as if the upper half were cut away; a narrow line or furrow runs 
down on the upper side, from the base of this acumination to the 
sheaths. Zeeture harsh and rigid. Flowers lateral, solitary, ra- 
ther large, white. Sepals obovato-cuneate, tapering below, so as 
to be almost unguiculate, spreading very much, undulated and 
almost crisped. ‘Pefals also spreading horizontally, similar to 
the sepals, but broader, less undulated in the lamina, but with a 
more decided twist in the claw. Jip of a very remarkable 
form, equally white with the rest of the flower, and spotless. It 
is primarily three-lobed : the lateral lobes are large, conspicuous, 
having an erect position from a broad base, subulate, and in 
themselves two-lobed, bearing a lesser irregularly-toothed lobe or 
segment near the inner base: intermediate lobe curved down- 
wards, broadly obcordate, but suddenly tapering below into a 
broad claw, deeply two-lobed, each lobe almost orbicular, con- 
cave, crenulate: at the base the disc bears two elevated protu- 
berances or laminz, which are a little downy: the under side of 
the lip at the base is prolonged into a moderately large subulato- 
terete spur, greenish towards the apex: the tip red. Column 
short, destitute of wing or appendage, greenish, tinged with rose- 
colour. -Anther-case helmet-shaped. _Pollen-masses two, orbicu- 
lar, with a cleft on one side :—caudicle long, arising from a tri- 
angular gland. 
Fig. 1. Portion of leaf. 2. Lip and spur. 38. Column and anther. 4. 
Pollen-masses. 
