
''Lecanora thysanophora'' is an eastern North American lichen in the family Lecanoraceae. It is a common crustose species, easily recognized by its sorediate thallus, usually encircled by a grey prothallus.
Similar species: Lecanorales
By Christine Young
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Uploaded Apr 12, 2019. Captured Jan 16, 2019 15:13 in 5 East St, New Milford, CT 06776, USA.