1 14 CONIOPTEEIS. 



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

 represented in Text-fig. 15, in which some of the ultimate linear 

 segments terminate in cup-shaped indusia containing numerous 

 sporangia apparently of the Cyatheaceous type, as shown in the 

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

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

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

 Fig. 8. There is little doubt that SpJienopteris quinqueloba 

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

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

 Nathorst's specimen exhibits in a more delicate form the 



A B 



FIG. 15. Coniopteris quinqwkba (Phillips). From a drawing made from 

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

 drawing were kindly lent by Professor Nathorst. (Fig. A x 2.) 



Tympanophora racemosa type of pinna of C. hymenophyttoides. 

 Some of the specimens figured by Saporta from the Lower 

 Corallian beds of France as Stachypteris litophylla^ may possibly 

 be identical with the English species. 



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



Numerous fragments of pinnae with small deeply lobed pinnules ; 

 the secondary pinnae are given off at a wide angle from the 

 secondary rachis. Labelled by Bean Pecopteris athyroides. 



Near Scarborough. Bean Coll. 



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



