34 DESCRIPTION OF SPECIES. 



The specimen, fig. 8, shows the impression of three unopened globular, 

 naked nutlets, which, as seen in figs. 8a and 8c, appear to contain small 

 seeds which, in fig. 8c, are obcordate and inflated. These three last figures 

 are all spread upon the same specimen with fig. 8. 



The relation of this fragment to Inolepis is not certain. The fruits 

 found mixed with a mass of decayed and broken remains of conifers may 

 be considered as indeterminable, even in their generic relation, until better 

 specimens are obtained. 



Eah. — Dakota Group of Kansas. 



MONOCOTYLEDONES. 



GLUMACE^. 



PHRAGMITES, Adans. 

 Phragmites cretaceus, Lesqz. 



"U. S. Geol. Rep.," vi, p. 55, pi. i, figs. 13 and 14; pi. xxix, figs. 7, 7a. 



Leaves and culms iu fragments of various sizes; leaves lanceolate, blunt at the 

 apex, doubly nerved; primary nerves thick or inflated under the thick epidermis, under 

 which the intermediate veinlets, three or four, are discernible. 



The fragmentary state of the first specimens found afforded reason- 

 able doubt of their reference to this genus. But remains of plants of 

 analogous character have been since discovered in the Upper Cretaceous 

 of Greenland and described as Arundo Gronlandica, Heer, "Fl. Arct.."' iii, 

 p. 104, pi. xxviii, figs. 8-11. In this species the primary nerves do not 

 appear separated by any intermediate veinlets, at least none could be 

 observed by Professor Heer. This difference, and also the great size of 

 the leaf, pi. xxix, fig. 7 of the Rep., I. c, evidently separate the species. 



DIOSCOREiE. 



DIOSCOREA, Plum. 



Dloscorea? eretacea, Lesqz. 

 " U. S. Geol. Eep.," t1, p. 56, pi. xxviii, fig. 10. 



PALM^. 



FLABELLAEIA, St. 



Flabellaria? luiuima, Lesqx. 

 "U. S. Geol. Rep.," vi, p. 56, pi. xxx, fig. 12. 



