= * latım. 
254 The Vegetation of the Kermadee Islands. 
tant members are: -— Asplenium obtusatum, Poa polyphylla (endemic), Maris- 
cus ustulatus, Scirpus nodosus, Parietaria debilis, Mesemöbryanthemum australe, 
Tetragonia expansa, Apium prostratum, Samolus repens var strictus, Lobelia 
anceps and Coprosma petiolata ee and ecologically equivalent to C. Bazer:). 
2. Talus slopes. 
These, at the base of sea-cliffs are characterized by close-growing tussocks 
of Mariscus ustulatus together with the ferns Pieris comans and Hypolepis 
tenurfolia, tussocks of Scerpus nodosus and Carexr semi-Forsteri and shrubby 
Myoporum laetum. 
3.Scrub, 
| Scrub forms a belt, where there is sufficient space, between the foot 
of the cliffs and ee mark; it also constitutes most of the vegetation 
of Meyer Island. Shrubby Myoporum laetum is dominant. Other members 
of the association are: Pieris comans, Mariscus, Carex pseudo-Forsteri, 
Macropiper excelsum var. major, Canavalia obtusifolia and Sicyos australis 
(tendril liane). | 
4. Dune. 
Dune is extremely limited in area. /pomaea pes caprae is easily dominant 
and extends to some metres on to the beach other species are: — Imperata 
 Cheesemanii See RE nodosus and RR: 
5. Gravel flat. 
A Denkine Bar: a gravel flat extends for 2 km with an average width of 
GR m. It is subject to frequent drenching by sea-spray. The leading species 
‚are: — Ipomaea pes caprae (dominant), /mperata Cheesemanii, Calamagrostis 
 Forsteri, Mariscus ustulatus (sub-dominant), Scirpus nodosus (abundant), Terra-. 
gonia expansa, Myoporum laetum, Calystegia Soldanella, Scaevola nn and 
RS: ee = 
b. Inland Formations. 
u 1. Rock. er = FE 
‚The Fall are RR rock-plants: — ae serpens, Asple- 
nium Shuttlewortianum, Psilotum Zriquetrum, Carex semi-Forsteri, Peperomia | 
Endlicheri, Mesembryanthemum australe, Hydrocotyle moschata, Veronica breui- 
„Facemosa uni. RER gracilis and EEREEDÄRR DIE: 
= 
| a "Warm ground near steam-vent. Be 
Se " Although where the steam strikes directly there are no plants, at 5 or 
distance away is a close growth of: — Nephrolepis exaltata, Polypodium di- 
m, Lycopo li e sn, Poilorum: tes and rag 
a Er nn Swamp. ä ns Er 
hen are a a few. ‚small swamps.. Tapta nenn var. f 
= sehn 
dominant Other. species are: — / 
