LICHALP

Verrucaria hochstetteri Fr. subsp. rosaeformis Cl. Roux

Syn.: Verrucaria hochstetteri Fr. var. rosaeformis (Asta, Clauzade & Cl. Roux) Clauzade & Cl. Roux comb. inval., Verrucaria integra (Nyl.) Nyl. var. rosaeformis Asta, Clauzade & Cl. Roux [invalidly published, ICN Art. 40.1. + 8]

Lichenised.

Substrate: calciferous 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 calcicolous taxon peculiar in having a circum-ostiolar involucrellum shaped as a 4-lobed rosette; so far only known with certainty from the Western Alps (France).