the female it is very short and stout, with a pair of 
triangular fleshy wings at the sides of the stigma. The 
lip in the female is a large, ovate, fleshy body, but in 
the male it is reduced to a small circular disk, surrounded by 
a number of clavate marginal appendages. The sepals and 
petals are membranous in the males, and very fleshy in the 
females; the differences in size and colour are well shown 
in the figure. These, differences do not extend equally to 
every species in the genus, nor were they known to be 
differences of sex until comparatively recently, as may be 
seen by the account given at plate 4054 of this work. The 
history of the genus has been reviewed by Mr. Rolfe ina 
recent paper in the Kew Bulletin for 1909 (pp. 268-277). 
Descriprion.—Herb, with erect terete pseudobulbs about 
6 in. high, clothed with membranous scales. Leaves oblong- 
lanceolate, acute or acuminate, recurved, somewhat undulate, 
about 5-7 in. long, 1-1} in. wide. Flowers monoecious. 
Male racemes pendulous, many: and dense-flowered, about 
14 in. long; bracts lanceolate, acuminate, membranous, 
about 4 in. long; pedicels slender, about 2 in. long. Sepals 
and petals of male flowers membranous, oblong-lanceolate, 
subacute, Tecurved, greenish with purple blotches, 3-1 in. 
long. Lip of male flowers clawed, about 3 in. long; the 
lamina cochleate, long acuminate, its margin beset with a 
fringe of clavate or capitate processes. Column of male 
flowers slender, incurved, 1 in, long. Female racemes short, 
suberect, 2-flowered, about 2 in. long; bracts oblong- 
lanceolate, acute, about 2 in. long; pedicels stout, curved, 
about 1} in. long. Sepals and petals of female flowers 
almost fleshy, spreading, oblong, acute, green, 14-1} in. 
long. Lip of female flowers clawed, ovate, acute, entire, 
thick and fleshy, ivory-white, 1} in. long, 3 in. wide, with a 
transverse basal callus. Column of female flowers thick, 
clavate, incurved, about in. long. 
Fig. 1, a kaf; 2, a male inflorescence ; 3, a female flower; 4, lip of male 
flower ; 5, column of male flower ; 6 : : ] 
size, 4 and 5 enlarged, 6 much reduced, Sea Ot ah aati giagts—1-P of acturs 
