petiolate. Scape erect, slender, several-sheathed, terminated bya 
loosely few-flowered spike. Flowers small. 
TYPE: Spiranthes muscicola Garay & Dunsterv. 
One species native to the high Andes of Venezuela. 
Index to species. 
Stalkya muscicola (Garay & Dunsterv.) Garay, comb. nov. 
Basionym: Spiranthes muscicola Garay & Dunsterv., Venez. Orch. Ill. 4: 
280, 1966. 
Stenoptera Pres| 
actinosophila (Barb.Rodr.) Cogn. = Eurystyles actinosophila (Barb.Rodr.) 
Schltr. 
ananassocomos Rchb.f. = Eurystyles ananassocomos (Rchb.f.) Schltr. 
Guentherana Krzl. = Eurystyles Guentherana (Krzl.) Garay 
Lorenzii Cogn. = Eurystyles Lorenzii (Cogn.) Schitr. 
Roehlii Schnee = Eurystyles Cotyledon Wawra 
Stenorrhynchos L.C.Rich. ex Spreng., Syst. Veg. 3: 677, 1826. 
Etymology: Srenos = narrow and rhynchos = snout, in refer- 
ence to the slender rostellum. 
Sepals similar, free, parallel, rather tightly connivent, with 
flaring apices; dorsal sepal concave, free from column; lateral 
sepals oblique, slightly gibbose at base, but not decurrent. Petals 
agglutinate with dorsal sepal, without free apices, at most 
slightly oblique at base. Lip sessile at conduplicate, to gibbose 
base with the margins callose-thickened; blade conduplicate, 
arcuate with recurved apex; lateral margins agglutinate with 
sides of column. Column short, stout, with a distinct oblique 
base on top of the ovary; stigmata 2, approximate to confluent; 
rostellum rigid, linear-lanceolate to almost acicular, sharp- 
pointed. Anther narrowly ovate-lanceolate, cordate at base, 
acute above; pollinia linear-clavate with rather long, linear- 
laceolate viscidium. Ovary obliquely clavate to obovate, sessile, 
somewhat twisted. 
Terrestrial, erect, often robust plants. Roots fleshy, fascicu- 
late, tuberous, commonly stipitate. Leaves commonly synan- 
thous, rarely hysteranthous, usually basal, occasionally cauline 
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