lichen
fragile / resilient (thousands of species)
considered plants about 120ish years ago
Greek the word lichen originally meant "to lick"
Romans applied lichen to ringworm
(medicinal plants)
17th century Rome - first used (lichen) for skin diseases
lichen icelandica -> in cough drops
grows in iceland & mountains
plant <- lichen -> fungi
biology <- lichenology -> mycology