Chrysothrix onokoensis

Chrysothrix onokoensis is a species of crustose lichen in the family Chrysotrichaceae. Originally described as an alga by Francis Wolle in 1877, it was recognized as a lichen by Asa Gray shortly after, but not formally reclassified until 2008. This distinctive bright yellow to yellow-green lichen forms loosely attached, irregularly spreading patches on rock surfaces, primarily shaded sandstone. It has a somewhat disjunct distribution in the eastern United States, with most collections coming from the Ozark–St....