Description: V. dolosa grows on shaded rocks (siliceous and calcareous) and rock fragments, often those by wooded upland streams. It has a thin, smooth thallus and small spores (13-19 x 6-9&

371;m [max.]). The spherical discs (perithecia) project upwards and are not immersed. In Ireland, the lichen is only known from County Galway.

Key Identification Features:

• Small species with a thin, smooth thallus and small spores
• The discs are protected above by a conical veil of black tissue called the involucrellum.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Verrucaria dolosa at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Verrucaria dolosa at iNaturalist World Species Observations database.