406 Systematic Paleontology 



fragment has been described from the Trinity Group of Texas as Aiie- 

 tites Linkii (Eoemer) Dunker. 



These cones are comparable with a number of previously described 

 species and they are especially close to Pinites Solmsi Seward from the 

 English Wealden as the latter author has already pointed out. From 

 the foliage preserved with the English cones, which is identical with 

 what Professor Fontaine referred to as Leptostrohus, it is possible that 

 the latter type of foliage was borne by the tree which furnished the 

 cones described above. 



Occurrence. — Patuxent Fokmation". Broad Creek, Maryland; 

 Fredericksburg, Dutch Gap, Virginia. Arundel Formation. Arling- 

 ton, near Lansdowne, Maryland. Patapsco Formation. Vinegar Hill 

 (common). Ft. Foote, Maryland. 



Collections. — U. S. National Museum, Johns Hopkins University. 



Abietites marylandicus Fontaine 

 Plate LXVII, Figs. 5, 6 



Abietites marylandicus Fontaine, 1906, in Ward, Mon. U. S. GeoL Surv., 



vol. xlviii, 1905, p. 549, pi. cxv, figs. 4, 5. 

 Abietites marylandicus Berry, 1911, Proc. U. S. Natl. Mus., vol. xl, p. 314. 



Description. — Obscure impression of a narrowly oblong cone about 

 15 mm. wide and about 4 cm. long, covered with closely placed, trans- 

 versely elongated rhomboidal scars. The very stout peduncle might be 

 taken to indicate a stout cone with thin scales of which only the basal 

 portions were retained in the fossil. The relation of this cone to the 

 preceding species is altogether doubtful, it is retained in this genus 

 since the preservation is so vague that any effort to determine its true 

 affinity would be futile. 



In some respects it suggests the staminate cone of a cycad and it may 

 also be compared with cones of the coniferous genus Geinitzia which are 

 characteristic forms in the Albian, Cenomanian and Senonian. There 

 is also the possibility that the present material represents the poorly 

 preserved cones -of Pinus vernonensis Ward which is so common at 



