NEW OR NOTEWORTHY ORCHIDS 
nute, very membranaceous and inconspicuous, suborbicular 
in outline, irregularly and deeply lacerate-fimbriate, 1 mm. 
long, nerveless. Labellum sharply reflexed in the middle in 
natural position with the anterior portion convex, when ex¬ 
panded spatulate-lingulate, about 3 mm. long, 1.8-2 mm. 
wide across the anterior part, rounded at the apex, minutely 
biauriculate at the base with auricles equaling the short 
claw, ciliate except at base, the lateral margins long-ciliate. 
Disc with a prominent gnomon-like ridge running from the 
basal part nearly to the middle. Column slender, broadly 
bialate, the lateral lobes of the wing short triangular-denti¬ 
form, terminal lobe broadly rounded and long-fimbriate, 
nearly 3 mm. long including the apical ciliations; foot stont, 
conspicuous. 
Pleurothallis minutipetala resembles P. Purpusii Schltr. 
vegetatively, but it has quite dissimilar perianth-segments. 
It differs from P. villosa Knowl. & Westc. in the suborbicular 
petals and semi-free lateral sepals. Its narrower leaves, dis¬ 
similar petals and lip separate it from P. Blaisdellii S. Wats. 
The description was made from a dried plant. 
Costa Rica, Bosque de C. Laguna, A. M.Brenes {102) 
432, November 7, 1922. 1190 meters altitude. (Type in 
Herb. Ames No. 31111.) 
Pleurothallis ovatilabia A. Sc S. sp. nov. Herba 
Pusilla, caespitosa. Caules perbreves, monophylli. Folinm 
oblanceolato-spathulatum, in petiolum satis longum sensim 
nngustatum. Pedunculi singuli, folia subaequantes vel su- 
perantes. Racemus brevis. Flores minuti. Sepala ovata, 
subacnta, uninervia. Petala lineari-lanceolata, subacuta. 
Labellum ovatum, dense papillosum. Columna crassa, 
brevissima. 
Plant small for the genus, 5.5-7 cm. tall, caespitose. 
Roots filiform, flexuous, glabrous. Stems very short, 4-6 
®ni. long, entirely concealed and snrpassed by several loose 
scarious imbricating sheaths. Leaf oblanceolate-spatulate, 
gradually narrowed to a rather long petiole; lamina about 
2-4 cm. long, up to 6 mm. wide, minutely bilobed and 
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