PALMS IN TERTIARY FORMATIONS. 513 
noticed; and the more frequent occurrence of 
similar remains of this interesting family, in the 
Tertiary formations of France, Switzerland, and 
species, related to Acer negundo, Mr. Braun gives the name of 
Acer trifoliatum. A fossil species of Liquidambar (L. europeum, 
Braun.) differs from the living Liquidambar styracifluum of Ame- 
rica, in having the narrower lobes of its leaf terminated by longer 
points, and was the former representative of this genus in Eu- 
rope. The fruit of this Liquidambar is preserved, and also that 
of two species of Acer and one Salix. 
The fossil Linden Tree of QEningen resembled our modern large 
leaved Linden tree (Tilia grandiflora.) 
The fossil Elm resembled a small leaved form of Ulmus cam- 
pestris. 
Of two species of Juglans, one (J. falcifolia) may be compared 
Avith the American J. nigra; the other, with J. Alba, and, like 
it, probably belonged to the division of nuts with bursting ex- 
ternal shells, (Carya Nuttal.) 
Among the scarcer plants at CEningen, is a species of Dios- 
pyros (D. brachysepala.) A remarkable calyx of this plant is 
preserved, and shews in its centre the place where the fruit se- 
parated itself: it is distinguished from the living Diospyros lotus 
of the South of Europe by blunter and shorter sections. 
Among the fossil shrubs are two species of Rhamnus ; one of 
these (R. multinervis, Braun) resembles the R. alpinus, in the 
costation of its leaf. The second and most frequent species, (R. 
terminalis, Braun) may with regard to the position and costation 
of its leaves, be compared in some degree with R. cathartlcus, 
but differed from all living species in having its flowers placed 
at the tips of the plant. 
Among the fossil Leguminous plants is a leaf more like that of 
a fruticose Cytisus than of any herbaceous Trefoil. 
Of a Gleditschia, (G. podocarpa, Braun) there are fossil pin- 
nated leaves and many pods ; the latter seem, like the G. monas- 
perma of North America, to have been single seeded, and are 
small and short, with a long stalk contracting the base of the pod. 
With these numerous species of foliaceous woods, are found also 
GEOL. L L 
