Plant possibly up to 60 em. tall, caespitose. Pseu- 
dobulbs ovoid, 2- to 8-leaved. Leaves ligulate, 18-85 em. 
long, 1.5—2.5 cm. wide. Inflorescence much exceeding 
the leaves, paniculate. Flowers the largest of the alliance, 
about 4.5 em. in diameter. Pedicellate ovary smooth. 
Lateral sepals elliptic-lanceolate, about 23 mm. long and 
6 mm. wide, dorsally carinate near the apex, subobtuse. 
Dorsal sepal oblong-oblanceolate, about 23 mm. long and 
5.2 mm. wide. Petals oblanceolate-spatulate, about 28 
mm. long and 7 mm. wide. Lip about 18 mm. long: 
lateral lobes oblong-spatulate, porrect when expanded, 
8.8 mm. long on the interior margin, obtuse to broadly 
rounded at the apex; mid-lobe suborbicular, 11.4 mm. 
long, 138.2 mm. wide, broadly rounded and indistinctly 
retuse at the apex, broadly cuneate at the base, margin 
throughout more or less undulate; dise much as in the 
typical form, veins very distinct especially the three me- 
dian ones and verruculose. Column straight, with well- 
developed rounded auricles, 8.2 mm. long dorsally. 
The foregoing description was compiled as follows: 
the vegetative portion from the original description by 
Rolfe, the floral portion chiefly from a single flower of 
the type. 
DistriBUTION: Mexico (by inference). 
Epidendrum oncidioides Lind/. var. perplex- 
um Ames, Hubbard & Schweinfurth var. nov. 
Pseudobulbus pyritormis, bifoliatus. Inflorescentia 
laxe paniculata. Sepala lateralia elliptico-lanceolata. Se- 
palum dorsale oblanceolato-oblongum. Petala oblanceo- 
lato-spathulata. Labellum = profunde trilobatum; lobi 
laterales pandurato-oblongi, apice oblique truncati vel 
rotundati; lobus medius suborbicularis. Columna ex- 
auriculata. 
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