Micro-fungi !

Whilst clearing out an old log heap in my garden, I spotted these tiny 'fungi' on a dead fruit wood branch.  Closer inspection, using my camera, revealed a whole new landscape, in miniature.

 These bowl-shaped discs, only 2-8mm (around 1/4 inch) across, I believe to be the 

somewhat dried fruiting bodies of the 'Variable Oysterling' (Crepidotus variabilis) fungus. 

Whilst less certain about these structures that look like a copse of 'miniature trees' - only 2-3mm tall! - they could be the fruiting bodies or sporocarps of a slime mould, such as Comatricha nigra.