GYNANDRIA DIANDR1A. 



360. ARETHUSA. 



A. hulbosa : leafless ; root bulbous ; scape sheathed, 1-flowered. 

 HAB. Swamps. June, Tj. ; stem 8 12 indies high.. JLower solitary, 

 large, purple. 



361. MALAXIS. 



M. liliifolia: leaves 2, ovate-lanceolate; scape triangular; interior 

 petals filiform, reflexed ; lip concave, obovate, acute at the tip. 



HAB. Woods and swamps. June, 1J.; leaves large, radical ; scape 

 6 10 inches high ; Jlower greenish-white. 



* Subgenus. MICROSTELIS. 



Lip sessile and concave, . erect, the summit truncate and bidentate ; 

 column minute ; antkers 2 ; pollinia 3. 



M. ophioglossoides : leaf solitary, ovate, amplexicaul ; stem pentag- 

 onal. 



HAB. Swamps. June, Tj. ; stem a span high, with one leaf; Jlower 

 minute, greenish-white. 



362. CORALLORHIZA. Dragon's claw. 



C. odontorrhiza : lip oval, undivided, obtuse, spotted ; spur obsolete, 



adnate ; capsule subglobose. 

 HAB. Shady woods. Aug. September, Q ; a foot high, leajless t 



sheathed ; flower purplish. 



DIANDRIA. 

 363. CYPRIPEDIUM. Ladies' slipper. 



C. pubescens: stem leafy; lobe of the style triangular-oblong, obtuse j 



exterior petals ovate-oblong, acuminate; interior very long, linear, 



contorted ; lip shorter than the petals, compressed. 

 HAB. Meadows and woods. May June, *2J.; stem 1 3 feet ; fl. 



greenish-yellow, spotted ; leaves pubescent. 

 C. spectabile: stein leafy; lobe of the style elliptical cordate, obtuse ; 



exterior petals broad-oval, obtuse ; lip longer than the petals, cleft 



before. 

 HAB. Swamps. June,*7J.; stem 2 3 feet high ; 2 3-Jlowered, 



thick ; lip white and purple. 

 C. acaule : scape leafless, 1-flowered; radical leaves 2, oblong, obtuse; 



lobf of the style roundish-rhomboidal, acuminate, deilexed ; petals 



lanceolate ; lip shorter than the petals, cleft before. 

 HAB. Woods. May June, Q|.; scape I foot high; Jlower very 



large : lip purple. 



