CENTRAL AMERICAN ORCHIDS 
an orbicular bilobed lamina which is 2 mm. wide across 
the middle, margin glandulose-ciliate; lobes triangular, 
acute, smooth on their opposed edges. Dorsal sepal 2 mm. 
long, 1.5 mm. wide, semielliptic or oblong, acute, 3-nerved, 
the nerves prominent on the outer surface and minutely 
glandular. Petals transversely elliptical, 2 mm. wide, 
hardly .5 mm. long, posterior portion about equal to the 
anterior portion, margin finely ciliolate. Labellum 3-lobed, 
1 mm. long; lateral lobes narrowly transversely elliptical, 
appressed to the column, fleshy, ciliolate; middle lobe por- 
rect, ciliolate. Column 1 mm. long, dilated upward; clinan- 
drium entire. Pollinia two. 
Not unlike Lepanthes pristidis Reichb. f. in habit, but 
with differently formed petals and labellum. Clearly 
distinguished from L. fimbriata Ames by the smaller flowers 
and abbreviated peduncles. 
Costa Rica, Cartago, La Murta, C. //. Lankester 349. 
Under side of leaves dark green stained with maroon, up¬ 
per surface ivy-green (Ridgway). Sepals semitransparent, 
greenish, petals bilobed, orange, edged anteriorly with 
rhodomine-purple (Ridgway). Labellum of the same color, 
concealing the column. 5500 feet altitude. (Type in Herb. 
Kew.): Alto de Ochomogo, Tonduz (Herb. Instit. physico- 
geogr. nat. costaricensis No. 10387^), December 1896. 
1550 meters altitude. (In U. S. Nat. Herb. No. 815046, 
mingled with the type of Lepanthes fimbriata Ames.) 
Lepanthes tridens Ames sp. nov. Radices fibratae, 
graciles. Caules secundarii graciles, caespitosi, erecti vel 
ascendentes, vaginis tubulatis obtecti, monophylli. Vaginae 
stramineae, plus minusve decern, minute glandulosae, inter se 
satis distantes, apice in laminam lanceolatam acutam mar- 
ginatam dilatatae. Folium anguste lanceolatum, elongatum, 
apice longe tridentatum, in sicco purpurascens. Pedunculi 
quam folium multo breviores. Racemus abbreviatus, usque 
ad octoflorus. Pedicelli distichi. Flores parvi, succedanei. 
Sepala lateralia usque ad medium cohaerentia, margine 
ciliato-glandulosa, ovata, acuminata, binervia, laminam late 
ovatam bilobatam formantia, in textura valde mem- 
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