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...

Bernhardi to define a group of ferns he called the "Cathetogyratae"; the Pteridophyte Phylogeny Group has suggested reviving this name as the informal term...

The Pteridophyte Phylogeny Group (PPG) is an informal international group of systematic botanists who collaborate to establish on the classification of...

6000–8000 Anthocerotophyta Hornworts 100–200 Bryophyta Mosses 12000 Pteridophytes Lycopodiophyta Clubmosses 1200 Polypodiophyta Ferns, whisk ferns & horsetails...

cell division and growth. Fern allies Bryophytes Non-vascular plant Pteridophyte D. Edwards; Feehan, J. (1980). "Records of Cooksonia-type sporangia from...

suborder Aspleniineae (eupolypods I) of the order Polypodiales in the Pteridophyte Phylogeny Group classification of 2016 (PPG I). (It is placed in the...

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...

found within a certain region. This is a list of the pteridophytes found from Sri Lanka. Pteridophytes are vascular plants which reproduce by spores. These...

Two very different circumscriptions of the genus are in use. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), Lycopodium is one of...

  Extinct in the wild (EW): 45 species   Critically endangered (CR): 5,702 species   Endangered (EN): 10,901 species   Vulnerable (VU): 9,673 species  ...

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...

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...

vascular plants. Smith et al. (2006) carried out the first higher-level pteridophyte classification published in the molecular phylogenetic era, and considered...

Osmundaceae. Smith et al. (2006), who carried out the first higher-level pteridophyte classification published in the molecular phylogenetic era, described...

contrasts with the pattern in all vascular plants (seed plants and pteridophytes), where the diploid sporophyte generation is dominant. Lichens may superficially...

in the family Thelypteridaceae, subfamily Phegopteridoideae, in the Pteridophyte Phylogeny Group classification of 2016 (PPG I). They are known collectively...

Psilotopsida. Smith et al. (2006) carried out the first higher-level pteridophyte classification published in the molecular phylogenetic era, and considered...

Clubmoss, a pteridophyte plant Spanish moss, a flowering bromeliad plant that grows hanging from tree branches Spikemoss, a pteridophyte plant Moss (language)...

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)...

Equisetum hyemale (rough horsetail) is an evergreen perennial herbaceous pteridophyte in the horsetail family Equisetaceae native to Eurasia and Greenland...

Oleandra is a genus of ferns. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is the only genus in the family Oleandraceae, which...

Gorozhankin (1848–1904) in 1876 to indicate a division including bryophytes, pteridophytes and gymnosperms in contrast to the Gynoeciatae (Angiosperms) with a...

admissions on the island of Trinidad. Pteridophytes are vascular plants that disperse spores, such as fern spores. Pteridophyte spores are similar to pollen grains...

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...

the family Polypodiaceae, subfamily Polypodioideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). It is native to tropical...

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...

late in cytokinesis. The motile, free-swimming sperm of bryophytes and pteridophytes, cycads and Ginkgo are the only cells of land plants to have flagella...