LICHALP

Rinodina exigua (Ach.) Gray

Syn.: Berengeria exigua (Ach.) Trevis., Lichen exiguus Ach., Psora exigua (Ach.) Nägeli, Rinodina kornhuberi Zahlbr., Rinodina metabolica auct. p.p. non (Ach.) Anzi, Rinodina ramulicola Kernst.

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 temperate species found on the smooth bark of isolated trees, more rarely on rather eutrophicated wood; common throughout the Alps.