Maryland Geological Survey 389 



ISTageigpsis angustifolia Fontaine 

 Plate LXIII, Figs. 3, 4 



Nageiopsis angustifolia Fontaine, 1890, Mon. U. S. Geol. Surv., vol. xv, 1889 



p. 202, pi. Ixxxvi, figs. 8, 9; pi. Ixxxvii, figs. 2-6; pi. Ixxxviii, figs. 1, 3 



4, 6-8; pi. Ixxxix, fig. 2. 

 Nageiopsis angustifolia Fontaine, 1899, in Ward, 19tli Ann. Rept. U. S 



Geol. Surv., pt. ii, 1899, p. 684, pi. clxviii, fig. 7. 

 Nageiopsis angustifolia Fontaine, 1906, in Ward, Mon. U. S. Geol. Surv. 



vol. xlviii, 1905, pp. 219, 491, 516, 528, 560, pi. cxvii, figs. 4, 5. 

 Gephalotaxopsis ramosa Font. ? 1906, in Ward, Mon. U. S. Geol. Surv., vol 



xlviii, 1905, p. 547. 

 Nageiopsis angustifolia Berry, 1910, Proc. U. S. Natl. Mus., vol. xxxviii, p 



190. 



Description. — Much branched stems, of comparatively large calibre. 

 Leaves variable in size, becoming smaller on ultimate twigs, but constant 

 in their proportions; very long and narrow, linear-lanceolate, sometimes 

 somewhat falcate, acute, averaging about 3 mm. in width in some in- 

 stances only 1.5 mm. wide, greatest width observed 4 mm., length 2 

 to 7 cm., averaging about 5 cm.; veins of fine calibre, generally eight 

 in number, sometimes observed to fork at the base. An abundant species 

 suggestive of GepJialotaxopsis in general appearance. 



Occurrence. — Patuxent Formation. Fredericksburg, Dutch Gap, 

 Potomac Eun, Virginia ; 16th St., District of Columbia. Arundel For- 

 mation. Bay View, Md. Patapsco Formation. Federal Hill (Balti- 

 more), Vinegar Hill (?), Wellhams, Ft. Washington, Ft. Foote, Mary- 

 land; Mt. Vernon, Brooke, Virginia. 



Collection. — IT. S. National Museum. 



Family BRACHYPHYLLACEAE^ 



Genus BRACHYPHYLLUM Brongniart 

 [Prodrome, 1828, p. 109] 



The genus Brachyphyllum was proposed by Brongniart in 1828 for 

 conifers with short, fleshy, spirally arranged leaves attached by their 



^ Consistent with, the avowed policy of the writer not to crowd the Lower 

 Cretaceous flora into the confines of the Taxonomic bounds inherited from a 

 study of the existing fiora from which the former is separated by many 

 millions of years, a new family is demanded for these peculiar Mesozoic 

 types. 



