Polyozosia albescens (Hoffm.) S.Y. Kondr., Lökös & Farkas forme corticole. = Myriolecis albescens

    Thallus in general clearly visible (at least towards the margin), granular, greenish gray, almost entirely covered by sessile apothecia, disc greenish-gray, celadon, gray-beige in humid weather and very rarely beige to brown this substrate (bark) always remaining a little moist, margin persistent, regular or a little wavy and crenulate, white. Comes on the bark of alignment trees in town (deciduous) where this form supports pollution. N.B. Almost always with Amandinea punctata.