Peltigera leucophlebia
Encyclopedia
Peltigera leucophlebia is a lichenized fungus in the family Peltigeraceae
Peltigeraceae
The Peltigeraceae are a lichenized family of fungi in the order Peltigerales. Species of this family have a widespread distribution but are especially prevalent in temperate regions. The family contains two genera and 101 species....

. It is commonly called Ruffled Freckled Pelt. This and other species in the genus contain a green algae in the genus Coccomyxa
Coccomyxa
Coccomyxa is a genus of algae, in the family Coccomyxaceae.-Species List:* C. arvernensis* C. astericola* C. brevis* C. chodatii* C. confluens* C. corbierei* C. curvata* C. elongata* C. gloeobotrydiformis...

 and also cyanobacteria in the genus Nostoc
Nostoc
Nostoc is a genus of cyanobacteria found in a variety of environmental niches that forms colonies composed of filaments of moniliform cells in a gelatinous sheath.The name "Nostoc" was invented by Paracelsus...

 as symbionts.

The thallus of this lichen is gray or brown, but when it is wet, the bright green algae are clearly visible. The lower surface of the thallus is white.

This species is found in North America, Asia, and Europe. In North America, it is found in most of Alaska and Canada, the Great Lakes region, New England, the Rocky Mountains, and the Pacific coast.
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