242 Essays. 
12. In further endeavouring to show the distribution of the plants of the 
North Island by zones surrounding the same, the more noteworthy and 
stable genera and species alone will be noticed. These will be divided into 
eight zones, as follow :— 
(1.) Maritime and Littoral. 
(2.) Coast, mostly within a few yards above high-water mark. 
(3.) Lowland,—from the Coast to an altitude of 500 feet. 
(4.) Midland,—from 500 to 1,500 feet altitude. 
(5.) Upland,—from 1,500 to 2,500 feet altitude. 
(6.) Mountainous,—from 2,500 to 3,500 feet altitude. 
(7.) Sub-alpine,—from 3,500 to 4,500 feet altitude. 
(8. Alpine,—from 4,500 to snow line. 
(1.) The Maritime an eimi zone contains :— 
Myosurus aristatus um filiforme Plantago spathulata 
Ranunculus acaulis » Australe Chenopodium 
Lepidium oleraceum Coprosma retusa Atriplex (sp.) 
$5 incisum petiolata Salicornia indica 
Plagianthus divaricatus kasio lautus Euphorbia glauca 
` Fuchsia procumbens Goodenia repens Desmoschonus spiralis 
Metrosideros tomentosa* Calystegia soldanella Leptocarpus simplex 
Mesembryanthemum australe Avicennia officinalis Carex littorea 
Tetragonia pe nat . Myoporum letum Spinifex hirsutus 
» trigyna Samolus littoralis , 
(2.) The Coast zone contains :— 
Hymenanthera crassifolia Senecio "n Pisonia bru 
Pittosporum crassifolium Mulonbeckia ephedroides 
ibiscus trionum Gokas sera Sueda m 
Ente rescens Pratia pe elea arenaria 
Discaria toumatou Sapota costata Piper excelsum 
Corynocarpus levigatat Dichondra repens eperomia ana 
Gunnera prorepens Mimulus repens Triglochin flaccidum 
Sicyos angulatus Veronica macroura Arthropodium cirrhatum 
Eryngium vesiculosum » speciosa Bromus tea 
Meryta sinclairii » parviflora Triticum 
Coprosma acerosa » diosmeefolia Parmelia procs 
Cassinia retorta 
(3.) The Lowland zone, from the coast to an altitude of about 500 feet, 
contains :— 
Clematis hexasepala Weinmannia sylvicola Hypoxis hygrometrica 
Ranunculus plebeius Angelica gingidium Loxsoma cunninghamii 
* The pohutukawa (Metrosideros tomentosa) is truly a littoral plant ; and yet (in 1841) 
I detected it growing on the sandstone rocks of the high inland lake Waikare, about seventy 
miles from the sea ; and I find from Dieffenbach (Vol. I. p. 384) that he too had observed 
it growing on the trachytic cliffs of the occid iens Tarawera (1,075 feet alt., apud 
Hochstetter), at about the same distance from the 
T Tbe karaka (Corynocarpus levigata) is lara) 2 coast plant; but it is sometimes 
found growing in the interior, in clumps or singly, particularly in the more northern parts, 
and on the shores of Lake Taupo, where it has been planted as a fruit-bearing tree by the - 
New Zealanders. 
S 
