NEW OR NOTEWORTHY ORCHIDS 
pubescent, borne alternately on the rhizome, monophyllous. 
Leaf very fleshy, 6 mm. long more or less, 4-5 mm. wide, 
elliptical or orbicular, rugulose, approximate. Flowers soli¬ 
tary. Peduncle about 3 mm. long, densely glandular- 
pubescent, apparently arising from the rhizome at the base 
of a secondary stem. Lateral sepals about 6 mm. long, 2 mm. 
wide, narrowly elliptical, cohering almost to the apex, 
strongly concave, glandular-pubescent on the outer surface, 
obtuse. Dorsal sepal 5 mm. long, about 3 mm. wide near 
the middle, elliptic-ovate, subacute, 3-nerved, densely 
glandular-pubescent on the outer surface. Petals 4 mm. 
long, 1 mm. wide, oblong, acute, 3-nerved, somewhat glandu¬ 
lar on the inner surface of the upper half. Labellum simple, 
4 mm. long, 1.25 mm. wide above the middle, oblong, slightly 
dilated near the tip, rounded al the apex into a blunt point, 
smooth beneath, densely glandular above and on the margin, 
with the glandular excrescences directed forward. Column 
3.5 mm. long, slender, toothed at the summit. 
A close ally of the Cuban Pleurolhallis nummularia 
Heichb. f., which is in part distinguished by the longer, 
more slender peduncles. 
Costa Rica, Peralta, C. H. Lankester 465. Sepals 
villose, hyaline, pale yellowish stained with purple; petals 
pale yellowish; lateral sepals and labellum interiorly 
blotched with deep maroon. Column pale green-yellow. 
Leaves dull yellow-green. (Type in Herb. Ames No. 26929.) 
Pleurothallis peraltensis Ames sp. nov. Rhizoma 
valde abbreviatum. Caules secundarii caespitosi, erecti, 
vaginis hispidulis omnino obtccti. Vaginae elongatae, tu- 
bulatae, in apicem dilatatum ovato-lanceolatum hispidulum 
productae. Folium elliptico-lanceolatum, apice bidentatum, 
racemo mulLo longius. Pedunculi fasciculati, ex axilla 
folio rum orientes. Racemus pauciflorus. Sepala lateralia 
vix usque ad medium cohaerentia, ligulala, carnosa, obtusa 
vel subacuta, extus per medium carinata, margine bene 
ciliata, trinervia. Sepalum dorsale lanceolatum, valde con- 
cavum, margine ciliata. Petala oblonga, usque ad basim 
leviter altenuata, valde membranacca, margine inacqualiter 
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