Caption: Pneumatopteris . A-C , P. costata . A , lower surface of central lobes of a middle pinna; B , detail of A ; C , base of frond (A-C , R.J.Chinnock 5796, AD). D-E , P. sogerensis . D , lower surface of central lobes of a middle pinna showing pustular surface where dried; E , base of frond (D-E , Y.G.Trapnell 281, K). F-G , P. pennigera . F , lower surface of central lobes of a middle pinna; G , detail showing costa with scales) F-G , E.Duncan s.n. , 26 Jan. 1975, MEL).Illustrators: P.J.Edwards.
Flora of Australia Volume 48 (1998) figure 121.