A Generic Classification of the Thelypteridaceae Author Fawcett, Susan Author Smith, Alan R. text 2021 BRIT Press Fort Worth, Texas, USA book 10.17348/jbrit.v15.i2.1206 14111022 Plesioneuron walkeri (Holttum) S.E. Fawc. & A.R. Sm. , comb. nov. — Pneumatopteris walkeri Holttum,Blumea 21:323.1973 .