Concise hierarchy

(Kingdom) Plantae - (Phylum) Tracheophyta - (Class) Polypodiopsida - (Order) Ophioglossales

Current position

Ophioglossales (Order) Link (1833)

Ref: PPG I, 2016: 571.

Alternative positions

Filicopsida (Class) C.Agardh (1822)

Ref: R. van der Meijden, 1990: 60.

Historical positions

Ophioglossales (Order) Link (1833)	Ref: D.J. Mabberley, 2017: 649, App. (p. 997).
Ophioglossales (Order) Link (1833)	Ref: PPG I, 2016: 571.
Ophioglossales (Order) Link (1833)	Ref: A. Novikoff & B. Barabasz-Krasny, 2015: 47.
Ophioglossales (Order) Link (1833)	Ref: T.N. Taylor et al., 2009: table (p. 386).
Ophioglossales (Order) Link (1833)	Ref: D.J. Mabberley, 2008: 603, 928; 712.
Ophioglossales (Order) Link (1833)	Ref: A.R. Smith et al., 2006: 709, fig. 2; 727.
Ophioglossales (Order) Link (1833)	Ref: A.B. Doweld, 2001: IX.
Filicopsida (Class) C.Agardh (1822)	Ref: R. van der Meijden, 1990: 60.
Ophioglossales (Order) Link (1833)	Ref: J.T. Mickel, 1982: 341.
Pteridophyta (Division) Schimp. (1879)	Ref: D.M. Moore, 1982: 2. [rough position] [indirect]
Ophioglossales (Order) Link (1833)	Ref: L.J. Audus & V. Heywood, 1981: 1246.

Number of Subtaxa

2024	Available in Systema Naturae 2000	10g;8s
1989-present	Systema Naturae 2000: 16 Jun 2023	[10g]
2017	D.J. Mabberley: 649	4g;55s
2016	PPG I: 572	[10g]
2015	A. Novikoff & B. Barabasz-Krasny: 47	[5g]
2010	Royal Botanic Gardens, Kew & Missouri Botanical Garden: 12 Aug 2011	6g;77s
2008	D.J. Mabberley: 603	4g;55s
2006	A.R. Smith et al.: 709	4g;~80s
1982	J.T. Mickel	3-6[3]g[51s]
1981	L.J. Audus & V. Heywood	~7g;~50s