2010.04.25 Austria, Lower Austria, districts Baden/Wiener Neustadt Land (Steinwandklamm, a narrow chine with high humility; 640 m AMSL).Sporangium ripe july-september.Not uncommon in its habitat.German name: HirschzungeID: Fischer & al., Exkursionsflora (2008 3rd)
2010.04.25 Austria, Lower Austria, districts Baden/Wiener Neustadt Land (Steinwandklamm, a narrow chine with high humility; 640 m AMSL).Not uncommon in its habitat.German name: HirschzungeID: Fischer & al., Exkursionsflora (2008 3rd)
The British ferns, or, Coloured figures and descriptions with the needful analyses of the fructification and venation of the ferns of Great Britain and Ireland
London :Lovell Reeve,1861.
biodiversitylibrary.org/page/51658840