LICHALP

Polyblastia evanescens Arnold

Lichenised.

Substrate: living mosses, calciferous rocks,

Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) 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: on bryophytes (Racomitrium, Distichum, Encalypta), with optimum above treeline; very rarely collected, but perhaps more widespread in the Alps.