82 The Vegetation of the Sea-coast. 
Rock-faces in the Marlborough Sounds, though furnished abundantly with 
P. Cookianum and V. Atkinsonii, are distinguished by the presence in plenty of 
Arthropodium cirrhatum, Griselinia lucida and Astelia Solandri, the two latter 
being also abundant on rocks to the S. of Kaikoura (North-eastern district). 
Also the following shrubs, amongst others, are present: — Corzaria ruscifolia, 
Leptospermum scoparium, Rapanea Urvillei, Olearia Forsteri, Cassınia lepto- 
phylla and Brachyglottis. 
>. Olearia insignis sub-association. 
This plant-community is present on most of the cliffs of the North-eastern 
district from about the Amuri Bluff northwards. It is not essentially coastal, 
but in a slightly changed form, extends for many kilometres inland up the 
river-valleys. 0. insignis is a stout low-growing shrub of straggling habit. 
The sparsely-branching stems are grey or black, exceedingly stiff and bearat 
the extremities short, open rosettes of 6—7 obovate, thick, fleshy leaves each 
about 9.5 cm long, shining green above, and beneath clad with dense, felt-like, 
buff tomentum. The roots pass far down into the rock. The shrub grows 
on the dryest and steepest rock-faces. Phormium Cookianum is very abundant, 
' butit is dominant only on more shady rocks, or where there is some amount 
of debris. Other species are: — Cyclophorus serpens, Linum monogynum, Angel- 
. %a Gingidium, Veronica Hulkeana (at times, but beyond the influence. ‘or 
spray) and occasionally Senecio Monroi. 
. Coastal-fern association. 
This occurs only in ee southern part of the Southern botanical province, 
where the climate favours the formation of raw humus, even on a steep rock- 
ace. This is favourable for close settlement, but unfavourable for the wei 
$ Bong of er a In consequence the association is clearly defined. ir 
The lit ıns, Asplenium ee Blechnum durum and someetit 
and may be > sole ‚spec ies Eh in a feeb 
