Amerorchis rotundifolia (Banks) Hulten
Calypso bulbosa (Linnaeus) Oakes var. americana (R. Brown) Luer
Coeloglossum viride (Linnaeus) Hartman var. virescens (Muhlenberg) Luer
Corallorhiza maculata (Rafinesque) Rafinesque var. maculata
Corallorhiza maculata (Rafinesque) Rafinesque var. occidentalis (Lindley) Ames
Corallorhiza striata Lindley var. striata
Corallorhiza trifida Chatelain
Cypripedium candidum Muhlenberg ex Willdenow
Cypripedium parviflorum Salisb. var. makasin (Farwell) Sheviak
Cypripedium parviflorum Salisb. var. pubescens (Willdenow) Knight
Cypripedium passerinum Richmond var. passerinum
Goodyera oblongifolia Rafinesque
Goodyera repens (Linnaeus) R. Brown
Liparis loeselii (Linnaeus) Richard
Listera cordata (Linnaeus) R. Brown var. cordata
Malaxis brachypoda (Gray) Fernald
Malaxis paludosa (Linnaeus) Swartz
Platanthera dilatata (Pursh) Lindley var. dilatata
Platanthera dilatata (Pursch) Lindley var. albiflora (Chamisso) Ledebour
Platanthera hyperborea (Linnaeus) Lindley var. hyperborea
Platanthera obtusata (Banks & Pursh) Lindley
Platanthera orbiculata (Pursh) Lindley
Spiranthes lacera Rafinesque var. lacera
Spiranthes romanzoffiana Chamisso
Last revised: Friday, September 13, 1996