Conidia are nonmotile exogenous spores that develop through abstriction at the tips or sides of special hyphae called conidiophores. Conidia (singular, conidium ) are the asexual, non-motile spores of certain genera of fungi. They too are made by mitosis . Conidia are not enclosed in a protective sac like sporangiospores are. They are haploid cells that are genetically identical to the haploid parent. They develop into a new organism when conditions are favorable for growth