One of the modernsystems of plant taxonomy, theDahlgren system was published bymonocot specialistRolf 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 wifeGertrud Dahlgren continued the work after his death.[6]
Dahlgren ranked thedicotyledons and monocotyledons assubclasses of the class of flowering plants (angiosperms) and further divided them intosuperorders. Originally (1975) he used thesuffix-anae, as didCronquist, to designate these, but in 1980 changed this to-florae in accordance withThorne. 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.)
Six superorders
Ten superorders
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