ORCHIDACEAE QUAEDAM AMERICANAE 
Plants 18-21 cm. tall, leafy at the base, the 2-3-flowered 
inflorescence borne at the summit of a slender peduncle. 
Roots few, rather coarse. Leaves approximate; petioles 
1.5-2.5 cm. long, sheathing at base, slender above; lamina 
1.5-2.5 cm. long, up to 1.2 cm. wide, ovate, acute, charta- 
ceous when dry, mid-vein conspicuous. Peduncle, including 
the raceme, 12-18.5 cm. long, glandular-pubescent above, 
with four to five sheath-like bracts 2-2.5 cm. long, which 
are spreading and acute at the tip. Raceme few-flowered 
(2-3). Bracts of the inflorescence linear-lanceolate, acute, 
exceeding the pedicellate ovary, scarious, erect. Ovary 
very sparsely glandular-pubescent, about 1 cm. long, ascend¬ 
ing or erect, narrowly fusiform. Flowers yellowish white 
when dry. Lateral sepals 8 mm. long, linear-oblong from 
a dilated base, acute, 1-nerved, translucent, spreading. 
Dorsal sepal 7 mm. long, about 1 mm. wide, linear-oblong, 
obtuse, adherent to the petals, concave at base. Petals 
about 7 mm. long, spatulate, acute, slender at base and for 
one half their length, 1 mm. wide near their tip, rather 
coarsely crenate-dentate on the upper margin, conspicuously 
1-nerved. Labellum 7 mm. long, 2 mm. wide near the 
middle, rounded at the base, contracted abruptly into the 
short claw, apical fourth expanded into a broadly reniform 
obtuse plate, 2 mm. long, 3 mm. wide. Disc 5-nerved, 
with two inconspicuous papilliform calli, one on each side 
at base. Gynostemium 6 mm. long, slender up to the mid¬ 
dle, where it is abruptly dilated into an ovate-lanceolate 
acute plate. 
Allied to Spiranthes data L. C. Rich., but much smaller, 
with fewer-flowered racemes and a different labellum. 
Guatemala, Department of Alta Verapaz, Coban, 
H. V. Tuerckheim II 1787, May 1907. 1350 meters altitude. 
(Type in U. S. Nat. Herb. No. 825828.) 
Sarcoglottis hemichrea (Lindl.) Ames comb. nov. 
Spiranthes hemichrea Lindl. Gen. & Sp. Orch. (1840) 
473. Spiranthes pulchra Schltr. in Fedde Repert. 15 (1918) 
198. Deiregyne hemichrea Schltr. in Beihefte Bot. Centralbl. 
37, Abt. 2 (1920) 427. Deiregyne pulchra Schltr. in Beihefte 
