NEW OR NOTEWORTHY ORCHIDS 
and longer fringe on the margin. It is also closely allied to 
P. brevis Schltr., another Costa Rican species of the Le- 
pantheformes section of the genus, but appears to differ from 
it in the flowers being entirely glabrous on the outer surface, 
in the column being conspicuously lacerate on the margin 
of the clinandrium, and in the ovary being glabrous and not 
at all hispidulous in any of the flowers examined. [Fig. 7: 1, 
column flattened out to show apical lobes X 10. 2, labellum 
X 13. 3, petal X 10 Yi- 4, dorsal sepal, petals and column 
X 6 Y- <5, lateral sepals X 7. 6, raceme X about 4.] 
Costa Rica, Province of Cartago, El Muneco, south of 
Navarro, Paul C. Standley 33607 (Type in Herb. Ames No. 
29143.), 33796, February 8, 9, 1924. About 1400 meters 
altitude. Flowers dark red and greenish. 
Pleurothallis strumosa Ames sp. nov. Herba dense 
caespitosa, pusilla. Caules secundarii abbreviati, mono- 
phylli. Folium in petiolum brevem contractum, ellipticum 
vel elliptico-lanceolatum, apice minute tridenticulato. Pe- 
dunculus folium superans, gracilis, apice bracteoso. Flores 
succedanei, fasciculati. Sepala lateralia valde caudata, ob- 
longo-lanceolata, binervia, extus nervis glandulosis, in mar- 
gine conspicue glandulosa. Sepalum dorsale simile, tri- 
nervium. Petala lanceolata, uninervia, in margine sparse 
fimbriata. Labellum breviter unguiculatum, trinervium, 
antice linguiforme, prope basim utrinque obscure auricu- 
latum, margine inconspicue glanduloso, prope basim late 
bicarinatum, carinis triangularibus. Columna gracilis, apice 
cucullato, basi in pedem bilobum glandulosum strumosum 
producta. 
Roots whitish, fibrous, smooth. Rhizome abbreviated. 
Secondary stems densely caespitose, about 6 mm. long, 
slender, partly concealed by an elongated tubular sheath, 
monophyllous. Leaf shortly petioled, 14 mm. long, 4-5 mm. 
wide, with the lamina very fleshy, elliptical or elliptic-lanceo¬ 
late, lightly marginate, tridenticulate at the apex. Peduncle 
slender, elongated, much exceeding the leaves, up to 2.6 cm. 
long, with a closely oppressed tubular bract near the middle 
41 
