dilatata (Lind1.) Schltr. 
guayanensis (Lind1.) Schltr. 
Hatschbachii Pabst = Stigmatosema Hatschbachii (Pabst) Garay 
Hoehnei Pabst = Brachystele Ulaei (Cogn.) Schltr. 
icmadophila (Barb.Rodr.) Schltr. ex Pabst, nomen = Spiranthes icmado- 
phila Barb. Rodr. 
Lechleri Schltr. = Brachystele unilateralis (Poir.) Schltr. 
longiflora Schltr. = Sauroglossum longiflorum (Schltr.) Garay 
Nuil (L.C.Rich.) Schltr. = Brachystele unilateralis (Poir.) Schltr. 
Brachystele pedicellata (Cogn.) Garay, comb. nov. 
Basionym: Spiranthes pedicellata Cogn. in Mart., Fl. Bras. 3(4): 210, 
1895. 
spiranthoides Schltr. = Brachystele cyclochila (Krzl.) Schltr. 
subfiliformis (Cogn.) Schltr. 
Ulaei (Cogn.) Schltr. 
unilateralis (Poir.) Schltr. 
Widgrenii (Rchb.f.) Schltr. 
Buchtienia Schltr. in Fedde, Rep. 27: 33, 1929. 
Etymology: In honor of Otto Buchtien (1859 — 19..), a Ger- 
man plant collector and Director of Museo 
National in La Paz, Bolivia. 
Dorsal sepal erect, free, partially adnate to back of column; 
lateral sepals divaricate, connate at base and forming a more or 
less didymous sac with a short column-foot. Petals shorter than 
dorsal sepal to which the inner margins agglutinate, base decur- 
rent on column-foot. Lip sessile, inarticulate, smaller than other 
perianths; the broadly subquadrate claw with thickened mar- 
gins, more or less subsaccate, firmly fused with column-foot and 
enclosed in the sac-like base of the lateral sepals; blade 3-lobed, 
lateral lobes erect, midlobe reflexed. Column short, glabrous, 
terete, somewhat sigmoid, form a narrow pedicellate base 
abruptly expanding upwards into an urceolate clinandrium, 
basally produced in an oblique foot on top of ovary; stigmata 2, 
approximate to confluent, transversely elliptic, marginate; ros- 
tellum undivided, soft, laminar, arrect, obovate to angular, esul- 
cate in middle (never 3-lobed as originally reported). Anther 
erect to somewhat incumbent, umbonate; pollinia obovoid with 
a small viscidium. Ovary sessile. 
Terrestrial, large plants. Roots fasciculate, tuberous. Leaves 
basal, several, long-petiolate. Scape much surpassing the leaves, 
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