The Twig Parachute Marasmiellus ramealis
This tiny mushroom (up to about the size of my smallest fingernail) grows on fallen twigs and branches on the deciduous woodland floor. We found these at the weekend.
Olympus EM-1, (aperture priority), Olympus 4/3 50mm f2 macro, 1/15 and 1/30 at f8 ISO 800, hand-held.
The stereos are crosseye.
As a bonus, there is a mirid (capsid) bug (Orthops sp?) in the first image.