An overlooked species, similar to U. subfloridana or U. glabrescens, distinguished by long elliptical, sometimes isidiate soralia, longitudinal cracks on the black thallus base and secondary metabolites in the medulla (usually salazinic and barbatic acids). In Europe, it is widely distributed and grows on deciduous and coniferous trees with acidic bark. In the Czech Republic, the species had not been distinguished for a long time and first records were published recently from young larches in the Třebíč region (Šoun et al. 2015). It has been confirmed from the Rokycany and České Budějovice regions but probably occurs elsewhere too.
Literature: Šoun J., Vondrák J. & Bouda F. (2015): Vzácné a málo známé druhy lišejníků Třebíčska a okolí. – Bryonora 56: 1–23.taxonomic classification:
All records: 6, confirmed 6. One click on a selected square displays particular record(s), including their source(s).