Of course, it's much easier to see red, blue and grey lichens and instantly recognize it as different to moss, but dehydrated moss can turn a similar yellow hue to some types of lichen.

The intensity of itching can vary from mild to severe in different patients ... There can be multiple types of lichen planus depending on the area affected. Lichen planus of the skin: Lichen ...

(Casey Kreider/Daily Inter Lake) Attendees look for different types of lichen during a Lichen in the Winter World walk with the Glacier Institute around Apgar in Glacier National Park on Saturday ...

TEHRAN - The presence of lichens on Iran’s historical stone carvings and ancient structures is solely due to climatic conditions and moisture, rather than industrial pollution, a prominent cultural ...