Mycological Progress

, Volume 17, Issue 9, pp 1087–1096 | Cite as

Translucidithyrium thailandicum gen. et sp. nov.: a new genus in Phaeothecoidiellaceae

  • Xiang-Yu Zeng
  • Sinang Hongsanan
  • Kevin D. Hyde
  • Chomnunti Putarak
  • Ting-Chi WenEmail author
Original Article


A sooty blotch and flyspeck fungus with semi-transparent ascomata was discovered in northern Thailand. Its multi-loculate-like ascomata arrangement is similar to species of Lecideopsella (Schizothyriaceae), but ascomata lack a network-like arrangement. The new genus also has ascospores with appendages at both ends. Maximum parsimony, maximum likelihood, and Bayesian inference analyses of a combined ITS and partial LSU sequence dataset revealed that this new taxon is a member of the family Phaeothecoidiellaceae, but it is distinct from any other genera. Therefore, Translucidithyrium thailandicum gen. et sp. nov. is introduced here with descriptions and illustrations. The discovery of this new genus with sexual characters in Capnodiales will make contributions to the further understanding of sooty blotch and flyspeck fungal group.


Capnodiales Flyspeck New taxa Phylogeny Sooty blotch 



Xiang-Yu Zeng would like to thank Shaun Pennycook for the suggestion of the Latin diagnosis of the new genus name, and Rungtiwa Phookamsak for advice on the new species.

Funding information

This study was supported by the Science and Technology Foundation of Guizhou Province (no. [2012]3173).


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Copyright information

© German Mycological Society and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Xiang-Yu Zeng
    • 1
    • 2
  • Sinang Hongsanan
    • 2
  • Kevin D. Hyde
    • 2
    • 3
  • Chomnunti Putarak
    • 3
  • Ting-Chi Wen
    • 1
    Email author
  1. 1.The Engineering and Research Center of Southwest Bio-Pharmaceutical Resource, Ministry of EducationGuizhou UniversityGuiyangChina
  2. 2.Center of Excellence in Fungal ResearchMae Fah Luang UniversityChiang RaiThailand
  3. 3.Key Laboratory for Plant Diversity and Biogeography of East AsiaKunming Institute of Botany, Chinese Academy of SciencesKunmingChina

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