Order 138.— ORCHID ACBiB. 689 



eonnivent and carved upwards, lip recurved almost to a half circle, channeled, ita 

 base embracing the column. — Sandy soils, S. Ga. ]?la. to La. (Described froaa an 

 imperfect specimen resembling a Spuranthes.) St. 10 to 20' high. Lvs. 1 to 2' 

 ( long. Perianth scarce 5" long, greenish-white. Sept., Oct. 



14. SPIRAN'THES, Rich. Ladies' Teesses. (Gv. cnelpov, a 

 wreath ; sc. the twisted spike.) Perianth ringent ; lower sepals oblique 

 and including the base of the lip ; upper sepal eonnivent with th« 

 petals ; lip oblong, channeled, parallel with the column, and with callous 

 processes at base ; column curved, stigma ovate, rostrate, becoming 

 bidentate at apex; anther dorsal; pollinia 2, each 2-lobed, powdery. — 

 St. scape-like, bearing many white fls. in an oblique, spiral row. 



* Bpike with tho rachls twisted, and the flowers in one moderately twisted row Nos. 1, 2 



* Bpilco witii tho rachis straight but tho flowers iu a dense spiral all around Nos. 8, 4 



1 L. grdoilia Bigelow. Slender Ladies' Tresses. Lvs. all radical, ovate or ob- 

 lanceolaie, fugacious ; scape with remote ehca'fhs ; fls. in a single row, which is 

 moderately spiral ; hp oblong-spatulate, crenulate-wavy at the recurved tip, tho 

 callosities distinct; plant nearly glabrous. — A veiy delicate plant, not uncommon 

 In old woods, Can. and TJ. S. Scape very slender, 8 to 1 2' high. Lvs. close on 

 the ground, 1 to 2' long, contracted to a petiole, usually withering before the 

 flowers appear. Fls. white, fragrant. Eachis twisted more than tho row of 

 flowers, but in the opposite direction. Jl., Aug. 



2 Zi. tortilis Ph. Tall, slender; lvs. mostly at hose; long and linear ; the caulino 

 distant and sheathing ; bract-lite ; fl.^. in a single row, moderately twisted, on a 

 twisted rachis; perianth elongated (5"); Zip oblong, a,cnts, pinnaiely lobed, loban 

 crenulato ; plant more or less pubescent aftow.— Grassy plains, Car. to Ala. and 

 Fla^ St. 2 to 3f high, stouter than in S. gracilis. Lvs. 6 to 10' long, 2 to 5" v/ide. 

 Spike 3 to 5' long. Jn. JL 



3 S. c^rmia Rich. Lvs. linear-lanceolate, the lower elongated, the cauline gradually 

 smaller ; spike dense-flowered, thick, oblong, the flowers oblique and cernuous ; 

 Up oblong, obtuse, wavy and crenulate, recurved, longer than tho petals ; plant 

 pubescent above. — Can. and TJ. S., common in meadows, &c. St. 9 to 18' or more, 

 somewhat leafy. Lvs. 3 to 6 to 10' long, 3 to 6" wide. Spike 1 to 3' long. Fls. 

 large for the genus, fragrant. Perianth i to 5" long, cream-white. Aug. — Oct 



4 S. latifolia Torn Lvs. nearly radical, oblong or linear-lanceolate, 3 to 5-veined ; 

 Bt with 2 or 3 sheathing bracts ; fls. (small 3 to 4") in an oblong, dense spike 

 which is somewhat twisted ; lip oblong, obtuse, crenulate-crisped on the margin. 

 oJoMi 5-veined, callosities adnate; plant quite glabrous. — In moist grounds, Csi., 

 to Penn. A low plant, often concealed in tho grass, 4 to 8' high. Lvs. 3 or 

 more, 2 to 4' long, often obtusisb. Fls. rather larger than in No. 1, white, tho 

 lip yellowish, with green lines. Jn., Jl. 



15. GOODYE^RA, R. Br. Rattlesnake Plantain. (Named for 

 John Goodyer, an obscure English botanist.) Perianth ringent; calyx 

 inflated, upper sepals with the petals vaulted, the two lower sepals 

 placed beneath and including the saccate, entire lip, which is without 

 callosities and abruptly acuminate and reflexcd at apex ; anther on the 

 back of tho free column ; pollinia 2, composed of angular grains. — 

 Bracted scapes arising from creeping rhizomes, with radical, ovate lvs. 

 and a downy spike of small white fls. 



1 G. rep6ns E. Br. Lvs. ovate-lanceolate, obscurely reticulated with white, lip 

 ovate, with an oblong, obtuse acumination; column acutely 2-horned at the sum- 

 mit; spike seound or slightly twisted, minutely pubescent. Rocky mountain 

 •woods. Can. to Car. St. slender, 5 to 8' high, bearing a spike 2 to 3' long. Lvs. 

 9 to 12" in length, curiously netted with white lines, but less so than the next 

 (which is scarcely distinct from this). Jl, Aug. 



2 G. pnbSscena R. Br. Lvs. dvafe, and oonspicuouflly reticulate with white ; 



44 



