NEW OR NOTEWORTHY ORCHIDS 
beneath; lamina up to 12 mm. long, 5.5-6.5 mm. wide, much 
exceeding the inflorescence. Peduncles fasciculate, abbre¬ 
viated, about 4 mm. long, partly concealed by sheaths, 
1-flowered. Flowers dark red-purple. Lateral sepals free 
almost to the base, forming a distinct mentum with the blunt 
foot of the column, 3.25 mm. long, about 1 mm. wide, ovate- 
oblong, subacute, thickened near the tip, conspicuously 
3-nerved, glandular-ciliate on the margin and sparsely 
glandulose on the inner surface. Dorsal sepal 3.25 mm. long, 
1.75 mm. wide, ovate from a broad base. Petals 2.25 mm. 
long, narrowly lanceolate, 1-nerved, margin distinctly glan¬ 
dular-ciliate. Labellum 2.5 mm. long, about .5 mm. wide, 
densely glandulose on the upper surface, narrowly lingui- 
form; margin of the upper half deflexed, glandulose-ciliolate; 
margin of the basal half more or less erect, conspicuously 
glandular-ciliolate. Claw abbreviated, equaled (on each 
side) by an auriculiform introrse lobule formed by the base 
of the expanded portion of the labellum; in front of the claw 
there is a conical, glandulose, callus-like thickening which is 
evanescent into rather inconspicuous ridges which wholly 
disappear near the middle of the lamina. Column 2 mm. 
long, produced into a blunt-tipped foot, dilated upward, 
with the clinandrium 5-toothed, the teeth ragged-fringed. 
Allied with Pleurothallis abjecta Ames, from which it is 
clearly separable by its abbreviated peduncle and very dif¬ 
ferent petals. [Fig. 5: 1, column flattened out to show the 
terminal lobes X 11. 2, labellum X about 10. 3, petal X 
9 }/ 2 - 4, flower with the perianth segments spread out X 6.] 
Costa Rica, Province of Cartago, El Muneco, south of 
Navarro, Paul C. Standley 33888, February 8, 9, 1924. 
About 1400 meters altitude. On tree; creeping; leaves pur¬ 
ple-bronze, especially beneath; flowers dark red-purple. 
(Type in Herb. Ames No. 29163.); Standley 33865, from the 
same locality as the type, appears to be the same species. 
Pleurothallis quinqueseta Ames sp. nov. Herba nana, 
caespitosa. Inflorescentia laxiflora, folium excedens. Sepala 
petalaque in caudas perlongas producta. Petala in margine 
