Amerorchis rotundifolia (Banks) Hulten
Calopogon tuberosus (Linnaeus) Britt. var. tuberosus
Calypso bulbosa (Linnaeus) Oakes var. americana (R. Brown) Luer
Corallorhiza maculata (Rafinesque) Rafinesque var. maculata
Corallorhiza maculata (Rafinesque) Rafinesque var. occidentalis (Lindley) Ames
Corallorhiza striata Lindley var. striata
Corallorhiza trifida Chatelain
Cypripedium arietinum R. Brown in Aiton
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 hookeri (Torrey) Lindley
Platanthera hyperborea (Linnaeus) Lindley var. hyperborea
Platanthera lacera (Michaux) G. Don
Platanthera obtusata (Banks & Pursh) Lindley
Platanthera orbiculata (Pursh) Lindley
Platanthera psycodes (Linnaeus) Lindley
Pogonia ophioglossoides (Linnaeus) Ker-Gawler var. ophioglossoides
Spiranthes lacera Rafinesque var. lacera
Spiranthes romanzoffiana Chamisso
Last revised: Friday, September 13, 1996