CONTENTS. 



PAGE 



1 . General Remarks ... ... ... ... 3 



2. The Natural Floristic and Ecological Divisions ... 6 



(a) The Coastal, Lowland and High-mountain Floras 6 



(1) The Coastal Flora ... ... ... 6 



(2) The Lowland Flora ... ... ... 7 



(3) The High-mountain Flora ... ... 8 



(b) The Botanical Subdivisions of the New Zealand 

 Region ... ... ... ... 9 



3. Some outstanding Features of Plant-distribution in New 



Zealand ... ... ... ... 11 



(a) Cook Strait not a barrier to plant-distribution ... 11 



(b ) The relation of Latitude to plant-distribution ... 12 



(1) General ... ... ... ... 12 



(2) Latitude 36 S. as a phytogeographical barrier 13 



(3) Latitude 38 S. as a phytogeographical barrier 14 



(4) Latitude 42S. as a phytogeographical barrier 15 



(c) The effect of the Southern Alps and the Coastal 



Mountains of North-western Nelson on plant- 

 distribution ... ... ... ... 16 



(d) The effect of the frequent south-west wind on 

 plant-distribution in the South Island and Stewart 

 Island ... ... ... ... 18 



( e) The effect of altitude on plant- distribution ... 20 



(f) The effect of the edaphic factor on plant-distri- 

 bution ... ... ... ... 21 



4. Continuous and discontinuous distribution ... ... 25 



Addenda . 27 



