FLOEA OF THE GREEN RIVER GROUP. 147 



fragment which I considered as a compound leaf is a small branch with 

 alternate leaves. The reference to Callicoma is not possible, as in this 

 genus the divisions are opposite. Except from what is seen in the branch, 

 fig. 5, whose divisions are alternate, distant, parallel, as well as the leaves, 

 there is nothing to modify in the description of this species in vol. vii, 

 loc. cit. The teeth are not always sharply acute, but more or less so, 

 always inclined upward. 



The species is closely related in the nervation to M. Zachariensis, 

 var. minuta, Sap., loc. cit., but differs evidently in the more rounded and 

 unequilateral base of the leaves. 



Hah. — Most abundant at Florissant, also at Elko Station, Utah. 



M y r i c a fa 1 1 a x , sp. nov. 

 Plate XXXII, Figs. 11-16. 



Very similar in its characters to the preceding species and perhaps a 

 variety of it. It merely differs in the teeth being sharply acuminate or 

 subspiniform, the lateral nerves less curved in passing toward the borders, 

 the base of the leaves not as distinctly unequilateral. It is distantly related 

 to M. acuminata, Ung. 



Hah — Florissant. Not rare. 



Myrica Scottii, sp. nov. 

 Plate XXXII, Figs. 17, 18. 



Leaves coriaceous, long and uairow, linear-acuminate, narrowly cuneate to the 

 petiole, sharply dentate; lateral veins more or less oblique and curved. 



By the leaves, 6 to 9 centimeters long, 6 to 10 millimeters broad, with 

 sharply spinescent teeth turned upward, the species is related to M. 

 Banksicefolia, Ung., and M. ohscura, described above. It differs from both 

 in the sharply dentate borders of the leaves, the lateral nerves being 

 distinct and more acutely diverging. 



Hah. — Florissant. Princeton Museum. 



Myrica amygdaliua. Sap. 



Plate XXVI, fig8. 1-4. 

 Sap., "fit.," iii,ii,p.21,pl. I,fig9.8-10. 



Leaves submembranaceous, oblong-lanceolate, obtuse or apiculate, narrowed to 

 a short petiole, denticulate or subentire; secondary nerves numerous, at an acute angle 

 of divergence, obliquely branching and reticulate. 



