This image contains more than one lichen but it is submitted to illustrate a silver, shrubby like lichen which stands erect .
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
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The central lichens are crustose, those in the corners are foliose - leaf-like lobes which are different on the upper and lower sides.
Fruticose lichens have a shrubby or beard-like growth form. Branches are rounded or flattened, with no distinct upper and lower surfaces. Usually attached to the substrate at only one point.
For some examples see link below:
(Evernia prunastri has been included on the page of examples as it is a foliose lichen that is often confused with fruticose lichens!)
I agree with Jenny on this.
Lat/Lng: 51.7034, -2.681
OS grid ref: SO530007
Grave stone in Churchyard situated between River Wye and main Monmouth -Chepstow road