Bd. III; 14) 
THE MESOZOIC FLORA. 
13 
doubt whether it is the more practical course to include all the forms referred to 
under the name of C. dcnticiilata in one species. Some fronds of a similar habit 
from the Jurassic of Australia, described under the name of Pecopteris australis 
Morris (1845, p. 248; pi. 7, figs, i, 2), are mentioned by Seward (1904«, p. 171) 
as a variety of C. denticulata. With the exception of these fronds, the attribution 
of which to C. detiticulaia is, in my opinion, very questionable, the latter species 
has not been recorded with certainty from the Southern Hemisphere. Bodenbender 
(1902, p. 40) mentions it from the Argentine, but no description or illustrations are 
given. 
Of the fragmentary pinnae shown in pi. 2 , fig. 6, the one to the right and the 
upper of the two left-hand ones appear to belong to a new species. 
Frond bipinnate(?), pinnae long and linear; pinnules attached at a wide or even 
a right angle, oblong, almost straight, with an obtuse apex. Venation of the Clado- 
pJdebisdy'pQ. Midrib strong, reaching to the apex; secondary veins at a wide but 
not a right angle, dividing once, only in single cases twice, with the branches pa- 
rallel to each other. 
The pinnae resemble those of Cladophlebis haiburnensis (LiNDl.. & Hutt.) in 
having spreading oblong pinnules with somewhat parallel edges and obtuse apex. 
The main difference lies in the venation, which is characterized by the parallel se- 
condary veins, bifurcating, with very few exceptions, only once (text- fig. 4). In this 
character there is a distinct resemblance to C. denticulata (Brgn.) and C. australis 
(Morris), which, however, have a different shape of the pinnules. There is a still 
greater resemblance to C. Bartoncci Raciborski (1894; pi. 22, figs, ii — 12); but 
the latter species also has the pinnules more falcate and pointed. The pinnules give 
the impression of having been rather thick: this together with the close and parallel 
secondary veins mark the present specimens off at once from all others in the Hope 
Bay flora. The lower one of the two pinnæ to the left in fig. 6, pi. 2, probably 
does not belong to this species. It may be Toditcs Williainsoni ; but the preserva- 
tion does not allow of any definite determination. 
Cladophlebis oblonga n. sp. 
PI. 2, fig. 6; lext-fig. 4. 
Fig. 4. Cladophlebis oblonga n. sp. — Portions of two pinnæ, Vi. 
