About Cladonia strepsilis (Ach.) Mont.
Cladonia strepsilis, commonly called the olive cup lichen, is a cup lichen species that belongs to the family Cladoniaceae. This species can be found across Asia, Europe, and North America. In Iceland, it occurs only at a small number of sites within the country's Eastern Region, and it is classified as endangered (EN) on the Icelandic red list.