this was about 6" in dia. and seemed to move if watched over a few days. I found it near creek access trail head no. 7.
This slime mold was growing on the under side of a burned Loblolly Pine tree.
Slime mould, small white sporangia about 1 mm width on wood. Remnant mature coastal broadleaf forest.
Found at the base of a dead coniferous tree which I think was an Eastern Pine at one point.
Imperial County, California, US
growing on alder tree
Myxogastria or myxogastrids, formerly known as Myxomycota, is a class of Mycetozoa, itself a grouping of slime moulds, that contains 5 orders, 14 families, 62 genera and 888 species. They are colloquially known as the plasmodial or acellular slime moulds.