Ptisana decipiens var. decipiens: A type specimen, with characteristically large segments B stipe showing scales C adaxial surface of fertile segments, showing vein spacing, synangial distance from margin, and winged costa. Ptisana decipiens var. delicata: D type specimen, with characteristically small segments E abaxial surface of fertile segment with maturing synangia. Photos: C.-W. Chen.

  Part of: Murdock AG, Chen C-W, Huang Y-M, Glenny D (2020) Affinities of the fern genus Ptisana (Marattiaceae) in the Solomon Islands, with descriptions of two new species. PhytoKeys 170: 1-23.