OBCHIDACEJE. 373 



long, thin spike. Sepals short, ovate, green. Petals yellowish. Upper 

 bracts about as long as the flowers, lower ones 2 or 3 times as long. The 

 tubercle of the lip is a remarkable charactei. June. Ficid Orchis. 



7. O. VlR'lDIS. Su-tz. O. bracteata. .Wm/j. Peristylus bracteatus. LmdZ, 

 S/CTO leafy ; Z«f/»es oblong, obtuse, upper ones acute; spilielax; brartii2 — 3 



times as long as the floweis ; i-cpa/sconnivent, ovate; pfiw/s linear, erect ; lip 

 linear-cuneate, truncate, 3-toothed at the end, the middle tooth small or obso- 

 lete ; spur short, inflated, obtuse. A small, green flowered orchis, in shades. 

 Stem 6 — 9 inches high. Leaves about 3, J^ — 2}^ inches long,^- — 1 inch wide, 

 upper bracts as short as tlie flower. Spike 2 — 3 inches long. Flowers yel- 

 lowish green. Lip as long as the ovary, 3 times as long as the spur. Jl, Aug. 



8. 0. TRIDENTa'tA. Willd. Habenaria. Hook. Gymnadenia. Lindl. 

 Rudical /co/ solitary, oblong, obtuse, cauline 2 — 3, much smaller; sepals 



campanulate, obtuse, converging ; lip lanceolate, 3-loolhed, at the extremity ; 

 spur filiform, curved, chivate, longer than the ovary. Grows in woods and 

 swamps. Stem slender, 1 —2 feet high, with small, greeniah white flowers in 

 a short and rather loose spike, appearing in July. Tliree-toothcd Orchis. 



9. 0. ROTUNDtFO'LIA. Habenaria. Rich. Platanthera. LindL 

 ifrt/ solitary, roundish ovate ; sMpc naked; 5p« Ac few -flowered ; bracts 



obtuse, shorter than tiie ovary ; sepals and pe.lals obtuse; lip 3-lobed, lateral, 

 lobes subfalcate, middle one obcordate ; sp^ir as long as the lip. Scape about 

 afoothiL^h, slender, without a bract. Leaf 2 — 4 inches long, 3 as wide, 

 spotted, sheathing at base. Flowers about a dozen, of a greenish white, re- 

 markable for their broad, 3 (almost 4)-lobed, pendant lip. 



1 1 Lip fimbriate. Stem leafy. 



10. 0. CILIA'rIS. L. Habenaria. Rich. Platanthera. LindL 

 Lower leaves linear-lanceolate ; spike, oblong, dense ; bracts shorter than the 



ovary ; lip oblong-lanceolate, pinnate-cilinte. twice as long as the petals; spur 

 longer than the ovary. A delicately beautiful orchis, with bright orange- 

 colored flowers, in swamps, rare. Stem about2 feet high. Leaves sheathing 

 at base ; lower ones 3 — .5 inches long, rapidly diminishing upwards. Sepals 

 roundish, obtuse, concave. 2 petals linear, very small, incised at the summit; 

 the lio narrow, lanceolate, conspicuously fringed, 4 lines long. Spur an inch 

 lon<r.' July, Aug. Fringed Yellow Orchis. 



11. 0. BlEPHARIGLO'tTIS. Willd. Habenaria. Rich. Platanthera. Lindl. 

 Lower /cccrs lanceolate, channeled; spihe oblong, dense; bracts linear, 



acuminate, shorter than the flowers; lip lanceolate, ciliate, as long as the 

 upper sepal ; spur much longer than the long-beaked ovary. A delicate 

 orchis, in swamps, resembling tlie last species, but distinguished at least, by the 

 color of its flowers which are of a pure white. Stem 1—2 feet high. Fls. fewer 

 than in the last. Sep. roundish oblong, lateral refle.ved. Pet. spathulate, den- 

 tate. Lip fringed in the middle, 2 hnes long. Jn. Jl. Frirgcd White Orchis. 



12. 0. LA'CERA. iUr. O. psycodes. 5/ire?ig. Habenaria. &. Platamhera. LmrfZ. 

 Lower leaves oblong, obtuse, upper ones narrow, acuminate ; bracts longer 



than the flowers ; sepals reiwsc; 7;f<ffl/.v emarginate ; lip 'i-'p^ricA ; segments 

 ciineate, capillaceous-multifid ; spur filiform, clavate, as long as the ovary. 

 Swamps and meadows. Stem 1 — 2 feet high, smooth, slender. Leaves few, 



3 (5 inches long, i^ — 1 inch wide, mostly acute. Flowers numerous, in a 



Ion?, loose spike,°ora greenish white, not showy. Sepals ovate. Petals 

 oblong-linear, entire, Up reflcxed, very deeply lasciniate. Readily distin- 



