SALICALES. 115 



Unfortunately, the name given this species was used for an- 

 other by Forbes in 1829, sO' that it becomes necessary tO' rename 

 it, and no name can be more appropriate than that of its distin- 

 guished describer, Leo Lesquereux, for whom it is here named. 



This is an exceedingly variable species, as might be expected 

 in a Salix, and Lesquereux established several varieties, o^f which 

 at least one, i. e. linearifolia, is referable to Salix fle-xuosa 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 oif his Cretaceous and Tertiary Flora. They 

 are, however, larger and somewhat more robust, O'f a thicker 

 texture and broadest near the base, from which they taper up- 

 ward 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 Argen- 

 tina, by Kurtz (loc. cit.). It is abundant in the Raritan forma- 

 tion, both in the lower and upper beds. 



Occurrence. — Sayreville, Woodbridge, South Amboy. 



Collcction\s. — U. S. National Museum, N. Y. Botanical Garden. 



Saux flexuosa Newb. 



Salix Uexuosa Newb., Later Ext. Floras, 21, 1868; 111. Cret & 

 Tert. Plants, pi. i, f. 4, 1878; U. S. Geol. Sun^ Mon. 

 35 : 56, pi 2, f. 4; pi. 13, f. 3, 4; pi. 14, f. I, 1898. 

 Berry, Ann. Rept. State Geol. (N. J.) for 1905: 145, 1906; 

 Bull. Torrey Club, vol. 33: 171, 1906. 

 Salix protecefolia linearifolia Lesq., Fl. Dakota Group, 49, pi. 64, 

 f. 1-3, 1892. 

 ? Hollick, U. S. Geol. Surv. Mon. 50: 52, pi. 8, f. 12, 1907. 

 Salix proteccfolis Uexuosa (Newb.) Lesq. loc. cit., 50, pi. 64, f. 4, 

 5, 1892. 

 Hollick, Bull. Torrey Club, vol. 21 : 50, pi. 1^4, f. 5, 1894; 

 Ann. N. Y. Acad. Sci., vol. 11 : 59, pi. 4, f. ^ja, 1898; 

 U. S. Geol. Surv. Mon. 50: 51, /^Z. 8, f. 5, 6a; pi. 37, f. 

 8b, 1907. 



