inclined, many- and dense-flowered, four to five inches long. 

 Flowers crowded, three-quarters of an inch to an inch dia- 

 meter ; pedicels and ovary slender, curved, ascending. Sepals 

 and petals equal, small, ovate, acute, white or dull purple, 

 with green tips ; lateral sepals connate. Lip broader than 

 long ; lateral lobes small ; middle very large, almost reniform, 

 membranous, glabrous, with smooth, entire edges, white, with 

 purple blotches and three small calli at the base. Column 

 short, white and purple. — J. D. H. 



Fig. 1. Column and lip. 2. Pollen ; both of Mr. Backhouse's specimen : — 

 magnified. 3. Flower of Mr. Buller's specimen:— of the natural size. 



