Lichens survive in a very wide range of habitats worldwide. Amazingly, more than 400 species can be found in Maryland.

There are thousands of species of lichens that grow in many different forms. Some are flat and crusty, some have leaflike ...

My tree has lost all its leaves and the bark now has some fungi growing on it? Is lichen killing my tree? Lichen (pronounced lie-ken) gets a bad rap based on its appearance alone. It has been on our ...

Lichens, which consist of a fungus and an algae or cyanobacteria growing together, are a common sight on tree trunks and other outdoor surfaces. Far from being harmful, they have a number of practical ...

I can’t say I’ve ever paid too much attention to lichen in my life or thought about it ever, but after visiting the Join the Enlichenment exhibit at the Santa Barbara Botanic Garden, lichen has been ...

Algae, lichens and moss often form green or grey, powdery or mossy, crusty growths on the stems, branches and trunks of trees and shrubs. Pictured here, lichen and moss. This dreary "gray all day" ...

Question: Please help! I just noticed that my wild plum tree in my backyard has some sort of fungus growing on it. Is there anything I can do, or is it diseased beyond repair? It was healthy this ...

Q: A fungus-like growth is all over trees in the neighborhood. It’s a pastel blue-gray-green color, sometimes flat and sometimes frilly, and it coats much of the bark on some trunks. I worry urban ...

When people notice lichens on their trees, shrubs and other plants, they become concerned that they have problems. But they shouldn’t worry, says LSU AgCenter plant scientist Raj Singh. “Lichens are ...

Q: The pictures are of a ginkgo tree that is completely covered with this fungus. It was also on our Encore azaleas and some older oak trees and other shrubs. We lost all our azaleas, some other ...

Last Saturday, we had our first snowfall signaling the arrival of winter and the end of the growing season. However, winter is the time when lichens really strut their stuff. Margaret Roach wrote in ...