obtectus; racemus dense multiflorus. Flores parvi. Se- 
palum dorsale oblanceolatum, acutum. Sepala lateralia 
oblique oblongo-oblanceolata, acuta vel breviter acumi- 
nata. Petala oblanceolato-linearia, leviter incurva, acuta 
vel breviter acuminata. Labellum columnae valde ad- 
natum; lamina trilobata, carnosa; lobi laterales rotun- 
dato-dolabriformes, extus irregulariter crenulati; lobus 
medius ovatus, acutus. Columna generis, recta. 
Plant medium-sized for the genus, stout, epiphytic, 
up to 87 cm. tall. Roots and rhizome not present. Stem 
apparently stout, entirely concealed by strongly compla- 
nate tubular leaf-sheaths. Leaves five, loosely disti- 
chous, ovate or oblong-ovate, rounded and minutely bi- 
lobed at the apex, amplexicaul at the broad base, about 
5-7.5 em. long, 2.8-3.4 cm. wide, spreading. Inflores- 
cence erect, racemose above; peduncle apparently about 
11 em. long, entirely concealed by two or three strictly 
erect, conduplicate, imbricating spathes which are 
rounded to acute above ; raceme densely many-flowered ; 
floral bracts lax, linear-lanceolate, the lower ones about 
equaling the slender pedicellate ovary. Flowers small, 
pale brownish green flushed with purple, spreading. 
Dorsal sepal oblanceolate or elliptic-oblanceolate, acute, 
5-nerved, about 9-10 mm. long and 3-3.4 mm. wide 
above. Lateral sepals obliquely oblong-oblanceolate, 
lightly sigmoid, acute or short-acuminate, longitudinally 
concave, 5-nerved, about 10.3-11 mm. long on the pos- 
terior margin and 38-3.3 mm. wide just above the middle. 
Petals oblanceolate-linear, lightly incurved, acute or 
short-acuminate, l-nerved, about as long as the dorsal 
sepal and 1 mm. wide above. Lip adnate to the column 
up to its apex; lamina sharply 3-lobed, fleshy, cordate 
at the base, about 5-5.8 mm. long in the center and 
6.4-7.7 mm. wide across the lateral lobes; lateral lobes 
rounded-dolabriform, with irregularly crenate outer mar- 
[ 59 | 
