Photo 71400572, (c) Carl-Adam Wegenschimmel, some rights reserved (CC BY-NC), uploaded by Carl-Adam Wegenschimmel

Attribution	© Carl-Adam Wegenschimmel some rights reserved
Uploaded by	carl-adam
Source	iNaturalist Canada
Associated observations	Photos / Sounds 10 photos What Wart Lichen (Verrucaria aethiobola) Observer carl-adam Date May 2, 2020 12:28 PM EDT Place Sixteen Mile Creek Trail, Oakville, ON, CA (Google, OSM) Date Added May 3, 2020 10:37 PM EDT Description On shale in flood plain, non gelatinous thallus, spores 15-20um, Periphysoids 25-35um. Thallus 130-250um thick variable. Photo 2: wet, Photo 4: semi-wet. White prothallus. 4 comments 1 ID Needs ID View
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