This is - I think - Metatrichia floriformis. A slime mold which forms black, shiny stalk-ball fruiting bodies (under 1mm in diamiter) which crack open to release orange, fluffy spore bearing material.
|Metatrichia floriformis sharing the undersurface of a rotten log with a pill millipede.|
|Metatrichia floriformis - fruiting bodies opening to release orange spore bearing material.|
|Metatrichia floriformis - fruiging bodies.|