Mushrooms pop up in the most unlikely places, at the most unlikely times.
I found this rarity, Clathrus ruber, on the orchard lawn yesterday. It's not a particularly good example, so I've added a stock photo as well (below).
This intriguing mushroom is sometimes known as Red Cage, or the Latticed Stinkhorn, or even the Basket Stinkhorn.
No-one seems to know if it's edible or not, on account of its terrible pong!
Best left in situ, methinks!