from British Guiana. It differs, however, in having a 
more robust habit, broader leaves, smaller and less acu- 
minate sepals and a narrower lip which is incurved at 
the apex. 
Junin: La Merced, Hacienda Schunke, at about 1200 meters al- 
titude, ‘‘epiphyte, translucent with red lines,’’ August 27-September 
1, 1923, J. Francis Macbride 5618. (Tyrer in Herb. Field Mus. No. 
536657; Dupiicatrr typr in Herb. Ames No. 58751); Chanchamayo 
Valley, at 1500 meters altitude, September 1929, Carlos Schunke 1097 
(flowers rather smaller); same locality at 1200 meters altitude, Sep- 
tember 1930, Schunke 1110. 
Pleurothallis spathulifolia C. Schweinfurth sp. 
nOv. 
Herba nana, epiphytica, rhizomate breviter repente. 
Radices crassae. Caules perbreves, vaginati. Folium 
spathulatum, apice rotundatum, infra longe angustatum, 
marginatum. Inflorescentiae unicae vel duae, quam folia 
multo longiores, laxe racemosae. Flores membranacei. 
Sepalum dorsale lanceolatum, acutum, concavum. Se- 
pala lateralia in laminam elliptico-ovatam usque ad 
medium bidentatam connata. Petala oblique elliptico- 
lanceolata, acuta. Labellum ovato-oblongum, antice ro- 
tundatum, basi callo V-formi instructum. Columna late 
alata cum ala apice trilobata. 
Plant dwarf, with the rhizome shortly creeping. Roots 
fibrous, glabrous, stout for the plant. Stems very short, 
3-4 mm. long, enclosed by one to three loose tubular 
evanescent glabrous sheaths. Leaf spatulate, up to 1.6 
cm. long and 6 mm. wide, rounded at the apex with a 
minutely tridenticulate tip, gradually long-narrowed be- 
low, marginate, subcoriaceous. Inflorescences one or two, 
filiform, much surpassing the leaf, few- (up to 11-) flow- 
ered above, rather loose. Floral bracts minute, infundi- 
buliform, aristate, about equaling the recurved pedicels. 
lowers small, membranaceous. Dorsal sepal lanceolate, 
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