390 GEOLOGICAL SURVEY OF THE TERKITORIES. 



resembles the figure of this species as given in the Groenl. Flora, PI. 1, 

 Fig. 20. It is, however, longer, and the lateral veins are stronger. The 

 borders, mostly erased, appear obtusely crenate. 



JUGLANS RUGOSA, Lsqx. 



Broken specimens of a large form of this species. 



There are still a number of small fruits or seeds, which should be 

 named from Carbon specimens. As their relation to living species is as 

 yet unknown, it is impossible to describe them clearly enough to give a 

 good ideaof their forms, without figures. Among them is that CarpoHilies 

 cocculoides, Heer, in llept. 1871, p. 290, which I have found also at Golden, 

 Black Butte and E vanston. They are reserved for publication in a final 

 report. 



The upper shales, where the leaves and most of the fruits were found, 

 near the Carbon mines, are, though hard, easily disagreggated under 

 atmospheric influence. They are formed of sandy grayish clay and con- 

 tain small Tertiary species of niollusks mixed with the vegetable re- 

 mains. These are very distinct, their surface being coated by a pellicle 

 of coaly matter. Could there be some fresh shale obtainable, one might 

 have at Carbon rich and valuable specimens for the study of the botan- 

 ical paleontology of the Upper Lignitic. 



Blade Butte Station. 



The largest part of the specimens from this locality are from a bed of 

 sandy yellow, somewhat hard shale overlying the main coal, in follow- 

 ing the bed behind the hills, back of the opening into the vein. The 

 shale splits horizontally, and the leaves may be, with some care, 

 obtained in a good state of preservation. A number of specimens 

 described separately were found at a higher level ; at one place in con- 

 nection with Saurian bones, at another with small Tertiary shells. 



SPHERIA MyRIG^, S][). 110V. 



A small species upon leaves of Myrica Torreyi, Lsqx., forming rings 

 1 mill, in diameter, with round black borders and very small, scarcely 

 perceptible, scattered perithecia. liesembles Xylomites varmsj Heer, 

 Fl. Tert. Helv., PI. i. Fig. 9. 



Opegrapha antiqua, sp. nov. 



Nucleous linear, from 1 to 4 mill, long, larger in the middle, pointed 

 at both ends, either single or united in two or three in oi)posite direc- 

 tions, sometimes flexuous ; perithecium thick, split in the middle, hard. 



The specimen shows the print or counterpart of this species molded 

 into clay, where the nuclei have been either left imbedded or have 

 marked their forms very distinctly. They grew upon a large stem of 

 Caulinites sparffanioidcs, Lsqx. 



IlALIMENITES MAJOR, Lsqx. 



Described above from the Eaton Mountains. The finest specimens 

 of this species are seen in the sandstone below the coal of this locality. 



