decurvata, falcata, lineari-oblanceolata. Petala sepalo 
dorsali valde adnata, oblanceolato-linearia, acuta. Label- 
lum apice trilobatum cum lobo medio reflexo, extensum 
lineari-spathulatum, basi auriculata dilatata; lobus medi- 
us rotundato-ovatus; discus maxima pro parte pubescens. 
Columna gracilis. 
Plant terrestrial, up to about 5 dm. high. Roots fas- 
ciculate, tuberous, stout, lanuginose. Leaves seven, basal, 
rosulate, petioled; blade ovate-elliptic, up to about 8 em. 
long and 8.6 cm. wide, sharply acute, broadly cuneate 
at base, with about five prominent nerves beneath; pet- 
ioles rather slender, channelled, slightly dilated at the 
imbricating base, up to about 6 cm. long. Scape glabrous 
below, densely pilose to lanuginose above, provided with 
about six long-acuminate basally amplexicaul sheaths 
which are strict and up to 5.5 em. long. Inflorescence 
racemose, rather laxly many-flowered. Flowers large, 
with dorsal sepal and petals erect and adnate, and lateral 
sepals arcuate-recurved. Sepals densely glandular-pubes- 
cent on the outer surface. Dorsal sepal narrowly oblong- 
oblanceolate, acute, about 23.8 mm. long and 5.4 mm. 
wide near the apex, cucullate above. Lateral sepals con- 
nate below into a narrowly ellipsoid spur about 12.7 mm. 
long of which the free apex is incurved and about 8 mm. 
long; free portion arcuate-recurved from a very oblique 
dilated base, faleate, linear-oblanceolate, acuminate, 
about 22 mm. long when extended (measuring along the 
dorsal margin) and 8 mm. wide near the apex, tubular- 
involute. Petals strongly adnate to the dorsal sepal 
throughout most of their length, narrowly oblanceolate- 
linear with a very oblique apical portion, acute, about 
24 mm. long and 8.1 mm. wide near the apex, tubular- 
involute except near the apex, with the anterior margins 
and the anterior half of the outer surface (except near 
the apex) minutely glandular-puberulent. Lip with all 
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