Net-marked parmelia (Parmelia sulcata), or shield lichen, is a foliose lichen in the family Parmeliaceae. It is very tolerant of pollution and has a cosmopolitan distribution, making it one of the most common lichens. It harbours a unicellular Trebouxia green algal symbiont.
Eversman 1994 description | Foliose on Tree Branches, Foliose on Tree Trunks/Branches |
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Substrate | trees |