Nephroma laevigatum forme saxicole.

    This form differs from the type of Nephroma laevigatum corticole form, by its occurrence on mossy rocks, but also by its apothecia at the top of the erect lobes of its thallus appearing almost stipitated, its white medulla K+ purple, P-, and its smooth underside (barely tomentose at the magnifying glass) and whitish. N.B. Shares certain characters with Nephroma resupinatum and Nephroma bellum.