2 C. odontorhiza Nutt. Lip undivided, oval, obtuse, crenulate, spotted; spur none; capsule oblong or subglobous. - A singular plant, with no leaves or green herbage, inhabiting old woods, Can. to Car. and Ky. The root is a collection of small, fleshy tubers, articulated and branched much like coral. Scape 9 - 14' high, rather fleshy, striate, smooth, invested with a few long, purplish-brown sheaths. Flowers 10 - 20, in a long spike, of a brownish-green. Lip white, generally with purple spots. Capsules large, reflexed, strongly ribbed. Jl., Aug.

3 C. innata R. Brown. Scape few-flowered; lip oblong, angularly 2-toothed towards the base, spotless, deflexed above; spur none or obsolete, caps, elliptic-obovoid, reflexed. - Rich damp woods, N. States and Can., rare. Scape not bulbous at base, 5 to 8' high. Fls. 5 to 10, dull purple, with a white lip. May, Jn.

4 C. Macraei Gray. Scape many-flowered; fls. large, on very short pedicels; lip oval, obtuse, 3-nerved, entire above, obscurely auricled at base; spur none. - "Canada, along the great Lakes." Also? Northern N. H. Plant 10 to 16' high. Sep. and and pet. 6" long. Caps, reflexed, oval, 6" long - Our specimens from Nor. N. H. are 18' high, 20-flowered, agreeing with Dr. Gray's description as far as we can judge by the fruit.

9.APLEC'TRUM, Nutt. Adam and Eve. Putty-root. (Gr. a,Order CXXXVIII Orchidaceae Orchids Part 5 1970 a spur; the lip being without a spur.) Sepals and petals distinct, nearly equal, converging; lip unguiculate, 3-lobed, obtuse, middle lobe crenulate, palate ridged; spur none; column free, anther a little below the apex; pollinia 4, oblique, lenticular ! - Scape and raceme as in Corallorhiza, but arising from a globous corm after the single, large, coriaceous, biennial leaf.

A. hyemale Nutt. A fine plant in woods, Can. to Fla., rare. Rather frequent westward. The corms are near 1' thick, composed of strongly glutinous matter, and connected by a thick fiber. A new corm is produced annually, in advance of the old, which dries up the second or third year. Leaf elliptic or ovate, 3 to 5 long, many-veined, twice longer than the petiole, arising late in the season from the new corm, remaining through the winter, until the scape (12 to 18' high) arises by its side. Sheaths brownish, 2 or 3. Perianth brownish, 6" long. Caps, pendulous, 1' long. May.

10. MICROS'TYLIS, Nutt. (Gr.Order CXXXVIII Orchidaceae Orchids Part 5 1971 little, Order CXXXVIII Orchidaceae Orchids Part 5 1972 style; alluding to the slender column.) Sepals spreading, distinct; petals filiform or linear, spreading; lip sessile, concave, spreading, hastate or bidentate at base, not tubercled; column minute, with 2 teeth or lobes at the summit; pollinia 4, loose, cohering by pairs in each cell. - Erect from tuberous bulbs, with 1 or 2 lvs. and small, racemed fls.

.1 M. ophioglosaoides Nutt. Lf. solitary, ovate, amplexicaul; st. 5-angled; rac. short, obtuse; pedicels much longer than the flowers. - A small plant, in woods, etc. Can. and N. States. Stem 5 - 9' high, with a single leaf a little below the middle. The leaf is rather acute, smooth, ovate or oval, about 2' in length. 1 in width. At the base of the stem is an abrupt sheath. Fls. whitish, minute, numerous, in a terminal raceme an inch or more in length, dense at top, often abortive. Pedicels about 4" long. Jn. (Malaxis, Mx.)

2 M. monophyllus Lindl. Lf. solitary, ovate, sheathing at base; rac. elongated, many-flowered, pedicels about as long as the flowers; bracts minute; sep. acute, spreading; lateral petals reflexed, linear; lip triangular-hastate, cucullate, acuminate with a recurved point. - In shady swamps, N. Y., rare (Hadley, Gray.) Stem 2 to 6' high, 3-angled, with a subspicate raceme of 20 to 40 small, greenish fls. Jl. (Malaxis, Willd. Ophrys, L.)

11. LIP'ARIS, Rich. Tway-blade. (Gr.Order CXXXVIII Orchidaceae Orchids Part 5 1973 elegant, shining; a term characteristic of the leaves.) Sepals and petals distinct, sub-linear, spreading or deflexed; lip spreading, flat, ascending, often exte-terior; column winged; pollinia 4, parallel with each other, without pedicels or glands. - Erect from tuberous bulbs, with about 2 lvs. and a raceme.

1 L. lilifolia Rich. Lvs. 2, ovate-lanceolate; scape triangular; petals filiform, reflexed; lip large, wedge-obovate, abruptly cuspidate at the broad end. - Damp woods, Can. to Car. TV. to Wis. Lvs. radical, 3 to 4' long, rather acute, tapering into a sheathing base. Scape about 6' high. Fls. 10 to 20, in a terminal, rather showy raceme. Pedicels near an inch in length. The 3 sepals greenish-white, linear, 2 upper petals capillary, yellowish-white. Lip 6" long, 4' wide, purple-translucent. Jn. (Malaxis lilifolia. Sw.)

2 L. Lœselii Rich. Lvs. 2, ovate-oblong, obtuse, keeled, shorter than the few-flowered racemes; scape angular; lip oblong, mucronata incurved, wavy; sep. and pet. linear, subequal. - About half as large as the preceding, in moist meadows and fields. Can. N. Eng. to Penn. and Wis. Lvs. 2 to 3' long, about 1' wide, obtuse or acute, sheathing at base. Scape 3 to 5' high. Fls. about 6, appressed to the rachis, in a thin raceme. Pedicels about 2" in length. Lip 2" long. Sepals and pet. greenish-white. Ovaries clavate, as long as the pedicels. Jn. (Malaxis Correana Bart.)

12. LIS'TERA, R. Brown. Tway-blade. (Named for Dr. Martin Lister, an English naturalist.) Sepals and petals somewhat equal, spreading or reflexed; lip usually pendulous, 2-lobed, or 2-cleft; column wingless, the beak rounded; anther dorsal, ovate; pollen powdery. - St. 2-leaved above the middle, with a raceme. Lvs. opposite.

1 L. cordata R. Brown. Lvs. roundish, subcordate, acute; rac. few-flowered; pedicels the length of the ovary; lip linear, 2-toothed at base, deeply bifid, with divaricate, linear segments; column very short. - Root fibrous. St. 4 to 8' high, furrowed. Lvs. 8 to 10" diam., sessile, about halfway up the stem. Fls. minute, greenish-purple, 10 to 15, in a short raceme. A delicate little plant, in woods and sphagnous swamps, among mountains, etc., N. States, and Brit. Am. Jl., Aug.