All found today, I'm getting nowhere in my attempts to identify these: -
No.1 Growing on a very rotten
Fagus Log.
Cap sizes up to about 40mm, Stipe heights about 60mm.
No.2 Growing on Rotten Log (Not Sure, but probably
Fagus).
Cap sizes up to about 75mm, Stipe lengths similar.
Both caps & stipes appeared to have a "velvety" sort of texture
No.3 Growing on same log as No.2 above.
Caps up to about 70mm across, Stipes up to 75mm in length.
No.4. Growing on same log as No. 1 above.
Unfortunately caps not yet expanded, but both caps and stipes have distinctive markings

, with stipes being quite substantial in thickness.
Largest specimen in photo about 50mm across, stipe length about 100mm.
Any thoughts on ID's much appreciated.
Regards,
Mike.