A modern system of plant taxonomy, the Thorne system (1992) of plant classification was drawn up by the botanist Robert F. Thorne (1920- ). He replaced it in 2000 with a new system. These two systems were published in: This list of systems of plant taxonomy presents “taxonomic systems†used in plant classification. ...
R.F. Thorne (1968). "Synopsis of a putative phylogenetic classification of flowering plants". Aliso6(4): 57–66.
R.F. Thorne (1992). "Classification and geography of flowering plants". Botanical Review58: 225–348.
R.F. Thorne (1992). "An updated phylogenetic classification of the flowering plants". Aliso13: 365–389.
R.F. Thorne (2000). "The classification and geography of the flowering plants: dicotyledons of the class Angiospermae". Botanical Review66: 441–647.
The system is available online at two sites. Firstly, at the Center for the Study of Digital Libraries Texas A&M (CSDL, Texas). Secondly in the 1999 lecture notes by J.L. Reveal, at that time a professor at the Norton Brown Herbarium, University of Maryland (1, 2, 3; with an extensive listing of synonyms, both nomenclatural and taxonomic, for each name in the system). According to the latter site the main groups in the system are:
In more detail: Magnoliopsida is the botanical name for a class: this name is formed by replacing the termination -aceae in the name Magnoliaceae by the termination -opsida (Art 16 of the ICBN). ... Orders Magnoliales Laurales Piperales Aristolochiales Illiciales Nymphaeales Ranunculales Papaverales Magnoliidae is a sub-class of the Dicotyledon flowering plants in the Cronquist system. ... Liliidae is a botanical name at the rank of subclass. ...
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