6 ARKIV FÖR BOTANIK. BAND 17. NIO 3. 



ScHiMPER, VV. P., Traité de Paleontologie végétale. — Paris 18G9. 



Sewaed, a. c, Fossil plants, Vol. I. — Cambridge 1898. 



Wills, L. J., The fossiliferous lower Keuper rocks of Vi^orcesterehire. — 



Proc. Geol. Ass. 21, 1910. 

 Notes on the genus Schizoneura Schimper et Mougeot. — Proc. 



Cambridge Phil. Soc. 15, 1910. 



Explanation of Plate. 



(AU figures are in natural size, if not otherwise stated.) 



Equisetite intermedins sp. nov. 



Fig. 1 . Impression of a stem with a branch. 



» 2. Node with leaf-teeth (70- 



» 3. Diaphragm (VO- 



» 4. Stem-fragment. 



» 5. Impression of stem- fragment. 



» 6. Impression of rhizome (?). 



» 7. Tuber. 



» 8. Impression of a spore bearing cone. 



Neocalamites Natliorstii sp. nov. 



Fig. 9. Stem-fragment with a whorl of leaves. 

 » 10. Slender branch with two whorls of leaves. 

 » 11. Stem-fragment (leaves free down to their bases). 

 » 12 and 13. Tubers (?)• 

 » 14. Stem- fragment with a node. 



Tryckt den 30 mars 1921. 

 Uppsala 1921. Almqvist & Wiksells Boktryckeri-A.-B. 



