Stelis curvicarina C. Schweinfurth sp. nov. 
Herba mediocris, caespitosa, gracilis. Caules approx- 
imati, graciles, vaginis tubulatis tribus obtecti. Folium 
unicum, suberectum, petiolatum; lamina anguste ob- 
longa vel elliptico-oblonga, subacuta, basi cuneata, cori- 
acea. Racemi unici vel bini, folium valde superantes, 
erecti vel suberecti, dense vel subdense multiflori. Flores 
parvi, distichi, bilabiati. Sepala trinervia, membranacea. 
Sepalum dorsale elliptico-ovatum, subacutum. Sepala 
lateralia plusminusve connata, oblique suborbiculari- 
ovata, sepalo dorsali multo breviora, valde concava. 
Petala multo minora, transversa, semiorbiculari-ovata, 
antice incrassata et late rotundata. Labellum in circuitu 
suborbiculari-ovatum, leviter trilobatum, apice rotunda- 
tum; lobi laterales parvi, semiobovati; lobus medius 
comparate magnus, suborbicularis; discus prope basim 
cum carina transversa arcuata. Columna minuta. 
Plant medium-sized, slender, caespitose, up to 27.5 
em. tall. Roots fibrous, filiform, glabrous. Stems ap- 
proximate, slender, about 6 cm. long (sterile stems 
shorter) concealed by three close tubular evanescent 
sheaths of which the uppermost is much the longest. 
Leaf solitary, erect or ascending, shortly petioled, about 
7 cm. long; lamina narrowly oblong or elliptic-oblong, 
subacute with a minutely tridenticulate apex, cuneate 
below, up to 5.8 cm. long and 1 cm. wide, coriaceous, 
with the mid-nerve more or less exserted beneath. Ra- 
cemes one or two, much surpassing the leaf, erect or 
suberect, densely or subdensely many-flowered (looser 
near the base), up to 20 cm. long. Floral bracts small, 
shallowly infundibuliform, spreading, obtuse and apicu- 
late. Flowers small, distichous, bilabiate, glabrous, with 
widely spreading sepals. Sepals 8-nerved, membrana- 
ceous. Dorsal sepal elliptic-ovate, subacute, lightly con- 
cave, somewhat connate with the lateral sepals at the 
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