Irish lichens
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Order: Lecanorales Family: Parmeliaceae
Species: Usnea articulata Long (to 1m+) grey-green thallus, pendant or scrambling. Main branches usually +/- smooth, older branches with scattered pseudocyphellae. Branches constricted to central core forming sausage-like segments. Apothecia unknown in Britain and Ireland. Often without distinct attachment, probably distributed by wind. Very sensitive to SO2 pollution. Infrequent with a very scattered distribution in Ireland on well-lit hedges and trees. K-, C-, KC-, P+ red Young specimens can resemble Usnea flammea, K+ yellow-red |
Usnea articulata November 2009