712 GEOLOGY OF THE YELLOWSTONE NATIONAL PARK. 



Ulmus rhamixfolia? Wnrd. 

 Ulmvs rhaminfoMu Ward: Types of the Laraiuie Fl., p. 45, PL XXIII, flg. 5. 



This species is also represented by a sino-le, much broken leaf, with only 

 a small portion of the margin preserved. It has the size and nervation of 

 Professor Ward's species, and is with hardly any doubt the same. 



Habitat: Yellowstone River, one-half mile below the mouth of Elk 

 Creek, top of bluff; collected by F. H. Knowlton, August, 1888. 



Ulmus, fruits of. 

 PI. LXXXVIII, figs. 3, 4. 



As it is impossible to determine the species of Ulmus to which these 

 fruits belong, or properly to characterize them, I have preferred to leave 

 them unnamed specifically. 



Haliitat: Yellowstone River one-half mile below mouth of Elk Creek, 

 top of bluff; collected by F. H. Knowlton, August, 1888. 



Planera longifolia Lx. 



Planera longi/oUa Lx.: Tert. Fl., p. 189, PI. XXVIl, figs. 4-6; Cret. and Tert. FL, 

 p. 161, PI. XXIX, figs. 1-13. 



The collection contains some 40 more or less well-preserved examples 

 of this species, which agree very well indeed \\'ith the various figures 

 given by Lesquereux. A number are so well preserved that the finer 

 nervation is retained. The nervilles are numerous, parallel, and mainly 

 percurrent. 



Habitat: Fossil Forest Ridge, bed No. 3 (30 specimens); bed No. 5 

 (10 specimens); collected by Ward and Knowlton, August, 1887. 



ITRTICACEiE. 



FiCUS DEFORMATA n. Sp. 

 PI. XC3I, flg. 2. 



Leaf large, thick, long-obovate, slightly unequal-sided at base, abruptly 

 rounded above to an obtuse apex and rather abruptly narrowed below; 

 margin entire, conspicuously indented or deformed on one side, the margin 

 of indentation rounded; midril^ thick; secondaries thick, 10 or 12 pairs, 



