LICHALP

Calicium parvum Tibell

Lichenised.

Substrate: bark

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)

Note: a species with a thin, verruculose, grey thallus, minute epruinose apothecia, clavate asci and ascospores with polygonal, broad warts, often accompanied by conspicuous pycnidia; on bark of conifers; widespread also in the Alps, but not very common, and in the past probably confused with other species.