Parmotrema perlatum

Parmotrema perlatum, commonly known as the Common Powdered Ruffle Lichen, is a species of lichen in the family Parmeliaceae. It is a widespread species, found in various parts of the world, including North America, Europe, and Asia.

Description

Parmotrema perlatum is a foliose lichen, meaning it has a leaf-like structure. The upper surface of the thallus is grey to greenish-grey and is covered in a fine, white powder. The lower surface is black and covered in simple or branched rhizines. The lichen produces abundant apothecia, which are flat or slightly concave, with a black disc and a thick, white pruinose margin.

Habitat and distribution

Parmotrema perlatum is a very adaptable species, able to grow on a variety of substrates including bark, wood, and rock. It is found in a wide range of habitats, from forests to urban areas. The species has a cosmopolitan distribution, being found in North America, Europe, Asia, and other parts of the world.

Uses

In some cultures, Parmotrema perlatum is used for medicinal purposes. It has been used in traditional medicine to treat various ailments, including skin diseases and respiratory problems. Some studies have also suggested that the lichen has antimicrobial properties.

Conservation

While Parmotrema perlatum is not currently considered to be at risk, like all lichens, it is sensitive to air pollution and habitat destruction. Conservation efforts for lichens generally involve protecting their habitats and reducing air pollution.

See also

• Lichen
• Parmeliaceae
• Apothecia