When: 2021-04-11

Collection location: Sewickley Heights, Pennsylvania, USA [Click for map]

Who: Ann B. (Ann F. Berger)

No specimen available

On living hardwood, Acer, I believe.


Hyphae (?) at the edges of the lichen

Proposed Names

14% (2)
Recognized by sight
91% (2)
Recognized by sight

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Add Comment
Nice observation!
By: Jason Hollinger (jason)
2021-05-11 14:59:12 CDT (-0400)

I appreciate that you included a close-up of both the center and the growing margin, as well as noting the tree species. This species does indeed like to grow on red maple! But will grow on most hardwoods in a pinch.