Title: Welcome to CK-12 Foundation | CK-12 Foundation
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Content: Whether it’s the sporophyte or gametophyte generation, individuals in the dominant generation live longer and grow larger. They are the green, photosynthetic structures that you would recognize as a fern, tree, or other plant (see Figure below ). Individuals in the nondominant generation, in contrast, may be very small and rarely seen. They may live in or on the dominant plant. The dominant generation in nonvascular plants is the gametophyte; in vascular plants, it’s the sporophyte. Why is a dominant sporophyte generation an advantage on land? All of these photos show plants of the dominant generation in their life cycle. Life Cycle of Nonvascular Plants
Nonvascular plants include mosses, liverworts, and hornworts. They are the only plants with a life cycle in which the gametophyte generation is dominant.