Concise hierarchy

(Kingdom) Plantae - (Phylum) Tracheophyta - (Class) Magnoliopsida

Subsequent positions

Magnolianae (Superorder) Takht. (1967)
Magnoliidae (Subclass) Novák ex Takht. (1967)

Subsequent entries

Aristolochiaceae (Family) Juss. (1789), nom. cons.

Current position

Aristolochianae (Superorder) Doweld (2001)

Ref: A.B. Doweld, 2001: XXV. [new position]

Alternative positions

Dicotyledones (Class)	Ref: R. van der Meijden, 1990: 30.
Magnolianae (Superorder) Takht. (1967)	Ref: A. Takhtajan, 1997: 46.
Magnoliidae (Subclass) Novák ex Takht. (1967)	Ref: A. Cronquist, 1982: 364.

Historical positions

Aristolochianae (Superorder) Doweld (2001)	Ref: A.B. Doweld, 2001: XXV. [new position]
Magnolianae (Superorder) Takht. (1967)	Ref: A. Takhtajan, 1997: 46-48.
Dicotyledones (Class)	Ref: R. van der Meijden, 1990: 30, 101.
Magnolianae (Superorder) Takht. (1967)	Ref: G. Dahlgren, 1989a,b
Dicotyledoneae (Class)	Ref: R.C. van Caenegem et al., 1979-1984
Magnoliidae (Subclass) Novák ex Takht. (1967)	Ref: A. Cronquist, 1982: 364-365.
Magnoliidae (Superorder)	Ref: L.J. Audus & V. Heywood, 1981

Number of Subtaxa

1989-present	Systema Naturae 2000	[1f;9g;~600s]
2001	A.B. Doweld: XXV	[1f]
1997	A. Takhtajan: 47	[1f;9g;~600s]
1989a,b	G. Dahlgren	[1f]
1982	A. Cronquist	1f8/10g600s
1981	L.J. Audus & V. Heywood	2f