Club-shaped fungus that is irregularly shaped with a black surface found growing in braodleaf woodland commonly on Sycamore.
Frequent throughout the year but mainly in Summer and Autumn.
Broadleaf woodland, mainly with Sycamore, occasionally with other trees.
The fruitbody is clavate or cylindrical, smooth or slightly downy, black and warty, narrowing slightly in to browish-black stem.
Hard and white. Taste and odour not distinctive.
The spores are significantly smaller in both length and width than Xylaria polymorpha. Ken Burgess