LICHALP

Candelariella xanthostigma (Ach.) Lettau

Syn.: Callopisma vitellinum (Hoffm.) Mudd var. xanthostigmum (Ach.) Bagl., Caloplaca xanthostigma (Ach.) H. Olivier, Candelaria xanthostigma (Ach.) Kieff., Candelariella vitellina (Hoffm.) Müll. Arg. var. xanthostigma (Ach.) Elenkin, Lecanora citrina (Hoffm.) Ach. var. xanthostigma Ach., Lecanora vitellina (Hoffm.) Ach. var. xanthostigma (Ach.) Nyl.

Lichenised.

Substrate: bark, lignum

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 mild- to cool-temperate, perhaps holarctic species found on bark of more or less isolated trees, especially oaks, but also on conifers, much more rarely on lignum; widespread throughout the Alps.