Irish lichens

Herteliana gagei

Order: Lecanorales       Family: Bacidiaceae

Species: Herteliana gagei

Growth type crustose.
Photos: On rock. Killarney NP, Co. Kerry, SW Ireland.
Identified by John Douglass

The thick, smooth, greenish-white to pale blue thallus forms continuous, wide-spreading patches. Black prothallus, +/- distinct. Apothecia red-brown, convex, but often browsed by snails before maturity. Usually numerous young apothecia and pycnidia present. K+ yellow, C-, KC+ yellow, P-

Occurs on damp, siliceous rocks in sheltered, mainly oceanic, woodlands.

Similar: Lecidea phaeops. P+ yellow with immersed apothecia

Herteliana gagei

Herteliana gagei

Herteliana gagei
Herteliana gagei. November 2010

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