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pteridophyta

Overview page. Subjects: Plant Sciences and Forestry.

In traditional classification systems, a division of the plant kingdom that included ferns, horsetails, and clubmosses, i.e. the nonseed-bearing tracheophytes. These are now classified as...

See overview in Oxford Index

pteridophyta

Overview page. Subjects: Plant Sciences and Forestry.

In traditional classification systems, a division of the plant kingdom that included ferns, horsetails, and clubmosses, i.e. the nonseed-bearing tracheophytes. These are now classified as...

See overview in Oxford Index

Pteridophyta

Elizabeth Martin and Robert Hine.

in A Dictionary of Biology

January 2008; p ublished online January 2008 .

Reference Entry. Subjects: Biological Sciences. 36 words.

In traditional classification systems, a division of the plant kingdom that included ferns, horsetails, and clubmosses, i.e. the nonseed-bearing tracheophytes.

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Pteridophyta

Edited by Robert Hine and Elizabeth Martin.

in A Dictionary of Biology

June 2016; p ublished online September 2015 .

Reference Entry. Subjects: Biological Sciences. 37 words.

In traditional classification systems, a division of the plant kingdom that included ferns, horsetails, and clubmosses, i.e. the nonseed-bearing tracheophytes.

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Pteridophyta

Edited by Robert Hine.

in A Dictionary of Biology

April 2019; p ublished online April 2019 .

Reference Entry. Subjects: Biological Sciences. 38 words.

In traditional classification systems, a division of the plant kingdom that included ferns, horsetails, and clubmosses, i.e. the non-seed-bearing tracheophytes. In the light of recent...

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Pteridophyta

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

January 2006; p ublished online January 2006 .

Reference Entry. Subjects: Plant Sciences and Forestry. 254 words.

(pteridophytes)

A division of the plant kingdom, comprising the vascular cryptogams. They are flowerless plants exhibiting an alternation of

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Pteridophyta

Michael Allaby.

in A Dictionary of Plant Sciences

January 2012; p ublished online April 2013 .

Reference Entry. Subjects: Plant Sciences and Forestry. 261 words.

A division of the plant kingdom, comprising the vascular cryptogams. They are flowerless plants exhibiting an alternation of 2 distinct and dissimilar generations. The first is a...

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Pteridophyta

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 282 words.

A division of the plant kingdom, comprising the vascular *cryptogams. They are flowerless plants exhibiting an alternation of 2 distinct and dissimilar generations. The first is a...

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Pteridophyta

Elizabeth Martin.

in The New Oxford Dictionary for Scientific Writers and Editors

January 2009; p ublished online January 2009 .

Reference Entry. Subjects: Language Reference. 34 words.

(cap. P) 1 In traditional classifications, a division of plants comprising the classes *Filicopsida (ferns), *Sphenopsida (horsetails), *Lycopsida (clubmosses), *Psilotopsida

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Triploidy in Equisetum subgenus Hippochaete (Equisetaceae, Pteridophyta)

WILFRIED BENNERT, MARCUS LUBIENSKI, SIMONE KÖRNER and MATTHIAS STEINBERG.

in Annals of Botany

April 2005; p ublished online February 2005 .

Journal Article. Subjects: Ecology and Conservation; Evolutionary Biology; Plant Sciences and Forestry. 5506 words.

Background and Aims The genus Equisetum is cytologically uniform, having a base chromosome number of x = 108. All previously known species and hybrids that have been counted represent...

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Density Affects Gametophyte Growth and Sexual Expression of Osmunda cinnamomea (Osmundaceae: Pteridophyta)

YAO-MOAN HUANG, HSUEH-MEI CHOU and WEN-LIANG CHIOU.

in Annals of Botany

August 2004; p ublished online June 2004 .

Journal Article. Subjects: Ecology and Conservation; Evolutionary Biology; Plant Sciences and Forestry. 2065 words.

Background and aims To understand how gametophyte densities affect the sexual expression and sizes of Osmunda cinnamomea and to provide information on the density of growth needed to...

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Variation in Chromosome Numbers, CMA Bands and 45S rDNA Sites in Species of Selaginella (Pteridophyta)

ADRIANA BUARQUE MARCON, IVA CARNEIRO LEÃO BARROS and MARCELO GUERRA.

in Annals of Botany

January 2005; p ublished online November 2004 .

Journal Article. Subjects: Ecology and Conservation; Evolutionary Biology; Plant Sciences and Forestry. 3824 words.

Background and Aims Selaginella is the largest genus of heterosporous pteridophytes, but karyologically the genus is known only by the occurrence of a dysploid series of n = 7–12, and a...

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Prerelease Assessment of Impact on Biomass Production of an Invasive Weed, Lygodium microphyllum (Lygodiaceae: Pteridophyta), by a Potential Biological Control Agent, Floracarus perrepae (Acariformes: Eriophyidae)

John A. Goolsby, Ryan Zonneveld and Anne Bourne.

in Environmental Entomology

August 2004; p ublished online October 2014 .

Journal Article. Subjects: Entomology. 4010 words.

A prerelease assessment of impact by a potential biological control agent, Floracarus perrepae Knihinicki and Boczek, on the invasive weed, Lygodium microphyllum (Cav.) R. Br., was...

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prothallus

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

January 2006; p ublished online January 2006 .

Reference Entry. Subjects: Plant Sciences and Forestry. 9 words.

A fairly undifferentiated gametophyte, like those of Pteridophyta.

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prothallus

Michael Allaby.

in A Dictionary of Plant Sciences

January 2012; p ublished online April 2013 .

Reference Entry. Subjects: Plant Sciences and Forestry. 9 words.

A fairly undifferentiated gametophyte, like those of Pteridophyta.

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prothallus

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 11 words.

A fairly undifferentiated *gametophyte, like those of *Pteridophyta.

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Lycopsida

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

January 2006; p ublished online January 2006 .

Reference Entry. Subjects: Plant Sciences and Forestry. 43 words.

A subdivision of the Pteridophyta, represented today by the club mosses (families Lycopodiaceae, Selaginellaceae, and Isoetaceae),

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Lycopsida

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 50 words.

A subdivision of the *Pteridophyta, represented today by the club mosses (families *Lycopodiaceae, *Selaginellaceae, and *Isoetaceae...

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pteridophyte

in Dictionary Plus Science and Technology

P ublished online April 2016 .

Reference Entry. Subjects: Science and Mathematics. 18 words.

A vascular, non-flowering plant of the division Pteridophyta, which comprises ferns and other vascular plants.

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Pteropsida

Elizabeth Martin and Robert Hine.

in A Dictionary of Biology

January 2008; p ublished online January 2008 .

Reference Entry. Subjects: Biological Sciences. 25 words.

In older classifications, a subdivision of tracheophytes that contained the ferns and seed plants, or a class of the Pteridophyta

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ferns

Edited by Robert Hine and Elizabeth Martin.

in A Dictionary of Biology

June 2016; p ublished online September 2015 .

Reference Entry. Subjects: Biological Sciences. 167 words.

A group of some 12 000 mainly terrestrial vascular plants (see tracheophyte) traditionally classified in the phylum Pteridophyta.

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