454 ORCHIDACE^E. (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 revolute ; 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. LIPAKIS, 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-flowered, longer than the leaves; sepals linear, whitish ; 

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

 pointed, brownish-purple. (Malaxis liliifolia, Swartz.) 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-edged column, spreading and concave above, 2-ridged near 

 the base, spurless, or with the spur adnate to the ovarv. Anther lid-like. Pol- 

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

 sheathed stems, and racemose flowers. 



!. 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' - 16' high. Lip 4" long. 



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

 abruptly pointed; raceme 6 - 1 2-flowered ; flowers very small (I 1 ' - 1^" 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' - 6' high. 



3. C. irinata, R. Brown. Root branching; stem slender; sheaths 3; the 

 upper one elongated and often leaf-like at the apex; raceme 5- 1 2-flowered; lip 



