Nephrodium hirsutulum (G. Forst.) Desv. = Nephrolepis exaltata var. hirsutula (G. Forst.) Baker
English:
hirsutulus,-a,-um;

https://books.google.nl/books?id=ETheAAAAcAAJ&printsec=frontcover&hl=nl&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false
homotypic synonyms:
Aspidium hirsutulum (G. Forst.) Sw.; Nephrodium hirsutulum (G. Forst.) C. Presl; Nephrolepis hirsutula (G. Forst.) C. Presl; Polypodium hirsutulum G. Forst.; Polystichum hirsutulum (G. Forst.) Bernh.;

protologue: Mém. Soc. Linn. Paris 6: 253 (1827)

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