Timdal, E. 2017. Endocarpon crystallinum found in Crete, a window-lichen new to Europe. — Herzogia 30: 309–312.
The window-lichen Endocarpon crystallinum is reported as new to Europe from a soil crust locality in Crete, Greece. It was collected in 1988 and recently identified by its DNA barcode sequence. This is the first report of the species outside deserts of Shanxi, China.