Glad to be of assistance. I'll let you know about reputable suppliers as I have a friend who orders some edible mushroom kits online. By the way Andy, this is Andy Rowe from the happy hometown. I like your site a lot. I got directed to it by accident when looking for info on harvesting my chilli pep...
That looks very much like Dryad's Saddle (polyporus squamosus) to me. This is a common fungus appearing on broadleaf trees from spring through to autumn. It especially favours beech, elm and sycamore. Dryad's Saddle also has a pleasant smell of flour/meal. It is edible when young and considered tast...