THE JURASSIC FLORA OF SUTHERLAND. 



685 



leaf-bundle is seen very clearly passing from stem to leaf-lamina. It is not improbable 

 that the fragmentary specimen shown in text-fig. II, d, may be part of a male flower of 

 this species ; similarly the small cone shown in fig. 77, PI. V., may be compared with 

 some male cones figured by Nathorst on a branch of Elatides curvifolia. 



C 



Text-Fig. 10. 



A. Part of a cone of Elatides curvifolia (Dunk.), a, o. Cone-scales with faint indication of seeds (nat. size). 



(Gunn collection.) 



B. Cone-scale with indistinct impression of a single seed. Slightly 'enlarged and somewhat diagrammatically 



represented. (The cone from which the scale was drawn is shown in PI. V. fig. 76.) (Gunn collection.) 



C. % Podozamites sp. (Very slightly enlarged.) (Gunn collection.) 



The Jurassic species Pagiophyllum Williamsoni (Brongn.) represents a very closely 

 allied type. Schenk's species Pagiophyllum crassifolium # is another similar form. As 

 Nathorst points out, some of Heer's Lower Cretaceous specimens described as Sequoia 

 Reichenbachii t are examples of Elatides curvifolia, and specimens figured by Schenk 

 under Heers designation from Lower Cretaceous rocks in the Tyrol \ cannot be 

 distinguished from the Culgower and Spitzbergen fossils. It is probable that some of 

 the specimens identified by me from the English Wealden as Sphenolepidium Stern- 

 bergianum § are referable to Elatides curvifolia. 



Elatides Sternbergiana (Schenk). (PI. V. figs. 75, 75A.) 



1846. Muscites Sternbergianus, Dunker, Wealdenbildung, p. 20, pi. vii. fig. 10. 



1871. Sphenolepis Sternbergiana, Schenk, Paleeontographica, Bd. xix. p. 243, pi. xxxvii. figs. 3, 4, 



pi. xxxviii. figs. 3, 13. 

 1895. Sphenolepidium Sternbergianum, Seward, Wealden Flora, vol. ii. p. 206, pi. xv. figs. 5, 6. 



It is by no means unlikely that under this specific name Schenk has included more 

 than one type ; similarly, some of the Wealden specimens described by Ettingshausen as 



* Schenk (71), pi. xl. t Heer (75), pi. xxxvi. J Schenk (76 2 ), pi. xxiv. § Seward (95), pi. xvi. 



