342 A. G. Nathokst. 



stratigraphical position is consequent!}^ analogous to that of the 

 plant-bearing carboniferous beds of Spitsbergen, the age of which, 

 as shown by me long ago \ is lower carboniferous. As will be seen 

 below, this is also the case with the plant-bearing carboniferous 

 beds of North-eastern Greenland. 



Description of Species'. 



Filicales. 



Rachises of ferns (or pteridosperms). 



PI. XV, Figs. 1—4. 



Although naturally these rachises cannot be specifically deter- 

 mined, yet I have thought it convenient to have some of them 

 figured. The specimen fig. 1 is striated longitudinally, as is also 

 the case with many specimens from Spitsbergen, while the specimen 

 fig. 2 is characterised by small spines or tubercles, as is pretty 

 common with palaeozoic ferns or pteridosperms. 



Calymmatotheca bifida Lindley & Hulton sp. 



1^1. XV, Figs. 5, 6. 



Only the two specimens figured (and also the counterpart of 

 fig. 5) have been found; but they are too characteristic to leave 

 any doubt as to the correctness of the determination, for they agree 

 in every point with specimens from Spitsbergen"'. 



Sphenopteris sp. indet. 



Besides the species just mentioned, there occurs also another 

 relic of the Sphenopteris-type, the small pinnules of which seem 

 to have had a somewhat triangular shape. The outlines however 

 are too obsolete to allow of any determination whatever. 



' A. G. Nathorst, Zur paläozoischen Flora der arktischen Zone, Stockholm, 

 Vet. Ak. Handl., Bd. 26, No. 4. 1894. Beiträge zur Geologie der Bären Insel, 

 Spitzbergens und des König-Karl-Landes. U psala, Bul 1. Geol. Inst., Vol. X. 1910. 



- In this short notice I have not found it necessar\' to give any lists of syno- 

 nymy but have only cited such works лvhich are of special interest for the 

 comparison with the species here mentioned. 



^ Nathorst, Zur paläozoischen Flora der arktischen Zone. I.e. p. 19, Taf. III, 

 Figs. 1—3. 



