6o Bo^-Trotting for OrcKids 



I have collected it also in damp, marshy woods in 

 Mosholu, near New York City. 



The Large Yellow Moccasin-Flower seems, of the 

 two yellow species, the more generally distributed over 

 the continent, although most botanists state that the 

 smaller species is the commoner. The dwarf yellow 

 species is certainly the rarer plant in New England. 

 In the Hoosac Valley, particularly in Pownal swamps, 

 it is quite as rare as the Ram's-Head Cypripediura. I 

 have discovered only one swamp here where it grows. 



It will be of interest to make note of two species of 

 our Eastern Cypripediums, which extend nearly to the 

 Arctic Circle northward, as well as adjusting them- 

 selves southward near the Tropic of Cancer. One of 

 these species is the Large Yellow Moccasin-Flower, 

 reported as found associated with the Pink Acaule, in 

 latitude 54° to 60° North, by Dr. John Richardson on 

 Captain Franklin's journey to the Arctic lands in 

 1823.' 



Dr. F. Kurtz, in an Arctic Expedition in 1882, col- 

 lected the large yellow species, Cypripeduun hirsutum ^ 

 of the Atlantic Region, as well as Cypripediicm passer- 

 inum, which is endemic only to the Northern Pacific 

 Region. Cypripedium hirsutum also extends from New 

 England westward much farther than the pink species, 

 Cypripedium acaule. The dwarf yellow, Cypripedium 

 parvijlorum, closely follows the larger yellow species 



'John Richardson, M.D., Bot. Appendix, Report of Fravk- 

 lirt's yourney, 2d ed., p. 34, 1S23. 



2 Dr. F. Kurtz, List of Alaskan Orchids, Expedition 1882. 



