Hornwort

:This is an article about the non-vascular plants. The name Hornwort is also often applied to the aquatic plant Ceratophyllum demersum in the family Ceratophyllaceae

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• Anthoceros
• Dendroceros
• Folioceros
• Megaceros
• Notothylas
• Phaeoceros

Hornworts (or horned liverworts) are a group of non-vascular plants comprising the class Anthocerotae. The common name refers to the elongated horn-like structure, which is the sporophyte, growing from an archegonium embedded deep in the gametophyte thallus. The green plant body of a hornwort is the gametophyte plant.

Related Topics:
Non-vascular plant - Sporophyte - Archegonium - Gametophyte

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Hornworts possess a basal meristem and contain just one chloroplast per cell. Unlike other bryophytes, the hornworts have true stomata.

Related Topics:
Meristem - Chloroplast - Bryophytes - Stomata

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In this classification scheme, there are two orders of hornworts. Hornworts were traditionally considered a class within the Division Bryophyta, (bryophytes). However, it now appears that this group is paraphyletic, so they tend to be given their own division, called Anthocerotophyta. There is a single class, called Anthocerotopsida.

Related Topics:
Bryophyta - Bryophyte - Paraphyletic

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Hornwort: Families within Class Anthocerotopsida ►