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Introduction to lichens

Image
Lichens on Trees - common, easily identifiable species
high resolution poster - it can be
downloaded here

It's an A2  PDF (which is 4 times A4, but the will resize to A3 or A4).





I've found that with several difficult groups (mosses being another one), it's difficult for a novice to find a 'way in'. You're immediately plunged into the deep-end - lots of similar, hard to identify species, unfamiliar terminology and resources mainly aimed at experts. For this reason I've created a...

...Beginners Guide to Lichens

What are lichens?
Lichens are fascinating - they consist of a fungus and algae partnership. The fungus benefits from the arrangement because the algae produce food by photosynthesis. The algae benefits by being protected and anchored by the fungus.

When trying to identify a lichen, it's useful to note:

a) the form of the lichen


b) what is it growing on (the substrate)