ORCHIDACEAE) 397 
the pseudobulb, from the base of which arises the flower-stalk. Flowers in a 
raceme or panicle. Perianth mostly showy, the parts often mottled. Lateral 
adin 
sepals slightly inequilateral, reflexed or spreading. Petals often quite similar 
to the sepals. Lip crested, clawless or short-clawed, 3-lobed, the middle lobe 
larger than the lateral ones. Capsule nodding.—Fully 400 species, natives of 
tropical and subtropical i —Spr. 
Leaf-blades flat or nearly so, the faces not united: lateral sepals 
separate. I. UNDULATA. 
Leaf-blades equitant, the faces united : lateral sepals coherent. II. VARIEGATA. 
I. UNDULATA 
AER short and wide, thick-coriaceous and stiff: sepals 
i B obtuse or notched: pseudo bulbs very small 
Or E SO 
Median Ped cuneate : lateral lobes of the lip knob-like. 1. O. undulatum. 
Median sepal with a reniform, orbicular, or ovate blade: 
lateral lobes of the lip broad and flat. 
sa Daae greatly elongate, thin. -coriaceous and pliable: . 
sepals and petals acute or acuminate: a large. 3. O. floridanum. 
to 
. O. carthaginense. 
II. VARIEGATA 
Tufted plant with curved keeled leaves a a slender flower- 
stalk. 4. O. variegatum. 
1. O. undulatum E Salisb. oe 1-2 em. long: leaf-blades Rd 
o 25-60 em. long: flower-stalk 110—220 em. long: perianth mainly 
range mottled with bp MAN eer sepals 
b ov 0 va 
the b pus obovate to cuneate: lip 18— 
wide sule-body 5- long, ellipsoid or 
ecl pe LO. guttatum Reichenb. P 
wd Ani — (W. I., Mez., C. A., 
the sepals, the blade ias lip fully 11-12 
m. long, the jar pe lobe mostly 7-9 mm. wide: 
MuR UE ns lo ee vied -EAGLE ORCHID.)—Hammocks, Cape Sable 
region, Fla (v. T , Mez., C. A., S. A.) 
3. O. floridanum Ames. Pseudobulbs ovoid, 8-12 em. long: leaf-blades linear, 
25—110 em. long: flower-stalk 85—210 E AE perianth mainly yellow mottled 
wn: lateral sepals 15-16 mm. long, the blades elliptie-lanceolate: 
12: iar lip 13-1 
mm. long, the middle lobe 11-13 mm. wide: eapsule-body 2-3 em. long, ellip- 
soid. [O. sphacelatum SE. U. S.]—Hammocks and ra pinelands, 
Everglade Keys and Cape Sable r region, Fla.—(W. I., Mea. Pu S. re 
Typically an epiphytic mete plant. R arely a terrestrial i in pine ands on are 
where at no remote date hammocks cee The hammock plants ns Media 
larger leaves, but the uc. from the two habitats are identical in structure. 
4. O. variegatum (Sw.) Willd. Pseudobulb minute or slender: leaf-blades 
curved, 3—7 em. long, 2-keeled above: flower-stalk 9-35 em. long: peri d 
mainly white and greenish marked with purple and brown: lateral sepa di 
mm. UE the blades spatulate; petals about 8 mm. long, the blades Ru 
or orbieular-obovate: lip 10-12 mm. long, the middle lobe 15-21 mm. wide: 
UR body ellipsoid, 7 5-2 em. long Mur un S pen. Fla.—(W. I.) 
