Order: Peltigerales       Family: Pannariaceae Species: Pectenia plumbea s.s (Degelia plumbea s.s) 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. Ascus 8-spored, spores simple, colourless, 17-25 x 7-10 µm. Microscope photographs below. Chemical reactions negative. Most frequent in western Ireland on well-lit trees in un-disturbed woodland, occasional on coastal rocks. Host to Toninia plumbina Similar: D. cyanoloma, D. atlantica and Pannaria rubiginosa

Microscope photographs



Degelia plumbea sens str. November 2009