''Platismatia tuckermanii'' is a species of corticolous (bark-dwelling), foliose lichen in the family Parmeliaceae. It was first formally described as a species of ''

Cetraria ''Cetraria'' is a genus of fruticose lichens that associate with green algae as photobionts. Most species are found at high latitudes, occurring on sand or heath. Species have a characteristic "strap-like" form, with spiny lobe edges. '' Cetra ...

'' in 1843 by American botanist William Oakes. The species epithet honours lichenologist Edward Tuckerman, who collected the type specimen in Cambridge, Massachusetts, in 1838. William and

Chicita Culberson Chicita Frances Culberson (born Chicita Frances Forman, November 1, 1931 in Philadelphia, Pennsylvania) is an American lichenologist. Education She graduated with a B.S. from the University of Cincinnati in 1953, where she also met her future h ...

transferred the taxon to the genus ''

Platismatia ''Platismatia'' is genus of medium to large foliose lichens in the family Parmeliaceae. The genus is widespread and contains 11 species. They resemble many other genera of foliose lichens in the Parmeliaceae, particularly ''Parmotrema ''Parmo ...

'' in 1968. The lichen is found in Canada and the Southeastern United States. Although usually encountered growing on

conifer Conifers are a group of conifer cone, cone-bearing Spermatophyte, seed plants, a subset of gymnosperms. Scientifically, they make up the phylum, division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single ...

bark, it is also known to grow on old wooden fenceposts. It contains caperatic acid and atranorin as lichen products.

References

Parmeliaceae Lichen species Lichens described in 1843 Lichens of Canada Lichens of the Southeastern United States {{Parmeliaceae-stub