Granite-speck Rim Lichen (Lecanora polytropa)

Granite-speck Rim Lichen, a reference photo — Photo: Jason Hollinger · CC BY 2.0 (licence)

Lecanora polytropa, the granite-speck rim lichen, is a species of saxicolous (rock-dwelling), crustose lichen in the family Lecanoraceae. A small, inconspicuous species that grows in the cracks of rock surfaces, it has a cosmopolitan distribution and has been recorded on all continents, including Antarctica.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Granite-speck Rim Lichen being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.

Easily confused with

Rhizoplaca opiniconensis
Glaucomaria sulphurea
Rhizoplaca subdiscrepans

Classification

Kingdom: Fungi
Phylum: Ascomycota
Class: Lecanoromycetes
Order: Lecanorales
Family: Lecanoraceae
Genus: Lecanora
Species: Lecanora polytropa

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