Order: Lecanorales       Family: Cladoniaceae Species: Cladonia subcervicornis Primary thallus squamulose, secondary thallus fruticose. Photos: On rocks on acidic heath. Ballingeary, Cork, SW Ireland. Often found sterile, forming dense clumps of bluntly incised grey-green squamules, the white lower surface blackened at the base. The upper surface turns apple-green when wet. When present the podetia have abruptly widening cups and dark brown apothecia. Can be very common on coastal and upland acid soils and on siliceous rocks. K+ yellow, P+ red, UV- Similar: Cladonia cervicornis is K- with smaller squamules, not blackened at base. Cladonia strepsilis, C+ fleeting bright-green, Pd+ yellow, UV+ whitish

     


Cladonia subcervicornis. Ballingeary area, Co.Cork. November 2008