ORCHIDACEiE 



50 meters altitude. Mindanao, Lake Lanao,Camp Keithley, Mary Strong 

 Clemens 54-6, May, 1906. 

 Also reported from India-Samoa. 



15. STEREOSANDRA Bl. 



A small genus containing two described species. Stereosandra 

 pendula Kranzl. in Schmidt Fl. Koh Chang is a native of Klong 

 Son. The following is the only representative of the genus in the 

 Philippines. 



1. Stereosandrajavanicai?/. Mus. Bot. Lugd. Bat. 2 : 176. This 

 species has also been reported from Java and Singapore. It is very- 

 rare, and difficult to find. 

 Mindanao, Luzon. 



16. DIDYMOPLEXIS Griff. 



This is a small genus of about eleven species, natives of Java, 

 New Guinea, Borneo, Formosa, New Caledonia, the Himalayas, 

 Malay Peninsula, Christmas Island, and Samoa. 



1 . Didymoplexis pallens Griff. Calcutt. Journ. Nat. Hist. 4 : 

 383, 1. 17. This species has been found in Formosa, Java, Perak, 

 Calcutta, and Sikkim. 



Luzon, under bamboos. 



2. Didymoplexis philippinensis sp. nov. Herba terrestris, gra- 

 cilis, usque ad 7 dm. alta, aphylla. Racemus multiflorus, 5-8 cm. 

 longus. Bractese inflorescentiae squamiformes. Pedicellus gracilis, 

 cum ovario usque ad 1.5 cm. longus. Flores circiter 5 mm. longi. 

 Sepalum intermedium oblongum, obtusum, cum petalis conna- 

 tum. Sepala lateralia in labium semi-2-fidum plus minus connata. 

 Labellum trilobatum, ad basim cuneatum, lobi laterales quam 

 lobus medius multo majores, vix 3 mm. longi, ad apicem circi- 

 ter 2 mm. lati, obtusi. Lobus medius triangulus, obtusus, 1 mm. 

 longus ; per medium labellum carina longitudinalis orta ; prope 



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