Wettstein system
A system of plant taxonomy, the Wettstein system recognised the following main groups, according to Richard Wettstein's Handbuch der Systematischen Botanik (1901–1924). Synopsis Flagellatae p. 65 Myxophyta p. 69 Schizophyta Schizophyceae Schizomycetes Zygophyta Peridinieae Bacillarieae Centricae Pennatae Conjugatae Phaeophytae Rhodophyta Bangieae Florideae Euphallophyta Chlorophyceae Fungi Eumycetes Phycomycetes Ascomycetes Basidiomycetes Lichenes Ascolichenes Basidiolichenes Cormophyta Archegoniatae Bryophyta Musci Hepaticae Pteridophyta Psilophytinae Lycopodiinae Psilotinae Equisetinae Isoëtinae Filicinae Cycadofilicinae Anthophyta Gymnospermae Cycadinae Bennettitinae Cordaitinae Gingkoinae Coniferae Gnetinae Angiospermae p. 467 Dicotyledones p. 539 Choripetalae Monochlamydeae p. 540 Dialypetalae Sympetalae Monocotyledones p. 848 Flagellatae p. 65 I. phylum Schizophyta
- classis Schizophyceae
- classis Schizomycetes II. phylum Monadophyta III. phylum Myxophyta p. 69 IV. phylum Conjugatophyta V. phylum Bacillariophyta VI. phylum Conjugatae VII. phylum Rhodophyta
- classis Bangieae
- classis Florideae VIII. phylum Euthallophyta
- classis Chlorophyceae
- classis Fungi A. Eumycetes
- subclassis Phycomycetes
- subclassis Ascomycetes
- subclassis Basidiomycetes B. Lichenes
- subclassis Ascolichenes
- subclassis Basidiolichenes IX. phylum Cormophyta I. divisio Archegoniatae
- subdivisio Bryophyta
- classis Musci
- classis Hepaticae
- subdivisio Pteridophyta
- classis Psilophytinae
- classis Lycopodiinae
- classis Psilotinae
- classis Articulatae
- classis Filicinae II. divisio Anthophyta
- subdivisio Gymnospermae
- classis Pteridospermae
- classis Cycadinae
- classis Benettitinae
- classis Cordaïtinae
- classis Ginkgoinae
- classis Coniferae
- classis Gnetinae
- subdivisio Angiospermae
- classis Dicotyledones
- subclassis Choripetalae A. Monochlamideae B. Dialypetalae
- subclassis Sympetalae
- classis Monocotyledones
- subdivisio Gymnospermae
- classis Pteridospermae (fossil only)