Borrer's Speckled Shield Lichen

Punctelia borreri is a species of foliose lichen in the family Parmeliaceae. It is a common and widely distributed species, occurring in tropical, subtropical, and temperate regions of Africa, Asia, Europe, North America, Oceania, and South America. The lichen typically grows on bark of deciduous trees, and less commonly on rock. Some European countries have reported increases in the geographic range or regional frequency of the lichen in recent decades, attributed alternatively to a reduction of atmospheric sulphur dioxide levels or an increase in temperatures resulting from climate change.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Borrer's Speckled Shield 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

• Punctelia subrudecta
• Punctelia caseana
• Punctelia perreticulata
• Punctelia jeckeri
• Crespoa crozalsiana
• Punctelia rudecta

Classification

Kingdom

Fungi

Phylum

Ascomycota

Class

Lecanoromycetes

Order

Lecanorales

Family

Parmeliaceae

Genus

Punctelia

Species

Punctelia borreri

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