A mushroom?
Generically it is called "Pin Mould".
The name of the white mushroom that grows on trees is the "oyster mushroom."
The common name for Rhizopus stolonifer is black bread mold. It is a common fungus that grows on bread and other organic materials, causing them to spoil.
Nevus
The scientific name for mildew is "Mold." It is a type of fungus that grows in damp, warm, and humid environments.
Taranaki Wool
Don't know of the name, but it sounds like a fungus... they do crazy things.
Something ugly that grows on your feet is a verruca. A verruca is a type of wart. Something else that can grow on the feet and is ugly is a bunion.
All potatoes grow underground.
There are a few things that a pilobolus can actually be. It could be a fungus or a mushroom that commonly grows on feces or it could be the name of a dance company.
It's called a Trunk...
Cryptococcus is a type of fungus that grows in culture as yeasts. It is stated that a pathologist by the name of Otto Busse first discovered it in the year 1894 after isolating it from a patient.