ORDER 137. ORCHLDACE^E. 327 



c crenulate or wavy, white or yellow NOB. 8, 9 



c 3-toothed. Flowers yellowish or greenish Nos. 1012 



c fringed. Flowers bright yellow or white No*. 1315 



b Lip 3-parted, x segments fringed. Flowers white or greenish Nos. 16, 17 



x segments fringed. Flowers purple Nos. 18, 19 



x segments merely toothed. Flowers violet-purple No. 20 



x segments entire, long, linear-setaceous Nos. 21, 22 



1 O. speetabills L. Lvs. rarely more than 2, 36' ; scape 46', bearing 1 or 2 lanceo- 



late bracts and 35 showy flowers above ; spur clavate. Rocky thickets. Pretty. 



2 O. orbiculata Ph. Lvs. 2, roundish, 3 6', fleshy; scape bracted, 1 2f; upper 



sepals round, the lateral ovate, half as long as the lip (9 1-2"). Woods, E. and W. 



3 O. Hooker! Wood. Lvs. 2, round-oval, fleshy, 4 5' ; scape naked, 8 12' ; upper 



sepals ovate, erect, the lateral deflexed and meeting behind ; spur 1'. Woods, X. 



4 O. obtusata Ph. Leaf oblong-ovate, obtuse, 23', near the base of the stem; lip 



linear, entire, with 2 tubercles at base, as long as the spur. In mud, N. 



5 O. rotundifolia Ph. Leaf round-ovate, radical ; scape few-flowered; lip 3-lobed, 



obcordate, side lobes falcate ; spur as long as the lip. Penn., and N. 



6 O. hyperborea Willd. Lvs. very erect, lanceolate ; spike long: bracts longer than 



the greenisn flowers ; petals and lip linear, subequal. Shades, northward. 1 4f. 



7 O. dilatata Ph. Slender, 8' 2f; Ivs. lance-linear and linear ; spike virgate ; bracte 



short ; flowers white ; lip linear, dUated-rhombic at base. Swamps, N. 



8 O. nivea Baldw. Very slender, 1 2f ; lowest leaf linear, 68', the others subu- 



late, bract-like ; flowers white, in an oblong spike ; lips oblong. South. 



9 O. integra N. Stem leafy, flexuous, 1215'; Ivs. narrow-lanceolate; spike dense, 



oval ; flowers orange-yellow ; lip ovate, longer than sepals. Swamps, N. J., and S. 



10 O. trideiitata Willd. St. slender, 1218' ; lowest leaf linear-oblong, obtuse, 6', 

 the others few, small and bract-like ; fls. few, greenish ; lip 3-toothed at end. Woods. 



11O. bracteata Mnhl. St. leafy ; Ivs. oblong, obtuse or acutish ; bracts 23 times 

 longer than the small green fls. : lip 3-(or 2-)toothed at end, lin.-cuneate. Shades. 6 9'. 



12 O. flava L. St. leafy ; Ivs. oblong to lanceolate ; bracts longer than the yellowish- 

 brown flowers ; lip oblong, obtuse, a tooth each side at base, and a tubercle in the 

 palate ; spur shorter than the ovary. Alluvial soils. (O. virescens Muhl.) 



13 O. cristata MX. Slender, 1$ 2f; leaves lance-linear to linear; flowers numerous, 

 small, yellow; sep. and pet. roundish, 1 2"; spur f as long as ovary. N. J., and S. 



14 O. ciliaris L. Yellow Fringed Orchis. Stem2f; leaves lanceolate ; flowers large, 

 numerous, orange-colored : lip 4" long, twice longer than the linear, notched petals , 

 spur 1'. Swamps. Delicately beautiful. 



ISO. Blephariglottis Willd. White Fringed Orchis. Stem 1 2f ; leaves lanceo- 

 late ; flowers pure white ; lip fringed in the middle, 2" long, lanceolate ; spur much 

 longer (!'). Swamps, N. Y. to Car., and westward. 



16 O. lacera MX. Ragged O. St. smooth, slender, 1 2f ; leaves oblong to linear, 

 bracts longer than the flowers ; sepals retuse ; petals emarginate ; flowers 00 ; lip 

 segments capillaceous-multifid ; spur as long as the ovary. Meadows. 



17O. leucophaea N. White Prairie 0. Lvs. lanceolate, tapering to a narrow ob- 

 tuse point ; bracts shorter than the ovaries ; fls. about 12 ; spur yellowish, curved, 

 twice longer than the ovary ; petals white. Wet prairies. 



18 O. Pay codes L. Purple Fringed 0. Leaves lanceolate ; lip segments cuneiform, 

 scarcely longer than the ovate, crenulate, slightly fringed petals ; spur longer than 

 the ovary. Meadows. 11 2$f. Flowers light purple. 



19 O. grandiflora Bw. Large Fringed 0. Tall, 2 3f; Ivs. oval, oblong, and lin. 

 ear, obtuse ; lip segments dependent, fan-shaped, twice longer than the fringed pet 

 als. Wet meadows, Penn., and N. Superb. (O. fimbriata.) 



20 O. peramoena (Gr.) Tall, leafy ; leaves lanceolate to lance-linear; sepals round 

 ovate ; petals denticulate ; lip middle segment 2-lobed, all merely toothed : spa 

 ; omjer than the ovary. Pa. to Ind., and S. Flowers 20 50, large. 



