A group of three very similar species with yet unresolved species boundaries. C. cervicornis and C. verticillata are known from the Czech Republic, but C. pulvinata, the third, oceanic species with psoromic acid, might also be present.
Literature: Van Herk C. M. & Aptroot A. (2003): A new status for the Western European taxa of the Cladonia cervicornis group. – Bibliotheca Lichenologica 86: 193–203.taxonomic classification:
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