SECTION Intervallatae Ridley 1897

LECTOTYPE SPECIES: Bulbophyllum tardeflorens Ridl. 1896(= B. attenuatum Rolfe 1896)

Synonyms sect. Hymenobractea; sect. Dialeipanthe Schlechter 1913

Characterized by hardly visible to not very well developed pseudobulbs giving rise to short to long, wiry inflorescence with successive racemes at the apex. The lip is rather flat and quite smooth and the stelida of the column are short or reduced to small teeth

1. Bulbophyllum aemulum Schltr. 1905 Papua New Guinea

2. Bulbophyllum andreeae A.D.Hawkes 1956 New Guinea

3. !Bulbophyllum attenuatum Rolfe 1896 Borneo

4. Bulbophyllum caloglossum Schltr. 1913 Papua and New Guinea

5. Bulbophyllum cleistogamum Ridl. 1895 Pennisular Malaysia, Borneo and the Luzon province of the Philippines

6. Bulbophyllum digoelense J.J. Sm. 1911 Papua and New Guinea

7. Bulbophyllum garupinum Schltr. Papua and New Guinea

8. Bulbophyllum hamadryas Schltr. 1913 New Guinea

9. Bulbophyllum infundibuliforme J.J. Sm. 1830-4 Amboin Island and New Guinea

10. Bulbophyllum longiscapum Rolfe 1896 Papua New Guinea, the Solomon Islands to Tonga, Fiji, Vanuatu and Samoa

11. Bulbophyllum lumbriciforme J.J.Sm. 1920 Sumatra and Malaysia

12. Bulbophyllum macrochilum Rolfe 1896 Malaysia, Singapore and Borneo

13. Bulbophyllum mandibulare Rchb.f. 1882 Sabah, Borneo

14. Bulbophyllum papilio J.J.Sm. 1910 New Guinea

15. Bulbophyllum salebrosum J.J.Smith 1927 Sumatra

16. Bulbophyllum scrobiculilabre J.J.Sm.1914 Papua and New Guinea

17. Bulbophyllum septemtrionale J.J. Sm. 1913 Papua and New Guinea

18. Bulbophyllum serra Schltr. 1913 Papua and New Guinea

19. Bulbophyllum sp. New Guinea

20. Bulbophyllum sp.

21. Bulbophyllum sp.

22. Bulbophyllum sp Philippines?

23. !Bulbophyllum tardeflorens Ridley May 1896 Borneo

    References W3 Tropicos, Kew Monocot list , IPNI ; *Thirty Two New Species of Bulbophyllum (Orchidaceae)from Sulawesi J.J. VERMEULEN 1 AND P. O’BYRNE Gard. Bulletin Singapore 60 (1): 73-153 2008