114 CONIOPTEEIS. 



a small specimen and drawing of a similar skeleton-like pinna, 

 represented in Text-fig. 15, in wHch some of tte ultimate linear 

 segments terminate in cup-shaped indusia containing numerous 

 sporangia apparently of the Cyatheaceous type, as slio-mi ia the 

 figure. This example favours the view that Fig. 14 represents 

 fertile pinnae, in which the son are not preserved, rather than 

 a macerated portion of a frond of the type represented in PI. XVI. 

 Fig. 8. There is little doubt that Sphmopteris quinquehha 

 should be placed in the genus Coniopteris as a very near ally of 

 C. hymenophylhides, both ferns being members of the Cyatheaceae. 

 Nathorst's specimen exhibits in a more delicate form the 



A B 



Fig. 15. — Coniopteris qiiinqueloha (Phillips). From a drawing made from 

 a specimen in the Stockholm Museum : both the specimen and the 

 drawing were kiadly lent hy Professor Nathorst. (Fig. A x 2.) 



Tympanophora racemosa type of pinna of C. hymemphylloides. 

 Some of the specimens figured by Saporta from the Lower 

 Corallian beds of France as Staehypteris litopJiylla ' may possibly 

 be identical with the English species. 



39,263. PI. XVI. Fig. 8. 



Numerous fragments of pinnse with small deeply lobed pinnules ; 

 the secondary pinnse are given ofE at a wide angle from the 

 secondary rachis. Labelled by Bean Peeopteris athyroides. 



Near Scarborough. Bean Coll. 



1 Saporta (73), p. 387, pi. 1. 



