Photo 27691873, (c) Even Dankowicz, some rights reserved (CC BY), uploaded by Even Dankowicz

Attribution © Even Dankowicz some rights reserved Uploaded by edanko Source iNaturalist Associated observations Photos / Sounds What Smooth Sunken Disc Lichen (Aspicilia laevata) Observer edanko Date March 27, 2018 09:36 AM EDT Place 415 South St, Waltham, MA 02453, USA (Google, OSM) Date Added November 4, 2018 09:10 PM EST 3 comments 2 IDs Research Grade View Sizes small medium large original