Polysporangiophytes
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Polysporangiophytes, also called polysporangiates or formally Polysporangiophyta, are plants in which the spore-bearing generation (sporophyte) has branching stems (axes) that bear sporangia. The name literally means 'many sporangia plant'. The clade includes all land plants (embryophytes) except for the bryophytes (liverworts, mosses and hornworts) whose sporophytes are normally unbranched, even if a few exceptional cases occur. While the definition is independent of the presence of vascular tissue, all living polysporangiophytes also have vascular tissue, i.e., are vascular plants or tracheo
Wikidata facts
- Instance of
- taxon
- Parent taxon
- Embryophytes
- Image
- Aglaophyton reconstruction.jpg
Show 3 more facts
- taxon name
- Polysporangiophytes
- Commons category
- Polysporangiophyta
- temporal range start
- Late Ordovician
Sources (1)
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Encyclopedic overview
5 sectionsContents
- Early polysporangiophytes
- History of discovery
- Evolution
- Notes and references
- External links
Polysporangiophytes, also called polysporangiates or formally Polysporangiophyta, are plants in which the spore-bearing generation (sporophyte) has branching stems (axes) that bear sporangia. The name literally means 'many sporangia plant'. The clade includes all land plants (embryophytes) except for the bryophytes (liverworts, mosses and hornworts) whose sporophytes are normally unbranched, even if a few exceptional cases occur. While the definition is independent of the presence of vascular tissue, all living polysporangiophytes also have vascular tissue, i.e., are vascular plants or tracheophytes. Extinct polysporangiophytes are known that have no vascular tissue and so are not tracheophytes.
==Early polysporangiophytes==
Excerpted from Wikipedia’s “Polysporangiophytes” article, available under the CC BY-SA 4.0 licence.