Rock. | 174 
Senecio latifolius*) is common where the rock is wet and EZuphrasia cuneata 
is abundant at lower altitudes. 
In the Ruahine-Cook district, the following characteristic plants occur on 
rock in gorges piercing the high mountains: — Carmichaelia odorata, Fovellana 
repens and Veronica catarractae. On dry rocks in the open, and this applies 
to much of the North Island, the following occur: — Cyclophorus serpens, 
Phormium Cookianum, Poa anceps, Leptospermum scoparium, ee acerosa 
and Brachyglottis repanda. 
d. Southern botanical DR 
2 In the drier parts of the South Island the following species frequently 
occur on rock no matter its nature: — Asplenium flabellifolium, Polystichum 
Richardiü, Gymnogramme leptophylla, Dichelachne crinita, Danthonia semi-an- 
nularis, Poa caesfitosa, Agropyron scabrum, Phormium tenax, Muchlenbeckia. 
complexa, Scleranthus biflorus, Crassula Sieberiana, Rubus australis, R. cissoides 
var. pauperatus, Acaena Sanguisorbae var. pusilla, A. novae-sealandiae, Car- 
michaelia subulata, Geranium sessiliflorum var. glabrum, Oxalis corniculata, 
Coriaria ruscifolia, Discaria toumatou, Pimelea prostrata, Leptospermum sco- 
parium, Epilobium cinereum, Corokia Cotoneaster, ‚Styphelta acerosa, An Fraseri, 
Ölearia Forsteri and Senecio lautus. 
ei he Olearia insignis association, ‚already described for the coast, with a 
few changes in its composition extends inland up the river-valleys of the North- 
 eastern district to an elevation of about goo m. The association is equally at 
home on greywacke and its allied rocks, as on limestone. Inland, the com- 
munity contains much more Veronica Hulkeana and ee Monroi® than does. 
the coastal. In some places Clematis ee Celmi Mr. Anisotome 
= aromatica var. and Wahlenbergü Matthewsiü, are ı 
=, he rock-association of Banks Peninsula. isı 
