Parmotrema stuppuem
species of fungus
Parmotrema stuppuem is a corticolous (bark-dwelling), foliose lichen that belongs to the large family Parmeliaceae. The lichen is commonly known as the powder-edged ruffle lichen and is listed as apparently secure by the Nature Conservancy.
Description
Parmotrema stuppuem grows to around 2–20 cm in diameter with broad, dull, smooth gray lobes that are 4–8 mm wide. The underside is black and brown with a central collection of simple rhizines.
Habitat and range
Parmotrema stuppuem has a pantropical and pantemperate distribution, and is found across North America with a majority of samples being collected in and around the Great Lakes region of the United States. In Mexico, P. stuppeum is one of the most common foliose lichens found at intermediate to fairly high elevations in the mountains. It also occurs in Europe, southern Africa, southern Asia, and Central America.
Chemistry
Antioxidants have been extracted from Parmotrema stuppuem. Additionally the lichen is a promising host for the development of antibacterial compounds.
“Parmotrema stuppuem” enters the record as species of fungus. Crown Archives preserves that source wording while asking what Parmotrema, stuppuem and species can confirm, complicate or overturn.
Why this record matters
“Parmotrema stuppuem” is worth following because a concise public description often conceals a longer documentary argument. Here, Parmotrema, stuppuem and species provides the most credible route into that argument.
Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Oct 24, 2025. The linked authority identifier is Q10620935. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Parmotrema stuppuem” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.