceae
Arthoniales
Ascomycota
Biological taxonomies
Datasets
Fungi
Lichenology
Lichens
molecular phylogeny
Ostropales
Phylogenetics
Phylogeny
Polymerase chain reaction
Taxa
tropical lichens
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Summary:The new combination Diorygma antillarum (Vain.) Nelsen, Lücking & Rivas Plata is proposed. This taxon lacks ascomata and produces unique isidia-like structures for vegetative dispersal. Its systematic position was clarified by incorporating molecular sequence data from the small subunit of the mitochondrial ribosomal DNA (mtSSU) and small and large subunits of the nuclear ribososomal DNA (nuSSU and nuLSU). Our phylogenetic hypotheses suggest this taxon is not part of Herpothallon in the class Arthoniomycetes, but is supported as a member of the genus Diorygma (Graphidaceae) in the class Lecanoromycetes. This agrees with morphological and chemical features of this species.
ISSN:0007-2745
1938-4378
DOI:10.1639/0007-2745-115.2.313