I have what I can only guess to be a fungus that has spread through the soil of my flower beds and garden. It grows several inches to over a foot below the surface. It looks like a mass of small roots, with small white tips on the ends that are growing. These ends are like beans sproats (watery) when you squeeze them but the older part of the root is solid and almost seems woody. I have never seen any sign of a fruiting body or any kind of a normal photosythesizing plant part with these root like structures. I have attached a picture. Can someone let me know what this might be and if there is a way to get rid of it and control it? Digging it up doesn't work.