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The group includes about 10,560 known extant species. Ferns are defined here in the broad sense, being all of the Polypodiopsida, comprising both the leptosporangiate ( Polypodiidae) and eusporangiate ferns, the latter group including horsetails, whisk ferns, marattioid ferns, and ophioglossoid ferns .
- Fern (Disambiguation)
Fern is the common name for plants in the class...
- Tree fern
The tree ferns are arborescent (tree-like) ferns that grow...
- Fern (Disambiguation)
Ferns are a group of about 20,000 species of plants. About 10,000 are living: they are in the division Pteridophyta. Unlike bryophytes, ferns have xylem and phloem, which makes them vascular plants. Unlike seed plants like angiosperms (flowering plants) or gymnosperms, ferns do not have seeds.
- Pteridophyta
Mar 8, 2024 · Fern, class of several thousand species of nonflowering vascular plants that reproduce by spores. Ferns have true roots, stems, and complex leaves and constitute an ancient division of plants. Learn about their physical characteristics, life cycle, genetics, evolutionary history, and classification.
A fern, or pteridophyte, is any one of a group of plants classified in the Division Pteridophyta, formerly known as Filicophyta. A fern is a vascular plant that differs from the more primitive lycophytes in having true leaves (megaphylls) and from the more advanced seed plants ( gymnosperms and angiosperms ) in lacking seeds , and instead ...
- Pteridophyta
- Plantare
Today, ferns are the second-most diverse group of vascular plants on Earth, outnumbered only by flowering plants. With around 10,500 living species (PPG 1), ferns outnumber the remaining non-flowering vascular plants (the lycophytes and gymnosperms) by a factor of 4 to 1. How did ferns become so diverse, and what are the secrets to their success?
May 14, 2018 · General characteristics. Natural history. Life cycle. Gametophyte. Sporophyte. Polyploidy. Evolution. Modern ferns. Hybridization. Psilotum and Tmesipteris. Importance to humans. Resources. Ferns are plants in the Filicinophyta phylum, also called the Pteridophyta phylum.
