(Psilotales) (Psilotales) is a biological order of the phylum Tracheophyta (Vascular Plants) and class Polypodiopsida (Leptosporangiate Ferns).
Psilotaceae
Equisetales
Hymenophyllales
Gleicheniales
Marattiales
Ophioglossales
Osmundales
Polypodiales
Psilotales
Schizaeales
Cyatheales
Salviniales