sepal slightly broader than the lamina of the lateral sepals. 
It occurs at a rather greater altitude than the type. 
Cuzco: Prov. of Convencién, Hda. Potrero, Sapan Sachayoce, at 
2200 meters altitude, epiphytic in dense forest, March 5, 1942, C. 
Vargas 2561 (Tyrer in Herb. Ames No. 65371); “‘Pillahuata,’’ Cerro 
de Cusilluyoc, above Rio Pillahuata, at 2300-2400 meters altitude, 
epiphyte in forest, May 38-6, 1925, F. W. Pennell 14005. 
Pleurothallis Lindenii Lind/ey var. longiracema 
C. Schweinfurth var. nov. 
Herba mediocris, inflorescentia stricta quam folium 
longiore et petalis oblongo-linearibus et labello trilobu- 
lato a specie differt. 
Plant medium-sized, up to 89 cm. tall. Stems often 
proliferating, the lower stems about 9-21 cm. long from 
a decumbent base, unifoliate, with 8 or 4 close, tubular, 
evanescent sheaths. Leaves sessile or very short-petioled, 
ovate-oblong to elliptic-oblong, acute or acuminate, cu- 
neate at the base, up to 11.5 cm. long and 2.8 cm. wide. 
Inflorescences solitary, strict or nearly so, loosely few- 
to several-flowered, up to 18 cm. long, rising from a 
more or less conspicuous, conduplicate spathe up to 1.9 
em. long. Flowers bilabiate, rather similar to those of 
the type, apparently densely spotted. Dorsal sepal ob- 
long-ovate, acuminate, concave, about 10 mm. long and 
5.2 mm. wide when expanded. Lateral sepals entirely 
connate into a deeply concave suborbicular-ovate lamina 
which is slightly longer but much broader than the dor- 
sal sepal. Petals oblong-linear, acute, suboblique, about 
7.5 mm. long. Lip much shorter than the other seg- 
ments, suborbicular-ovate in outline, lightly but dis- 
tinctly 3-lobed, cordate at the base, acute at the apex, 
about 4 mm. long and 5.2 mm. wide; lateral lobes ob- 
liquely ovate-rounded, apparently contracted by a me- 
dian transverse keel; mid-lobe larger, triangular-ovate. 
Column minute, stout. 
