78 BOTFOKriA. 



SpJienopteridis. Pructiflcation in the form of scattered sporangia 

 on fertile fronds or pinnae, of Trliich. the leaf lamina is considerably 

 reduced. 



Sphenopteris FMlUpsii, Mant., may probably be included in the 

 list of synonyms, although the fragment figured under this name 

 is so small that its real nature must remain uncertain. It agrees 

 very closely with some of the more broadly lobed forms of the 

 present species. 



There is no doubt as to the specific identity of S. JETartleleni, 

 Dunk., and S. longifolia, Dunk., with the present species, as 

 Schenk has already pointed out. 



Jeanpaulia nervosa, Dunk.,' is included by Heer* as a synonym 

 of S. valdensis, Hr., but a comparison of the figures lends little 

 or no support to Heer's view. Dunker's J. Brauniana is much 

 more like some of the English specimens of Ruffordia Gopperti 

 than any other forms of that genus. 



On comparing Ettingshausen's figure of Sphenopteris Jugleri 

 with those of S. Gopperti given by Dunker and Schenk, certain 

 differences are at once apparent, but the inclusion by the latter 

 author of Ettingshausen's species in that of Dunker is fully 

 confirmed by the specimens in the Museum Collection. The 

 specimen from the "Lower Shale" (Yorkshire Oolite) referred 

 by Leckenby to S. Jugleri shows a very distinct resemblance to the 

 Wealden fern, and may possibly be rightly included in that species. 



An examination of the type specimen in the Woodwardian 

 Museum, Cambridge, suggests a strong likeness to PI. V. Figs. 2 

 and 3 of Ruffordia Gtpperti (Dunk.) ; considering the small size 

 and imperfect nature of Leckenby's specimen, it is better to avoid 

 an unqualified assent to its association with the present species. 



Schimper includes a species, Sphenopteris {Trichom.) Gopperti, 

 Ettingsh.,' under the heading Sphenopteris -Trichomanides, but 

 this was instituted by Ettingshausen, in 1865, under the name 

 Triehomanites GSpperti^ for the reception of a plant from the 

 Dachschiefer of Moravia and Silesia. Sphenopteris Gopperti, Dunk., 

 is included by Schimper as a synonym of S. Swrtleleni. 



' 'Wealdenbildting, p. 12, pi. T. fig. 3. 



2 Secc. Trab. Geol. Portugal, 1881, p. 14. 



' Trait, pal. y€g. vol. i. p. 412. 



* Sitz. k. Ai. "WiBS. Wien. math.-nat. CI. Tol. li. Abth. i. 1866, p. 205. 



