NO. 3.] DESCRIPTION OF SPECIES. 15 



leaves of this plant from those of Phoenicopsis, and suggested that the two 

 genera may perhaps coincide. If it be difficult to distinguish complete leaves 

 of the two genera the one from the other, this difficulty is of course greatly 

 increased when such fragmentary specimens as those in question are to be 

 determined. For this reason it is with a certain degree of hesitation I include 

 them under this genus. The occurrence of Feildenia is, however, not unexpected, 

 as it is represented in the Upper Jurassic flora of Spitsbergen. 



Feildenia sp. 

 PI. I. figs. 2530, 32. 



The specimen figured in fig. 28 presents a falciform bend at the base 

 of the leaf, still more pronounced than that usual in Feildenia Nordenskioldi 

 Nath. (1. c.) from Spitsbergen. On the contrary the base of the leaf of the 

 specimen fig. 27 is straight, the apex is rounded and not oblique, as is gener- 

 ally the case with the species described from Spitsbergen. In this the num- 

 ber of the veins is usually 6, only exceptionally 10, while 8 to 10 seems to 

 be the usual number in the specimens from Franz Josef Land. If these 

 really belong to the Feildenia they may therefore probably belong to a new 

 species. One specimen in the brown softer rock with but 6 veins is, however, 

 very similar to Feildenia Nordenskioldi Nath. from Spitsbergen. 



TAXITES, Brongniart. 



Taxites cf. gramineus Heer sp. 

 PI. II. figs. 20-23. 



Cycadites gramineus Heer, 'Beitrage zur foss. Flora Spitzbergens', p. 34, 

 pi. 8, fig. 7 (?), 8. Heer, 'Beitrage zur Jura-Flora Ostsibiriens 

 etc,' p. 100. pi. 26, fig. 4. 



Taxites gramineus Nathorst, 'Zur mesozoischen Flora Spitzbergens', p. 17. 

 As far as may be ascertained from these fragmentary specimens, they 

 seem to agree very well with Taxites gramineus Heer sp. from the Jurassic 

 strata of Spitsbergen and East Siberia. The leaves are about 3 to 3'5 mm. 

 in breadth and present transverse impressions on their surface, which may 

 certainly be considered a phenomenon of dessication, but which, at the same 

 time, doubtless is connected with some structural peculiarity, as they so often 

 are seen in this sort of leaf. 



