Thallus foliose, attached at a single point by a central strand (umbilicate), 3-15 cm, upper surface white-grey, when wet green-brown, with oval pustules, margins and cracks with black isidia. Apothecia very rare.
Altitude: 560 m
Climate: North coast Mediterranean climate (Tmm=14.7ºC, AT=15ºC, 485 mm)
Location: Around the Church of Santa Helena , Port de la Selva (Alt Empordà)
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