Punctelia canaliculata
The lichen was first formally described in 1914 by Norwegian botanist Bernt Arne Lynge as "Parmelia canaliculata". Hildur Krog transferred it to the newly created subgenus "Punctelia" in 1982. She noted that the lichen differed from all other species of "Punctelia" in having marginal to submarginal apothecia, many with perforated discs (mainly marginal), pycnidia immersed in the thallus, and sublinear, canaliculate lobes (with longitudinal grooves) similar to those of some "Platismatia" species. Other characteristics suggested a placement in "Punctelia", such as the form of the pseudocyphellae, the unciform (hook-like) pcynidia, and unknown fatty acids similar to those found in "Punctelia reddenda". "Punctelia canaliculata" is found in Brazil and Uruguay.
Taxonomy
Punctelia canaliculata is a species of foliose lichen in the family Parmeliaceae.