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Dahlgren system

From Wikipedia, the free encyclopedia

One of the modern systems of plant taxonomy, the Dahlgren system was published by monocot specialist Rolf Dahlgren in 1975[1] and revised in 1977,[2] and 1980.[3] However, he is best known for his two treatises on monocotyledons in 1982 [4] and revised in 1985.[5] His wife Gertrud Dahlgren continued the work after his death.[6]

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.[7] (Note the synonyms, both nomenclatural and taxonomic, for each name in the system.)

1980 system

Summary

Magnoliidae (Dicotyledons)

1982 system (Monocotyledons)

Summary

6 Superorders

Details

1985 system (Monocotyledons)

Summary

10 superorders

Details

Liliiflorae

Ariflorae

Triuridiflorae

Alismatiflorae

Bromeliiflorae

Zingiberiflorae

Commeliniflorae

Cyclanthiflorae

Areciflorae

Pandaniflorae

Notes

References

Bibliography

Note: This is a selected list of the more influential systems. There are many other systems, for instance a review of earlier systems, published by Lindley in his 1853 edition, and Dahlgren (1982). Examples include the works of Scopoli, Batsch and Grisebach.

This page was last edited on 28 August 2017, at 11:53.
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