L. Lesquereux—Lagnitic formations of the Rocky Mountains. 547 
sented by leaves, for the good reason that this flora of Sheppey 
or of the London clays has furnished to the researches and to 
the examination of Bowerbank a large number of fruits—nuts 
and seeds, of various and uncertain affinity—and nothing more. 
They are literally heaped in the clay, without any trace of 
leaves or of other vegetable organs. Fruits of this kind have 
not been found elsewhere in the Tertiary strata of Europe, ex- 
cept a few mentioned, and not yet described, from Mt. Bolea, 
by Massalongo, and two Nipadiies (the genus which more than 
any other represents an Indo-Australian type), in the Miocene 
of the Bouches du Rhone, France. These Sheppey fruits, as 
Heer remarks, are not characteristic of the formation, and do 
Daphnogene, Ficus, 
leaves 0 loca so a Kuropean Eocene genus. And as 
very closely ‘lie tn if not identical with Alum Bay and Mt. 
Bolca species,* we have a Daphnogene from Golden, and a 
* Neither the species of Alumbay nor those of Mt. Bolea have been described ; 
& close comparison is therefore not possible. 
