Fruticose Lichen on tree branch
by Yvonne Johnstone
Title
Fruticose Lichen on tree branch
Artist
Yvonne Johnstone
Medium
Photograph - Photography
Description
Lichens on trees are a unique organism because they are actually a symbiotic relationship between two organisms ( fungus and algae ). Lichen on tree bark is completely harmless to the tree itself. The rhizines (similar to roots) allow them to attach to the tree but do not go deep enough to harm the tree in any way. Lichens are ancient organisms; some colonies are over 8,000 years old. There are around 1,700 species in the British Isles.
Uploaded
April 13th, 2019
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