134 THE RARITAN FLORA. 



forming 4, 5, or 6 sided areoles, quite prominent in some speci- 

 mens. 



This is the largest Magnolia of the Raritan, the leaves of 

 which are said by Prof. Newberry to reach a length of 30 cm. or 

 more. It is frequent at the Woodbridge locality and has also 

 been reported from Staten Island and Marthas Vineyard, from 

 the Tuscaloosa formation in Alabama and from the Bladen for- 

 mation in North Carolina. 



In a general way it resembles an immense leaf of Magnolia 

 woodhridgensis, and it also approaches somewhat Magnolia 

 longipes, but the petiole is only about one-third the length that 

 it is in the latter species. 



Occurrence. — Woodbridge. 



Collections. — N. Y. Botanical Garden. 



Magnolia Lacoeana Lesq. 

 Plate XVI, Fig. 2. 



Magnolia Lacoeana Lesq., Fl. Dakota Group, 201, pi. 60, f. i, 

 1892. 

 Newb., Fl. Amboy Clays, 73, pi. 55, f. i, 2, 1896. 

 Hollick, U. S. Geol. Surv. Mon. 50:65, pi. 17, f. 2, 1907. 



Description. — Leaves broadly oval to almost orbicular in out- 

 line, obtuse or abruptly pointed above and rounded to a some- 

 what cuneate below, 10 cm. to 12 cm. in length, by 8.5 cm. to 

 9.5 cm. in width. Midrib stout, somewhat flexuoiis. Secondaries 

 numerous, camptodrome, mediumly stout, 10 to 12 pairs; they 

 branch from the midrib at an acute angle, immediately curving 

 outward, forming festoons near the margin, which is somewhat 

 undulate in one specimen which Prof. Newberry referred to 

 this species. 



This species differs from its contemporaries, especially in its 

 nearly round outline; Prof. Lesquereux finds a resemblance to 

 Magnolia. Inglefieldi Heer from Greenland, and it also sug- 

 gests some of the Arctic forms which have been referred to 

 Magnolia Capellini Heer, 



