Template:Davydov et al., 2024a
- Davydov, E.A., Ohmura, Y. & Yakovchenko, L.S. 2024. Umbilicaria ahtii – a new species of Umbilicaria subg. Papillophora from the vicinity of Helsinki with remarks on species of the Umbilicaria vellea group. The Lichenologist 56(5): 201–218. DOI: 10.1017/S0024282924000215
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