A Liking for Lichens
Look, here’s some more on a rock. And on this railing. Here are some patches that look like coins. Is it alive? And what is it?
This mysterious flaky growth is lichen. Lichens can be fluffy, leafy, bumpy, frilly, powdery, jelly-like, or crusty. Some kinds hang from trees like beards. Others resemble moss, mushrooms, coral, antlers, trumpets, or octopus suckers. They come in a wide
