On dry, vertical or overhanging rock faces.
Soralia abundant. Apothecia very rare.
Thallus C+ red
|Tossa de Mar|
Altitude: 10 m
Location: Tossa de Mar (La Selva)
Climate: Mediterranean prelitoral north (Tmm=14,3ºC, AT=16ºC, 736mm)
|Roccella phycopsis on N-E walls of St Vicenç Church. Tossa de Mar|
|Roccella phycopsis on N-E walls of Joanàs Tower|
Comment: Roccella was used as a source of purple dye and litmus.
|Roccella phycopsis on bark of Pinus pinea|