Section I. Subfamily Orchidoideae (Part two)
Tribe Cranichideae
Chapter 1. Subtribes Goodyrinae and Cranichidinae
Goodyerinae
Goodyera R. Brown (rattlesnake plantains)
Other Goodyrinae
Zeuxine Lindley
Platythelys Garay
Cranichidinae
Ponthieva R. Brown
Chapter 2. Subtribe Spiranthinae
Spiranthes Richard (ladies''- tresses)
Asexual species or populations
Sexual species or populations
Additional species of Spiranthes
Other Spiranthinae
Dichromanthus Garay
Deiregyne Schlechter
Schiedeella Schlechter
Microthelys Garay
Section II. Subfamily Epidendroideae
Chapter 3. Tribe Neottieae
Listera R. Brown
Listera cordata (L.) R. Brown (heart-leaved twayblade)
Additional species of Listera
Other Neottieae
Cephalanthera Richard
Cephalanthera austinae (A. Gray) A. Heller (phantom orchid, snow orchid)
Epipactis Zinn
Epipactis gigantea Douglas ex Hooker (giant helleborine, stream orchid)
Epipactis helleborine (L.) Crantz (broad-leaved helleborine)
Additional species of Epipactis
Chapter 4. Tribe Triphoreae
Triphora Nuttall
Triphora trianthophora (Swartz) Rydberg (three birds orchid, nodding
pogonia)
Chapter 5. Tribe Malaxideae
Malaxis Solander ex Swartz
Malaxis paludosa (L.) Swartz (bog adder''s-mouth)
(= Hammarbya paludosa (L.) Kuntze)
Additional species of Malaxis
Liparis Richard
Liparis liliifolia (L.) Richard ex Lindley (lily-leaved twayblade or large
twayblade)
Liparis loeselii (L.) Richard (loesel''s twayblade or fen orchid)
Chapter 6. Tribe Calypsoeae
Calypso Salisbury
Calypso bulbosa (L.) Oakes (calypso, fairy slipper)
Tipularia Nuttall
Tipularia discolor (Pursh) Nuttall (crane-fly orchid)
Corallorhiza Gagnebin (coral roots)
Additional species and varieties of Corallorhiza
Aplectrum Nuttall
Aplectrum hyemale (Muhlenberg ex Willdenow) Nuttall (adam and eve orchid,
putty-root)
Chapter 7. Tribes Cymbidieae and Epidendreae
Cymbidieae
Eulophia R. Brown ex Lindley
Epidendreae
Epidendrum L.
Hexalectris Rafinesque
Chapter 8 Tribe Arethuseae (Calopogon R. Brown and Arethusa L.) and subfamily Vanilloideae (part one) (Pogonia Jussieu)
Arethusa bulbosa L. (dragon''s-mouth), Pogonia ophioglossoides (L.) Ker
Gawler (rose pogonia), and Calopogon tuberosus (L.) Britton, Sterns, and
Poggenburg (grass-pink)
Additional species of Calopogon
Section III. Subfamily Vanilloideae (part two)
Chapter 9. Tribe Pogonieae
Isotria Rafinesque
Isotria verticillata (Muhlenberg ex Willdenow) Rafinesque (large whorled
pogonia) and I. medeoloides (Pursh) Rafinesque (small whorled pogonia)
Cleistesiopsis Pansarin and Barros
Cleistesiopsis divaricata (L.) Pansarin and Barros (spreading pogonia) and
C. bifaria (Fernald) Pa
