LICHALP

Vezdaea aestivalis (Ohlert) Tscherm.-Woess & Poelt

Syn.: Biatora aestivalis (Ohlert) Lindau, Catillaria byssacea Vězda, Lecidea aestivalis Ohlert, Pachyascus byssaceus (Vězda) Vězda

Lichenised.

Substrate: bark, living mosses, parasitic on other lichens, siliceous rocks, plant debris

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: a mild-temperate to Mediterranean-Atlantic, ephemeral species found on epiphytic bryophytes, mosses, plant debris, soil, much more rarely on mossy trunks of deciduous trees with a base-rich bark. Being inconspicuous, and likely to be confused with the much more common Bilimbia sabuletorum, this species might be more widespread, but is certainly not common in the Alps.