Irish lichens

Inoderma subabietinum, Lecanactis subabietina

Order: Arthoniales       Family: Roccellaceae

Species: Inoderma subabietinum (Lecanactis subabietina)

Growth type crustose
Photos: On Holly. Glengarriff, Co. Cork, SW Ireland.

Thin whitish-grey thallus with abundant globose, white-pruinose, black pycnidia, often with extruded yellowish conidial mass. Apothecia unknown.

Found on the dry, shaded side of trunks and bases of old Oaks and other acid-barked trees. Also found on thick Ivy stems. Pycnidial pruina K+/- light yellow, C-, UV+ ice-blue, K/UV+ mauve

Similar: Lecanactis abietina, pruina C+ red,
Opegrapha vermicellifera, all chemical reactions negative

Lecanactis subabietina

Lecanactis subabietina
Inoderma subabietinum (Lecanactis subabietina) . May 2012

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