ORCHIDACEAE QUAEDAM AMERICANAE 
with the raceme about 14 cm. long, rigid, erect, many-flowered, 
with several closely appressed tubular sheaths below the in¬ 
florescence. Raceme up to 9.5 cm. long, slender. Floral 
bracts about 2 mm. long, clasping the rachis, loosely appressed, 
acute. Pedicel with the ovary about 3 mm. long. Sepals 
coherent at base, subequal, the laterals 2 mm. long, 2 mm. 
wide, round-oval, obtuse, 3-nerved, margin smooth. Dorsal 
sepal 2.5 mm. long, 2 mm. wide, broadly ovate from a wide 
base, 3-nerved, obtuse. Petals hardly 1 mm. long, cuneate- 
suborbicular, distinctly cucullate at the rounded apex, 
hardly thickened (margin sharply bent inward to form a 
hood), 3-nerved. Labellum 1 mm. long, widely cuneate 
below the middle, apical half transversely elliptical, with an 
incurved apicule at the broad tip. Callus prominent on the 
disc, bilobed in front, tbe lobes rounded, porrect. Column 
fleshy, dilated at the apex. 
In habit similar to Stelis apiculata Schltr., from which it 
differs in the hooded petals. 
Colombia, State of Cauca, Around Huila, Indian 
village in Rio Paez Valley, Tierra Adentro, H. Pittier 1299, 
.lanuary 1906. 1600-1900 meters altitude. (Type in U. S. 
Nat. Herb. No. 531497.) 
Stelis longipetiolata Ames sp. nov. Ilerba caespitosa. 
Folium anguste oblongo-ellipticum in petiolum perlongum 
contractum. Sepala ovato-deltoidea. Pctala rotundato- 
ovata, valde obtusa, incrassata. Labellum reniforme, valde 
incrassatum, callo transverse ornatum. Columna crassa, 
usque ad apicem dilatata. 
Roots fibrous, very slender. Secondary stems crowded, 
forming dense tufts, 2-3 cm. long, very slender, trivaginate, 
lowermost sheath 3-4 mm. long, inflated, the uppermost 
sheaths 1-1.5 cm. long, tubular, longitudinally nervose, 
concealing the stem. Leaf narrowly elliptic-oblong, at¬ 
tenuated at both ends, the base contracted into a slender 
sulcate petiole; lamina 4.5-5.5 cm. long, 7-11 mm. wide; 
petiole 2-2.5 cm. long. Peduncles solitary, with the raceme 
about 8 cm. long, very slender, many-flowered, arising from a 
closely appressed complanate spathe; basal flowers 5-7 mm. 
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