
''Physcia stellaris'' is a species of lichen. It is pale grey, but darker in the centre, and lacks isidia, lobules, soredia and pruina. It tests negative with potassium hydroxide.
Similar species: Lecanorales
By Christine Young
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Uploaded May 11, 2018. Captured Apr 28, 2018 14:40 in 55 Locust St, Coventry, RI 02816, USA.