Article
Sycamore, Buttonwood, Platanus occidentalis: Sycamore Family (Platanaceae)December 21 1967 – March 20 1968
Tyznik, Anthony
Photographic image
Betula papyrifera Marsh. (paper birch), trunks and branchesDecember 1967
Kohout, Kitty
Photographic image
[Aerial Photograph of The Morton Arboretum and Adjacent Areas, enlargement]November 19 1967
Chicago Aerial Survey Co.
Map
Morton Arboretum, DuPage County, Illinois (topographic survey)November 19 1967
Chicago Aerial Survey Co.
Photographic image
[Aerial Photograph of The Morton Arboretum and Adjacent Areas]November 19 1967
Chicago Aerial Survey Co.
Photographic image
Symphyotrichum novae-angliae (L.) G.L. Nesom (New England aster), habitSeptember 23 1967
Article
Amur Maple, Acer ginnal: Maple Family (Aceraceae)September 21 – December 20 1967
Tyznik, Anthony
Photographic image
Symphyotrichum novae-angliae (L.) G.L. Nesom (New England aster), habitSeptember 1967