LICHALP

Lepraria obtusatica Tønsberg

Lichenised.

Substrate: , bark

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: a species with a thallus which is greenish when young, turning grey-yellowish with age, with minute soredia and containing obtusatic acid as the major substance; on bark, rarely also on other substrates in shaded situations under suboceanic climates; not common throughout its distributional range, with a few records from the Alps.