These oyster mushrooms were growing from the sawn-off stump of a birch tree in a garden.
The soil was built up, perhaps level with my chest. That’s why these views show the undersides of the mushrooms and there are better views if the gills than the caps.
I don’t know whether it is cause or effect, but the mushrooms are sprouting from there the bark has peeled back from the stump.
Oyster mushrooms can vary in colour and be seen at any time of year.
Corrections: the stump is holly, not birch. A spore print taken from the fungus was white or cream, not lilac as it should be from the oyster fungus. The brown flecks on the upper surface aren’t what I would expect in the oyster fungus either, but I still think it must be a related species.