Irish lichens

Degelia plumbea
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 Ám. 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

Degelia plumbea sens str

Degelia plumbea sens str

Microscope photographs
Degelia plumbea, microscope photo

Degelia plumbea, microscope photo
Degelia plumbea sens str. November 2009

Please contact me if you find errors. All images used are copyright.