Umbilicaria propagulifera (Vainio) Llano is reported as new to Poland. A morphological description is given and its distribution in both southern and northern hemispheres is established. U. vellea var. dendrophora is considered to be a synonym. The chemistry of U. propagulifera is variable. Its affinities within the genus and its possible relationship, as a species pair, with U. cylindrica are discussed.
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