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New species of Moristroma (Ascomycetes) and phylogenetic position of the genus

Journal article
Authors Björn Nordén
Stellan Sunhede
Ellen Larsson
Published in Mycological Progress
Volume 4
Issue 4
Pages 325-332
ISSN 1617-416X
Publication year 2005
Published at Botanical Institute
Pages 325-332
Language en
Links dx.doi.org/10.1007/s11557-006-0137-...
Keywords Chaetothyriomycetes, Dothideomycetes, parsimony analysis, internal transcribed spacer, large sub-unit ,pycnidia, Quercus
Subject categories Other Biological Topics

Abstract

The loculoascomycete Moristroma quercinum sp. nov. and Moristroma japonicum sp. nov. are described from Northern Europe (Denmark, Lithuania, Sweden) and Japan, respectively. M. quercinum is reported from wood of Quercus robur and Q. petraea, and M. japonicum is reported from wood of Quercus mongolica var. grossoserrata. Ascostromata of both species were found on hard heartwood of attached or shed branches. The two new species differ from the type species of the genus, M. polysporum, by the presence of pycnidia, and by the size of ascostromata, asci and ascospores. Drawings illustrate ascostromata, pycnidia, asci, hamathecium and ascospores of the two new species. A phylogenetic analysis suggests that Moristroma belongs to the Chaetothyriomycetes, rather than to the Dothideomycetes as previously suggested

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