Placopyrenium bucekii

Squamulose-areoled, saxicolous on siliceous and calcareous rocks, sometimes even on soil.
Note: squamules covered by a whitish to grey pruine, with perithecia inmersed in the squamules, simple to uni- or bi-septate spores according to the variety 13,5-17 x 5-7 micras( in var. type).
Lithology: limestone
Altitude: 830 m
Municipality: Felix