What are Hyphens?

Hyphae are fungal threads. The network of all these threads of a fungus is also called fungus gland or mycelium. Often the fungus gland is located underground. In truffles, the fruiting body is also underground. In mildew and, for example, gray mold (parasitic plant fungi), those fungal threads are in the host plant itself, specifically between the cells of its host. It is possible for the fungus to grow into a ring shape, called the witch’s ring. This is caused by the mycelium expanding outward and on the inside the old fungal filaments then die off, for example through autolysis.