Hornworts are hornworts in which the sexual structure of mosses or gametophytes is horn-shaped.
(i) Their main plants are gametophytes. It is green and flat in structure.
(ii) Their sporophytes are partially self-sustaining.
(iii) They are developed and have columnar capsules.
(iv) Their thallus is heterolateral and recumbent. The genitalia are rooted on the surface of the thallus.
(v) They are found all over the world. Their number of species is 300.
Some hornworts- Anthoceros agrestis, Phaeoceros carolinianus, Ceratophyllum pollination, Folioceros amboinensis, Dendroceros crispus, Notothylas anaporata.