Question

meant by mushroom seed

Answer 1

it is called a spore,and found in yhe gills of a mushroom underneath the cap

Answer 2

Mushroom spawn is simply any substance that has been inoculated with mycelium, the vegetative growth of a fungus. Mycelium, a thread-like collection of cells, is to a mushroom like an apple tree is to an apple. ... The spawn is used to transfer mycelium onto any material from which mushrooms will grow, called a substrate.