Lichenicolous fungi on Verrucaria s. lat. in Ukraine with the description of Zwackhiomyces khodosovtsevii sp. nov. and a key to the lichenicolous fungi on Verrucaria s. lat.

Abstract

A revision of lichenicolous fungi on Verrucaria s. lat. in Ukraine is provided. As a result, 12 species of lichenicolous fungi on Verrucaria s. lat. are reported from Ukraine. Among them, Zwackhiomyces khodosovtsevii on Verrucaria cf. nigrescens is described as new to science and Lichenopeltella coppinsii on V. muralis, Stigmidium marinum on V. mucosa as well as S. rivulorum on V. dolosa, are newly reported to Ukraine. Ten species are reported from xerotic terrestrial habitats mainly from Southern Ukraine. Only Stigmidium marinum and S. rivulorum were found in a marine and freshwater habitat respectively. Toninia subfuscae should be removed from the Ukrainian list of lichenicolous fungi due to misidentification. Didymosphaeria geminella is considered as a new synonym for Polycoccum dzieduszyckii. A worldwide key for lichenicolous fungi on Verrucaria s. lat. is provided.

Notes to lichen-forming and lichenicolous fungi in Ukraine IV

“…Cl. Roux & Nav.-Ros. This rare lichenicolous fungus was found in the Mykolaiv and Zaporizhzhia regions (Khodosovtsev et al 2019a, Darmostuk & Khodosovtsev 2020, Darmostuk 2021. This record is the first for the Donetsk region.…”

New lichenicolous fungi from the Netherlands, including the descriptions of Echinothecium micareae and Lichenochora verrucariae

“…It is the first Lichenochora species reported from Verrucaria. Darmostuk (2021a) provided a worldwide key to lichenicolous fungi growing on Verrucaria, which did not include any Lichenochora species. It is easily distinguished from all other lichenicolous fungi known on Verrucaria by the perithecia containing numerous oil droplets and the broad, small, 1-septate ascospores.…”