Orange Boulder Lichen

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Porpidia flavicunda

Orange Boulder Lichen, a reference photo
Photo: Thompson Hyggen · CC0 1.0 (licence)

Porpidia flavicunda is a species of saxicolous (rock-dwelling) crustose lichen in the family Lecideaceae. This bright yellow-orange lichen forms crusty patches on siliceous rocks, bordered by distinctive narrow black lines, and is dotted with small black disc-shaped fruiting bodies. It has a circumpolar distribution across arctic and boreal regions and is among the most common lichens found growing on rocks in Iceland.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Orange Boulder 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

Classification

Kingdom
Fungi
Phylum
Ascomycota
Class
Lecanoromycetes
Order
Lecideales
Family
Lecideaceae
Species
Porpidia flavicunda

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