Umbilicaria freyi

Thallus umbilicate, diameter <10cm, upper surface pale grey, marginal schizidia to 2 mm wide; lower surface white to pale grey pink, apothecia rare. Medulla C+ and KC+ red. 




Ecology, geology: Diorites, Carboniferous-Permian
Altitude:
 1.000 m
Location: Paratge Natural d'Interès Nacional de Poblet (Conca de Barberà)
Climate: Continental Mediterranean (Tmm=11,7ºC,  600mm)
Common name: rock tripe.

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