203 
No. 247. 
Acacia Havilandi Maiden. 
Haviland's Wattle. 
(Family LEGUMINOS^E : MIMOS^E.) 

Botanical description. Genus, Acacia. See Part XV, p. 103. 
Botanical description. Species, Havilandi Maiden in Journ. Roy. Soc. N.S.W., 
liii, 182 (1919). 
Following is the original description : 
Frutex glaber pedes pauci altus. Phyllodiis fragilibus pecuariis cdulibus, lineare-subulatis, sub- 
rigidis, fere teretibus, reetis circa 4 cm. longis, tenuissime etriatis, 8 nerviis vix prominentibus, apice obliquo 
pungente. Pedunculis tcnuissimis, 5 cm. longis, capitulis globosis 25-30 floris pallide flavis plerumquc 
4-meris. Sepalis angustis, iere spathulatis, calyce irregulariter lobato, apice hirsute, sepalis dimidio aequi- 
longo. IVtalis laevibus. Ovario densiasime piloso. Legumine lineare, recto vel falcate, ad 7 cm. longo, 
2 mm lato, inter semina valde constricto. Seminibus nigris. 'ongitudinalibus. Funiculo longo pilo simile 
in arillum obliquum carinosum dilate. 
A glabrous shrub of a few feet high with somewhat brittle foliage, edible by stock; the branchlets 
scarcely angular. The thin bark roughish. 
Phyllodia linear-subulate, rather rigid, nearly terete, straight or nearly so, about 4 cm. long, and 
very finely striate with up to eight scarcely prominent nerves, with a pungent, oblique point, and a very 
small gland often 1-5 cm. below it or near the middle of the phyllode. 
ivdunrles thread-like, 5 cm. long, bearing each a globular head of about 25-30 pale-yellowish flowers, 
nn>tly 4-merous, but occasionally 5 merous. Bracts variable, boomerang-shaped to quadrangular, 
Sepals narrow, nearly spathulatc, the calyx irregularly lobed, united to a varying height, hairy at the 
apex and edges about half as long as the petals. Petals smooth. Ovary densely hairy. 
Pod linear, straight or in one curve, up to 7 cm. long, 2 mm. broad, much contracted between the 
seeds, the valves embossed. 
Seeds black, ovate, longitudinally arranged, with a long hair-like funicle, the last fold of which is 
dilated into an oblique, fleshy aril. 
Type, Wong Suey's Paddock, Cobar, New South Wales (Rev. Archdeacon Haviland, 1917). Flowers 
September, fruit November. 
Affinities. 1. With A. rigens A. Cunn. Its nearest affinity appears to be 
with this species, but the most obvious differences appear to be as follows : A . Havilandi 
is a smaller plant, with more brittle phyllodes, which have more numerous, less prominent 
nerves and paler flowers, and a boomerang-shaped bract and a straight or curved pod, 
in contradistinction to the capitate one and the smaller twisted or curly pod oiA. rigens. 
The flowers and flower details and seeds are very much alike. 
