CLABOPHLEBIS. 9 1 



V. 2197. Portions of seven pinnse with the rachis very pro- 

 minent. In many of the pinnules the midrib is fairly well defined, 

 but the venation as a whole is much less distinct than in the 

 figured specimen (V. 2204). Ecclesbourne. Eufford Coll. 



v. 2203. Eragments of pinnsB showing distinct venation. In 

 these pieces the central axes of the pinnse have a well marked 

 longitudinal groove ; the individual pinnules show the specific 

 characters clearly. Ecclesbourne. Rufford Coll. 



V. 2210. This specimen shows part of the main rachis, and the 

 manner of attachment of the pinnse. Ecclesbourne, Rufford Coll. 



2. — Cladophlebis Albertsii (Dunker). 



1846. Neuropteris Albertsii, Dimker, Wealdenbildung, p. 8, pi. fii. figs. 6 

 and 6a. 



1849. Cladophlebis Albertsii, Brongniart, Tableau, p. 107. 



1850. Neuropteris Albertsii, Unger, Gen. spec, plant, foss. p. 83. 



1853. Neuropteris Albertsii, Ettingshausen, Abh. k.-k. geol. Eeiehs. p. 12. 



1869. Alethopteris Albertsii, Schiinper, Trait, pal. veg. vol. i. p. 570. 



1870. Pecopteris Whiibiensis,^ Trautscbold, NouT. M§m. Soc. Nat. Moscow, 



Tol. xiii. p. 27, pi. xii. fig. 2. 



1871. Alethopteris Albertsii, Schenk, Palseontographica, xix. p. 218, 



pi. xxTii. figs. 4 and ia. 

 p Fteris Albertsii, Heer, Fl. foss. Aict. vol. vi. pt. i. p. 29, pi. xvi. 



fig. 5. 

 1883. ? Sphenopteris flabellifolia, var. erecta, Tenison-Woods, Proo. Linn. 



Soc. N.S. "Wales, vol. viii. pt. i. p. 94, pi. ii. fig. 2. 

 1888. f Pteris Alberlini, Velenovsky, Abh. math.-nat. CI. k. bohm. Ges. 



Wiss. Tol. ii. Folg. vii. p. 15, pi. iv. figs. 5-10. 

 1892. ? Asplenium nebbense, Bartholni, Bot. Tid. Bot. For. KjoTenbavn, 



p. 18, pi. vii. figs. 3-6. 



Type. Single pinna ; badly preserved. 



Dunker adopts the genus Nev/ropteris, and defines the species as 

 follows ''■ : — 



" iTeuropteris fronde pinnata (bipinnata ?) pinnulis tenuibus 

 oppositis distantibus, sessilibus, oblongis, basi rotundatis vel 

 subcordatis, apice attenuatis, subobtusis; nervo medio crassiusculo, 



' Cf. also Asplenites desertorum, Trautschold, loe. cit. pi. xviii. fig. 7. 

 ' 'WeaJdenbildung, p. 8. 



