I-] 



SCHIZOLEPIS 



441 



by a narrow stalk-Kke basal portion (fig. 808, B). Schenk states 

 that there are two anatropous seeds to 

 each scale, but it is not clear if the actual 

 seeds are present. 



Schizolepis Follini Nathorst. 



In this species from the Ehaetic flora 

 of Scania^ the bilobed scales are sessile 

 and broader than in S. Braunii. In some 

 specimens there appear to be two seeds 

 near the base of a scale. Saporta^ regards 

 the cone-scales of the type-species and S. 

 Follini as double structures, the trans- 

 verse line shown in Schenk's figures below 

 the forking of the scale being the hmit of 

 the bract-scale, while the thinner distal 

 lobed part represents the seminiferous 

 scale; an interpretation which rests on 

 very slender evidence. To this species 

 Raciborski^ refers a specimen from rocks 

 possibly of Rhaetic age in Poland. 



Schizolepis Moelleri Seward. 



Under this name* some detached bi- 

 lobed scales without seeds were described 

 from Jurassic rocks in Turkestan (fig. 808, A) and the South of 

 Russia^, and Krystofovic has recently discovered a cone of the 

 same species in Jurassic strata in Transbaikaha®. 



Schizolepis cylindrica Nathorst. 



Founded on a long and narrow, incomplete, strobilus from 

 Upper Jurassic rocks in Spitzbergen' bearing deeply lobed scales. 

 A second species, S. retroflexa^ (fig. 808, C), assigned with some 



1 Nathorst (78) B. p. 28, Pis. xiv., xv. 



2 Saporta (84) p. .502. 



3 Raoiborski (92) p. 354, PI. n. figs. 1, 20 d. 

 « Sijward (07=) p. 36, PI. vn. figs. 64—66. 



5 Thomas (11) p. 79, PI. v. fig. 4. 



s Krystofovifi (15) p. 95, PI. vi. figs. 10, 11. 



' Nathorst (97) p. 39, PI. n. figs. 1, 2. 



8 Ihid. p. 60, PI. m. figs. 31, 32; PI. vi. figs. 11, 12. 



Fig. 808. Schizolepis. A, Schi- 

 zolepis Moelleri. B, Schizo- 

 lepis Braunii. C, Schizo- 

 lepis{ ?) retroflexa. (A, after 

 Seward; B, after Schenk; 

 C, slightly enlarged, after 

 Nathorst.) 



