Variable Oysterling

Crepidotus variabilis is a tiny, kidney-shaped fungus that appears on dead twigs of broad-leaved trees in autumn and winter. The attachment is virtually always sessile (having no stem).
The cap is initially white, turning creamy-ochre with age. The fruitbody is nearly always laterally attached to its substrate - usually small twigs - via its cap, rather than with a stipe.
Typically 0.5 to 2cm in diameter and often slightly lobed.
The gills, which radiate from the point of attachment, are moderately crowded. White at first, they gradually turn yellow-brown or buff.
Almost invariably it has no stipe at all.
Season autumn to early winter. Common. Not edible.