There are actually many species of lichen in this image. I see Acaraspora, Rhizocarpon, Candellaria, and more. The one going from corner to corner appears to be Orange Rock Posy, but the lighting and clarity makes it kinda hard to be 100% certain. Next time, if possible, get at least one image of the species in question in an up-close image that can be included for some details that might be needed for positive ID. You can put more than one image in an observation. Try it.
Emily Shosh
2016-09-00
2016/09/10 2:29 AM CDT
United States of America, Minnesota, Grand Marais, MN 55604, USA