The first three Divisions in the above chart are nonvascular plants. Bryophytes need water to reproduce. They do not contain any vascular tissue for up right support. These plants usually form mats of horizontally growing tissue. Nonvascular plants that form spongy mats.
Photosynthesis occurs in the stem-like structures above the matted plant bodies.
They undergo an alternation of generations with the haploid generation being the dominant form of this cycle. These are small bundles of cells that can bounce out of cups on the surface of the gametophyte when hit by rain water. These plants resemble liverworts, but the sporophytes are horn-shaped. Their photosynthetic cells have one large chloroplast, unlike the many smaller ones of other plants. Aquatic plants used the water, it lived in, to support its structure.