MARYLAND GEOLOGICAL SURVEY 883 



in their course. Secondaries relatively stout, numerous, subparallel, 

 camptodrome in those parts of the leaves where the margin is entire, a 

 lesser or greater number craspedodrome in leaves or parts of leaves where 

 the margin is dentate. 



This species was described by Lesquereux from the Dakota sandstone 

 as a form of Sassafras. It may be distinguished from the type by its 

 usually smaller size and its more or less toothed margin. It is not com- 

 mon and may not be entitled to even varietal rank. 



Occurrence. RARITAN FORMATION. Bull Mountain, Cecil County. 



Collection. Maryland Geological Survey. 



ARALIOPSOIDES CRETACEA SALISBURI^EFOLIA (Lesquereux) Berry 

 Plate LXXXVI, Fig. 1 ; Plate LXXXVII, Figs. 2, 3 



Populites salisburicefolia Lesquereux, 1868, Amer. Jour. Sci. (ii), vol. xlvi, 



p. 94. 

 Sassafras obtusus Lesquereux, 1872, 5th Ann. Kept. U. S. Geol. Survey Terr. 



(Hayden), 1871, p. 303. 

 Sassafras obtusus Lesquereux, 1873, 6th Ann. Kept. U. S. Geol. Survey, Terr. 



(Hayden), 1872, p. 424. 



Sassafras obtusum Lesquereux, 1874, Cret. FL, p. 81, pi. xiii, figs. 2-4. 

 Sassafras (AraliopsisJ cretaceum obtusum Lesquereux, 1874, Cret. FL, p. 80, 



pi. xii, fig. 3; pi. xiii, fig. 1. 

 Cissites obtusum Lesquereux, 1876, 8th Ann. Rept. U. S. Geol. Survey Terr. 



(Hayden), 1874, p. 354. 



Sassafras (AraliopsisJ obtusum Lesquereux, 1883, Cret. and Tert. PI., p. 56. 

 Cissites salisburicefolius Lesquereux, 1883, Cret. and Tert. Fl., p. 66. 

 Cissites salisburi&folius Lesquereux, 1892, Mon. U. S. Geol. Survey, vol. 



xvii, p. 164. 

 f Sassafras cretaceum Newberry, 1898, Mon. U. S. Geol. Survey, vol. xxxv, 



pi. viii, fig. 1. 

 Cissites salisburitefolius Ward, 1899, 19th Ann. Rept. U. S. Geol. Survey, 



pt. ii, p. 707, pi. clxxi, fig. 5. 

 Araliopsis cretacea salisburicefolia Berry, 1911, Bull. Torrey Bot. Club, vol. 



xxxviii, p. 416. 



Description. Leaves of variable size ; trilobate in general outline ; with 

 a decurrent base ; and broad, usually but slightly developed, rounded lobes. 

 Length ranging from 7 cm. to 13 cm. Maximum width, about midway 

 between the apex and the base, ranging from 6 cm. to 15 cm. Margins 

 entire. Texture subcoriaceous. Lobes usually wider than long, separated 



