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](https://denny.micro.blog/uploads/2022/9f0b8ea79b.jpg)
![macro photo of very tiny button shapes growing from lichen. The lichen is a pale green and the button shapes are a brownish green](https://denny.micro.blog/uploads/2022/2c9c6e5d5a.jpg)
![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](https://denny.micro.blog/uploads/2022/e562f39f84.jpg)