602 i Transactions. 
restricted in its distribution than H. flabellatum, although, as has been 
described above, it has a somewhat higher vertical distribution. T. Lyallii 
was not observed. H. Malingii occurs frequently on the kawhaka. 
Throughout the whole Otira neighbourhood the two species H. villosum 
and H. multifidum are dominant. On the lower forest-clad hillsides the 
and fronds of H. villosum is strongly developed (see Plate 59), and also the 
young fronds of H. multifidum are densely clothed with hairs. The other 
oc 
the Otira forest generally at the higher levels seems to be too liable to 
drying for this species to occur there. The main Otira Gorge river-bed 
‚ H. Malingii, along with the mountain form of Н. multifidum, whose young 
fronds also are hair-covered, which are here most in evidence, whose 
characteristic zone on Mount Greenland lies at a rather higher level. As 
has been indicated above, the difference is probably due to the occurrence 
of drying easterly winds at Otira, these being more negligible at Mount 
Greenland. In the neighbourhood of Otira it is noticeable that after several 
g 
that enables it both to preserve the epiphytic station at high altitudes and 
to ascend higher than any other smsa] ; 
