The reproductive structure that grows above the ground in fungi is called a mushroom. Mushrooms produce spores that are dispersed into the environment to reproduce.
The structure is likely the stipe, which is the stalk or stem of the mushroom that supports the cap. It provides structural support and connects the underground mycelium with the reproductive structures above ground.
The mushroom that you see above ground is the fruiting ( flowering and spore bearing ) body of a fungus that lives under ground. Mushroom normally refers to the edible varieties, while toadstool refers to the poisonous or inedible ones.
Puffballs are a type of mushroom. They are in the fungus kingdom. Puffballs and other mushrooms grow from an underground organism. The part above ground is actually a reproductive structure designed to spread the spores.
The mushroom. The biggest component of a fungus is not what you think of as the mushroom, it's a mass of tiny strands called hyphae. It's only when the fungus is ready to reproduce that it puts up a fruiting body (what we call a mushroom).
fruiting body
yes
The cap and the stem.
pileus-fruit body
The structure you are describing sounds like a volcanic dome or plug. These are created when highly viscous magma solidifies near the surface, causing the ground above to be pushed upward. Over time, erosion may expose the magma structure, forming a mushroom shape.
It sprouts a mushroom stem and cap only to produce spores out of the gills under the cap.
The fruiting body of a club fungus, known as the mushroom, grows above the ground. It is responsible for producing and dispersing spores for reproduction.