Zs. P. Komáromy szerk.: Studia Botanica Hungarica 14. 1980 (Budapest, 1980)

Szerdahelyi, Tibor; Hably, Lilla: Rare ferns of Hungary II. New species in Hungary: Osmunda regalis L.

Map 1 Key to the signes used •B=K Railway Village margin - Highroad Water surface —Forest-path |§§||JResting forest X, Stream |gSg§] Strictly protected area ^ Village Border of the protected area R Resting place