LICHALP

Diploschistes candidissimus (Kremp.) Zahlbr.

Syn.: Acrorixis actinostoma (Ach.) Trevis. var. tectorum (A. Massal.) Trevis., Diploschistes actinostoma (Ach.) Zahlbr. var. farinosus (Anzi) Zahlbr., Diploschistes calcareus (Müll. Arg.) J. Steiner, Diploschistes farinosus (Anzi) Vězda, Limboria actinostoma (Ach.) A. Massal. var. farinosa Anzi, Limboria actinostoma (Ach.) A. Massal. var. tectorum A. Massal., Limboria candidissima Kremp., Urceolaria actinostoma (Ach.) Schaer. var. tectorum (A. Massal.) Jatta

Lichenised.

Substrate: calciferous rocks

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)

Note: a species with a whitish grey, pruinose thallus, entirely immersed apothecia with punctiform discs, 4- to -8-spored asci, and medium-sized muriform ascospores; on calcareous rocks; widespread in the Mediterranean region and other parts of the world with a similar climate (e.g. Southern Australia); in the Alps only known from some southern localities, such as dry valleys.