elxii Proceedings of the Asiatic Soc. of Bengal. [N.S., XVII, 
appearance in these regions of two new forms, Cladophlebis 
denticulata and Danaeopsis Hughesi. Of these the former is a 
ghes—a large fern-like frond, which by its whole eae 
of the Upper Triassic and Rhaetic periods; it has been recor 
of India is thus full of interest. There is here a mixture of 
the past and the future: the past is represented by the typi- 
cally Palaeozoic forms grime and Vertebraria, Schizoneura, 
Cordaites, Samaropsis and the peculiar Squamae; the future is 
heralded by Cladophlebis denticulata, a pre-eminently Tikes 
species. It is significant that the beds containing this mixed 
flora were included by Feistmantel in a Transitional Series 
(Middle Gondwana) intermediate between the Lower and Upper 
Gondwana. 
Taken as a whole, however,—and this is a fact I wish parti- 
cularly to emphasize—the flora of the Parsora beds of India, 
shows a much greater affinity with the earlier floras than with 
that of the Jurassic perio 
na masterly address dealing with the geographical distri- 
bution of the former vegetations of the world Prof. Sewar 
arrived at some cea ae conclusions, one of which I may 
be allowed to quot 
** Aswe ‘sean feo the Rhaetic] to the Jurassic plant-beds 
“ the change in the vegetation is comparatively slight, and the 
“same persistence of a well-marked type of vegetation extends 
‘* into the Wealden period. It isa remarkable fact that after the 
. “ Palaeozoic floras had been replaced by those of the Mesozoic 
‘era, the vegetation maintained a striking uniformity of charac- 
“ter from the close of the Triassic up to the dawn of the 
* Cretaceous era.”’ (Seward 1903, 
During the seventeen years that have passed since the 
occasion on which these words were spoken, our knowledge of 
the floras of Gondwanaland has considerably increased, and this 
we owe very largely to the work of Professor Seward himself. 
The truth of the statement just quoted as applied in a general 
sense, has been demonstrated in the case of several countries 
whose floras have tise worked out more fully in recent years. 
This general ped ronan between the Rhaetic and Jurassic 
floras is well seen in Queensland. The Ipswich and Walloon 
series of Oaceinkiarid’ have been referred to a Rhaetic and 
Jurassic age respectively (Walkom 1917, p. 28; 1918, p. 81), 
but the general facies of the two floras is not very dissimilar. 
en we come to the ¢ ap peer Indian plant-beds, 
however, the case is entirely different. Of the half-a-dozen 
plants known from the Parsora beds, sahich Mr. Cotter has re- 
