Coelogyneae .

Pseudobulb 0. Peduncle elongate , branched. Flowers small .

28. JOSEPHA. Lateral sepals forming a mentum . Column narrowly winged , foot 0 . Pollinia 4.

** Flowers capitate. Lateral sepals forming a mentum with the foot of the column.

29. GLOMERA. Stem leafy. Flowers in a dense head . Pollinia 8 .

31 . CERATOSTYLIS . Flowers in a lax head , which is adnate to the solitary leaf. Column with 2 long arms. Pollinia 8.

*** Flowers spicate or racemose . Lateral sepals united in a mentum.

32. CRYPTOCHILUS . Pseudobulbs 1-2 leaved . Sepals connate in a 3-toothed tube. Clinaudrum very broad ; pollinia 8.

33. TRICHOSMA . Stem not thickened , 2 –leaved . Sepals spreading . Clinandrium elevated , toothed ; pollinia 8 . Flowers large.

**** Flowers solitary , spicate or racemose. Sepals free, Column without a foot.

34. COELOGYNE . Pseudobulbs distinct , 2-leaved . Lip sessile , its base embracing the elongate column. Pollinia 4 . Flowers racemose , often large.

35. OTOCHILUS . Pseudobulbs superposed , uppermost 2-leaved. Lip sessile , base saccate , lateral lobes ear-like. Column elongate; pollinia 4. Peduncle terminal , sheathed.

36. PHOLIDOTA. Pseudobulbs 2-leaved , solitary or superposed . Lip saccate . Column short , broadly 2-winged ; pollinia 4, Peduncle sheathed .

37. CALANTHE . Terrestrial herbs . Leaves plicate ,produced after the racemose flowers. Lip usually spurred , claw connate into a tube with the column .

38. ARUNDIANA. Terrestrial herbs ; stem leafy . Sepals spreading . Lip sessile , not spurred , base concave embracing the column.