Climacodon septentrionalis or Laetiporus sulphureus - Sulphur Polypore

Climacodon septentrionalis or Laetiporus sulphureus - Sulphur Polypore, could definitely be confused with each other

Laetiporus sulphureus - Sulphur Polypore On Robinia

This picture is from http://en.wikipedia.org/wiki/File:Climacodon_septentrionalis_134149.jpg

see more pictures of Sulphur Polypore

To aid identification I have listed these two together as identification may be difficult from ground level especially if its a bright day.

The Climacodon septentrionalis has been inserted from wikipedia.org