Aplectrum. 



ORCHIDACEiE. 



271 



4. LIPARIS. L. C. Rich.; Lindl. Orchid, p. 26. TWAYBLADE. 



[So named from the Greek, liparos, fat ; the leaves being unctuous to the touch.] 



Sepals and petals nearly equal, linear, spreading. Lip flat, dilated, entire. Column elongated, 

 semiterete. Pollen-masses in 2 pairs. — Leaves mostly 2, radical, with a pseudobulb at 

 the base. Flowers pale green or greenish purple, in racemes, with slender pedicels. 



1. Liparis liliifolia, L. C. Rich. Common Twayblade. 



Leaves 2, ovate, rather acute, much shorter than the few-flowered raceme ; lip very large, 

 obovate, mucronate, colored ; petals filiform, deflected. — Lindl. in bot. reg. p. 882, <§• Orchid, 

 p. 28 ; Beck, bot. p. 350 ; Barlingt.fi. Cest. p. 512 ; Hook.fi. Bor.-Am. 2. p. 193. Malaxis 

 liliifolia, Willd. sp. 4. p. 92 ; Pursh, fl. 2. p. 592 ; Bot. mag. t. 2004 ; Nutt. gen. 2. 

 p. 196 ; Ell. sk. 2. p. 503 ; Bigel. fl. Bost. p. 324 ; Torr. compend. p. 321. 



Pseudobulb ovoid. Leaves opposite, somewhat spreading, 2-4 inches long and about 

 1$ or 2 inches wide, strongly but obtusely keeled. Scape 5-angled, erect. Flowers spreading ; 

 the ovary purplish. Sepals lanceolate-linear ; the two lower ones supporting the lip : upper 

 one deflected. Petals very narrow, dull purplish red, deflected. Lip dull purplish and 

 translucent. Column incurved, with 2 glands at the base. Anthers with a terminal lid. 

 Ovary with many winged ridges. 



Moist forests : not common. FL June. 



2. Liparis Lceselii, L. C. Rich. Smaller Twayblade. 



Leaves 2, ovate-lanceolate, plicate, erect, much shorter than the few-flowered raceme ; 

 scape 3 - 5-angled ; lip obovate, entire, of the same color on both sides ; sepals and petals 

 linear, unequal. — Lindl. in bot. reg. t. 882, and Orchid, p. 28 ; Hook. fl. Bor.-Am. 2. p. 194. 

 L. Correana, Spreng. syst. 2. p. 740 ; Graham in Edinb. new phil. jour. Oct. 1828; 

 Beck, bot. p. 350; Darlingt. fl. Cest. p. 512. Malaxis Correana, Bart, prodr. fl. Phil, 

 p. 86 ; Nutt. gen. 2. p. 512. M. longifolia, Bart. fl. Phil. 2. p. 142, and fl. N. Amer. 3. 

 t. 75. Ophrys Lceseli, Linn. sp. 2. p. 947. 



Pseudobulb ovate. Leaves 3-5 inches long, sharply keeled underneath. Scape 5-8 

 inches high, prominently angled. Raceme rather crowded ; the flowers erect, on pedicels 

 about as long as the ovary, scarcely more than half as large as in the preceding species, but 

 more numerous. Sepals lanceolate-linear, spreading equally. Petals linear, somewhat 

 refiexed, yellowish green, revolute on the margin. Lip mucronate and incurved at the tip, 

 waved on the margin, yellowish green. Column incurved, half the length of the lip. Ovary 

 with many winged angles. 



Moist woods, in rich soil : rare. Clinton, Oneida county {Dr. Bradley) ; North-Salem, 

 Westchester county (Dr. Mead). Fl. June. 



