Fol.b/ Ch/ A.i/ Epiph/ 2-3, 3-4, 3, 2-3/ Alt: 2-3/ A: a, A1: a, B: a, C: rc, D: vr, E: er, F: r, G: a, H: a/ PF: 1/ Note: a mild-temperate lichen, found on old trees (e.g. oaks, Castanea), common in the Apennines, rare in the north, and absent from urban areas.
Fol.b/ Ch/ S/ Epiph/ 2-3, 4-5, 3-4, 2-3/ Alt: 1-3/ A: a, A1: a, B: a, C: rr, D: rc, E: er, F: c, G: rc, H: rr/ PF: 1-2/ p/ Note: a mainly temperate to mediterranean early colonizer of smooth bark, most common on twigs of shrubs and deciduous trees (e.g.Prunus, Quercus).
Fol.b/ Ch/ A.i/ Epiph/ 2-3, 3-5, 3, 3/ Alt: 2-4/ A: a, A1: ec, B: a, C: rc, D: vr, E: er, F: vr, G: a, H: a/ PF: 1-3/ Note: a cool-temperate to boreal-montane, circumpolar lichen found on isolated trees, esp. on twigs and sometimes even on conifer needles, in Xanthorion communities, esp. common on twigs of Larix throughout the Alps.
Fol.b/ Ch/ A.i/ Sax/ 2, 3-4, 3, 2-3/ Alt: 4-5/ A: r, A1: rr, B: a, C: a, D: a, E: a, F: a, G: a, H: a/ PF: 1/ Note: on siliceous rocks in upland areas. This is a good species, ecologically and morphologically different from M. elegantula, it is certainly more widespread in the Alps.