330 



28. Anoectochilus, Bl. New Caledonia (2), Fiji (1). Total 3, endemic. 



29. Zcuxine, Lindl. New Caledonia (2), Samoa (4), Marianne Islands 



(1), unspecified (2). Total 9, endemic. 



30. Cheirostylis, Bl. Unrepresented. 



31. Goody era, R. Br. New Caledonia (2), Samoa (1), New Hebrides (1), 



Tahiti (1). Total 5, endemic. 



32. Hetaeria, Bl. Samoa (3), Fiji (3), Society (1). Total 7, endemic. 

 ZZ. Cryptostylis, R. Br. New Caledonia (1), Samoa (1), Fiji (1). Total 3, 



endemic. 



34. Corysanthes, R. Br. New Caledonia (1), Samoa (1), Hebrides (2), 



New Zealand (8), unspecified (1). Total 13, of which 12 are endemic, 

 and 1 (C. Cheesemanii, Hook, f.) from New Zealand is conspecific 

 with a species (C. hicalcarata, Br.) in Australia. 



35. Nervilia; Comni. New Caledonia (1), Samoa (1), Marianne Islands 



(1). Total 3, endemic. 



36. Didymoplex\s, jGrifif. New Caledonia (1), Samoa (1). Total 2, 



endemic. 

 Z7. Gastrodia, R. Br. New Zealand 3, of which 2 are endemic and 1 (G. 

 sesamoides, R. Br.) is common to New Zealand and Australia. 



38. Epipogum, Gmel. Unrepresented. 



39. Hahenaria, Willd. New Caledonia (2), Fiji (2), Samoa (4), Society 



(2). Total 10, endemic. 



40. Dipodium, R. Br. New Caledonia (1), Hebrides (1). Total 2, endemic 



41. Apostasia, Bl. Unrepresented. 



Of all our exotic genera, Dendrobium aand Bulbophyllum are probably the 

 most interesting, having a vast developing centre and distributing depot in New 

 Guinea, adapting themselves to great extremes of climate, and extending in their 

 range from 37° of latitude north to well below 47th parallel of latitude south 

 (Stewart Island). 



To Australians, particular interest will centre round another genus, Cory- 

 santhes, R. Br., which we have hitherto considered a true Australian type. Until 

 recently, it was known to the botanical world by less than a dozen species scat- 

 tered over our Commonwealth and New Zealand, together with four presumable 

 emigrants resident in Java. To-day we must readjust our views. Close on 

 50 species are now known, with apparently a propagating centre in New Guinea 

 from which station 21 species have already been described. It has also been 

 reported from the Himalayas, from several islands in the Malay Archipelago, 

 from the Celebes, the Philippines, and three from the South Sea Islands. The range 

 of these delicate little plants is thus seen to be great, extending from a little 

 below the Tropic of Cancer to Stewart Island (New Zealand), situated about 

 the 47th parallel of south latitude. Of the 8 species which are natives of New 

 Zealand, only one is conspecific with a species in Australia. A characteristic 

 feature of the endemic species of the Dominion is to be found in the long filiform 

 lateral sepals and petals. This is not present in any known Australian species, 

 but is seen in two of the Javanese species, and also in some of those recorded by 

 Schlechter, J. J. Smith, and Ridley, from New Guinea. It is curious that the 

 development of this genus should be greater within the narrow confines of New 

 Zealand than on our own continent. 



Another exotic of more than passing interest to our botanists is Cryptostylis,. 

 R. Br. It is distributed from Ceylon, through the Malay Archipelago to New 

 Guinea, where it reaches its maximum development. Hayata^^^^ reports a species- 



(11) "Icones. Plant. Formosan.," iv. (1914), 117. 



