Brown-black foliose lichen

Brown-black foliose lichen

Observation - Brown-black foliose lichen. Description: Brown-black foliose lichen growing on almost horizontal limestone surface. Isidia spheres on lobes. Bulges on surfaces of outer lobes. Possibly Collema fuscovirens.

Brown-black foliose lichen growing on almost horizontal limestone surface. Isidia spheres on lobes. Bulges on surfaces of outer lobes. Possibly Collema fuscovirens.