It was first described in 1753 by Carl Linnaeus with the name Lichen saxatilis. Erik Acharius transferred it to Parmelia in 1803. The lichen has a greenish-gray to bluish-gray thallus that can turn brown in exposed locations. It typically grows on rock, although it is sometimes found on bark or wood. Parmelia saxatilis is used to make dyes with deep red-brown and rusty-orange colors. Known as "crotal" in Scotland, it was used to dye traditional cloths including Harris tweed. A somewhat similar species with a cosmopolitan distribution is Parmelia sulcata, which generally grows on trees.
Odor:
Mildly mushroomy but not distinctive
In This Article
Attributes
Similar Species
Tips for Finding
Clean and Preserve
Common Questions
General Info About Salted shield lichen
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Attributes of Salted shield lichen
Cap
Pale gray to green-gray, blackish
Spore Print Color
White
Odor
Mildly mushroomy but not distinctive
Body Color
Brown
Green
Gray
Blue
Flesh Bruises
The flesh or milk does not discolor when bruised or cut.
You can find Salted shield lichen by these plants:
Oaks, Lindens
Species Status
Least Concern
Endangered Species
No
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Habitat of Salted shield lichen
Trees, rocks, walls
Distribution Area of Salted shield lichen
North America,Europe,Africa,Central and South America,Antarctica,Asia