• Lecania hutchinsiae (Nyl.) A.L.Sm.
Lecania hutchinsiae
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(Map updated: 11 August 2009)

Long ago in the dim and distant past, lichen hunters knew this plant by the prettier name of Catillaria littorella which also gave a clue as to its habitat the seashore. Name changes can be bothersome especially when, through frequent use, they become more or less permanent mental fixtures. So look out for this lichen growing on cliffs by the sea. It is a shade species with a thin grey-green thallus as equally at home growing on brick or stone-built boundary walls as on acid to neutral sea-cliff rocks, provided the habitat is not lime rich. The key feature is the small, pale brown to pink-brown convex discs (0.3-0.6mm diam.) which can occur in good numbers, showing the full range of colour including the often piebald form. Widely distributed, though probably much under-recorded in Ireland.

Key characteristics

  • Grey-green thallus on shaded, neutral to siliceous rocks near the coast
  • Discs frequent, small, mostly convex, pale- to pink-brown; underhangs, walls shaded by overhanging vegetation.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Lecania hutchinsiae (Nyl.) A.L.Sm.. [In] LichenIreland. Accessed on 2019-01-19.