CoLE3fSO. — Botany of tlie North Island of New Zealand. 253 



group be truly and efficiently shown and compared. Nevertheless, this cannot 

 presently be done ; for, to use the words of Dr. Hooker, " the subject is one 

 that cannot be fully worked out without far more materials than have hitherto 



been collected When the floras of the mountains of south Chili, 



New Zealand, South Tasmania, the Australian Alps, the Crozets, Prince 

 Edward's Island, Amsterdam Island, St. Paul's Island, and Macquarrie 

 Island" [and of all other islets lying south of 27° south], " shall have been 

 properly explored" [together with their geology and climate] ," the great 

 problem of representation and distribution in the South Temperate and 

 Antarctic Zone will be solved."* 



19. E-eferring again to those genera which, though not endemic, possess 

 characteristic New Zealand species, the following will be found to be their 

 geographical distribution, including also a few species that are identical : — 

 Myosiorus aristatus, a jDlant of the Chilian Andes ; Drimys, a small genus of 

 only three species, one of which, the celebrated Winter's bark (I), lointeri) 

 is confined to Puegia, and another has recently been found so far north as 

 the alpine mountains of Borneo ; but the New Zealand plant (D. axillaris) 

 is very closely alKed to a kindred plant much nearer home, one of another 

 very small genus of two or three species, the Tasmafiia aromatica of 

 Tasmania. Hymenanthera, a genus of only four species, has a species in 

 New Zealand, one in Norfolk Island, another in Tasmania, and another in 

 Australia. Pittospo7ni,m has about a dozen species in Australia, and one in 

 Tasmania, but " the maximum of this genus will probably be found in the 

 Pacific Islands. "t Colohantlms hillardieri is also found in Tasmania and 

 Campbell's Island. Plagiantlius has a few species in New Holland and 

 Tasmania. JElceocaoyus has several species in tropical India and the Pacific 

 Islands, and one species in New South Wales. Aristotelia has species in 

 Chili, and one in Tasmania. Pennantia, a genus of only three species, one 

 of which {corymhosa) is in New Zealand, one in Norfolk Island, and one on 

 the coast of West Australia. Alectryon excelsum is said (by De CandoUe, 

 with some degree of doubt) to have a single allied species in New Holland. 

 Dysoxylum {Sartiyhsea) has a species in Norfolk Island, and, perhaps, 

 another on the east coast of Ncav Holland. Pelargonium clandestinum is 

 also found in Tasmania, Tristan d'Acunha, and the Cape ; to which countries 

 this extensive genus is almost wholly confined. Oxalis mayellanica is also 

 found in Tasmania and Fuegia. Goriaria — two at least of its species are 

 common in south Chili. Pomaderris has several species in New Holland 

 and Tasmania. JDiscaria, a small genus, is found in South America, Aus- 

 tralia, Tasmania, and the Gralapagos Islands. Clianthus, another small genus, 



* Introductory Essay, "Flora Nov. Zel.," Vol. I., p. 33. 

 t Flora Tasmauije, Vol. I., p. 38. 



