Until recently I hadn’t given much attention to the large Ganoderma brackets that adorn some of the trees of my local site, Hampstead Heath. I had assumed that they were all most likely to be Ganoderma australe, the Southern Bracket. At the beginning of 2016 I was asked by David Humphries, Trees Management Officer of Hampstead Heath, whether I would take a look at a collection he and a colleague had made from Quercus ilex, Holm Oak, in nearby Totteridge. He believed that it might have been