• Umbilicaria cylindrica (L.) Delise ex Duby
Umbilicaria cylindrica
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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 characteristics

  • 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

 Simms, M. J., (2016). Umbilicaria cylindrica (L.) Delise ex Duby. [In] LichenIreland. Accessed on 2018-08-16.