Exogenous spore formation: It is the type of spore formation taking place externally or exogenously in fungus. Spores thus formed are known as exogenous spores or conidia.
Endogenous spore formation: It is type of spore formation in fungus in which the spores are produced within the sporangium ( spore-producing cells). The spores thus formed are known as endospores or endogenous spores.