V 



•* 



FLOBA OF THE DAKOTA GROUP. 29 



Podozamites ensis, Nath., "Fl. of Bjuf.," pi. xv, fig. 2. This, however, has 

 the veins narrower and indistinct. 



Eab. — South of Fort Harker, 4 miles east of Minneapolis, and 7 miles 

 northeast of Glasco, Kansas. Chs. Sternberg. 



Podozamites prselongus, sp. nov. 



Leaf large, oblong, linear, narrowed gradually to the point of attachment, 

 obscurely veined; primary nerves parallel and distinct. 



The upper part of the leaf broken at 12 centimeters from the base 

 is there 5 centimeters broad. The whole length appears to be about 16 

 centimeters. Its size is greater than that of any of the leaves of this genus 

 figured by authors, larger than the fragment of P. lanceolattis-latifolius, 

 Heer, "Fl. Arct.," iv, pi. xxvi, fig. 6. 



Though obtuse, the veins appear more distant and broader than in 

 this last species. 



ffab. — South of Fort Harker, with the preceding. 



Podozamites emarg'inatus, sp. nov. 



Leaves large, linear-oblong, gradually narrowed from below the middle to the 

 flattened base, abruptly rounded and deeply emarginate at the apex ; primary nerves 

 parallel, distinct or prominent, conjoining at the apex and the base, separated by thin 

 disconnected veinlets. 



The leaf is 14 centimeters long, 3i centimeters broad in the middle, 

 the point of attachment 4 millimeters broad. It is abruptly rounded at 

 the top to 2 centimeters broad and there deeply obtusely emarginate, the 

 borders joining into a small obtuse sinus li millimeters wide. 



The emargination of the top may be a casual deformation, but even 

 if the apex was regular and obtuse this species is without marked affinity 

 to any other of the genus. 



ffab. — Seven miles northeast of Glasco, Kansas. 



Podozamites caudatus, sp. nov. 

 Leaf large, enlarged and oval in the middle, where it is 5 centimeters broad, rap- 

 idly narrowed to a point of attachment 7 millimeters broad, and attenuated from above 

 the middle in rounding to a long acumen measuring IJ centimeters broad at the point 

 where it is broken 13 centimeters from the base. 



The leaf has a peculiar form, being abruptly enlarged in the middle 

 from above the base and as rapidly narrowed into a long linear acumen 

 whose upper part is destroyed. The primary veins are flat and broad, 



