TROPICAL AMERICAN ORCHIDS 
Epidendrum integrilabium A. & S. sp. nov. Herba 
mediocris. Pars caulis inferior non visa. Caules graciles, 
vaginis foliorum striatis verruculosis omnino obtecti. Folia 
disticha, lanceolato-linearia, patentia. Inflorescentiae termi- 
nales, dense distichiflorae. Flores perparvi. Sepala crassa, 
oblonga, trinervia. Petala linearia, uninervia. Labellum 
gynostemio adnatum, ovatum, acutum, trinervium, basi 
bicallosum. Gynostemium generis. 
Stems slender, little branched, 1.5-2 mm. in diameter, 
entirely concealed by the striate verruculose leaf-sheaths. 
Leaves lanceolate-linear, distichous, spreading, 2.2 (rarely) 
-5.85 cm. long, 2.9-4.6 mm. wide below the middle, obtuse 
or acutish, margins inconspicuously erose, mid-nerve con¬ 
spicuously carinate beneath. Inflorescence a dense raceme 
which is more or less arcuate, 2.8-5 cm. long. Floral bracts 
distichous, triangular-lanceolate, exceeding the ovary. 
Flowers very small, subsessile, the perianth parts spreading 
above the middle, 6.5 mm. long in natural position. Sepals 
3-nerved, fleshy. Lateral sepals oblong, oblique, 7 mm. long, 
2.1-2.5 mm. wide when the involute margins are flattened, 
rounded above, abruptly acute, a pronounced dorsal keel at 
the tip produced into an apicule. Dorsal sepal similar, with 
a more pronounced mucro. Petals linear, obtuse, about 
6 mm. long, 1.5 mm. wide, 1-nerved or indistinctly 3-nerved, 
concave near the tip. Labellum long-adherent to the col¬ 
umn; lamina ovate, sessile, 5 mm. long, 3.1 mm. wide near 
the base, acute, the apex thickened by a dorsal keel. Disc 
3-nerved, a pair of inconspicuous calli at base. Column 
short, stout, almost 3 mm. long. 
Epidendrum integrilabium in vegetative appearance 
closely suggests E. fimbriatum HBK., but the labellum 
has entire margins. 
Bolivia, Yungas, H. H. Rusby 2817, 1885. 6000 feet 
altitude. (Type in Herb. Acad. Nat. Sci. Phila.) 
Epidendrum lockhartioides Schltr. in Fedde Re- 
pert. Beihefte 19 (1923) 39. 
This striking species has appeared in a recent collection 
made by C. H. Lankester in Costa Rica. The floral parts of 
46 
