III. MONANDILE-ACROTONiE 



5. THELYMITRA Forst. 



The genus Thelymitra is essentially Australian. More than half 

 of the forty-four species now known come from that country. 

 About twelve are natives of New Zealand. Only one species is 

 known to be a native of the Philippines. Thelymitra malintana 

 Blanco Fl. Fil. ed. 1, 642 is unknown to me. Naves referred it to 

 Habenaria trinervis Wight, a species that has never been au- 

 thentically reported from the Philippines. 

 1. Thelymitra javanica Bl. Bijdr. 419. 



Luzon. 



Also from Java. 



6. MICROTIS R. Br. 



A small genus of about twelve species, with the centres of dis- 

 tribution in Australia and New Zealand. 



1. Microtis unifolia Reichb. f. Beitr. Syst. PI. 62. Ophrys uni- 

 folia Forst. Prodr. Fl. Ins. Aust. 59 (1786). M. unifolia, as at pres- 

 ent understood, is a native of southern China, Japan, Formosa, 

 Liukiu Islands, Java, New Caledonia, Australia, and New Zea- 

 land. Undoubtedly studies of specimens from the wide range 

 indicated will result in the recognition of several species that are 

 now confused with M. unifolia. 

 Luzon. 



7. CORYBAS Salisb. 



There appears to be no valid reason for upholding the generic 

 name Corysanthes R. Br. It is antedated by Corybas, and, in ac- 

 cordance with the rules of nomenclature adopted by the Vienna 

 Botanical Congress, is not available. The description of Corybas 

 aconitiflorus in Salisbury's Paradisus Londinensis is accompanied 

 by a plate that leaves no room for doubt as to the generic char- 



[ 18] 



