TROPICAL AMERICAN ORCHIDS 
rotundata. Sepalum dorsale lanceolato-ovatum, acutum. 
Petala linearia, sepalis breviora. Labellum hastato-cor- 
datum, basi conspicue auriculatum, prope apicem utrin- 
que leviter constrictum. Gynostemium minutum. 
Plant very small, 7.7 cm. tall including the swollen 
ovoid base about 8 mm. long, bearing a single leaf and an 
enveloping sheath. Leaf sheathing the stem by a long pet¬ 
iole which is scarious, about 2.2 cm. long; blade elliptic- 
ovate, spreading, about 3.2 cm. long, 1.5 cm. wide, obtuse or 
acutish at the apex, narrowed at the base, many-nerved with 
seven more conspicuous nerves, the mid-nerve sulcate above 
and prominently carinate beneath. Scape slender, glabrous, 
4-winged. Raceme short, erect, terminal, 2 cm. long, about 
12-flowered. Floral bracts lanceolate-triangular, acuminate, 
apparently hyaline, concave near the base. Lateral sepals 
very obliquely elliptic-ovate, about 3.3 mm. long, about 
2 mm. wide, rounded at the apex, narrowed below to a base 
which is very shortly connate with the paired sepal, 
3-nerved. Dorsal sepal lanceolate-ovate, 3.5 mm. long, 2 mm. 
wide below, acutish, 3-nerved. Petals narrowly linear, grad¬ 
ually broader toward base, about 3 mm. long, 1-nerved. 
Labellum hastate-cordate, conspicuously retrorse-auriculate; 
auricles triangular-rounded, about 1.8 mm. long; lamina tri¬ 
angular, 3.5 mm. long, acute or obtuse, with a slight con¬ 
striction near the apex on each side, 5-nerved. Column 
minute, apparently bilobed. 
Malaxis pusilla seems to be without near allies. [Plate 
23; habit slightly enlarged. 1, petal X 6. 2, flower, front 
view X about 4.] 
Cuba, Sur de Oriente y Pico Turquino, Sierra Maestra, 
Hno. Leon 10762, July 1922. (Type in Herb. N. Y. Bot. 
Card.) 
Physosiphon minutiflorus A. & S. sp. nov. Herba 
epiphytica. Caules vaginis scariosis omnino obtecti, mono- 
phylli. Folium erectum, oblongum, obtusum, coriaceum. 
Inflorescentia densiflora, secunda. Flores minutissimi. Se- 
pala parte inferiore connata, partibus liberis ovato-lanceola- 
tis. Petala multo minora, lanceolata. Labellum in circuitu 
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