Mystery fungi!

Mystery fungi!

Observation - Mystery fungi!. Description: Found these today growing in and around the base of a log pile. This is the first time they have appeared in this garden, the log pile has been in situ for approx. 6/7 years. I am not sure whether the petal shape on some of the cap shapes is due to lack

Found these today growing in and around the base of a log pile. This is the first time they have appeared in this garden, the log pile has been in situ for approx. 6/7 years. I am not sure whether the petal shape on some of the cap shapes is due to lack of water or indeed the fungi is starting to break down. Any ID help would be appreciated. Have been through 600 odd page guide twice, but to no avail.