np:w ok noteworthy orchids 
lateralia triangularia, acuta, apice concluplicata, mentum 
extinctoriiforme elongatum formantia. Mentum ovario 
longius, antice medium usque clausum. Sepalum dorsale 
lanceolatum, valde concavum, petalis longius, acutum, 
breviter carinatum, apice breviter conduplicatum. Petala 
elliptico-lanceolata, acuminata, valde acuta, quinquenervia. 
Labellum simplex, a basi anguste cuneata mox dilatatum, 
triangulari-acuLum, infra apicem triangularem rotundatum, 
basi mento cohaerens. Discus ecarinatus. Columna ab- 
breviata, in pedem longum producta. Anthera minute 
glandulosa. 
Epiphytic herb, up to 15 cm. tall. Roots fibrous, 
spreading, white, smooth. Stems erect, about 5 mm. thick 
near the base in dried specimens, attenuated upwards, con¬ 
cealed below when young by ample acute nervose sheaths 
which soon break down into straggling fibres. Leaves more 
or less terminal, one to four on each stem, 3.5-10 cm. long, 
up to 7 mm. wide, alternate, about 2 cm. apart, linear- 
lanceolate, acute, narrowed at the base, shortly petioled, 
coriaceous, strongly recurved. Inflorescence terminal in the 
axil of the uppermost leaf, about 3 cm. long, few-flowered. 
Raceme much shorter than the subtending leaf, conspicuously 
bracteose, subtended by an infundibuliform bract which is 
8 mm. long. Rracts of the raceme up to 1.5 cm. long, ovate- 
lanceolate, heavily nerved, acute, with the apex shortly con- 
duplicate. Ovary long-pedicellate, dilated upward, con¬ 
spicuously 6-winged, including the pedicel 1.6 cm. long. 
Lateral sepals forming a mentum, — which is 1.3 cm. long and 
2.5 mm. in diameter, — 9 mm. long, 4 mm. wide near the base 
of the column, triangular, acute, with the apex shortly con- 
duplicate-carinate. Dorsal sepal 9 mm. long, lanceolate, 
acute, strongly concave, with the apex shortly carinate. 
Petals 7.5 mm. long, 3 mm. wide, elliptic-lanceolate or some¬ 
what rhombic-lanceolate, acute, somewhat thickened at the 
tip, minutely glandular on the margin and outer surface, 
5-nerved. Labellum about 1.5 cm. long to the point of at¬ 
tachment, 2 mm. wide near the base, 5 mm. wide near the 
tip, gradually widened upward from a narrowly cuneate 
base, rounded near the tip, where it is abruptly narrowed into 
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