Acacia. J 
XLIII. LEGUMINOSiE. 
513 
110. A. Mangium (an old generic name), Willd. Spec. iv. 1053. Branches 
subtrigonal. Stipules almost wanting. Pkyllodia ovate, acute, attenuated at the 
base, longitudinal nerve parallel to the lower margin of the phyllodium and 
sending out oblique nerves on the upper gide. Peduncles usually solitary, bearing 
a head of flowers. Pod falcate. — Mangium rnontanum, Rumpk. Amb. iii. 
123, t. 81. 
Hab.: Edgecombe Bay, F. v. Mueller. 
This plant is very imperfectly known, and may be identical with A. holosericea , A. Cunn. 
111. A. cincinnata (the pods curled), F. v. M. Fragm. xi. 85'; Ic. Dec. 
ix. 6. Tree or shrub, at first slightly silky, at length glabrescent, the branchlets 
becoming quickly somewhat terete. Phyllodia 4 to 6in. long, 8 to 12 lines broad, 
falcate-lanceolate, chartaceous, 8-nerved, venose-striolate and reticulate, the 
nerves confluent with the lower margin at the base. Spikes axillary, solitary or 
in pairs on short peduncles ; rhachis slender, silky-pubescent ; flowers distant. 
Bracts shorter than the calyx, moderately broad and acute. Calyx sericeo- 
pubescent, almost as broad as long, about J line high, teeth 5, deltoid. Corolla 
5-lobed, a little exceeding 1 line long, glabrous. Style glabrous. ' Pod spirally 
curled, 2 to 3 lines broad, the curl about lin. long, pruinose, grey-blue outside. 
Seeds oval, longitudinal, about 2 lines long ; funicle yellow, twice encircling and 
many times folded at the base of the seed. 
Hab.; Rockingham Bay and several other localities in tropical Queensland. 
Wood of a dark colour, nicely marked, close-grained, hard and tough, of a somewhat greasy 
nature ; useful for cabinet-work, turnery, walking sticks, umbrella handles, &c. Mr. W. 
Macartney, Forest Hill, Mackay, states that this timber resists the attacks of the teredo. — 
Bailey’s Cat. Ql. Woods No. 141d. 
112. A. dimidiata (halved, shape of leaf), Bentli. in Hook. Loud. Journ. i. 381, 
and FI. Austr. ii. 412. Hoary with a minute pubescence or nearly glabrous ; 
branchlets scarcely angular. Phyllodia broadly and obliquely ovate-rhomboid, 
obliquely truncate at the base, usually 3 to 4in. long, 2 to 3in. broad, but on 
some barren shoots twice or three times that size, with 4 or 5 prominent nerves 
more or less confluent with the lower margin at the base, and pinnately net- 
veined between them. Spikes sessile or shortly pedunculate, usually in pairs, 1 
to 2in. long. Flowers mostly 5-merous. Calyx angular, lobed, readily separating 
into distinct sepals. Petals united below the middle. Pod linear, nearly straight, 
2 to 6in. long, 2 to 3 lines broad ; valves coriaceous, very convex. Seeds longi- 
tudinal, ovoid-oblong ; funicle short, thickened into a turbinate or obliquely cup- 
shaped aril at the base of the seed.— A. dolabriformis, A. Cunn. in Hook. Ic. PI. 
t. 169, not of Wendl. 
Hab.: Islands of the Gulf of Carpentaria, R. Brown. 
113. A. humifusa (dwarf habit of plant), A. Cunn.; Bentli. in Hook. Bond. 
Journ i. 382, and FI. Austr. ii. 412. Diffuse or prostrate, softly pubescent or 
tomentose ; branchlets nearly terete. Phyllodia broadly and obliquely ovate- 
rhomboid or almost orbicular, l\ to 2in. long and nearly as broad, or in luxuriant 
shoots nearly twice that size, often undulate, with 3 to 5 nerves more or less 
confluent with the lower margin at the base, and pinnately reticulate between 
them. Spikes sessile, oblong, dense, scarcely exceeding |fn. Flowers mostly 
5-merous. Calyx deeply lobed, pubescent. Petals densely pubescent, united at 
the base. Pod linear, nearly straight, thick, and nearly terete, 1-| to 3in. long, 
2£ to 3 lines broad, coriaceous, pubescent. Seeds oblong, longitudinal ; funicle 
with the last 1 or 2 folds thickened into an obliquely cup-shaped aril at the base 
of the seed. 
Hab.; Islands of the Gulf of Carpentaria, R. Brown : Endeavour River, Banks and Solander : 
Cape Cleveland, A. Cunmnyham : Lizard Island, M‘ G-illivray ; Albany Island, W.Hill: Somerset. 
