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Tuckermannopsis americana (Spreng.) Hale, 1987

Common name Fringed Wrinkle
Code TUCKAME
Field Characters Medium-sized foliose chlorolichen. Lobes ascending, upper surface dark to olive brown. Marginal cilia common. Margins appear crisped, thallus wrinkly. Lower cortex pale to dark brown. Rhizines sparse, apothecia common, marginal and terminal on the lobes. Black pycnidia abundant, barrel-shaped, usually marginal, occasionally laminal.
Similar species & genera
Tuckermannopsis orbata: tends to be paler (especially the lower cortex), more finely divided or lobulated, medulla UV-.

Tuckermannopsis platyphylla: lacks cilia, lobes broad with wart-like tubercles and lobules, medulla UV-.

 

Ecology Twigs and branches, mostly conifer and birch. Common in the shield, boreal, foothills, and lower montane regions, rare in the parkland and grassland regions.
Chemistry Medulla with alectoronic acid (UV+ blue white, PD-, K-, KC+ pink, C-). This is the only Tuckermannopsis with a fluorescing medulla. To check it remove a small amount of cortex and check that exposed patch carefully under short-wave light.
Molecular support
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Lichens of Alberta Copyright © by Diane L. Haughland is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, except where otherwise noted.