its Applicability to the Ferns , &c. 341 
not reach the outlying islands (Kermadecs, Chathams, Aucklands), or some 
of them. This gives us the following table : 
Table 
IV. 
Wides 
Wides not 
Endemics 
Endemics not 
Range in N. Z . 
reaching 
reaching 
reaching 
reaching 
Islands. 
Islands. 
Islands. 
Islands. 
1001-1080 miles 
27 1 2 3 
4 
5 s 
5 
881-1000 „ 
1 2 2 ( 2 K) 
8 
1 
5 
761-880 „ 
1 
3 
2 
5 
641-760 ,, 
i(K) 
8 
1 
2 
521-640 „ 
!(K) 
9 
2 
2 
401-520 „ 
• — 
5 
— 
— . 
281-400 „ 
i (K) 
5 
1 
1 
161-280 „ 
1 (K) 
3 
— 
1 
41-160 ,, 
1 
— 
1 
0-40 ,, 
— 
2 
— 
2 
Total 
44 
48 
12 
24 
Rarity 
17 
4.6 
2-8 
3-8 
Angiosperms 
2-4 
3*9 
2*8 
6*5 
K means a species reaching the Kermadecs only among the islands, 
though ranging beyond them into the rest of the world. 
This is a very interesting table. In the first place, it shows that 
a sprinkling of wides have come in from the Kermadecs, which have 
supplied part of its flora to, as well as received part of their flora from, 
New Zealand. If we subtract those which only reach the Kermadecs 
among the islands, we get 27 in Class I, 10 in Class II, and 1 in Class III 
with an average rarity of 1-3, or nearly as widespread in New Zealand as 
possible. The 10 all range to Foveaux Strait, which evidently was formed 
very early in the geological history of New Zealand. The one species in 
Class III ranges from Stewart Island up to 200 miles south of North Cape, 
and reaches the Chatham, Auckland, Campbell, and Antipodes islands, 
as well as Australia. 
Turning to the second column, the first thing one notices is the 
irregular graduation of the numbers from top to bottom. This is a very 
strong point in favour of my suggestion made above, that many of these 
wides may have entered New Zealand after the breaking of the land 
bridges. Only 8 of the 48 reach Stewart Island ; 10 more reach Foveaux 
Strait, and 23 reach the North Cape. Their ranges are much more 
scattered about the islands than those of the species in the first column, 
which again is a point in support of my hypothesis. It is also favoured by 
the fact that the rarity of these species is much greater than that of the 
1 Reaching in all 53 of the three chief groups (K., Ch., Au.), and 18 other groups (Campb., 
Antip., Macquarie, &c.). 
2 Reaching in all 14 of the three chief groups, and three others. 
3 Reaching in all 6 of the three chief groups. 
