Concise hierarchy

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

Subsequent positions

Garryidae (Clade) Olmstead, Judd & Cantino 2007

Ref: P.D. Cantino et al., 2007: E30.

Current position

Icacinales (Order) Tiegh. (1900)

Ref: D.J. Mabberley, 2017: App. (p. 1006).

Alternative positions

Asteridae (Subclass) Takht. (1967)	Ref: D.J. Mabberley, 2008: 937. [implicit]
Celastrales (Order) Link (1829)	Ref: A. Cronquist, 1982: 426.
euasterids I ([unranked])	Ref: APG II, 2003: 420.
euasterids II ([unranked])	Ref: APG, 1998: 542.
Garryidae (Clade) Olmstead, Judd & Cantino 2007	Ref: P.D. Cantino et al., 2007: E30. [new position]
lamiids ([unranked])	Ref: M.W. Chase & J.L. Reveal, 2009: 124.

Historical positions

Icacinales (Order) Tiegh. (1900)	Ref: D.J. Mabberley, 2017: App. (p. 1006).
Icacinales (Order) Tiegh. (1900)	Ref: APG IV, 2016: App. (p. 19).
Magnoliopsida (Class) Brongn. (1843)	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 32).
lamiids ([unranked])	Ref: APG III, 2009: 116.
Euasterids I ([unranked])	Ref: T.N. Taylor et al., 2009: App. 1 (p. 1030).
lamiids: euasterid I ([unranked])	Ref: M.W. Chase & J.L. Reveal, 2009: 124.
Lamiids ([unranked])	Ref: D.J. Mabberley, 2008: 427, 937.
Garryidae (Clade) Olmstead, Judd & Cantino 2007	Ref: P.D. Cantino et al., 2007: E30. [new position]
euasterids I ([unranked])	Ref: APG II, 2003: 420.
Icacinales (Order) Tiegh. (1900)	Ref: A.B. Doweld, 2001: LI.
euasterids II ([unranked])	Ref: APG, 1998: 542.
Icacinales (Order) Tiegh. (1900)	Ref: A. Takhtajan, 1997: 351.
Cornales (Order) Link (1829)	Ref: G. Dahlgren, 1989a,b
Celastrales (Order) Link (1829)	Ref: A. Cronquist, 1982: 426.
Celastrales (Order) Link (1829)	Ref: L.J. Audus & V. Heywood, 1981

Number of Subtaxa

2025	Available in Systema Naturae 2000	43g;1s
1989-present	Systema Naturae 2000	52g;300s
2010	Royal Botanic Gardens, Kew & Missouri Botanical Garden: 12 Aug 2011	30g;139s
2008	D.J. Mabberley: 427	52g;300s
1997	A. Takhtajan	52g;400s
1982	A. Cronquist	50g400s