skull lichen

Also known as: Parmelia saxatilis

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In Parmelia
The so-called skull lichen (Parmelia saxatilis) is a common variety that grows in flat gray-brown rosettes (5 to 10 centimetres across). According to folk superstition, it was believed to be an effective treatment for epilepsy if found growing on an old skull, especially that of an executed…
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