454 ORCIIIDACEJE. (ORCHIS FAMILY.) 



2. M. Floridana, n. sp. Leaves 2, near the base of the 3-angled stem, 

 unequal, ovate, or elliptical, mostly acute, sheathing; raceme slender, acute, 

 elongated in fruit, many-flowered ; pedicels longer than the flowers; sepals ob- 

 long, spreading, with the margins revolutc ; petals filiform, reflexed, twisted ; lip 

 round-auriculate-cordate, abruptly narrowed and entire at the apex, depressed at 

 the sinus ; capsule oblong or obovate. — Wet shady woods, Apalachicola, Flor- 

 ida. July and Aug. — Stem 6' -12' high. Leaves l'-4' long. Flowers 1" 

 wide. 



2. LIPARIS, Richard. Twayblade. 



Sepals spreading. Petals linear or filiform, spreading or reflexed. Lip entire, 

 flat, often with two tubercles above the base. Column long, semi-terete, incurved, 

 margined at the apex. Pollen-masses 4, collateral, united by pairs at the apex. — 

 Low herbs, from bulbous roots. Leaves 2, sheathing the base of the scape-like 

 stem. Flowers racemed, greenish or purplish. 



1. L. liliifolia, Richard. Leaves elliptical, obtuse, sheathed at the base ; 

 scape 3-angled, 10 - 20-flowcrcd, longer than the leaves; sepals linear, whitish ; 

 petals filiform, reflexed, yellowish ; lip large, wedge-obovate, concave, abruptly 

 pointed, brownish-purple. (Malaxis liliifolia, Suxaiz.) — Low shady woods and 

 banks in the upper districts, Georgia, and northward. June and July. — Scape 

 5' -10' high. Leaves 2' -4' long. Lip £' long. 



3. CORALLORHIZA, Haller. Coral-root. 



Sepals and petals alike, oblong or lanceolate, connivent. Lip clasping the 

 base of the straight 2-cdgcd column, spreading and concave above. 2-ridged near 

 the base, spurless, or with the spur adnatc to the ovary. Anther lid-like. Pol- 

 len-masses 4, incumbent. — Low dull-colored leafless herbs, with coral-like roots, 

 sheathed stems, and racemose flowers. 



1. C. odontorhiza, Nutt. Root pinnately branched and toothed ; stem 

 tumid at the base, slender above ; sheaths 3, elongated ; racemes 10 - 15-flowered ; 

 sepals and the rather shorter spotted petals erect, lanceolate, obtuse ; lip entire, 

 longer than the sepals, distinctly clawed, the spreading limb oval, concave, 

 3-nerved, with two tooth-like ridges in the throat, white spotted with purple; the 

 margins crenulate below the middle and involute above ; margins of the col- 

 umn thickened and incurved at the base; capsule oval, nodding — Shady woods, 

 Florida, and northward. Feb. and March. — Stem 8' - 10' high. Lip 4" long. 



2. C. micrantha, n. sp. Root toothed; stem low, rigid; sheaths 2, 

 abruptly pointed; raceme 6- 12-flowered j flowers very small (i''-H" long), 

 erect ; sepals and petals nearly equal, linear, erect ; lip short-clawed, entire, oval. 

 Concave, denticulate on the margins, without teeth or ridges, shorter than the 

 Sepals, white spotted with purple; capsule obovate, nodding. — Shady woods, 

 Florida and Georgia Aug. and Sept. — Stem 3' - ('>' high 



3. C. innata, R. Brown. Root branching; stein slender; sheaths 3; the 

 Upper one elongated and often leaf-like at the apex; raceme 5 - 12-flowered ; lip 



