NEW OR NOTEWORTHY ORCHIDS 
ceolatum, obtusum. Petala sepalo dorsali leviter adhae- 
rentia, oblique lanceolata. Labellum erectum, valde sac- 
catum, expansum reniformi-ovatum, intus papillosum. 
Plant terrestrial in swamp, slender, about 49 cm. tall 
to the tip of the inflorescence. Roots tuberous, fascicled, 
numerous. Leaves basal, linear-lanceolate or linear-oblan- 
ceolate, long-petioled, erect; lamina 5.3 to over 7 cm. long, 
up to 8 mm. wide, acute, gradually narrowed to the petiole, 
mid-nerve sulcate above and sharply carinate beneath; 
petiole slender, about 9.6 cm. long or less, clothed at base 
with 1 or 2 loose tubular scarious sheaths. Stem up to the in¬ 
florescence 43-44 cm. long, glandular-hairy especially above, 
with about 5 remote tubular scarious sheaths and above 
them a very small foliaceous blade. Inflorescence a lax 4- 
to 8-flowered raceme with strict glandular ovaries. Floral 
bracts ovate, 9.9 mm. long, acuminate, concave, glabrous, 
glandular-ciliate, sheathing the lower half of the pedicellate 
ovary. Flowers small, inverted as in the genus. Sepals 
sparsely glandular-pubescent near the margins on the outer 
surface especially at the apex. Lateral sepals obliquely 
ovate, 6 mm. long, about 4 mm. wide when spread out, acu¬ 
minate, concave with strongly involute margins, 3-nerved. 
Dorsal sepal pendent, lanceolate, 7 mm. long, 2.6 mm. 
wide, gradually narrowed to an obtuse tip, 3-nerved. Petals 
lightly adherent to the dorsal sepal, obliquely lanceolate, 
with the upper part rather abruptly narrowed, 7 mm. long, 
2 mm. wide near the middle, obtuse or truncate at the 
apex, margins of the basal half sparingly glandular-ciliate, 
1-nerved. Labellum in natural position strongly saccate, 4.9 
mm. long, apex recurved; lamina when forcibly expanded 
reniform-ovate, about 6 mm. long, 9 mm. wide, obtuse, cor¬ 
date at base, fleshy, densely cellular-papillose on the inner 
surface with an irregular band of larger warts near the lateral 
margins, 5-nerved with the side nerves much branched. 
Column minute; rostellum simple, sharply pointed. Anther 
cordiform. 
Pterichis costaricensis, which belongs to a genus unre- 
ported from Central America, has two rather close allies. 
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