LICHALP

Arthopyrenia cinereopruinosa (Schaer.) A. Massal.

Syn.: Arthopyrenia fallax (Nyl.) Arnold var. conspurcata J. Steiner, Arthopyrenia pinicola (Hepp) A. Massal., Verrucaria cinereopruinosa Schaer.

Non- or doubtfully lichenised.

Substrate: bark

Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)

Note: a temperate early coloniser of smooth bark, found especially in clearings of long-established deciduous woodlands near rivers, on young twigs of e.g. Fraxinus and Corylus; most probably non-lichenised; widespread throughout the Alps.