FLORA OF THE SECONDARY SERIES. 
4yo 
SECTION III. 
VEGETABLES IN STRATA OF THE SECONDARY 
SERIES.* * * § 
Fossil Cycadeie. 
The Flora of the Secondary Series f presents 
characters of an intermediate kind between the 
Insular vegetation of the Transition series, and 
the Continental Flora of the Tertiary formations- 
Its predominating feature consists in the abun- 
dant presence of Cycadem, (see PI. 1 , Figs. 33 , 
34, 35,) together with Coniferse,! and Ferns. § 
(See PI. 1, Figs. 37, 38, .39.) 
* See PI. I, Figs. 31 to 39. 
t M. Ad. Brongniart, in his arrangement of fossil plants, h®* 
formed a distinct group out of the few species which have been 
found in the Red-saiidstone formation (Gres bigarre) immediately 
above the Coal. In our division of the strata, this Red-sandstone 
is included, as an inferior member, in the Secondary series. F*''® 
Algae, three Catamites, five Ferns, and five Coniferae, two Liliace®i 
and three uncertain Monocotyledonous plants form the entn'e 
amount of species which he enumerates in this small Flora. 
See also Jaeger uber die Pflanzenversteinerungen in dem BaU' 
sandstein von Stuttgart, 1827. 
J We again refer to Witham’s Account of Coniferae from th® 
Lias, in his observations on Fossil Vegetables, 1833. 
§ A very interesting account, accompanied by figures, shewing 
the internal structure of the stems of fossil arborescent Ferns o 
the Secondary period, is given in Cotta’s Dendrolithen, Dresden; 
1832; these appear to be chiefly from the New red sandston® 
of Chemnitz near Dresden. 
