If you're ever seen a pile of white stuff on mulch, it's something called slime mold. It may look gross, but it's actually beneficial
Did the dog throw up in your mulch or is that just slime mold?
White stuff in the mulch
Slime Mold in Mulch
Fuligo septica - Wikipedia
Is this good or bad? Mold/Fungus (fungi forum at permies)
Dog Vomit Fungus
Science Lab Logo Hi-res Stock Photography And Images Alamy, 42% OFF
Slime mold looks ugly in the garden but does no harm
White foam like stuff in my vegetable garden - Ask Extension
Our new mulch has a bunch of white mold/fungus growing on it, and this morning a ton of mushrooms sprouted up. What is going on here? What can we do about it?
Blog - Birds and Blooms
Discovering Slime Molds
Home, Yard & Garden Newsletter at the University of Illinois
Is this white stuff slime mold? : r/Slimemolds
Blog - Birds and Blooms