ORCniDACEAE ^T 



18. LEPTORCHIS Thouars. 



Petals linear: lip 25-35 mm. broad : capsules oblong. i. L. Loeselii. 



Petals filiform or linear-filiform : lip 9-12 mm. broad : capsules clavate-oblong. 



2. L. liliifolia. 



1. Leptorchis Loeselii (L. ) MacM. LoESEL'S Twa\'BLADE. (Man. p. 

 303 ; I. F.y. 1137.) In wet thickets, N. S. to the N. \V. Terr., Ala. and Mo. 

 — Pennsylvania : Monroe ; Berks, near Reading ; Erie, Presque Isle ; 

 Chester ; Bucks. 



2. Leptorchis liliifolia (L. ) Kuntze. Large Twaybl-^de. (Man. p, 

 303 ; I. F.y". 1136.) In moist woods and thickets, Me. to Minn., Ga. and 

 Mo. — Pennsylvania: Northampton; Bucks; PHir..ADELPHiA ; Ches- 

 ter; Lancaster; Monroe; Luzerne; Mifflin; Delaware; Alle- 

 gheny. 



19. CORALLORHIZA R.Br. 



Lip not 3-lobed, but often erose or finely toothed. 



Lip not notched, clawless : perianth 6-8 mm. long : column narrowly winged. 



1. C. odonlorhiza. 

 Lip notched, clawed : perianth 12-14 mm. long : column strongly winged. 



2. C. iVisieriana. 

 Lip 3-lobed, the lateral lobes spreading or directed forward. 



Spur obsolete : lip shallowly 3-lobed : capsules 8-10 mm. long. 



3. C. Corallorhiza. 

 Spur prominent: lip deeply 3-lobed : capsules 12-20 mm. long. 



4. C. mulliflora. 



1. Corallorhiza odontorhiza (Willd.) Nutt. Small- FLOWERED 

 CORAI.-ROOT. (Man. p. 305 ; I. F. /. IJ40.) In woods, Mass. to Mich., 

 Fla. and Mo. — /'^ww.yj'/z'aw/a .• Northampton ; Bucks; Huntingdon; 

 Centre; Erie; Somerset; Lancaster; Allegheny; Chester. 



2. Corallorhiza Wisteriana Conrad. WiSTER'S Coral-ROOT. (Man. 

 p. 305 ; I. F.y. //^/. ) In woods, Mass. to Fla., Ohio and Tex. — Penns}l- 

 va?iia : Philadelphia; Franklin; Lancaster; Chester. 



3. Corallorhiza Corallorhiza (L) Karst. Early Coral-root. 

 (Man. p. 305 ; I. F./. 1139.) In woods, N. S. to Alaska, N. J., in the 

 mountains to Ga., and to Mich, and Wash. — Pennsylvania : Wayne ; 

 Tioga ; Lancaster. 



4. Corallorhiza multiflora Nutt. Large C0R.A.L-ROOT. (Man. p. 

 306 ; I. F.y. 1 142.) In woods, N. S, to B. C, Fla., Mo. and Q.2i\.— Penn- 

 sylvania : Monroe ; Northampton ; Luzerne ; Huntingdon ; Frank- 

 lin ; Bucks; Columbia; Armstrong; Erie; Lancaster; Alle- 

 gheny ; Chester. 



20. APLECTRUM Nutt. 



1. Aplectrum spicatum (Walt) B.S.P. Adam-and-Eve. Putty- 

 ROOT. (Man. p. 305 ; I. F./. 1147.) In woods and swamps, Ont. to the 

 N. W.Terr., Ore., Ga., Mo. and Q.a\.— Pennsylvania : Monroe, Water 

 Gap ; Lebanon ; Huntingdon ; Lancaster ; Mifflin ; Centre ; 

 Armstrong; Allegheny; Franklin; Chester. 

 7 



