Fossil Floras of Cape Colony. & 



the same type before the close of the Jurassic period. It is note- 

 worthy, however, that the specimens from the Jurassic locaHties are 

 very small, and several of them can hardly be referred with con- 

 fidence to Omjchioims mantelli, which is represented by many 

 undoubted examples from the Wealden of Portugal as demonstrated 

 by the figures of Heer '•'- and Saporta. 



Plate I., fig. 1 (428c). 

 Portion of a large frond, approximately 17 cm. in length, with long 

 spreading pinnae. The slender rachis shows narrow lateral wings, 

 and in places a prominent woody axis ; the pinnge are decurrent on 

 the rachis, and the upper branches of the frond are given off at a- 

 smaller angle than the lower. Longest pinnae 8 cm. long, tapering 

 gradually to a serrate acuminate apex. Veins obscure. Specimen 

 434a is the reverse of 428c. 



Plate I., fig. 2 (391c), U nat. size. 

 A single pinna bearing in the lower part linear serrate pinnules, 

 and in the apical region shorter entire segments. The specimen 

 from which the drawing was made differs from the frond repre- 

 sented in fig. 1 in its slightly narrower and more delicate pinnules,, 

 and is identical with the typical European examples of the species. 



Plate I., fig. 3 (407c), x 2. 

 The complete specimen of which a small portion is represented in 

 the figure, twice natural size, is 8 cm. in length, and agrees in all 

 respects with the EngHsh and German form of Onychiopsis mantelli. 

 The single pinna shows the entire and shorter segments charac- 

 teristic of the apical region of a frond. 



Plate I., fig. 4 (401c), x 2. 

 A portion of the rachis and the base of two pinnae illustrating the 

 broader type of lobed pinnules. This fragment shows very clearly 

 the winged character of the rachis and the prominent woody axis. 



Plate v., fig. 1. (Type-specimen of Tate's Sphenopteris antipoduvi ; 

 Museum of Geological Society of London, No. 11,114.) 

 This specimen from Geelhoutboom is, I believe, clearly identical 

 with Onychiopsis mantelli (Brongn.), at least as regards the vegeta- 

 tive characters of the frond. The rachis is traversed by a narrow 



* Heer (81), pi. xi., xii. 



