into acuminate sheaths ; raceme subcorymbose 2-4flowered, 

 flowers amongst the smaller ones in the genus, erect or 

 ascending ; bracts erect lanceolate acuminate, a little longer 

 than the ovary ; lateral sepals ascending incurved concave, some- 

 what obliquely obovate obtuse, 0'7 cm. long ; odd sepal horizontal, 

 when flattened out by hand in outline transversely elliptical, a 

 little shorter than the lateral, Slobed, lateral lobes erect broadly 

 rounded, intermediate cucullate obtuse, incurved at the apex ; 

 petals horizontal fleshy, obovate in outline, truncate, lobed in 

 front at the apex, the lobe inflexed, 0*4 cm. long ; lip posticous 

 porrect linear obtuse, as long as the petals ; rostellum erect 

 Slobed, the gland-bearing lobes very short, intermediate concave 

 reflexed ; anther horizontal ; ovary straight — not twisted. 



Described from several dried and living specimens. Closely 

 allied to D. Richariiiana Lehviamiy but easily distinguished by the 

 Slobed odd sepal which is most unusual in the genus. 



