16th April 2018

Some colonies of Lichen are over 8,000 years old and we have at least 1,700 species in the UK, so the British Lichen Society’s ‘Next Steps Project’ which aims at helping the non-plussed like me to identify common species is really worth logging onto. I think these, from Coed Lletywalter, are from the Peltigera (leafy) and Parmelia family. A symbiotic relationship between fungi and algae, Lichens extract water and nutrients from the air, which is why they are a good indicator of air quality– in this NW Wales ancient wood they proliferate on bark, stone and ground. Conditions: Plenty of sun with a cool breeze. Temperature: Max 14 Min 9C.

Peltigera (leafy) type Lichen

Peltigera (leafy) type lichen

Parmelia type Lichen

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