Since the publication of “Western Pennsylvania Orchids” by Henry, Buker & Pearth, (Castanea 40:1-168 1975) additional discoveries continue to be made (Buker, W. E. 1977. Addendum to “Western Pennsylvania Orchids.” Castanea 42:95-98; Jolley, Douglas K. 1978. “Additions to the Orchid Flora of Potter County, Pennsylvania.” Castanea 42:64-66.