Sphaerostephanos hispiduliformis Sphaerostephanos hispiduliformis (C. Chr.) Holttum, comb. nov.≡Dryopteris hispiduliformis C. Chr., Ind. Fil.: 88. 1934≡Thelypteris hispiduliformis (C. Chr.) Reed in Phytologia 17: 283. 1968Unknown type category: Ledermann 11758