Order: Peltigerales       Family: Pannariaceae Species: Pectenia plumbea s. str (Degelia plumbea s.str) Growth type foliose. Identified by John Douglass Photos: On Oak. Tomies wood, Killarney, Co. Kerry, SW Ireland. Usually fertile, squamules present but lacks isidia. Thin lobes, bluish-grey, tinged +/- yellow-brown, network of linear maculae most noticeable towards margins. Blue-black hypothallus. Apothecia frequent, light reddish-brown. Asci 8-spored, the spores simple, colourless, 17-25 x 7-10 µm. Micrographs below. Most frequent in western Ireland on well-lit trees in un-disturbed woodland, occasional on coastal rocks. Host to Toninia plumbina Pectenia plumbea s. lat. comprises P. cyanoloma and P. plumbea Also similar: Pectenia atlantica and Pannaria rubiginosa

Microscope photographs



Pectenia plumbea sens str (Degelia plumbea sens str). November 2009