Micarea prasina s.l. forme maritime.
Micarea subvirescens (Nyl.) Hedl. ?
This form of the Micarea prasina group is characterized by its occurrence at the seaside at the base of trees or on woody debris. Very fresh its colors are bright green, its young apothecia are pale greyish and the old ones are blackish. All the spores are 1-septate.
N.B. It seems to correspond to Micarea subvirescens (Nyl.) Hedl.