Ferns


 * Ferns
 * Psilotopsida
 * Psilotales (whisk ferns)
 * Ophioglossales (grapeferns etc.)
 * Equisetopsida
 * Equisetales (horsetails)
 * Marattiopsida
 * Marattiales|barend1
 * Polypodiopsida
 * Osmundales|barbegin1
 * Hymenophyllales (filmy ferns)
 * Gleicheniales
 * Schizaeales
 * Salviniales (heterosporous)
 * Cyatheales (tree ferns)
 * Polypodiales