ORCHIDACEAE l 375 
12. POGONIA Juss. Caulescent herbs, with cord-like roots. Leaves 
usually solitary or 2 on the stem. Flowers solitary or 2 Sun ether. Perianth 
mainly pink, rose, or lilac. Sepals nearly 
equal, slightly longer than the petals. 
Petals broader than the sepals. Lip 
fringed at the dilated apex, with a papil- 
lose crest on the face. Capsule erect.— 
One species 
: P. pi are E Ker. Ste 
tall: des the eine 
eave and bracts green, ne -lanceolate 
elliptic, 3-8 cm. long: lateral sepals 
linear bar d or narrowly oblong, 15- 
20 long, acute: petals elliptic or 
oim cuneate, 14-16 m m. long, obtuse: 
lip longer than the po pound Es 
the rounded apex.—(ETTERCAP. CRES 
TERCAP. ROSE CRESTED-ORCHID. ud E flat woods, and damp prairies, 
various provinces, Fla. to Tex., Minn., and New pr. 
13. CLEISTES L. C. Rich. Caulescent rather succulent herbs, with eord- 
like roots. Leaves 1 or 2 on the stem, but usually solitary. Flowers mostly 
1 or 2, somewhat nodding, the braet or oak foliaceous. Perianth mainly 
brown and pink. Sepals various, the lateral ones much narrower than the 
median. Petals nearly like the lateral sepals. Lip erose on the edges, the 
apical lobe with a median and 2 lateral BM Capsule erect.—One species. 
1. C. divaricata (L.) Ames D. (md dm. tall: blades of the cauline leaves 
line r nea 
attenuate, brownish: etals narrowly 
PA to ae od 20—35 mm 
pi : 
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£5 
re t 
maintained a foothold in the mountains. 
In the level lowlands of the oue regions it oceurs in such abundance as to 
form seas of pale rose. There are several forms in the Coastal regions show- 
ing much variation in the size of the perianth and of its parts. 
14. ISOTRIA Raf. Scapose herbs, with elongated roots. Leaves reduced 
to scales at the base of the scape. Scape topped by a whorl of 5 or 6 spread- 
ing leaf-like bracts. Flowers solitary or 2 together. Perianth purple or green- 
ish. Sepals nearly equal, much longer than the petals. Petals broader than 
the sepals. Lip 3-lobed at the apex, sessile, crested along the middle. enims 
erect.—Two species, the following and one in the northeastern State 
