Now then this is a fine scollie I found on Hutton Roof on 23rd September 2018 were you can see a lot of action on the tips of the fronds of which there are 9 and each one have some sort of aberrant make up. I am reliably informed it is a "Cristatum variety" so the full title is "Asplenium Scolopendrium Cristatum" (or simply a Cristatum variety of Harts Tongue Fern. This was found recently in Pickles Wood.
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