FOSSIL PLANTS 
161 
magnificent form, with leaflets from 8 to 23 cm. in length. 
It finds its greatest affinity with H. antiquora of the 
lower Tertiary of the United States. 
The Ulmaceae are represented by several leaves that 
are referred to Ulmus braunii of Heer, though not with¬ 
out some hesitation. 
That the family Aceracese was present is shown by a 
number of more or less broken leaves that have been re¬ 
ferred to Acer trilobatum var. They are too fragmentary 
to venture a positive identification. 
GEOLOGICAL ASPECT 
Of the twenty-six forms represented in the collection 
nine are described as new to science, seven are not named 
specifically, being branchlets, seeds, scales, broken cones, 
etc., thus leaving ten species previously known. These 
are as follows: 
Equisetum globulosum Lesq. 
Sequoia heerii Lesq. 
Taxodium distichum miocenum Heer. 
Taxodium tinajorum Heer. 
Jugians acuminata Al. Br. 
Corylus 7 nacquarrii (Forbes) Heer. 
Alnus corylifolia Lesq. 
Ulmus braunii Heer. 
Acer trilobatum var. 
Andromeda grayana Heer. 
Equisetum globulosum was described originally from 
Cook Inlet, Alaska, and was also detected by Lesquereux 
in Fort Union beds near the mouth of the Yellowstone 
River. Sequoia heerii was first found at Sage Creek (?), 
Montana, in beds of doubtful Green River age. It has 
since been found in the Upper Clarno formation (Upper 
Eocene) at Bridge Creek, Oregon, and is now for the first 
time reported from Alaska. Taxodium distichum mioce¬ 
num enjoys a very wide distribution, but is especially 
