Irish lichens

Bacidia rubella

Order: Lecanorales       Family: Ramalinaceae

Species: Bacidia rubella

Growth type crustose.
Photos: On mature Oak. Bantry House, Co. Cork, SW Ireland.
Identified by John Douglass

Thallus yellow-green to greyish minutely granular, the granules appearing isidia-like. The sessile apothecia are flat or slightly convex, pale to dark reddish-brown. Margins usually persistent, sometimes pruinose. Pycnidia are pale pink to reddish-brown.
Chemical reactions negative.

Occurs on nutrient-rich bark on the trunks of mature trees on rich soils. Rare on sheltered walls and gravestones, absent in polluted areas.

Bacidia rubella

Bacidia rubella

Bacidia rubella
Bacidia rubella November 2009

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