280 Review of Saporta’s Work 
sition of a more equable and more generally humid climate. 
The essential types of vegetation recognized in Europe during 
this period are, for the Conifers, Libocedrus salicornioides ; Oha- 
mecyparis in two species ; some Seguoie, among them S. Tour- 
malu and S. Coutsie; Taxodium distichum miocenicum, and 
Glyptostrobus Europeus. With these Conifers the author men- 
tions and figures species of Comptonia, some of them of typical 
affinity to the North American C. asplenifolia, others to Austro- 
Asiatic forms; oaks with coriaceous lobate leaves, a Palm, 
bal major; Aralia Hercules, species of Myrica, Celastrus, 
Andromeda, Diospyros, Myrtus, Mimosa, and, as related to 
, Acer, 
already mentioned in the examination of the Gypseous forma- 
Gypseous of Gargas in Provence, of Alais, Armissan and 
Speeback ; then Haering in Tyrol, Sotska in Styria, Sagor in 
Carinthia, and Mont Promina in Dalmatia. The floras of some 
of these localities were formerly referred either to the Miocene 
or to the vee Eocene. The Flysch and Nummulite beds are 
Oligocene. From all these deposits eight to nine hundred 
species have been obtained. 
he Miocene period is subdivided into two sections or subpe- 
riods. The lowest, the Aquitanian, begins with the regression 
of the Tongrian Sea, and terminates at the invasion of the 
Molassic, a period which ends with the more recent strata Mio- 
pliocene. 
The Aquitanian has beds of lignite sometimes very thick. 
The more important localities where plants of this formation 
have been discovered are Manosque in Provence; Cadibona, 
Piedmont; Thorens, Savoy; Paudeze and Monod in Switzer- 
land ; Bovey Tracy in England ; Coumi in Eubzea; Rhadoboy in 
Croatia, ete. The flora of both periods of the Miocene is well 
known, and has been so admirably well studied and described, 
especially by Heer, that every phytopaleontologist has become 
acquainted with its essential types. A large number of them 
are figured in Saporta’s book. : 
The Oligocene types of Conifers, as also those of the dicoty- 
ledons, still remaining in the present flora, pass of course 
through the Miocene. But the climate of this period has a far 
less degree of uniformity, or the zones a less degree of expan- 
sion, and therefore the floras become more diversified, accord- 
ing to the latitude of the localities in which they are observed. 
Thus the flora of Coumi is marked by a large profusion of merl- 
pe eae 
—— 
