Lichen

is a mid aged green which is named after the subtle colour of the algae that ages stone so beautifully. Available in-store and online.

Lichen – Crandall Park Trees

CU Boulder student studying benefits of lichen in home and office, College of Engineering & Applied Science

Lichen On Your Trees: Good or Bad? - LAM Tree Service - Evergreen, CO

Should You Remove Lichen from Trees? (& Other Questions)

The large and easily identified foliose lichen Lobaria pulmonaria is

Nature Moments: Lichen Partnerships - Maine Audubon

An introduction to Lichen: its diversity, beauty, and value to human society

i.guim.co.uk/img/media/7b868af357db43bbcb1777492b5

Lichen Uconnladybug's Blog

Greenshield Lichens – Hiker's Notebook

FS1205: Tree-Dwelling Lichens (Rutgers NJAES)

Gold-Eye Lichen Missouri Department of Conservation