about 8.7mm. or less long, 1-jointed, entirely concealed 
by two imbricating tubular searious sheaths. Leaf nar- 
rowly linear or oblanceolate-linear, very coriaceous, deeply 
longitudinally suleate above and carinate beneath in the 
dried specimen, in fresh material probably fleshy, acute 
or minutely tridenticulate at the apex, narrowed to a 
more or less distinct sulecate petiole, up to 2.2 cm. long 
and 1.7 mm. wide when expanded. Inflorescences slen- 
der, 1-flowered, in anthesis slightly surpassing the leaves, 
minutely puberulent. Pedicel conspicuously exserted be- 
yond the infundibuliform puberulent sheath. Lateral 
sepals connate forming an elliptic-ovate lamina which is 
sharply bidentate about to the middle, about 4.1 mm. 
long and 2.2 mm. wide across the middle, prominently 
2-nerved with an indistinct nerve on each side. Dorsal 
sepal lanceolate, 4 mm. long, 1.8 mm wide, acute, con- 
‘save, 8-nerved. Petals very asymmetrically oblong-spat- 
ulate, about 2.7 mm. long and 1 mm. wide near the apex, 
obliquely and abruptly acute, I-nerved. Lip sagittate- 
oblong, with sharp-triangular spreading angles Just below 
the middle, 8 mm. long, about 1.4 mm. wide across the 
lateral angles, rounded at the apex, I-nerved throughout 
or 8-nerved to the middle, finely papillose on the upper 
surface. Column stout, about 2 mm. long on the dorsal 
surface, narrowly winged on each side. Ovary slenderly 
turbinate, muricate. 
A sheet inthe Kew Herbarium consists of apparently 
different collections of this species, but they all are desig- 
nated asim Thurn 84. Some plants of this number show 
flat leaves, others 2-flowered scapes, and one flower (sepa- 
rate) has the lamina of the lateral sepals about 2.3 mm. 
wide and distinctly 4-nerved, and also has petals which 
are 2-nerved and are somewhat broader below than in the 
type. Another collection (Jenman 1996) shows a simi- 
larly 4-nerved lamina of the lateral sepals and 2-nerved 
[ 84 ] 
