About: Bulbothrix cinerea
Bulbothrix cinerea is a species of lichenized fungi within the family Parmeliaceae. Among other Bulbothrix species, only has isidia combined with an underside that is light coloured. B. isidiza's laciniae are wider, while its thallus is pale, and contains salazinic acid. In turn, is larger and a black underside and rhizinae. The African species is an obligately saxicolous lichen, and while similar, it has a dark underside and produces salazinic acid in its medulla. The species' name thus refers to its uncommon dark gray colouration of its thallus.
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