LICHALP

Stereocaulon capitellatum H. Magn.

Syn.: Stereocaulon farinaceum H. Magn.

Lichenised.

Substrate: , rocks

Altitudinal range: from the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron) to the alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)

Note: a rare arctic-alpine, sorediate species with delicate pseudopodetia, cephalodia containing nostociform cyanobacteria, and granular phyllocladia soon transformed into globose soralia, containing atranorin and usually perlatolic and anziaic acids; on stones and acidic soil; in the Alps only recorded from Switzerland.