HJ. MÖLLER AND T. G. HALLE, FOSSIL FLORA CF S.E. SCANIA. 25 



can be observed but it is possible that such exist (figs. 14 

 and 16). The specimen in fig. 17 is fertile, with rather large, 

 rounded impressions of sori, of which the structure cannot 

 be ascertained but which are probably placed between the 

 secondary veins. 



It seems permissible to refer these specimens to Lacco- 

 pteris on account both of the sori and the venation. The 

 earlier illustrations of the type-species, L. elegans Presl,^ do 

 not show any anastomosing of the veins, but Seward - has 

 stated that such occur in typical specimens both of this 

 species and of others. 



The material is much too poor for a specific identification, 

 but the specimens may be compared with such belonging to 

 a couple of known species. The venation shows a certain 

 resemblance to that of L. elegans Presl (1. c), especially in 

 regard to the fact that no anastomoses can be observed, 

 though such may exist. In L. elegans, as mentioned above, 

 the venation was not found to be anastomosing until the 

 species had been known for a long time. The straight and 

 parallel course of the lateral veins towards the margins is 

 another character common to both forms, but the same occurs 

 in other species, too, especially in L. Woodwardi (Leck.) Sew.^ 

 This species appears to come fairly near to L. elegans, and in 

 the first illustration given of it (Leckenby, 1. c.) the vena- 

 tion is not represented as anastomosing. Saporta,* who refers 

 the species to his new genus Microdictyon, notes the anasto- 

 moses, and so does Seward (1. c, p. 85, fig. 11 A.). Espe- 

 cially the figures given by Saporta, in which the anastomoses 

 are rather few, greatly resemble the present fragments, and it 

 is very possible that these may belong to L. Woodivardi rather 

 than to L. elegans. Under such circumstances, a specific 

 identification is clearly impossible, even were the specimens 

 much better than is the case. 



' Presl in : Sternberg, C. von, Versuch einer Darstellung der Flora 

 der Vorwelt. Vol. 2. 1838. PI. .32, figs. 8 a— c. Schenk, A., Die fossile 

 Flora d. Grenzschichten- 1867- PL 22, figs. 9—12. 



^ Seward, A. C, The Jurassic Flora. 1. The Yorkshire Const. Cata- 

 logue of the Mesozoic plants of the British Museum (Natural History). 

 1900. P. 77. 



' Leckenby, J., On the sandstones and shales of the Oolites of Scar- 

 borough, with descriptions of some new species of fossil plants. Quart. 

 Journ. Geol. Soc. London. Vol. 20. 1864. P. 81. PI. 8, fig. 6. 



^ Saporta, G. de, Paléontologie frangaise. Sér. 2. Végétaux. Plantes 

 Jurassiques. Vol. 1. 1873. P. 313. Pl. 33, figs. 5—7. 



