TROPICAL AMERICAN ORCHIDS 
scure verrucosae, inter se distantes. Flores in genere mi- 
nores, e bracteis imbricantibus orientes. Sepala lateralia el- 
liptico-lanceolata, acuta, subcoriacea, purpureo-tincta, apice 
reflexa. Sepalum dorsale quam sepala lateralia angustius, 
oblongum, acutum. Petala albida, oblonga, acuta, mem- 
branacea, reticulato-nervosa. Labellum albidum, antice pro- 
, funde retusum, margine valde crenulato-denticulatum, cir- 
cuitu late ovatum, obtusum; discus glaber. Columna 
arcuata, antice conspicue canaliculata. 
Stems about 4 dm. long, with closely appressed tubular 
lightly verrucose sheaths. Leaves distantly alternate, two 
to three, 5-16 cm. long, up to 6 cm. wide, coriaceous, sessile 
on a clasping vaginate base, elliptic or elliptic-lanceolate, 
acuminate, acute, obliquely ascending, the uppermost one 
often much reduced and closely subtending the inflorescence. 
Flowers arising from an abbreviated cluster of closely im¬ 
bricating bracts. Lateral sepals tinged with purple, hardly 
2 cm. long, 8 mm. wide, lleshy, elliptic-lanceolate, acute, 
with the apex sharply reflexed, somewhat carinate on the 
dorsal surface. Dorsal sepal narrower than the laterals, 
2.2 cm. long, about 6 mm. wide, oblong, acute. Petals white, 
membranaceous, 1.7 cm. long, 4.5 mm. wide, oblong, acute, 
rcticulate-nerved. Labellum about 1.3 cm. long, 1.6 cm. 
wide near the base, embracing the column, ovate in outline, 
deeply retuse at the apex, margin crenulate-dentate with 
blunt coarse teeth. Disc smooth. Column about 1.2 cm. 
long, arching, dilated upward, widely sulcate in front. 
Costa Rica, Peralta, C. //. Lankester 538. Sepals 
faintly purplish, semi-hyaline; petals and labellum white. 
4000 feet altitude. (Type in Herb. Ames No. 27750.) 
Triphora cubensis (Reichb. /.) Ames comb. nov. 
Pogonia cubensis Reichb. f. in Nederl. Kruidk. Arch. 4 
(1858) 322 (by typographical error as rubensis). 
This rare and sparsely distributed species is now 
known to be a native of Florida. 
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