FOSSIL FLORA. 655 



The Thunderer, opposite Soda Butte; F. H. Kuowlton and G. E. Culver, August 

 29, 1S8S. 



East bank of Lamar River, between Cache aud Calfee creeks; F. H. Knowltou 

 arid G. E. Culver, August 21, 18SS. 



Hill on road just above Yanceys; F. H. Knowltou, August 6, 1SS8. 



Hill near the Yancey fossil trunks; F. H. Knowltou, August 28, 1888. 



Mount Everts, near summit of west end; F. H. Kuowlton, July 27, 1888. 



Mount Everts, coal opening on side facing the Gardiner River (fragments) ; F. H. 

 Knowltou, July 26, 188S. 



DESCRIPTION OF KNOWN FOSSIL PLANTS FROM THE LARAMIE 

 OF THE YELLOWSTONE NATIONAL PARK. 



ASPLENIUM HAGUEI 11. sp. 

 PI. LXXYII, figs. 1, 2. 



Frond thin, delicate, lanceolate in outline, bipinnate, slender, straight; 

 pinnae alternate, scattered, oblong-lanceolate in shape, cut into few coarse 

 divisions which are either entire or again cut into few obtuse teeth; nerva- 

 tion obscure, consisting of a delicate liiidvein and few forked branches 

 from it. 



This delicate little form is represented by a dozen or more specimens. 

 The longer fragment (fig. 2) is about 4.5 cm. in length and about 1.5 cm. 

 broad. The others are more fragmentary. 



Nothing like this has been before reported from the Laramie group. It 

 has some resemblance to Sphenopteris guyottii Lx., 1 from the Green River 

 group at Florissant, Colorado, but is much smaller and of decidedly differ- 

 ent shape. 



It is not certain that it belongs to the genus Asplenium, as no fruit has 

 been observed, but it resembles, at least generically, a number of forms 

 so referred from the Cretaceous of Greenland. For the present it may be 

 retained in this genus. 



I have named it in honor of the collector, Mr. Arnold Hague, of the 

 United States Geological Survey. 



Habitat: North of Pin von Peak, on "Wolverine Creek, Yellowstone 

 National Park; collected by Arnold Hague, August 10, 1887. 



1 Cret. and Turt. Fl., p. 137, PI. XXI, figs. 1-7, 1883. 



