8 ARKIV FÖR BOTANIK. BAND 13. N:0 7. 



The material from this locality has been collected by 

 Moberg. Only three species can be identified, which will 

 be described below. In the description no attempt has been 

 made to give full lists of synonyms : for such, reference may 

 be made to the papers by Nathorst, Möller etc. quoted 

 in that connexion. 



Gutbiera aiigiistiloba Presl. 



PI. 1, figs. 1—6. 



Gutbiera angtistiloba Pkesl, Nathorst: Växter från rätiska forma- 

 tionen vid Pålsjö i Skåne. K. Svenska Vet. Akad. Handl. Bd 14. N:o 3. 

 P. 22. Pl. 3, figs. 8—10; pl. 4, fig. 1. 



Gutbiera angustiloba Prksl, Nathorst in: Moberg, 1. c, 1893, p. 11. 



[For further reference see Möller: Bidrag till Bornholms fossila flora. 

 Pteridofyter. Lunds Univ. Årsskrift. Bd 38. Afd. 2. N:o 5. 1902. (K. 

 Fysiograf. Sällsk. Handl. Bd 13. N:o o.) P. 35.] 



Gutbiera angustiloba is represented by a fairly large num- 

 ber of fragments of detached pinnules. They are all very 

 small, measuring 5 — 7 mm. in length and hardly 2 mm. in 

 breadth at the most. The midrib is distinct, and in some 

 specimens the secondary veins, which arise at very wide or 

 about right angles, can be traced for some distance. 



Figs. 2 and 3, pl. 1, are enlarged drawings of two coun- 

 terparts, one of which is shown in natural size in fig. 1. The 

 surface in these specimens is divided up into regular square 

 fields corresponding each to the area between two adjacent 

 secondary veins. These areas are convex on the impression 

 of the lower, concave on that of the upper side. 



The two fragments in pl. 1, figs. 5 and 6, are the coun- 

 terparts of each other, representing the impressions of the 

 two sides of the upper part of a pinnule. The lamina is 

 divided up into fields as in the specimens already described, 

 each area being, in this case also, convex on the impression 

 of the lower side and concave on the counterpart. In the 

 middle of each area there is, on the impression of the lower 

 side, a minute dot-like elevation, to which appears to corres- 

 pond a depression in the counterpart. These dots were suppo- 

 sed by Schenk ^ to represent pores in the indusia covering 

 the sori. The structure of the present specimens does not well 



* Schenk, A., Die fossile Flora der Grenzschichten. 1807. P. G4 & foil. 



