TROPICAL AMERICAN ORCHIDS 
Maxillaria foliosa appears to be without close allies, 
but somewhat resembles M. microphyton Schltr. in habit. 
Costa Rica, Peralta, La Union, C. H. Lankester 478. 
3000 feet altitude. Flower pale yellow-green. (Type in 
Herb. Ames No. 27204.) 
Maxillaria longipetiolata A. & S. sp. nov. Herba 
acaulis. Rhizoma verisimiliter abbreviatum. Pseudobul- 
bus ovoideus, monophyllus. Folium lineari-lanceolatum, 
longe petiolatum. Flos singulus, ruber. Sepala oblonga. 
Petala linearia. Labellum trilobatum, quam sepala brevius, 
medio callo ornatum. Columna generis. 
Rhizome apparently abbreviated. Pseudobulb about 
2.5 cm. long, ovoid, monophyllous. Leaf linear-lanceolate, 
long-petioled; petiole about 3.8 cm. long, slender, channelled; 
blade 16 cm. long, 1.9 cm. wide across the middle, acuminate 
toward the apex, cuneate-narrowed at base, subcoriaceous. 
Flower solitary; perianth segments rigid-nervose. Lateral 
sepals 1.8 cm. long, about 5.8 mm. wide near the base, lan¬ 
ceolate-oblong, acute, apical margin involute. Dorsal sepal 
similar, slightly shorter and narrower. Petals about 1.5 cm. 
long, 3.1 mm. wide above the middle, linear, oblique near the 
apex, acute. Labellum distinctly 3-lobed above the middle 
with the lateral lobes erect in natural position, 1.41 cm. long, 
about 8 mm. wide across the middle of the basal elliptical 
portion when spread out, traversed by a longitudinal thick¬ 
ened band ending in a callus; lateral lobes (free portion) 
small, about 1 mm. long, 1.5 mm. wide, rounded, thickened 
below the apex; middle lobe Ungulate from a broad base, 
about 5.9 mm. long, 3.5 mm. wide across the middle, thick¬ 
ened, but with a membranaceous margin above, apparently 
lightly retuse. Column rather small, 7 mm. long, flattened 
in front with a short but conspicuous foot. Anther yellow. 
Maxillaria longipetiolata is allied to M.curtipes Hook, f., 
but the sepals appear narrower, the lip sharply 3-lobed, and 
the flower different in color. 
Panama, Hill east of Corozal, C. W. Powell 307. 
Flowers in June. Sea level. Flowers Indian Red [Ridgway], 
61 
