Lichenosticta antarctica sp. nov. (Lecanorales, Ascomycota) and six noteworthy lichenicolous fungi from the Sør Rondane Mountains, Dronning Maud Land, Antarctica

  • Kensuke Tadome Scientific Information, Tokyo University of Agriculture, Tokyo, Japan;
  • Yoshihito Ohmura Department of Botany, National Museum of Nature and Science, Ibaraki, Japan
  • Satoshi Imura National Institute of Polar Research, Research Organization of Information and Systems, Tokyo, Japan; and Polar Science Program, The Graduate Institute for Advanced Studies, Tokyo, Japan
DOI: https://doi.org/10.33265/polar.v45.13045
Keywords: Bryostigma cf. molendoi, Tetramelas phaeophysciae, lichen, parasite, polar regions, key

Abstract

Lichenosticta antarctica, a lichenicolous fungus, is described as a new species, collected from the Sør Rondane Mountains, inland eastern Antarctica. It is characterized by small conidiomata, irregularly branched conidiophores, chained conidiogenous cells and lacriform conidia. In addition, six other noteworthy lichenicolous fungi—Bryostigma cf. molendoi, Carbonea aggregantula, Intralichen lichenicola, Lichenoconium usneae, Muellerella pygmaea and Tetramelas phaeophysciae—are reported from the same site, representing new distribution records for inland eastern Antarctica. A new key to the known species of Lichenosticta is presented.

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Published
2026-09-23
How to Cite
Tadome , K., Ohmura , Y., & Imura , S. (2026). <em>Lichenosticta antarctica</em&gt; sp. nov. (Lecanorales, Ascomycota) and six noteworthy lichenicolous fungi from the Sør Rondane Mountains, Dronning Maud Land, Antarctica. Polar Research, 45. https://doi.org/10.33265/polar.v45.13045
Issue
Vol. 45 (2026)
Section
Research Articles
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