Dahlgren system

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Template:Short description One of the modern systems of plant taxonomy, the Dahlgren system was published by monocot specialist Rolf Dahlgren in 1975Template:Sfn and revised in 1977,Template:Sfn and 1980.Template:Sfn However, he is best known for his two treatises on monocotyledons in 1982 Template:Sfn and revised in 1985.Template:Sfn His wife Gertrud Dahlgren continued the work after his death.Template:Sfn

Dahlgren ranked the dicotyledons and monocotyledons as subclasses of the class of flowering plants (angiosperms) and further divided them into superorders. Originally (1975) he used the suffix -anae, as did Cronquist, to designate these, but in 1980 changed this to -florae in accordance with Thorne. In the 1989 revision, published by his wife, the alternate names Magnoliidae and Liliidae were dropped in favour of Dicotyledon and Monocotyledon, and the suffix -florae reverted to -anae (e.g. Alismatanae for Alismatiflorae).

Reveal provides an extensive listing of Dahlgren's classification.[1] (Note the synonyms, both nomenclatural and taxonomic, for each name in the system.)

1980 system

Summary

Magnoliidae (dicotyledons)

1982 system (monocotyledons)

Summary

Six superorders

Details

1985 system (monocotyledons)

Summary

Ten superorders

Details

Liliiflorae

Ariflorae

Triuridiflorae

Alismatiflorae

Bromeliiflorae

Zingiberiflorae

Commeliniflorae

Cyclanthiflorae

Areciflorae

Pandaniflorae

Notes

Template:Notelist

References

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  1. ↑ JL Reveal:Dahlgren System of Angiosperm Classification 1997

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Bibliography

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Template:List of systems of plant taxonomy

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