Systems of flowering plants by different authors:

1. A. Engler (last version wihout co-authors, 1909).
2. A. Heintze (1927).
   There is also a scheme of his system.
3. R. Wettstein (1935).
4. A. Cronquist (1981, 1988).
5. R. Dahlgren (1983, 1989).
   scheme of his system.
6. P. Giseke (1792).
   Small and big schemes of his system.
7. A. Goldberg (1986).
8. A. Takhtajan (1997).
   Scheme of his system, compiled by A. Shipunov.
9. A. Takhtajan (2009).
   Scheme of his system, compiled by A. Shipunov.
10. R. Thorne (Monocotyledoneae, 2002).
11. R. Thorne (Dicotyledoneae, 2000).
    Scheme of his system.
12. V. Tikhomirov (1985).

All files are ASCII (plain) texts.

See also J. Reveal pages and

APG II system of Angiospermae.