Shaggy inkcaps, one very recently emerged in a field near the canal at Compton. Another on the lawn in front of Wolverhampton College, had had just a little more time to develop.
Their caps spread a little, though they never get much wider than an “almost closed umbrella” position of the one outside the college. Then the shedding of spores, as the caps deliquesce: turning into a black slime which can be used to make a kind of ink.