When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm ?

When and where does reduction division take place in the life cycle of a liverwort, a mass, a fern, a gymnosperm and an angiosperm ?

When and where does reduction division taked place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an as angiosperm ?