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Lycopodiophyta
Clubmoss Division
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Clubmosses
Spikemosses, Quillworts, Scale Trees

It is the oldest extant (living) vascular plant division at around 410 million years old, and includes some of the most "primitive" extant species.

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. 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.

The spores of Lycopodiophyta are highly flammable and so have been used in fireworks. Currently, huperzine, a chemical isolated from a Chinese clubmoss, is under investigation as a possible treatment for Alzheimer's disease.

Lycopodiophyta :
Lycopodiopsida
Isoetopsida - Quillwort Class

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Lycopodiophyta
Clubmoss Division
Polysporangiates
Multiple Spore Sub-Kingdom
Stomatophytes
Stomatophytes
Air Pores Sub-Kingdom
Embryophytes
Embryophytes
Multicellular Land Plants
Streptobionta
Streptobionta
Multicellular Plants
Plantae
Plantae
Plants
Eukaryota
Eukaryota
Cells with a Nucleus

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