Grammatopteridium costulatum C. Chr. in Dansk Bot. Ark. 6: 80. 1929 Grammatopteridium costulatum C. Chr. in Dansk Bot. Ark. 6: 80. 1929Type: Beccari s.n.Type: Beccari s.n. (FI)Taxon for this nameGrammatopteridium costulatum C. Chr. in Dansk Bot. Ark. 6: 80. 1929