KiEK. — On Pleiirophylluni. 431 



FiLICES. 



Lomaria dura, Moore. 



Asplcnium obtusatum, Forster. 



Aspidium aculeatum, Sicartz, var. vestitum. 



NATURALIZED. 



Gramine^. 

 Dactylis gloiiierata, L. 

 Holcus lanatus, L. 

 Poa annua, L. 

 Lolium perenne, L. 



Apart from the striking- plants specially mentioned in the 

 body of this paper, the chief conclusions to be drawn from the 

 list are of a negative character, but some of them are of con- 

 siderable importance. For instance, it shows that arborescent 

 ferns do not extend beyond the southern extremity of Stewart 

 Island, thus determining their extreme limit in the South 

 Hemisphere to be in 47° 20' south latitude. The same remark 

 applies to Coniferai ; also to Drimys, Melicijtus, Piitosporum, 

 Arisiotelia, Buhus, Carpodetus, Wcinmannia, Lcptospermum, 

 Myrtiis, Fuchsia, Tctragonia, Pseudopanax, ScJiefflera, Gaul- 

 theria, CyatJiodes, Leucopogon, Bliipogonum, and other genera 

 characteristic of the New Zealand flora. 



Art. XLVII. — On Pleurophyllum, Hooh. f. 

 By T. KiKK, F.L.S. 

 [Read before the ^Vellingtoii riiilosophical Socicttj, I'Jth Fehniarij, ln'Jl.] 

 Plates XXXIX. and XL. 



This fine genus is endemic in the Antarctic islands, and com- 

 prises three species, two of which were discovered during the 

 visit of the Antarctic Expedition under Sir James Eoss i]i 

 1840, and were described by Sir Joseph Hooker, the botanist 

 to the expedition, in the first volume of his grand work on 

 the flora of the Antarctic islands, published in 1845. The 

 occurrence of such striking and beautiful plants on those 

 small islands could not have been anticipated, and their dis- 

 covery excited considerable interest in the botanical world ; 

 but it was scarcely to be expected that half a century would 

 elapse before further information respecting them would be 

 available. 



