sheaths. Leaf oblanceolate or elliptic-oblanceolate, acute 
with a minutely tridenticulate apex, gradually long- 
narrowed into an indistinct petiole, up to 3.7 cm. long 
and 8 mm. wide. Inflorescences one or two to each stem, 
nearly twice as long as the leaf, loosely several-flowered, 
without a markedly fractiflex rachis. Flowers very small, 
pale green with a reddish flush. Sepals 8-nerved. Dorsal 
sepal round-ovate, about 2.5 mm. long and slightly 
broader. Lateral sepals distinctly smaller, oblique. Petals 
minute, transversely rhombic-semiorbicular, entire at the 
broadly rounded much-thickened apex. Lip slightly 
smaller than the petals, transversely rhombic-ovate, with 
a fleshy transverse callus across the middle, subobtuse at 
the broad apex, about 0.8 mm. long and 1 mm. wide. 
Junin: Prov. of Tarma, Utcuyacu, at 1800 meters altitude, on 
moss-covered rocks in forest, leaf thick, April 2, 1948, F. Woytkowski 
37004 (Tyre in Herb. Univ. Calif.; Isoryprs in Herb. Ames and in 
Herb. Mo. Bot. Gard.). 
Stelis punoensis C. Schweinfurth sp. nov. 
Herba mediocris, saxicola. Rhizoma conspicuum, ad- 
scendens, crassum. Caules saepe bini, vaginis tubulatis 
tribus ornati. Folium plusminusve distincte petiolatum ; 
lamina oblanceolata (raro elliptica), acuta, infra sensim 
cuneata. Racemi unici vel tres, maxima pro parte folium 
excedentes, laxe vel subdense pluri- vel multiflori. Flores 
comparate magni, purpurei ut videtur. Sepala trinervia. 
Sepalum dorsale ovatum vel elliptico-ovatum. Sepala 
lateralia multo breviora et latiora, plusminusve connata, 
suborbiculari-ovata. Petala multo minora, suborbicularia, 
supra valde carnosa. Labellum petalis minus, ovatum, 
obtusum;; discus crassitudine basi bilobata antice concava 
occupatus. Columna perbrevis, sursum dilatata, apice 
lobo medio comparate magno. 
Plant medium-sized, up to 26.5 cm. or more tall. 
Roots fibrous, filiform, glabrous, numerous. Rhizome 
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