DigitalNatura.Org - Opegrapha calcarea Turner ex Sm (?) http://digitalnatura.org/details.php?image_id=10927 Sun, 12 Apr 2026 09:59:30 GMT http://digitalnatura.org/data/thumbnails/64/OPEG1_copia.jpg Opegrapha calcarea Turner ex Sm (?) http://digitalnatura.org/details.php?image_id=10927