Pertusaria
noun
Per·tu·sar·ia
ˌpərtəˈsa(a)rēə
: a large widely distributed genus (the type of the family Pertusariaceae) of crustose lichens that have the fruiting bodies in structures resembling knobs and that are one of the sources of litmus and archil compare roccella
Word History
Etymology
New Latin, from Latin pertusus (past participle of pertundere to bore through) + New Latin -aria