212 
FURTHER NOTES ON THE CAINOZOIC FLORA OF SENTINEL 
ROCK, OTWAY COAST.* 
(By Henry Deane, M.A., F.L.S.) 
(Specimens 34 to 76, and 162 to 182 inclusive.) 
The leaf remains are very largely of a type related to Coprosma. A few 
others are found, but the one mentioned is the prevailing one, and gives a 
character to the vegetation which has been preserved in these beds. There is 
a singular absence of the various types prevalent in the other deposits already 
dealt with, namely, Pitfield, Mornington, and Berwick. 
CoPROSMiEPHYLLUM, GEN. NOV. 
The characters of the genus are those of the larger leaved Coprosmae. The 
midrib is well developed arid rather broad, often wavy in outline, the lateral 
or secondary veins are alternate, and before reaching the margin, curve round 
and join the next above. There is a well marked series of tertiary veins, 
forming a coarse network between the secondary veins, and finally a finer 
network forming the skeleton of the whole lamina of leaf. The width of the 
midrib and secondary veins, especially near their base, seem to show that the 
living leaves were more or less fleshy or succulent, like those of the existing 
genus Coprosma. 
The genus Coprosma flourishes at the present time in New Zealand and the 
Pacific Islands, and it possesses several representatives in Eastern Australia. 
The late Baron von Mueller united under this name the allied genus Nertera, 
which extends not only to New Zealand, but also to Antarctic and Andine 
America. The genus thus enlarged contains, according to the Baron’s last 
census, ten species indigenous to South-eastern Australia ; six of these are 
found in Victoria and five of the latter are common to Tasmania. It is not 
at all unlikely, therefore, that the genus Coprosma itself flourished in early 
cainozoic times in Victoria. I have, however, decided to place the fossil 
leaves under a new genus, Coprosmcephyllum, the name of which indicates the 
resemblance to which I have called attention. 
Coprosmsephyllum ova turn, sp. nov. 
Plate XX., Figs. 1, 2, and 3. 
Leaf ovate, sometimes as much as 3 inches in length and 1J inches in 
breadth, tip more or less expanded, but sometimes almost pointed ; base 
from almost cordate to somewhat attenuate. Venation generally very 
distinct; midrib straight or slightly wavy ; lower lateral veins long, making 
an angle of from 30° to 35° with the midrib, curved, and running nearly parallel 
to the margin ; the others more divergent, starting at an angle of about 45°, 
but also curved and bending round to meet the next above. Tertiary veins 
and finer network as described for the genus. 
The leaves partake of the character of the three New Zealand species, 
Coprosma robusta, Raoul, C. grandiflora, Hooker, and C. lucida, Forst. 
The leaves figured are those contained in Specimens 35, 57, and 168, but 
the same species is preserved in a large number of other specimens. 
* See Preliminary Report, Geol. Surv. Viet., Records, Vol. I., Pt. 1, p. 13. 
