The basic structures of any fungus are hyphae. These go through the ground and the parts that we see grow up from the hyphae.
Most fungi are saprophytic, meaning they feed on dead organic matter.
Some are parasites, of plants and animals. Phylum Zygomycota Zygomycetes include common bread molds. They get their name from their sexual spores which are called zygospores. This phylum includes yeasts, some molds, morels, and truffles. They get their name from their sac-shaped reproductive structure, called an ascus.