DE. HEEE ON THE FOSSIL FLOEA OF BOVET TEACEY. 
1041 
A glance at this Table will at once satisfy us that the lignites of Bovey must be 
referred to the Lower Miocene division, and to the Aquitanian stage of it. It is true 
that nine of the species are found also in the Upper Miocene of other places, but these 
are all species which occur also in the lower stages, and which had a very extensive 
distribution both in time and space. Twelve species have been observed in the Mayencian 
and sixteen in the Tongrian stage ; but nineteen have been identified in the Aquitanian 
stage in various localities. Certain species {Palmacites Bcemonorojps, Qiiercus Lyelli, and 
Nyssa europcea) are not yet known in other districts as belonging to any but the Aqui- 
tanian stage ; two [Andromeda reticulata and Nymphcea Boris) are known only in the 
Tongrian ; others [Pecojyteris Uynitum, Sequoia Couttsice, Bryandroides liakecefolia, and 
B. laevigata) only in the Tongrian and Aquitanian. 
In this conspectus we have omitted the doubtful species [Phragmites (Eningensis^ 
Bryandroides BanJcsicefolia, Eucalyptus oceanica, and Pterocarya denticulata). Should 
these be estabhshed by specimens in a better state of preservation, no disturbance would 
ensue to the above result, inasmuch as the Phragmites reaches back to the Lower Mio- 
cene, the Eucalyptus and Bryandroides belong to the Tongrian and the Aquitanian, the 
Pterocarya to the Aquitanian. 
If we compare the Bovey flora with the several Continental floras, we shall find a 
great coincidence between it and that of Salzhausen in the Wetterau. A couple of 
species, 'viz. Palmacites Baemonorops and Nyssa europoea, were previously known only 
from that district, while others, as Pecopteris lignitum, have been rarely found in other 
localities. With the Aquitanian stage of the Swiss Molasse (Hohe Bhonen, Ralligen, 
Monod and Bochette) Bovey has eleven species in common, — all species which occur in 
other parts, but two of them [Bryandroides haTcecefolia and B. laevigata) are especially 
frequent in Switzerland. 
Of the French tertiary floras, it approximates most to that of Manosque in Provence. 
Here, as at Bovey, the most frequent fern is Pecopteris lignitum; and here also are found 
Cinnamomum lanceolatum^ Baphnogene TIngeri, Echitonimn cuspidatum, and Bryan- 
droides laevigata. The water-lily of Bovey is probably one with the Nymphcea calo- 
phylla. Sap., of Manosque ; but this cannot be determined, as we have only the leaves in 
the latter case, and the seeds in the former. 
In the composition of the soft clay that contains the plants in the 26th bed at Bovey, 
and in the mode of their deposition in the same, there is great resemblance to the clays 
of Samland near Konigsberg. A further connexion may also be traced through Gar- 
denia Wetzlcri. 
It is remarkable that Bovey has no species in common with Iceland, although the 
tertiary flora of Iceland belongs to the same period, and two of its species [Corylus 
MacQuarrii., Forbes, and Platanus aceroides, Gp.) extend into Great Britain, having 
been found in Mull, in the Miocene of Ardtun Head. Even the genera are distinct, 
with the exception of two. Sequoia^ and Quercus, which genera have each a single but 
distinct species in Iceland and in Bovey. The Bovey flora has a much more southern 
7 c 2 
