Mycobiology

The Korean Society of Mycology (한국균학회)
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Jejulea byssolomoides gen. et sp. nov., a Remarkable Pilocarpaceae (Lichen-Forming Ascomycetes) from Jeju Island, South Korea

  • Halda, Josef P. (Faculty of Science, University of Hradec Kralove) ;
  • Woo, Jung-Jae (Korean Lichen Research Institute, Sunchon National University) ;
  • Liu, Dong (Korean Lichen Research Institute, Sunchon National University) ;
  • Oh, Soon-Ok (Korea National Arboretum) ;
  • Joshi, Yogesh (Department of Botany, University of Rajasthan) ;
  • Hur, Jae-Seoun (Korean Lichen Research Institute, Sunchon National University)
  • Received : 2022.02.15
  • Accepted : 2022.05.19
  • Published : 2022.08.31
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Abstract

The new genus and species, Jejulea byssolomoides, is described from Jeju Island, Korea. This lichen is characterized by saxicolous, crustose, pale greenish-gray, partly finely filamentous, matt, smooth thallus, prominent convex brown to dark brown ascomata with a concolorous margin constricted at the dark brown base, 300-800 ㎛ diameter, 200-250 ㎛ high, without a distinct proper margin, adhering to the substratum ending in a minute byssoid white external part of cylindrical cells, fusiform 3-5 septate ascospores (17-23 × 4-5 ㎛). Phylogenetic analyses using ITS and mtSSU sequences place Jejulea in the Pilocarpaceae (Lecanorales). The new taxon is closely related to Byssoloma, a cosmopolitan group of foliicolous lichens, which is most diverse in the tropics. Like Byssoloma, Jejulea also forms a byssoid apothecial margin.

Keywords

Acknowledgement

The authors thank Simon O'Flynn for proofreading the text.

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