14 Transactions. 



Scirpus aucklandicus Boeck. 



This also has been collected on Macquarie Island for the first time b}' 

 Mr. H. Hamilton. Its existence thereon might have been safely predicted, 

 seeing that it is the most common species of the genus on the islands to 

 the south of New Zealand. It has also been recorded from Tasmania and 

 from the isolated Amsterdam Island, but both these localities require fuller 

 confirmation. 



Carex trifida Cav. 



Fringing swamp-holes on flats at West Point, Macquarie Island ; 

 H. Hamilton ! Apparently not common, for Mr. Hamilton remarks 

 on his labels that it was seen only in the locality quoted above. The 

 geographical distribution of the species is given in the Manual. 



Triodia macquariensis Cheesem. 



" 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. broad, deeply striate, quite glabrous, 

 flat or involute, margins thickened, tips obtuse, callous ; ligules broad 

 ovate, thin and membranous ; sheaths unusually long, much broader than 

 the blades, sometimes as much as 5 mm. across, smooth, pale, and mem- 

 branous. Panicle narrow, glabrous, 2-3 cm. long ; branches few, short, 

 erect. Spikelets 6-15, 3-5-flowered, 6-7 mm. long, the lowest flower sessile 

 at the base of the spikelet, the upper usually remote from one another. 

 Empty glumes unequal, the lower half to two-thirds the length of the 

 upper, glabrous, oblong, obtuse, 3-nerved. Flowering-glumes ovate or 

 broadly ovate-oblong, rounded at the back, not keeled, 5-nerved, glabrous 

 or very faintly pubescent on the nerves, minutely 3-toothed at the tip or 

 irregularly erose. Palea broad, 2-keeled, the keels ciliolate. Lodicules 2, 

 acute. 



" Hah. — Macq.uarie Island, rocks and cliffs near the coast ; H. Hamil- 

 ton ! (1912-13). 



" Mr. Hamilton remarks that this is a common coastal grass, found in 

 crevices in bare rock or on the cliffs. Some of his specimens are plentifully 

 mixed with Tillaea moschata or Colobanthiis muscoides, both plants common 

 in littoral situations. Scraps of Callitriche antarctica are also present. Its 

 discovery adds another species to the list of those endemic in Macquarie 

 Island, of which three species are now known — Deschampsia penicillata, Poa 

 Hamiltoni, and Triodia macquariensis. I have found it a puzzling plant 

 to place. It differs from Poa principally in the flowering-glumes being 

 rounded on the back, and minutely 3-toothed (or irregularly erose) at the 

 tip. It agrees with Atropis in the flowering-glumes being rounded on the 

 back, but differs in habit, and in the 3-toothed tip of the flowering-glume. 

 Although not a typical Triodia, it must be kept in the vicinity of the New 

 Zealand T. australis." 



The above has appeared in my memoir on " The Vascular Flora of 

 Macquarie Island," published in the Scientific Rep)orts of the Australasian 

 Antarctic Expedition. I reproduce it here to draw fuller attention to the 

 species, which may occur in the islands to the south of New Zealand. 



Festuca erecta D'Urville. 



Macquarie Island, not uncommon on rocks near the sea ; Dr. Scott, 

 A. Hamilton! H. Hamilton! This is the plant described as a new specie^ 



