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Phylogeny and classification of Cryptodiscus, with a taxonomic synopsis of the Swedish species
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
2009 (English)In: Fungal diversity, ISSN 1560-2745, E-ISSN 1878-9129, Vol. 38, 51-68 p.Article in journal (Refereed) PublishedText
Abstract [en]

The phylogeny, taxonomy and classification of Cryptodiscus are examined. The current generic and species deliminations, and the relationship of the genus within the Ostropomycetidae, are tested by molecular phylogenetic analyses of the nuclear ITS and LSU rDNA and the mitochondrial SSU rDNA. In our new circumscription Cryptodiscus is a monophyletic group of saprotrophic and lichenized fungi characterized by small, urceolate apothecia, mostly hyaline ascomatal walls without any embedded crystals, no clear periphysoids, and with oblong to narrow-cylindrical septate ascospores. Cryptodiscus forms a well-supported clade together with Absconditella and the remaining Stictidaceae. Paschelkiella and Bryophagus are synonymised with Cryptodiscus. Species excluded from Cryptodiscus are Cryptodiscus anguillosporus, C. angulosus, C. microstomus, and C. rhopaloides. Cryptodiscus in Sweden is revised and six species are accepted, of which one is newly described: C. foveolaris, C. gloeocapsa comb. nov. (equivalent to Bryophagus gloeocapsa), C. incolor sp. nov., C. pallidus, C. pini comb. nov. (equivalent to Paschelkiella pini), and the rediscovered species C. tabularum. The additional new combinations Cryptodiscus similis comb. nov. and C. minutissimus comb. nov. are coined for the remaining former Bryophagus species. Lectotypes are designated for Bryophagus gloeocapsa Arnold, Odontotrema pini Romell and Stictis foveolaris Rehm.

Place, publisher, year, edition, pages
Kunming: Kunming university of science & technology , 2009. Vol. 38, 51-68 p.
Keyword [en]
Ascomycota, discomycetes, lichens, molecular phylogeny, Ostropomycetidae
National Category
Biological Sciences
URN: urn:nbn:se:umu:diva-115970ISI: 000271500200003OAI: diva2:907231
Available from: 2016-02-26 Created: 2016-02-08 Last updated: 2016-02-26Bibliographically approved

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