LICHALP

Scytinium cretaceum (Sm.) ined. comb. ad int.

Syn.: Leptogium cretaceum (Sm.) Nyl., Lichen cretaceus Sm., Polychidium cretaceum (Sm.) Trevis.

Lichenised. Poorly known taxon.

Substrate: calciferous rocks

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)

Note: closely related to S. biatorinum, but thallus more granular; the status of this taxon is still poorly understood; over calcareous rocks in rather dry situations; from the Alps there are a few records only, all in need of critical evaluation.