I90 THE RARITAN FLORA. 



Rollick, Ann. N. Y. Acad. Sci., vol. .11:60. pi. 4. f. 1-3, 



1898; Mon. U. S. Geol. Surv., vol. 50 : 96, pi. 33, f. 1-8, 



10-12, 1907. 

 Berry, Bull. N. Y. Bot. Garden, vol. 3 : 87, pi. 53, /. 3, 1903 ; 



Bull. Torrey Club, vol. 31 : 78, pi. 4, f. 3, 1904; Ibid., 



vol. 33 : 180, 1906; Ibid., vol. 34 : 201, pi. 13, f. 4, 1907. 

 MyrtophyUuni Warderi Lesq., Fl. Dakota Group, 136, pi. 33, f. 



10, 1892. 

 Hollick, Mon. U. S. Geol. Surv., vol. 50:97, pi 33, f. 13, 



1907. 

 Eucalyptus ? angustifolia Newb.. (non Desv. 1822) Fl. Amboy 



Clays, III, pi. 32, f. I, 6, /, 1896. 

 Hollick, Bull. N. Y. Bot. Garden, vol. 3 : 408, pi. 70, f. 8, 



p, 1904; Mon. U. S. Geol. Surv., vol. 50:95, pi. 33, f. 



p, 14, 13. 1907. 



Description. — "M. foliis petiolatis, co'riaceis, anguste lanceo- 

 latis, nervis secundariis sub-angulo acuto egredientibus." Heer, 

 1872. 



A very large number of somewhat variable leaves have been 

 referred to this species since it was described by Heer in 1869 

 as the type of the genus Myrtophylluin and based upon material 

 from the Cenomanian of Moravia. In 1882 the same author 

 definitely referred this form to the genus Eucalyptus. 



These diverse appearing leaves are, as a rule, of the same gen- 

 eral type, and differ merely in size or in the closeness or remote- 

 ness of their secondaries, and it seems doubtful if the species as 

 at present understood is composite, as has been claimed by some 

 authors. 



In general these leaves are lanceolate in outline (ovate-lan- 

 ceolate in some Bohemian specimens), broadest near the middle 

 and almost equally tapering in both directions to the acute apex 

 and base. The petioles are very stout, as is the prominently raised 

 midrib. Secondaries numerous, thin, branching from the midrib 

 at acute angles, about 45°, and running with but slight curvature 

 to the marginal hem, which is either almost stiaight where the 

 secondaries are close-set or more or less bowed where the sec- 



