Taxonomic determinations of previously unidentified specimens collected in 1974, and of a few newly collected taxa, have enabled us to add seven genera and 29 species to the recorded flora of the Park. Further field and laboratory work have allowed us to delete one family, one genus, and four species. Diospyros virginiana (Ebenaceae) has been deleted from the flora after intensive efforts failed to verify a 1974 visual record. The new totals for the Caumsett flora are: 103 families, 340 genera, and 660 species. One addition, Rumex pulcher, is new to New York State.