NEW OR NOTEWORTHY ORCHIDS 
petiole), scarcely 5 mm. wide, oblanceolate, marginate, 
bidenticulate at the rounded apex with the middle nerve 
forming a prominent cusp. Peduncle 2-2.5 cm. long, hardly 
equaling the leaf, fdiform, bearing a few-flowered raceme. 
Flowers 4-5 mm. apart, two to three in a loose raceme. 
Bracts of the inflorescence minute, scarious, infundibuli- 
form. Lateral sepals 5 mm. long, united almost to the tip, 
forming an elliptical plate which is 3 mm. wide; each sepal 
3-nerved with the innermost nerve almost obsolete, the mid¬ 
dle nerve prominent on the outer surface. Dorsal sepal 5 
mm. long, narrowly lanceolate, acute, 3-nerved. Petals 
about 4 mm. long, 1.5 mm. wide below the middle, ovate- 
lanceolate, acuminate, membranaceous, 1-nerved, the apical 
third more or less caudate and densely glandulose. Labellum 
2.5 mm. long, lightly 3-lobed; lateral lobes basal, erect, 
forming together (when spread out) an orbicular plate in 
front of the terminal or middle lobe which is 1.5 mm. long, 
oblong, obtuse in outline, and lightly convex. Disc eglandu- 
lose or sparsely glandulose, traversed by two longitudinal 
keels which issue from a minute basal callus. Column more 
or less arcuate, produced into a short foot, quadridentate at 
the summit, the teeth inconspicuously denticulate. 
A near ally of this species is Pleuroihallis abjecta Ames, 
from which it differs in the caudate petals and different 
labellum. [Fig. 5: 1, flower spread out X about 3. 2, label¬ 
lum X about 10. 3, column flattened out to show the ter¬ 
minal lobes, much enlarged.] 
Costa Rica, Province of San Jose, La Hondura, Paul 
C. Standley 36517, March 2-4, 1924. 1300-1700 meters alti¬ 
tude. On tree; flowers dark red. (Type in Herb. Ames Xo. 
29145.) 
Pleurothallis cedralensis Ames Sched. Orch. 4 (May 
1923) 18; 7 (1924) 26, t. 6. 
Pleurothallis myrtillus Schltr. in Fedde Repert. Beihefte 
19 (November 1923) 108. 
From the description of the type and from studies of a 
duplicate of the Brenes collection referred by Dr. Schlechter 
3,3 
