Eichler system

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A. W. Eichler

A system of plant taxonomy, the Eichler system was the first phylogenetic (phyletic) or evolutionary system.[1][2] It was developed by August W. Eichler (1839–1887), initially in his Blüthendiagramme (1875–1878) and then in successive editions of his Syllabus (1876–1890).[3][4][5] After his death his colleague Adolf Engler (1844–1930) continued its development, and it became widely accepted.

The system was based on dividing the plant kingdom into those plants with concealed reproductive organs (non-floral), the (Cryptogamae, = hidden reproduction) and those with visible reproductive organs (floral), the (Phanerogamae, = visible reproduction).[6] Moreover, Eichler was the first taxonomist to separate the Phanerogamae into Angiosperms and Gymnosperms and the former into Monocotyledonae and Dicotyledonae.[7] His primary ranks were Divisions (Abtheilung), followed by orders (Reihe).

Blüthendiagramme (1875–1878)[]

Volume I (1875)[]

Contents pp. VI–VIII
Synopsis:

  • Division I Gymnospermae p. 54
  • Division II Monocotyledoneae p. 73
  • Division III Dicotyledoneae p. 187 (part)

Volume II (1878)[]

Contents pp. V–VIII
Synopsis:

  • Division III Dicotyledoneae p. 187 (continued)

Syllabus (Fourth edition 1886)[]

The system (here taken from the 4th edition of the Syllabus, 1886) divides plants into divisions, classes and groups. Groups were further divided into orders.

  • Note: ranks translated into Latin
Adolf Engler
German Botanical Ranks
German Latin English
Abteilung divisio Division
Unterabteilung subdivisio Subdivision
Klasse classis Class
Reihe ordo Order
Unterreihe subordo Suborder
Fam. familia Family
Unterfam. subfamilia Subfamily
Gruppe tribus Tribe
Gattung genus Genus
Art species Species

Outline: p. 6.[8] Page numbers refer to text

  • A. Cryptogamae
    division I. Thallophyta
    classis I. Algae
    group I. Cyanophyceae
    group II. Diatomeae
    group III. Chlorophyceae p. 8
    group IV. Phaeophyceae
    group V. Rhodophyceae
    classis II. Fungi
    group I. Schizomycetes
    group II. Eumycetes
    group III. Lichenes
    division II. Bryophyta
    classis I. Hepaticae
    classis II. Musci
    division III. Pteridophyta p. 21
    classis I.
    classis II.
    classis III. Filicinae
  • B. Phanerogamae
    division I. Gymnospermae p. 33
    division II. Angiospermae p. 34
    classis I. Monocotyleae (7 orders) p. 34
    order I. Liliiflorae p. 34
    ordo II.
    ordo III.
    ordo IV. Glumiflorae
    ordo V. Scitamineae
    ordo VI.
    ordo VII. Helobiae
    classis II. Dicotyleae p. 39
    subclassis I. Choripetalae
    subclassis II. Sympetalae p. 58

Class Monocotyleae[]

See also[]

  • Phylogenetic system

References[]

Bibliography[]

Works by Eichler[]

  • Eichler, August W. (1875). Blüthendiagramme: construirt und erläutert. 2 vols [Floral diagrams]. Leipzig: W. Engelmann. Retrieved 17 May 2015.
  • Syllabus der Vorlesungen über Phanerogamenkunde Lipsius und Tischer, Kiel 1876.

Other[]

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