498 Transactions. — Miscellaneous. 



tions of all the countries concerned, by the occurrence of so naany New 

 Zealand genera and species in Eastern Australia, and the absence from New 

 Zealand of so many characteristic Australian orders and genera. It wou.ld 

 be out of place here to go into these points minutely, because to do so would 

 involve a mere recapitulation of Mr. Wallace's able and conclusive argu- 

 ments, and I shall therefore confine myself only to a short examination of 

 the relations of our flora to that of Eastern and Western Australia respec- 

 tively. I have to apologize if I now descend into statistics, as the subject 

 can hardly be treated in any other manner. 



New Zealand possesses altogether 310 genera of flowering plants (303 

 A.E.W.), of which 248 (251 A.E.W.) are found in Australia, and of this 

 number 146 range into Western Australia. But of these, no less than 114 

 genera are more or less widely distributed outside the Australasian region, 

 leaving only 31 genera, peculiar to New Zealand and Australia, which range 

 into Western Australia. I append the names of these genera below,* but my 

 knowledge of the Australian flora is much too limited to enable me to say 

 how many of them have their head-quarters in Eastern or how many in 

 Western Australia. In this connection greater interest attaches to those 

 species which occur in both New Zealand and Western Australia. There are 

 altogether 215 New Zealand species (belonging to 134 genera) found in 

 Australia, many of them being antarctic or South American forms which 

 occur very sparingly on the mountains of Victoria and Tasmania. Of these 

 215 species, 106 (belonging to 79 genera) range into Western Australia, but 

 subtracting 68 species (52 genera) which have a very wide distribution, we find 

 that we have still 38 species of limited dispersion to consider. Of these 24 1 

 belong to genera whose head-quarters are outside of Australia, and their 

 spread into Western Australia is probably more recent than into New Zea- 



* New Zealand genera confined to New Zealand and Australia, which occur in 

 Western Australia: — 1, Pittosporum ; 2, Plagianthus ; 3, Phebalium; 4, Stackhousia ; 

 5, Pomaderris ; 6, Discaria ; 7, Swainsonia ; 8, Leptospermum ; 9, Actinotus ; 10, Olearia ; 

 11, Brachycome ; 12, Craspedia ; 13, Cassinia ; 14, Ozothamnus ; 15, Scaevola ; 16, Draco- 

 phyllum; 17, Logania ; 18, Persoonia ; 19, Pimelea ; 20, Poranthera ; 21, Prasophyllum; 



22, Pterostylis ; 23, Cyrtostylis ; 24, Caladenia ; 25, Arthropodium ; 26, Leptocarpus ; 27, 

 Calorophus; 28, Microlffina ; 29, Deyeuxia; 30, Echinopogon ; 31, Schadonorus. 



t 1, Eanunculus lappaceus ; 2, E. plebeius ; 3, E. rivularis ; 4, Claytonia austra- 

 lasica ; 5, Linum marginale ; 6, Pelargonium australe ; 7, Tillasa purpurata ; 8, Myrio- 

 phyllum variasfolium ; 9, M. pedunculatum ; 10, Epilobium glabelum ; 11, Caucus 

 brachiatus ; 12, Senecio lautus ; 13, Microseris forsteri ; 14, Sebcea ovata ; 15, Myosotis 

 australis ; 16, Mimulus repens ; 17, Salicornia australis ; 18, Carex inversa ; 19, Deyeuxia 

 forsteri; 20, D. quadriseta; 21, Danthonia semi-annularis ; 22. Schfedouorus littoralis ; 



23, Glyceria stricta; 24, Bromus arenarius. 



