NEW OR NOTEWORTHY ORCHIDS 
Labellum trilobatum; lobis lateralibus angustatis, post 
columnam extendentibus; lobo medio gracili, ciliato. Col- 
umna brevis, superne dilatata. 
Epiphytic, caespitose herb. Roots fibrous, smooth. 
Secondary stems 2.5-3.5 cm. long, slender, concealed by 
elongated sheaths, monophyllous. Sheaths about six, 6 mm. 
long, sparsely hispidulous, with the bristles elongated, di¬ 
lated at the apex into an ovate marginate hispidulous- 
margined lamina. Leaf 1.5-2.4 cm. long, up to 8.5 mm. wide, 
coriaceous, elliptical, abruptly contracted near the end, 
forming a rostrate tip which is tridentate at the apex. 
Peduncle about 2.8 cm. long, about twice longer than the 
leaf, terminating in a short loosely few-flowered somewhat 
flexuose raceme. Bracts of the raceme tubular, smooth. 
Ovary conspicuously 6-winged. Lateral sepals 1.6 cm. long, 
forming a lanceolate bifid 6-nerved lamina which is about 
6 mm. wide at the base; free portion of each sepal 8 mm. 
long, 2 mm. wide at base, oblong, the interior margin — 
below the apex — protuberant, apex itself shortly caudate, 
the abbreviated tail about 1 mm. long. Dorsal sepal 1.3 cm. 
long, about 4 mm. wide, ovate-lanceolate, strongly concave, 
prolonged into a slender caudate tip. Petals transversely 
linear-oblong, apiculate, about 5 mm. wide, scarcely 1 mm. 
long, oppressed to the sides of the column, the posterior 
portion longer and broader than the anterior. Labellum 
trilobed; lateral lobes 2 mm. long, about .5 mm. wide, un- 
guiculate from about the middle, narrowly elliptical, the 
basal portion obliquely spreading and prolonged behind the 
column, the anterior portion inclined obliquely inward in 
front of the column; middle lobe an inconspicuous filiform 
densely glandulose appendage, thickened at the tip. Column 
2 mm. long, dilated upward. 
It differs from Lepanthes Chameleon Ames in having 
eciliate sepals. L. horrida Reichb. f. is a close ally of L. 
rostrata, but differs conspicuously in having all of the sepals 
candate, a dissimilar labellum and hispidulous petals. 
Costa Rica, Cascajal, C. H. Lankester 59. Flowers 
large on long peduncles, semi-transparent, stained with red. 
5500 feet altitude. (Type in Herb. Kew.) 
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