A Parmelia discordans, with marginal and laminal pseudocyphellae, laminal pseudocyphellae mostly not connected with marginal ones (S F-252494) B P. omphalodes, with marginal and laminal pseudocyphellae, laminal pseudocyphellae mostly not connected with marginal ones (S F-252845) C P. pinnatifida, with marginal pseudocyphellae (UGDA L-24298) D P. pinnatifida, with marginal and laminal pseudocyphellae, laminal pseudocyphellae starting predominantly from pseudocyphellae formed at the edge of lobes (S F-239397). Scale bars: 200 μm (A, B, D), 150 μm (C).