Title: sporophyte | Definition and Examples | Britannica
Headings: Sporophyte
Sporophyte
biology

Content: Sporophyte phase
The sporophytes of all conifers are trees or shrubs. They have a life span that ranges from a few decades to more than 5,000 years. The...
In the sporophyte phase a diploid (having two sets of chromosomes) plant body grows and eventually produces spores through meiosis. These spores divide mitotically to produce haploid (having a single set of chromosomes) gamete -producing bodies called gametophytes. The union of two gametes during fertilization produces a diploid zygote, which divides mitotically to form a new sporophyte. fern: life cycle
The life cycle of the fern. © Merriam-Webster Inc.
The character and relative extent of the two phases vary greatly among different groups of plants and algae. During the course of evolution, the sporophyte stage has become progressively increased. Thus, in the higher (i.e., vascular) plants the sporophyte is the dominant phase in the life cycle, whereas in the more primitive nonvascular plants ( bryophytes) the gametophyte remains dominant.