8 
No. 113. 
Acacia Baileyana, F.v.M. 
Cootamundra Wattle. 
(Family LEGUMINOSyE: MIMOSEyE.) 
Botanical description.— Genus, Acacia. (See Part XV, p. IGF) 
Botanical description.— Species, A. Baileyana, F.v.M., Trans. Boy. Soc. Viet., 
1887 ( 1888 ), p. 168 . 
Arborescent ; branch lets prominently angular, somewhat furrowed, glabrous or beset with short 
spreading hairlets. 
Leaves bipinnate, almost sessile or on very short stalks, glabrous or the main-rhachis b' aring 
hairlets when young, as well as the branchlets and flower-stalks somewhat whitish from 
eeraceous bloom. 
Pinnules usually in three or four or sometimes in two pairs, oval or broad-elliptic in outline, 
almost sessile, a very conspicuous depressed glandule between each pair. 
Leaflets in from four to twenty closely approximated pairs, sessile, rather short, linear, Hat, "blunt 
.at the base, slightly acute at the apex, their carinular venule faint. 
Khacheole greenish-margined. 
Headlets of flowers small, in elongated almost glabrous axillary and also paniculate terminal 
racemes. 
Bracts minute, ciliolated, their upper portion suddenly roundish-dilated. 
Calyx bluntly short-lobed. hardly half as long as the deeply five-cleft corolla. 
Fruit straight, broadish, almost flatly compressed, smooth, rather elongated, at both ends blunt, 
along the anterior side dehiscent; pericarp eartilaginous-chartaceous. 
Seeds oblique-pendent, ovate-elliptic, much compressed, black, with hardly any lustre, their 
areole on each side large; arillar appendage pale, eymbous-semi-orbicular, less than half as 
long as the seed ; funicle comparatively short, slightly twisted. 
A small tree of particularly graceful aspect ; leaves crowded; well developed pinnules about 
1 inch long; leaflets generally from to .b inch broad; headlets on very thin stalklets of double or 
triple their length, containing from 10 to 18 flowers; fruits mostly from 2 to 3 inches long and about 
half an inch broad, dull-brownish outside; seeds scarcely a quarter of an inch long. 
This species seems always to have been passed as A. polybotrya ; but it differs essentially from that 
species in glabrous leaves, with usually less numerous and always shorter pinnules, the form of which gives 
a very peculiar aspect to the plant; in smaller and particularly narrower leaflets, with hardly any inter¬ 
vening spaces between them ; in highly developed glandules on the rachis ; in glabrous, thinner, and often 
also longer stalks of the headlets of flowers, with still smaller basal bracts; in deeper-lobed corolla ; in 
broader fruit not constricted between the seeds, further in probably larger arillar appendage, so far as can 
be judged from comparison of fruit of A. polybotrya, available here in a young state only. Stature, bark, 
wood, and odour of flowers of the two trees may also be quite different. The height of the tree, so far as 
known, seldom exceeds 15 feet; the bark is of a greyish or slaty colour, and smooth; the flowering time 
is about the earlier part of September. 
