088 ORDER 138. ORCHIDACE^E. 



11. LIP'ARIS, Rich. TWAY-BLADE. (Gr. /Urrapof, 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 Ivs. and 

 n raceme. 



1 L. lilifolia Rich. Lvs. 2, ovate-lanceolate; scape triangular; petals filiform, 

 reflexed; Up large, wedge-obovate. abruptly cuspidate at the broad end. Damp 

 woods, Can. to Car. "W. 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, yeliowish-white. Lip 6" long, 4" wide, purple- 

 translucent. Jn. (Malaxis lilifolia. Sw.) 



2 L. Lceselii Rich. Lvs. 2, ovate-oblong, obtuse, keeled, shorter than the few- 

 flowered racemes ; scape angular ; lip oblong, mucronate 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, 

 otituse or acute, sheathing at base. Scape 3 to 5' high. Fls. about G, 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. LISTERA, 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 tho 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, &c., 1ST. States, and Brit. Am. Jl.. 

 Aug. 



2 L. convallarioides Hook. Lvs. roundish-ovate; rac. fcw-flowered, loose, 

 pubescent; sep. ovate-lanceolate; lip. euneate-spatulate, twice as long as the 

 sepals, 2-toothed at base, with 2 roundish lobes and an intermediate minute ono 

 at the apex ; column elongated. Car. to Arc. Am. Root fibrous, St. very slen- 

 der, 5 to 10' high, sheathed with a few bracts, bearing the 2 Ivs. above the mid- 

 dle. Lvs. 1' or more long, nearly as wide. Fls. small, the broad, obcordate lip 

 about 4" long, purplish. May. 



3 L. ptibescens Xutt. St. pubescent, leafless; Ivs. all radical, ovate, acute; JH. 

 in a raceme; lip 2-lobed, the other segments connivent, about as long as tho lip; 

 caps, clavate. Pino barrens, Car. and Gu. Fls. greenish-white. Jn., Jl. We havo 

 seen no specimen. Is it a Cranichis? 



4 L. australis Lindl. Lvs. ovate ; fls. minute, puberulent, on pedicels twice 

 longer than the ovary, in a loose, slender raceme ; lip linear, cleft into 2 linear- 

 setaceous segments, 3 or 4 times longer than the sepals. Swamps, N. Jer, to Ga. 

 May, Jn. * 



13. CRAN'ICHIS, Swartz. (Gr. Kpdvo^ a helmet ?) Sepals spread- 

 ing or reflexed ; lip narrow, entire, arched ; column straight, bearing 

 the anther on the back, parallel with the style ; pollen farinaceous. 

 Lvs. nearly radical. St. bracted, bearing a slender spike. Fls. obliquely 

 cernuous. 



C. multifiora Ell. St. Blender, with a few sheathing bract.?, pubescent abovo; Ivs. 

 Ovate-lanceolate, acute, on short, sheathing petioles near the base ; spike many- 

 flowered, rather loose; sep. pubescent, lanceolate, mostly refloxed; petals linear, 



