Can someone suggest what this might be. One or two growing on a fallen willow maximum size 1cm.

[attachment=3]IMG_8761 (2).JPG[/attachment]
Tan spores 11um different shapes in profile. Two spored basidia and lageniform cystidia some with fingers

[attachment=2]IS_141a.jpg[/attachment]

[attachment=1]IS_112a.jpg[/attachment]

[attachment=0]IS_108b.jpg[/attachment]
Thanks for your thoughts/suggestions
Mal