Columbia subject headings:
Gymnosperms--New York (State)--Geographical distribution.
Gymnosperms--New York (State)--Identification.
Harvard subject headings:
Conifers--New York (State)--Classification.
Cupressaceae--New York (State)--Classification.
Pinaceae--New York (State)--Classification.
Taxaceae--New York (State)--Classification.
Princeton subject headings: