596 Transactions. 
by Mr. Cheeseman, to whom I submitted them, to be “a large slender 
state" of this species. Although for the most part each species has a 
very characteristic frond-form, yet it is evident that they are in a more 
plastic condition than such species as H. demissum or H. bivalve, and it 
seems likely that one species is a derived form of the other. Since H. atro- 
virens is endemic to New Zealand, it seems reasonable to regard it as the 
altitude of 2,000 ft. It is most characteristic of the deep, closely sheltered 
creek-beds and ravines оп the lower flanks of the mountain-ranges an 
outliers, where it is to be found as an abundant epiphyte in thick moss up 
to a height of 20 ft. above the ground. It does not seem to occur in the 
flat coastal forest, and hence may be regarded as an upland plant. The 
pendulous fronds of this species probably attain a larger size than do those 
of any other of the New Zealand family, in favourable localities frequently 
reaching a length of 2 ft. to 3ft. It differs widely in form from any other 
In Westland, Libocedrus is a common member of the subalpine forest 
association, but it also descends in places into the lowlands. The restric- 
tion of H. Malingii to the trunks of this tree in Westland I have found to 
be practically invariable. The similarity in the outer surface of the trunks 
of the kawhaka, rata, and mountain-totara, which together make up the 
subalpine forest association, led me to give particular endeavour to discover 
whether or not H. Malingii occurs on either of the two latter as well as on 
the former, but out of some thousands of trees examined from time to time 
