HJ. MÖLLER AND T. G. HALLE, FOSSIL FLORA OF S.E. SCANIA. 27 



(or with Laccopieris, if that name be used). It may be 

 proposed therefore, as a better course, to use a provisional 

 generic name for sterile specimens of the Microdictyon- (and 

 Laccopteris-)tyY)e. Phlebopteris Brgn., if correspondingly de- 

 limited, might possibly be employed for this purpose. It is 

 not intended to discuss this question here, however, since it 

 will be necessary, before forming any decision, to make a 

 comparative study of the venation of the various species of 

 Microdictyon and Laccopteris, for which purpose the available 

 illustrations are not sufficient. 



In addition to the Bathonian Microdictyon rutenicum there 

 are a couple of forms belonging to the Wealden which show 

 perhaps an equally great resemblance to the present speci- 

 mens. One of them is Laccopteris Dunkeri Schenk, especially 

 as illustrated by Hosius & von der Marck,^ but this species 

 generally has much larger pinnules. 



Sageiiopteris cf. Maiitelli (Dunk.) Schenk. 



PI. 3, figs. 21—24. 



Sagenopteris, Nathorst: Jordens historia. Del 2. 1893. P. 851. 



Sagenopteris cf. Mantelli (Dunk.), Halle: On tlie Swedish species of 

 Sagenopteris etc. K. Svenska Vet. Akad. Handl. Bd 45. N:o 7. P. 8. 

 PI. 1, figs. 18—21. 



[For further reference see Seward: The Wealden Flora. 1894. P. 130.] 



The small Sagenopteris first mentioned by Nathorst 

 (1. c.) from Kurremölla, has already been figured and de- 

 scribed as S. cf. Mantelli (Dunk.) (Halle, 1. c). The spe- 

 cimens are refigured here, in pi. 3, figs. 21 — 24. 



The specimens consist of detached leaflets of an obovate 

 to elliptical shape, with broadly rounded apices and with 

 entire or slightly undulating margins. The venation is of 

 the typical Sagenopteris-ohsivaiGieT . A midrib exists, at least 

 in the specimens in figs. 22 and 24, but it is not very marked 

 and evanesces before reaching the apex. The network formed 

 by the anastomosing veins is remarkably open, with broad 

 and comparatively short meshes. The specimen in fig. 24 

 has somewhat narrower meshes: it is possible that it may not 

 belong to the same species. 



^ Hosius & von deb Makck, Die Flora der Westfälischen Kreide- 

 formation. Palaeontographica. Vol. 26. 1880. P. 84. PI. 44, figs. 192, 193. 



