Irish lichens
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Family: Squamarinaceae
Species: Squamarina cartilaginea Photos: Inland on calcareous rock. The Burren, Co. Clare, Ireland Variable, the pale yellow-green to brown-green squamules are +/- pruinose and form loose or tightly overlapping crusts. The apothecia have brown to red-brown flat or concave discs that become irregularly convex with margins +/- excluded. Asci 8-spored, spores simple, (10-)12-14(-15) x (4-)4.5-6 µm. Scattered, mainly coastal distribution in Ireland in crevices in limestone cliffs and on hard calcareous rocks, mosses and soil. Two chemotypes occur. Morphs with P+ yellow medulla appear confined to coastal sites, morphs with P- medulla also occur inland |
Squamarina cartilaginea July 2009