also are fagaceous in their general characters ; but I have failed 

 to make entirely satisfactory comparison with similar parts of 

 species in any existing genus of the family ; although several 

 paleobotanical writers have referred certain fossil leaves more 

 or less similar to ours in nervation and dentition to Fagus and 

 Castanca. * 



Taking all of these facts into consideration, therefore, the course 

 which appears to be least open to objection is to regard the speci- 

 mens as belonging to a species of an extinct fagaceous genus and 

 to redescribe it under a new generic name. 



Fagopsis longifolia (Lesq.) comb. nov. 

 Plancra longifolia Lesq., Sixth Ann. Rept. U. S. Geol. Surv. 



Terr. 1872 : 371. 1873. 

 Fagus longifolia (Lesq.) Hollick and Cockerell, Bull. Amer. Mus. 



Nat. Hist. 24 : 88 (footnote). 1908. 



General arrangement of growth of leaves and fruit on terminal 

 branchlets similar to that of Fagus Americana Sweet ; leaves 



Pig. I. Fagopsis longifolia ['Ltsi\.) Hollick. Nat. size showing immature fruit. 



* Fagus dentata Goepp. Paleontogr. 2 : 274. pi. 24. f. j. 1852 ; Hear, Fl. 

 Foss. Arct. I : //. 10. f. 2, jb, g ; Gaudin and Strozzi, Mem. Gisem. Feuilles 

 Foss. Toscane i : //. 6. f. § ; pi. J. f. 1. 



Fagus castanenefolia Ung. , Synops. Plant. Foss. 218. 1845; Chlor. Prot., 104, 

 //. 2S. f. I. 1847; Heer, /. c, f. ja, 8. {= Castanea castaneaefolia (Ung.) 

 Knowlton, Bull. U. S. Geol. Surv. No. 152, 60.) Etc. 



