New insights into relationships of lichen-forming Dothideomycetes
Here we continue to investigate the phylogenetic relationships of taxa ascribed to the primarily lichen-forming families Trypetheliaceae, Monoblastiaceae and Arthopyreniaceae. We demonstrate that the genera Julella and Arthopyrenia do not form monophyletic groups with taxa from these genera instead...
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Veröffentlicht in: | Fungal diversity 2011-12, Vol.51 (1), p.155-162 |
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Sprache: | eng |
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Zusammenfassung: | Here we continue to investigate the phylogenetic relationships of taxa ascribed to the primarily lichen-forming families Trypetheliaceae, Monoblastiaceae and Arthopyreniaceae. We demonstrate that the genera
Julella
and
Arthopyrenia
do not form monophyletic groups with taxa from these genera instead being placed both in Pleosporales and Trypetheliales. Within Dothideomycetes, lichen-forming species with brown ascospores are generally placed in the genera
Mycomicrothelia
,
Architrypethelium
, and
Aptrootia
in the family Trypetheliaceae. We tested the taxonomic placement of
Anisomeridium phaeospermum
, in Monoblastiaceae. This species produces brown-spores with wall ornamentation
and
therefore appears morphologically similar to
Mycomicrothelia
. Despite these morphological similarities, molecular data confirmed its placement in
Anisomeridium
. Consequently, the distinction between these two genera is in need of clarification and ascus characters are identified as the principal discriminating feature. Finally, we identify the non-lichenized taxa
Heleiosa barbatula
and
Funbolia dimorpha
as being part of the otherwise lichen-forming family Monoblastiaceae. This is confirmed by the perithecial anatomy of the sexually reproducing
Heleiosa barbatula
. |
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ISSN: | 1560-2745 1878-9129 |
DOI: | 10.1007/s13225-011-0144-7 |