long, hexagonal. Ovary conspicuously 6-winged, becom- 
ing spherical at maturity; ripe capsule lightly winged, 
4mm. long. Flowers about 5.5 mm. long with the peri- 
anth segments more or less connivent (yellowish when 
dry). Lateral sepals 5 mm. long, about 1.5 mm. wide, 
oblong, abruptly tapering to the subacute apex, conspic- 
uously keeled along the middle on the outer surface, 
membranaceous. Dorsal sepal similar. Petals 5 mm. long, 
2mm. wide, oblong or somewhat oblong-cuneate, round- 
ed at the apex, obscurely acute, keeled externally along 
the mid-nerve. Labellum about 5 mm. long, about 3 mm. 
wide, lightly saccate at the base, obscurely 3-lobed with 
the lateral lobes rounded and the terminal lobe quad- 
rate. Dise of the labellum copiously glandulose with a 
reflexed callus near the base from which a conspicuous 
keel extends to a centrally situated, crescentiform, glan- 
dulose, transverse membranous callus. Column constrict- 
ed below the middle, produced into a bilobed foot, free 
portion 2 mm. long; clinandrium oblique; stigmatic ori- 
fice basal and near the point of origin of the bilobed foot. 
Anther semiglobose, shortly produced in front into a tri- 
angular point. Pollinia 4, in pairs at the summit of a nar- 
rowly oblong stipe. 
Mexico: epiphyte on Ternstroemia Pringlei, La Labor, District of 
Temascaltepec, February 21, 1936, George B. Hinton 8928 (Typr in 
Herb. Ames No. 49612. Dupticare tyre in Herb. Kew); Comunidad, 
January 3, 1936, Hinton 8951; epiphyte, near Tepeyte, mountains 
northwest of Cuernavaca, Morelos, at 2200-2600 meters altitude, May 
15, 1938, Louis O. Williams 3799. 
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