in diameter in dried specimens. Leaf about 12 cm. long, 
1-1.7 em. wide, oblong, tapering gradually from about 
the middle to the tridenticulate tip and to the slender 
petiole-like base, mid-nerve prominent beneath. Pedun- 
cle slender, up to 9 cm. long below the raceme, bearing 
several closely appressed tubular sheathing bracts and 
terminating in aslender many-flowered raceme. Raceme 
exceeding the leaves, about 12 em. long. Bracts of the 
raceme infundibuliform, about 2 mm. long to the acute 
apex, about 8mm. apart. Sepals fleshy, elliptical, obtuse, 
3-nerved, about 8 mm. long, 2 mm. wide, strongly con- 
vex, densely covered on the inner surface with erect crys- 
talline glands, united at base forming a shallow cup which 
is about 1 mm. deep, the lateral sepals somewhat larger 
than the dorsal sepal. Petals about 1 mm. long, about 
1mm. wide, suborbicular, slightly concave, hardly thick- 
ened at the apex, 1-nerved, usually equalling the column. 
Labellum about 1 mm. long, suborbicular, fleshy, semi- 
globose when viewed from the side, with the anterior 
margin minutely denticulate, the terminal tooth larger 
than the others and sharply deflexed; dise with a basal 
posteriorly glandulose rounded more or less porrect callus, 
thickened in front of the basal callus laterally to form a 
pair of carinae which extend almost to the apex of the 
labellum bounding a well-marked depression. Column 
about 1 mm. long, conspicuously trilobed at the dilated 
summit with the posterior lobe triangular-obtuse and 
sharply inflexed, and with the lateral lobes stigmatiferous, 
rounded and divaricate; rostellum broadly triangular, 
deflexed. Pollinia two, narrowly pyriform. 
‘There are two sets of specimens of this species made 
by C. H. Lankester in 1925. No. 1010 from La Estrella 
de Cartago is characterized by having the petals orbicular 
and about equal to the column in length. No. 1051 from 
Cachi is characterized by elliptical-oblong petals that are 
[ 49 | 
