means so small as in our O. tridifolia (Tab. 4517). Bracteas — 
oblong-acute, serrated at the apex. Sepals and petals uniform, _ 3 
ovate, fimbriato-ciliate, singularly reflexed, so as to be on the | 
same plane with the labellum, with an exactly opposite direc- 
tion, and at the same time slightly spirally twisted. Zip sub-— 
quadrangular, obtusely four-lobed, or, in other words, three- 
lobed; middle lobe much the largest and broadest, and itself 
two-lobed ; all obtuse, and all fimbriato-ciliate; and the same 
soft hairs of the margin extend to the surface of the lip: the 
disc is channelled. Colwmn very short. Anther-case hemisphe- 
rical. Pollen-masses two. 
by 
= 
i 
2 
t 
Fig. 1. Bractea. 2, 3. Flowers. 4. Pollen-masses :—magnified. 
