Perforated ruffle lichen, Parmotrema perforatum. The large yellow-tan cup-like structures are a spore-bearing surface, apothecia, each with a hole in the center, hence the name perforated. Long black cilia around the perimeter. Fascinating but also a bit creepy.

macro photo of very tiny funnel and umbrella lichen that range from a pale green to a brownish green macro photo of very tiny button shapes growing from lichen. The lichen is a pale green and the button shapes are a brownish green macro photo of very tiny button shapes growing from lichen. The lichen is a pale green and the button shapes are a dark brownish green. Black hair-like threads grow from the pale green lichen