200 J. S. Newberry— Flora of the Great Falls Coal Field. 



Formation and locality, Kootanie group, Great Falls of the 

 Missouri, Montana. 



Collected by R. S. Williams. 



Cladophlebis angtistifolia, n. sp. 

 PI. XIV, fig. 8. 



Pinnse several inches in length by one inch in maximum width ; 

 pinnules ten to twelve mm. in length by three mm. in width at 

 base, distinctly separated, attached to the entire base, curved or 

 falcate in form, subacute or obtuse at summit ; nervation open, 

 strong. 



This plant resembles C. falcata Fontain,e (Monog. XV, p. 72, 

 PI. V, figs. 1-6), but the pinnules are smaller, narrower and less 

 acute. 



Formation and locality, Kootanie group, Great Falls of the 

 Missouri, Montana. 



Collected by R. S. Williams. 



Sequoia acutifolia, n. sp. 

 PI. XIV, fig. "7, 7a. 



Leaves crowded, from one-quarter to one-half an inch in length, 

 wedge-shaped, rounded or abruptly contracted at the base, sum- 

 mit long pointed, very acute. 



Only one twig of this tree is contained in the collection, but its 

 leaves are so peculiar that I feel quite justified in considering it 

 a new species. Its most striking feature is the wedge-shaped 

 outline of the leaves which are broadest near the base and are 

 drawn out in a long and very acute point. In the Cretaceous 

 rocks of Vancouver's Island occur twigs of a species of Sequoia 

 to which I have given the name of Sequoia cuneata because they 

 are so decidedly wedge-shaped, but in that species the leaves are 

 spatulate, broadest near the rounded summit and terminate below 

 in a wedge-shaped base. In the species now under consideration 

 the leaves have quite an opposite form ; being broadest at or 

 near the base and terminating above in a long drawn acute point. 



Among all the living and fossil species of Sequoia there is no 

 other known to me that has leaves of* this peculiar form. 



Formation and locality, Kootanie group, Great Falls, Montana. 



Collected by Mr. R, S. Williams. 



Podozamites nervosa, n. sp. 

 PI. XIV, fig. 6. 



Leaflets, four inches in length, lanceolate, broadest toward the 

 base, subacute at the summit ; nerves parallel, distant, strong. 



This is a leaflet of a frond of a strong-growing species of zamites 

 similar to Heer's JB. marginatus, but differing from that in its 

 much more remote parallel and distinct nerves. Only one speci- 

 men has been as yet received from Mr. Williams, and more will 

 be needed before we can define the range of variation in the 

 pinnules. 



