ORCHIDACEAE 393 
Lateral sepals mostly narrow and shorter than the median one. Petals much 
smaller than the sepals. Lip relatively small, 
with 2 large lateral lobes and a very sma - 
dle lobe. da nodding.—Seven species, in 
tropical Amer 
. pygmaeum (Hook.) Benth. & Hook. Stems 
scaly with old leaf-bases: leaf-blades elliptic or 
nearly so, 2.5—7.5 em. long: perianth, except the 
lip, green: sepals acuminate, the lateral ones 
5— 
li 
with rose, the lateral lobes ovate or oval: capsule- 
body 12-15 mm. long, winged. [H. tripterum 
(Brongn.) Cong. Eo e S pen. Fla.— 
(W. I., Mex., C. A., S. A.) 
3. BASIPHYLLAEA Schlechter. Caulescent herbs, with clustered fleshy 
tubers. Leaves various, the basal ones with firm narrow plicate blades, the 
cauline mere A e scales. Flowers erect, several, ipid to scale-like 
bracts. Peria mainly rose-purple. Sepals nearly equal, r than the 
petals. ci phos narrower than the sepals. Lip short, E slightly 
Capsule erect. [Carteria Small, not Franzé]— 
‘Two species in Florida and the West Indies. 
1. B. corallicola (Small) Ames. Stem 2—3.5 dm 
tall: basal leaves 2-7 em. long; blades oe 
linear, narrowed at both ends: flow 
ro sepals linear-lanceolate to broadiy linear, 
-7.5 mm. long: lip oval to orbicular-oval, 6— 
aJ 
m. long, h middle lobe much larg han the 
lateral pas Cona t seen mature. al- 
licola Smal 1) Rocky Pinelands,  Everglade 
Keys, Tle —(W. I)—Wi nt.—Although the 
plants are apparently pouce they bloom only 
at intervals of several y 
44. POLYSTACHYA Hook. Epiphytie herbs. Leaves several, approxi- 
mate at the base of the flower-stalk. Flowers in a terminal panicle. Perianth 
mainly yellow. Lateral sepals broad, adnate to 
the long column-foot. Petals narrow. Lip di- 
lated, 3-lobed, jointed to the column-foot, folded 
up against the edges of the lateral sepals. Cap- 
sule nodding.—About 170 species, mostly of 
tropical regions. 
1. P. minuta (Aubl.) Britton. Stem 1-6 dm 
ca blades of X lower reps leaves elliptic 
