86 Ward Fossil Oycadean Trunk* of North America. 



Cycadeoidea Marylandica (Font.) Cap. & Solms. 



18GO. Cycas sp. Tyson, First Report State Agric. Chem. Maryland, p. 42. 

 1870. Bennettites sp. Carruthers, Trans. Linn. Soc. Lond., Vol. XXVI, 



p. 708. 

 1879. Cycadeoidea sp. Fontaine, Am. Journ. Sci. 3dSer., Vol. XVII, p. 



157. 



1889. Tysonia Marylandica Fontaine, Flora of the Potomac Formation, 



p. 193, pi. clxxiv-clxxx. 

 1892. Cycadeoidea Marylandica (Font.) Cap. & Solms, Mem. Real. Accad. 



Sci. 1st, Bologna, Ser. V, Tom. II, pp. 179, 180, 18>. 

 Potomac formation (Lower Cretaceous) at various points in Maryland, 

 chiefly along the Baltimore and Ohio Railroad between Washington and 

 Baltimore and in the vicinity of the latter city. 



Cycadeoidea Emmonsi Font. sp. 



18-)7. Trunk of a cycad Emmons, American Geology, Vol. VI, pp. 123, 

 J24; fig. 92a. 



1883. Zamiostrobus Emmonsi Fontaine, Older Mesozoic Flora, p. 117, 



pi. lii, fig. 5. 



Upper Trias of North Carolina, exact locality not known. 

 Judging from the excellent figure of Dr. Emmons, of which that of 

 Professor Fontaine is not a true reproduction, I consider it much more 

 probable that this was a "trunk of a cycad" than that it was a strobile. 



Cycadeoidea mirabilis Lx. sp. 



1876. Zamiostrobus mirabilis Lx., Bull. U. S. Geol. and Geogr. Surv. 

 Terr., Vol. 1, 2d Ser., No. 5, p. 383 (issued January 8, 1876); 

 Hayden's Ann. Rep. U. S. Geol. and Geogr. Surv. Terr, for 

 1874, p. 309. 

 1878. Tertiary Flora, p. 70, pi. Ixiii, figs. 1, la. 



1884. Nelumbium sp. James. Science, Vol. Ill, p. 434. 



1884. Clathropodium 'mimbilie (Lx.) Ward, Science, Vol. Ill, pp. 532 

 533. 



1890. Bennettites mirabilis (Lx.) Solms, in litt. (Sept. 10). 



1892. Cycadeoidea Zamiostrobus Solms, Mem. Real. Accad. Sci. 1st. 



Bologna, Ser. V, Tom. II, pp. 210, 211. 



Found lying on the surface of the ground near Golden, Colorado, in the 

 Lararnie terraue, but probably belonging to a more ancient formation from 

 which it had been transported. 



Cycadeoidea munita Cragin. 

 1889. Cycadeoidea munita Cragin, Bull. Washburn College Lab. Nat. 



Hist., Topeka, Kansas, Vol. II, No. 10, pp. 65, 66. 



Cheyenne Sandstone, Trinity Division of the Comanche Series (Lower 

 Cretaceous), at Cheyenne Rock, Belvidere, Southern Kansas. 



Cycadeoidea Dacotensis McBride sp. 



Bennettites Dacotensis McBride, American Geologist, Vol. XII, p. 

 249, pi. xi, figs. 1, 2; Bull. Lab. Nat. Hist. State Univ. of 

 Iowa, Vol. II, No, 4, p, 391, pi. xii, figs. 1, 2. 



