ETJFFOEDIA. 133 



characterized by a distinct contrast between barren and fertile 

 pinnse, by the resemblance of the pinnules to those of Anemia 

 aditint ifolia, Sw., and by the correspondence in habit of both the 

 sterile and fertile pinnae. 



Ruffordia Goepperti (Bunker). 



[Wealdenbilduug, p. 4, pi. i. fig. 6 ; pi. ix. figs. 1-3, 1846.] 



The synonymy and diagnosis of this species have been given at 

 length in the first volume of my Wealden Catalogue. Leckenby 

 win- the first to suggest the identity of the Lower Oolite fern with 

 the Wealden species which Ettingshausen named Sphenopteris 

 Jityleri. Schenk included Sphenopteris Jugleri, Ett., as a synonym 

 of Bunker's species S. Goepperti, and the "Wealden specimens in 

 the British Museum amply confirm this view. There are no 

 examples from the Yorkshire Oolite rocks in the Museum Collection 

 which can be referred to the Wealden type, but in the Leckenby 

 Collection (Cambridge) there are two small specimens (Nos. 144, 

 158) which are probably identical with Ruffordia Goepperti. In 

 the third edition of Phillips' Geology of Yorkshire there is a figure l 

 of a portion of one of the Leckenby specimens which does not do 

 justice to the original, but it serves to illustrate the resemblance 

 of the Jurassic fern to the Wealden type. 



The list of Inferior Oolite fossils given by Fox-Strangways 2 

 includes the Wealden species Sphenopteris Jugleri, Ett. On 

 the smaller specimen in the Leckenby Collection Nathorst has 

 written: "Possibly the young leaf of Sphenopteris Williamsonis, 

 or perhaps the same as S. Jugleri" The larger specimen 

 {No. 158) bears but little resemblance to Brongniart's species 

 S. Williamsonis. 



1 Phillips (75), p. 218, lign. 40. 

 Fox-Strangways (92 2 ), p. 135. 



