Classification (IN PROGRESS)

Please note that this is a work in progress. The official PPG II has not been released yet. Please do not cite this as PPG II until it is officially released.

To see details such as synonyms, please browse the data on Rhakhis (most up-to-date version) or World Flora Online (WFO) (biannual snapshots). For more information about WFO, see here.

Class Lycopodiopsida Bartl.

Order Lycopodiales DC. ex Bercht. & J.Presl

Family Lycopodiaceae P.Beauv. ex Mirb.
Subfamily Huperzioideae W.H.Wagner & Beitel ex B.Øllg.

Huperzia Bernh.

Phlegmariurus (Herter) Holub

Phylloglossum Kunze

Subfamily Lycopodielloideae W.H.Wagner & Beitel ex B.Øllg.

Lateristachys Holub

Lycopodiella Holub

Palhinhaea Franco & Vasc.

Pseudolycopodiella Holub

Subfamily Lycopodioideae W.H.Wagner & Beitel ex B.Øllg.

Austrolycopodium Holub

Dendrolycopodium A.Haines

Diphasiastrum Holub

Diphasium C.Presl ex Rothm.

Lycopodiastrum Holub ex R.D.Dixit

Lycopodium L.

Pseudodiphasium Holub

Pseudolycopodium Holub

Spinulum A.Haines

Order Isoetales Prantl

Family Isoetaceae Dumort.

Isoetes L.

Order Selaginellales Prantl

Family Selaginellaceae Willk.

Selaginella P.Beauv.

Class Polypodiopsida Cronquist, Takht. & W.Zimm.

Subclass Equisetidae Warm.

Order Equisetales DC. ex Bercht. & J.Presl

Family Equisetaceae Michx. ex DC.

Equisetum L.

Subclass Ophioglossidae Klinge

Order Psilotales Prantl

Family Psilotaceae J.W.Griff. & Henfr.

Psilotum Sw.

Tmesipteris Bernh.

Subclass Marattiidae Klinge

Subclass Polypodiidae Cronquist, Takht. & W.Zimm.

Order Hymenophyllales A.B.Frank

Family Hymenophyllaceae Mart.
Subfamily Hymenophylloideae Burnett

Hymenophyllum Sm.

Subfamily Trichomanoideae C.Presl

Abrodictyum C.Presl

Callistopteris Copel.

Cephalomanes C.Presl

Crepidomanes C.Presl

Didymoglossum Desv.

Polyphlebium Copel.

Trichomanes L.

Vandenboschia Copel.

Order Schizaeales Schimp.

Family Lygodiaceae M.Roem.

Lygodium Sw.

Family Schizaeaceae Kaulf.

Actinostachys R.Br. ex Hook. & Baker

Microschizaea C.F.Reed

Schizaea Sm.

Order Cyatheales A.B.Frank

Family Thyrsopteridaceae C.Presl

Thyrsopteris Kunze

Family Loxsomataceae C.Presl

Loxsoma R.Br. ex A.Cunn.

Loxsomopsis Christ

Family Plagiogyriaceae Bower

Plagiogyria (Kunze) Mett.

Family Culcitaceae Pic.Serm.

Culcita C.Presl

Family Metaxyaceae Pic.Serm.

Metaxya C.Presl

Family Cibotiaceae Korall

Cibotium Kaulf.

Family Dicksoniaceae M.R.Schomb.

Calochlaena (Maxon) M.D.Turner & R.A.White

Dicksonia L’Hér.

Lophosoria C.Presl

Family Cyatheaceae Kaulf.

Alsophila R.Br.

Cyathea Sm.

Gymnosphaera Blume

Sphaeropteris Bernh.