Tap. 5277. 
SPIRANTHES cernva. 
Drooping-flowered Spiranthes. 
* 
Nat. Ord. OrcHIDEZ.—GYNANDRIA MONANDRIA. 
Gen. Char. Perianthium ringens. Sepala lateralia labello supposita, basi ob- 
liqua et in ovarium_decurrentia; dorsale petalis subglutinatum. Ladellum pe- 
dipreducte columne affixum, unguiculatum, raro sessile, oblongum, spius 
apice dilatatum, nunc trilobum, semper cad/is duobus infra medium instructum, 
column adpressum, eique marginibus inflexis arcte adherens. Columna basi 
arcuata et ovarii apicem oblique terminans, in pede producta, teres; stigmate 
ovato, in rostellum acuminatum, demum bifidum, aut obtusum, emarginatum, raro 
corneum, indivisum producto. Anthera dorsalis acuminata vel obtusa, nune 
membrana apiculata, bilocularis ; clinandrio utrinque membranaceo marginato. 
Pollinia 2, pulverea, bipartita; glandule communi oblonge aftixa.—Herbe, 
utringue orbis, terrestres, sepius parviflore et glanduloso-pubescentes ; radicibus 
fasciculatis. Folia radicalia, nune caulescentia, textura Orchidis, nunc omnino 
deficientia. Flores spicati, spirales. Lindl. 
SPIRANTHES cernua ; tuberibus elongatis fasciculatis, foliis radicalibus spathulato- 
lanceolatis obscure 3-5-nerviis patentibus, caulinis sensin minoribus lanceo- 
latis basi vaginatis, spica oblonga densa multiflora, bracteis flores zequanti- 
bus, floribus trifariam spiraliter tortis, sepalis pubescenti-glandulosis in 
unum ovatum cucullatum coherentibus petala oblongo-spathulata includen- 
tibus, labello oblongo obscure trilobo basi biglanduloso, lobo medio lato 
sinuato reflexo, columna ovata birostrata basi glanduloso-barbata, ovario 
pyriformi triquetro glanduloso. 
SprrantueEs cernua. Rich. Orchid. Annot. p. 37. Hook. Fl. Bor. Am. v. 2. 
p. 202. Lindl. Bot. Reg. t. 823. Gen. et Sp. Orchid. p. 467. Babington 
in Trans. Linn. Soc. v. 19. p. 262. ¢. 32. Asa Gray, Man. Bot. N. U. St. 
Illustr. p. 448. Elliott, Fl. of 8. Carolina, v. 2. p. 492. Chapman, Fl. 8. 
U. St. p. 402. Torrey, Fl. of N. York, p. 283. Tab. 129. : 
Opurys cernua. Linn. Sp. Pl. p. 1340. 
Neortra cernua. Willd. Sp. Pl. v. 4. p. 15. Sims, Bot. Mag. t. 1568. Sweet, . 
Brit. Fl. Gard. v. 1. p. 42. Hook. et Arn. Brit. Flora, ed. 7. p. 430. 
Neortra gemmipara. Sm. Eng. Fl. v. 4. p. 36. Engl. Bot. Suppl. t. 2786. 
SPIRANTHES gemmipara. Lindl. Syn. Br. Fl. p. 257.° Hook. et Arn. Brit. Fl. 
ed. 8. p. 431. Reichenb. Orchid. in Fl. Germ. t. 477. f. t. (copied from 
Engl. Bot.) 
Perhaps no Orchideous plant has remained so long ina state of 
OCTOBER lst, 1861. 
