TROPICAL AMERICAN ORCHIDS 
quadratum, apice rotundatum, medio callo bilobalo orna- 
tum. 
Plant small, caespitose, 4-6 cm. tall. Roots numerous, 
fibrous, tlexuous, glabrous. Secondary stems very short, 
1-17 mm. long, monophyllous, concealed by one to three 
loose imbricating infundibuliform sheaths which waste away 
in anthesis. Leaves erect (the young leaves much smaller 
than normal), elliptic to oval, distinctly short-petioled; 
petiole 2-4 mm. long, channelled; blade (of mature leaves) 
21-39 mm. long, 14.5-18 mm. wide, very thick and fleshy in 
the alcoholized specimens, acute or obtuse at the minutely 
bilobed apiculate tip, rounded or subcuneate at base, sharply 
sulcate down the middle of the upper surface, somewhat cari¬ 
nate beneath, especially near the tip. Inflorescences one to 
four (usually three), much shorter than the leaf, only one 
of the clusters of racemes flowering at a time, 1.5-2.5 cm. 
long, very densely distichous-flowered. Floral bracts minute, 
infundibuliform. Flowers minute. Sepals minutely papil¬ 
lose within, 3-nerved. Lateral sepals oval or suborbicular- 
ovate, about 1.7 mm. long, abruptly acute, conspicuously 
carinate without. Dorsal sepal very similar. Petals very 
minute, quadrate-flabellate, about .8 mm. long, 1 mm. wide, 
broadly truncate, lightly retuse and somewhat thickened at 
the apex, 1-nerved. Labellum about .9 mm. long, ovate- 
quadrate in outline with erect sides, a fleshy bilobed trans¬ 
verse thickening in the middle, broadly rounded or subtrun¬ 
cate at the apex, 3-nerved. Column stout. 
Stelis minutiflora is allied to 5. costaricensis Reichb.f., 
but lacks the mucronulate petals and acute basally bicallose 
lip of that species. 
Costa Rica, Cartago, Raventado, C. H. Lankester 522. 
5500 feet altitude. Flowers pale greenish yellow. (Type in 
Herb. Ames No. 28774.) 
Restrepia filamentosa A.& S. sp. nov. Herba gracilis. 
Caules monophylli, vaginis scariosis omnino obtecti. Fo¬ 
lium anguste ellipticum, coriaceum, in sicco erectum. Flos 
fiavidus, rubro-striatus. Pedicellus tuberculo filiformi con- 
spicuo praeditus. Sepala lateralia dimidio basali connata. 
19 
