115 
Now we come to A. adunca, A. Cunn. 
A. adunca (Cunningh. mss.) phyllodia straight, elongated, linear, attenuated at the hase, but 
rounded at the apex, ending in a callous muci'one, which forms a right angle with the phyllodia, 1-nerved, 
and hearing a gland on the upper margin between the middle and the hase ; heads of flowers crowded, 
disposed in terminal and axillary racemes. Native of New South Wabs. “ Hooked Acacia” shrub, 3 to 
6 feet. (Don’s General History of the Diehlamydeous Plants , vol. ii, 1832, p. 406.) 
Iii the following passage Bentham makes it a variety ot‘ A. crassiuscula :—- 
u Ac-zeia crassiuscul'i var . adn.nca. Phyllodiis longioribus, (usque ad 4 poll.) glandula a basi 
remotiore. A. adunca , Cunn. in G. Don Gard. Diet, ii, 406, Hunter’s River, Cunningham” (Bentham in 
Hooker’s London Journal of Botany , vol. i, 1842, page 356). 
Bentham (B.F1. ii, 372) still looks upon A . adunca as a synonym of A. 
crassiuscula, Wendl., but 1 will show that it is a distinct species, and that 
Cunningham’s name should stand. 
Through the kindness of Colonel Prain, Director of Kew, I have received two 
specimens of A. adunca , A. Cunn., as follows :— 
(1) Following is a copy of the Kew label:— 
115. Acacia crassiuscula Wendl. ( A. linearifolia, Cunn.) 
Blue 
Mountain Dec. 
84 
1825 
New South Wales, A. Cunningham. 
The last three months of 1825 were spent by Cunningham in the vicinity of 
Wellington Valley, N.S.W., and he botanised about 150 miles on each side of 
the Macquarie River. 
Coming back to Sydney, he would, of course, have to cross the Blue 
Mountain (s), and the following is the only reference I can find in his MS. journal 
to the Blue Mountains, which indicates little more than a rapid journey over them 
at the very close of the trip. 
This is what he records (p. 187, Journ. labelled 1822-30) :— 
“In my route over the Blue Mountains I again visited the vicinity of the Cascade,* providing 
myself with a large supply of the roots of Blandfordia nobilis. On the morning of the 29th I again 
crossed the Nepean River, and at the close of the day, myself and establishment arrived safe at Parramatta, 
after an absence of twelve weeks.” 
There is no day of the month (December) given in the label from Kew. 
I do not know such an Acacia as occurring in the Blue Mountains, and 
would suggest that Cunningham got it somewhere in the vicinity of the Macquarie 
River; the precise locality is, however, unknown at present. 
(2) Following is a copy of the second Kew label:— 
115. Acacia adunca, A. Cunn. 
A. crassiuscula, Wendl., (3. adunca. 
Benth. in London Journal Dot. i, 
356. Hunter’s River, New South 
79 
Wales, A. Cunningham, July , 
s J 1827. 
(N.B.—115 is Bentham’s number for A. crassiuscula , Benth., in Hooker’s 
Land. Journ. Bat., i, 356 (1842)—J.H.M.) 
Presumably near Wentworth Falls. 
