Maryland Geological Survey 405 



foliage in the English Wealden is in organic union with cones of the 

 Abietites macrocarpus type/ it seems eminently proper in the treatment 

 of the American material to associate this type of foliage with the 

 corresponding type of cone. 



Abietites macrocarpus Fontaine 

 Plate LXVII, Figs. 1-4 



Abietites macrocarpus Fontaine, 1890, Mon. U. S. Geol. Surv., vol. xv, 1889, 



p. 262, pi. cxxxii, fig. 7. 

 Abietites ellipticus Font., 1890, Mon. U. S. Geol. Surv., vol. xv, 1889, p. 263, 



pi. cxxxii, figs. 8, 9; pi. cxxxiii, figs. 2-4; pi. clxviii, fig. 8. 

 Abietites angusticarpus Font., 1890, Mon. U. S. Geol. Surv., vol. xv, 1889, 



p. 263, pi. cxxxiii, fig. 1. 

 Abietites californicus Fontaine, 1894, in Diller and Stanton, Bull. Geol. 



Soc, Am., vol. V, 1894, p. 450 (nomen nudum). 

 Abietites angusticarpus Font., 1899, 19tli Ann. Rept. U. S. Geol. Surv., pt. ii, 



p. 671, pi. clxiii, fig. 14. 

 Abietites angusticarpus Font., 1906, in Ward, Mon. U. S. Geol. Surv., vol. 



xlviii, 1905, pp. 528, 538, 556, 572, pi. cxiv, fig. 10. 

 Williamsonia ? Bibbinsi "Ward, 1906, in Fontaine, in Ward, Mon. U. S. 



Geol. Surv., vol. xlviii, 1905, p. 554, pi. cxv, fig. 11. 

 Abietites ellipticus Fontaine, 1906, in Ward, Mon. U. S. Geol. Surv., vol. 



xlviii, 1905, p. 260, pi. Ixviii, fig. 14. 

 Abietites macrocarpus Font., 1906, in Ward, Mon. U. S. Geol. Surv., vol. 



xlviii, 1905, pp. 261, 547, pi. Ixviii, figs. 15, 16; pi. cxv, figs. 2, 3. 

 Abietites macrocarpus Berry, 1911, Proc. U. S. Natl. Mus., vol. xl, p. 313. 



Description. — Large^, stout cones, with a stout axis and numerous 

 long, thin, imbricated, appressed scales. The various specimens vary 

 considerably in length and appearance, and all are much macerated and 

 poorly preserved. The author is unable to find good characters for the 

 separation of the forms included in the foregoing synonym}^, the sup- 

 posed Williamsonia being nothing but a cone fragment vertically com- 

 pressed as Prof. Ward surmised. 



Described, originally from Fredericksburg and Dutch Gap, Virginia, 

 it has since been identified in the 'Horsetown beds of California and 

 the Fuson formation of the Black Hills, while a very similar cone- 



^ Seward, Wealden Fl., pt. ii, 1895, p. 197, pi, xviii, figs. 2, 3; pi. xix, see 

 especially pi. xviii, fig. 2. 



