Nephrodium expansum C. Presl, Reliq. Haenk. 1: 38. 1825 Nephrodium expansum C. Presl, Reliq. Haenk. 1: 38. 1825is basionym for Dryopteris expansa (C. Presl) Fraser-Jenk. & Jermy in Fern Gaz. 11: 338. 1977Taxon for this nameNephrodium expansum C. Presl, Reliq. Haenk. 1: 38. 1825