134 



OrchidecB. 



9- 



10. 



13- 



14- 



15- 

 1 6. 



Lateral sep. much exceeding the 



dorsal 



Column not prolonged into a foot. 

 Lip embracing the column . 

 Lip not embracing the column. 

 Column long .... 

 Column very short 



Pollinia 2 



Pollinia 8. 



Column prolonged into a foot. 

 Sep. connate .... 



Sep. free. 

 Epiphytes. 



Column without appendages . 

 Column with 2 frontal appen- 

 dages .... 

 Terrestrial .... 



Column not prolonged into a foot 

 (or very shortly in Phajus). 

 L. distichous, not plaited. 



Fl. large 



Fl. very small .... 

 L. not distichous, plaited. 

 Lip not spurred 

 Lip spurred. 



Lip inserted on the base of 



the column 

 Lip inserted high up on the 

 column .... 

 Pollinia 2 or 4 (8 in Octarrhena) attached 

 singly or in pairs by straps or caudicles 

 to a distinct viscid gland. 

 Anth. terminal on the column, or facing 

 the lip. 

 Stem pseudobulbous or tuberous at the 

 base. 

 Pollinia 2. 

 Terrestrial. 



Lip inferior .... 

 Lip superior .... 



Epiphytic 



Pollinia 4. 



Lip inferior ..... 

 Lip superior ..... 

 Stem not pseudobulbous or tuberous. 

 Column prolonged into a foot. 

 Lip truncate, mid lobe minute 

 Lip with an elongate mid lobe. 



Spursaccate, laterally compressed 26. 

 Spur conical. 



Lip with a forked appendage 27. 

 Lip with no forked appendage 28. 

 Column not prolonged into a foot. 

 Pollinia 2, on a single strap with 

 one gland. 



CiRRHOPETALUM. 



coelogyne. 



Adrorhizon. 



Pholidota. 



Chrysoglossum. 



II. ACANTHOPHIPPIUM. 



12. ErIA. 



Alvisia. 

 Tain LA. 



Arundina. 

 Agrostophyllum. 



17. IPSEA. 



19- 



Phajus. 

 Calanthe. 



20. 



21. 

 22. 



23- 

 24. 



25. 



Eulophia. 



Geodorum. 



Cymbidium. 



Josephia. 

 Polvstachya. 



Sarcochilus. 

 Rhynchostylis. 



DORITIS. 



Aerides. 



