Irish lichens

Usnea florida

Order: Lecanorales       Family: Parmeliaceae

Species: Usnea florida

Growth type fruticose. Photos: UK specimen

Dense, shrubby, +/- erect grey-green thallus, base persistly blackened. Main stems with minute papillae and numerous fibrils. Soredia and isidia absent, usually fertile with large apothecia surrounded by ray-like projections.

Found in exposed, well-lit habitats, usually on deciduous twigs and branches in the tree canopy. S, W British Isles, only scattered records for Ireland. Medulla K+ yellow, C-, KC-, P+ orange

Can be confused with fertile Usnea subfloridana


Usnea florida


Usnea florida


Usnea florida
Usnea florida November 2009

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