(4°4) 



Cretaceous of Bohemia. It is too imperfect for accurate 

 comparison and may belong in the genus Gangamopteris or 

 one nearly allied. I can not identify it with any species 

 heretofore described from America, as it is clearly different 

 from Fontaine's Thinnfeldia variabilis, which name he un- 

 doubtedly applied unintentionally to a totally different species 

 than that of Velenovsky, but it is too fragmentary to serve 

 as a basis for the description of a new species. 



Sclerophyllina dichotoma Heer. (?) (Plate 41, Fig. 10.) 



Fl. Foss. Arct. 1 : 82, pi. 4.4, fig. 6; ibid., 3: (Kreide-Fl.) 

 59, pi. 17, figs. 10, 11. 



This single fragment is too imperfect for anything but pro- 

 visional reference and might perhaps be equally well con- 

 sidered under some other closely allied genus, such as Jean- 

 paulia or Baiera, and in this connection it is of interest to 

 recall that Dr. Newberry provisionally referred a somewhat 

 similar fragment from the Amboy clays to Baiera incurvata 

 Heer. (Monog. U. S. Geol. Surv. 26: 60, fl. 10, fig. 6.) 



The reference to Sclerophyllina dichotoma Heer, a species 

 from the Kome beds, may be criticised on the general prin- 

 ciple that its presence in connection with undoubted middle 

 Cretaceous species would infer for it a very considerable 

 vertical range, but the same may be said in regard to Cim- 

 ninghatnitcs elcgans (Corda) Endl., with which it is asso- 

 ciated, in regard to which we are well assured, both as to 

 identity and range. 



Salix Meekii Newb. (Plate 41, Fig. 1.) 



Ann. N. Y. Lye. Nat. Hist. 9: p. 19. 1868. Later 

 Ext. Fl. N. Am., Monog. U. S. Geo. Surv. 35: 58,//. 2, 



fig- 3- 



This is the species referred by Lesquereux to S. cuneata 



Newb., in Illustrations of Cretaceous and Tertiary Plants, 



pi. 1, fig. j. It is apparently identical with certain forms of 



S. protcacfolia Lesq. (var. lanceolata Lesq. Fl. Dak. Group, 



Monog. U. S. Geol. Surv. 17: 50,//. 64, figs. 6-8). It 



