• Collema glebulentum (Nyl. ex Cromb.) Degel.
Collema glebulentum
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(Map updated: 11 August 2009)

This little olive-green to black ‘jelly lichen’ with a thallus of 3-6cm diam. is an upland species of rather basic streams and lough margins. It is rosette-forming, with numerous lobes attaching closely to the substratum. In addition, numerous finger-like isidia form a thick stubby presence across the surface of the thallus. Discs unknown. Western Ireland.

Key characteristics

  • Small ‘jelly lichen’ of upland loughs and rivers; rosette-forming
  • Consists of numerous, tightly adpressed lobes overgrown with coralloid isidia.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Collema glebulentum (Nyl. ex Cromb.) Degel.. [In] LichenIreland. Accessed on 2019-06-25.