''Cladonia peziziformis'' or the turban cup lichen
is a species of
cup lichen
A cup is an open-top used to hold hot or cold liquids for pouring or drinking; while mainly used for drinking, it also can be used to store solids for pouring (e.g., sugar, flour, grains, salt). Cups may be made of glass, metal, china, clay, ...
in the family
Cladoniaceae.
References
peziziformis
Lichen species
{{Lecanorales-stub