This plant differs from P. tenuifolia in being more 
slender throughout, with narrower leaves, shorter inflo- 
rescences and much longer sepals. 
Hvuanuco: Prov. of Pachitea, above La Molina near Panao, Sep- 
tember 12, 1940, Erik Asplund 13697. 
Pleurothallis tunguraguae Lehmann & Kriinzlin 
in Engler Bot. Jahrb. 26 (1899) 439. 
A collection of this Ecuadorian species has recently 
been made in Peru. It differs from an isotype specimen 
in the Ames Herbarium in having markedly broader 
leaves (8.1-3.6 cm., as contrasted with 2.5 cm.), only 
two inflorescences (as compared with five in the isotype) 
and the flowers somewhat larger than those described, 
although but little larger than those in the isotype. Also 
the mid-lobe of the lip in the type is relatively larger 
than the lateral lobes. 
Amazonas: Prov. of Bongara, on ridges above Quebrada Santa 
Rosa, across northeast end of Lake Pomacochas, at 2430 meters alti- 
tude, epiphytic in mountain rain forest, flowers white, April 4, 1944, 
W. H. Hodge 6154. 
