.. 
Ei TORE 
Appendix. #380 
25. Page 291. Indigenous-induced associations. 
An interesting example of the increase of an indigenous plant is afforded 
by the behaviour of Lepidium obtusatum. This is an exceedingly rare species, 
as it occurs only in two localities in each of which its area of occupation is 
small. Near the western entrance to Wellington Harbour it occurred on the 
cliffs. But recent removal of stone from these had led to artificial talus slopes, 
and there the plant is spreading rapidliy by means of underground stems. In 
appearance /. odfusatum represents, even when in flower, a huge crusty saxi- 
frage. Its leaves arranged in rosettes are very thick, glossy and rather dark 
green. The other members of the indigenous-introduced talus association are 
Mesembryanthemum australe and Raoulia australis. 
26. Page 327. The Mesozoic flora. 
The Mesozoic flora as determined by ARBER, (The 'Earlier Mesozoic Floras 
of New Zealand, Wellington, 1917), comprised 48 species classified as follows: 
Equisetales 2 species, Fern-like Plants 27 species, Cycadophyta 6 species, Podos- 
amiteae ı species, Ginkgoales ı species, Coniferales 8, Dee en 
edones) 2 species, Incertae Sedis ı species. 
With regard to Mesozoic land-connections the opinion is expressed that 
such may’ have existed between Antarctica, New Zealand and Australia, but 
that South Africa was not united either to Antarctica or Australia. 
27. Page 328. Glacial Period. 
It appears not improbable that the New Zealand Dlaeial period may have 
been much more recent than indicated in this book. 
