<P> All land plants have a life cycle with an alternation of generations between a diploid sporophyte and a haploid gametophyte, but in all non-vascular land plants the gametophyte generation is dominant . In these plants, the sporophytes grow from and are dependent on gametophytes for taking in water and mineral nutrients and for provision of photosynthate, the products of photosynthesis . </P> <P> Non-vascular plants include two distantly related groups: </P> <Ul> <Li> Bryophytes, an informal group that is now treated as three separate land plant Divisions, namely Bryophyta (mosses), Marchantiophyta (liverworts), and Anthocerotophyta (hornworts). In all bryophytes, the primary plants are the haploid gametophytes, with the only diploid portion being the attached sporophyte, consisting of a stalk and sporangium . Because these plants lack lignified water - conducting tissues, they can't become as tall as most vascular plants . </Li> <Li> Algae - especially the green algae . Recent studies have demonstrated that the algae consist of several unrelated groups . It turns out that the common features of living in water and photosynthesis were misleading as indicators of close relationship . Only those groups of algae included in the Viridiplantae are still considered relatives of land plants . </Li> </Ul> <Li> Bryophytes, an informal group that is now treated as three separate land plant Divisions, namely Bryophyta (mosses), Marchantiophyta (liverworts), and Anthocerotophyta (hornworts). In all bryophytes, the primary plants are the haploid gametophytes, with the only diploid portion being the attached sporophyte, consisting of a stalk and sporangium . Because these plants lack lignified water - conducting tissues, they can't become as tall as most vascular plants . </Li>

Which plants do not have tissues for conduction of food and water