Sidewalk Firedot Lichen Xanthocarpia feracissima (H. Magn.) Frödén, Arup & Søchting  Synonyms: Caloplaca feracissima.

There are 15 records in the project database.

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Sidewalk Firedot Lichen in Howard Co., Maryland (3/20/2011). Per Richard, it often resides on old cement or mortar. It is the reason that old sidewalks become yellow. Photo by Richard Orr. (MBP list)

Sidewalk Firedot Lichen in Worcester Co., Maryland. Photo by Lance Biechele. (MBP list)

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