concave sepals and petals. Lateral sepals oblong-lanceo- 
late to elliptic-lanceolate or elliptic-oblong, 12.1—15.8 
mm. long, 8.1-4.9 mm. wide, subacute to sharply acute, 
dorsally carinate-thickened near the apex. Dorsal sepal 
oblong-oblanceolate or elliptic-oblanceolate, 11.8—15.8 
mm. long, 8—4.9 mm. wide, obtuse to acute, more or less 
thickened at the apex. Petals spatulate, oblanceolate- 
spatulate or oblong-spatulate, 11.1—-14 mm. long, 8.2—5.7 
mm. wide, rounded to acute at the apex. Lip 9.9-12.9 
mm. long from base of column to foremost extent of 
mid-lobe; lateral lobes rarely oblong-spatulate or spatu- 
late to obovate-spatulate with the apical portion usually 
bulbous-dilated, commonly more or less asymmetric, 
sometimes very porrect when expanded, rarely lobulate, 
5—6.1 mm. long on the interior margin, broadly rounded 
at the apex; mid-lobe suborbicular-ovate or subquadrate- 
ovate to suborbicular or suborbicular-quadrate, very rare- 
ly lobulate below the middle, apt to be reduplicate, 6-9. 1 
mm. long, 6.5—9 mm. wide, subobtuse to broadly round- 
ed or subtruncate at the base; margin not distinctly pli- 
cate, but more or less undulate; dise much as in the typi- 
cal form, veins less prominent than in the typical form 
though more fleshy and smooth to minutely verruculose. 
Column straight or nearly so, without auricles, with ob- 
scure angles or with minute sharp auricles, 5.1—7.2 mm. 
long. 
DISTRIBUTION: Costa Rica and Panama. 
Epidendrum oncidioides Lind/. var. profusum 
(Rolfe) Ames, Hubbard & Schweinfurth comb. nov. 
Epidendrum ambiguum Lindley as misdetermined 
by Rolfe in Orch. Rev. 21 (1918) 215. 
Epidendrum profusum Rolfe in Bot. Mag. 140 
(1914) t. 8551. 
[107 ] 
