by asinglc leaf, frcli leap i* abont fi»ir inches long* ovaManccohtc, flat, shining, ftrm, imtdy 

 doable-toothcd nt the point, and at die bate contracted into a short channelled petiole. The «capbs 

 sgmiifr from (he base oflho pseudo-bulbs, and are very slender, erect, rigid. brOWnUh green, hardly 

 thicker than a piece oftwinc, and clothed with a few long narrow sheathing scales. These arc termi- 

 nated by distichous spikes, which aredrooping, and about «* inches long. The plowed ire exactly 

 alternate in u distichous manner, yellowish purple, nearly parallel with the flattened rachis which i* 

 half surrounded l>elow each flower by n single OTUCT, dry. ovate, concave, acuminate, striated, and 

 sometimes expanded into an ovale obtuse lobe on each side- The flowers are two-lipped, much 

 shorter than the bracts, and partially hidden by them. The skimls are ovate, obtuse, slightly tinged 

 with pink ; the lateral ones the largest, nnd placed next the rachis. at the hack of the Labcllum. The 

 PETALS are roundish-ovate, white, very obtuse, thrice a* short as the sepals. The labellum is fleshy, 

 tingeil with pink, tongue -shaped, blunt, mnelt shorter than the sepals, and a little dilated near the 

 base where the margin* stand erect, producing something the appearance ofn shoe. The column is 

 very short, not at all extended at the base into n fool, hut quite continuous with the Ovary ; in front it 

 is hollowed out into n stigma, and at the summit it hears the anther. 



It is from the very unusual structure of the anther that the genus derives its principal distill* 

 gtrishing feature* Instead of being loose in the anthcr-bcd, hinged by its back, and opening along it* 

 under side so as to allow the pollen-masses to drop out upon the anther-bed, it is so fastened down by 

 it* face that the latter operation become* impossible, and in order to provide for the escape of the 

 pollen, the cells open vertically, so that when their sides are drawn asunder the pollen-masses are at 

 once seen reposing in their places. The i*ollks-massks themselves arc four adhering in two pairs, and 

 according to memoranda made by me twenty years ago t for I have not seen them since, they are 

 attached to two caudicuhe, die nature of whose connection with the stigma is not yet known. 



In tig. 8. the left-hand figure represents a side view of a (lower much magnified ; while the right 

 >* u front view shewing the position of the pollciwnasscs aud anthers when undisturbed. 



