TROPICAL AMERICAN ORCHIDS 
clasping base; blades ovate to elliptic-ovate, 8.5-9.5 cm. 
long, 4.2-5 cm. wide (the uppermost 6.15 cm. long, 2.6 cm. 
wide), oblique, abruptly acute, rounded at base, membrana¬ 
ceous, 11-nerved with five of the nerves more conspicuous. 
Inflorescence short, dense, about 5 cm. long, 4 cm. across 
in the dried specimen. Floral bracts 3.7 cm. or less long, 
the lower far surpassing the flowers, lanceolate, acuminate. 
Ovary and lower part of the flower densely pubescent out¬ 
side. Perianth segments parallel below and somewhat spread¬ 
ing above. Sepals all connate throughout their lower half. 
Lateral sepals about 1.9 cm. long, fleshy; free portion tri¬ 
angular-lanceolate, 1 cm. long, complicate at the tip, dor- 
sally carinate, 3-nerved. Dorsal sepal similar, thinner, with 
an obtuse tip. Petals adherent to the dorsal sepal and con¬ 
nate with it at the base; free part about 12 mm. long, 2 mm. 
wide above the middle, obliquely spatulate-linear, little 
shorter than the dorsal sepal, acutish, 3-nerved, membrana¬ 
ceous below, thickened above. Labellum lanceolate, simple, 
gradually dilated near the middle, 1.5 cm. long, 5 mm. wide 
where broadest, with a pair of flattened auriculate calli at 
the base, shortly pubescent near the base, obtusely acute 
at the apex, with the forward margins irregular. Column 
about 9 mm. long (measured dorsally to the tip of the anther), 
anterior face closely pubescent; rostellum stiff, the apex 
linear-triangular, 3 mm. long. Anther linear-oblong, sur¬ 
passing the rostellum. 
Stenorrhynchus bracieosus is allied to 5. speciosus (Jacq.) 
L. C. Rich., but differs in its ovate leaves, very long floral 
bracts, and pubescent upper portion of stem rachis and 
ovaries. It is distinct from S. cernuus Lindl. in its bracts, 
which far exceed the flowers, and in its sessile lip. [Plate 
21: habit one-half natural size. 1, petals with dorsal 
sepal X 1 2, column with anther X 2 3^. 5, labellum 
X 1 3^. 4, lateral sepals X 2.] 
Costa Rica, Santa Clara de Cartago, C. H. Lankester 
572, December 23, 1923. 7000 feet altitude. “A fairly com¬ 
mon terrestrial—also north of Cartago on slopes of Irazu.” 
Flowers Coral Red [Ridgway], lip yellow. Bracts brick 
red. (Type in Herb. Ames No. 28122.) 
