many-flowered, with the densely glandular-pubescent 
rachis about 14-20 cm. long. Floral bracts ovate-lanceo- 
late, much shorter than the pedicellate ovary which they 
clasp, up to9 mm. long. Pedicellate ovary very slender 
when young, clavate-ellipsoid in course of development. 
Flowers nearly glabrous, white with green outer surface 
of sepals and about seven green lines on inner surface of 
petals. Dorsal sepal elliptic, subacute, 3-nerved, about 
6.3mm. long and 2.7 mm. wide. Lateral sepals obliquely 
oblong-ovate, broadly rounded on the anterior margin, 
obtuse, about 7 mm. long across the posterior margin 
and 4 mm. wide, 4- to 5-nerved. Petals adnate to the 
lower third of the column, oblong-semihastate, obtuse, 
about 6 mm. long and 2.6 mm. wide across the round- 
dilated anterior part, about 4-nerved with the narrow 
cuneate claw about 1.75 mm. long. Lip adnate to the 
lower third of the column by a stout claw which is semi- 
circular when viewed from the side, erect and parallel to 
the column; claw mostly occupied by a complanate 
semiorbicular callus and terminated by a pair of linear 
spreading gently recurved horns; lamina concave-condu- 
plicate in natural position, when expanded ovate-sub- 
quadrate, subcordate at base, sharply 3-lobed in front 
with a small suborbicular-obovate apically concave lob- 
ule, about 4.8 mm. long and 4 mm. wide. Column 
stout, about 4 mm. high, terminating in a sharp erect 
process. 
This species appears to be allied to Ponthieva olig- 
oneura Schitr., but is much larger throughout. Further- 
more, the pair of linear horns at the apex of the claw of 
the lip is extraordinary. 
Junin: Prov. of Tarma, Agua Dulce, at 2400 meters altitude, in 
highland dwarf forest, “‘leaf very soft and weak, stem pale brown,”’ 
March 12, 1948, F. Woytkowski 85457 (Tyrr in Herb. Ames No. 
65450; Isoryprs in Herb. Univ. Calif. and in Herb. Mo. Bot. Gard. ). 
[ 6 ] 
