Unknown purple resupinate fungus

No longer unknown but I like the title

Date observed:- 5th February 1997 Habitat:- Birch logs cut 2 months previously from recently blown down tree This is growing rapidly and more pictures will be taken Location:- Hendre Berfedd Scale:- x 0.8 Apologies to Nathan Wilson for ripping off his title Development of fungus Date:- 28th February 1997 Scale:- x 1.25 A few of the patches of fungus are developing into brackets and becoming a little paler in colour. Date:- 23rd April 1997 Drying out and turning purple/brownish. No further structural change. Now confirmed as Chondrostereum Purpureum