Informal paraphyletic group of vascular plants that reproduce by spores
Lycopodiella inundata
Scientific classification
Kingdom:
Plantae
Clade:
Tracheophytes
Division:
Pteridophyta
Included
Lycopodiophyta
Polypodiophyta
Excluded
Spermatophyta
A pteridophyte is a vascular plant (with xylem and phloem) that reproduces by means of spores. Because pteridophytes produce neither flowers nor seeds, they are sometimes referred to as "cryptogams", meaning that their means of reproduction is hidden.
Ferns, horsetails (often treated as ferns), and lycophytes (clubmosses, spikemosses, and quillworts) are all pteridophytes. However, they do not form a monophyletic group because ferns (and horsetails) are more closely related to seed plants than to lycophytes. "Pteridophyta" is thus no longer a widely accepted taxon, but the term pteridophyte remains in common parlance, as do pteridology and pteridologist as a science and its practitioner, for example by the International Association of Pteridologists and the Pteridophyte Phylogeny Group.
A pteridophyte is a vascular plant (with xylem and phloem) that reproduces by means of spores. Because pteridophytes produce neither flowers nor seeds...
study of ferns and other pteridophytes is called pteridology. A pteridologist is a specialist in the study of pteridophytes in a broader sense that includes...
The Pteridophyte Phylogeny Group (PPG) is an informal international group of systematic botanists who collaborate to establish a consensus on the classification...
cell division and growth. Fern allies Bryophytes Non-vascular plant Pteridophyte D. Edwards; Feehan, J. (1980). "Records of Cooksonia-type sporangia from...
Bernhardi to define a group of ferns he called the "Cathetogyratae"; the Pteridophyte Phylogeny Group has suggested reviving this name as the informal term...
This compares to around 12,000 species of moss and 11,000 species of pteridophytes. The APG system seeks to determine the number of families, mostly by...
Two very different circumscriptions of the genus are in use. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), Lycopodium is one of...
admissions on the island of Trinidad. Pteridophytes are vascular plants that disperse spores, such as fern spores. Pteridophyte spores are similar to pollen grains...
suborder Aspleniineae (eupolypods I) of the order Polypodiales in the Pteridophyte Phylogeny Group classification of 2016 (PPG I). (It is placed in the...
Ophioglossaceae, the adder's-tongue family, is a small family of ferns. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is the only family...
classification for extant (living) species was produced in 2016 by the Pteridophyte Phylogeny Group (PPG I), which places them all in the class Lycopodiopsida...
PMID 23557913. S2CID 959092. Sporne KR (2022). The morphology of Pteridophytes; the structure of ferns and allied plants. Legare Street Press. ISBN 978-1015505667...
endowed with 520 species of higher plants (angiosperms, gymnosperms and pteridophytes), of these 498 are flowering plants. The park has many species of medicinal...
contrasts with the pattern in all vascular plants (seed plants and pteridophytes), where the diploid sporophyte generation is dominant. Lichens may superficially...
the nation for the diversity of its flora. It is home to nearly 4,000 pteridophyte and spermatophyte plant species. Indigenous animal species in the state...
Psilotopsida. Smith et al. (2006) carried out the first higher-level pteridophyte classification published in the molecular phylogenetic era, and considered...
ecosystems, Nepal harbours 2% of the flowering plant species, 3% of pteridophytes and 6% of bryophytes. Nepal's forest cover is 59,624 km2 (23,021 sq mi)...
vascular plants. Smith et al. (2006) carried out the first higher-level pteridophyte classification published in the molecular phylogenetic era, and considered...
This is an overview of the paleoflora of the Eocene Messel Formation as explored by the Messel Pit excavations in Germany. A former quarry and UNESCO World...
four indigenous species and 60 introduced species) and 184 species of pteridophytes apart from bryophytes, lichen, fungi, algae, and bacteria. Common plant...
on land occurred during the Devonian, as free-sporing land plants (pteridophytes) began to spread across dry land, forming extensive coal forests which...
grouped all the fern subclasses together as Polypodiophyta and in 2016 the Pteridophyte Phylogeny Group (PPG) adopted the class Polypodiopsida sensu lato for...
family Dryopteridaceae, subfamily Dryopteridoideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). There are about 300-400...
Vandiemenia ratkowskiana There are 67 species and three varieties of pteridophyte assessed as critically endangered. There are 54 species and three varieties...
that were once considered coprolites, including lycopod fragments and pteridophyte spores, are later considered to be merely coexistence of plant fossils...
in South Africa, as snake grass) is an evergreen perennial herbaceous pteridophyte in the horsetail family Equisetaceae. It is native to Eurasia and Greenland...
easier than in the tropics, due to the cooler winters. Tree ferns (pteridophytes) are grown in subtropical areas, as are dracaena and yucca, and trees...
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