Description: Foliose lichen, attached at the centre by an umbilicus. Lobes pale or steely-grey to dark brown-grey folded or contorted the upper surface wrinkled and mottled. Undersurface pinkish to pale brown with scattered rhizinae (attachment structures) that project from the edge as a fringe of grey-black fibrils. Discs black and gyrose (like a hazelnut whirl). On course-grained siliceous rocks: mountains. Western and eastern Ireland.

Key Identification Features:

• Lobes steel-grey to dark brown on upper side, pinkish to pale-brown below
• Edges fringed with grey-black fibrils; discs gyrose.

Original text submitted by Vince J. Giavarini

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

iNaturalist: Umbilicaria cylindrica at iNaturalist World Species Observations database.