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Petractis clausa (Hoffm.) Kremp.  
Family: Ramalinaceae
[Gyalecta exanthematica var. dolichospora B. de Lesd., moreGyalecta exanthematica var. exanthematica (Sm.) Fr., Gyalecta exanthemica var. dolichospora B. de Lesd., Parmelia exanthemica (Sm.) Spreng., Patellaria clausa (Hoffm.) Nägeli, Petractis clausa var. clausa (Hoffm.) Kremp., Petractis clausa var. dolichospora (B. de Lesd.) Zahlbr., Petractis exanthemica (Sm.) Fr., Secoliga exanthemica (Sm.) Norman, Thelotrema clausum (Hoffm.) Schaer., Thelotrema exanthemicum (Sm.) Ach., Urceolaria exanthemica (Sm.) Ach., Verrucaria clausa (Hoffm.) Hoffm., Volvaria clausa (Hoffm.) Trevis., Volvaria exanthemica (Sm.) DC.]
Petractis clausa image
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Petractis clausa
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