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or slightly compressed, smooth, monophyllous, sheathed at the 
base with three or four large faintly striated membranaceous 
scales. Leaf oblong-lanceolate, six to eight inches long, acute, 
smooth, veinless, rather fleshy and opaque. Peduncle arising 
from the base of the pseudobulb, pendent, about a foot long, 
including the flowers: these are large, handsome, four or more 
in a bracteated raceme. Bracteas ovato-oblong, acute, wither- 
ing. Pedicels two inches long, but* gradually passing into the 
club-shaped, three-furrowed ovary. Sepals and petals nearly 
uniform, long (two and a half to three inches), very much 
spreading, linear-lanceolate, acuminate, slightly twisted. Lip 
very large, the lower part of the claw united to the column; the 
rest involute, so as to enclose the column: from the claw the 
limb suddenly expands so as to be very large, almost orbicular, 
obscurely three-lobed, pure white, with an orange spot at. its 
base on the disc. Column terete and club-shaped. Clinandrium 
with two rounded entire ears in front, at the back three-lobed 
and fimbriated. Anther-case operculiform. — Pollen-masses two, 
with a caudicle and linear gland. ay 
a i 
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Fig. 1. Column. 2. Pollen-masses :—magnified. 
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