ORCHIDACEJE 



About eighty species of Ceratostylis have been described. C. 

 subulata Bl. is the only representative of the genus in the Phil- 

 ippines which has an extra-limital range. This species has been 

 reported from Borneo, Sumatra, Java, Malay Peninsula, Assam, 

 Khasia, and Sikkim. 



1. Ceratostylis latipetala Ames in Phil. Journ. Sci. 4 : 671. 

 Luzon, Mindanao. 



2. Ceratostylis philippinensis Rolfe ex Ames in Ames Orchi- 

 dace,e 1 : 79. 



Luzon. 



3. Ceratostylis ramosa Ames § Rolfe in Ames Orchidace^e 

 2 : 149. 



Luzon, Mindanao. 



4. Ceratostylis (§Caulescentes) retisquama Reichb.f. in Bonpl. 

 5 : 53, "Vaginis valide retinerviis, folio carnosissimo lanceolato, 

 apice insequali bilobo, perula obtusa parva, sepalis ligulatis, te- 

 palis linearibus acutis, labelli lamina ab ungue abrupte oblonga 

 apice contracta, carinis semilunatis geminis, brachiis gynostemii 

 retusis. Cuming 2152!" 



The only caulescent species from the Philippines with lance- 

 olate leaves is Ceratostylis ramosa Ames & Rolfe. C. latipetala 

 Ames and C. rubra Ames have fleshy linear or narrowly oblong 

 leaves, which in dried specimens have a semiterete aspect. 



5. Ceratostylis rubra Ames in Phil. Journ. Sci. 4 : 670. 

 Luzon, Mindanao. 



6. Ceratostylis senilis Reichb.f. in Otia bot. Hamb. 54. 

 Luzon. 



7. Ceratostylis subulata Bl. Bijdr. 306. 



Luzon, Mindanao, Mindoro. 



Also Java, Borneo, Sumatra, Malay Peninsula, Assam, Khasia, Sikkim. 

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