Parmotrema perforatum, the "perforated ruffle lichen", on a fallen hardwood branch, central Florida. This lichen is imported into Afghanistan for medicinal use. In India, it is thought to have a wide variety of healing properties.
among bioluminescent organisms, fungi are the most rare and least well understood. only 71 of the more than described fungal species emit a bioluminescent light, which, it is believed, serves to attract insects who then spread the fungal spores around