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The Division Lycopodiophyta (sometimes called Lycophyta or Lycopods) is a tracheophyte subdivision of the Kingdom Plantae. It is the oldest extant (living) vascular plant division at around 410 million years old.<ref name="isbn0-19-850065-3">{{#invoke:citation/CS1|citation |CitationClass=book }}</ref>:99 These species reproduce by shedding spores and have macroscopic alternation of generations, although some are homosporous while others are heterosporous. Members of Lycopodiophyta bear a protostele, and the sporophyte generation is dominant.<ref name="Eichhorn">Eichhorn, Evert, and Raven (2005). Biology of Plants, Seventh Edition. 381-388.</ref> They differ from all other vascular plants in having microphylls, leaves that have only a single vascular trace (vein) rather than the much more complex megaphylls found in ferns and seed plants.


Lycopodiophyta sections
Intro  Classification  Evolution  Characteristics  Gallery   References   External links  

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The Division Lycopodiophyta (sometimes called Lycophyta or Lycopods) is a tracheophyte subdivision of the Kingdom Plantae. It is the oldest extant (living) vascular plant division at around 410 million years old.<ref name="isbn0-19-850065-3">{{#invoke:citation/CS1|citation |CitationClass=book }}</ref>:99 These species reproduce by shedding spores and have macroscopic alternation of generations, although some are homosporous while others are heterosporous. Members of Lycopodiophyta bear a protostele, and the sporophyte generation is dominant.<ref name="Eichhorn">Eichhorn, Evert, and Raven (2005). Biology of Plants, Seventh Edition. 381-388.</ref> They differ from all other vascular plants in having microphylls, leaves that have only a single vascular trace (vein) rather than the much more complex megaphylls found in ferns and seed plants.


Lycopodiophyta sections
Intro  Classification  Evolution  Characteristics  Gallery   References   External links  

PREVIOUS: IntroNEXT: Classification
<<>>