34 
AUSTRALASIAN ANTARCTIC EXPEDITION. 
Macquarie Island :—Swampy flats near the sea, not uncommon. A. Hamilton; 
H. Hamilton (1912-1913). 
There are several sheets of specimens of this species in H. Hamilton’s collection. 
Although variable in size, and in the degree of development of the panicle, its floral 
characters appear to be fairly constant, and agree well with specimens that I have 
examined from Auckland Island, Canterbury, and Otago. It was first collected by 
Sir J. D. Hooker on Campbell Island in 1840. 
I). Chapmani is closely allied to the two New Zealand species, D. novce-zealandice 
and D. tenella . The first of these is best distinguished by the total absence of the dorsal 
awn; the second is separated by the hairy rhachilla. In habit and mode of growth 
there is little to separate the three plants, and they were grouped together by T. Kirk 
under the name of D. Hookeri. It is really little more than a matter of taste whether 
this view is adopted, or whether the three species are kept up. 
Deschampsia penicillata T. Kirk. 
DescJiampsia penicillata T. Kirk in Trans. N.Z. Inst. XXVII (1895), p. 354 ; Cheesem. 
Man. N.Z. FI. (1906), p. 879 ; Petrie in Subantarct. Islands of N.Z. II (1909), 
p. 475. 
Macquarie Island :—In swamps. A. Hamilton (1894). 
I regret that this species was not collected by H. Hamilton during his recent visit. 
Our knowledge of it is thus confined to the two specimens originally described by Kirk. 
While it has the hairy rhachilla of D. tenella and D. gracillima, it differs from both in 
the total absence of the dorsal awn, and in the rhachilla being produced beyond the 
upper flower, often bearing a rudimentary glume at the tip. It is presumably confined 
to Macquarie Island. 
Triodia macquariensis Cheesem. n.sp. 
Gramen perenne, dense caespitosum. Culmi numerosi, erecti vel geniculati, 
multinodi, 6-12 cm. alti, laeves, glabri, ad paniculam vaginati. Folia summa paniculam 
excedens, linearia, 1-2 mm. lata, glabra, profunde striata, plana vel involuta, apice 
calloso-indurata; ligula lata, scariosa; vaginae elongatae, latae, albidae, membranaceae. 
Panicula contracta, glabra, 2-3 cm. longa, parce ramosa. Spiculae 6-15, 3-5 florae, 
6-7 mm. longae; rhachilla inter flores elongata, glabra. Glumae vacuae inaequales, quam 
florentes multo minores, oblongae, obtusae, trinerves. Glumae florentes ovatae vel lata 
oblongae, 5-nerves, glabrae, apice minute 3-dentatae vel irregulariter erosae. Palea lata, 
2-carinatae, carinis ciliatis. Lodiculae acutae membranaceae. 
Macquarie Island —Rocks and cliffs near the coast. H. Hamilton (1912-1913). 
Apparently perennial, tufted, often forming dense patches, smooth and glabrous. 
Culms numerous, erect or geniculate at the base, 6-12 cm. long, leafy to the base of the 
panicle. Leaves equalling the culms or longer than them, rather narrow, 1-2 mm. 
