This variety differs from the type in having strict ra- 
cemes which are more or less longer than the leaf, much 
narrower petals and a trilobulate lip. 
Cuzco: Prov. of Urubamba, Tuncapata, Sta. Rita, at 2800 meters 
altitude, epiphytic, flower yellow-brown, March 28, 1942, C. Vargas 
2663 (Tyrer in Herb. Ames No. 65369); Near Tuncapata, at 2600 
meters altitude, “‘laderas junto al camino entre herbaceas,’’ March 
10, 1944, C. Vargas 4098. 
Pleurothallis pedunculata (K/.) Reichb.f. var. 
peruviana C. Schweinfurth var. nov. 
Herba inflorescentiis quam folium multo longioribus 
et floribus minoribus et segmentis angustioribus et labello 
magis ovato a specie differt. 
Plant large, 80 to over 40 cm. high. Stems approxi- 
mate, rather slender, unifoliate, 8-18 cm. long, with two 
or three close, tubular, evanescent sheaths. Leaf shortly 
but distinetly petioled; lamina ovate-oblong to oblong- 
elliptic, acute with a minutely tridenticulate apex, broad- 
ly cuneate at the base, up to 18.5 cm. long and 4.3 cm. 
wide. Inflorescences one to three, suberect to flexuous, 
about 23 cm. or less long, loosely few- to several-flowered, 
subtended by a conspicuous conduplicate spathe up to 
5.7 em. long. Flowers smaller than in the species, ‘‘red- 
dish-greenish-yellow.’” Dorsal sepal linear-lanceolate, 
gradually narrowed to an obtuse tip, about 1.6 cm. long 
and 2.8 mm. wide at the concave base. Lateral sepals 
connate into an oblong-lanceolate, ]long-acuminate lam- 
ina which is slightly shorter but much broader than the 
dorsal sepal. Petals lanceolate-linear, caudate-acuminate 
and fleshy above, almost as long as the dorsal sepal. Lip 
much shorter than the other segments, tubular-involute in 
natural position, oblong-ovate when expanded, rounded 
at the apex, about 5.9 mm. long and 4 mm. wide near 
the base, with the anterior half rather abruptly con- 
tracted. Column minute. 
[ 54 | 
