[Ophioglossum lusitanicum f. latifolium Rouy, moreOphioglossum lusitanicum f. longipedunculatum Rouy, Ophioglossum lusitanicum f. normale Rouy, Ophioglossum lusitanicum subsp. coriaceum (A. Cunn.) R. T. Clausen]
Field Museum of Natural History - Botany Department | Z. R. Kachian : Field Museum of Natural Histor