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Hornwort

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

Bryophyta
A hornwort
A hornwort thallus close up
Scientific classification
Domain:Eukaryota
Kingdom:Plantae
Division:Bryophyta
Class:Anthocerotae
Orders
Anthocerotales
Nothothylales

Hornworts or horned liverworts are a group of non-vascular plants comprising the class Anthocerotae. Some botanists classify these plants in the Division Anthocerophyta. The common name refers to the elongated capsules (sporangia) that resemble horns.

Hornworts possess a basal meristem, and contain just one chloroplast per cell. Unlike other bryophytes, the hornworts have true stomata. The green plant body of a hornwort is the gametophyte plant. The horn-like capsule is the sporophyte, growing from an archegonium embedded deep in the gametophyte thallus.

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01-04-2007 01:18:14
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