Caption: Ophioglossum . A-B , O. lusitanicum . A , habit (Hj.Eichler 19333, AD); B , habit of small plant (B.J.Blaylock 1917, AD). C , O. polyphyllum , habit (W.R.Barker 2956, AD). D , O. costatum , habit (D.L.Jones 1342, DNA). E-I , O. gramineum . E-F , habit of plant lacking sterile lamina and a vegetative plant from same population; G , habit of large plant; H , enlargement of sterile apex of spike to show sterile tip; I , enlarged portion of lamina to show venation (E-F , T.Henshall 1739, AD; G-I , P.K.Latz 9688, DNA). J-L , O. reticulatum . J , reduced form (D.L.Jones 1473, DNA); K , robust form; L , enlargement of portion of lamina to show venation (K-L , C.R.Dunlop 5595, DNA).Illustrators: G.R.M.Dashorst.
Flora of Australia Volume 48 (1998) figure 47.