Nutmeg is a type of spice that is harvested from plants belonging to the Myristica genus, which has about 100 species. Nutmeg is derived from the plant seed, whilst the red membrane that coats it is made into the spice mace.
1 Additional Answer
Nutmeg is comes from a tree, The nutmeg is the actual seed that comes from the tree called Myristica. There are different species of tree that are called myristica.