Irish lichens

Trapeliopsis granulosa

Order: Agyriales       Family: Agyriaceae

Species: Trapeliopsis granulosa

Growth type crustose. Provisional identification, needs confirming
Photos: On Ash. Maughnasilly, Kealkil, Co. Cork, SW Ireland.

Thallus forms small or larger, spreading patches of whitish, pale-grey or greenish-grey crowded granules or warted areoles. Large granular soralia are usually present, whitish or creamy-yellow. Apothecia are frequent, discs variable in colour, pale pink to red-brown, greenish or piedbald.

Pioneer species on burnt heathland, often with Placynthiella species. Also found on acidic moorland soils, decaying mosses and tree stumps. Rare on shaded acidic rocks.
Thallus K-, C+ red, KC+ red, P-, UV+ whitish

Similar: Trapeliopsis flexuosa, smaller ascospores.

Trapeliopsis granulosa
Trapeliopsis granulosa March 2010

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