close partially at night, and open again in the morning,” 
which has not been noticed in any other species of 
Bulbophyllum. 
The other known species of the group are B. Pahudia, 
Reichb. f. (Fl. des Serres, t. 2268), B. Binnendijhii, J. J. 
Smith, both natives of Java; B. virescens, J. J. Smith 
(Ic. Bogor. vol. ii. t. 119, fig. A.), a native of Amboina, 
and B. maximum, Ridl., from Malacca. Of these only 
B. virescens is known to be in cultivation. It has light 
green, unspotted flowers, of about the same size as those 
of B. Hricssoni. 
Descr.—An epiphytic herb, about a foot and a half high, 
with a stout, creeping rhizome. Pseudobulbs distant, 
linear-oblong, about three and a half inches long, with 
large, membranous sheaths at the base, one-leaved. Leaves 
petioled, elliptic-oblong, obtuse, subcoriaceous, five to six 
inches long by two to two and a quarter inches broad. 
Scapes suberect, about six to seven inches high, with a 
few spathaceous sheaths below, somewhat decurved near the 
apex. Flowers umbellate, large, green, spotted with 
purple-brown, and with some red-brown markings in front. 
Bracts ovate-lanceolate, acuminate, half to three-quarters 
of an inch long. Pedicels half an inch or more long. 
Dorsal sepal broadly lanceolate, acuminate, two and three- 
quarters to three inches long, ahout half an inch broad, 
often spiraliy curved at the apex; lateral sepals triangular 
at the base, with a long, caudate, spirally curved apex, as 
long as the dorsal sepal, by about half an inch broad at 
the base. Petals narrowly triangular at the base, caudate- 
attenuate above, and often somewhat twisted, an inch and 
a half long, by a third of an inch broad at the base. Lip 
triangular from a broadly cordate base, somewhat com- 
pressed laterally, and with an acute, strongly recurved 
apex, over half an inch long. Oolwmn very broad, about 
a quarter of an inch long; base attenuated into a narrow 
foot, about three-quarters of an inch long ; teeth oblong, 
obtuse.—R. A, Roure. 
Fig. 1, flower from which the sepals and petals have been removed; 
2, column attached to pedicel; 3, lip; 4, petal; 5, anther; 6 und 7, pollinia 
seen from front and side ;—all enlarged, 
