to 4 mm. long. Inflorescences one to four, arising from 
the stem a little below the terminal leaf, several times 
longer than the leaf; peduncle up to the raceme filiform, 
3.5-4.5 em. long, provided below the middle with an in- 
conspicuous close tubular sheath. Raceme loose, flexuous 
or diffuse, 6- to 19-flowered; rachis strongly fractiflex. 
Pedicels long, arcuate, 11 mm. or less long. Flowers 
membranaceous. Lateral sepals connate forming an ellip- 
tical concave lamina which is minutely emarginate at the 
apex, about 5 mm. long and 8 mm. wide, 6-nerved, 
making with the column-foot a small mentum. Dorsal 
sepal similar, ovate-elliptic, strongly concave, about 5 
mm. long and 2.6 mm. wide, subacute or obtuse at the 
apex, 8-nerved. Petals broadly spatulate, about 2.5 mm. 
Jong and 1.5 mm. broad, 1-nerved, abruptly acute or apic- 
ulate, with a dilated base, somewhat asymmetric, with 
scattered indistinct papillae near the apex. Lip ovate in 
outline, about 8 mm. long and 2 mm. wide when ex- 
panded; lower portion (almost a third) oblong, minutely 
auriculate at base, rather abruptly dilated into a sagittate 
lamina with a minute sharp decurved lobule on each side; 
the anterior portion is very fleshy and subglobose-thick- 
ened. Column slender, about 2.1 mm. long, terminating 
in a tridentate membranaceous wing. 
Another collection, (#m Thurn 172) contains a plant 
about 6 em. high with stems 5mm. or more long, leaves 
2 em. long and 7 mm. wide (immature leaves are much 
smaller) and peduncle about 8.1 cm. long. It has the 
lamina of the lateral sepals about 6 mm. long and 8.2 
mm. wide, distinctly bidentate at the apex; dorsal sepal 
about 5.5 mm. long. 8 mm. wide, rounded at the apex; 
petals 2.8 mm. long, 1.8mm. wide. Another collection, 
(im Thurn 116) has spatulate-oblanceolate leaves; dorsal 
sepal about 6mm. long; petals 2.5 mm. long and about 
2mm. wide. 
[81] 
