824 SYSTEMATIC PALEOXTOLOGY 



occur at the same localities cannot be determined. The present species 

 is one of the commonest post-Raritan and pre-Montana fossils in the 

 Coastal Plain, and it is especially abundant in the Middendorf forma- 

 tion of South Carolina. In Alabama it is not uncommon in the Tusca- 

 loosa formation and it persists into the basal Eutaw beds in Hale County. 



Occurrence. MAGOTHY FOKMATIOX. Grove Point, Cecil County. 



Collection. Maryland Geological Survey. 



Order PLATANALES 

 Family PLATANACEAE 



Genus PLATANUS Linne 

 [Sp. PL, 1753, p. 999] 



PLATANUS HEERII Lesquereux 

 Plates LXV, LXVI, LXVII 



Platanus heerii Lesquereux, 1872, Ann. Kept. U. S. Geol. Survey, Terr. 



(Hayden) for 1871, p. 303 (non Ward). 

 Sassafras recurvatus Lesquereux, 1873, Ann. Kept. U. S. Geol. Survey, 



Terr. (Hayden) for 1872, p. 424 (non Heer 1882). 

 Platanus heerii Lesquereux, 1874, Cret. FL, p. 70, pi. viii, fig. 4; pi. ix, 



figs. 1, 2. 

 Platanus recurvata Lesquereux, 1874, Cret. FL, p. 71, pi. x, figs. 4, 5 (non 



fig. 3). 



? Platanus heerii Lesquereux, 1878, Kept, on Clays in New Jersey, p. 29. 

 Platanus heerii Heer, 1882, FL Foss. Arct., Bd. vi, Ab. ii, p. 72, pi. vii, figs. 



1, 2; pi. viii, figs. 1, 2a; pi. ix, figs. 1-4. 

 f Platanus heerii Lesquereux, 1883, Cret. and Tert. FL, p. 44, pi. iii, fig. 1; 



pi. vii, fig. 5. 

 Sassafras (Araliopsis) recurvatum Lesquereux, 1883, Cret. and Tert. FL, p. 



57 (pars). 

 Sassafras cretaceum recurvatum Berry, 1902, Bot. Gazette, vol. xxxiv, p. 



438. 



Platanus heerii Berry, 1910, Bull. Torrey Bot. Club, vol. xxxvii, p. 23. 

 Platanus heerii Berry, 1911, Ibidem, vol. xxxviii, p. 411. 



Description. Leaves broadly rhomboidal in outline, more or less trilo- 

 bate. Lobes, when developed, short and obtuse. Base decurrent. Petiole 

 long and stout. Margin sublobate, undulate or irregularly dentate. 

 Texture coriaceous. Primaries three, stout, diverging at acute angles. 

 The lateral primaries are as stout as the midrib from which they branch 



