Abaxial surface of pinnule and sori of A Athyrium crenulatoserrulatum B Athyrium bipinnatum, C Athyrium × christensenianum D Athyrium decurrentialatum (illustration by K. Hori).

 
 
  Part of: Hori K (2020) Athyrium bipinnatum K.Hori (Athyriaceae), a new cornopteroid fern from Japan. PhytoKeys 148: 93-104. https://doi.org/10.3897/phytokeys.148.51589