LICHALP

Heteroplacidium zamenhofianum (Clauzade & Cl. Roux) Cl. Roux

Syn.: Dermatocarpon compactum sensu Clauzade & Rondon, Verrucaria zamenhofiana Clauzade & Cl. Roux

Lichenised.

Substrate:

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 species with a crustose, dark brown thallus with incised to sublobate areoles, growing on taxa of the Staurothele areolata-group on slightly inclined to subhorizontal surfaces of calcareous rocks in upland areas; widespread in Europe and North America, as well as in the Alps; it is easy to overlook because the thalli of host and parasite are concolorous.