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: APG IV, 2016: App. (p. 19).

Alternative positions

euasterids I ([unranked])	Ref: APG II, 2003: 420.
Garryales (Order) Mart. (1835)	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.
Oncothecales (Order) Doweld (2001)	Ref: A.B. Doweld, 2001: LI. [new position]
Theales (Order) Lindl. (1833)	Ref: A. Takhtajan, 1997: 165.

Historical positions

Icacinales (Order) Tiegh. (1900)	Ref: APG IV, 2016: App. (p. 19).
lamiids ([unranked])	Ref: APG III, 2009: 117.
lamiids: euasterid I ([unranked])	Ref: M.W. Chase & J.L. Reveal, 2009: 124.
Lamiids ([unranked])	Ref: D.J. Mabberley, 2008: 602, 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.
Oncothecales (Order) Doweld (2001)	Ref: A.B. Doweld, 2001: LI. [new position]
Garryales (Order) Mart. (1835)	Ref: APG, 1998: 542.
Theales (Order) Lindl. (1833)	Ref: A. Takhtajan, 1997: 165.
Theales (Order) Lindl. (1833)	Ref: G. Dahlgren, 1989a,b
Theales (Order) Lindl. (1833)	Ref: A. Cronquist, 1982: 386-387.

Number of Subtaxa

2024	Available in Systema Naturae 2000	1g;2s
1989-present	Systema Naturae 2000	1g;2s
2010	Royal Botanic Gardens, Kew & Missouri Botanical Garden: 12 Aug 2011	1g;1s
2008	D.J. Mabberley: 602	1g;2s
1997	A. Takhtajan	1g;2s
1982	A. Cronquist	1g1s