CLADOPHLEBIS. 99 



3.— Cladophlebis Browniana (Bunker). 



1846. Peeopteris Browniana, Dmiker, 'Wealdeiibilduiig, p. 5, pi. Tiii. fig. 7. 



18i8. Peeopteris Browniana, Broun, Index Pal. Nomenol. vol. ii. p. 914. 



1849. Peeopteris Browniana, Brongniart, Tableau, p. 107. 



1850. Peeopteris Browniana, Unger, Gen. spec, plant, foss. p. 176. 



1852. Alethopteria Seichiana, Ettingshausen, Abh. k.-k. geol. Eeiohs. toI. i. 



Abtb. iii. No. 2, p. 17. 

 1869. Ahthopteris SeioMana, Sebimper, Trait, pal. v6g. vol. i. p. 569. 

 1871. Peeopteris Browniana, Scbenk, Palseontograpbica, ¥ol. xix. p. 215, 



pi. xxvi. figs. 2 and 2a. 

 1874. Alethopteris (?) Browniana, Sebimper, he. oit. vol. iii. p. 602. 



Type. Small terminal pieces of pinnee. 



Dunker compares Ms species to P. ReioJiiana, Presl, and defines 

 it as follows : — 



"Peeopteris fronde pinnata (hipinnata ?) pinnis lanoeolatis, 

 pinnulis linearibus apioe obtusis adnatis, oppositis et alternis, venis 

 tenerrimis obliquis instruotis ; rhachi tenui." ^ 



There are a few specimens in the Museum Collection which 

 agree very closely with this species, and show certain characters 

 which distinguish them from Claiophhbis Dunheri, Schimp. They 

 add very little to our knowledge of Dunker's species. 



Prond bipinnate, pinnse alternate or sub-opposite, long, and of 

 uniform breadth; pinnules approximate, obtusely pointed; venation 

 of the Cladophlebis type. 



Ettiagshausen has followed Dunker's example in comparing 

 Cladophlebis Browniana with Peeopteris Reichiana, Presl, and, 

 indeed, includes the former as a synonym of the latter. Sohimper, 

 in the first volume of his standard work, takes the same view, 

 but in the third volume he reverts to Dunker's original specific 

 designation. 



Sohenk, as previously noted, has probably included under 

 Dunker's species examples of Cladophlebis Bunlceri, but in pi. xxvi. 

 fig. 2, Palseontographica, xix. he figures what I regard as a true 

 Cladophlebis Browniana ; the bluntly pointed approximate pinnules 

 with entire margins are of rather a different type to that which 

 characterizes the larger pinnse of C. Bunlceri. The latter species 

 is a tripinnate form, but C. Browniana appears to be bipinnate. 



1 Wealdenbildung, p. 5. 



