with the ovaries 0*B-0"9 cm. long- ; lateral sepals spreading- oblong- 

 oblanceolate subacute 0-6 cm. long-, 0-22 cm. wide in the broader 

 part ; odd sepal erect oblong- obtuse somewhat concave, provided 

 at the base on each side of the margin with a tooth, 0*6 cm. long-, 

 0*45 cm. wide ; petals erect-spreading obliquely ovate somewhat 

 acute, a little shorter than the sepals, 0*32 cm. wide ; limb of the 

 lip ovate obtuse concave recurved at the apex, as long- as the 

 petals ; spur inflated at the base, then cylindrical, incurved 2 cm. 

 long- ; column incurved oblong or somewhat rhomboidal dilated 

 below the middle ; rostellum without bearded appendages, pol- 

 linia lenticular attached by filiform caudicles to the ovate glands. 



Described from fresh specimens; flowers white. In the general 

 appearance of the flowers this resembles M. gracile Harv. ; but 

 the shape of the perianth segments and the nude rostellum shew it 

 to be quite distinct. 



