83 



veins, though disjointed and distant as they are at the base, two primary 

 nerves forcing the distribution of the limb in two broad, round lobes, appar- 

 ently folded upon another along the upper part of the middle nerve. The. 

 secondary nervation is comparable to that of Sassafras (Psculapi, Heer, (Flor. 

 Tert, ii, p. 82, PI. xc, Fig. 13.) The lateral nerves are irregularly branching 

 outside, and their divisions, in the direction of the borders, are effaced in the 

 reticulation before r-eaching them; the reticulation is composed of very small, 

 nearly round or polygonal meshes like those of a Benzoin. This leaf, there- 

 fore, though positively referable to some Laurinece, is doubtfully so to Sassa- 

 fras. The distance between the base of the primary nerves, which, normally 

 placed, should be opposite, is observable not only in species of Sassafras, as 

 in our Fig. 2 of PI. xxvii, but in Cinnamomum, &c. Unger, in his Fossil Flora 

 of Sotzka, (PI. xvi, Figs. 5, 7,) has two leaves of C. lanceolatum with the same 

 disjunction. 



Habitat. — Fort Harker, specimen No. 6434, in the cabinet of the Smith- 

 sonian Institution. 



Cinnamomum scheuciizeri, Heer, PI. xxx, Figs. 2-3. 



Leaves thick, coriaceous, polished on the upper surface, elliptical or oblong-lanceolate, pointed, nar- 

 rowed by a curve to the short petiole, entire and slightly undulate, triple-nerved ; medial nerve thick ; 

 lateral veins opposite, a little above the base, ascending along the borders as high up as the lower sec- 

 ondary veins, which they join by ramifications. 



Cinnamomum scheuchzeri, Heer, Flor. Tert. Helv., II, p. 85, PI. xci, Figs. 

 4-22; Pis. xcii-xciii, Figs. 1, 5. 



The species is represented by two specimens, one (Fig. 2) representing 

 a leaf narrowly elliptical, acuminate or lanceolate pointed, narrowed by a 

 curve to the base, (petiole broken,) 5 centimeters long, 17 millimeters broad, 

 with a thick medial nerve, and the lateral veins branching and forming along 

 the borders a series of festoons, as in Heer, (loc. cit , PI. xci, Figs. 12, 18.) This 

 leaf shows its upper surface and its distinct areolation in small, round areola?, 

 as exemplified in this last, (Fig. 1 8.) The second leaf (Fig. 3) is broken from 

 above the middle, but represents the same characters as the former. It is 

 merely broader, with the lateral veins descending lower and nearer to the 

 base ; comparable for its form to Heer, (Joe. cit., PI. xcii, Fig. 5a.) I am 

 unable to find any character by which these two leaves could be separated 

 from the Miocene species, and consider them as identical. 



Habitat. — Western Kansas, found in concretions, Mudae. 



