Rooting Shank - Hymenopellis radicata - would fit well with its long stalk and elegant appearance to the GNTM (Germany next top mushroom)...
Even though in this heat would definitely be better to have a popsicle....
What's even more interesting is that he also has even so long stem in the ground, which of course you can't see....
He is uninteresting as an edible mushroom.