Found these beautiful Pholiota’s growing in spruce woodchips along a maintained trail near Martin Mountain ( Slave Lake) First time I have encountered this species. Apparently they are apart of the P. spumosa goup of similar mushrooms, the main difference is the size of spores with P.subflaviida being considerable smaller. Measurement of 10 random spores fell within the range 5.5- 7.5 X 3.5-5 um compared to P. spumosa 7-9 X 4-4.5.