u id sine 
300 The Botanical Subdivisions of New Zealand. 
Islands. The total number of species is more than 1358 of which the large number 
of 545 is confined to the province. About 60 North Island species are confined 
to the N. of or do not extend far to the S. of latitude 42°°). 
Ecologically, there are two distinct areas, the one with a rain-forest and 
the other with a steppe climate, where forest, except under special circumstances, 
is absent. The forest contains far fewer species than that of the Northern 
and Central provinces, but when rain-forest, is essentially of the same sub- 
tropical type though its lianes and epiphytes are fewer and its tree-ferns less 
ne Nothofagus forest is a common feature. The alpine flora is highly 
developed and consists of 597 species 423 of which are confined to the province. 
5. The Chatham Province. 
This consists of Chatham and Pitt Islands and the adjacent islets. The 
flora consists of 240 species, 33.0f which are endemic, 20 of which differ in 
certain minor particulars from the mainland forms. The genera Corella and 
Myosotidium are endemic. (The recently discovered Cotula Renwickii is con- 
sidered in the above estimates). ‚ 
The principal plant-formations are forest and moor. The forest consists 
of two classes both made up largely of endemic trees, in the one class the 
New Zealand Corynocarpus laevigata is dominant, and in the other, the endemic 
Dracophyllum arboreum and Senecio Huntü. The moor is of different types, 
but se Traversü, Dracophyllum ERBE and Olearia semmdentata 
are most important co constituents. 
6. The Suhanssretie Province. 
This includes all the New Zealand Subantarctic Islands as noted in Part n 
_ Chapter I. The flora consists of 187 species of which 55 are endemic. The 
 plant-associations of these distant groups are far from uniform, but tussock- 
® en moor is a most FRBraSBER Ele. Fee The genus ee is endemic. | 
g The Botanicak Distriets. 
we 1. The Kermadec District. ee Se 
This eoresponds wäh the Kermadec prorsee aa desbed abor The 
= ndash species are, — Cyathea Milneit?), C. kermade Imperata RE 
mie, Peg ar He 2 2ehphjliat, Ascarina lanceolata, Boeh- 
