CENTRAL AMERICAN ORCHIDS 
albidae. Folia articulata, erecto-patentia, basi vaginis 
amplectentibus obtecta, anguste lineari-lanceolata vel ob- 
longo-lanceolata, acuminata, acuta, basim versus sensim 
angustata. Inflorescentia ex axillis vaginarum, uniflora, 
pedunculo gracili paucivaginato. Ovarium valde trialatum. 
Sepala lateralia deflexa, valde curvata, anguste oblonga, 
utrinque angustata, acuta, in sicco valde nervosa. Sepalum 
dorsale simile. Petala sepalis latiora, late oblanceolata, 
obtusa, in sicco valde nervosa. Labellum antice obscure 
trilobatum, basi rotundatum, concavum, margine undu- 
latum, in circuitu quadrato-ovatum, obtusum, callo plus 
minusve membranaceo apice bilobato ornatum. Callus 
utrinque bidentatus, apice bilobato libero. Columna 
elongata. 
Epiphytic herb up to 23 cm. tall from the base to the 
tip of the longest leaf. Roots elongated, about 2 mm. thick, 
whitish, smooth, spreading. Leaf-bases equitant, 2-3.5 cm. 
long. Leaves articulated, up to 19 cm. long, L5-2.5 cm. 
wide near the middle, narrowly lanceolate, acuminate, acute, 
membranaceous, pliable, nervose when dry. Peduncles 
from the axils of the leaves, about 13 cm. long, few-bracted. 
Flower solitary. Pedicel with the ovary 2 cm. long. Ovary 
conspicuously 3-winged. Lateral sepals 2.7 cm. long, about 
5 mm. wide, narrowly oblong, narrowed toward both ends, 
acute, deflexed, spreading. Dorsal sepal similar, erect. 
Petals 2.5 cm. long, 9-10 mm. wide near the middle, obtuse, 
broadly oblanceolate, erect. Labellum 2.5-3 cm. long, about 
2 cm. wide when spread out, broadly ovate in outline, ob¬ 
scurely 3-lobed in front with the margin undulate, strongly 
concave at base. Disc smooth, with a partly free mem¬ 
branaceous plate or callus which is deeply bilobed at the 
tip with two small, blunt teeth on each side. Column about 
12 mm. long. Pollinia four. 
In habit closely resembling Chondrorrhyncha Endresii 
Schltr. and C. Reichenbachiana Schltr. From the former it 
differs conspicuously in having the disc smooth in front of 
the callus. From C. Reichenbachiana it is separable in 
having a distinctly bilobed callus which does not extend 
laterally to the margins of the labellum. 
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