Erythrodes marmorata C. Schweinfurth sp. nov. 
Herba terrestris, gracilis, basi decumbens. Folia plura, 
prope caulis basim conferta, parva, ovata, marmorata, 
apice acuta, basi rotundata. Caulis villosus, vaginis plur- 
ibus inconspicuis remotis ornatus. Spica brevis, multi- 
flora, tandem laxa. Flores spiranthiformes. Sepala extus 
parce pilosa. Sepalum dorsale lanceolato-oblongum, ob- 
tusum vel subacutum. Sepala lateralia lineari-oblonga, 
obtusa vel subacuta. Petala oblanceolato-oblonga, sepalo 
dorsali adnata. Labellum infra elliptico-subquadratum, 
supra leviter contractum, demum in lobum transversum 
lunato-reniformem acutum dilatatum. Calcar perbreve, 
ovoideo-conicum. Columna minuta, rostello bifido. 
Plant slender, terrestrial, up to about 85 cm. tall. with 
the decumbent basal portion producing scattered long 
simple lanuginose roots. Leaves about five to seven, 
mostly approximate on the lower portion of the stem, 
petiolate; lamina ovate to oblong-ovate, up to 4.3 cm. 
long and 2.3 cm. wide, acute or short-acuminate, round- 
ed or broadly cuneate at the base, maculate with two 
shades of green, with the margins more or less finely 
undulate in the dried specimen; petioles channelled, di- 
lated near the middle to form a broad loose membrana- 
ceous infundibuliform sheath which clasps the stem. 
Stem slender, pilose, provided with four or five incon- 
spicuous sheaths of which the lowermost is developed 
into a small blade. Inflorescence a many-flowered spike, 
up to about 7 cm. long, dense above, becoming very 
loose below. Floral bracts lanceolate, acuminate, mem- 
branaceous, about equaling or slightly exceeding the 
ovary. Ovary very slenderly obovoid-cylindric, finely 
pubescent, ascending. Flowers horizontally spreading 
like those of Spiranthes, perianth campanulate. Sepals 
sparingly pilose without. Dorsal sepal lanceolate-oblong, 
obtuse or subacute, about 5-6 mm. long and 1.8—2 mm. 
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