Boufford - 41263 - China
Festo - 2471 - Kenya
Kharkevich - 6501 - Russian Federation
Nozu - s.n. - Japan
Ophioglossum vulgatum
Pringle - 15705 - Mexico
Pringle - 8924 - Mexico
Ramon - 464 - Madagascar
Rasolohery - 352 - Madagascar
Schelpe - 7177 - South Africa
Stewart - 2064 - India
Unknown - 40 - India
Vvedensky - 5502 - Russian Federation
Yatskievych - 89-100 - United States