Function: noun
Date: 1854
: any of various dark leathery umbilicate foliose lichens (as of the genus Umbilicaria ) that are widely distributed on rocks in boreal and alpine areas and are sometimes used as food
Function: noun
Date: 1854
: any of various dark leathery umbilicate foliose lichens (as of the genus Umbilicaria ) that are widely distributed on rocks in boreal and alpine areas and are sometimes used as food
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012