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A system of plant taxonomy, the Thorne system of plant classification was devised by the American botanist Robert F. Thorne (1920–2015) in 1968, and he continued to issue revisions over many years (1968–2007).

Some versions of the system are available online. The Bioinformatics Working Group Center for the Study of Digital Libraries at Texas A&M University lists the March 1999 version (and other classification systems). James Reveal's course lecture notes (1999) also gives an account of the Thorne system at that time, with an extensive listing of synonyms, both nomenclatural and taxonomic, for each name in the system together with several other classification systems.

For a discussion of the various suffixes used for superorders (-florae vs. -anae), see Brummitt 1992, and Thorne 1992. In this latter paper, Thorne sets out his reasons for abandoning -florae for -anae, following contemporary practice.

1968 System

Monocotyledons

Superorders

1992 System

The 1992 system lists 69 orders and 440 families

Summary

Magnoliidae

Liliidae

2007 System

The 2007 system lists 12 subclasses, 35 superorders, 87 orders, 40 suborders, and 472 families. It uses the suffixes given in the following example.

Class Magnoliopsida ("Angiospermae") - 12 subclasses

  • Subclass Magnoliidae
    • Superorder: Magnolianae
      • Order: Magnoliales
        • SubOrder: Magnoliineae
          • Family: Magnoliaceae
            • SubFamily: Magnolioideae
              • Tribe: Magnolieae
Subclasses (12)

Note: Monocotyledons are represented here by 3 separate subclasses 3–5

References

  1. ^ Thorne 1968.
  2. Thorne 1976.
  3. Thorne 1977.
  4. Thorne 1983.
  5. ^ Thorne 1992a.
  6. Thorne 1992b.
  7. Reveal 1999a.
  8. Thorne & Reveal 2007.
  9. Robert F. Thorne. 1992. Classification and Geography of Flowering Plants. Botanical Review 58: 225-348 as updated December, 1992 and March, 1999. Source for March 1999 in Reveal (1999a)
  10. Texas A&M Flowering Plant Gateway
  11. Reveal 1999b.
  12. Reveal 1999c.
  13. Brummitt 1992, pp. 770–776.
  14. Singh 2019, p. 260.

Bibliography

Works by Thorne

List of systems of plant taxonomy
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, Ventenat, Batsch and Grisebach.
Pre-Linnaean
John Ray system (1686–1704)
  • A discourse on the seeds of plants
  • Methodus plantarum nova
  • De Variis Plantarum Methodis Dissertatio Brevis
  • Methodus plantarum emendata et aucta
Pre-Darwinian
Linnaean system (1735–51)
Adanson system (1763)Familles naturelles des plantes
De Jussieu system (1789)Genera Plantarum, secundum ordines naturales disposita juxta methodum in Horto Regio Parisiensi exaratam
De Candolle system (1819–24)
Berchtold and Presl
system (1820–1823)		O Prirozenosti Rostlin
Agardh system (1825)Classes Plantarum
Gray system (1821)The Natural Arrangement of British Plants
Perleb system (1826)Lehrbuch der Naturgeschichte des Pflanzenreichs
Dumortier system (1829)Analyse des familles des plantes
Lindley system (1830–45)
  • An Introduction to the Natural System of Botany
  • The Vegetable Kingdom
Don system (1834)General History of Dichlamydious Plants.
Bentham & Hooker system
(1862–83)		Genera plantarum ad exemplaria imprimis in herbariis kewensibus servata definita.
Baillon system (1867–94)Histoire des plantes
Post-Darwinian (Phyletic)
Nineteenth century
Eichler system (1875–1886)
  • Blüthendiagramme: construirt und erläutert
  • Syllabus der Vorlesungen über Phanerogamenkunde
Engler system (1886–1924)
van Tieghem system (1891)Traité de botanique
Twentieth century
Dalla Torre & Harms
system (1900–07)		Genera Siphonogamarum, ad systema Englerianum conscripta
Warming system (1912)Haandbog i den systematiske botanik
Hallier system (1912)L'origine et le système phylétique des angiospermes
Bessey system (1915)The phylogenetic taxonomy of flowering plants
Wettstein system (1901–35)Handbuch der systematischen Botanik
Lotsy system (1907–11)Vorträge über botanische Stammesgeschichte, gehalten an der Reichsuniversität zu Leiden. Ein Lehrbuch der Pflanzensystematik.
Hutchinson system (1926–73)The families of flowering plants, arranged according to a new system based on their probable phylogeny
Calestani system (1933)Le origini e la classificazione delle Angiosperme
Kimura system (1956)Système et phylogénie des monocotyledones
Emberger system (1960)Traité de Botanique systématique
Melchior system (1964)Syllabus der Pflanzenfamilien
Takhtajan system (1966–97)
  • A system and phylogeny of the flowering plants
  • Flowering plants: origin and dispersal
  • Diversity and classification of flowering plants
Cronquist system (1968–81)
  • The evolution and classification of flowering plants
  • An integrated system of classification of flowering plants
Goldberg system (1986–89Classification, Evolution and Phylogeny of the Families of Dicotyledons
Dahlgren system (1975–85)The families of the monocotyledons: structure, evolution, and taxonomy
Thorne system (1968–2000)An updated phylogenetic classification of the flowering plants
Kubitzki system (1990–)The Families and Genera of Vascular Plants
Reveal system (1997)Reveal System of Angiosperm Classification
Angiosperm Phylogeny Group System (1998–)
See also
Plantae at Wikispecies •
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