Notice of Dr. Hooker’s Flora of New Zealand. 247 
ted, very much in proportion to the facilities they present for disper- 
sion. Thus the most minute-spored Cryptogams* are the most widely 
dispersed of all organized nature; plants that resist the influence of 
climate best, range furthest; water-plants are more eosmopolite than 
land-plants, and inhabitants of salt, more than those. of fresh water: 
the more equable and uniform is the climate of a tract of land, the 
d 
scriptions of the New Zealand Fungi) fails to find the most trifling 
character by which to separate many New Zealand species from Eu- 
ropean. 
har 
unaltered in spite of the change of constitution, just as the climate of 
One part of the globe disagrees with the human race of another, and is 
even fatal to it. 
uch are a few of the leading phenomena or facts that appear to me 
to give the greatest weight to the opinion that individuals of a species 
are all derived from one parent: for such arguments as the New Zea- 
land Flora furnishes, I must refer my readers to the following chapter. 
I would again remind the student that the hasty adoption of any of 
these theories is not advisable: plants should be largely collected, and 
Thus some of the seedling Pines whose parents grew at 12,000 feet appear har- 
» Whilst those of the same species from 10,000 are tender. The common sear! 
ron of Nepal and the Northwest Himalaya is tender, but seedlings 
ae from Sikkim, whose parents grew at a greater elevation, have proved 
uy hardy, 
