De Jussieu system

An early system of plant taxonomy, the de Jussieu System, is of great importance as a starting point of botanical nomenclature at the rank of family, together with Michel Adanson's Familles naturelles des plantes (1763). While Adanson introduced the concept of families, Jussieu arranged them hierarchically into Divisions, Classes and Orders (equivalent to families).

• Index: Page lxiii
• Overview: Page lxxi - Divisions and classes
• Overview: Page lxii - Classes and orders

The main groups recognized are:

• I. Acotyledones (page 1)

  Classes: 1, with as families: Fungi, Algae, Hepaticae, Musci, Filices, Najades

• II. Monocotyledones (page 21)

  Classes: 2-4

2: Stamina hypogyna (page 23)

3: Stamina perigyna (page 35)

8 Orders

11. Ordo I Palmae (page 37-40)

12. Ordo II Asparagi (pages 40-43)

13. Ordo III Junci (pages 43 - 48)

14. Ordo IV Lilia (pages 48-9)

15. Ordo V Bromeliae (pages 49-51)

16. Ordo VI Asphodeli (pages 51-53)

17. Ordo VII Narcissi (pages 54-56)

18. ordo VIII Irides (pages 57-60)

4: Stamina epigyna (page 60)

• III. Dicotyledones

  A. Monoclinae

  a) Apetalae

  Classes: 5-7

  b) Monopetalae

  Classes: 8-11

  c) Polypetalae

  Classes: 12-14

  B. Diclinae

  Classes: 15

The system was published in 1789.^[1]

(also available online at Gallica)

References

1. Jussieu, Antoine Laurent de (1789). Genera Plantarum, secundum ordines naturales disposita juxta methodum in Horto Regio Parisiensi exaratam. Paris. OCLC 5161409. Retrieved 9 January 2013.