Photo 59170586, (c) zaca, some rights reserved (CC BY-NC), uploaded by zaca

Attribution © zaca some rights reserved Uploaded by zaca Source BioDiversity4All Associated observations Photos / Sounds 3 photos What Arthonia atra Observer zaca Date December 28, 2019 04:08 PM GMT Place 2510 Óbidos, Portugal (Google, OSM) Date Added January 6, 2020 01:37 PM GMT Description Growing on bark. 2 IDs Research Grade View Sizes small medium large original