Irish lichens

Hypotrachyna afrorevoluta

Order: Lecanorales       Family: Parmeliaceae

Species: Hypotrachyna afrorevoluta

Growth type foliose.
Photos: On Hawthorn. Ballingeary, Co. Cork, SW Ireland.
Identified by Neil Sanderson

Very similar to H. revoluta but probably more frequent with smaller lobes and a blackish lower surface. The coarser grey-green to dark grey soredia originates in marginal and laminal pustules. Apothecia are infrequent.

Probably widespread but under-recorded on the trunks and larger branches of deciduous trees.
Cortex K+ yellow, medulla K-, C+ red, KC+ red, P-, UV- or + dull orange

Similar: H. britannica. Lobes narrower, dark subterminal soredia.

Hypotrachyna afrorevoluta
Hypotrachyna afrorevoluta. Ballingeary, Co. Cork. October 2009

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