We have had some slightly damper conditions lately and this is encouraging fungi and fruit. I believe that this one is a type of Boletus parasitic boletus. There were several growing in F2. If it is this one then it could be a rare type but it is more likely to be an example of a common bolete variety. 

Surprisingly, in spite of all the dry conditions there is a damp area by the bridge in E6. it is possible that this was the site of an old pond or maybe somewhere where there is a general Drainage Direction. Whatever the reason there is a lot of earthworm worm cast activity which is very unusual bearing in mind that the rest of the soil on the park is bone dry.