Order: Lecanorales Family: Parmeliaceae
Species: Hypotrachyna afrorevoluta
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. Ballingeary, Co. Cork. October 2009