https://www.tropicallichens.net/1984.html
Diploschistes actinostomus - Pictures of Tropical Lichens
The largest image collection of tropical lichens online.
diploschistespicturestropicallichens
https://bellatlas.umn.edu/taxa/index.php?tid=68128&taxauthid=1&clid=0&pid=1&lang=en&taxalimit=50&page=2
Minnesota Biodiversity Atlas - Diploschistes
minnesotabiodiversityatlasdiploschistes