XLIII. LEGUMINOSiE. 
[Acacia. 
486 
Peduncles short, bearing each a small globular head of 12 to 20 flowers, mostly 
5-merous. Calyx lobed, about half as long as the corolla. Petals smooth, 
connate to the middle. Pod ovate and 1 -seeded or oblong and 2-seeded, very 
obtuse, about 4 lines broad, flat but thickly coriaceous, without prominent 
margins. Seeds oval-oblong, longitudinal ; funicle with the last fold much 
thickened and nearly as long as the seed, and shortly folded below it. — Mimosa 
hispidula, Sm. Bot. Nov. Holl. 59, t. 16; A. hispidula, DC. Prod. ii. 450; Lodd. 
Bot. Cab. t. 823; Hook. Ic. PI. t. 161. 
Hab.: Cooper’s Plains, near Brisbane. 
19. A. undulifolia (wavy-leaved), A. Cnnn. in G. Don, Gen. Syst. ii. 404 ; 
Benth. FI. Austr. ii. 355. A shrub, sometimes low and bushy but often attaining 
a great size, and very handsome from its long pendulous garland-like flowering 
branches ; branchlets slightly angular but soon terete, pubescent, hirsute, or 
rarely glabrous. Phyllodia numerous, ovate or almost orbicular, very obliquely 
truncate or narrowed at the base and often petiolate, usually about ^in. but 
varying from \ to nearly lin. long, coriaceous, undulate, 1-nerved and penni- 
veined, the margins thickened, terminating in a short or fine point. Peduncles 
slender, often exceeding the phyllodia, bearing each a globular head of 20 to 30 
or more flowers, mostly 5-merous. Calyx very short, toothed. Petals smooth, 
united above the middle. Pod shortly stipitate, 7 to 9 lines broad, very flat, 
with nerve-like margins. Seeds flat, ovate, oblique ; funicle with the last fold 
thickened and not half so long as the seed, and short folds below it. — Bot. Mag. 
t. 3394; Lodd. Bot. Cab. t. 1544; Lemaire, -Tard. Fleur, t. 282; A. uncinata, 
Lodd.; Lindl. Bot. Reg. t. 1332; A. piligera, A. Cunn. in Bot. Mag. under n. 
3394; Hook. Ic. PI. t. 166 (A. setigera, A. Cunn.) 
Hab.: Southern Queensland. 
20. A. plagiophylla (transverse-leaved), F. v. M. Journ. Linn. Soc. iii. 
131 ; Ic. Dec. iv. 5. A compact small shrub, the branchlets more or less angular 
and pubescent. Phyllodia numerous, glabrous, seldom attaining ^in. in length, 
obliquely truncate at the base, 1-nerved, margins thickened, terminating in a 
sharp point, the upper margin curved with a sharp point near the base, the lower 
margin nearly straight. Peduncles solitary, slender, usually twice as long as the 
phyllodia, bearing a globular head of about 20 5-merous flowers. Calyx broadly- 
toothed. Petals lanceolate, much longer than the calyx. Pod stipitate, oblong, 
flat, from 1A to 2in. long, Ain. broad, with nerve-like margins. Seeds 3 to 4 in a 
pod, oval, transverse in the pod ; funicle straight, sharply bent and thickened 
close under the seed. — A. undulifolia, var. humilis, Benth. FI. Austr. ii. 356. 
Hab. Along the North Coast Railway line. 
Scarcely more than a form of A. undulifolia , A. Cunn., as stated by Mr. Bentham in FI. Austr. 
ii. 357, but figured as a distinct species by Baron Mueller, l.c. 
21. A. Grnidium (Gnidia-like), Benth. FI. Austr. ii. 359. A small tree, 
glabrous with the young shoots glutinous ; branches erect, virgate, soon 
becoming terete. Phyllodia numerous, erect, narrow-linear, obtuse with a small 
callous hooked point. 1 to 2in. long and not above 1 line broad, rigid with a 
scarcely prominent midrib, the lateral veins obscure, anastomosing, and some- 
times almost parallel. Peduncles slender, nearly Ain long, bearing each a 
globular head of 15 to 20 flowers, mostly 5-merous, but often also 4-merous. 
Calyx shortly and broadly lobed, half as long as the corolla. Petals smooth. 
Pod unknown. 
Hab.: Under sandstone hills near Mount Pluto, Mitchell. 
On a hasty survey, I had formerly put this aside as a variety of A. viscidula, from which, how- 
ever, on examination I find it to differ essentially in the venation of the phyllodia as well as in 
the flowers. — Benth. 
