FOSSIL FLOKA. 655 



The Thiuulerer, opposite Sod;i Hutte; F. H. Ivmiwltou and (t. V.. Culver. August 

 29, 1S8S. 



East bank of Lamar IJiver, betweeu Cache and Calfee creeks: F. H. Kuowltou 

 and G. E. Culver, August 21, 1888. 



Hill on road. just above Yanceys: F. H. Knowlton, August G, 1888. 



Hill near the Yancey fossil trunks; F. II. Knowlton, August 28, 18SS. 



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



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

 Knowlton, July 26, 188s. 



DESCRIPTION^ OF KXOWxN FOSSIL PLANTS FROM THE LARAMIE 

 OF THE YELLOWSTONE NATIONAL PARK. 



ASPLENIUM HAGUEI U. sp. 



PI. LXXVII, figs. 1, 2. 



Fi'oiid thin, (k'licate, lanceolate in outline, l)ipinnate, slender, .straight; 

 pinna; alternate, scattered, oblong-lanceolate in sha|)e, cut into few coarse 

 divisions w hich are either entire or again cut into few olituse teeth; nerva- 

 tion ohscinv, consisting of a delicate midvein and few forked liranches 

 from it. 



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

 The longer fragment (tig. 2) is about 4.5 cm. in length and abotit l.n cm. 

 broad. The others are more fragmentary. 



Nothing like this has been l)efore rejjorted from the Laramie group. It 

 has some resemblance to Sphcnopterls giit/ottii Lx.,^ from the Green liiver 

 group at Florissant, Colorado. Ijut is much smaller and of decidedlv ditier- 

 ent sliajte. 



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

 Iteen observed, but it resembles, at least generically, a luimber of forms 

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

 retained in this genus. 



I have named it in honor of the collector, ]\Ir. Arnold Hague, of the 

 United States Geological Survey. 



Habitat: North of Pinyon Peak, on Wolverine Creek, Yellowstone 

 National Park; collected b^' Arnold Hague, August 10, 1887. 



' Ciet. auil Tort. Fl., p. 1S7. PI. XXI, figs. 1-7, 1883. 



