252 Berry: Mesozoic flora of the coastal plain 



Occurrence: Milltown. 



Collections: U. S. National Museum; N. Y. Botanical 



Garden. 



Salix Lesquereuxii nom, no v. 



Salix proteaefolia Lesq, Amer. Jour. Sci. 46: 94. 1868. 



Newb. Fl. Amboy Clays 66. pL 18. f. j, 4. 1896. Not Saiix 



proteaefolia Forbes, 1 829. 

 Salix proteaefolia longifolia Lesq. Fl. Dakota Group 50. pL 64, 



f. p. 1892. 



Proteoides daphnogenoides Newb. p. /., FL Amboy Clays 72. pL 



32. f II (not/. /J, 14). 1896. 

 Dewalquea gronlandica Newb. p, /., op. cit. 129. //. 41, f. 12 (not 



Leaves ovate-lanceolate, somewhat more acuminate above 

 than below, variable in size, ranging from 6 to 12 cm. in length 

 and from 1. 1 to 2,2 cm. in greatest width, which is usually slightly 

 below the middle* Petiole stout, much longer than in Salix 

 flexHosa^rdiX\g\ng up to 1.2 cm. in length. Midrib stout below, 

 tapering above. Secondaries numerous, sometimes as many as 

 twenty pairs ; they branch from the midrib at angles of about 45^ 

 and are parallel and camptodrome. 



Unfortunately, the name given this species was used for another 

 by Forbes in 1829 so that it becomes necessary to rename it, and 

 no name can be more appropriate than that of its distinguished 

 describer, Leo Lesquereux, to whom it is here dedicated. 



This is an exceedingly variable species, as might be expected 

 in a Salix^ and Lesquereux established several varieties, of which 

 at least one, /, e., linearifolia^ is referable to Salix flexiiosa Newb. 

 Some of Lesquereux's forms are distinguishable with difficulty 

 from the latter and this is especially shown in the leaves which he 

 figures on plate i of his Cretaceous and Tertiary Flora. They 

 are, however, larger and somewhat more robust, of a thicker tex- 

 ture and broadest near the base, from which they taper upward to 

 an exceedingly acuminate tip. In general, Salix Lesquereuxii is a 

 relatively much broader, more ovate form with more numerous and 

 better seen secondaries and a longer petiole. It is a characteristic 

 Cenomanian species in both the east and the west and has even 

 been reported from the Cretaceous of Argentina by Kurtz. It is 



