Lecidella scabra forme sur textile de protection des sols.

     We present here Lecidella scabra coming on a textile retaining the sand and the pebbles of a bead of pebbles subjected to marine erosion. Thallus areolate and cracked, pale greyish, covered with gray-greenish soralia, numerous apothecia, disc somewhat convex with an irregular black surface. Spores simple, ovoid, 11-15 x (5) 6-8 µm. according to our measurements. Thallus: C-, K +/- yellow, KC + yellow, P-; soralies: C + orange.