LICHALP

Pannaria hookeri (Borrer ex Sm.) Nyl.

Syn.: Lichen hookeri Borrer ex Sm., Pannaria glacialis Anzi, Pannaria leucolepis (Wahlenb.) Nyl.

Lichenised.

Substrate: intermediate rocks (such as calciferous schists), siliceous rocks, calciferous soil

Altitudinal range: from the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron) to the nival belt (above the lower limit of perennial snow and glaciers)

Note: on slightly calciferous soil (mostly deriving from metamorphic rocks) in sites with periodical water seepage, sometimes also directly on rock, with optimum near treeline; widespread, but generally not common in the Alps.