Photo 129351370, (c) Sem Khatov, some rights reserved (CC BY), uploaded by Sem Khatov

Attribution © Sem Khatov some rights reserved Uploaded by semkhatov Source iNaturalist Associated observations Photos / Sounds What Stonewall Rim Lichen (Protoparmeliopsis muralis) Observer semkhatov Date May 16, 2021 02:42 PM CEST Place Westliche Vorstadt, Potsdam, Germany (Google, OSM) Date Added May 16, 2021 06:03 PM CEST 2 IDs Research Grade View Sizes small medium large original