NEW OR NOTEWORTHY ORCHIDS 
wide above the base, 2.25 mm. wide above the middle, 
shortly unguiculate, conspicuously 3-nerved, basal half 
much thickened, oblong, with a deep keel on each lateral 
nerve, upper half of the labellum suborbicular, with three 
raised nerves which converge toward the tip. Column 3 mm. 
long, rather slender, with the clinandrium inconspicuously 
dentate. 
Pleurothallis peregrina is closely allied to P. dolichopus 
Schltr., from which it differs chiefly in the form of the 
labellum. 
Costa Rica, Jucosal (?) Purchased in Cartago from a 
native, C. H. Lankester 469, June 30, 1923. Flowers oil- 
green, semitranslucent, sepals lightly hairy, petals and 
column with a central purple line; base of lip with three 
purple striae. (Type in Herb. Ames No. 26956): along the 
cart-road from Vara Blanca (between Poas and Barba vol¬ 
canoes) to La Concordia, William R. Maxon & Alfred D. 
Harvey 8492, July 23, 1923. Mossy tree trunk. Basal half 
of labellum purplish. 1600-1950 meters altitude. 
Pleurothallis propinqua Ames sp. nov. Caules dense 
caespitosi, abbreviati, monophylli. Folium oblanceolatum 
vel spathulatum, apice bilobatum apiculo brevi interjecto. 
Pedunculus cum racemo folium aequans vel breviter super- 
ans, pauciflorus. Sepala lateralia lanceolata, acuminata, 
acutissima, uninervia, extus per medium carinata. Se- 
palum dorsale simile. Petala lanceolata, sepalis later- 
alibus angustiora, acuminata, acutissima, uninervia. Label¬ 
lum lanceolatum, plus minusve incrassatum, acuminatum, 
acutissimum, trinervium, callo transverse prope basim or- 
natum. Columna brevis. 
Roots fibrous, smooth. Secondary stems densely caes- 
pitose, 4-5 mm. long, concealed at the base by a tubular 
scarious sheath, monophyllous. Leaf with the petiole 1.3-2 
cm. long; lamina 2.5-5 mm. wide above the middle, ob- 
lanceolate or spatulate, bilobulate at the apex with a short 
apicule between the lobes, coriaceous. Peduncle with the 
raceme up to 3.5 cm. long, slender, with a closely appressed 
tubular bract near the middle. Raceme 3-6-flowered; 
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