A Year in the Valley

A Year in the Valley

Discovering the flora and fauna in a small square of Portmellon Valley

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  • Oakmoss (Evernia prunastri)

    Oakmoss (Evernia prunastri)

    The sun was shining on Mothering Sunday, and I was down in the watermeadow heaping dead foliage on Hard Knot Pass to make it less muddy to walk on and I was spotting and snapping in Vole County, which I will post about during the week.  As I was going back up the steps under the sea buckthorns, I noticed this twig, which had fallen off the oldest tree.  It is covered with lichens.  Lichens are a curious mixture of algae and fungi living together – the algae provide the food source, and the fungi provides shelter.  It’s a deal that works for both parties and is known as symbiosis.  

    I identified Oakmoss, which is neither limited to oaks, nor a moss.  It is also known as Stag Lichen because of its antler shape and is found on twigs and small branches of both deciduous and coniferous trees all year round.  It is a grey-green colour with paler powdery-looking shade on the underside.  There were other textures of lichen on the twig as well – see picture below right.

    Daisy D

    10 March 2024
    Mosses and lichens
    Oak Moss, Stag Lichen

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  • Spotted in September
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