A recently described very tiny pioneer lichen similar to the members of Micarea micrococca agg. It is a common species both in managed and old-growth forests. It occurs even in parks as a pioneer on slowly decaying hard wood of coniferous and deciduous trees, accompanied by other epixylic species of initial succession stages, such as Absconditella lignicola. Micarea pusilla is often found on the cutting surface of stumps or on wood of debarked twigs. It may be easily mistaken for juvenile stages of other members from the taxonomically challenging group M. micrococca agg. or for pale forms of M. fallax that has very similar ecological requirements.
Literature: Launis A., Malíček J., Svensson M., Tsurykau A., Sérusiaux E. & Myllys L. (2019): Sharpening species boundaries in the Micarea prasina group, with a new circumscription of the type species M. prasina. – Mycologia 111: 574–592.taxonomic classification:
All records: 83, confirmed 81. One click on a selected square displays particular record(s), including their source(s).