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S. cartilaginea (var. cartilaginea) is a robust squamulose lichen of calcareous rocks, mosses and soils. The paths of limestone cliffs are a favourite habitat. The large, frosted, pale-green to yellowish-brown squamules (PD+ yellow medulla) form tight or loosely overlapping crusts. Brown, almost rimless discs when mature (3-4mm diam.) are frequent and clustered. In fact this species is not unlike a giant version of the urban roof dweller Lecanora muralis which is a useful image to have in mind when hunting it for the very first time. Scattered and local in Ireland.
Original text submitted by Vince J. Giavarini
|Simms, M. J., (2016). Squamarina cartilaginea (With.) P.James. [In] LichenIreland. |
http://www.habitas.org.uk/lichenireland/species.asp?item=19048 Accessed on 2016-08-30.