502 



ISLAND LIFE 



PAET II 



do occur with a few remarks. They are sixteen in number, 

 as follows : — 



1. Pennantia (1 sp.)- This genus has a species in Norfolk Island, indi- 



cating perhaps its former extension to the north-west. 



2. Pomaderris (3 sp.). One species inhabits Victoria and New Zealand, 



indicating recent trans-oceanic migration. 



3. Qnintinia (2 sp. ). This genus has winged seeds facilitating migration. 



4. Olearia (20 sp. ). Seeds with pappus. 



5. Craspedia (2 sp. ). Seeds with pappus. Alpine; identical with 



Australian species, and therefore of comparatively recent introduc- 

 tion. 



6. Celniisia (25 sp. ). Seeds with pappus. Only three Australian species, 



two of which are identical with New Zealand* forms, probably 

 therefore derived from New Zealand. 



7. Ozothamnus (5 sp. ). Seeds with pappus. 



8. Epacris (4 sp.). Minute seeds. Some species are sub-tropical, and 



they are all found in the northern (warmer) island of New Zealand. 



9. Archeria (2 sp.). Minute seeds. A species common to E. Australia 



and New Zealand. 



10. Logania (3 sp. ). Small seeds. Alpine plants. 



11. Hedycarya (1 sp.). 



12. Chiloglottis (1 sp.). Minute seeds. In Auckland Islands; alpine in 



Australia. 



13. Prasophyllum (1 sp.). Minute seeds. Identical with Australian 



species, indicating recent transmission. 



14. Orthoceras (1 sp. ). Minute seeds. Identical with an Australian 



species. 



15. Alepyrum (1 sp. ). Alpine, moss-like. An Antarctic type. 



16. Dichelachne (3 sp. ). Identical with Australian species. An awned 



grass. 



We thus see that there are special features in most of 

 these plants that would facilitate transmission across the 

 sea between temperate Australia and New Zealand, or to 

 both from some Antarctic island ; and the fact that in 

 several of them the species are absolutely identical shows 

 that such transmission has occurred in geologically recent 

 times. 



Species Common to New Zealand and Australia Mostly 

 TemjJerate Forms. — Let us now take the species which are 

 common to New Zealand and Australia, but found nowhere 

 else, and which must therefore have passed from one 

 country to the other at a more recent period than the mass 

 of genera with which we have hitherto been dealing. 

 These are ninety-six in number, and they present a striking 

 contrast to the similarly restricted genera in being wholly 

 temperate in character, the entire list presenting only a 



