duplo latioribus, tepalis latioribus, labello profunde bi- 
lobato, caleari multo longiore incurvato facile distin- 
guendus. 
Planta epiphytica vel rarius terrestris; caulis elonga- 
tus, pauciramosus, usque ad 50 cm. longus, verosimiliter 
plus minusve dependens, circiter 4-6 mm. diametro, fere 
teres vel sectione ellipticus, radices 8-6 cm. distantes ad 
15 em. longas et 4mm. diametro laeves griseas per totam 
longitudinem emittens. Folia disticha, 1.5-8 cm. dis- 
tantia, fere patentia; vagina arcta, dorso leviter carinata, 
nervosa, 1.5-2.5 cm. longa, apice truncata; lamina el- 
liptico-oblonga vel fere elliptica, apice oblique inaequal- 
iter bilobata, lobulis subconniventibus lobulo breviore 
vix distincto, basi subrotundata vel rotundata, 5—9.5 em. 
longa, 1.5-4.25 em. lata, siccitate nigrescens. Inflores- 
centiae 1—8-natae, folia aequantes vel paulo superantes, 
5-9 cm. longae, fere ad basin subdense multiflorae, basi 
vaginis paucis ochreatis infimis truncatis superioribus lan- 
ceolatis acutis instructae; rhachis teres, leviter fracti- 
flexa; bracteae laxe vaginantes, ochreatae, truncatae, 
1-2 mm. longae, 8-4 mm. distantes. Flores patentes, 
pellucidi, albidi vel viridescentes ; pedicellus (cum ovario) 
2-3 mm. longus. Sepalum intermedium elliptico-oblon- 
gum vel oblongo-obovatum, apice rotundatum, 3.75- 
4.75 mm. longum, 2-38.25 mm. latum; sepala lateralia 
oblique vel leviter curvatim ligulato-oblonga, apice ro- 
tundata, 4.5-5.5 mm. longa, 1.75-2.5 mm. lata, dorso 
humiliter carinata; omnia sepala trinervia. Petala oblique 
elliptico-oblonga vel elliptico-ovata, apice breviter acu- 
minata, basi subrotundata, 3.5-4 mm. longa, 2-8 mm. 
lata, binervia vel trinervia, nervis lateralibus ramosis. 
Labellum ambitu late subpandurato-oblongum, trienti- 
bus duobus apicalibus recurvatis, triente apicali proftunde 
trilobatum, in toto 4.75—5.75 mm. longum, 8.5—-4.8 mm. 
latum; lobus intermedius brevissimus, dentiformis; lobi 
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