Phylum anthocerophyta is another group and they are the hornworts. The plant body of a hornwort is a haploid gametophyte stage. This stage usually grows as a thin rosette or ribbon-like.The Anthocerotophyta are characterized by their long, horn-shaped sporophyte, from which they get their name “hornworts”. The colonies of bacteria that live the thallus of hornworts are what give it, it's distinct blue green color. Hornworts might also have slime pores which is similar to the stomata of other plants.