32 
AUSTRALASIAN ANTARCTIC EXPEDITION. 
Scirpus aucklandicus was first gathered on Macquarie Island by H. Hamilton, 
who observes that it occurs in small patches in swampy hollows, and on low-lying 
coastal flats. Probably it is abundant in suitable localities all round the island. It 
is the most plentiful species of the genus in the islands to the south of New Zealand, 
and is common in mountain districts in New Zealand itself. It has also been recorded 
from Tasmania, and from the isolated Amsterdam Island. 
Uncinia riparia R.Br. var. Hookeri Kukmth. 
Uncinia riparia R.Br. Prodr. FI. Nov. Holl. (1810), p. 241, var. Hookeri (Boott) 
Kukenth. in Pflanzenr. Heft 38, p. 63; Cheesem. Subantarct. Islands of N.Z. II 
(1909), p. 434. TJ. Hookeri Boott in Hook. f. FI. Antarct. I (1844), p. 91, t. 51. 
U. rupestris Boott in Hook. f. FI. N.Z., I (1853), p. 286, and Hook. f. Handb. 
N.Z. FI. (1864), p. 310; Cheesem. Man. N.Z. FI. (1906), p. 804. 
Macquarie Island : — Ascending the hills to a considerable height. A. Hamilton 
(1894). 
I have seen no specimens of any species of Uncinia from Macquarie Island, and 
there are no examples in H. Hamilton’s collection. But it is quite certain that a species 
of the genus was collected during the earlier visit of A. Hamilton. His specimens were 
examined by Kirk, who referred them to U. nervosa Boott. He remarked that “ this 
is intermediate between U. compacta R.Br. and U. tenella R.Br.; the leaves closely 
approach those of the former, while the fruits resemble the latter, but are of a darker 
colour, and more glossy.” I am informed that at a later date Kirk referred the 
specimens to U. rupestris Raoul, in which he also included the Uncinias gathered by 
himself on the Auckland Islands and Antipodes Island in 1890. In this view he was no 
doubt influenced by the opinion of the late Mr. C. B. Clarke, who had previously referred 
Boott’s U. Hookeri from Auckland and Campbell Islands to U. rupestris. I adopted 
the same view in the “ Manual,” but when preparing my memoir on the Subantaretic 
Islands, I was led to re-examine the question in the light of much more complete 
material. 1 now agree with Kukenthal, who has made a special study of the genus, in 
considering that neither Hooker’s nor Kirk’s specimens agree with Raoul’s description 
and plate, and are much better included in R. Brown’s U. riparia. Until further 
information is obtained respecting the Macquarie Island plant it is better to treat, it 
in the same manner. 
Carex trifida Cav. 
Carex trifida Cav. V (1799), p. 41, t. 465; Hook. f. FI. Antarct. I (1844), p. 89, also II 
(1847), p. 368, and FI. Nov. Zel. (1853), p. 284; Cheesem. Man. N.Z. FI. (1906), 
p. 833, and Subantarct. Islands of N.Z. II (1909), p. 434. 
Macquarie Island :— Fringing swamp-holes on flats at West Point. H. Hamilton 
(1912-1913). 
