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Buellia triphragmia var. lividescens Bagl. & Carestia  
Family: Caliciaceae
Buellia triphragmia var. lividescens image
Buellia triphragmia var. lividescens image
Buellia triphragmia var. lividescens image
Buellia triphragmia var. lividescens image
Buellia triphragmia var. lividescens image
Buellia triphragmia var. lividescens image