tirely concealed by sheaths, up to 20 em. long. Cauline 
sheaths numerous, tubular-cylindric, close, glabrous or 
obscurely fine-hispid along the longitudinal nerves, ter- 
minating in loose infundibuliform mouths which are long- 
acuminate, marginate and prominently hispid-ciliate. 
Leaf elliptic to oblong-ovate, rather abruptly acuminate 
with a minutely tridentate apex, broadly cuneate below, 
up to 10.5 em. long and 8 cm. wide, chartaceous, mar- 
ginate, many-nerved with three more conspicuous ones; 
petiole short, channelled, up to 1 em. long. Inflorescen- 
ces one or two, much shorter than the leaf, arcuate, up 
to 8.5 cm. long, few- to many-flowered, densely flowered 
above but very loose below, filiform, with a fractiflex 
rachis. Flower membranaceous. Sepals glabrous. Dorsal 
sepal ovate, abruptly caudate-acuminate, 3-nerved (the 
nerves being dorsally carinate with minutely denticulate 
keels), about 7 mm. long and 4.8 mm. wide near the 
base. Lateral sepals very obliquely ovate, abruptly cau- 
date-acuminate, connate for about one third of their 
length, about 7.4 mm. long and 6.2 mm. wide across 
the connate portion, 2-nerved with the nerves dorsally 
carinate. Petals much smaller than the sepals, transverse, 
horizontal, bilobed, minutely cellular-pubescent, about 
1.5 mm. long in the middle and 4.5 mm. wide; posterior 
lobule obliquely obovate-quadrate, separated from the 
anterior lobule by a blunt apicule; anterior lobule ob- 
liquely triangular-lanceolate, lightly incurved, obtuse, 
little shorter but much narrower than the posterior lob- 
ule. Lip adnate to the middle of the column, 3-lobed; 
lateral lobes peltate from a short broad subquadrate claw, 
with the apical portion transversely oblong-elliptic and 
about 2.5 mm. broad; mid-lobe minute, subquadrate in 
outline, sharply bidentate. Column about 2 mm. long, 
slightly arcuate. 
Lepanthes caudatisepala appears to be most nearly al- 
[ 124 ] 
