670 CXLVIII. ORCHIDEJ:. (J. D. Hooker.) \_Epidendrea. 



18. CnEYSoaLOSsuM. Scape tall, raceme long. Mentum saccate. Lip not 

 jointed on the column. Anther 2-celled. Pollinia 2, not connected. Leaf 

 plaited. 



Subtribe 3. EEIEJE. 



19. ERIA. Peduncles 1-many-fld., axillary or subterminal on a leafy stem or on 

 a pseudobulb. Column short , produced into a foot. Habit very various. 



20. PHBEATIA. Peduncle lateral or from a leafless rootstock, flowers minute. 

 Column very short, produced into a foot. Stem short, leaves distichous. 



21. PACHYSTOMA. Scape leafless. Sepals conniving. Column elongate, pro- 

 duced into a foot. Capsule deflexed. Pseudobulb 1-2-leaved. 



22. SPATHOGLOTTIS. Scape distinct from the 1-2-leaved pseudobulb. Sepals 

 spreading. Column elongate, foot 0. Capsule erect or nodding. Leaves elongate, 

 plicate. 



Subtribe 



23. ACANTHEPHIPPIUM. Sepals connate into a broad fleshy cup. Petals 

 included, adnate to the base of the short column, which is prolonged into a long 

 foot. Flower large in short few-fid, racemes. 



24. PHAIUS. Flowers large, racemose. Sepals free. Lip gibbous or spurred,' 

 lateral lobes embracing the long column, which is not prolonged into a foot. Leaves 

 often large, plaited. 



25. NEPHELAPHYLLTJM. Flowers racemose on a leafless scape. Sepals free. Lip 

 spurred. Column 2- winged, foot 0. Pseudobulb very narrowed above and jointed 

 with the membranous leaf. 



26. TAINIA. Flowers racemose on a leafless scape. Sepals and petals acute, 

 caudate; lateral sepals inserted on the short foot of.the column. Lip spurred or 

 gibbous. Pseudobulbs thick, 1 -leaved. 



27. ANTHOGONIUM. Fiowers racemose on a leafless scape. Sepals connate in a 

 slender tube. Petals linear, claws free within the sepals. Column elongate, foot 0. 

 Pollinia 4 (upper series wanting). Leaves few, grass-like, from a pseudobulb. 



Subtribe 5. CCELOGYNE.E. 



* 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 voith the foot 

 of the column. 



29. GLOMEEA. Stem leafy. Flowers in a dense head. Pollinia 4. 



30. AGEOSTOPHYLLUM. 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. CRYPTOCHILTJS. Pseudobulbs 1-2-leaved. Sepals connate in a 3-toothed 

 tube. Clinaudrum very broad ; pollinia 8. 



33. TRICUOSMA. Stem not thickened, 2 -leaved. Sepals spreading. Clinandrium 

 elevated, toothed ; pollinia 8. Flowers large. 



#*** Flowers solitary, spicate or racemose. Sepals free. Column with- 

 out afoot. 



34. CGELOGYNE. Pseudobulbs distinct, 2-leaved. Lip sessile, its base embracing 

 the elongate column. Pollinia 4. Flowers racemose, often large. 



