FLOEA OF THE DAKOTA GROUP. 47 



Ficus? angustata, sp. nov. 



Leaves narrowly lanceolate, comparatively long ; medial nerve thick; secondary 

 veins very close, at an acute angle of divergence, camptodrome. 



The leaves are long, lanceolate, gradually acuminate, and also grad- 

 ually narrowed to the base, 12 centimeters long, 2 centimeters broad. The 

 veins at an angle of divergence of 20° pass upward slightly curved, and 

 abruptly bend close to the borders following them in single bows. They 

 are only 2i millimeters distant. 



This species differs from the preceding by narrower leaves, the more 

 acute angle of divergence of the veins and their relative positions. It 

 might be compared to EMmnus tenax, Lesqx., "U. S. Geol. Rep.," vi, 

 p. 109, pi. xxi, fig. 4; but the leaves, though of the same width, are 

 nearly twice as long, and the angle of divergence of the veins is only half 

 as broad; the medial nerve also is much thicker. 



Hub. — Bluff Creek, Kansas. Chs. Sternberg. 



Ficus magnolia; folia, sp. nov. 



Plate XVII, Figs. 5, 6. 



Leaves very entire, oval or broadly lanceolate, broader below the middle, rounded 

 in narrowing to the short petiole, and declined downward at the slightly declining 

 base; medial nerve of medium size, strict; secondary veins at an acute angle of diver- 

 gence, close, very oblique, nearly straight from the midrib to near the borders, simply 

 camptodrome. 



The leaves, 8 to 10 centimeters long, Si to 5b centimeters broad, with 

 a shoi't not inflated petiole about 1 centimeter long, appear somewhat thick 

 but not coriaceous; they are acute or tapering to a short acumen (all the 

 points are broken). The veins close, 5 to 7 millimeters distant, under an 

 angle of divergence of 40°, are thin, parallel, except the lowest pair which 

 is a little more oblique. The areolation is obsolete; only a few nervilles 

 are seen at the end of the veins, anastomosing in marginal curves along 

 the borders and close to them. 



These leaves have a great likeness to those of Magnolia Capellini, 

 Heer, "Phyll. Crel. du Neb.," p. 21, pi. iii, figs. 5, 6, differing especially by 

 the more acute angle of the more numerous and closer secondary nerves. 

 By this character, and also by the slightly decurring base of the leaves, they 



