According to the Australian National Herbarium, whenever you see a mushroom growing from wombat dung, a puffball growing on a grassy oval or a bracket fungus growing from a gum tree – you’re seeing just the sporocarp. Out of sight there’s a mycelium in the wombat dung, under the grassy oval or in the trunk of the gum tree – secreting enzymes to break down organic matter in the dung, soil or tree trunk.