[PENHALLOW]| A REPORT ON FOSSIL PLANTS 309 
1428 
6 GLYPTOSTROBUS EUROPÆUS ? (Brongn.), Heer. 

One specimen only, showing a small fragment of a leafy branch. 
1428 SALIX PERPLEXA, Knowl. (?). 
4 
A single specimen representing the lower three-fourths of a leaf, 
appears to be identical with Knowlton’s Salix Perplexa (34). The 
chief difficulty in this comparison is to be found in the fact that this 
species was derived from the Mascall Beds of the John Day Basin at 
Van Horne’s Ranch, and it is therefore of Miocene age, being known 
in no other horizon. This reference must therefore be taken with 
reservation. 
= POPULUS CYCLOPHYLLA, Heer. 
One leaf only, represented by a very imperféct and badly crumpled 
fragment, which makes definite identification very difficult. If cor- 
rectly determined, the present specimen finds its representative in the 
Dakota Group of Nebraska, etc., (46). 
1430 i 
RCE YRICA SERRATA, n. Sp. 
This genus is represented by two fragments of leaves of 
the generalized type presented by M. torreyi, Lesq. (56: pl. xl, 
f. 4), but much smaller, more sharply and regularly dentate, 
and thus more nearly approaching M. scottii of Lesquereux, 
as figured by Knowlton, from the Laramie of the Yellowstone 
National Park (34: pl. Ixxxiv, f. 6), *hough it can hardly 
be said to conform as well to Lesquereux’ original description 
and figure based upon specimens from the Green River Group 
Bee at Florissant, Colorado (12: p. 147, pl. xxxii, f. s. 17-18). 
yrica 
serrata, It has thus been considered desirable to designate it by a 
n.sp.X1/1 distinctive name. 
= Quercus FLEXUOSA, Newb. (?). 

Several poorly preserved fragments of leaves, appear to be identical 
with Newberry’s Quercus flexuosa (46: p. 74, pl. xix, f. 4-6), from the 
Cretaceous of the Puget Sound Group at Chuckanutz, Washington. 
1430 
ar QUERCUS CORIACEA, Newb. 
This number embraces several small leaves nearly entire; frag- 
ments showing the entire margin, form and characteristic venation of 
‘Quercus coriacea; also one specimen with three nearly complete leaves 
