NEW OR NOTEWORTHY ORCHIDS 
acicularia, triquetra ut videtur. Pedunculi quam folia 
longiores, fdiformes. Racemi abbreviati, 2- ad 4-flori. Sepala 
carinata, intus superne pubescentia. Sepala lateralia alte 
connata, acuta. Sepalum dorsale lanceolatum. Petala multo 
minora, obliquissime oblanceolato-spatbulata. Labellum 
ligulatum, in basi biauriculatum, prope medium lobulis simili- 
bus retrorsis utrinque ornatum, in apice rotundatum. 
Plant very small, densely caespitose, about 4 cm. tall. 
Roots numerous, fibrous, flexuous, glabrous. Secondary 
stems very short, up to 5.6 mm. long, filiform, monophyllous, 
jointed at about the middle, mostly concealed by several 
tubular sheaths which are imbricating, scarious and evanes¬ 
cent. Leaves acicular, triquetrous in cross-section, about 
1.6-2.1 cm. long, minutely bilobed and apiculate at the tip, 
channeled through the middle of the upper surface, grad¬ 
ually narrowed below. Inflorescences solitary, somewhat 
surpassing the leaves. Peduncle filiform, up to 2.7 cm. 
long, with 2 remote minute tubular sheaths. Raceme ab¬ 
breviated, usually 2- to 4-flowered. Floral bracts minute, 
scarious, infundibuliform. Sepals 3-nerved, conspicuously 
pubescent within near the margins of the anterior portion, 
sharply carinate on the outer surface. Lateral sepals lan¬ 
ceolate, connate to a point beyond the middle or nearly to 
the apex into an elliptic lamina which is 5.1-6.1 mm. long, 
3-3.5 mm. wide in the middle, apices acute. Dorsal sepal 
lanceolate, 5-6 mm. long, about 1.6 mm. wide, acute, 3- 
nerved, concave. Petals much smaller, very obliquely spat- 
ulate-oblanceolate, about 2.2 mm. long and 1 mm. wide 
near the apex, sharply acute, 2-nerved. Labellum ligulate 
in outline, about 2.9 mm. long, up to 1 mm. wide near the 
apex, with a pair of short triangular retrorse auricles at base, 
a similar retrorse lobule on each side below the middle, an¬ 
terior third rounded or elliptic with broadly rounded apex 
and erose margins. Disc bicarinate near the middle, finely 
papillose on the inner surface. Column about 2 mm. high 
at the back, winged above, dentate on the upper margin. 
Pleurothallis acicularis is closely allied to P. vittariifolia 
Schltr., but it differs in having several flowers in a short 
22 
