If you’ve spent a lot of time outdoors in New England, you’ve likely crossed paths with, and probably stepped on, lichens.

That's a fruticose lichen. That's one that's upright. Fruticose are three dimensional," Pengel said. Enking: British soldiers is the name of a lichen? Pengel: Yep, because it has red little pegs ...

Reporting in Current Biology today (January 17), Veera Tuovinen of the University of Alberta and her colleagues describe wolf lichens (Letharia) that are made up of an alga along with three types of ...

Researchers exposed two lichen species to Mars-like atmospheric conditions for five hours—and one performed impressively.