MAEYLAND GEOLOGICAL SURVEY 777 



variable during the early Upper Cretaceous. Similar remains of smaller 

 size are said by Hollick and Jeffrey to have been three-seeded, and in spite 

 of this feature to be related structurally to the Araucariacece. 



The present species is not very different and may be identical with 

 Dammara borealis Heer, which ranges northward to Greenland (Atane 

 beds) and southward to Alabama (Tuscaloosa formation). 



Occurrence. MAGOTHY FORMATION. Little Eound Bay, Anne Arundel 

 County. MATAWAN FORMATION. Cut on the W. B. & A. Eailroad, three- 

 quarters of a mile east of Millersville, Anne Arundel County. 



Collection. Maryland Geological Survey. 



Genus ARAUCARIA Jussieu 

 [Gen. PL, 1789, p. 413] 



ARAUCARIA BLADENENSIS Berry 

 Plate LIV, Fig. 1 



Araucaria bladenensis Berry, 1908, Bull. Torrey Bot. Club, vol. xxxv, p. 



255, pis. xii, xiii, xiv, figs. 1-3. 



Araucaria bladenensis Berry, 1911, Ibidem, vol. xxxviii, p. 405. 

 Araucaria bladenensis Berry, 1914, Prof. Paper U. S. Geol. Survey, No. 84, 



pp. 19, 105, pi. iii, figs. 6, 7; pi. xix, figs. 1, 2. 



Description. Foliage dense, phyllotaxy spiral, leaves decurrent, coria- 

 ceous, ovate-lanceolate, about 1.6 cm. by 8 cm., the base rounded, apex 

 thickened, cuspidate ; veins immersed, averaging sixteen in number, 

 straight, parallel, stomata small, in rows on ventral surface. 



Leaves ranging from 1 cm. to 2.8 cm. in length by 0.5 cm. to 1.2 cm. in 

 width, averaging 1.6 cm. by 0.8 cm., obovate in outline, with a broad 

 rounded base narrowing abruptly and decurrent ; the blade broadest about 

 one-third of the distance from the base, above which point it narrows 

 rapidly to a thickened cuspidate tip; phyllotaxy spiral; leaf substance 

 represented by a thick sheet of lignite about 0.5 mm. thick, in which 

 the veins are immersed. These veins average fourteen to sixteen in num- 

 ber, although occasionally there may be as many as twenty ; they are stout, 

 incurved at the base (forking not observed), becoming parallel and run- 

 ning directly upward until they abut against the leaf margin, i. e., not 



