68 



STUDIES IN FOSSIL BOTANY 



below the first, consisting of the sporangiophores (see 

 Fig. 29). Thus the relative position of bracts and 

 sporangiophores is just the reverse of that in Palaeo- 

 stachya. According to Fischer's observations the bracts 

 and sporangiophores were not free whorls, but were 

 partly united to each other, an important point of 



Fig. 28. — Cingularia typica. Part of branch, bearing whorled leaves and a lax cone, 

 with whorled bracts. Nat. size. After Weiss. 



analogy with the Sphenophyllales. (See next chapter, 

 p. 99). 1 The strap -shaped sporangiophores separate 

 from one another as they approach the exterior, and 

 further to the outside each divides into two lobes, as 

 shown in Fig. 29. Looking at the under surface 

 of a fertile whorl, we notice on each of the flattened 

 sporangiophores four prints, which are known to have 



1 See Ed. Fischer, " Einige Beme'rknngen Uber die Calamarieen-gattung 

 Cingularia," Mitth. d. Naturf. Gesellsch. in Bern, 1893. 



