A largish mushroom whose fruiting body appears in the spring – supposedly on St George’s day (which is today), though that sounds to me like the type of conceit perpetrated by Victorian gentlemen naturalists.
This one was actually pictured two days ago growing at the edge of a garden. Several others could just about be made out a few inches away, almost hidden by the greenery.
The tree stump gives some idea of the size of the mushroom’s cap.