About:
A foliose lichen with grey-green lobe, lacking in reproductive structures and the black hairs found on the margins of lobes found in others of this genus, growing up to 10-15 cm wide.
Habitat:
_P. subtinctorium can be found in Europe, Asia, Australia, and North America, residing on the bark of trees. It can found especially in the Southeast and in the Midwest of the United States.
History:
First described in 1974 by Mason E. Hale.
Structure:
This lichen has a grey-green upper surface, with a similar shape to the other lichen of Parmotrema. It has a brown lower cortex that has abundant rhizines and an upper surface with numerous insidia towards the center of growth, giving the lichen a rough appearance. The outer margins of the lobes are smoother and curled up around the edges.
_Parmotrema subtinctorium is said to contain atranorin and salazinic acid.
Fun Fact!
-The genus Parmotrema is also known as the ruffle lichens, due to their lobes having lifted edges, similar to ruffles on fabric.
Reference List:
-Parmotrema subtinctorium. Consortium of North American Lichen Herbaria. [accessed 2020 May 4]. https://lichenportal.org/cnalh/taxa/index.php?taxon=67085&clid=1103
-Parmotrema subtinctorium. Consortium of North American Lichen Herbaria. CNALH - Google Map. [accessed 2020 May 4]. https://lichenportal.org/cnalh/collections/map/googlemap.php?usethes=1&taxa=67085
-Parmotrema subtinctorium. MycoBank. [accessed 2020 May 4]. http://www.mycobank.org/BioloMICS.aspx?TableKey=14682616000000067&Rec=298731&Fields=All