10 Annals of the South African Museum. 



woody axis with lateral wings, and gives off spreading pinnge bearing 

 slender linear segments the lamina of which is divided into acuminate 

 teeth, 



Ot]ier Specimens : 433c. — This specimen shows very clearly the 

 narrow pinnaj with entire segments (c/. fig. 3) in the apical region of 

 the frond; also the gradual transition from the narrow oval segments 

 to larger segments with a serrate mai'gin. 140c, 320c (on the reverse 

 side is a good impression of a Cycadolepis jenkinsiana), 389c, 390c 

 {with seeds of Araucarites rogersi), 392c, 411c, 429c, 430c. 



Genus CLADOPHLEBIS Brongniart. 



(Of doubtful Family-position.) 



Brongniart proposed this generic name in 1849 " for certain forms 

 of Pecopteris, previously included in the group Neuropterides. The 

 genus is founded on sterile fronds only, and is applied to ferns which 

 •cannot be referred to a particular family ; the name Cladophlebis is 

 usually made use of for Mesozoic species which agree in habit with 

 Palaeozoic representatives of Pecoptcris. Numerous fossil ferns have 

 been described by authors as species of Aspidium, which, in the 

 absence of sori or sporangia, have no claim to be designated by the 

 name of a recent genus. 



Cladophlebis browniana (Dunk.). 

 Plate II., figs. 1-4, 6. 



1846. Pecoptcris Browniana Dunker, Wealdenbildung, p. 5, pi. viii., 



fig. 7. 

 1849. Pecoptcris Broioniana Brongniart, Tableau, p. 107. 

 1852. Alcthoptcris Bcichiana Ettingshausen, Abh. k.-k. geol. Eeichs., 



vol. i., Abth. iii., No. 2, p. 17. 

 1871. Pecoptcris Broivniana Schenk, Palaeontographica, vol. xix., 



p. 215, pi. xxvi., figs. 2, 2a. 

 1877. Pecoptcris exiliformis Geyler, Palseontographica, vol. xxiv., 



p. 226, pi. xxx., fig. 1. 

 1889. ? Pecoptcris Browniana Fontaine, Potomac Flora, pi. xxiii., 



figs. 2-7. 



* Brongniart (49), p. 25. 



