four- to six-flowered; rachis inclined, stout, green, terete. 

 Bracts minute, green, broadly triangular-ovate. Ovary gibbous, 

 pedicelled. Sepals an inch and three-quarters long, spreading, 

 linear-lanceolate, acuminate, quite entire, and. as well as the 

 equally long but narrower petals, of a pale citron-green colour. 

 Lip sessile on the apex of the column, orbicular-cordate, an 

 inch and a quarterto an inch and a half in diameter, ivory- 

 white, slightly concave, subacute, quite entire, smooth, with 

 two small yellow calli at its base. Column stout, truncate 

 and five-toothed in fruit, white like the lip. — J. I). II 



Fig. 1. Ovary and column. 2 and 3. Pollinia : — magnified. 





