Mustard Lichen Pyxine sorediata (Ach.) Mont.  

There are 23 records in the project database.

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Mustard Lichen (Pyxine sorediata) on an oak branch in Worcester Co., Maryland (6/7/2013). Lance Biechele notes, "lower surface black with numerous rhizines." Photo by Lance Biechele. (MBP list)

Mustard Lichen in Anne Arundel Co., Maryland (4/11/2017). Photo by Kerry Wixted. (MBP list)

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