ii6 THE RARITAN FLORA. 



Berry, Bull. N. Y. Bot. Garden, vol. 3 : 67, pi. 48, f. 12; pi 

 52, f. 2, 1903. 



Description. — Leaves narrow, linear-lanceolate in outline, 

 equally pointed at the apex and base, short petioled, ranging from 

 5 cm. to 10 cm. in length and from 8 mm. to 13 mm. in width. 

 Margins entire. Midrib stout below, tapering above, usually 

 somewhat flexuous. Secondaries more or less remote, about 10 

 alternate pairs, branching fromi the midrib at angles varying from 

 35° to 45°, camptodrome, of fine calibre and often obsolete. 



This species was described by Newberry in 1868 from the 

 Dakota Group. Lesquereux in his Flora of the Dakota Group 

 makes it one of the varieties of his Sali.x protecefolia, but it is 

 obviously entitled to independent specific rank. It has not hereto- 

 fore been known from' the Raritan formation, but is found to be 

 sparingly represented in the Upper beds at South Amboy. It is 

 pre-eminently a species which characterizes the Magothy and 

 allied formations from Marthas Vineyard to Alabama, being 

 especially abundant in New Jersey and Maryland. 



Occurrence. — South Amboy. 



Collections. — U. S. National Museum. 



Saux raritanensis Berry. 



Salix membranacea'Newh. (non Thuill, 1799) Later Ext. Floras, 

 19, 1868; Fl. Amboy Clays, ,66, pi. 2p, f. 12, 1896; U. 

 S. Geol. Surv., Mon. 35 : 59, pi. 2, f. 5-80, 1898. 

 Hollick, Mon. U. S. Geol. Surv., vol. 50: 50, pi. 8, f. 10, 



1907 (f. 27, ?). 



Salix raritanensis Berry, Bull. Torrey Club, vol. 36: 250, 1909. 



Description. — ^Leaves broadly lanceolate in outline, often un- 

 symmetrical, large, petiolate. Length about 13 cm. and breadth 

 at the widest part, which is toward the base, about 3 cm. Base 

 rounded and obtuse. Apex narrowed and acute. Texture 

 smooth and thin. Midrib slender, somewhat curved. Second- 

 aries remote, branching from the midrib at an angle of 45° and 

 curving upward in parallel courses, camptodrome. 



