Rusty Firedot Lichen (Blastenia ferruginea)

Rusty Firedot Lichen, a reference photo — Photo: alan_rockefeller · CC BY 4.0 (licence)

Blastenia ferruginea is a species of corticolous (bark-dwelling), crustose lichen in the family Teloschistaceae. It has a cosmopolitan distribution.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Rusty Firedot 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

Ramboldia russula
Brigantiaea leucoxantha
Athallia pyracea
Caloplaca cerina

Classification

Kingdom: Fungi
Phylum: Ascomycota
Class: Lecanoromycetes
Order: Teloschistales
Family: Teloschistaceae
Genus: Blastenia
Species: Blastenia ferruginea

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