218 I. C. WHITE FOSSIL PLANTS FROM TEXAS. 



Sphenophyllum latifolium, F. & \V. Pecopteris lanceolata, F. & W. 

 " filiculme, Lx. " platynervis, F. & W. 



Annularia, near radiata, Brt. " latifolia, F. eV' W. 



Wnlcliiii. sp. ? •• imbricata, F. & W. 



Odontopteris nervosa, F. &. \V. ; ' tenuinervis, F. & W. 



Callipteris conferta, Brt. " scpimperiana, F. & W. 



Callipteridium oblongifolium, F. & W. rotund/folia, F. & W. 



dawsonianum, F. & \V. candolleana, F. & \Y. 



grandifolium, F. & \\ T . Goniopteris oblonga. F. £ W. 



iMwtam, F. & W. 



A few other new or indeterminable forms were present, one badly 

 preserved specimen resembling Lepidodendron. 



Professor Fontaine appends the following remarks concerning the geo- 

 logical horizon of the plants in question : 



" I am decidedly of the opinion that this Texas flora is essentially the 

 same with the flora described by us in report PP of the second geo- 

 logical survey of Pennsylvania. The Walchia is the only important 

 determinable plant not present in the flora of West Virginia and Penn- 

 sylvania." 



This conclusion of Professor Fontaine exactly confirms my own as 

 given in Bulletin 65, United States Geological Survey, page 42, before I 

 had seen the plants in question. 



It follows from the evidence of this list of plants, as well as from 

 general stratigraphic facts, that the age of these uppermost rocks of the 

 ( 'arboniferous system in West Virginia, southwestern Pennsylvania and 

 southern Ohio, or the Dunkard Creek series,* as I have termed these 

 deposits above the horizon of the Waynesburg coal, is the same as that 

 of the Wichita beds of Texas ; and if the latter be referable to the Per- 

 mian on the basis of their reptilian and invertebrate remains, then geol- 

 ogists can no longer refuse to recognize the Permian age of the Dunkard 

 Creek series, since, as shown by the list given above, every determinable 

 plant sent me from the Wichita Series except one {Walchia) has been 

 found in the Dunkard Creek beds. 



The plants of this list were collected by Mr. Cummins from the upper 

 portion of the Wichita at the head of Godwins creek, Baylor county. 

 Texas, and from three miles west of Antelope, Texas. 



* Bulletin 65, U. S. Geol. Survey, 1891, p. 20. 



