The scanning-electron microscope was used to examine the cortical surface of 123 species of lichens in 12 genera of the lichen family Parmeliaceae. Two general types of cortex were found, one ...

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You've probably seen a lichen, even if you didn't realize it. If you've ever meandered through the forest and wondered what the crusty stuff on trees or rocks was, they're lichens, a combination of ...

Lichens are the curious result of cohabitation between algae and fungi. Biologist Frank Bungartz tells DW about his passion for lichens - and why seeing them disappear should ring alarm bells. DW: You ...

Why devote a decade to documenting the lichens of Great Smoky Mountains National Park? After nearly 100 years of study, the consensus by the 21st century was that the lichens of the Smokies were a ...

Stream in the Talamanca Mountains, Costa Rica. Cold mountain streams in the tropics have a similar species richness compared to watercourses in temperate areas of the ...

When I moved to the Ozarks for graduate school in 1989, the place terrified me. First there was the Pig Trail, which is what the locals call the stretch of highway between Alma and Fayetteville, ...

Lichens -- a combo of fungus and algae -- can grow on bare rocks, so scientists thought that lichens were some of the first organisms to make their way onto land from the water, changing the planet's ...