24 
AUSTRALASIAN ANTARCTIC EXPEDITION. 
CRASSULACEiE. 
Till,®a moschata D.C. 
Tillcea moschata D.C. Prodr. Ill (1828), p. 382; Hook. f. FI. Nov. Zel. I (1853), p. 76, 
and Handb. N.Z. FI. (1864), p. 61, also Phil. Trans. Roy. Soc. vol. 168 (1879), p. 20; 
T. Kirk Students’ FI. (1899), p. 142; Cheesem. Man. N.Z. FI. (1906), p. 140, 
and Subantarctic Islands of N.Z. (1909), p. 404. Crassula moschata Forst. Comm. 
Gott. IX (1789), p. 26. Bulliarda moschata D’Urv. FI. Malouines (1826), p. 618; 
Hook. f. FI. Antarct. I (1844), p. 15, and II (1847), p. 278. 
Macquarie Island Rocks by the sea, common. Scott (1880); A. Hamilton 
(1894); H. Hamilton (1912-1914). 
This is one of the circumpolar species of the southern hemisphere, found on the 
shores of all the lands between S. lat. 40° and 54°. In Macquarie Island it is abundant 
on coastal rocks, usually mixed with dense patches of Colobanthus and Scirpus 
aucklandicus , the vivid green of which contrasts sharply with the dull red of the Tillcca. 
On wet gravelly beaches it is often associated with Ranunculus biternaius and Callitriche 
ant arctic a, together with the Scirpus already mentioned. 
Tillcea Sinclairii, included in Dr. Scott’s list, is doubtless an error for T. moschata, 
which he does not mention. 
HALORAGEiE. 
Callitriche Antarctica Eng elm. 
Callitriche antarctica Engelm. ex Hegelm. in Verh. Bot. Yer. Brand. IX (1867), p. 20; 
Kidder in Bull. U.S. Nat. Mus. Ill, p. 23; T. Kirk Students’ FI. (1899), p. 156; 
Cheesem. Man. N.Z. FI. (1906), p. 158, and Subantarctic Islands of N.Z. II (1909), 
p. 404. Callitriche verna Linn. var. b terrestris Hook. f. FI. Antarct. 1 (1844), p. 11. 
C. verna Linn, subsp. obtusangula Hook. f. Phil. Trans. Roy. Soc. vol. 168, p. 20 
(1879). 
Macquarie Island :—Common in wet places, often associated with Cardamine 
and Montia. A. Hamilton (1894); H. Hamilton (1912-1913). 
I have seen very few specimens of this from Macquarie Island, and all of them 
in an unsatisfactory condition. They are in young flower only, and show no signs ol 
fruit, making it difficult to be sure of the species, the characters of which depend largely 
on the shape of the fruit. But in habit and flower they agree so well with specimens 
from the Snares and Campbell Island bearing the fruit of C. antarctica that I cannot 
doubt their identity. 
Like Tillcea moschata, this is a true circumpolar plant, and has been recorded 
from almost all the islands of the subantarctic zone. 
