MARYLAND GEOLOGICAL SURVEY 869 



Occurrence. KARITAN FORMATION. Brightseat, Prince George's 

 County, Maryland; East Washington Heights, District of Columbia. 

 MAGOTHY FORMATION. Grove Point, Cecil County, Maryland. 



Collection. Maryland Geological Survey. 



Order MYRTALES 



Genus EUCALYPTUS Auct. 



EUCALYPTUS ? ATTENUATA Newberry 



Eucalyptus ? attenuate. Smith, 1894, Geol. Coastal Plain Ala., p. 348 (nomen 



nudum). 

 Eucalyptus ? attenuata Ward, 1895, 15th Ann. Kept. U. S. Geol. Survey, p. 



371 (nomen nudum). 

 Eucalyptus ? attenuata Newberry, 1896, Mon. U. S. Geol. Survey, vol. xxvi, 



p. iii, pi. xvi, figs. 2, 3 (non fig. 5). 

 Eucalyptus ? attenuata Berry, 1906, Ann. Kept. State Geol. Survey of New 



Jersey for 1905, p. 138. 

 Eucalyptus ? attenuata Berry, 1906, Bull. Torrey Bot. Club, vol. xxxiii, p. 



180. 



Eucalyptus ? attenuata Berry, 1907, Ibidem, p. 203. 

 Eucalyptus f attenuata Berry, 1911, Bull. 3, Geol. Survey of New Jersey, 



p. 195, pi. xxviii, fig. 6. 



Description. Leaves lanceolate in outline, 9 cm. to 12 cm. in length by 

 1.5 cm. to 2 cm. in greatest width, which is in the basal half of the leaf. 

 Margin entire, somewhat undulate in some specimens. Apex narrow and 

 produced, acutely pointed. Base cuneate. Petiole stout, 1 cm. to 2 cm. 

 in length. Midrib stout, especially in its lower part. Secondaries numer- 

 ous, branching from the midrib at an acute angle, reticulate-camptodrome. 



This species has little in common with the leaves usually referred to 

 this genus, except its outline, which is also that of a great many unallied 

 genera. It is somewhat suggestive of some of the leaves referred to Lauro- 

 pliyllum, in fact many possible relationships could be suggested, all of 

 which possess equal elements of uncertainty. 



This species is common in the upper Earitan and has a recorded range 

 of considerable extent in somewhat later formations. It is recorded from 



