ORCHIDACEAE QUAEDAM AMERICANAE 
attenuata. Sepalum dorsale anguste ellipticum. Petala 
cum sepalo dorsali galeam formantia. Labellum trilobatum, 
lobis lateralibus inconspicuis, basi sagittatum. Gynostemium 
abbreviatum, rostello denticulate. 
Plant slender, probably exceeding 30 cm. in height, 
leafless at time of anthesis. Scape provided with several 
sheaths which are 3-4 cm. long, closely appressed below 
the middle, dilated upward, and continued obliquely into 
an acute spreading tip. Raceme about 12 cm. long, loosely 
many-flowered, with a glandular-pubescent rachis. Bracts 
of the inflorescence lanceolate, acuminate, acute, 1-1.9 cm. 
long (the lowermost are largest). Pedicel very short, 
with the glandular-pubescent ovary about 1.3 cm. long, 
somewhat arcuate. Flowers scarcely 1 cm. long. Lateral 
sepals 7.5 mm. long, including the mentum 11 mm. long, 
in front decurrent on the ovary, oblong, near the middle 
2.5 mm. wide, gradually attenuated into an obtuse tip, 
3-nerved. Dorsal sepal 8 mm. long, adherent to the petals, 
with which it forms a strongly concave hood over the 
gynostemium, narrowly elliptic, obtuse. Petals 7.5 mm. 
long, about 1 mm. wide, oblong-lanceolate, obtuse, 3-nerved. 
Labellum about 1 cm. long, 3-lobed near the tip; lamina 
about 5 mm. wide near the middle, elliptical or suborbicular, 
contracted above to form the small inconspicuous hardly 
produced lateral lobes and the broadly triangular-ovate 
middle lobe, sagittate at the base with the auricles 2 mm. 
long thickened and subterete; middle lobe 2 mm. long, 
2.25 mm. wide across the base. Gynostemium about 6 mm. 
long, suddenly dilated above the short base into a lanceo¬ 
late plate the apex of which is formed by the minutely 
denticulate rostellum. 
Allied to Spiranthes Schaffneri Reichb. f., but taller, 
leafless at flowering time, and with a 3-lobed labellum. 
Guatemala, Department of Santa Rosa, Zamorora, 
Heyde & Lux (John Donnell Smith Distribution No. 4625), 
April 1893. (Type in Herb. Ames No. 6404. Duplicate 
TYPE in U. S. Nat. Herb. No. 576405.) 
