escarpment, December 31, 1951, B. Maguire 32877; Chimanta Massif 
(Central Section), at 1940 meters altitude, on border of large rocks by 
large savanna below Upper Falls of Rio Tirica above Summit Camp, 
“*sepals yellow with dull brick-red margins and tips; lip maroon; 
column greenish with pale yellow apex,’’ February 7, 1955, Julian A. 
Steyermark & John J. Wurdack 607. 
Octomeria lancipetala C. Schweinfurth sp. nov. 
Herba parva vel mediocris, epiphytica. Caules graciles, 
usque ad 17.5 cm. alti, pluri- vel multiarticulati, vaginis 
longe tubularibus arctissime celati. Folium lanceolato- 
lineare, apice acutum vel minute tridenticulatum, crasse 
coriaceum, circiter usque ad 9 cm. longum et 4.5 mm. 
latum. Flores parvi, numerosi, in glomerulis axillaribus, 
cum segmentis patentibus. Sepalum dorsale ovatum vel 
lanceolato-ovatum, acutum vel acuminatum, trinervium, 
circiter 4 mm. longum et 2.1 mm. latum. Sepala later- 
alia similia, sed paulo longiora et angustiora. Petala an- 
guste lanceolata, acuta vel acuminata, uninervia, circiter 
3.2-3.8 mm. longa et 1 mm. lata. Labellum segmentis 
ceteris multo minus, simplex, valde geniculatum, antice 
late rotundatum et aliquando apiculatum, postice cor- 
dato-truncatum, circiter 1.1 mm. longum et 1.5—1.8 mm. 
latum, cum ungue brevi cuneato; discus basi incrassatione 
obliqua utrinque ornatus. Columna minuta, crassa, apice 
dilatata, circiter 1 mm. alta. 
This species appears to be allied to Octomeria cordilabia 
C. Schweinf., but has commonly much shorter stems 
and very dissimilar sepals and petals. 
Amazonas: Cerro Huachamacari, Rio Cunucunuma, frequent in 
cumbre, at 1700 meters altitude, flowers purple, December 4, 1950, 
Bassett Maguire, R. S. Cowan & John J. Wurdack 29823; Same locality, 
along right fork of Cafio de Dios near Summit Camp, at 1800 meters 
altitude, in dense woodland, December 13, 1950, Maguire, Cowan & 
Wurdack 30170A (Tyre in Herb. Ames No. 69528); Cerro dela Neb- 
lina, Rio Yatua, in scrub forest 1 to 5 kilometers north of Cumbre 
Camp, at 1800 meters altitude, occasional on tree trunks, buds ma- 
roon, January 10, 1954, Bassett Maguire, John J. Wurdack & George 
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