Polypodiaceae Bercht. & J.Presl
Polypodium billardierei var. pumilum Tindale , nom. inval., nom. nud., scientific
Tindale, M.D. (1961), Grammitidaceae. Contributions from the New South Wales National Herbarium, Flora Series 209: 20 [primary reference]
  • Comment: Cited as "Polypodium billardieri var. pumilum (J.B.Armstr.) Cheeseman, Man. N.Z. Fl. (1906) 1010", in error for Polypodium australe var. pumilum (J.B.Armstr.) Cheeseman.
Tindale, M.D. (1961), Grammitidaceae. Contributions from the New South Wales National Herbarium, Flora Series 209: 20 [taxonomic synonym]
taxonomic synonym of: Grammitis armstrongii Tindale legitimate