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Psilotopsida |
 | | [ Polypodiopsida ] [ Psilotopsida ] [ Ranunculopsida ] |
 | | Individual specimen entries are published in the sample database supplied with The Compleat Botanica for species or varieties of this supra-generic taxon. |
 | | For a description of the methodology followed in establishing this hierarchy see the note Nomenclature used in The Compleat Botanica. |
| www.crescentbloom.com /plants/Classis/Psilotopsida.htm (59 words) |