SPERMATOPHYTA. 35 



Pogonia Juss. 



ophioglossoides (L.) Ker. 



In moist meadows and in swamps, common, 

 verticillata (Willd.) Nutt. In moist woods, not rare. 



Calopogon R. Br. 



pulchellua (Sw.) R. Br. 



In wet meadows and in swamps, common. 



Arethusa (Gronov.) L. 



bulbosa L. In moist meadows and in swamps. 



Spiranthes Richard. Ladies' Tresses. 

 Beckii Lindl. 



Winchendon. Mr. A. S. AUen. 



gracilis (Bigel.) Beck. In dry fields, common. 



lucida (H. H. Eaton) Ames. 



In moist places, somewhat rare, 

 cernua (L.) Richard. In moist meadows, common. 



Epipactis (Haller) Bcehm. Rattlesnake Plantain. 



repens (L.) Crantz, var. ophioides (Fernald) A. A. Eaton. 



In rich woods, not rare, 

 pubescens (Willd.) A. A. Eaton. With the preceding. 



Corallorbiza (Haller) R. Br. Coral Root. 



trifida Chatelain. In swampy woodlands, not common, 

 maculata Raf. In dry woods. 



odontorbiza Nutt. 



Southbridge, Mr. L. E. Ammidown. 



Microstylis (Nutt.) Eaton. Adder's Mouth. 

 monophyllos (L.) Lindl. 



Spencer. H. H. Kingsbury. 

 unifolia (Michx.) BSP. 



Sutton. 



