PART ITI. 
CENSUS OF THE NATURALIZED ALIENS AND 
INTRODUCED EXOTICS OF VICTORIA. 
Since the issue of Baron von Mueller’s Key to the System of Victorian 
Plants (1887-8), which included a list of the plants naturalized in Victoria 
up to that date (pp. 531-536), very many additional plants have become 
naturalized, and have been recorded by Reader, Walter, and others in the 
Journal of Pharmacy (1887), and in the Victorian Naturalist at various 
dates. Since 1906 the records all originate from the National Herbarium, 
and are published in the Victorian Naturalist and in the Journal of the 
Royal Soczety of Victoria. It has already been pointed out that, owing 
to the absence of a full list, the same record has in some cases been 
repeated more than once as a new one, and that the naming has not in all 
cases been correct. In addition, a number of well-known fodder plants 
have long been established on a permanent basis, without being definitely 
recorded. A full and complete list is obviously useful, and in order to 
avoid repeating the confusion of the past every naturalization record to be 
found in the literature on Victorian plants has been indexed, and an alpha- 
betical list formed, giving the date and place of the first published record 
of naturalization (fourth column of list). Considerable difficulty has been 
experienced in many cases in determining which was the first record of 
naturalization, since many plants have been recorded as naturalized on their 
first appearance, or when merely garden escapes, and some of these have 
succeeded subsequently in establishing themselves, but others have not. The 
decision has been made with the aid of the materials at the National 
Herbarium, and no effort has been spared to make it as accurate and as 
just as possible. The addition of the later records and unrecorded plants, 
as well as the local distribution and original home of each plant, will en- 
able us to take a general view of the source and spread of our alien 
flora, while the last column of the list shows the character of the plants 
in question. The rapid spread and increase in numbers of our naturalized 
aliens is remarkable. Thus in Bentham’s Flora Australiensis a total of 99 
are recorded (1863-1878). In Mueller’s Key to the System of Victorian 
Plants (1887-8), 51 additional names are recorded, and an additional fifty 
records are due to Reader in the Journal of Pharmacy about the same 
time. So that the list was more than doubled in a little more than ten 
vears. Many of these would, however, be records of plants omitted by 
Bentham in the absence of material evidence of their establishment in 
Victoria. 
The total number on the present list is 364, so that the increase during 
the past thirty years is nearly at the rate of one plant naturalized every 
