Cotenso.— Botany of the 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. Referring 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 :— 
Myosurus aristatus, a plant of the Chilian Andes; Drimys, a small genus of 
only three species, one of which, the celebrated Winter’s bark (D. winteri) 
is confined to Fuegia, 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 allied to a kindred plant much nearer home, one of another 
very small genus of two or three species, the Tasmania 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. Pittosporum 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 Colobanthus billardieri is also found in Tasmania and 
Campbell’s Island. Plagianthus has a few species in New Holland and 
Tasmania. Elæocarpus 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 (corymbosa) is in New Zealand, one in Norfolk Island, and one on 
the coast of West Australia. Alectryon excelsum is said (by De Candolle, 
with some degree of doubt) to have a single allied species in New* Holland. 
Dysoxylum (Hartighsea) has a species in Norfolk Island, and, perhaps, 
.4nother on the east coast of New 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 magellanica is also 
found in Tasmania and Fuegia. Coriaria—two at least of its species are 
common in south Chil. -Pomaderris has several species in New Holland 
and Tasmania. Discaria, a small genus, is found in South America, Aus- 
tralia, Tasmania, and the Galapagos Islands. Clianthus, another small genus, 
* Introductory Essay, “ Flora Nov. Zel,’ Vol. I., p. 33. 
T Flora Tasmanis, Vol. I., p. 38. 
