Irish lichens
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Order: Teloschistales Family: Teloschistaceae
Species: Rusavskia elegans (Xanthoria elegans) Photos: Bandon and the Beara peninsula, Co. Cork, SW Ireland Closely adpressed thallus forming dark orange to orange-red rosettes. Uniformly narrow, radiating, convex lobes, 0.5-1.0mm wide, attached to the substrate by hapters. Abundant apothecia in centre of thallus, margins +/- crenulate. Thallus K+ crimson. Occurs on nutrient-rich rocks in upland areas, also found on concrete, slate and asbestos-cement in lowland and urban areas. Scattered distribution in Ireland, mainly eastern half of country. Similar: Caloplaca saxicola has shorter, white-pruinose lobes and apothecia extending to thallus edge. |
Xanthoria elegans May 2010