title: Parmotrema tinctorum
text: # Parmotrema tinctorum
  
  Parmotrema tinctorum is a lichen which belongs to the Parmotrema genus. The lichen is as known as the Palm Ruffle Lichen and is listed as secure by the Nature Conservatory.
  
  ## Description
  
  Grows to around 3–30 cm in diameter with board dull smooth slightly shiny gray lobes that are 10–20 mm wide. The underside is black with naked brown areas with a central collection of simple rhizines.
  
  ## Habitat and range
  
  Global distribution with a majority of samples being located in North America and Europe.
  
  ## Chemistry
  
  Compounds derived from Parmotrema tinctorum have been found to have anti-cancer properties.
  
  ## Environmental monitoring
  
  Parmotrema tinctorum has been identified and used as a candidate for monitoring air pollution.
  
  