TRELEASE: THE ANCIENT OAKS OF AMERICA 499 



6. The following American fossil oaks require renaming because 

 their names are preoccupied in the genus: Q. affinis Knowlt., not 

 Scheidw. (Q. clarnensis n. nom.), Q. Breweri Lesq., not Wats. (Q. 

 Berryi n. nom.), Q. cimeata Newb., not Wang. (Q. Newberryi n. nom.), 

 Q. elliptica Newb., not Nee (Q. washingtonensis n. nom.), Q. latifolia 

 Lesq., not Steud. (Q. dryophyllopsis n. nom.), Q. laurifolia Newb., 

 not Michx. (Q. Penhallowi n. nom.), Q. montana Knowlt., not Willd. 

 (Q. Cockerellii n. nom.), Q. occidentalis Knowlt., not Gay (Q. van- 

 couveriana n. nom.), Q. pandurata Heer, not H. & B. (Q. alaskana n. 

 nom.), Q. salicifolia Newb., not Nee (Q. Eamesi n. nom.), Q. sinuata 

 Newb., not Walt. (Q. prae-undulata n. nom.), Q. Turneri Knowlt., 

 not Willd. (Q. prae-dumosa n. nom.). 



7. North American oaks ascribed to the Pliocene are Q. cates- 

 baeifolia Berry, Q. lamhertensis Berry, Q. nigra L. fide Berry, Q. 

 prae-virginiana Berry. See Berry, Professional Paper no. 98L, U. 

 S. Geol. Surv., p. 200. 



8. Brazilian Pliocene oaks are Q. hrasiliensis Krass., Q. Hussakii 

 Krass., Q. prae-mespilifolia Krass., Q. pseudodaphnes Krass. See 

 Krasser, Sitzungsber. K. Akad. Wien. 112^: 854. 



9. A summary analysis of existing American oaks is given by the 

 writer in Proc. Nat. Acad. Sci. 2: 626-9. 



10. Oersted, Bidrag til Kundskab om Egefamilien i Nutid og 

 Fortid (Vidensk. Selsk. Skr. Naturvid.-math. Afd. 5 ser. 6: 335), 

 Copenhagen, 1871: Chenes de 1' Amerique Trop., p. 6. 



11. Von Ettingshausen, Denkschr. K. Akad. Wien. Mathemat.- 

 Naturwiss. Classe. 63: 126. This discussion stands in relation with a 

 series of three largely illustrated "Beitrage zur Erforschung der 

 atavistischen Formen an lebenden Pflanzen und ihrer Beziehungen zu 

 den arten ihrer Gattung" {op. cit. 54: 245-254; 55: 1-38; 56: 47-68), 

 published jointly with Krasan. 



12. The following names of European fossil oaks employed in von 

 Ettingshausen 's comparison tables are preoccupied in the genus: Q. 

 affinis Sap., not Scheidw. (Q. paramoea n. nom.), Q. crassipes Heer, 

 not H. & B. (Q. pachypoda n. nom.), Q. undidata Web., not Torr. 

 (Q. cymaena n. nom.). 



13. Engelmann, Trans. Acad. St. Louis 3: 372; Bot. Works. 389. 



14. Von Ettingshausen, /. c. 125. 



