LICHALP

Lecidea subcongrua Vain. non Nyl. nom.illeg.

Syn.: Lecidella subcongrua (“Vain.”) R. Sant. ined.

Lichenised. Poorly known taxon.

Substrate: siliceous rocks

Altitudinal distribution: subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)

Note: an arctic to temperate-alpine species of unclear relationships, perhaps belonging to Lecidella, with a usually verrucose, whitish thallus reacting K+ yellow, black, glossy, plane apothecia of medium size, initially with a thin margin, later convex and immarginate, with a pale hypothecium and a bluish-green epihymenium, tightly coherent paraphyses, and medium-sized, ellipsoid ascospores; on hard siliceous rocks in wind-exposed situations, with several records from the Eastern Alps (Austria), but not distinguished elsewhere.