Atlas of the orchids of Long Island, New York

Forty species of orchids have been reported in the literature from Long Island, New York, but three of the species have never been substantiated with definitive voucher specimens. Thus, the orchid flora of the island consists of 37 verified species, one of which is represented by two varieties. A dot distribution map of each taxon is presented, based exclusively on over 1200 voucher specimens collected from 1841 to 1994. Citations of examined specimens are presented and indicate the most recent collection from each locality, along with additional information. Thirteen species have not been collected or reported from Long Island during the past 60 years. References to historical Long Island orchid publications are also presented.