522 PROCEEDINGS OF SECTION D. 
In its young form it resembles Lucalyptus pulverulenta, but both 
the young and old trees have constant and definite characters, 
which in my opinion must separate it from Lucalyptus Stuartiana. 
The discussion of this question and of the proper position of 
“ But But” must remain to a future occasion. All that I desire 
now to point out is that by its floral characters and by its young 
form it is one of the group which gathers round about Hucalyptus 
pulverulenta. 
The opposition of the leaves of aged trees, which is one of the 
distinguishing characters of this group, is well marked in one of 
the forms of Fucalyptus viminalis, which occurs from Cape 
Schanck to Whittlesea, beyond Melbourne, and it may have a 
wider range. 
Not only are its lanceolar or faleate leaves habitually opposed, 
but locally, as at Glen Tris, I have observed the foliage as a whole 
to have a well-marked dull ashy tint. 
T am led, therefore, to the conclusion that the term HLwealyptus 
pulverulenta in its wide sense includes several eucalypts which as 
varieties are near to or depart from the original type, which may 
be now perhaps best seen in the young state of Eucalyptus pul- 
verulenta of New South Wales. : 
If this conclusion can be maintained, then the transition which 
Baron v. Mueller postulates as that of Bue alyptus pulverulenta to 
Eucalyptus Stwartiana might rather be considered as of all the 
existing members of this group from some Eucalyptus represented 
by the young form of each, but of which the older type is now 
extinct. 
REFERENCES TO THE PLATES. 
Illustrations of Hucalyptus pulverulenta, variety lanceolata. 
Prate XXVI.—Part of spray of sapling from Buchan. 
Pirate XXVIL-—1. Seedling from Moe. 
2. Leaf of sapling, low down, from Buchan. 
| wi from Moe. 
\ Fruit from Monkey Creek. 
i Fruit from Woolgulmerang,. 
SOWA orp yo 
' 1! \ Fruit from Buchan. 
PLaTe XXVIII.—1. Sucker from stump, Darlimurla. 
2. Leaf of aged tree, Darlimurla. 
PLATE XXIX.—Spray of leaves of aged tree from Buchan, 
