Pycniospores are a type of spore found in certain species of rust fungi. They are produced in special cup-like structures called pycnia or pynidia. Almost all fungi reproduce asexually with the production of spores. Spores may be colorless, green, yellow, orange, red, brown or black.

Sporangiospores (spore:spore, angion:sac) are spores formed inside the sporangium which is a spore sac.

Conidia (singular: conidium) are spores produced at the tip of special branches called conidiophores.

Oidia (singular: oidium). In several fungi, the hyphae is often divided into a large number of short pieces by transverse walls. Each piece is able to germinate into a new body. These pieces are called oidia (small egg).

Chlamydospores (chlymus: mantle) are produced like oidia but differ from oidia in being thick walled. They are either terminal or intercalary.