192].] The Eighth Indian Science Congress. elxxv 
Wadia, D. N. (1919). Geology of India. London. 
Zeiller, R. (1902). Observations sur quelques vers ee 
on: Lower Gondwanas. Mem. G.S.J. Palae 
Ind. New Ser. Vol. 2, Mem. | 
Hxplanation of Table I (Indian Fossil Floras). 
While the attempt has been to make this list a ae com- 
plete one, a number of specific names which appeared to have 
been base upon insufficient or otherwise unsatisfactory data 
have been omitted. 
ne species marked thus * are those which, as far as | 
which they are shown. They may thus be of some loca 
importance in fixing the horizons. On the other hand, there 
are a number of species, each of which occurs in several succes- 
sive horizons, and these may help in defining the broader sub- 
io 
The two thick vertical lines mark the Gondwana system. 
The subdivisions of the Godwana System are the same as those 
gion by the Geological Survey of India. In the column 
n the extreme left is given the homotaxis of the Indian strata 
in terms of the European stratigraphical scale. 
Explanation oj Table ae { Vertical Range of Genera of Indian 
wana Plants). 
In examining this table it is to be borne in mind that 
nearly all the genera are “ form-genera, ”’ and that their group- 
ing, as here given, is liable to revision on the discovery of 
fructifications. 
roken lines represent gaps in the known vertical 
distribution of the genera: ‘These gaps may indicate either:— 
(1) a local extinction or migration of the genus owing to 
praeline he conditions of life 
(2 t the conditions bhi unfavourable for the preser- 
vation of an ant-remains. This is well illustrated by the Iron- 
stone Shales, of which the flora is ke such a poorone, but from 
which very few recognizable plants ar e known 
or, (3) that a further search will probably fill up the gaps 
(e.g., Willjamsonia in the Kota Be ds ; Taeniopieris, at least in 
the Jabalpur Beds; and Gleichenttes in the Kota B 
An ecological study of Deccan grassland.— By W. Burns 
and G. M. CHAKRADEY. 
An area of seven acres of the worst Deccan os has been 
leased Kalas vill near Poona, in order to make an in 
arted, and individual 
plants and societies observed. The rriters eat cad with the various quadrats, 
