Dark
Light
Hammered Shield Lichen
This lichen is about to get all medieval on you.
Fruticose Lichen
If a tree had moles, the mole-hairs would be Fruticose Lichen.
British Soldier Lichen
Scanning the ground on a winter walk around the perimeter of my 'micro farm' I was immediately surprised by bright red spots on the very brown leafy and occasionally green mossy ground.