FOSSIL FLORA. 715 



examples are fully 25 cm. long and nearly or quite 10 cm. broad. They 

 are broadly obovate, being broadest usually above the middle. At base 

 the leaves are narrowed into a small rounded, truncate, or even heart- 

 shaped part. Above they appear rather abruptly narrowed into an obtuse 

 apex. 



The nervation is strongly marked. The midrib is very thick, as are 

 most of the secondaries, especially in the middle, when they pass to the 

 broad portion of the blade. They are then alternate, thick, and sometimes 

 forked, and not rarely branched on the outside. The secondaries and their 

 branches are arched and joined by broad bows. 



Habitat: Southeast side of Crescent Hill, largest specimen (PI. 

 LXXXIX, fig. 1) ; Yellowstone River, one-half mile below mouth of Elk 

 Creek, one peculiar, somewhat doubtful, specimen; also one from base of 

 bluff (PL XC, fig. 1); hill above Lost Creek, typical specimen. All of the 

 above collected by F. H. Knowlton, August, 1888. Specimen Ridge, Fossil 

 Forest, opposite Slough Creek, "Platanus bed" and bed 100 feet above 

 same; specimens numerous; collected by Lester F. Ward and E. C. 

 Alderson, August 25, 1887. Fossil Forest Ridge, bed No. 5, "Salix bed," 

 one broken specimen; collected by Ward and Knowlton, August 9, 1887. 



Ficus haguei n. sp. 

 PI. XO, fig. 3. 



Leaf thick, broad, rounded-ovate, apparently rounded and truncate at 

 base and rather abruptly acuminate at apex; margin entire; midrib thick, 

 perfectly straight; leaf palmately 3-ribbed from above the base, appar- 

 ently a pair of thin secondaries originating from or near the base of the 

 lamina, then a pair of very strong subalternate ribs or secondaries, at an 

 angle of about 45°, which arch upward; above this pair, in the upper 

 part of the blade, are 4 or 5 pairs of alternate thinner secondaries at a 

 lower angle; all of the secondaries are joined some distance from the 

 margin by a broad loop, with another series of smaller loops outside 

 these, at least in the lower portion of the leaf; a number of irregular inter- 

 mediate secondaries occur between the primary secondaries; nervilles thin, 

 irregular. 



The specimen figured is the only representative of this strongly char- 

 acterized species. It unfortunately lacks both base and apex, but the por- 



