13 
to the tip; in some cases there is a very slight tendency to convergence, 
amounting merely to a bending inwards of one vein on either side of the central 
one. As shown on Plate VI, fig. 1, the leaves at the lower end are shorter and 
somewhat rounded. 
\ 
The specimens are indistinguishable from figures of the typical P. 
lanceolatus, occurring in Jurassic rocks in other parts of the World. 
Although the species is so abundant among the material from Talbragar, 
none of the specimens gives any indication of the true systematic position of 
Podozamites. 
CONIFER ALES. 
, Araucarites grandis, n.sp. 
(Plate III, fig. 6.) 
Large cone scales, broadly wedge shaped, with very short apical spine. 
Seed single, elongate. 
The scale has a length of about 4-2 cm., and a width of 2-2 cm. at the 
widest part, narrowing to *6 cm. at the base. The seed depression is about 
2*5 cm. long by -6 cm. wide. 
One other specimen of an Araucarian seed-bearing scale has been des- 
cribed from Jurassic rocks in New South Wales, viz., that from Bexhill, near 
Lismore, determined as A. cutchensis, Feistmantel. 1 The Talbragar specimen 
is very much larger than that from Bexhill, and it is perhaps advisable to give 
it a distinct specific name. Araucarian cone scales are now known widely 
from Jurassic rocks, and in describing them the practice has been generally 
followed of giving distinct specific names to specimens from rocks of approxi- 
mately the same age in different areas. This fact should be borne in mind 
in the comparison of Jurassic floras from different localities. The actual 
number of names is probably considerably in excess of the number of actual 
species. 
Araucarian scales not differing very greatly from those under discussion 
have been described from Jurassic strata in England, Germany, India, and 
Victoria. 
Seward 2 describes two scales from Victorian Jurassic rocks as Arauc- 
arites sp. A., and Araucarites sp. B., both differing widely in form from the 
present example. 
1 Proc Linn Soc. N.S.W r ., xliv, 1919, p. 188. 
2 Rec. Geol. Surv. Y r ict., 1, pt. 3, p. 181, t. xix, figs. 42, 43. 
