Unusual lichen do not damage plant hosts | Mississippi State University Extension Service
Yeast emerges as hidden third partner in lichen symbiosis - Purdue University News
Lichens | Plant Disease Diagnostics Clinic
Lichen has a lot to tell you about your trees
In the Race to Live on Land, Lichens Didn't Beat Plants - The New York Times
Algae, Lichens, and Mosses on Plants | Pacific Northwest Pest Management Handbooks
Lichen Habitat
Lichens of the Arctic (U.S. National Park Service)
Mariton: I Don't Just Love'em - I Lichen - Natural Lands
Lichen - Wikipedia
Wetland Plant Series: Lichens - Phinizy Center for Water Sciences
Algae, Lichens, and Mosses on Plants | Pacific Northwest Pest Management Handbooks
What's the difference: Lichens vs. mosses | Forest Preserve District of Will County
Lichens | Ohioline
Lichens | Horticulture and Home Pest News
Lichen: Cute and fuzzy, but also a serious problem | Bladen Journal
Lichen is a natural part of the landscape
Mariton: I Don't Just Love'em - I Lichen - Natural Lands
You'll Be Lichen This Article - Field Station
LSU Garden News: Lichens can be a sign a tree or shrub is stressed | Home/Garden | theadvocate.com
Country diary: tiny shield lichen tell a big story | Plants | The Guardian
Lichen - Wikipedia
Lichen Biology
