Kirx.—On a revised Arrangement of N.Z. Species of Dacrydium. 883 
specimens from alpine habitats look very different to that plant, fruited 
specimens from low levels are undistinguishable. I have not had the 
opportunity of examining male eatkins of P. rhomboidalis, but believe they 
are longer and more slender than those of our plant. 
Art. LIIL.—4A revised Arrangement of the New Zealand Species of Dacry- 
dium, with Descriptions of new Species. By T. Kmr, F.L.S. 
Plates XVIIL.—XX. 
[Read before the Wellington Philosophical Society, 2nd February, 1877.] 
Amonast the Protean plants of New Zealand few genera are in a more 
unsatisfactory condition than Dacrydium. The unisexual character of the 
species, the difficulty of procuring good flowering and fruiting specimens 
from the same individuals, and the local and difficult habitats of several 
forms, have led to great perplexity, through the combination of distinct 
species and a want of precision in the limitation of those admitted. It is 
hoped that the present paper will tend to remove these difficulties, although 
it must not be looked upon as final, since we may fairly expect that other 
species will yet be discovered in the mountain districts of the central 
portion of the North Island and the south-western portion of the South. 
Although my attention has been specially directed to this genus for the 
last ten years, it was not until the commencement of last year that I was 
able to solve the difficulties by which it was surrounded, and to lay down 
more precise limitation for the recognized species with descriptions of 
others new to science. I am pleased to say that Sir Joseph Hooker and 
myself have independently arrived at the same conclusions, except with 
regard to a single species, and I take the opportunity of expressing my 
thanks to him for his valued notes, and for the opportunity so kindly 
afforded me of comparing several of the original specimens of Bidwill, 
Lyall, Colenso, and Hector, with my own collections. 
The New Zealand species form two natural groups—the first distin- 
guished by the young plants'possessing terete spreading leaves which pass 
by very gradual transition, sometimes extending over a number of years, 
into the abbreviated and closely imbricated condition, characteristic of the 
mature state. With one exception all the species of this group are charac- 
terized by solitary fruit. 
Inthe second group the young plants exhibit flat, linear, spreading leaves, 
which for the most part pass abruptly into the quadrifariously imbricated 
leaves characteristic of the fruiting state ; leaves of an intermediate kind are 
