Contact: Dr. Steve Leavitt
Caption: The green rock-posy lichen (center right) occurs on all continents, except Australia. Traditionally, the fungal partner of this lichen was considered to be a single species, but recently genetic data revealed six distinct species sharing a similar appearance.
Credit: Dr. Steve Leavitt
Usage Restrictions: CC-BY 3.0
Related news release: Revealing hidden fungal species using DNA: The importance of recognizing cryptic diversity