House: Orchids of central New York 381 



Ibidium strictum (Rydb.) 



)erg, Fl. Montana 107. 1900. Britton, 



Manual 299. 1901 



Alaskan S. Romanzoffii 



IS merged with the latter by Oakes Ames (Orch. 138. 1905). 



Ibidium plantagineum (Raf.) 



Neottia planiaginea Raf. Am. Monthly Mag. 2: 206. 18 18. 

 Spiranthes plantagijtea Torn 1 843. Not Lindl. 

 S, latifolia Torr., Lindl. 1840. 

 Gyrostachys latifolia Kuntze. 1891. 

 G. plantaginea Britton. 1896. 



The commonest species of the genus in central New York, 

 occurring in almost every bog and swampy place. 



^ Ibidium cernuum (L.) 



Opkrys cernida L. Sp. PI. 946. 1753. 

 • Spiranthes cermta Rich. 1817. 

 Gyrostachys cermia Kuntze. 1891. 



Common in sphagnum bogs. Specimens examined from 

 Oneida, Madison, Onondaga and Oswego counties. 



' * Ibidium ochroleucum (Rydb.) 



Gyrostachys ochroleuca Rydb. Britton, Manual 300, 1901. 



This species is reduced to a variety o^ cernuum by Oakes Ames 

 (Orch. 145. 1905); central New York specimens, though very 

 rare, are quite distinct from cernuum. 



• 



near Jamesville, Housiy i 



Ibidium gracilis (Bigel.) 



Ni 



1824, 



Gyrostachys g) -acilis Kuntze. 1S91. 



This is the Spiranthes gracilis of Gray's Manual, but probably 

 not of Beck, which seems referable to 5. Beckii Lindl., although) 

 according to the citations given, Mr. Ames apparently does not 

 hold this view. 



Common in sandy places, especially in Oneida County. 



-> Ibidium veraalis (Engelm. & Gray) 



Spiranthes vernalis Engelm. & Gray, Bost. Journ. Nat. Hist. 5 : 



236. 1845. 



