Kuettlingeria soralifera

The type specimen was collected near a small pond in Křivoklát, (Rakovník District, Czech Republic), at an altitude of 348 m (1,142 ft); there, it was found growing on the horizontal side of a concrete wall.

[5] This lichen has a crustose, areolate to somewhat squamulose thallus, typically dark to pale grey, and often appears whitish due to pruina.

It produces dark grey to violet-grey soralia at the margins of the areoles and squamules, which can sometimes cover the entire thallus surface.

The variability in their chemical compositions, particularly the presence or absence of specific compounds like parietin and anthraquinones, plays a significant role in differentiating them.

[1] Kuettlingeria furax: This species typically produces large lobules on the thallus surface and is delimited by conspicuous marginal lobes.

C. spalatensis is found on calcareous bird perching boulders in Mediterranean regions, contrasting with the habitat preference of C. soralifera.

It has been recorded in several European countries, including Austria, Bulgaria, the Czech Republic, Germany, Slovakia, and Romania, growing in exposed horizontal sides of structures.

Its presence has been increasing in certain areas, possibly due to expanding substrate preferences and climatic changes favouring nitrophilous and basiphilous lichens.