477 
ORCHIDACEjE. (ORCHIS FAMILY.) 
1. L-. cordnta, R. Brown. Leaves round-ovate, somewhat 
heart-shaped (£' long) ; raceme almost smooth; flowers minute , ap¬ 
proximated on pedicels not longer than the ovary; lip linear, twice the 
e ngth of the sepals, 1-toothed on each side at the base, 2-cleft to the 
middle. (Epipactis convallarioides, Pursh , Bigel , not of Swartz .) - 
7\ am P cold woods, northward, not rare. June, July. —Stem 4'-6' 
high. 
2. L. australis, Lindl. Leaves ovate (*/ long) ; raceme loose 
and slender; flowers very small , on minutely glandular-pubescent pedi¬ 
cels twice the length of the ovary; lip linear, slightly arrow-form at the 
base, 3-4 times the length of the sepals, 2-parted, the divisions lin¬ 
ear-setaceous. (L. Eliiottii, Hook, ined .? L. convallarioides, Ell. 
L. cordata, Nutt.) Damp thickets, New Jersey, Penn., and south¬ 
ward. June. 
* * Column longer , arching or straightish. 
3. L. convallarioides, Hook. Leaves oval (or roundish 
and somewhat heart-shaped, Swartz), often acute (V or more long); 
raceme loose, pubescent; flowers on slender pedicels; lip wedge-ob¬ 
long, 2-lobed at the dilated apex, and 1-toothed on each side at the 
base, nearly twice the length of the narrowly lanceolate spreading 
sepals. (Epipactis conv., Swartz.) — Damp mossy woods, Charleston, 
Vermont (with Calypso), Carey; and base of the White Mountains, 
Oakes. June. — Plant 4' - 9' high : lip purplish, nearly long. 
16. CrPRIPEDirm, L. Lady’s Slipper. 
Sepals spreading; the 2 anterior distinct, or commonly united 
into one under the lip. Petals similar but usually narrower, 
spreading. Lip a large inflated sac, somewhat slipper-shaped. 
Column short, 3-lobed, the lateral lobes bearing a 2-celled anther 
under each of them, the middle lobe (sterile stamen) dilated and 
petal-like, thickish, incurved. Pollen pulpy-granular. Stigma 
terminal. — Root of many tufted fibres. Leaves large, many- 
nerved and plaited, sheathing at the base. Flowers solitary or 
few, large and showy. (Name composed of Kirn-pis, Venus , and 
nodiov, a sock or buskin , i. e. Venus's Slipper.) Also called Moc- 
cason-Jlower, 
* Stem leafy , 1 _ 3-flowercd : sepals and the linear wavy-twisted petals 
longer than the lip 1 pointed, greenish shaded with purplish-brown; 
the 2 anterior sepals united into one quite or nearly to the tip. 
1- C. pubcscens, Willd. (Larger Yellow Lady’s Slip¬ 
per.) Sepals elongated-lanceolate ; lip flattened laterally , very convex 
an gibbous above, pale yellow ; sterile stamen (appendage of the col- 
