404 
PROCEEDINGS OF SECTION D. 
XI.— NATURALISED PLANTS, AND STRAYS FROM CULTIVATION. 
• .A wou ^ U P far too much space, and be undesirable, to give 
in this paper a full list of the names of the plants which have become 
naturalised or which have strayed from cultivation, and are now found 
growing spontaneously upon the waste lands near settlement. But 
it may be here stated what proportion each quarter of the globe 
has furnished of the 200 or so plants constituting the naturalised 
portion of the Queensland Flora. Some of the plants may almost be 
called cosmopolitan, but the following is a fair statement:— About one- 
third are European, about one-third are from America, about one-fifth 
are Asiatics, but the African species only amount to about one- 
tmrteenth. The plants are contributed by 46 orders, in the following 
manner:— 35 orders furnish from 1 to 5 each, 7 orders from 6 to 10 
each. the largest contributors are Solanacem 15, Leguminosm 20 
Orrammeac 21, aud Composite 24. 
While it is important that we should duly record all plants which 
from time to tune may he observed to have naturalised themselves in 
our colony, it is of equal importance that attention he directed in the 
opposite direction. Have any of the indigenous plants become scarce 
or been lost, or have any species of the introduced ones, after over- 
running a portion of the country, disappeared ? The only instance of 
tins bind of which I can think is that pretty little ' water-weed 
Mydrochrms morsus-rante, Linn. About twenty years ago this plant 
was most abundant m the still waters around Brisbane, but for the oast 
fifteen or more years I have not met with a single specimen ; and 
although it may still bo plentiful in some localities, I know of no 
Queenshand habitat of the plant, and this favours my former opinion 
that the piant was an introduction. 
XII.— DECIDUOUS TREES 
Evergreen trees predominate, as a rule, in all hot or warm 
e imates, and yve find this to be the case in Queensland. Our deciduous 
trees are few m number, and the fall of the leaf, in most cases, is so 
uncertain that the term “ semi-deciduous” would be a better term to 
a PPH to them. For while one tree of a species may be found quite 
bare ot leaves, another by its side may be seen full of leaf, with 
nothing to distinguish it from a purely evergreen species. The 
following constitutes the majority of our trees of this character, a 
small proportion considering that the Queensland Forest Flora cannot 
number less than 1,000 small or large trees : — 
CocMospermun Gillivrcei, Benth. ; Order Bixine®. 
Bomlax malabaricnm , DC., Silk Cotton Tree ; Order Malvac*. 
Sterculici quadrifida, £. Br. ; 
Benth. ; S. acerijolia , A. Cunn. ; 
/S. discolor y F . y. M. ; S. trichosiphon 
Order Sterculiaceae. 
r 
Melia composita, Willd., White Cedar; Order Meliace®. 
Cedrela Toona, ftoxb., Bed Cedar; Order Meliacea?. 
Sesbaina grandjlora , Pers. ; Order Leguminosae. 
Krythrina indica , Lam., Coral Tree; E. vespertilio, Benth., Cork 
Tree ; Order Legummos®. 
